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found in the\n * https://raw.github.com/facebook/regenerator/master/LICENSE file. An\n * additional grant of patent rights can be found in the PATENTS file in\n * the same directory.\n */\n\n!(function(global) {\n \"use strict\";\n\n var Op = Object.prototype;\n var hasOwn = Op.hasOwnProperty;\n var undefined; // More compressible than void 0.\n var $Symbol = typeof Symbol === \"function\" ? Symbol : {};\n var iteratorSymbol = $Symbol.iterator || \"@@iterator\";\n var asyncIteratorSymbol = $Symbol.asyncIterator || \"@@asyncIterator\";\n var toStringTagSymbol = $Symbol.toStringTag || \"@@toStringTag\";\n\n var inModule = typeof module === \"object\";\n var runtime = global.regeneratorRuntime;\n if (runtime) {\n if (inModule) {\n // If regeneratorRuntime is defined globally and we're in a module,\n // make the exports object identical to regeneratorRuntime.\n module.exports = runtime;\n }\n // Don't bother evaluating the rest of this file if the runtime was\n // already defined globally.\n return;\n }\n\n // Define the runtime globally (as expected by generated code) as either\n // module.exports (if we're in a module) or a new, empty object.\n runtime = global.regeneratorRuntime = inModule ? module.exports : {};\n\n function wrap(innerFn, outerFn, self, tryLocsList) {\n // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.\n var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;\n var generator = Object.create(protoGenerator.prototype);\n var context = new Context(tryLocsList || []);\n\n // The ._invoke method unifies the implementations of the .next,\n // .throw, and .return methods.\n generator._invoke = makeInvokeMethod(innerFn, self, context);\n\n return generator;\n }\n runtime.wrap = wrap;\n\n // Try/catch helper to minimize deoptimizations. 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If\n // context.method was \"next\", forget context.arg since it has been\n // \"consumed\" by the delegate iterator. If context.method was\n // \"return\", allow the original .return call to continue in the\n // outer generator.\n if (context.method !== \"return\") {\n context.method = \"next\";\n context.arg = undefined;\n }\n\n } else {\n // Re-yield the result returned by the delegate method.\n return info;\n }\n\n // The delegate iterator is finished, so forget it and continue with\n // the outer generator.\n context.delegate = null;\n return ContinueSentinel;\n }\n\n // Define Generator.prototype.{next,throw,return} in terms of the\n // unified ._invoke helper method.\n defineIteratorMethods(Gp);\n\n Gp[toStringTagSymbol] = \"Generator\";\n\n // A Generator should always return itself as the iterator object when the\n // @@iterator function is called on it. Some browsers' implementations of the\n // iterator prototype chain incorrectly implement this, causing the Generator\n // object to not be returned from this call. This ensures that doesn't happen.\n // See https://github.com/facebook/regenerator/issues/274 for more details.\n Gp[iteratorSymbol] = function() {\n return this;\n };\n\n Gp.toString = function() {\n return \"[object Generator]\";\n };\n\n function pushTryEntry(locs) {\n var entry = { tryLoc: locs[0] };\n\n if (1 in locs) {\n entry.catchLoc = locs[1];\n }\n\n if (2 in locs) {\n entry.finallyLoc = locs[2];\n entry.afterLoc = locs[3];\n }\n\n this.tryEntries.push(entry);\n }\n\n function resetTryEntry(entry) {\n var record = entry.completion || {};\n record.type = \"normal\";\n delete record.arg;\n entry.completion = record;\n }\n\n function Context(tryLocsList) {\n // The root entry object (effectively a try statement without a catch\n // or a finally block) gives us a place to store values thrown from\n // locations where there is no enclosing try statement.\n this.tryEntries = [{ tryLoc: \"root\" }];\n tryLocsList.forEach(pushTryEntry, this);\n this.reset(true);\n }\n\n runtime.keys = function(object) {\n var keys = [];\n for (var key in object) {\n keys.push(key);\n }\n keys.reverse();\n\n // Rather than returning an object with a next method, we keep\n // things simple and return the next function itself.\n return function next() {\n while (keys.length) {\n var key = keys.pop();\n if (key in object) {\n next.value = key;\n next.done = false;\n return next;\n }\n }\n\n // To avoid creating an additional object, we just hang the .value\n // and .done properties off the next function object itself. This\n // also ensures that the minifier will not anonymize the function.\n next.done = true;\n return next;\n };\n };\n\n function values(iterable) {\n if (iterable) {\n var iteratorMethod = iterable[iteratorSymbol];\n if (iteratorMethod) {\n return iteratorMethod.call(iterable);\n }\n\n if (typeof iterable.next === \"function\") {\n return iterable;\n }\n\n if (!isNaN(iterable.length)) {\n var i = -1, next = function next() {\n while (++i < iterable.length) {\n if (hasOwn.call(iterable, i)) {\n next.value = iterable[i];\n next.done = false;\n return next;\n }\n }\n\n next.value = undefined;\n next.done = true;\n\n return next;\n };\n\n return next.next = next;\n }\n }\n\n // Return an iterator with no values.\n return { next: doneResult };\n }\n runtime.values = values;\n\n function doneResult() {\n return { value: undefined, done: true };\n }\n\n Context.prototype = {\n constructor: Context,\n\n reset: function(skipTempReset) {\n this.prev = 0;\n this.next = 0;\n // Resetting context._sent for legacy support of Babel's\n // function.sent implementation.\n this.sent = this._sent = undefined;\n this.done = false;\n this.delegate = null;\n\n this.method = \"next\";\n this.arg = undefined;\n\n this.tryEntries.forEach(resetTryEntry);\n\n if (!skipTempReset) {\n for (var name in this) {\n // Not sure about the optimal order of these conditions:\n if (name.charAt(0) === \"t\" &&\n hasOwn.call(this, name) &&\n !isNaN(+name.slice(1))) {\n this[name] = undefined;\n }\n }\n }\n },\n\n stop: function() {\n this.done = true;\n\n var rootEntry = this.tryEntries[0];\n var rootRecord = rootEntry.completion;\n if (rootRecord.type === \"throw\") {\n throw rootRecord.arg;\n }\n\n return this.rval;\n },\n\n dispatchException: function(exception) {\n if (this.done) {\n throw exception;\n }\n\n var context = this;\n function handle(loc, caught) {\n record.type = \"throw\";\n record.arg = exception;\n context.next = loc;\n\n if (caught) {\n // If the dispatched exception was caught by a catch block,\n // then let that catch block handle the exception normally.\n context.method = \"next\";\n context.arg = undefined;\n }\n\n return !! caught;\n }\n\n for (var i = this.tryEntries.length - 1; i >= 0; --i) {\n var entry = this.tryEntries[i];\n var record = entry.completion;\n\n if (entry.tryLoc === \"root\") {\n // Exception thrown outside of any try block that could handle\n // it, so set the completion value of the entire function to\n // throw the exception.\n return handle(\"end\");\n }\n\n if (entry.tryLoc <= this.prev) {\n var hasCatch = hasOwn.call(entry, \"catchLoc\");\n var hasFinally = hasOwn.call(entry, \"finallyLoc\");\n\n if (hasCatch && hasFinally) {\n if (this.prev < entry.catchLoc) {\n return handle(entry.catchLoc, true);\n } else if (this.prev < entry.finallyLoc) {\n return handle(entry.finallyLoc);\n }\n\n } else if (hasCatch) {\n if (this.prev < entry.catchLoc) {\n return handle(entry.catchLoc, true);\n }\n\n } else if (hasFinally) {\n if (this.prev < entry.finallyLoc) {\n return handle(entry.finallyLoc);\n }\n\n } else {\n throw new Error(\"try statement without catch or finally\");\n }\n }\n }\n },\n\n abrupt: function(type, arg) {\n for (var i = this.tryEntries.length - 1; i >= 0; --i) {\n var entry = this.tryEntries[i];\n if (entry.tryLoc <= this.prev &&\n hasOwn.call(entry, \"finallyLoc\") &&\n this.prev < entry.finallyLoc) {\n var finallyEntry = entry;\n break;\n }\n }\n\n if (finallyEntry &&\n (type === \"break\" ||\n type === \"continue\") &&\n finallyEntry.tryLoc <= arg &&\n arg <= finallyEntry.finallyLoc) {\n // Ignore the finally entry if control is not jumping to a\n // location outside the try/catch block.\n finallyEntry = null;\n }\n\n var record = finallyEntry ? finallyEntry.completion : {};\n record.type = type;\n record.arg = arg;\n\n if (finallyEntry) {\n this.method = \"next\";\n this.next = finallyEntry.finallyLoc;\n return ContinueSentinel;\n }\n\n return this.complete(record);\n },\n\n complete: function(record, afterLoc) {\n if (record.type === \"throw\") {\n throw record.arg;\n }\n\n if (record.type === \"break\" ||\n record.type === \"continue\") {\n this.next = record.arg;\n } else if (record.type === \"return\") {\n this.rval = this.arg = record.arg;\n this.method = \"return\";\n this.next = \"end\";\n } else if (record.type === \"normal\" && afterLoc) {\n this.next = afterLoc;\n }\n\n return ContinueSentinel;\n },\n\n finish: function(finallyLoc) {\n for (var i = this.tryEntries.length - 1; i >= 0; --i) {\n var entry = this.tryEntries[i];\n if (entry.finallyLoc === finallyLoc) {\n this.complete(entry.completion, entry.afterLoc);\n resetTryEntry(entry);\n return ContinueSentinel;\n }\n }\n },\n\n \"catch\": function(tryLoc) {\n for (var i = this.tryEntries.length - 1; i >= 0; --i) {\n var entry = this.tryEntries[i];\n if (entry.tryLoc === tryLoc) {\n var record = entry.completion;\n if (record.type === \"throw\") {\n var thrown = record.arg;\n resetTryEntry(entry);\n }\n return thrown;\n }\n }\n\n // The context.catch method must only be called with a location\n // argument that corresponds to a known catch block.\n throw new Error(\"illegal catch attempt\");\n },\n\n delegateYield: function(iterable, resultName, nextLoc) {\n this.delegate = {\n iterator: values(iterable),\n resultName: resultName,\n nextLoc: nextLoc\n };\n\n if (this.method === \"next\") {\n // Deliberately forget the last sent value so that we don't\n // accidentally pass it on to the delegate.\n this.arg = undefined;\n }\n\n return ContinueSentinel;\n }\n };\n})(\n // Among the various tricks for obtaining a reference to the global\n // object, this seems to be the most reliable technique that does not\n // use indirect eval (which violates Content Security Policy).\n typeof global === \"object\" ? global :\n typeof window === \"object\" ? window :\n typeof self === \"object\" ? self : this\n);\n","/*!\n * Bootstrap v3.3.7 (http://getbootstrap.com)\n * Copyright 2011-2016 Twitter, Inc.\n * Licensed under the MIT license\n */\n\nif (typeof jQuery === 'undefined') {\n throw new Error('Bootstrap\\'s JavaScript requires jQuery')\n}\n\n+function ($) {\n 'use strict';\n var version = $.fn.jquery.split(' ')[0].split('.')\n if ((version[0] < 2 && version[1] < 9) || (version[0] == 1 && version[1] == 9 && version[2] < 1) || (version[0] > 3)) {\n throw new Error('Bootstrap\\'s JavaScript requires jQuery version 1.9.1 or higher, but lower than version 4')\n }\n}(jQuery);\n\n/* ========================================================================\n * Bootstrap: transition.js v3.3.7\n * http://getbootstrap.com/javascript/#transitions\n * ========================================================================\n * Copyright 2011-2016 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n\n+function ($) {\n 'use strict';\n\n // CSS TRANSITION SUPPORT (Shoutout: http://www.modernizr.com/)\n // ============================================================\n\n function transitionEnd() {\n var el = document.createElement('bootstrap')\n\n var transEndEventNames = {\n WebkitTransition : 'webkitTransitionEnd',\n MozTransition : 'transitionend',\n OTransition : 'oTransitionEnd otransitionend',\n transition : 'transitionend'\n }\n\n for (var name in transEndEventNames) {\n if (el.style[name] !== undefined) {\n return { end: transEndEventNames[name] }\n }\n }\n\n return false // explicit for ie8 ( ._.)\n }\n\n // http://blog.alexmaccaw.com/css-transitions\n $.fn.emulateTransitionEnd = function (duration) {\n var called = false\n var $el = this\n $(this).one('bsTransitionEnd', function () { called = true })\n var callback = function () { if (!called) $($el).trigger($.support.transition.end) }\n setTimeout(callback, duration)\n return this\n }\n\n $(function () {\n $.support.transition = transitionEnd()\n\n if (!$.support.transition) return\n\n $.event.special.bsTransitionEnd = {\n bindType: $.support.transition.end,\n delegateType: $.support.transition.end,\n handle: function (e) {\n if ($(e.target).is(this)) return e.handleObj.handler.apply(this, arguments)\n }\n }\n })\n\n}(jQuery);\n\n/* ========================================================================\n * Bootstrap: alert.js v3.3.7\n * http://getbootstrap.com/javascript/#alerts\n * ========================================================================\n * Copyright 2011-2016 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n\n+function ($) {\n 'use strict';\n\n // ALERT CLASS DEFINITION\n // ======================\n\n var dismiss = '[data-dismiss=\"alert\"]'\n var Alert = function (el) {\n $(el).on('click', dismiss, this.close)\n }\n\n Alert.VERSION = '3.3.7'\n\n Alert.TRANSITION_DURATION = 150\n\n Alert.prototype.close = function (e) {\n var $this = $(this)\n var selector = $this.attr('data-target')\n\n if (!selector) {\n selector = $this.attr('href')\n selector = selector && selector.replace(/.*(?=#[^\\s]*$)/, '') // strip for ie7\n }\n\n var $parent = $(selector === '#' ? [] : selector)\n\n if (e) e.preventDefault()\n\n if (!$parent.length) {\n $parent = $this.closest('.alert')\n }\n\n $parent.trigger(e = $.Event('close.bs.alert'))\n\n if (e.isDefaultPrevented()) return\n\n $parent.removeClass('in')\n\n function removeElement() {\n // detach from parent, fire event then clean up data\n $parent.detach().trigger('closed.bs.alert').remove()\n }\n\n $.support.transition && $parent.hasClass('fade') ?\n $parent\n .one('bsTransitionEnd', removeElement)\n .emulateTransitionEnd(Alert.TRANSITION_DURATION) :\n removeElement()\n }\n\n\n // ALERT PLUGIN DEFINITION\n // =======================\n\n function Plugin(option) {\n return this.each(function () {\n var $this = $(this)\n var data = $this.data('bs.alert')\n\n if (!data) $this.data('bs.alert', (data = new Alert(this)))\n if (typeof option == 'string') data[option].call($this)\n })\n }\n\n var old = $.fn.alert\n\n $.fn.alert = Plugin\n $.fn.alert.Constructor = Alert\n\n\n // ALERT NO CONFLICT\n // =================\n\n $.fn.alert.noConflict = function () {\n $.fn.alert = old\n return this\n }\n\n\n // ALERT DATA-API\n // ==============\n\n $(document).on('click.bs.alert.data-api', dismiss, Alert.prototype.close)\n\n}(jQuery);\n\n/* ========================================================================\n * Bootstrap: button.js v3.3.7\n * http://getbootstrap.com/javascript/#buttons\n * ========================================================================\n * Copyright 2011-2016 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n\n+function ($) {\n 'use strict';\n\n // BUTTON PUBLIC CLASS DEFINITION\n // ==============================\n\n var Button = function (element, options) {\n this.$element = $(element)\n this.options = $.extend({}, Button.DEFAULTS, options)\n this.isLoading = false\n }\n\n Button.VERSION = '3.3.7'\n\n Button.DEFAULTS = {\n loadingText: 'loading...'\n }\n\n Button.prototype.setState = function (state) {\n var d = 'disabled'\n var $el = this.$element\n var val = $el.is('input') ? 'val' : 'html'\n var data = $el.data()\n\n state += 'Text'\n\n if (data.resetText == null) $el.data('resetText', $el[val]())\n\n // push to event loop to allow forms to submit\n setTimeout($.proxy(function () {\n $el[val](data[state] == null ? this.options[state] : data[state])\n\n if (state == 'loadingText') {\n this.isLoading = true\n $el.addClass(d).attr(d, d).prop(d, true)\n } else if (this.isLoading) {\n this.isLoading = false\n $el.removeClass(d).removeAttr(d).prop(d, false)\n }\n }, this), 0)\n }\n\n Button.prototype.toggle = function () {\n var changed = true\n var $parent = this.$element.closest('[data-toggle=\"buttons\"]')\n\n if ($parent.length) {\n var $input = this.$element.find('input')\n if ($input.prop('type') == 'radio') {\n if ($input.prop('checked')) changed = false\n $parent.find('.active').removeClass('active')\n this.$element.addClass('active')\n } else if ($input.prop('type') == 'checkbox') {\n if (($input.prop('checked')) !== this.$element.hasClass('active')) changed = false\n this.$element.toggleClass('active')\n }\n $input.prop('checked', this.$element.hasClass('active'))\n if (changed) $input.trigger('change')\n } else {\n this.$element.attr('aria-pressed', !this.$element.hasClass('active'))\n this.$element.toggleClass('active')\n }\n }\n\n\n // BUTTON PLUGIN DEFINITION\n // ========================\n\n function Plugin(option) {\n return this.each(function () {\n var $this = $(this)\n var data = $this.data('bs.button')\n var options = typeof option == 'object' && option\n\n if (!data) $this.data('bs.button', (data = new Button(this, options)))\n\n if (option == 'toggle') data.toggle()\n else if (option) data.setState(option)\n })\n }\n\n var old = $.fn.button\n\n $.fn.button = Plugin\n $.fn.button.Constructor = Button\n\n\n // BUTTON NO CONFLICT\n // ==================\n\n $.fn.button.noConflict = function () {\n $.fn.button = old\n return this\n }\n\n\n // BUTTON DATA-API\n // ===============\n\n $(document)\n .on('click.bs.button.data-api', '[data-toggle^=\"button\"]', function (e) {\n var $btn = $(e.target).closest('.btn')\n Plugin.call($btn, 'toggle')\n if (!($(e.target).is('input[type=\"radio\"], input[type=\"checkbox\"]'))) {\n // Prevent double click on radios, and the double selections (so cancellation) on checkboxes\n e.preventDefault()\n // The target component still receive the focus\n if ($btn.is('input,button')) $btn.trigger('focus')\n else $btn.find('input:visible,button:visible').first().trigger('focus')\n }\n })\n .on('focus.bs.button.data-api blur.bs.button.data-api', '[data-toggle^=\"button\"]', function (e) {\n $(e.target).closest('.btn').toggleClass('focus', /^focus(in)?$/.test(e.type))\n })\n\n}(jQuery);\n\n/* ========================================================================\n * Bootstrap: carousel.js v3.3.7\n * http://getbootstrap.com/javascript/#carousel\n * ========================================================================\n * Copyright 2011-2016 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n\n+function ($) {\n 'use strict';\n\n // CAROUSEL CLASS DEFINITION\n // =========================\n\n var Carousel = function (element, options) {\n this.$element = $(element)\n this.$indicators = this.$element.find('.carousel-indicators')\n this.options = options\n this.paused = null\n this.sliding = null\n this.interval = null\n this.$active = null\n this.$items = null\n\n this.options.keyboard && this.$element.on('keydown.bs.carousel', $.proxy(this.keydown, this))\n\n this.options.pause == 'hover' && !('ontouchstart' in document.documentElement) && this.$element\n .on('mouseenter.bs.carousel', $.proxy(this.pause, this))\n .on('mouseleave.bs.carousel', $.proxy(this.cycle, this))\n }\n\n Carousel.VERSION = '3.3.7'\n\n Carousel.TRANSITION_DURATION = 600\n\n Carousel.DEFAULTS = {\n interval: 5000,\n pause: 'hover',\n wrap: true,\n keyboard: true\n }\n\n Carousel.prototype.keydown = function (e) {\n if (/input|textarea/i.test(e.target.tagName)) return\n switch (e.which) {\n case 37: this.prev(); break\n case 39: this.next(); break\n default: return\n }\n\n e.preventDefault()\n }\n\n Carousel.prototype.cycle = function (e) {\n e || (this.paused = false)\n\n this.interval && clearInterval(this.interval)\n\n this.options.interval\n && !this.paused\n && (this.interval = setInterval($.proxy(this.next, this), this.options.interval))\n\n return this\n }\n\n Carousel.prototype.getItemIndex = function (item) {\n this.$items = item.parent().children('.item')\n return this.$items.index(item || this.$active)\n }\n\n Carousel.prototype.getItemForDirection = function (direction, active) {\n var activeIndex = this.getItemIndex(active)\n var willWrap = (direction == 'prev' && activeIndex === 0)\n || (direction == 'next' && activeIndex == (this.$items.length - 1))\n if (willWrap && !this.options.wrap) return active\n var delta = direction == 'prev' ? -1 : 1\n var itemIndex = (activeIndex + delta) % this.$items.length\n return this.$items.eq(itemIndex)\n }\n\n Carousel.prototype.to = function (pos) {\n var that = this\n var activeIndex = this.getItemIndex(this.$active = this.$element.find('.item.active'))\n\n if (pos > (this.$items.length - 1) || pos < 0) return\n\n if (this.sliding) return this.$element.one('slid.bs.carousel', function () { that.to(pos) }) // yes, \"slid\"\n if (activeIndex == pos) return this.pause().cycle()\n\n return this.slide(pos > activeIndex ? 'next' : 'prev', this.$items.eq(pos))\n }\n\n Carousel.prototype.pause = function (e) {\n e || (this.paused = true)\n\n if (this.$element.find('.next, .prev').length && $.support.transition) {\n this.$element.trigger($.support.transition.end)\n this.cycle(true)\n }\n\n this.interval = clearInterval(this.interval)\n\n return this\n }\n\n Carousel.prototype.next = function () {\n if (this.sliding) return\n return this.slide('next')\n }\n\n Carousel.prototype.prev = function () {\n if (this.sliding) return\n return this.slide('prev')\n }\n\n Carousel.prototype.slide = function (type, next) {\n var $active = this.$element.find('.item.active')\n var $next = next || this.getItemForDirection(type, $active)\n var isCycling = this.interval\n var direction = type == 'next' ? 'left' : 'right'\n var that = this\n\n if ($next.hasClass('active')) return (this.sliding = false)\n\n var relatedTarget = $next[0]\n var slideEvent = $.Event('slide.bs.carousel', {\n relatedTarget: relatedTarget,\n direction: direction\n })\n this.$element.trigger(slideEvent)\n if (slideEvent.isDefaultPrevented()) return\n\n this.sliding = true\n\n isCycling && this.pause()\n\n if (this.$indicators.length) {\n this.$indicators.find('.active').removeClass('active')\n var $nextIndicator = $(this.$indicators.children()[this.getItemIndex($next)])\n $nextIndicator && $nextIndicator.addClass('active')\n }\n\n var slidEvent = $.Event('slid.bs.carousel', { relatedTarget: relatedTarget, direction: direction }) // yes, \"slid\"\n if ($.support.transition && this.$element.hasClass('slide')) {\n $next.addClass(type)\n $next[0].offsetWidth // force reflow\n $active.addClass(direction)\n $next.addClass(direction)\n $active\n .one('bsTransitionEnd', function () {\n $next.removeClass([type, direction].join(' ')).addClass('active')\n $active.removeClass(['active', direction].join(' '))\n that.sliding = false\n setTimeout(function () {\n that.$element.trigger(slidEvent)\n }, 0)\n })\n .emulateTransitionEnd(Carousel.TRANSITION_DURATION)\n } else {\n $active.removeClass('active')\n $next.addClass('active')\n this.sliding = false\n this.$element.trigger(slidEvent)\n }\n\n isCycling && this.cycle()\n\n return this\n }\n\n\n // CAROUSEL PLUGIN DEFINITION\n // ==========================\n\n function Plugin(option) {\n return this.each(function () {\n var $this = $(this)\n var data = $this.data('bs.carousel')\n var options = $.extend({}, Carousel.DEFAULTS, $this.data(), typeof option == 'object' && option)\n var action = typeof option == 'string' ? option : options.slide\n\n if (!data) $this.data('bs.carousel', (data = new Carousel(this, options)))\n if (typeof option == 'number') data.to(option)\n else if (action) data[action]()\n else if (options.interval) data.pause().cycle()\n })\n }\n\n var old = $.fn.carousel\n\n $.fn.carousel = Plugin\n $.fn.carousel.Constructor = Carousel\n\n\n // CAROUSEL NO CONFLICT\n // ====================\n\n $.fn.carousel.noConflict = function () {\n $.fn.carousel = old\n return this\n }\n\n\n // CAROUSEL DATA-API\n // =================\n\n var clickHandler = function (e) {\n var href\n var $this = $(this)\n var $target = $($this.attr('data-target') || (href = $this.attr('href')) && href.replace(/.*(?=#[^\\s]+$)/, '')) // strip for ie7\n if (!$target.hasClass('carousel')) return\n var options = $.extend({}, $target.data(), $this.data())\n var slideIndex = $this.attr('data-slide-to')\n if (slideIndex) options.interval = false\n\n Plugin.call($target, options)\n\n if (slideIndex) {\n $target.data('bs.carousel').to(slideIndex)\n }\n\n e.preventDefault()\n }\n\n $(document)\n .on('click.bs.carousel.data-api', '[data-slide]', clickHandler)\n .on('click.bs.carousel.data-api', '[data-slide-to]', clickHandler)\n\n $(window).on('load', function () {\n $('[data-ride=\"carousel\"]').each(function () {\n var $carousel = $(this)\n Plugin.call($carousel, $carousel.data())\n })\n })\n\n}(jQuery);\n\n/* ========================================================================\n * Bootstrap: collapse.js v3.3.7\n * http://getbootstrap.com/javascript/#collapse\n * ========================================================================\n * Copyright 2011-2016 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n/* jshint latedef: false */\n\n+function ($) {\n 'use strict';\n\n // COLLAPSE PUBLIC CLASS DEFINITION\n // ================================\n\n var Collapse = function (element, options) {\n this.$element = $(element)\n this.options = $.extend({}, Collapse.DEFAULTS, options)\n this.$trigger = $('[data-toggle=\"collapse\"][href=\"#' + element.id + '\"],' +\n '[data-toggle=\"collapse\"][data-target=\"#' + element.id + '\"]')\n this.transitioning = null\n\n if (this.options.parent) {\n this.$parent = this.getParent()\n } else {\n this.addAriaAndCollapsedClass(this.$element, this.$trigger)\n }\n\n if (this.options.toggle) this.toggle()\n }\n\n Collapse.VERSION = '3.3.7'\n\n Collapse.TRANSITION_DURATION = 350\n\n Collapse.DEFAULTS = {\n toggle: true\n }\n\n Collapse.prototype.dimension = function () {\n var hasWidth = this.$element.hasClass('width')\n return hasWidth ? 'width' : 'height'\n }\n\n Collapse.prototype.show = function () {\n if (this.transitioning || this.$element.hasClass('in')) return\n\n var activesData\n var actives = this.$parent && this.$parent.children('.panel').children('.in, .collapsing')\n\n if (actives && actives.length) {\n activesData = actives.data('bs.collapse')\n if (activesData && activesData.transitioning) return\n }\n\n var startEvent = $.Event('show.bs.collapse')\n this.$element.trigger(startEvent)\n if (startEvent.isDefaultPrevented()) return\n\n if (actives && actives.length) {\n Plugin.call(actives, 'hide')\n activesData || actives.data('bs.collapse', null)\n }\n\n var dimension = this.dimension()\n\n this.$element\n .removeClass('collapse')\n .addClass('collapsing')[dimension](0)\n .attr('aria-expanded', true)\n\n this.$trigger\n .removeClass('collapsed')\n .attr('aria-expanded', true)\n\n this.transitioning = 1\n\n var complete = function () {\n this.$element\n .removeClass('collapsing')\n .addClass('collapse in')[dimension]('')\n this.transitioning = 0\n this.$element\n .trigger('shown.bs.collapse')\n }\n\n if (!$.support.transition) return complete.call(this)\n\n var scrollSize = $.camelCase(['scroll', dimension].join('-'))\n\n this.$element\n .one('bsTransitionEnd', $.proxy(complete, this))\n .emulateTransitionEnd(Collapse.TRANSITION_DURATION)[dimension](this.$element[0][scrollSize])\n }\n\n Collapse.prototype.hide = function () {\n if (this.transitioning || !this.$element.hasClass('in')) return\n\n var startEvent = $.Event('hide.bs.collapse')\n this.$element.trigger(startEvent)\n if (startEvent.isDefaultPrevented()) return\n\n var dimension = this.dimension()\n\n this.$element[dimension](this.$element[dimension]())[0].offsetHeight\n\n this.$element\n .addClass('collapsing')\n .removeClass('collapse in')\n .attr('aria-expanded', false)\n\n this.$trigger\n .addClass('collapsed')\n .attr('aria-expanded', false)\n\n this.transitioning = 1\n\n var complete = function () {\n this.transitioning = 0\n this.$element\n .removeClass('collapsing')\n .addClass('collapse')\n .trigger('hidden.bs.collapse')\n }\n\n if (!$.support.transition) return complete.call(this)\n\n this.$element\n [dimension](0)\n .one('bsTransitionEnd', $.proxy(complete, this))\n .emulateTransitionEnd(Collapse.TRANSITION_DURATION)\n }\n\n Collapse.prototype.toggle = function () {\n this[this.$element.hasClass('in') ? 'hide' : 'show']()\n }\n\n Collapse.prototype.getParent = function () {\n return $(this.options.parent)\n .find('[data-toggle=\"collapse\"][data-parent=\"' + this.options.parent + '\"]')\n .each($.proxy(function (i, element) {\n var $element = $(element)\n this.addAriaAndCollapsedClass(getTargetFromTrigger($element), $element)\n }, this))\n .end()\n }\n\n Collapse.prototype.addAriaAndCollapsedClass = function ($element, $trigger) {\n var isOpen = $element.hasClass('in')\n\n $element.attr('aria-expanded', isOpen)\n $trigger\n .toggleClass('collapsed', !isOpen)\n .attr('aria-expanded', isOpen)\n }\n\n function getTargetFromTrigger($trigger) {\n var href\n var target = $trigger.attr('data-target')\n || (href = $trigger.attr('href')) && href.replace(/.*(?=#[^\\s]+$)/, '') // strip for ie7\n\n return $(target)\n }\n\n\n // COLLAPSE PLUGIN DEFINITION\n // ==========================\n\n function Plugin(option) {\n return this.each(function () {\n var $this = $(this)\n var data = $this.data('bs.collapse')\n var options = $.extend({}, Collapse.DEFAULTS, $this.data(), typeof option == 'object' && option)\n\n if (!data && options.toggle && /show|hide/.test(option)) options.toggle = false\n if (!data) $this.data('bs.collapse', (data = new Collapse(this, options)))\n if (typeof option == 'string') data[option]()\n })\n }\n\n var old = $.fn.collapse\n\n $.fn.collapse = Plugin\n $.fn.collapse.Constructor = Collapse\n\n\n // COLLAPSE NO CONFLICT\n // ====================\n\n $.fn.collapse.noConflict = function () {\n $.fn.collapse = old\n return this\n }\n\n\n // COLLAPSE DATA-API\n // =================\n\n $(document).on('click.bs.collapse.data-api', '[data-toggle=\"collapse\"]', function (e) {\n var $this = $(this)\n\n if (!$this.attr('data-target')) e.preventDefault()\n\n var $target = getTargetFromTrigger($this)\n var data = $target.data('bs.collapse')\n var option = data ? 'toggle' : $this.data()\n\n Plugin.call($target, option)\n })\n\n}(jQuery);\n\n/* ========================================================================\n * Bootstrap: dropdown.js v3.3.7\n * http://getbootstrap.com/javascript/#dropdowns\n * ========================================================================\n * Copyright 2011-2016 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n\n+function ($) {\n 'use strict';\n\n // DROPDOWN CLASS DEFINITION\n // =========================\n\n var backdrop = '.dropdown-backdrop'\n var toggle = '[data-toggle=\"dropdown\"]'\n var Dropdown = function (element) {\n $(element).on('click.bs.dropdown', this.toggle)\n }\n\n Dropdown.VERSION = '3.3.7'\n\n function getParent($this) {\n var selector = $this.attr('data-target')\n\n if (!selector) {\n selector = $this.attr('href')\n selector = selector && /#[A-Za-z]/.test(selector) && selector.replace(/.*(?=#[^\\s]*$)/, '') // strip for ie7\n }\n\n var $parent = selector && $(selector)\n\n return $parent && $parent.length ? $parent : $this.parent()\n }\n\n function clearMenus(e) {\n if (e && e.which === 3) return\n $(backdrop).remove()\n $(toggle).each(function () {\n var $this = $(this)\n var $parent = getParent($this)\n var relatedTarget = { relatedTarget: this }\n\n if (!$parent.hasClass('open')) return\n\n if (e && e.type == 'click' && /input|textarea/i.test(e.target.tagName) && $.contains($parent[0], e.target)) return\n\n $parent.trigger(e = $.Event('hide.bs.dropdown', relatedTarget))\n\n if (e.isDefaultPrevented()) return\n\n $this.attr('aria-expanded', 'false')\n $parent.removeClass('open').trigger($.Event('hidden.bs.dropdown', relatedTarget))\n })\n }\n\n Dropdown.prototype.toggle = function (e) {\n var $this = $(this)\n\n if ($this.is('.disabled, :disabled')) return\n\n var $parent = getParent($this)\n var isActive = $parent.hasClass('open')\n\n clearMenus()\n\n if (!isActive) {\n if ('ontouchstart' in document.documentElement && !$parent.closest('.navbar-nav').length) {\n // if mobile we use a backdrop because click events don't delegate\n $(document.createElement('div'))\n .addClass('dropdown-backdrop')\n .insertAfter($(this))\n .on('click', clearMenus)\n }\n\n var relatedTarget = { relatedTarget: this }\n $parent.trigger(e = $.Event('show.bs.dropdown', relatedTarget))\n\n if (e.isDefaultPrevented()) return\n\n $this\n .trigger('focus')\n .attr('aria-expanded', 'true')\n\n $parent\n .toggleClass('open')\n .trigger($.Event('shown.bs.dropdown', relatedTarget))\n }\n\n return false\n }\n\n Dropdown.prototype.keydown = function (e) {\n if (!/(38|40|27|32)/.test(e.which) || /input|textarea/i.test(e.target.tagName)) return\n\n var $this = $(this)\n\n e.preventDefault()\n e.stopPropagation()\n\n if ($this.is('.disabled, :disabled')) return\n\n var $parent = getParent($this)\n var isActive = $parent.hasClass('open')\n\n if (!isActive && e.which != 27 || isActive && e.which == 27) {\n if (e.which == 27) $parent.find(toggle).trigger('focus')\n return $this.trigger('click')\n }\n\n var desc = ' li:not(.disabled):visible a'\n var $items = $parent.find('.dropdown-menu' + desc)\n\n if (!$items.length) return\n\n var index = $items.index(e.target)\n\n if (e.which == 38 && index > 0) index-- // up\n if (e.which == 40 && index < $items.length - 1) index++ // down\n if (!~index) index = 0\n\n $items.eq(index).trigger('focus')\n }\n\n\n // DROPDOWN PLUGIN DEFINITION\n // ==========================\n\n function Plugin(option) {\n return this.each(function () {\n var $this = $(this)\n var data = $this.data('bs.dropdown')\n\n if (!data) $this.data('bs.dropdown', (data = new Dropdown(this)))\n if (typeof option == 'string') data[option].call($this)\n })\n }\n\n var old = $.fn.dropdown\n\n $.fn.dropdown = Plugin\n $.fn.dropdown.Constructor = Dropdown\n\n\n // DROPDOWN NO CONFLICT\n // ====================\n\n $.fn.dropdown.noConflict = function () {\n $.fn.dropdown = old\n return this\n }\n\n\n // APPLY TO STANDARD DROPDOWN ELEMENTS\n // ===================================\n\n $(document)\n .on('click.bs.dropdown.data-api', clearMenus)\n .on('click.bs.dropdown.data-api', '.dropdown form', function (e) { e.stopPropagation() })\n .on('click.bs.dropdown.data-api', toggle, Dropdown.prototype.toggle)\n .on('keydown.bs.dropdown.data-api', toggle, Dropdown.prototype.keydown)\n .on('keydown.bs.dropdown.data-api', '.dropdown-menu', Dropdown.prototype.keydown)\n\n}(jQuery);\n\n/* ========================================================================\n * Bootstrap: modal.js v3.3.7\n * http://getbootstrap.com/javascript/#modals\n * ========================================================================\n * Copyright 2011-2016 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n\n+function ($) {\n 'use strict';\n\n // MODAL CLASS DEFINITION\n // ======================\n\n var Modal = function (element, options) {\n this.options = options\n this.$body = $(document.body)\n this.$element = $(element)\n this.$dialog = this.$element.find('.modal-dialog')\n this.$backdrop = null\n this.isShown = null\n this.originalBodyPad = null\n this.scrollbarWidth = 0\n this.ignoreBackdropClick = false\n\n if (this.options.remote) {\n this.$element\n .find('.modal-content')\n .load(this.options.remote, $.proxy(function () {\n this.$element.trigger('loaded.bs.modal')\n }, this))\n }\n }\n\n Modal.VERSION = '3.3.7'\n\n Modal.TRANSITION_DURATION = 300\n Modal.BACKDROP_TRANSITION_DURATION = 150\n\n Modal.DEFAULTS = {\n backdrop: true,\n keyboard: true,\n show: true\n }\n\n Modal.prototype.toggle = function (_relatedTarget) {\n return this.isShown ? this.hide() : this.show(_relatedTarget)\n }\n\n Modal.prototype.show = function (_relatedTarget) {\n var that = this\n var e = $.Event('show.bs.modal', { relatedTarget: _relatedTarget })\n\n this.$element.trigger(e)\n\n if (this.isShown || e.isDefaultPrevented()) return\n\n this.isShown = true\n\n this.checkScrollbar()\n this.setScrollbar()\n this.$body.addClass('modal-open')\n\n this.escape()\n this.resize()\n\n this.$element.on('click.dismiss.bs.modal', '[data-dismiss=\"modal\"]', $.proxy(this.hide, this))\n\n this.$dialog.on('mousedown.dismiss.bs.modal', function () {\n that.$element.one('mouseup.dismiss.bs.modal', function (e) {\n if ($(e.target).is(that.$element)) that.ignoreBackdropClick = true\n })\n })\n\n this.backdrop(function () {\n var transition = $.support.transition && that.$element.hasClass('fade')\n\n if (!that.$element.parent().length) {\n that.$element.appendTo(that.$body) // don't move modals dom position\n }\n\n that.$element\n .show()\n .scrollTop(0)\n\n that.adjustDialog()\n\n if (transition) {\n that.$element[0].offsetWidth // force reflow\n }\n\n that.$element.addClass('in')\n\n that.enforceFocus()\n\n var e = $.Event('shown.bs.modal', { relatedTarget: _relatedTarget })\n\n transition ?\n that.$dialog // wait for modal to slide in\n .one('bsTransitionEnd', function () {\n that.$element.trigger('focus').trigger(e)\n })\n .emulateTransitionEnd(Modal.TRANSITION_DURATION) :\n that.$element.trigger('focus').trigger(e)\n })\n }\n\n Modal.prototype.hide = function (e) {\n if (e) e.preventDefault()\n\n e = $.Event('hide.bs.modal')\n\n this.$element.trigger(e)\n\n if (!this.isShown || e.isDefaultPrevented()) return\n\n this.isShown = false\n\n this.escape()\n this.resize()\n\n $(document).off('focusin.bs.modal')\n\n this.$element\n .removeClass('in')\n .off('click.dismiss.bs.modal')\n .off('mouseup.dismiss.bs.modal')\n\n this.$dialog.off('mousedown.dismiss.bs.modal')\n\n $.support.transition && this.$element.hasClass('fade') ?\n this.$element\n .one('bsTransitionEnd', $.proxy(this.hideModal, this))\n .emulateTransitionEnd(Modal.TRANSITION_DURATION) :\n this.hideModal()\n }\n\n Modal.prototype.enforceFocus = function () {\n $(document)\n .off('focusin.bs.modal') // guard against infinite focus loop\n .on('focusin.bs.modal', $.proxy(function (e) {\n if (document !== e.target &&\n this.$element[0] !== e.target &&\n !this.$element.has(e.target).length) {\n this.$element.trigger('focus')\n }\n }, this))\n }\n\n Modal.prototype.escape = function () {\n if (this.isShown && this.options.keyboard) {\n this.$element.on('keydown.dismiss.bs.modal', $.proxy(function (e) {\n e.which == 27 && this.hide()\n }, this))\n } else if (!this.isShown) {\n this.$element.off('keydown.dismiss.bs.modal')\n }\n }\n\n Modal.prototype.resize = function () {\n if (this.isShown) {\n $(window).on('resize.bs.modal', $.proxy(this.handleUpdate, this))\n } else {\n $(window).off('resize.bs.modal')\n }\n }\n\n Modal.prototype.hideModal = function () {\n var that = this\n this.$element.hide()\n this.backdrop(function () {\n that.$body.removeClass('modal-open')\n that.resetAdjustments()\n that.resetScrollbar()\n that.$element.trigger('hidden.bs.modal')\n })\n }\n\n Modal.prototype.removeBackdrop = function () {\n this.$backdrop && this.$backdrop.remove()\n this.$backdrop = null\n }\n\n Modal.prototype.backdrop = function (callback) {\n var that = this\n var animate = this.$element.hasClass('fade') ? 'fade' : ''\n\n if (this.isShown && this.options.backdrop) {\n var doAnimate = $.support.transition && animate\n\n this.$backdrop = $(document.createElement('div'))\n .addClass('modal-backdrop ' + animate)\n .appendTo(this.$body)\n\n this.$element.on('click.dismiss.bs.modal', $.proxy(function (e) {\n if (this.ignoreBackdropClick) {\n this.ignoreBackdropClick = false\n return\n }\n if (e.target !== e.currentTarget) return\n this.options.backdrop == 'static'\n ? this.$element[0].focus()\n : this.hide()\n }, this))\n\n if (doAnimate) this.$backdrop[0].offsetWidth // force reflow\n\n this.$backdrop.addClass('in')\n\n if (!callback) return\n\n doAnimate ?\n this.$backdrop\n .one('bsTransitionEnd', callback)\n .emulateTransitionEnd(Modal.BACKDROP_TRANSITION_DURATION) :\n callback()\n\n } else if (!this.isShown && this.$backdrop) {\n this.$backdrop.removeClass('in')\n\n var callbackRemove = function () {\n that.removeBackdrop()\n callback && callback()\n }\n $.support.transition && this.$element.hasClass('fade') ?\n this.$backdrop\n .one('bsTransitionEnd', callbackRemove)\n .emulateTransitionEnd(Modal.BACKDROP_TRANSITION_DURATION) :\n callbackRemove()\n\n } else if (callback) {\n callback()\n }\n }\n\n // these following methods are used to handle overflowing modals\n\n Modal.prototype.handleUpdate = function () {\n this.adjustDialog()\n }\n\n Modal.prototype.adjustDialog = function () {\n var modalIsOverflowing = this.$element[0].scrollHeight > document.documentElement.clientHeight\n\n this.$element.css({\n paddingLeft: !this.bodyIsOverflowing && modalIsOverflowing ? this.scrollbarWidth : '',\n paddingRight: this.bodyIsOverflowing && !modalIsOverflowing ? this.scrollbarWidth : ''\n })\n }\n\n Modal.prototype.resetAdjustments = function () {\n this.$element.css({\n paddingLeft: '',\n paddingRight: ''\n })\n }\n\n Modal.prototype.checkScrollbar = function () {\n var fullWindowWidth = window.innerWidth\n if (!fullWindowWidth) { // workaround for missing window.innerWidth in IE8\n var documentElementRect = document.documentElement.getBoundingClientRect()\n fullWindowWidth = documentElementRect.right - Math.abs(documentElementRect.left)\n }\n this.bodyIsOverflowing = document.body.clientWidth < fullWindowWidth\n this.scrollbarWidth = this.measureScrollbar()\n }\n\n Modal.prototype.setScrollbar = function () {\n var bodyPad = parseInt((this.$body.css('padding-right') || 0), 10)\n this.originalBodyPad = document.body.style.paddingRight || ''\n if (this.bodyIsOverflowing) this.$body.css('padding-right', bodyPad + this.scrollbarWidth)\n }\n\n Modal.prototype.resetScrollbar = function () {\n this.$body.css('padding-right', this.originalBodyPad)\n }\n\n Modal.prototype.measureScrollbar = function () { // thx walsh\n var scrollDiv = document.createElement('div')\n scrollDiv.className = 'modal-scrollbar-measure'\n this.$body.append(scrollDiv)\n var scrollbarWidth = scrollDiv.offsetWidth - scrollDiv.clientWidth\n this.$body[0].removeChild(scrollDiv)\n return scrollbarWidth\n }\n\n\n // MODAL PLUGIN DEFINITION\n // =======================\n\n function Plugin(option, _relatedTarget) {\n return this.each(function () {\n var $this = $(this)\n var data = $this.data('bs.modal')\n var options = $.extend({}, Modal.DEFAULTS, $this.data(), typeof option == 'object' && option)\n\n if (!data) $this.data('bs.modal', (data = new Modal(this, options)))\n if (typeof option == 'string') data[option](_relatedTarget)\n else if (options.show) data.show(_relatedTarget)\n })\n }\n\n var old = $.fn.modal\n\n $.fn.modal = Plugin\n $.fn.modal.Constructor = Modal\n\n\n // MODAL NO CONFLICT\n // =================\n\n $.fn.modal.noConflict = function () {\n $.fn.modal = old\n return this\n }\n\n\n // MODAL DATA-API\n // ==============\n\n $(document).on('click.bs.modal.data-api', '[data-toggle=\"modal\"]', function (e) {\n var $this = $(this)\n var href = $this.attr('href')\n var $target = $($this.attr('data-target') || (href && href.replace(/.*(?=#[^\\s]+$)/, ''))) // strip for ie7\n var option = $target.data('bs.modal') ? 'toggle' : $.extend({ remote: !/#/.test(href) && href }, $target.data(), $this.data())\n\n if ($this.is('a')) e.preventDefault()\n\n $target.one('show.bs.modal', function (showEvent) {\n if (showEvent.isDefaultPrevented()) return // only register focus restorer if modal will actually get shown\n $target.one('hidden.bs.modal', function () {\n $this.is(':visible') && $this.trigger('focus')\n })\n })\n Plugin.call($target, option, this)\n })\n\n}(jQuery);\n\n/* ========================================================================\n * Bootstrap: tooltip.js v3.3.7\n * http://getbootstrap.com/javascript/#tooltip\n * Inspired by the original jQuery.tipsy by Jason Frame\n * ========================================================================\n * Copyright 2011-2016 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n\n+function ($) {\n 'use strict';\n\n // TOOLTIP PUBLIC CLASS DEFINITION\n // ===============================\n\n var Tooltip = function (element, options) {\n this.type = null\n this.options = null\n this.enabled = null\n this.timeout = null\n this.hoverState = null\n this.$element = null\n this.inState = null\n\n this.init('tooltip', element, options)\n }\n\n Tooltip.VERSION = '3.3.7'\n\n Tooltip.TRANSITION_DURATION = 150\n\n Tooltip.DEFAULTS = {\n animation: true,\n placement: 'top',\n selector: false,\n template: '<div class=\"tooltip\" role=\"tooltip\"><div class=\"tooltip-arrow\"></div><div class=\"tooltip-inner\"></div></div>',\n trigger: 'hover focus',\n title: '',\n delay: 0,\n html: false,\n container: false,\n viewport: {\n selector: 'body',\n padding: 0\n }\n }\n\n Tooltip.prototype.init = function (type, element, options) {\n this.enabled = true\n this.type = type\n this.$element = $(element)\n this.options = this.getOptions(options)\n this.$viewport = this.options.viewport && $($.isFunction(this.options.viewport) ? this.options.viewport.call(this, this.$element) : (this.options.viewport.selector || this.options.viewport))\n this.inState = { click: false, hover: false, focus: false }\n\n if (this.$element[0] instanceof document.constructor && !this.options.selector) {\n throw new Error('`selector` option must be specified when initializing ' + this.type + ' on the window.document object!')\n }\n\n var triggers = this.options.trigger.split(' ')\n\n for (var i = triggers.length; i--;) {\n var trigger = triggers[i]\n\n if (trigger == 'click') {\n this.$element.on('click.' + this.type, this.options.selector, $.proxy(this.toggle, this))\n } else if (trigger != 'manual') {\n var eventIn = trigger == 'hover' ? 'mouseenter' : 'focusin'\n var eventOut = trigger == 'hover' ? 'mouseleave' : 'focusout'\n\n this.$element.on(eventIn + '.' + this.type, this.options.selector, $.proxy(this.enter, this))\n this.$element.on(eventOut + '.' + this.type, this.options.selector, $.proxy(this.leave, this))\n }\n }\n\n this.options.selector ?\n (this._options = $.extend({}, this.options, { trigger: 'manual', selector: '' })) :\n this.fixTitle()\n }\n\n Tooltip.prototype.getDefaults = function () {\n return Tooltip.DEFAULTS\n }\n\n Tooltip.prototype.getOptions = function (options) {\n options = $.extend({}, this.getDefaults(), this.$element.data(), options)\n\n if (options.delay && typeof options.delay == 'number') {\n options.delay = {\n show: options.delay,\n hide: options.delay\n }\n }\n\n return options\n }\n\n Tooltip.prototype.getDelegateOptions = function () {\n var options = {}\n var defaults = this.getDefaults()\n\n this._options && $.each(this._options, function (key, value) {\n if (defaults[key] != value) options[key] = value\n })\n\n return options\n }\n\n Tooltip.prototype.enter = function (obj) {\n var self = obj instanceof this.constructor ?\n obj : $(obj.currentTarget).data('bs.' + this.type)\n\n if (!self) {\n self = new this.constructor(obj.currentTarget, this.getDelegateOptions())\n $(obj.currentTarget).data('bs.' + this.type, self)\n }\n\n if (obj instanceof $.Event) {\n self.inState[obj.type == 'focusin' ? 'focus' : 'hover'] = true\n }\n\n if (self.tip().hasClass('in') || self.hoverState == 'in') {\n self.hoverState = 'in'\n return\n }\n\n clearTimeout(self.timeout)\n\n self.hoverState = 'in'\n\n if (!self.options.delay || !self.options.delay.show) return self.show()\n\n self.timeout = setTimeout(function () {\n if (self.hoverState == 'in') self.show()\n }, self.options.delay.show)\n }\n\n Tooltip.prototype.isInStateTrue = function () {\n for (var key in this.inState) {\n if (this.inState[key]) return true\n }\n\n return false\n }\n\n Tooltip.prototype.leave = function (obj) {\n var self = obj instanceof this.constructor ?\n obj : $(obj.currentTarget).data('bs.' + this.type)\n\n if (!self) {\n self = new this.constructor(obj.currentTarget, this.getDelegateOptions())\n $(obj.currentTarget).data('bs.' + this.type, self)\n }\n\n if (obj instanceof $.Event) {\n self.inState[obj.type == 'focusout' ? 'focus' : 'hover'] = false\n }\n\n if (self.isInStateTrue()) return\n\n clearTimeout(self.timeout)\n\n self.hoverState = 'out'\n\n if (!self.options.delay || !self.options.delay.hide) return self.hide()\n\n self.timeout = setTimeout(function () {\n if (self.hoverState == 'out') self.hide()\n }, self.options.delay.hide)\n }\n\n Tooltip.prototype.show = function () {\n var e = $.Event('show.bs.' + this.type)\n\n if (this.hasContent() && this.enabled) {\n this.$element.trigger(e)\n\n var inDom = $.contains(this.$element[0].ownerDocument.documentElement, this.$element[0])\n if (e.isDefaultPrevented() || !inDom) return\n var that = this\n\n var $tip = this.tip()\n\n var tipId = this.getUID(this.type)\n\n this.setContent()\n $tip.attr('id', tipId)\n this.$element.attr('aria-describedby', tipId)\n\n if (this.options.animation) $tip.addClass('fade')\n\n var placement = typeof this.options.placement == 'function' ?\n this.options.placement.call(this, $tip[0], this.$element[0]) :\n this.options.placement\n\n var autoToken = /\\s?auto?\\s?/i\n var autoPlace = autoToken.test(placement)\n if (autoPlace) placement = placement.replace(autoToken, '') || 'top'\n\n $tip\n .detach()\n .css({ top: 0, left: 0, display: 'block' })\n .addClass(placement)\n .data('bs.' + this.type, this)\n\n this.options.container ? $tip.appendTo(this.options.container) : $tip.insertAfter(this.$element)\n this.$element.trigger('inserted.bs.' + this.type)\n\n var pos = this.getPosition()\n var actualWidth = $tip[0].offsetWidth\n var actualHeight = $tip[0].offsetHeight\n\n if (autoPlace) {\n var orgPlacement = placement\n var viewportDim = this.getPosition(this.$viewport)\n\n placement = placement == 'bottom' && pos.bottom + actualHeight > viewportDim.bottom ? 'top' :\n placement == 'top' && pos.top - actualHeight < viewportDim.top ? 'bottom' :\n placement == 'right' && pos.right + actualWidth > viewportDim.width ? 'left' :\n placement == 'left' && pos.left - actualWidth < viewportDim.left ? 'right' :\n placement\n\n $tip\n .removeClass(orgPlacement)\n .addClass(placement)\n }\n\n var calculatedOffset = this.getCalculatedOffset(placement, pos, actualWidth, actualHeight)\n\n this.applyPlacement(calculatedOffset, placement)\n\n var complete = function () {\n var prevHoverState = that.hoverState\n that.$element.trigger('shown.bs.' + that.type)\n that.hoverState = null\n\n if (prevHoverState == 'out') that.leave(that)\n }\n\n $.support.transition && this.$tip.hasClass('fade') ?\n $tip\n .one('bsTransitionEnd', complete)\n .emulateTransitionEnd(Tooltip.TRANSITION_DURATION) :\n complete()\n }\n }\n\n Tooltip.prototype.applyPlacement = function (offset, placement) {\n var $tip = this.tip()\n var width = $tip[0].offsetWidth\n var height = $tip[0].offsetHeight\n\n // manually read margins because getBoundingClientRect includes difference\n var marginTop = parseInt($tip.css('margin-top'), 10)\n var marginLeft = parseInt($tip.css('margin-left'), 10)\n\n // we must check for NaN for ie 8/9\n if (isNaN(marginTop)) marginTop = 0\n if (isNaN(marginLeft)) marginLeft = 0\n\n offset.top += marginTop\n offset.left += marginLeft\n\n // $.fn.offset doesn't round pixel values\n // so we use setOffset directly with our own function B-0\n $.offset.setOffset($tip[0], $.extend({\n using: function (props) {\n $tip.css({\n top: Math.round(props.top),\n left: Math.round(props.left)\n })\n }\n }, offset), 0)\n\n $tip.addClass('in')\n\n // check to see if placing tip in new offset caused the tip to resize itself\n var actualWidth = $tip[0].offsetWidth\n var actualHeight = $tip[0].offsetHeight\n\n if (placement == 'top' && actualHeight != height) {\n offset.top = offset.top + height - actualHeight\n }\n\n var delta = this.getViewportAdjustedDelta(placement, offset, actualWidth, actualHeight)\n\n if (delta.left) offset.left += delta.left\n else offset.top += delta.top\n\n var isVertical = /top|bottom/.test(placement)\n var arrowDelta = isVertical ? delta.left * 2 - width + actualWidth : delta.top * 2 - height + actualHeight\n var arrowOffsetPosition = isVertical ? 'offsetWidth' : 'offsetHeight'\n\n $tip.offset(offset)\n this.replaceArrow(arrowDelta, $tip[0][arrowOffsetPosition], isVertical)\n }\n\n Tooltip.prototype.replaceArrow = function (delta, dimension, isVertical) {\n this.arrow()\n .css(isVertical ? 'left' : 'top', 50 * (1 - delta / dimension) + '%')\n .css(isVertical ? 'top' : 'left', '')\n }\n\n Tooltip.prototype.setContent = function () {\n var $tip = this.tip()\n var title = this.getTitle()\n\n $tip.find('.tooltip-inner')[this.options.html ? 'html' : 'text'](title)\n $tip.removeClass('fade in top bottom left right')\n }\n\n Tooltip.prototype.hide = function (callback) {\n var that = this\n var $tip = $(this.$tip)\n var e = $.Event('hide.bs.' + this.type)\n\n function complete() {\n if (that.hoverState != 'in') $tip.detach()\n if (that.$element) { // TODO: Check whether guarding this code with this `if` is really necessary.\n that.$element\n .removeAttr('aria-describedby')\n .trigger('hidden.bs.' + that.type)\n }\n callback && callback()\n }\n\n this.$element.trigger(e)\n\n if (e.isDefaultPrevented()) return\n\n $tip.removeClass('in')\n\n $.support.transition && $tip.hasClass('fade') ?\n $tip\n .one('bsTransitionEnd', complete)\n .emulateTransitionEnd(Tooltip.TRANSITION_DURATION) :\n complete()\n\n this.hoverState = null\n\n return this\n }\n\n Tooltip.prototype.fixTitle = function () {\n var $e = this.$element\n if ($e.attr('title') || typeof $e.attr('data-original-title') != 'string') {\n $e.attr('data-original-title', $e.attr('title') || '').attr('title', '')\n }\n }\n\n Tooltip.prototype.hasContent = function () {\n return this.getTitle()\n }\n\n Tooltip.prototype.getPosition = function ($element) {\n $element = $element || this.$element\n\n var el = $element[0]\n var isBody = el.tagName == 'BODY'\n\n var elRect = el.getBoundingClientRect()\n if (elRect.width == null) {\n // width and height are missing in IE8, so compute them manually; see https://github.com/twbs/bootstrap/issues/14093\n elRect = $.extend({}, elRect, { width: elRect.right - elRect.left, height: elRect.bottom - elRect.top })\n }\n var isSvg = window.SVGElement && el instanceof window.SVGElement\n // Avoid using $.offset() on SVGs since it gives incorrect results in jQuery 3.\n // See https://github.com/twbs/bootstrap/issues/20280\n var elOffset = isBody ? { top: 0, left: 0 } : (isSvg ? null : $element.offset())\n var scroll = { scroll: isBody ? document.documentElement.scrollTop || document.body.scrollTop : $element.scrollTop() }\n var outerDims = isBody ? { width: $(window).width(), height: $(window).height() } : null\n\n return $.extend({}, elRect, scroll, outerDims, elOffset)\n }\n\n Tooltip.prototype.getCalculatedOffset = function (placement, pos, actualWidth, actualHeight) {\n return placement == 'bottom' ? { top: pos.top + pos.height, left: pos.left + pos.width / 2 - actualWidth / 2 } :\n placement == 'top' ? { top: pos.top - actualHeight, left: pos.left + pos.width / 2 - actualWidth / 2 } :\n placement == 'left' ? { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left - actualWidth } :\n /* placement == 'right' */ { top: pos.top + pos.height / 2 - actualHeight / 2, left: pos.left + pos.width }\n\n }\n\n Tooltip.prototype.getViewportAdjustedDelta = function (placement, pos, actualWidth, actualHeight) {\n var delta = { top: 0, left: 0 }\n if (!this.$viewport) return delta\n\n var viewportPadding = this.options.viewport && this.options.viewport.padding || 0\n var viewportDimensions = this.getPosition(this.$viewport)\n\n if (/right|left/.test(placement)) {\n var topEdgeOffset = pos.top - viewportPadding - viewportDimensions.scroll\n var bottomEdgeOffset = pos.top + viewportPadding - viewportDimensions.scroll + actualHeight\n if (topEdgeOffset < viewportDimensions.top) { // top overflow\n delta.top = viewportDimensions.top - topEdgeOffset\n } else if (bottomEdgeOffset > viewportDimensions.top + viewportDimensions.height) { // bottom overflow\n delta.top = viewportDimensions.top + viewportDimensions.height - bottomEdgeOffset\n }\n } else {\n var leftEdgeOffset = pos.left - viewportPadding\n var rightEdgeOffset = pos.left + viewportPadding + actualWidth\n if (leftEdgeOffset < viewportDimensions.left) { // left overflow\n delta.left = viewportDimensions.left - leftEdgeOffset\n } else if (rightEdgeOffset > viewportDimensions.right) { // right overflow\n delta.left = viewportDimensions.left + viewportDimensions.width - rightEdgeOffset\n }\n }\n\n return delta\n }\n\n Tooltip.prototype.getTitle = function () {\n var title\n var $e = this.$element\n var o = this.options\n\n title = $e.attr('data-original-title')\n || (typeof o.title == 'function' ? o.title.call($e[0]) : o.title)\n\n return title\n }\n\n Tooltip.prototype.getUID = function (prefix) {\n do prefix += ~~(Math.random() * 1000000)\n while (document.getElementById(prefix))\n return prefix\n }\n\n Tooltip.prototype.tip = function () {\n if (!this.$tip) {\n this.$tip = $(this.options.template)\n if (this.$tip.length != 1) {\n throw new Error(this.type + ' `template` option must consist of exactly 1 top-level element!')\n }\n }\n return this.$tip\n }\n\n Tooltip.prototype.arrow = function () {\n return (this.$arrow = this.$arrow || this.tip().find('.tooltip-arrow'))\n }\n\n Tooltip.prototype.enable = function () {\n this.enabled = true\n }\n\n Tooltip.prototype.disable = function () {\n this.enabled = false\n }\n\n Tooltip.prototype.toggleEnabled = function () {\n this.enabled = !this.enabled\n }\n\n Tooltip.prototype.toggle = function (e) {\n var self = this\n if (e) {\n self = $(e.currentTarget).data('bs.' + this.type)\n if (!self) {\n self = new this.constructor(e.currentTarget, this.getDelegateOptions())\n $(e.currentTarget).data('bs.' + this.type, self)\n }\n }\n\n if (e) {\n self.inState.click = !self.inState.click\n if (self.isInStateTrue()) self.enter(self)\n else self.leave(self)\n } else {\n self.tip().hasClass('in') ? self.leave(self) : self.enter(self)\n }\n }\n\n Tooltip.prototype.destroy = function () {\n var that = this\n clearTimeout(this.timeout)\n this.hide(function () {\n that.$element.off('.' + that.type).removeData('bs.' + that.type)\n if (that.$tip) {\n that.$tip.detach()\n }\n that.$tip = null\n that.$arrow = null\n that.$viewport = null\n that.$element = null\n })\n }\n\n\n // TOOLTIP PLUGIN DEFINITION\n // =========================\n\n function Plugin(option) {\n return this.each(function () {\n var $this = $(this)\n var data = $this.data('bs.tooltip')\n var options = typeof option == 'object' && option\n\n if (!data && /destroy|hide/.test(option)) return\n if (!data) $this.data('bs.tooltip', (data = new Tooltip(this, options)))\n if (typeof option == 'string') data[option]()\n })\n }\n\n var old = $.fn.tooltip\n\n $.fn.tooltip = Plugin\n $.fn.tooltip.Constructor = Tooltip\n\n\n // TOOLTIP NO CONFLICT\n // ===================\n\n $.fn.tooltip.noConflict = function () {\n $.fn.tooltip = old\n return this\n }\n\n}(jQuery);\n\n/* ========================================================================\n * Bootstrap: popover.js v3.3.7\n * http://getbootstrap.com/javascript/#popovers\n * ========================================================================\n * Copyright 2011-2016 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n\n+function ($) {\n 'use strict';\n\n // POPOVER PUBLIC CLASS DEFINITION\n // ===============================\n\n var Popover = function (element, options) {\n this.init('popover', element, options)\n }\n\n if (!$.fn.tooltip) throw new Error('Popover requires tooltip.js')\n\n Popover.VERSION = '3.3.7'\n\n Popover.DEFAULTS = $.extend({}, $.fn.tooltip.Constructor.DEFAULTS, {\n placement: 'right',\n trigger: 'click',\n content: '',\n template: '<div class=\"popover\" role=\"tooltip\"><div class=\"arrow\"></div><h3 class=\"popover-title\"></h3><div class=\"popover-content\"></div></div>'\n })\n\n\n // NOTE: POPOVER EXTENDS tooltip.js\n // ================================\n\n Popover.prototype = $.extend({}, $.fn.tooltip.Constructor.prototype)\n\n Popover.prototype.constructor = Popover\n\n Popover.prototype.getDefaults = function () {\n return Popover.DEFAULTS\n }\n\n Popover.prototype.setContent = function () {\n var $tip = this.tip()\n var title = this.getTitle()\n var content = this.getContent()\n\n $tip.find('.popover-title')[this.options.html ? 'html' : 'text'](title)\n $tip.find('.popover-content').children().detach().end()[ // we use append for html objects to maintain js events\n this.options.html ? (typeof content == 'string' ? 'html' : 'append') : 'text'\n ](content)\n\n $tip.removeClass('fade top bottom left right in')\n\n // IE8 doesn't accept hiding via the `:empty` pseudo selector, we have to do\n // this manually by checking the contents.\n if (!$tip.find('.popover-title').html()) $tip.find('.popover-title').hide()\n }\n\n Popover.prototype.hasContent = function () {\n return this.getTitle() || this.getContent()\n }\n\n Popover.prototype.getContent = function () {\n var $e = this.$element\n var o = this.options\n\n return $e.attr('data-content')\n || (typeof o.content == 'function' ?\n o.content.call($e[0]) :\n o.content)\n }\n\n Popover.prototype.arrow = function () {\n return (this.$arrow = this.$arrow || this.tip().find('.arrow'))\n }\n\n\n // POPOVER PLUGIN DEFINITION\n // =========================\n\n function Plugin(option) {\n return this.each(function () {\n var $this = $(this)\n var data = $this.data('bs.popover')\n var options = typeof option == 'object' && option\n\n if (!data && /destroy|hide/.test(option)) return\n if (!data) $this.data('bs.popover', (data = new Popover(this, options)))\n if (typeof option == 'string') data[option]()\n })\n }\n\n var old = $.fn.popover\n\n $.fn.popover = Plugin\n $.fn.popover.Constructor = Popover\n\n\n // POPOVER NO CONFLICT\n // ===================\n\n $.fn.popover.noConflict = function () {\n $.fn.popover = old\n return this\n }\n\n}(jQuery);\n\n/* ========================================================================\n * Bootstrap: scrollspy.js v3.3.7\n * http://getbootstrap.com/javascript/#scrollspy\n * ========================================================================\n * Copyright 2011-2016 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n\n+function ($) {\n 'use strict';\n\n // SCROLLSPY CLASS DEFINITION\n // ==========================\n\n function ScrollSpy(element, options) {\n this.$body = $(document.body)\n this.$scrollElement = $(element).is(document.body) ? $(window) : $(element)\n this.options = $.extend({}, ScrollSpy.DEFAULTS, options)\n this.selector = (this.options.target || '') + ' .nav li > a'\n this.offsets = []\n this.targets = []\n this.activeTarget = null\n this.scrollHeight = 0\n\n this.$scrollElement.on('scroll.bs.scrollspy', $.proxy(this.process, this))\n this.refresh()\n this.process()\n }\n\n ScrollSpy.VERSION = '3.3.7'\n\n ScrollSpy.DEFAULTS = {\n offset: 10\n }\n\n ScrollSpy.prototype.getScrollHeight = function () {\n return this.$scrollElement[0].scrollHeight || Math.max(this.$body[0].scrollHeight, document.documentElement.scrollHeight)\n }\n\n ScrollSpy.prototype.refresh = function () {\n var that = this\n var offsetMethod = 'offset'\n var offsetBase = 0\n\n this.offsets = []\n this.targets = []\n this.scrollHeight = this.getScrollHeight()\n\n if (!$.isWindow(this.$scrollElement[0])) {\n offsetMethod = 'position'\n offsetBase = this.$scrollElement.scrollTop()\n }\n\n this.$body\n .find(this.selector)\n .map(function () {\n var $el = $(this)\n var href = $el.data('target') || $el.attr('href')\n var $href = /^#./.test(href) && $(href)\n\n return ($href\n && $href.length\n && $href.is(':visible')\n && [[$href[offsetMethod]().top + offsetBase, href]]) || null\n })\n .sort(function (a, b) { return a[0] - b[0] })\n .each(function () {\n that.offsets.push(this[0])\n that.targets.push(this[1])\n })\n }\n\n ScrollSpy.prototype.process = function () {\n var scrollTop = this.$scrollElement.scrollTop() + this.options.offset\n var scrollHeight = this.getScrollHeight()\n var maxScroll = this.options.offset + scrollHeight - this.$scrollElement.height()\n var offsets = this.offsets\n var targets = this.targets\n var activeTarget = this.activeTarget\n var i\n\n if (this.scrollHeight != scrollHeight) {\n this.refresh()\n }\n\n if (scrollTop >= maxScroll) {\n return activeTarget != (i = targets[targets.length - 1]) && this.activate(i)\n }\n\n if (activeTarget && scrollTop < offsets[0]) {\n this.activeTarget = null\n return this.clear()\n }\n\n for (i = offsets.length; i--;) {\n activeTarget != targets[i]\n && scrollTop >= offsets[i]\n && (offsets[i + 1] === undefined || scrollTop < offsets[i + 1])\n && this.activate(targets[i])\n }\n }\n\n ScrollSpy.prototype.activate = function (target) {\n this.activeTarget = target\n\n this.clear()\n\n var selector = this.selector +\n '[data-target=\"' + target + '\"],' +\n this.selector + '[href=\"' + target + '\"]'\n\n var active = $(selector)\n .parents('li')\n .addClass('active')\n\n if (active.parent('.dropdown-menu').length) {\n active = active\n .closest('li.dropdown')\n .addClass('active')\n }\n\n active.trigger('activate.bs.scrollspy')\n }\n\n ScrollSpy.prototype.clear = function () {\n $(this.selector)\n .parentsUntil(this.options.target, '.active')\n .removeClass('active')\n }\n\n\n // SCROLLSPY PLUGIN DEFINITION\n // ===========================\n\n function Plugin(option) {\n return this.each(function () {\n var $this = $(this)\n var data = $this.data('bs.scrollspy')\n var options = typeof option == 'object' && option\n\n if (!data) $this.data('bs.scrollspy', (data = new ScrollSpy(this, options)))\n if (typeof option == 'string') data[option]()\n })\n }\n\n var old = $.fn.scrollspy\n\n $.fn.scrollspy = Plugin\n $.fn.scrollspy.Constructor = ScrollSpy\n\n\n // SCROLLSPY NO CONFLICT\n // =====================\n\n $.fn.scrollspy.noConflict = function () {\n $.fn.scrollspy = old\n return this\n }\n\n\n // SCROLLSPY DATA-API\n // ==================\n\n $(window).on('load.bs.scrollspy.data-api', function () {\n $('[data-spy=\"scroll\"]').each(function () {\n var $spy = $(this)\n Plugin.call($spy, $spy.data())\n })\n })\n\n}(jQuery);\n\n/* ========================================================================\n * Bootstrap: tab.js v3.3.7\n * http://getbootstrap.com/javascript/#tabs\n * ========================================================================\n * Copyright 2011-2016 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n\n+function ($) {\n 'use strict';\n\n // TAB CLASS DEFINITION\n // ====================\n\n var Tab = function (element) {\n // jscs:disable requireDollarBeforejQueryAssignment\n this.element = $(element)\n // jscs:enable requireDollarBeforejQueryAssignment\n }\n\n Tab.VERSION = '3.3.7'\n\n Tab.TRANSITION_DURATION = 150\n\n Tab.prototype.show = function () {\n var $this = this.element\n var $ul = $this.closest('ul:not(.dropdown-menu)')\n var selector = $this.data('target')\n\n if (!selector) {\n selector = $this.attr('href')\n selector = selector && selector.replace(/.*(?=#[^\\s]*$)/, '') // strip for ie7\n }\n\n if ($this.parent('li').hasClass('active')) return\n\n var $previous = $ul.find('.active:last a')\n var hideEvent = $.Event('hide.bs.tab', {\n relatedTarget: $this[0]\n })\n var showEvent = $.Event('show.bs.tab', {\n relatedTarget: $previous[0]\n })\n\n $previous.trigger(hideEvent)\n $this.trigger(showEvent)\n\n if (showEvent.isDefaultPrevented() || hideEvent.isDefaultPrevented()) return\n\n var $target = $(selector)\n\n this.activate($this.closest('li'), $ul)\n this.activate($target, $target.parent(), function () {\n $previous.trigger({\n type: 'hidden.bs.tab',\n relatedTarget: $this[0]\n })\n $this.trigger({\n type: 'shown.bs.tab',\n relatedTarget: $previous[0]\n })\n })\n }\n\n Tab.prototype.activate = function (element, container, callback) {\n var $active = container.find('> .active')\n var transition = callback\n && $.support.transition\n && ($active.length && $active.hasClass('fade') || !!container.find('> .fade').length)\n\n function next() {\n $active\n .removeClass('active')\n .find('> .dropdown-menu > .active')\n .removeClass('active')\n .end()\n .find('[data-toggle=\"tab\"]')\n .attr('aria-expanded', false)\n\n element\n .addClass('active')\n .find('[data-toggle=\"tab\"]')\n .attr('aria-expanded', true)\n\n if (transition) {\n element[0].offsetWidth // reflow for transition\n element.addClass('in')\n } else {\n element.removeClass('fade')\n }\n\n if (element.parent('.dropdown-menu').length) {\n element\n .closest('li.dropdown')\n .addClass('active')\n .end()\n .find('[data-toggle=\"tab\"]')\n .attr('aria-expanded', true)\n }\n\n callback && callback()\n }\n\n $active.length && transition ?\n $active\n .one('bsTransitionEnd', next)\n .emulateTransitionEnd(Tab.TRANSITION_DURATION) :\n next()\n\n $active.removeClass('in')\n }\n\n\n // TAB PLUGIN DEFINITION\n // =====================\n\n function Plugin(option) {\n return this.each(function () {\n var $this = $(this)\n var data = $this.data('bs.tab')\n\n if (!data) $this.data('bs.tab', (data = new Tab(this)))\n if (typeof option == 'string') data[option]()\n })\n }\n\n var old = $.fn.tab\n\n $.fn.tab = Plugin\n $.fn.tab.Constructor = Tab\n\n\n // TAB NO CONFLICT\n // ===============\n\n $.fn.tab.noConflict = function () {\n $.fn.tab = old\n return this\n }\n\n\n // TAB DATA-API\n // ============\n\n var clickHandler = function (e) {\n e.preventDefault()\n Plugin.call($(this), 'show')\n }\n\n $(document)\n .on('click.bs.tab.data-api', '[data-toggle=\"tab\"]', clickHandler)\n .on('click.bs.tab.data-api', '[data-toggle=\"pill\"]', clickHandler)\n\n}(jQuery);\n\n/* ========================================================================\n * Bootstrap: affix.js v3.3.7\n * http://getbootstrap.com/javascript/#affix\n * ========================================================================\n * Copyright 2011-2016 Twitter, Inc.\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)\n * ======================================================================== */\n\n\n+function ($) {\n 'use strict';\n\n // AFFIX CLASS DEFINITION\n // ======================\n\n var Affix = function (element, options) {\n this.options = $.extend({}, Affix.DEFAULTS, options)\n\n this.$target = $(this.options.target)\n .on('scroll.bs.affix.data-api', $.proxy(this.checkPosition, this))\n .on('click.bs.affix.data-api', $.proxy(this.checkPositionWithEventLoop, this))\n\n this.$element = $(element)\n this.affixed = null\n this.unpin = null\n this.pinnedOffset = null\n\n this.checkPosition()\n }\n\n Affix.VERSION = '3.3.7'\n\n Affix.RESET = 'affix affix-top affix-bottom'\n\n Affix.DEFAULTS = {\n offset: 0,\n target: window\n }\n\n Affix.prototype.getState = function (scrollHeight, height, offsetTop, offsetBottom) {\n var scrollTop = this.$target.scrollTop()\n var position = this.$element.offset()\n var targetHeight = this.$target.height()\n\n if (offsetTop != null && this.affixed == 'top') return scrollTop < offsetTop ? 'top' : false\n\n if (this.affixed == 'bottom') {\n if (offsetTop != null) return (scrollTop + this.unpin <= position.top) ? false : 'bottom'\n return (scrollTop + targetHeight <= scrollHeight - offsetBottom) ? false : 'bottom'\n }\n\n var initializing = this.affixed == null\n var colliderTop = initializing ? scrollTop : position.top\n var colliderHeight = initializing ? targetHeight : height\n\n if (offsetTop != null && scrollTop <= offsetTop) return 'top'\n if (offsetBottom != null && (colliderTop + colliderHeight >= scrollHeight - offsetBottom)) return 'bottom'\n\n return false\n }\n\n Affix.prototype.getPinnedOffset = function () {\n if (this.pinnedOffset) return this.pinnedOffset\n this.$element.removeClass(Affix.RESET).addClass('affix')\n var scrollTop = this.$target.scrollTop()\n var position = this.$element.offset()\n return (this.pinnedOffset = position.top - scrollTop)\n }\n\n Affix.prototype.checkPositionWithEventLoop = function () {\n setTimeout($.proxy(this.checkPosition, this), 1)\n }\n\n Affix.prototype.checkPosition = function () {\n if (!this.$element.is(':visible')) return\n\n var height = this.$element.height()\n var offset = this.options.offset\n var offsetTop = offset.top\n var offsetBottom = offset.bottom\n var scrollHeight = Math.max($(document).height(), $(document.body).height())\n\n if (typeof offset != 'object') offsetBottom = offsetTop = offset\n if (typeof offsetTop == 'function') offsetTop = offset.top(this.$element)\n if (typeof offsetBottom == 'function') offsetBottom = offset.bottom(this.$element)\n\n var affix = this.getState(scrollHeight, height, offsetTop, offsetBottom)\n\n if (this.affixed != affix) {\n if (this.unpin != null) this.$element.css('top', '')\n\n var affixType = 'affix' + (affix ? '-' + affix : '')\n var e = $.Event(affixType + '.bs.affix')\n\n this.$element.trigger(e)\n\n if (e.isDefaultPrevented()) return\n\n this.affixed = affix\n this.unpin = affix == 'bottom' ? this.getPinnedOffset() : null\n\n this.$element\n .removeClass(Affix.RESET)\n .addClass(affixType)\n .trigger(affixType.replace('affix', 'affixed') + '.bs.affix')\n }\n\n if (affix == 'bottom') {\n this.$element.offset({\n top: scrollHeight - height - offsetBottom\n })\n }\n }\n\n\n // AFFIX PLUGIN DEFINITION\n // =======================\n\n function Plugin(option) {\n return this.each(function () {\n var $this = $(this)\n var data = $this.data('bs.affix')\n var options = typeof option == 'object' && option\n\n if (!data) $this.data('bs.affix', (data = new Affix(this, options)))\n if (typeof option == 'string') data[option]()\n })\n }\n\n var old = $.fn.affix\n\n $.fn.affix = Plugin\n $.fn.affix.Constructor = Affix\n\n\n // AFFIX NO CONFLICT\n // =================\n\n $.fn.affix.noConflict = function () {\n $.fn.affix = old\n return this\n }\n\n\n // AFFIX DATA-API\n // ==============\n\n $(window).on('load', function () {\n $('[data-spy=\"affix\"]').each(function () {\n var $spy = $(this)\n var data = $spy.data()\n\n data.offset = data.offset || {}\n\n if (data.offsetBottom != null) data.offset.bottom = data.offsetBottom\n if (data.offsetTop != null) data.offset.top = data.offsetTop\n\n Plugin.call($spy, data)\n })\n })\n\n}(jQuery);\n","require('../../modules/core.regexp.escape');\nmodule.exports = require('../../modules/_core').RegExp.escape;\n","module.exports = function (it) {\n if (typeof it != 'function') throw TypeError(it + ' is not a function!');\n return it;\n};\n","var cof = require('./_cof');\nmodule.exports = function (it, msg) {\n if (typeof it != 'number' && cof(it) != 'Number') throw TypeError(msg);\n return +it;\n};\n","// 22.1.3.31 Array.prototype[@@unscopables]\nvar UNSCOPABLES = require('./_wks')('unscopables');\nvar ArrayProto = Array.prototype;\nif (ArrayProto[UNSCOPABLES] == undefined) require('./_hide')(ArrayProto, UNSCOPABLES, {});\nmodule.exports = function (key) {\n ArrayProto[UNSCOPABLES][key] = true;\n};\n","module.exports = function (it, Constructor, name, forbiddenField) {\n if (!(it instanceof Constructor) || (forbiddenField !== undefined && forbiddenField in it)) {\n throw TypeError(name + ': incorrect invocation!');\n } return it;\n};\n","var isObject = require('./_is-object');\nmodule.exports = function (it) {\n if (!isObject(it)) throw TypeError(it + ' is not an object!');\n return it;\n};\n","// 22.1.3.3 Array.prototype.copyWithin(target, start, end = this.length)\n'use strict';\nvar toObject = require('./_to-object');\nvar toAbsoluteIndex = require('./_to-absolute-index');\nvar toLength = require('./_to-length');\n\nmodule.exports = [].copyWithin || function copyWithin(target /* = 0 */, start /* = 0, end = @length */) {\n var O = toObject(this);\n var len = toLength(O.length);\n var to = toAbsoluteIndex(target, len);\n var from = toAbsoluteIndex(start, len);\n var end = arguments.length > 2 ? arguments[2] : undefined;\n var count = Math.min((end === undefined ? len : toAbsoluteIndex(end, len)) - from, len - to);\n var inc = 1;\n if (from < to && to < from + count) {\n inc = -1;\n from += count - 1;\n to += count - 1;\n }\n while (count-- > 0) {\n if (from in O) O[to] = O[from];\n else delete O[to];\n to += inc;\n from += inc;\n } return O;\n};\n","// 22.1.3.6 Array.prototype.fill(value, start = 0, end = this.length)\n'use strict';\nvar toObject = require('./_to-object');\nvar toAbsoluteIndex = require('./_to-absolute-index');\nvar toLength = require('./_to-length');\nmodule.exports = function fill(value /* , start = 0, end = @length */) {\n var O = toObject(this);\n var length = toLength(O.length);\n var aLen = arguments.length;\n var index = toAbsoluteIndex(aLen > 1 ? arguments[1] : undefined, length);\n var end = aLen > 2 ? arguments[2] : undefined;\n var endPos = end === undefined ? length : toAbsoluteIndex(end, length);\n while (endPos > index) O[index++] = value;\n return O;\n};\n","var forOf = require('./_for-of');\n\nmodule.exports = function (iter, ITERATOR) {\n var result = [];\n forOf(iter, false, result.push, result, ITERATOR);\n return result;\n};\n","// false -> Array#indexOf\n// true -> Array#includes\nvar toIObject = require('./_to-iobject');\nvar toLength = require('./_to-length');\nvar toAbsoluteIndex = require('./_to-absolute-index');\nmodule.exports = function (IS_INCLUDES) {\n return function ($this, el, fromIndex) {\n var O = toIObject($this);\n var length = toLength(O.length);\n var index = toAbsoluteIndex(fromIndex, length);\n var value;\n // Array#includes uses SameValueZero equality algorithm\n // eslint-disable-next-line no-self-compare\n if (IS_INCLUDES && el != el) while (length > index) {\n value = O[index++];\n // eslint-disable-next-line no-self-compare\n if (value != value) return true;\n // Array#indexOf ignores holes, Array#includes - not\n } else for (;length > index; index++) if (IS_INCLUDES || index in O) {\n if (O[index] === el) return IS_INCLUDES || index || 0;\n } return !IS_INCLUDES && -1;\n };\n};\n","// 0 -> Array#forEach\n// 1 -> Array#map\n// 2 -> Array#filter\n// 3 -> Array#some\n// 4 -> Array#every\n// 5 -> Array#find\n// 6 -> Array#findIndex\nvar ctx = require('./_ctx');\nvar IObject = require('./_iobject');\nvar toObject = require('./_to-object');\nvar toLength = require('./_to-length');\nvar asc = require('./_array-species-create');\nmodule.exports = function (TYPE, $create) {\n var IS_MAP = TYPE == 1;\n var IS_FILTER = TYPE == 2;\n var IS_SOME = TYPE == 3;\n var IS_EVERY = TYPE == 4;\n var IS_FIND_INDEX = TYPE == 6;\n var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;\n var create = $create || asc;\n return function ($this, callbackfn, that) {\n var O = toObject($this);\n var self = IObject(O);\n var f = ctx(callbackfn, that, 3);\n var length = toLength(self.length);\n var index = 0;\n var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;\n var val, res;\n for (;length > index; index++) if (NO_HOLES || index in self) {\n val = self[index];\n res = f(val, index, O);\n if (TYPE) {\n if (IS_MAP) result[index] = res; // map\n else if (res) switch (TYPE) {\n case 3: return true; // some\n case 5: return val; // find\n case 6: return index; // findIndex\n case 2: result.push(val); // filter\n } else if (IS_EVERY) return false; // every\n }\n }\n return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;\n };\n};\n","var aFunction = require('./_a-function');\nvar toObject = require('./_to-object');\nvar IObject = require('./_iobject');\nvar toLength = require('./_to-length');\n\nmodule.exports = function (that, callbackfn, aLen, memo, isRight) {\n aFunction(callbackfn);\n var O = toObject(that);\n var self = IObject(O);\n var length = toLength(O.length);\n var index = isRight ? length - 1 : 0;\n var i = isRight ? -1 : 1;\n if (aLen < 2) for (;;) {\n if (index in self) {\n memo = self[index];\n index += i;\n break;\n }\n index += i;\n if (isRight ? index < 0 : length <= index) {\n throw TypeError('Reduce of empty array with no initial value');\n }\n }\n for (;isRight ? index >= 0 : length > index; index += i) if (index in self) {\n memo = callbackfn(memo, self[index], index, O);\n }\n return memo;\n};\n","var isObject = require('./_is-object');\nvar isArray = require('./_is-array');\nvar SPECIES = require('./_wks')('species');\n\nmodule.exports = function (original) {\n var C;\n if (isArray(original)) {\n C = original.constructor;\n // cross-realm fallback\n if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;\n if (isObject(C)) {\n C = C[SPECIES];\n if (C === null) C = undefined;\n }\n } return C === undefined ? Array : C;\n};\n","// 9.4.2.3 ArraySpeciesCreate(originalArray, length)\nvar speciesConstructor = require('./_array-species-constructor');\n\nmodule.exports = function (original, length) {\n return new (speciesConstructor(original))(length);\n};\n","'use strict';\nvar aFunction = require('./_a-function');\nvar isObject = require('./_is-object');\nvar invoke = require('./_invoke');\nvar arraySlice = [].slice;\nvar factories = {};\n\nvar construct = function (F, len, args) {\n if (!(len in factories)) {\n for (var n = [], i = 0; i < len; i++) n[i] = 'a[' + i + ']';\n // eslint-disable-next-line no-new-func\n factories[len] = Function('F,a', 'return new F(' + n.join(',') + ')');\n } return factories[len](F, args);\n};\n\nmodule.exports = Function.bind || function bind(that /* , ...args */) {\n var fn = aFunction(this);\n var partArgs = arraySlice.call(arguments, 1);\n var bound = function (/* args... */) {\n var args = partArgs.concat(arraySlice.call(arguments));\n return this instanceof bound ? construct(fn, args.length, args) : invoke(fn, args, that);\n };\n if (isObject(fn.prototype)) bound.prototype = fn.prototype;\n return bound;\n};\n","// getting tag from 19.1.3.6 Object.prototype.toString()\nvar cof = require('./_cof');\nvar TAG = require('./_wks')('toStringTag');\n// ES3 wrong here\nvar ARG = cof(function () { return arguments; }()) == 'Arguments';\n\n// fallback for IE11 Script Access Denied error\nvar tryGet = function (it, key) {\n try {\n return it[key];\n } catch (e) { /* empty */ }\n};\n\nmodule.exports = function (it) {\n var O, T, B;\n return it === undefined ? 'Undefined' : it === null ? 'Null'\n // @@toStringTag case\n : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T\n // builtinTag case\n : ARG ? cof(O)\n // ES3 arguments fallback\n : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;\n};\n","var toString = {}.toString;\n\nmodule.exports = function (it) {\n return toString.call(it).slice(8, -1);\n};\n","'use strict';\nvar dP = require('./_object-dp').f;\nvar create = require('./_object-create');\nvar redefineAll = require('./_redefine-all');\nvar ctx = require('./_ctx');\nvar anInstance = require('./_an-instance');\nvar forOf = require('./_for-of');\nvar $iterDefine = require('./_iter-define');\nvar step = require('./_iter-step');\nvar setSpecies = require('./_set-species');\nvar DESCRIPTORS = require('./_descriptors');\nvar fastKey = require('./_meta').fastKey;\nvar validate = require('./_validate-collection');\nvar SIZE = DESCRIPTORS ? '_s' : 'size';\n\nvar getEntry = function (that, key) {\n // fast case\n var index = fastKey(key);\n var entry;\n if (index !== 'F') return that._i[index];\n // frozen object case\n for (entry = that._f; entry; entry = entry.n) {\n if (entry.k == key) return entry;\n }\n};\n\nmodule.exports = {\n getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {\n var C = wrapper(function (that, iterable) {\n anInstance(that, C, NAME, '_i');\n that._t = NAME; // collection type\n that._i = create(null); // index\n that._f = undefined; // first entry\n that._l = undefined; // last entry\n that[SIZE] = 0; // size\n if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);\n });\n redefineAll(C.prototype, {\n // 23.1.3.1 Map.prototype.clear()\n // 23.2.3.2 Set.prototype.clear()\n clear: function clear() {\n for (var that = validate(this, NAME), data = that._i, entry = that._f; entry; entry = entry.n) {\n entry.r = true;\n if (entry.p) entry.p = entry.p.n = undefined;\n delete data[entry.i];\n }\n that._f = that._l = undefined;\n that[SIZE] = 0;\n },\n // 23.1.3.3 Map.prototype.delete(key)\n // 23.2.3.4 Set.prototype.delete(value)\n 'delete': function (key) {\n var that = validate(this, NAME);\n var entry = getEntry(that, key);\n if (entry) {\n var next = entry.n;\n var prev = entry.p;\n delete that._i[entry.i];\n entry.r = true;\n if (prev) prev.n = next;\n if (next) next.p = prev;\n if (that._f == entry) that._f = next;\n if (that._l == entry) that._l = prev;\n that[SIZE]--;\n } return !!entry;\n },\n // 23.2.3.6 Set.prototype.forEach(callbackfn, thisArg = undefined)\n // 23.1.3.5 Map.prototype.forEach(callbackfn, thisArg = undefined)\n forEach: function forEach(callbackfn /* , that = undefined */) {\n validate(this, NAME);\n var f = ctx(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);\n var entry;\n while (entry = entry ? entry.n : this._f) {\n f(entry.v, entry.k, this);\n // revert to the last existing entry\n while (entry && entry.r) entry = entry.p;\n }\n },\n // 23.1.3.7 Map.prototype.has(key)\n // 23.2.3.7 Set.prototype.has(value)\n has: function has(key) {\n return !!getEntry(validate(this, NAME), key);\n }\n });\n if (DESCRIPTORS) dP(C.prototype, 'size', {\n get: function () {\n return validate(this, NAME)[SIZE];\n }\n });\n return C;\n },\n def: function (that, key, value) {\n var entry = getEntry(that, key);\n var prev, index;\n // change existing entry\n if (entry) {\n entry.v = value;\n // create new entry\n } else {\n that._l = entry = {\n i: index = fastKey(key, true), // <- index\n k: key, // <- key\n v: value, // <- value\n p: prev = that._l, // <- previous entry\n n: undefined, // <- next entry\n r: false // <- removed\n };\n if (!that._f) that._f = entry;\n if (prev) prev.n = entry;\n that[SIZE]++;\n // add to index\n if (index !== 'F') that._i[index] = entry;\n } return that;\n },\n getEntry: getEntry,\n setStrong: function (C, NAME, IS_MAP) {\n // add .keys, .values, .entries, [@@iterator]\n // 23.1.3.4, 23.1.3.8, 23.1.3.11, 23.1.3.12, 23.2.3.5, 23.2.3.8, 23.2.3.10, 23.2.3.11\n $iterDefine(C, NAME, function (iterated, kind) {\n this._t = validate(iterated, NAME); // target\n this._k = kind; // kind\n this._l = undefined; // previous\n }, function () {\n var that = this;\n var kind = that._k;\n var entry = that._l;\n // revert to the last existing entry\n while (entry && entry.r) entry = entry.p;\n // get next entry\n if (!that._t || !(that._l = entry = entry ? entry.n : that._t._f)) {\n // or finish the iteration\n that._t = undefined;\n return step(1);\n }\n // return step by kind\n if (kind == 'keys') return step(0, entry.k);\n if (kind == 'values') return step(0, entry.v);\n return step(0, [entry.k, entry.v]);\n }, IS_MAP ? 'entries' : 'values', !IS_MAP, true);\n\n // add [@@species], 23.1.2.2, 23.2.2.2\n setSpecies(NAME);\n }\n};\n","// https://github.com/DavidBruant/Map-Set.prototype.toJSON\nvar classof = require('./_classof');\nvar from = require('./_array-from-iterable');\nmodule.exports = function (NAME) {\n return function toJSON() {\n if (classof(this) != NAME) throw TypeError(NAME + \"#toJSON isn't generic\");\n return from(this);\n };\n};\n","'use strict';\nvar redefineAll = require('./_redefine-all');\nvar getWeak = require('./_meta').getWeak;\nvar anObject = require('./_an-object');\nvar isObject = require('./_is-object');\nvar anInstance = require('./_an-instance');\nvar forOf = require('./_for-of');\nvar createArrayMethod = require('./_array-methods');\nvar $has = require('./_has');\nvar validate = require('./_validate-collection');\nvar arrayFind = createArrayMethod(5);\nvar arrayFindIndex = createArrayMethod(6);\nvar id = 0;\n\n// fallback for uncaught frozen keys\nvar uncaughtFrozenStore = function (that) {\n return that._l || (that._l = new UncaughtFrozenStore());\n};\nvar UncaughtFrozenStore = function () {\n this.a = [];\n};\nvar findUncaughtFrozen = function (store, key) {\n return arrayFind(store.a, function (it) {\n return it[0] === key;\n });\n};\nUncaughtFrozenStore.prototype = {\n get: function (key) {\n var entry = findUncaughtFrozen(this, key);\n if (entry) return entry[1];\n },\n has: function (key) {\n return !!findUncaughtFrozen(this, key);\n },\n set: function (key, value) {\n var entry = findUncaughtFrozen(this, key);\n if (entry) entry[1] = value;\n else this.a.push([key, value]);\n },\n 'delete': function (key) {\n var index = arrayFindIndex(this.a, function (it) {\n return it[0] === key;\n });\n if (~index) this.a.splice(index, 1);\n return !!~index;\n }\n};\n\nmodule.exports = {\n getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {\n var C = wrapper(function (that, iterable) {\n anInstance(that, C, NAME, '_i');\n that._t = NAME; // collection type\n that._i = id++; // collection id\n that._l = undefined; // leak store for uncaught frozen objects\n if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);\n });\n redefineAll(C.prototype, {\n // 23.3.3.2 WeakMap.prototype.delete(key)\n // 23.4.3.3 WeakSet.prototype.delete(value)\n 'delete': function (key) {\n if (!isObject(key)) return false;\n var data = getWeak(key);\n if (data === true) return uncaughtFrozenStore(validate(this, NAME))['delete'](key);\n return data && $has(data, this._i) && delete data[this._i];\n },\n // 23.3.3.4 WeakMap.prototype.has(key)\n // 23.4.3.4 WeakSet.prototype.has(value)\n has: function has(key) {\n if (!isObject(key)) return false;\n var data = getWeak(key);\n if (data === true) return uncaughtFrozenStore(validate(this, NAME)).has(key);\n return data && $has(data, this._i);\n }\n });\n return C;\n },\n def: function (that, key, value) {\n var data = getWeak(anObject(key), true);\n if (data === true) uncaughtFrozenStore(that).set(key, value);\n else data[that._i] = value;\n return that;\n },\n ufstore: uncaughtFrozenStore\n};\n","'use strict';\nvar global = require('./_global');\nvar $export = require('./_export');\nvar redefine = require('./_redefine');\nvar redefineAll = require('./_redefine-all');\nvar meta = require('./_meta');\nvar forOf = require('./_for-of');\nvar anInstance = require('./_an-instance');\nvar isObject = require('./_is-object');\nvar fails = require('./_fails');\nvar $iterDetect = require('./_iter-detect');\nvar setToStringTag = require('./_set-to-string-tag');\nvar inheritIfRequired = require('./_inherit-if-required');\n\nmodule.exports = function (NAME, wrapper, methods, common, IS_MAP, IS_WEAK) {\n var Base = global[NAME];\n var C = Base;\n var ADDER = IS_MAP ? 'set' : 'add';\n var proto = C && C.prototype;\n var O = {};\n var fixMethod = function (KEY) {\n var fn = proto[KEY];\n redefine(proto, KEY,\n KEY == 'delete' ? function (a) {\n return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);\n } : KEY == 'has' ? function has(a) {\n return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);\n } : KEY == 'get' ? function get(a) {\n return IS_WEAK && !isObject(a) ? undefined : fn.call(this, a === 0 ? 0 : a);\n } : KEY == 'add' ? function add(a) { fn.call(this, a === 0 ? 0 : a); return this; }\n : function set(a, b) { fn.call(this, a === 0 ? 0 : a, b); return this; }\n );\n };\n if (typeof C != 'function' || !(IS_WEAK || proto.forEach && !fails(function () {\n new C().entries().next();\n }))) {\n // create collection constructor\n C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);\n redefineAll(C.prototype, methods);\n meta.NEED = true;\n } else {\n var instance = new C();\n // early implementations not supports chaining\n var HASNT_CHAINING = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance;\n // V8 ~ Chromium 40- weak-collections throws on primitives, but should return false\n var THROWS_ON_PRIMITIVES = fails(function () { instance.has(1); });\n // most early implementations doesn't supports iterables, most modern - not close it correctly\n var ACCEPT_ITERABLES = $iterDetect(function (iter) { new C(iter); }); // eslint-disable-line no-new\n // for early implementations -0 and +0 not the same\n var BUGGY_ZERO = !IS_WEAK && fails(function () {\n // V8 ~ Chromium 42- fails only with 5+ elements\n var $instance = new C();\n var index = 5;\n while (index--) $instance[ADDER](index, index);\n return !$instance.has(-0);\n });\n if (!ACCEPT_ITERABLES) {\n C = wrapper(function (target, iterable) {\n anInstance(target, C, NAME);\n var that = inheritIfRequired(new Base(), target, C);\n if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);\n return that;\n });\n C.prototype = proto;\n proto.constructor = C;\n }\n if (THROWS_ON_PRIMITIVES || BUGGY_ZERO) {\n fixMethod('delete');\n fixMethod('has');\n IS_MAP && fixMethod('get');\n }\n if (BUGGY_ZERO || HASNT_CHAINING) fixMethod(ADDER);\n // weak collections should not contains .clear method\n if (IS_WEAK && proto.clear) delete proto.clear;\n }\n\n setToStringTag(C, NAME);\n\n O[NAME] = C;\n $export($export.G + $export.W + $export.F * (C != Base), O);\n\n if (!IS_WEAK) common.setStrong(C, NAME, IS_MAP);\n\n return C;\n};\n","var core = module.exports = { version: '2.5.7' };\nif (typeof __e == 'number') __e = core; // eslint-disable-line no-undef\n","'use strict';\nvar $defineProperty = require('./_object-dp');\nvar createDesc = require('./_property-desc');\n\nmodule.exports = function (object, index, value) {\n if (index in object) $defineProperty.f(object, index, createDesc(0, value));\n else object[index] = value;\n};\n","// optional / simple context binding\nvar aFunction = require('./_a-function');\nmodule.exports = function (fn, that, length) {\n aFunction(fn);\n if (that === undefined) return fn;\n switch (length) {\n case 1: return function (a) {\n return fn.call(that, a);\n };\n case 2: return function (a, b) {\n return fn.call(that, a, b);\n };\n case 3: return function (a, b, c) {\n return fn.call(that, a, b, c);\n };\n }\n return function (/* ...args */) {\n return fn.apply(that, arguments);\n };\n};\n","'use strict';\n// 20.3.4.36 / 15.9.5.43 Date.prototype.toISOString()\nvar fails = require('./_fails');\nvar getTime = Date.prototype.getTime;\nvar $toISOString = Date.prototype.toISOString;\n\nvar lz = function (num) {\n return num > 9 ? num : '0' + num;\n};\n\n// PhantomJS / old WebKit has a broken implementations\nmodule.exports = (fails(function () {\n return $toISOString.call(new Date(-5e13 - 1)) != '0385-07-25T07:06:39.999Z';\n}) || !fails(function () {\n $toISOString.call(new Date(NaN));\n})) ? function toISOString() {\n if (!isFinite(getTime.call(this))) throw RangeError('Invalid time value');\n var d = this;\n var y = d.getUTCFullYear();\n var m = d.getUTCMilliseconds();\n var s = y < 0 ? '-' : y > 9999 ? '+' : '';\n return s + ('00000' + Math.abs(y)).slice(s ? -6 : -4) +\n '-' + lz(d.getUTCMonth() + 1) + '-' + lz(d.getUTCDate()) +\n 'T' + lz(d.getUTCHours()) + ':' + lz(d.getUTCMinutes()) +\n ':' + lz(d.getUTCSeconds()) + '.' + (m > 99 ? m : '0' + lz(m)) + 'Z';\n} : $toISOString;\n","'use strict';\nvar anObject = require('./_an-object');\nvar toPrimitive = require('./_to-primitive');\nvar NUMBER = 'number';\n\nmodule.exports = function (hint) {\n if (hint !== 'string' && hint !== NUMBER && hint !== 'default') throw TypeError('Incorrect hint');\n return toPrimitive(anObject(this), hint != NUMBER);\n};\n","// 7.2.1 RequireObjectCoercible(argument)\nmodule.exports = function (it) {\n if (it == undefined) throw TypeError(\"Can't call method on \" + it);\n return it;\n};\n","// Thank's IE8 for his funny defineProperty\nmodule.exports = !require('./_fails')(function () {\n return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;\n});\n","var isObject = require('./_is-object');\nvar document = require('./_global').document;\n// typeof document.createElement is 'object' in old IE\nvar is = isObject(document) && isObject(document.createElement);\nmodule.exports = function (it) {\n return is ? document.createElement(it) : {};\n};\n","// IE 8- don't enum bug keys\nmodule.exports = (\n 'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'\n).split(',');\n","// all enumerable object keys, includes symbols\nvar getKeys = require('./_object-keys');\nvar gOPS = require('./_object-gops');\nvar pIE = require('./_object-pie');\nmodule.exports = function (it) {\n var result = getKeys(it);\n var getSymbols = gOPS.f;\n if (getSymbols) {\n var symbols = getSymbols(it);\n var isEnum = pIE.f;\n var i = 0;\n var key;\n while (symbols.length > i) if (isEnum.call(it, key = symbols[i++])) result.push(key);\n } return result;\n};\n","var global = require('./_global');\nvar core = require('./_core');\nvar hide = require('./_hide');\nvar redefine = require('./_redefine');\nvar ctx = require('./_ctx');\nvar PROTOTYPE = 'prototype';\n\nvar $export = function (type, name, source) {\n var IS_FORCED = type & $export.F;\n var IS_GLOBAL = type & $export.G;\n var IS_STATIC = type & $export.S;\n var IS_PROTO = type & $export.P;\n var IS_BIND = type & $export.B;\n var target = IS_GLOBAL ? global : IS_STATIC ? global[name] || (global[name] = {}) : (global[name] || {})[PROTOTYPE];\n var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});\n var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});\n var key, own, out, exp;\n if (IS_GLOBAL) source = name;\n for (key in source) {\n // contains in native\n own = !IS_FORCED && target && target[key] !== undefined;\n // export native or passed\n out = (own ? target : source)[key];\n // bind timers to global for call from export context\n exp = IS_BIND && own ? ctx(out, global) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;\n // extend global\n if (target) redefine(target, key, out, type & $export.U);\n // export\n if (exports[key] != out) hide(exports, key, exp);\n if (IS_PROTO && expProto[key] != out) expProto[key] = out;\n }\n};\nglobal.core = core;\n// type bitmap\n$export.F = 1; // forced\n$export.G = 2; // global\n$export.S = 4; // static\n$export.P = 8; // proto\n$export.B = 16; // bind\n$export.W = 32; // wrap\n$export.U = 64; // safe\n$export.R = 128; // real proto method for `library`\nmodule.exports = $export;\n","var MATCH = require('./_wks')('match');\nmodule.exports = function (KEY) {\n var re = /./;\n try {\n '/./'[KEY](re);\n } catch (e) {\n try {\n re[MATCH] = false;\n return !'/./'[KEY](re);\n } catch (f) { /* empty */ }\n } return true;\n};\n","module.exports = function (exec) {\n try {\n return !!exec();\n } catch (e) {\n return true;\n }\n};\n","'use strict';\nvar hide = require('./_hide');\nvar redefine = require('./_redefine');\nvar fails = require('./_fails');\nvar defined = require('./_defined');\nvar wks = require('./_wks');\n\nmodule.exports = function (KEY, length, exec) {\n var SYMBOL = wks(KEY);\n var fns = exec(defined, SYMBOL, ''[KEY]);\n var strfn = fns[0];\n var rxfn = fns[1];\n if (fails(function () {\n var O = {};\n O[SYMBOL] = function () { return 7; };\n return ''[KEY](O) != 7;\n })) {\n redefine(String.prototype, KEY, strfn);\n hide(RegExp.prototype, SYMBOL, length == 2\n // 21.2.5.8 RegExp.prototype[@@replace](string, replaceValue)\n // 21.2.5.11 RegExp.prototype[@@split](string, limit)\n ? function (string, arg) { return rxfn.call(string, this, arg); }\n // 21.2.5.6 RegExp.prototype[@@match](string)\n // 21.2.5.9 RegExp.prototype[@@search](string)\n : function (string) { return rxfn.call(string, this); }\n );\n }\n};\n","'use strict';\n// 21.2.5.3 get RegExp.prototype.flags\nvar anObject = require('./_an-object');\nmodule.exports = function () {\n var that = anObject(this);\n var result = '';\n if (that.global) result += 'g';\n if (that.ignoreCase) result += 'i';\n if (that.multiline) result += 'm';\n if (that.unicode) result += 'u';\n if (that.sticky) result += 'y';\n return result;\n};\n","'use strict';\n// https://tc39.github.io/proposal-flatMap/#sec-FlattenIntoArray\nvar isArray = require('./_is-array');\nvar isObject = require('./_is-object');\nvar toLength = require('./_to-length');\nvar ctx = require('./_ctx');\nvar IS_CONCAT_SPREADABLE = require('./_wks')('isConcatSpreadable');\n\nfunction flattenIntoArray(target, original, source, sourceLen, start, depth, mapper, thisArg) {\n var targetIndex = start;\n var sourceIndex = 0;\n var mapFn = mapper ? ctx(mapper, thisArg, 3) : false;\n var element, spreadable;\n\n while (sourceIndex < sourceLen) {\n if (sourceIndex in source) {\n element = mapFn ? mapFn(source[sourceIndex], sourceIndex, original) : source[sourceIndex];\n\n spreadable = false;\n if (isObject(element)) {\n spreadable = element[IS_CONCAT_SPREADABLE];\n spreadable = spreadable !== undefined ? !!spreadable : isArray(element);\n }\n\n if (spreadable && depth > 0) {\n targetIndex = flattenIntoArray(target, original, element, toLength(element.length), targetIndex, depth - 1) - 1;\n } else {\n if (targetIndex >= 0x1fffffffffffff) throw TypeError();\n target[targetIndex] = element;\n }\n\n targetIndex++;\n }\n sourceIndex++;\n }\n return targetIndex;\n}\n\nmodule.exports = flattenIntoArray;\n","var ctx = require('./_ctx');\nvar call = require('./_iter-call');\nvar isArrayIter = require('./_is-array-iter');\nvar anObject = require('./_an-object');\nvar toLength = require('./_to-length');\nvar getIterFn = require('./core.get-iterator-method');\nvar BREAK = {};\nvar RETURN = {};\nvar exports = module.exports = function (iterable, entries, fn, that, ITERATOR) {\n var iterFn = ITERATOR ? function () { return iterable; } : getIterFn(iterable);\n var f = ctx(fn, that, entries ? 2 : 1);\n var index = 0;\n var length, step, iterator, result;\n if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!');\n // fast case for arrays with default iterator\n if (isArrayIter(iterFn)) for (length = toLength(iterable.length); length > index; index++) {\n result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);\n if (result === BREAK || result === RETURN) return result;\n } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) {\n result = call(iterator, f, step.value, entries);\n if (result === BREAK || result === RETURN) return result;\n }\n};\nexports.BREAK = BREAK;\nexports.RETURN = RETURN;\n","// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028\nvar global = module.exports = typeof window != 'undefined' && window.Math == Math\n ? window : typeof self != 'undefined' && self.Math == Math ? self\n // eslint-disable-next-line no-new-func\n : Function('return this')();\nif (typeof __g == 'number') __g = global; // eslint-disable-line no-undef\n","var hasOwnProperty = {}.hasOwnProperty;\nmodule.exports = function (it, key) {\n return hasOwnProperty.call(it, key);\n};\n","var dP = require('./_object-dp');\nvar createDesc = require('./_property-desc');\nmodule.exports = require('./_descriptors') ? function (object, key, value) {\n return dP.f(object, key, createDesc(1, value));\n} : function (object, key, value) {\n object[key] = value;\n return object;\n};\n","var document = require('./_global').document;\nmodule.exports = document && document.documentElement;\n","module.exports = !require('./_descriptors') && !require('./_fails')(function () {\n return Object.defineProperty(require('./_dom-create')('div'), 'a', { get: function () { return 7; } }).a != 7;\n});\n","var isObject = require('./_is-object');\nvar setPrototypeOf = require('./_set-proto').set;\nmodule.exports = function (that, target, C) {\n var S = target.constructor;\n var P;\n if (S !== C && typeof S == 'function' && (P = S.prototype) !== C.prototype && isObject(P) && setPrototypeOf) {\n setPrototypeOf(that, P);\n } return that;\n};\n","// fast apply, http://jsperf.lnkit.com/fast-apply/5\nmodule.exports = function (fn, args, that) {\n var un = that === undefined;\n switch (args.length) {\n case 0: return un ? fn()\n : fn.call(that);\n case 1: return un ? fn(args[0])\n : fn.call(that, args[0]);\n case 2: return un ? fn(args[0], args[1])\n : fn.call(that, args[0], args[1]);\n case 3: return un ? fn(args[0], args[1], args[2])\n : fn.call(that, args[0], args[1], args[2]);\n case 4: return un ? fn(args[0], args[1], args[2], args[3])\n : fn.call(that, args[0], args[1], args[2], args[3]);\n } return fn.apply(that, args);\n};\n","// fallback for non-array-like ES3 and non-enumerable old V8 strings\nvar cof = require('./_cof');\n// eslint-disable-next-line no-prototype-builtins\nmodule.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {\n return cof(it) == 'String' ? it.split('') : Object(it);\n};\n","// check on default Array iterator\nvar Iterators = require('./_iterators');\nvar ITERATOR = require('./_wks')('iterator');\nvar ArrayProto = Array.prototype;\n\nmodule.exports = function (it) {\n return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);\n};\n","// 7.2.2 IsArray(argument)\nvar cof = require('./_cof');\nmodule.exports = Array.isArray || function isArray(arg) {\n return cof(arg) == 'Array';\n};\n","// 20.1.2.3 Number.isInteger(number)\nvar isObject = require('./_is-object');\nvar floor = Math.floor;\nmodule.exports = function isInteger(it) {\n return !isObject(it) && isFinite(it) && floor(it) === it;\n};\n","module.exports = function (it) {\n return typeof it === 'object' ? it !== null : typeof it === 'function';\n};\n","// 7.2.8 IsRegExp(argument)\nvar isObject = require('./_is-object');\nvar cof = require('./_cof');\nvar MATCH = require('./_wks')('match');\nmodule.exports = function (it) {\n var isRegExp;\n return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : cof(it) == 'RegExp');\n};\n","// call something on iterator step with safe closing on error\nvar anObject = require('./_an-object');\nmodule.exports = function (iterator, fn, value, entries) {\n try {\n return entries ? fn(anObject(value)[0], value[1]) : fn(value);\n // 7.4.6 IteratorClose(iterator, completion)\n } catch (e) {\n var ret = iterator['return'];\n if (ret !== undefined) anObject(ret.call(iterator));\n throw e;\n }\n};\n","'use strict';\nvar create = require('./_object-create');\nvar descriptor = require('./_property-desc');\nvar setToStringTag = require('./_set-to-string-tag');\nvar IteratorPrototype = {};\n\n// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()\nrequire('./_hide')(IteratorPrototype, require('./_wks')('iterator'), function () { return this; });\n\nmodule.exports = function (Constructor, NAME, next) {\n Constructor.prototype = create(IteratorPrototype, { next: descriptor(1, next) });\n setToStringTag(Constructor, NAME + ' Iterator');\n};\n","'use strict';\nvar LIBRARY = require('./_library');\nvar $export = require('./_export');\nvar redefine = require('./_redefine');\nvar hide = require('./_hide');\nvar Iterators = require('./_iterators');\nvar $iterCreate = require('./_iter-create');\nvar setToStringTag = require('./_set-to-string-tag');\nvar getPrototypeOf = require('./_object-gpo');\nvar ITERATOR = require('./_wks')('iterator');\nvar BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`\nvar FF_ITERATOR = '@@iterator';\nvar KEYS = 'keys';\nvar VALUES = 'values';\n\nvar returnThis = function () { return this; };\n\nmodule.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {\n $iterCreate(Constructor, NAME, next);\n var getMethod = function (kind) {\n if (!BUGGY && kind in proto) return proto[kind];\n switch (kind) {\n case KEYS: return function keys() { return new Constructor(this, kind); };\n case VALUES: return function values() { return new Constructor(this, kind); };\n } return function entries() { return new Constructor(this, kind); };\n };\n var TAG = NAME + ' Iterator';\n var DEF_VALUES = DEFAULT == VALUES;\n var VALUES_BUG = false;\n var proto = Base.prototype;\n var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];\n var $default = $native || getMethod(DEFAULT);\n var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;\n var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;\n var methods, key, IteratorPrototype;\n // Fix native\n if ($anyNative) {\n IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));\n if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {\n // Set @@toStringTag to native iterators\n setToStringTag(IteratorPrototype, TAG, true);\n // fix for some old engines\n if (!LIBRARY && typeof IteratorPrototype[ITERATOR] != 'function') hide(IteratorPrototype, ITERATOR, returnThis);\n }\n }\n // fix Array#{values, @@iterator}.name in V8 / FF\n if (DEF_VALUES && $native && $native.name !== VALUES) {\n VALUES_BUG = true;\n $default = function values() { return $native.call(this); };\n }\n // Define iterator\n if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {\n hide(proto, ITERATOR, $default);\n }\n // Plug for library\n Iterators[NAME] = $default;\n Iterators[TAG] = returnThis;\n if (DEFAULT) {\n methods = {\n values: DEF_VALUES ? $default : getMethod(VALUES),\n keys: IS_SET ? $default : getMethod(KEYS),\n entries: $entries\n };\n if (FORCED) for (key in methods) {\n if (!(key in proto)) redefine(proto, key, methods[key]);\n } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);\n }\n return methods;\n};\n","var ITERATOR = require('./_wks')('iterator');\nvar SAFE_CLOSING = false;\n\ntry {\n var riter = [7][ITERATOR]();\n riter['return'] = function () { SAFE_CLOSING = true; };\n // eslint-disable-next-line no-throw-literal\n Array.from(riter, function () { throw 2; });\n} catch (e) { /* empty */ }\n\nmodule.exports = function (exec, skipClosing) {\n if (!skipClosing && !SAFE_CLOSING) return false;\n var safe = false;\n try {\n var arr = [7];\n var iter = arr[ITERATOR]();\n iter.next = function () { return { done: safe = true }; };\n arr[ITERATOR] = function () { return iter; };\n exec(arr);\n } catch (e) { /* empty */ }\n return safe;\n};\n","module.exports = function (done, value) {\n return { value: value, done: !!done };\n};\n","module.exports = {};\n","module.exports = false;\n","// 20.2.2.14 Math.expm1(x)\nvar $expm1 = Math.expm1;\nmodule.exports = (!$expm1\n // Old FF bug\n || $expm1(10) > 22025.465794806719 || $expm1(10) < 22025.4657948067165168\n // Tor Browser bug\n || $expm1(-2e-17) != -2e-17\n) ? function expm1(x) {\n return (x = +x) == 0 ? x : x > -1e-6 && x < 1e-6 ? x + x * x / 2 : Math.exp(x) - 1;\n} : $expm1;\n","// 20.2.2.16 Math.fround(x)\nvar sign = require('./_math-sign');\nvar pow = Math.pow;\nvar EPSILON = pow(2, -52);\nvar EPSILON32 = pow(2, -23);\nvar MAX32 = pow(2, 127) * (2 - EPSILON32);\nvar MIN32 = pow(2, -126);\n\nvar roundTiesToEven = function (n) {\n return n + 1 / EPSILON - 1 / EPSILON;\n};\n\nmodule.exports = Math.fround || function fround(x) {\n var $abs = Math.abs(x);\n var $sign = sign(x);\n var a, result;\n if ($abs < MIN32) return $sign * roundTiesToEven($abs / MIN32 / EPSILON32) * MIN32 * EPSILON32;\n a = (1 + EPSILON32 / EPSILON) * $abs;\n result = a - (a - $abs);\n // eslint-disable-next-line no-self-compare\n if (result > MAX32 || result != result) return $sign * Infinity;\n return $sign * result;\n};\n","// 20.2.2.20 Math.log1p(x)\nmodule.exports = Math.log1p || function log1p(x) {\n return (x = +x) > -1e-8 && x < 1e-8 ? x - x * x / 2 : Math.log(1 + x);\n};\n","// https://rwaldron.github.io/proposal-math-extensions/\nmodule.exports = Math.scale || function scale(x, inLow, inHigh, outLow, outHigh) {\n if (\n arguments.length === 0\n // eslint-disable-next-line no-self-compare\n || x != x\n // eslint-disable-next-line no-self-compare\n || inLow != inLow\n // eslint-disable-next-line no-self-compare\n || inHigh != inHigh\n // eslint-disable-next-line no-self-compare\n || outLow != outLow\n // eslint-disable-next-line no-self-compare\n || outHigh != outHigh\n ) return NaN;\n if (x === Infinity || x === -Infinity) return x;\n return (x - inLow) * (outHigh - outLow) / (inHigh - inLow) + outLow;\n};\n","// 20.2.2.28 Math.sign(x)\nmodule.exports = Math.sign || function sign(x) {\n // eslint-disable-next-line no-self-compare\n return (x = +x) == 0 || x != x ? x : x < 0 ? -1 : 1;\n};\n","var META = require('./_uid')('meta');\nvar isObject = require('./_is-object');\nvar has = require('./_has');\nvar setDesc = require('./_object-dp').f;\nvar id = 0;\nvar isExtensible = Object.isExtensible || function () {\n return true;\n};\nvar FREEZE = !require('./_fails')(function () {\n return isExtensible(Object.preventExtensions({}));\n});\nvar setMeta = function (it) {\n setDesc(it, META, { value: {\n i: 'O' + ++id, // object ID\n w: {} // weak collections IDs\n } });\n};\nvar fastKey = function (it, create) {\n // return primitive with prefix\n if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;\n if (!has(it, META)) {\n // can't set metadata to uncaught frozen object\n if (!isExtensible(it)) return 'F';\n // not necessary to add metadata\n if (!create) return 'E';\n // add missing metadata\n setMeta(it);\n // return object ID\n } return it[META].i;\n};\nvar getWeak = function (it, create) {\n if (!has(it, META)) {\n // can't set metadata to uncaught frozen object\n if (!isExtensible(it)) return true;\n // not necessary to add metadata\n if (!create) return false;\n // add missing metadata\n setMeta(it);\n // return hash weak collections IDs\n } return it[META].w;\n};\n// add metadata on freeze-family methods calling\nvar onFreeze = function (it) {\n if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);\n return it;\n};\nvar meta = module.exports = {\n KEY: META,\n NEED: false,\n fastKey: fastKey,\n getWeak: getWeak,\n onFreeze: onFreeze\n};\n","var Map = require('./es6.map');\nvar $export = require('./_export');\nvar shared = require('./_shared')('metadata');\nvar store = shared.store || (shared.store = new (require('./es6.weak-map'))());\n\nvar getOrCreateMetadataMap = function (target, targetKey, create) {\n var targetMetadata = store.get(target);\n if (!targetMetadata) {\n if (!create) return undefined;\n store.set(target, targetMetadata = new Map());\n }\n var keyMetadata = targetMetadata.get(targetKey);\n if (!keyMetadata) {\n if (!create) return undefined;\n targetMetadata.set(targetKey, keyMetadata = new Map());\n } return keyMetadata;\n};\nvar ordinaryHasOwnMetadata = function (MetadataKey, O, P) {\n var metadataMap = getOrCreateMetadataMap(O, P, false);\n return metadataMap === undefined ? false : metadataMap.has(MetadataKey);\n};\nvar ordinaryGetOwnMetadata = function (MetadataKey, O, P) {\n var metadataMap = getOrCreateMetadataMap(O, P, false);\n return metadataMap === undefined ? undefined : metadataMap.get(MetadataKey);\n};\nvar ordinaryDefineOwnMetadata = function (MetadataKey, MetadataValue, O, P) {\n getOrCreateMetadataMap(O, P, true).set(MetadataKey, MetadataValue);\n};\nvar ordinaryOwnMetadataKeys = function (target, targetKey) {\n var metadataMap = getOrCreateMetadataMap(target, targetKey, false);\n var keys = [];\n if (metadataMap) metadataMap.forEach(function (_, key) { keys.push(key); });\n return keys;\n};\nvar toMetaKey = function (it) {\n return it === undefined || typeof it == 'symbol' ? it : String(it);\n};\nvar exp = function (O) {\n $export($export.S, 'Reflect', O);\n};\n\nmodule.exports = {\n store: store,\n map: getOrCreateMetadataMap,\n has: ordinaryHasOwnMetadata,\n get: ordinaryGetOwnMetadata,\n set: ordinaryDefineOwnMetadata,\n keys: ordinaryOwnMetadataKeys,\n key: toMetaKey,\n exp: exp\n};\n","var global = require('./_global');\nvar macrotask = require('./_task').set;\nvar Observer = global.MutationObserver || global.WebKitMutationObserver;\nvar process = global.process;\nvar Promise = global.Promise;\nvar isNode = require('./_cof')(process) == 'process';\n\nmodule.exports = function () {\n var head, last, notify;\n\n var flush = function () {\n var parent, fn;\n if (isNode && (parent = process.domain)) parent.exit();\n while (head) {\n fn = head.fn;\n head = head.next;\n try {\n fn();\n } catch (e) {\n if (head) notify();\n else last = undefined;\n throw e;\n }\n } last = undefined;\n if (parent) parent.enter();\n };\n\n // Node.js\n if (isNode) {\n notify = function () {\n process.nextTick(flush);\n };\n // browsers with MutationObserver, except iOS Safari - https://github.com/zloirock/core-js/issues/339\n } else if (Observer && !(global.navigator && global.navigator.standalone)) {\n var toggle = true;\n var node = document.createTextNode('');\n new Observer(flush).observe(node, { characterData: true }); // eslint-disable-line no-new\n notify = function () {\n node.data = toggle = !toggle;\n };\n // environments with maybe non-completely correct, but existent Promise\n } else if (Promise && Promise.resolve) {\n // Promise.resolve without an argument throws an error in LG WebOS 2\n var promise = Promise.resolve(undefined);\n notify = function () {\n promise.then(flush);\n };\n // for other environments - macrotask based on:\n // - setImmediate\n // - MessageChannel\n // - window.postMessag\n // - onreadystatechange\n // - setTimeout\n } else {\n notify = function () {\n // strange IE + webpack dev server bug - use .call(global)\n macrotask.call(global, flush);\n };\n }\n\n return function (fn) {\n var task = { fn: fn, next: undefined };\n if (last) last.next = task;\n if (!head) {\n head = task;\n notify();\n } last = task;\n };\n};\n","'use strict';\n// 25.4.1.5 NewPromiseCapability(C)\nvar aFunction = require('./_a-function');\n\nfunction PromiseCapability(C) {\n var resolve, reject;\n this.promise = new C(function ($$resolve, $$reject) {\n if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');\n resolve = $$resolve;\n reject = $$reject;\n });\n this.resolve = aFunction(resolve);\n this.reject = aFunction(reject);\n}\n\nmodule.exports.f = function (C) {\n return new PromiseCapability(C);\n};\n","'use strict';\n// 19.1.2.1 Object.assign(target, source, ...)\nvar getKeys = require('./_object-keys');\nvar gOPS = require('./_object-gops');\nvar pIE = require('./_object-pie');\nvar toObject = require('./_to-object');\nvar IObject = require('./_iobject');\nvar $assign = Object.assign;\n\n// should work with symbols and should have deterministic property order (V8 bug)\nmodule.exports = !$assign || require('./_fails')(function () {\n var A = {};\n var B = {};\n // eslint-disable-next-line no-undef\n var S = Symbol();\n var K = 'abcdefghijklmnopqrst';\n A[S] = 7;\n K.split('').forEach(function (k) { B[k] = k; });\n return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;\n}) ? function assign(target, source) { // eslint-disable-line no-unused-vars\n var T = toObject(target);\n var aLen = arguments.length;\n var index = 1;\n var getSymbols = gOPS.f;\n var isEnum = pIE.f;\n while (aLen > index) {\n var S = IObject(arguments[index++]);\n var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);\n var length = keys.length;\n var j = 0;\n var key;\n while (length > j) if (isEnum.call(S, key = keys[j++])) T[key] = S[key];\n } return T;\n} : $assign;\n","// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])\nvar anObject = require('./_an-object');\nvar dPs = require('./_object-dps');\nvar enumBugKeys = require('./_enum-bug-keys');\nvar IE_PROTO = require('./_shared-key')('IE_PROTO');\nvar Empty = function () { /* empty */ };\nvar PROTOTYPE = 'prototype';\n\n// Create object with fake `null` prototype: use iframe Object with cleared prototype\nvar createDict = function () {\n // Thrash, waste and sodomy: IE GC bug\n var iframe = require('./_dom-create')('iframe');\n var i = enumBugKeys.length;\n var lt = '<';\n var gt = '>';\n var iframeDocument;\n iframe.style.display = 'none';\n require('./_html').appendChild(iframe);\n iframe.src = 'javascript:'; // eslint-disable-line no-script-url\n // createDict = iframe.contentWindow.Object;\n // html.removeChild(iframe);\n iframeDocument = iframe.contentWindow.document;\n iframeDocument.open();\n iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);\n iframeDocument.close();\n createDict = iframeDocument.F;\n while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]];\n return createDict();\n};\n\nmodule.exports = Object.create || function create(O, Properties) {\n var result;\n if (O !== null) {\n Empty[PROTOTYPE] = anObject(O);\n result = new Empty();\n Empty[PROTOTYPE] = null;\n // add \"__proto__\" for Object.getPrototypeOf polyfill\n result[IE_PROTO] = O;\n } else result = createDict();\n return Properties === undefined ? result : dPs(result, Properties);\n};\n","var anObject = require('./_an-object');\nvar IE8_DOM_DEFINE = require('./_ie8-dom-define');\nvar toPrimitive = require('./_to-primitive');\nvar dP = Object.defineProperty;\n\nexports.f = require('./_descriptors') ? Object.defineProperty : function defineProperty(O, P, Attributes) {\n anObject(O);\n P = toPrimitive(P, true);\n anObject(Attributes);\n if (IE8_DOM_DEFINE) try {\n return dP(O, P, Attributes);\n } catch (e) { /* empty */ }\n if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');\n if ('value' in Attributes) O[P] = Attributes.value;\n return O;\n};\n","var dP = require('./_object-dp');\nvar anObject = require('./_an-object');\nvar getKeys = require('./_object-keys');\n\nmodule.exports = require('./_descriptors') ? Object.defineProperties : function defineProperties(O, Properties) {\n anObject(O);\n var keys = getKeys(Properties);\n var length = keys.length;\n var i = 0;\n var P;\n while (length > i) dP.f(O, P = keys[i++], Properties[P]);\n return O;\n};\n","'use strict';\n// Forced replacement prototype accessors methods\nmodule.exports = require('./_library') || !require('./_fails')(function () {\n var K = Math.random();\n // In FF throws only define methods\n // eslint-disable-next-line no-undef, no-useless-call\n __defineSetter__.call(null, K, function () { /* empty */ });\n delete require('./_global')[K];\n});\n","var pIE = require('./_object-pie');\nvar createDesc = require('./_property-desc');\nvar toIObject = require('./_to-iobject');\nvar toPrimitive = require('./_to-primitive');\nvar has = require('./_has');\nvar IE8_DOM_DEFINE = require('./_ie8-dom-define');\nvar gOPD = Object.getOwnPropertyDescriptor;\n\nexports.f = require('./_descriptors') ? gOPD : function getOwnPropertyDescriptor(O, P) {\n O = toIObject(O);\n P = toPrimitive(P, true);\n if (IE8_DOM_DEFINE) try {\n return gOPD(O, P);\n } catch (e) { /* empty */ }\n if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);\n};\n","// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window\nvar toIObject = require('./_to-iobject');\nvar gOPN = require('./_object-gopn').f;\nvar toString = {}.toString;\n\nvar windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames\n ? Object.getOwnPropertyNames(window) : [];\n\nvar getWindowNames = function (it) {\n try {\n return gOPN(it);\n } catch (e) {\n return windowNames.slice();\n }\n};\n\nmodule.exports.f = function getOwnPropertyNames(it) {\n return windowNames && toString.call(it) == '[object Window]' ? getWindowNames(it) : gOPN(toIObject(it));\n};\n","// 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)\nvar $keys = require('./_object-keys-internal');\nvar hiddenKeys = require('./_enum-bug-keys').concat('length', 'prototype');\n\nexports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {\n return $keys(O, hiddenKeys);\n};\n","exports.f = Object.getOwnPropertySymbols;\n","// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)\nvar has = require('./_has');\nvar toObject = require('./_to-object');\nvar IE_PROTO = require('./_shared-key')('IE_PROTO');\nvar ObjectProto = Object.prototype;\n\nmodule.exports = Object.getPrototypeOf || function (O) {\n O = toObject(O);\n if (has(O, IE_PROTO)) return O[IE_PROTO];\n if (typeof O.constructor == 'function' && O instanceof O.constructor) {\n return O.constructor.prototype;\n } return O instanceof Object ? ObjectProto : null;\n};\n","var has = require('./_has');\nvar toIObject = require('./_to-iobject');\nvar arrayIndexOf = require('./_array-includes')(false);\nvar IE_PROTO = require('./_shared-key')('IE_PROTO');\n\nmodule.exports = function (object, names) {\n var O = toIObject(object);\n var i = 0;\n var result = [];\n var key;\n for (key in O) if (key != IE_PROTO) has(O, key) && result.push(key);\n // Don't enum bug & hidden keys\n while (names.length > i) if (has(O, key = names[i++])) {\n ~arrayIndexOf(result, key) || result.push(key);\n }\n return result;\n};\n","// 19.1.2.14 / 15.2.3.14 Object.keys(O)\nvar $keys = require('./_object-keys-internal');\nvar enumBugKeys = require('./_enum-bug-keys');\n\nmodule.exports = Object.keys || function keys(O) {\n return $keys(O, enumBugKeys);\n};\n","exports.f = {}.propertyIsEnumerable;\n","// most Object methods by ES6 should accept primitives\nvar $export = require('./_export');\nvar core = require('./_core');\nvar fails = require('./_fails');\nmodule.exports = function (KEY, exec) {\n var fn = (core.Object || {})[KEY] || Object[KEY];\n var exp = {};\n exp[KEY] = exec(fn);\n $export($export.S + $export.F * fails(function () { fn(1); }), 'Object', exp);\n};\n","var getKeys = require('./_object-keys');\nvar toIObject = require('./_to-iobject');\nvar isEnum = require('./_object-pie').f;\nmodule.exports = function (isEntries) {\n return function (it) {\n var O = toIObject(it);\n var keys = getKeys(O);\n var length = keys.length;\n var i = 0;\n var result = [];\n var key;\n while (length > i) if (isEnum.call(O, key = keys[i++])) {\n result.push(isEntries ? [key, O[key]] : O[key]);\n } return result;\n };\n};\n","// all object keys, includes non-enumerable and symbols\nvar gOPN = require('./_object-gopn');\nvar gOPS = require('./_object-gops');\nvar anObject = require('./_an-object');\nvar Reflect = require('./_global').Reflect;\nmodule.exports = Reflect && Reflect.ownKeys || function ownKeys(it) {\n var keys = gOPN.f(anObject(it));\n var getSymbols = gOPS.f;\n return getSymbols ? keys.concat(getSymbols(it)) : keys;\n};\n","var $parseFloat = require('./_global').parseFloat;\nvar $trim = require('./_string-trim').trim;\n\nmodule.exports = 1 / $parseFloat(require('./_string-ws') + '-0') !== -Infinity ? function parseFloat(str) {\n var string = $trim(String(str), 3);\n var result = $parseFloat(string);\n return result === 0 && string.charAt(0) == '-' ? -0 : result;\n} : $parseFloat;\n","var $parseInt = require('./_global').parseInt;\nvar $trim = require('./_string-trim').trim;\nvar ws = require('./_string-ws');\nvar hex = /^[-+]?0[xX]/;\n\nmodule.exports = $parseInt(ws + '08') !== 8 || $parseInt(ws + '0x16') !== 22 ? function parseInt(str, radix) {\n var string = $trim(String(str), 3);\n return $parseInt(string, (radix >>> 0) || (hex.test(string) ? 16 : 10));\n} : $parseInt;\n","module.exports = function (exec) {\n try {\n return { e: false, v: exec() };\n } catch (e) {\n return { e: true, v: e };\n }\n};\n","var anObject = require('./_an-object');\nvar isObject = require('./_is-object');\nvar newPromiseCapability = require('./_new-promise-capability');\n\nmodule.exports = function (C, x) {\n anObject(C);\n if (isObject(x) && x.constructor === C) return x;\n var promiseCapability = newPromiseCapability.f(C);\n var resolve = promiseCapability.resolve;\n resolve(x);\n return promiseCapability.promise;\n};\n","module.exports = function (bitmap, value) {\n return {\n enumerable: !(bitmap & 1),\n configurable: !(bitmap & 2),\n writable: !(bitmap & 4),\n value: value\n };\n};\n","var redefine = require('./_redefine');\nmodule.exports = function (target, src, safe) {\n for (var key in src) redefine(target, key, src[key], safe);\n return target;\n};\n","var global = require('./_global');\nvar hide = require('./_hide');\nvar has = require('./_has');\nvar SRC = require('./_uid')('src');\nvar TO_STRING = 'toString';\nvar $toString = Function[TO_STRING];\nvar TPL = ('' + $toString).split(TO_STRING);\n\nrequire('./_core').inspectSource = function (it) {\n return $toString.call(it);\n};\n\n(module.exports = function (O, key, val, safe) {\n var isFunction = typeof val == 'function';\n if (isFunction) has(val, 'name') || hide(val, 'name', key);\n if (O[key] === val) return;\n if (isFunction) has(val, SRC) || hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));\n if (O === global) {\n O[key] = val;\n } else if (!safe) {\n delete O[key];\n hide(O, key, val);\n } else if (O[key]) {\n O[key] = val;\n } else {\n hide(O, key, val);\n }\n// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative\n})(Function.prototype, TO_STRING, function toString() {\n return typeof this == 'function' && this[SRC] || $toString.call(this);\n});\n","module.exports = function (regExp, replace) {\n var replacer = replace === Object(replace) ? function (part) {\n return replace[part];\n } : replace;\n return function (it) {\n return String(it).replace(regExp, replacer);\n };\n};\n","// 7.2.9 SameValue(x, y)\nmodule.exports = Object.is || function is(x, y) {\n // eslint-disable-next-line no-self-compare\n return x === y ? x !== 0 || 1 / x === 1 / y : x != x && y != y;\n};\n","'use strict';\n// https://tc39.github.io/proposal-setmap-offrom/\nvar $export = require('./_export');\nvar aFunction = require('./_a-function');\nvar ctx = require('./_ctx');\nvar forOf = require('./_for-of');\n\nmodule.exports = function (COLLECTION) {\n $export($export.S, COLLECTION, { from: function from(source /* , mapFn, thisArg */) {\n var mapFn = arguments[1];\n var mapping, A, n, cb;\n aFunction(this);\n mapping = mapFn !== undefined;\n if (mapping) aFunction(mapFn);\n if (source == undefined) return new this();\n A = [];\n if (mapping) {\n n = 0;\n cb = ctx(mapFn, arguments[2], 2);\n forOf(source, false, function (nextItem) {\n A.push(cb(nextItem, n++));\n });\n } else {\n forOf(source, false, A.push, A);\n }\n return new this(A);\n } });\n};\n","'use strict';\n// https://tc39.github.io/proposal-setmap-offrom/\nvar $export = require('./_export');\n\nmodule.exports = function (COLLECTION) {\n $export($export.S, COLLECTION, { of: function of() {\n var length = arguments.length;\n var A = new Array(length);\n while (length--) A[length] = arguments[length];\n return new this(A);\n } });\n};\n","// Works with __proto__ only. Old v8 can't work with null proto objects.\n/* eslint-disable no-proto */\nvar isObject = require('./_is-object');\nvar anObject = require('./_an-object');\nvar check = function (O, proto) {\n anObject(O);\n if (!isObject(proto) && proto !== null) throw TypeError(proto + \": can't set as prototype!\");\n};\nmodule.exports = {\n set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line\n function (test, buggy, set) {\n try {\n set = require('./_ctx')(Function.call, require('./_object-gopd').f(Object.prototype, '__proto__').set, 2);\n set(test, []);\n buggy = !(test instanceof Array);\n } catch (e) { buggy = true; }\n return function setPrototypeOf(O, proto) {\n check(O, proto);\n if (buggy) O.__proto__ = proto;\n else set(O, proto);\n return O;\n };\n }({}, false) : undefined),\n check: check\n};\n","'use strict';\nvar global = require('./_global');\nvar dP = require('./_object-dp');\nvar DESCRIPTORS = require('./_descriptors');\nvar SPECIES = require('./_wks')('species');\n\nmodule.exports = function (KEY) {\n var C = global[KEY];\n if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, {\n configurable: true,\n get: function () { return this; }\n });\n};\n","var def = require('./_object-dp').f;\nvar has = require('./_has');\nvar TAG = require('./_wks')('toStringTag');\n\nmodule.exports = function (it, tag, stat) {\n if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { configurable: true, value: tag });\n};\n","var shared = require('./_shared')('keys');\nvar uid = require('./_uid');\nmodule.exports = function (key) {\n return shared[key] || (shared[key] = uid(key));\n};\n","var core = require('./_core');\nvar global = require('./_global');\nvar SHARED = '__core-js_shared__';\nvar store = global[SHARED] || (global[SHARED] = {});\n\n(module.exports = function (key, value) {\n return store[key] || (store[key] = value !== undefined ? value : {});\n})('versions', []).push({\n version: core.version,\n mode: require('./_library') ? 'pure' : 'global',\n copyright: '© 2018 Denis Pushkarev (zloirock.ru)'\n});\n","// 7.3.20 SpeciesConstructor(O, defaultConstructor)\nvar anObject = require('./_an-object');\nvar aFunction = require('./_a-function');\nvar SPECIES = require('./_wks')('species');\nmodule.exports = function (O, D) {\n var C = anObject(O).constructor;\n var S;\n return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? D : aFunction(S);\n};\n","'use strict';\nvar fails = require('./_fails');\n\nmodule.exports = function (method, arg) {\n return !!method && fails(function () {\n // eslint-disable-next-line no-useless-call\n arg ? method.call(null, function () { /* empty */ }, 1) : method.call(null);\n });\n};\n","var toInteger = require('./_to-integer');\nvar defined = require('./_defined');\n// true -> String#at\n// false -> String#codePointAt\nmodule.exports = function (TO_STRING) {\n return function (that, pos) {\n var s = String(defined(that));\n var i = toInteger(pos);\n var l = s.length;\n var a, b;\n if (i < 0 || i >= l) return TO_STRING ? '' : undefined;\n a = s.charCodeAt(i);\n return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff\n ? TO_STRING ? s.charAt(i) : a\n : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;\n };\n};\n","// helper for String#{startsWith, endsWith, includes}\nvar isRegExp = require('./_is-regexp');\nvar defined = require('./_defined');\n\nmodule.exports = function (that, searchString, NAME) {\n if (isRegExp(searchString)) throw TypeError('String#' + NAME + \" doesn't accept regex!\");\n return String(defined(that));\n};\n","var $export = require('./_export');\nvar fails = require('./_fails');\nvar defined = require('./_defined');\nvar quot = /\"/g;\n// B.2.3.2.1 CreateHTML(string, tag, attribute, value)\nvar createHTML = function (string, tag, attribute, value) {\n var S = String(defined(string));\n var p1 = '<' + tag;\n if (attribute !== '') p1 += ' ' + attribute + '=\"' + String(value).replace(quot, '"') + '\"';\n return p1 + '>' + S + '</' + tag + '>';\n};\nmodule.exports = function (NAME, exec) {\n var O = {};\n O[NAME] = exec(createHTML);\n $export($export.P + $export.F * fails(function () {\n var test = ''[NAME]('\"');\n return test !== test.toLowerCase() || test.split('\"').length > 3;\n }), 'String', O);\n};\n","// https://github.com/tc39/proposal-string-pad-start-end\nvar toLength = require('./_to-length');\nvar repeat = require('./_string-repeat');\nvar defined = require('./_defined');\n\nmodule.exports = function (that, maxLength, fillString, left) {\n var S = String(defined(that));\n var stringLength = S.length;\n var fillStr = fillString === undefined ? ' ' : String(fillString);\n var intMaxLength = toLength(maxLength);\n if (intMaxLength <= stringLength || fillStr == '') return S;\n var fillLen = intMaxLength - stringLength;\n var stringFiller = repeat.call(fillStr, Math.ceil(fillLen / fillStr.length));\n if (stringFiller.length > fillLen) stringFiller = stringFiller.slice(0, fillLen);\n return left ? stringFiller + S : S + stringFiller;\n};\n","'use strict';\nvar toInteger = require('./_to-integer');\nvar defined = require('./_defined');\n\nmodule.exports = function repeat(count) {\n var str = String(defined(this));\n var res = '';\n var n = toInteger(count);\n if (n < 0 || n == Infinity) throw RangeError(\"Count can't be negative\");\n for (;n > 0; (n >>>= 1) && (str += str)) if (n & 1) res += str;\n return res;\n};\n","var $export = require('./_export');\nvar defined = require('./_defined');\nvar fails = require('./_fails');\nvar spaces = require('./_string-ws');\nvar space = '[' + spaces + ']';\nvar non = '\\u200b\\u0085';\nvar ltrim = RegExp('^' + space + space + '*');\nvar rtrim = RegExp(space + space + '*$');\n\nvar exporter = function (KEY, exec, ALIAS) {\n var exp = {};\n var FORCE = fails(function () {\n return !!spaces[KEY]() || non[KEY]() != non;\n });\n var fn = exp[KEY] = FORCE ? exec(trim) : spaces[KEY];\n if (ALIAS) exp[ALIAS] = fn;\n $export($export.P + $export.F * FORCE, 'String', exp);\n};\n\n// 1 -> String#trimLeft\n// 2 -> String#trimRight\n// 3 -> String#trim\nvar trim = exporter.trim = function (string, TYPE) {\n string = String(defined(string));\n if (TYPE & 1) string = string.replace(ltrim, '');\n if (TYPE & 2) string = string.replace(rtrim, '');\n return string;\n};\n\nmodule.exports = exporter;\n","module.exports = '\\x09\\x0A\\x0B\\x0C\\x0D\\x20\\xA0\\u1680\\u180E\\u2000\\u2001\\u2002\\u2003' +\n '\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000\\u2028\\u2029\\uFEFF';\n","var ctx = require('./_ctx');\nvar invoke = require('./_invoke');\nvar html = require('./_html');\nvar cel = require('./_dom-create');\nvar global = require('./_global');\nvar process = global.process;\nvar setTask = global.setImmediate;\nvar clearTask = global.clearImmediate;\nvar MessageChannel = global.MessageChannel;\nvar Dispatch = global.Dispatch;\nvar counter = 0;\nvar queue = {};\nvar ONREADYSTATECHANGE = 'onreadystatechange';\nvar defer, channel, port;\nvar run = function () {\n var id = +this;\n // eslint-disable-next-line no-prototype-builtins\n if (queue.hasOwnProperty(id)) {\n var fn = queue[id];\n delete queue[id];\n fn();\n }\n};\nvar listener = function (event) {\n run.call(event.data);\n};\n// Node.js 0.9+ & IE10+ has setImmediate, otherwise:\nif (!setTask || !clearTask) {\n setTask = function setImmediate(fn) {\n var args = [];\n var i = 1;\n while (arguments.length > i) args.push(arguments[i++]);\n queue[++counter] = function () {\n // eslint-disable-next-line no-new-func\n invoke(typeof fn == 'function' ? fn : Function(fn), args);\n };\n defer(counter);\n return counter;\n };\n clearTask = function clearImmediate(id) {\n delete queue[id];\n };\n // Node.js 0.8-\n if (require('./_cof')(process) == 'process') {\n defer = function (id) {\n process.nextTick(ctx(run, id, 1));\n };\n // Sphere (JS game engine) Dispatch API\n } else if (Dispatch && Dispatch.now) {\n defer = function (id) {\n Dispatch.now(ctx(run, id, 1));\n };\n // Browsers with MessageChannel, includes WebWorkers\n } else if (MessageChannel) {\n channel = new MessageChannel();\n port = channel.port2;\n channel.port1.onmessage = listener;\n defer = ctx(port.postMessage, port, 1);\n // Browsers with postMessage, skip WebWorkers\n // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'\n } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts) {\n defer = function (id) {\n global.postMessage(id + '', '*');\n };\n global.addEventListener('message', listener, false);\n // IE8-\n } else if (ONREADYSTATECHANGE in cel('script')) {\n defer = function (id) {\n html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function () {\n html.removeChild(this);\n run.call(id);\n };\n };\n // Rest old browsers\n } else {\n defer = function (id) {\n setTimeout(ctx(run, id, 1), 0);\n };\n }\n}\nmodule.exports = {\n set: setTask,\n clear: clearTask\n};\n","var toInteger = require('./_to-integer');\nvar max = Math.max;\nvar min = Math.min;\nmodule.exports = function (index, length) {\n index = toInteger(index);\n return index < 0 ? max(index + length, 0) : min(index, length);\n};\n","// https://tc39.github.io/ecma262/#sec-toindex\nvar toInteger = require('./_to-integer');\nvar toLength = require('./_to-length');\nmodule.exports = function (it) {\n if (it === undefined) return 0;\n var number = toInteger(it);\n var length = toLength(number);\n if (number !== length) throw RangeError('Wrong length!');\n return length;\n};\n","// 7.1.4 ToInteger\nvar ceil = Math.ceil;\nvar floor = Math.floor;\nmodule.exports = function (it) {\n return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);\n};\n","// to indexed object, toObject with fallback for non-array-like ES3 strings\nvar IObject = require('./_iobject');\nvar defined = require('./_defined');\nmodule.exports = function (it) {\n return IObject(defined(it));\n};\n","// 7.1.15 ToLength\nvar toInteger = require('./_to-integer');\nvar min = Math.min;\nmodule.exports = function (it) {\n return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991\n};\n","// 7.1.13 ToObject(argument)\nvar defined = require('./_defined');\nmodule.exports = function (it) {\n return Object(defined(it));\n};\n","// 7.1.1 ToPrimitive(input [, PreferredType])\nvar isObject = require('./_is-object');\n// instead of the ES6 spec version, we didn't implement @@toPrimitive case\n// and the second argument - flag - preferred type is a string\nmodule.exports = function (it, S) {\n if (!isObject(it)) return it;\n var fn, val;\n if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;\n if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;\n if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;\n throw TypeError(\"Can't convert object to primitive value\");\n};\n","'use strict';\nif (require('./_descriptors')) {\n var LIBRARY = require('./_library');\n var global = require('./_global');\n var fails = require('./_fails');\n var $export = require('./_export');\n var $typed = require('./_typed');\n var $buffer = require('./_typed-buffer');\n var ctx = require('./_ctx');\n var anInstance = require('./_an-instance');\n var propertyDesc = require('./_property-desc');\n var hide = require('./_hide');\n var redefineAll = require('./_redefine-all');\n var toInteger = require('./_to-integer');\n var toLength = require('./_to-length');\n var toIndex = require('./_to-index');\n var toAbsoluteIndex = require('./_to-absolute-index');\n var toPrimitive = require('./_to-primitive');\n var has = require('./_has');\n var classof = require('./_classof');\n var isObject = require('./_is-object');\n var toObject = require('./_to-object');\n var isArrayIter = require('./_is-array-iter');\n var create = require('./_object-create');\n var getPrototypeOf = require('./_object-gpo');\n var gOPN = require('./_object-gopn').f;\n var getIterFn = require('./core.get-iterator-method');\n var uid = require('./_uid');\n var wks = require('./_wks');\n var createArrayMethod = require('./_array-methods');\n var createArrayIncludes = require('./_array-includes');\n var speciesConstructor = require('./_species-constructor');\n var ArrayIterators = require('./es6.array.iterator');\n var Iterators = require('./_iterators');\n var $iterDetect = require('./_iter-detect');\n var setSpecies = require('./_set-species');\n var arrayFill = require('./_array-fill');\n var arrayCopyWithin = require('./_array-copy-within');\n var $DP = require('./_object-dp');\n var $GOPD = require('./_object-gopd');\n var dP = $DP.f;\n var gOPD = $GOPD.f;\n var RangeError = global.RangeError;\n var TypeError = global.TypeError;\n var Uint8Array = global.Uint8Array;\n var ARRAY_BUFFER = 'ArrayBuffer';\n var SHARED_BUFFER = 'Shared' + ARRAY_BUFFER;\n var BYTES_PER_ELEMENT = 'BYTES_PER_ELEMENT';\n var PROTOTYPE = 'prototype';\n var ArrayProto = Array[PROTOTYPE];\n var $ArrayBuffer = $buffer.ArrayBuffer;\n var $DataView = $buffer.DataView;\n var arrayForEach = createArrayMethod(0);\n var arrayFilter = createArrayMethod(2);\n var arraySome = createArrayMethod(3);\n var arrayEvery = createArrayMethod(4);\n var arrayFind = createArrayMethod(5);\n var arrayFindIndex = createArrayMethod(6);\n var arrayIncludes = createArrayIncludes(true);\n var arrayIndexOf = createArrayIncludes(false);\n var arrayValues = ArrayIterators.values;\n var arrayKeys = ArrayIterators.keys;\n var arrayEntries = ArrayIterators.entries;\n var arrayLastIndexOf = ArrayProto.lastIndexOf;\n var arrayReduce = ArrayProto.reduce;\n var arrayReduceRight = ArrayProto.reduceRight;\n var arrayJoin = ArrayProto.join;\n var arraySort = ArrayProto.sort;\n var arraySlice = ArrayProto.slice;\n var arrayToString = ArrayProto.toString;\n var arrayToLocaleString = ArrayProto.toLocaleString;\n var ITERATOR = wks('iterator');\n var TAG = wks('toStringTag');\n var TYPED_CONSTRUCTOR = uid('typed_constructor');\n var DEF_CONSTRUCTOR = uid('def_constructor');\n var ALL_CONSTRUCTORS = $typed.CONSTR;\n var TYPED_ARRAY = $typed.TYPED;\n var VIEW = $typed.VIEW;\n var WRONG_LENGTH = 'Wrong length!';\n\n var $map = createArrayMethod(1, function (O, length) {\n return allocate(speciesConstructor(O, O[DEF_CONSTRUCTOR]), length);\n });\n\n var LITTLE_ENDIAN = fails(function () {\n // eslint-disable-next-line no-undef\n return new Uint8Array(new Uint16Array([1]).buffer)[0] === 1;\n });\n\n var FORCED_SET = !!Uint8Array && !!Uint8Array[PROTOTYPE].set && fails(function () {\n new Uint8Array(1).set({});\n });\n\n var toOffset = function (it, BYTES) {\n var offset = toInteger(it);\n if (offset < 0 || offset % BYTES) throw RangeError('Wrong offset!');\n return offset;\n };\n\n var validate = function (it) {\n if (isObject(it) && TYPED_ARRAY in it) return it;\n throw TypeError(it + ' is not a typed array!');\n };\n\n var allocate = function (C, length) {\n if (!(isObject(C) && TYPED_CONSTRUCTOR in C)) {\n throw TypeError('It is not a typed array constructor!');\n } return new C(length);\n };\n\n var speciesFromList = function (O, list) {\n return fromList(speciesConstructor(O, O[DEF_CONSTRUCTOR]), list);\n };\n\n var fromList = function (C, list) {\n var index = 0;\n var length = list.length;\n var result = allocate(C, length);\n while (length > index) result[index] = list[index++];\n return result;\n };\n\n var addGetter = function (it, key, internal) {\n dP(it, key, { get: function () { return this._d[internal]; } });\n };\n\n var $from = function from(source /* , mapfn, thisArg */) {\n var O = toObject(source);\n var aLen = arguments.length;\n var mapfn = aLen > 1 ? arguments[1] : undefined;\n var mapping = mapfn !== undefined;\n var iterFn = getIterFn(O);\n var i, length, values, result, step, iterator;\n if (iterFn != undefined && !isArrayIter(iterFn)) {\n for (iterator = iterFn.call(O), values = [], i = 0; !(step = iterator.next()).done; i++) {\n values.push(step.value);\n } O = values;\n }\n if (mapping && aLen > 2) mapfn = ctx(mapfn, arguments[2], 2);\n for (i = 0, length = toLength(O.length), result = allocate(this, length); length > i; i++) {\n result[i] = mapping ? mapfn(O[i], i) : O[i];\n }\n return result;\n };\n\n var $of = function of(/* ...items */) {\n var index = 0;\n var length = arguments.length;\n var result = allocate(this, length);\n while (length > index) result[index] = arguments[index++];\n return result;\n };\n\n // iOS Safari 6.x fails here\n var TO_LOCALE_BUG = !!Uint8Array && fails(function () { arrayToLocaleString.call(new Uint8Array(1)); });\n\n var $toLocaleString = function toLocaleString() {\n return arrayToLocaleString.apply(TO_LOCALE_BUG ? arraySlice.call(validate(this)) : validate(this), arguments);\n };\n\n var proto = {\n copyWithin: function copyWithin(target, start /* , end */) {\n return arrayCopyWithin.call(validate(this), target, start, arguments.length > 2 ? arguments[2] : undefined);\n },\n every: function every(callbackfn /* , thisArg */) {\n return arrayEvery(validate(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n },\n fill: function fill(value /* , start, end */) { // eslint-disable-line no-unused-vars\n return arrayFill.apply(validate(this), arguments);\n },\n filter: function filter(callbackfn /* , thisArg */) {\n return speciesFromList(this, arrayFilter(validate(this), callbackfn,\n arguments.length > 1 ? arguments[1] : undefined));\n },\n find: function find(predicate /* , thisArg */) {\n return arrayFind(validate(this), predicate, arguments.length > 1 ? arguments[1] : undefined);\n },\n findIndex: function findIndex(predicate /* , thisArg */) {\n return arrayFindIndex(validate(this), predicate, arguments.length > 1 ? arguments[1] : undefined);\n },\n forEach: function forEach(callbackfn /* , thisArg */) {\n arrayForEach(validate(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n },\n indexOf: function indexOf(searchElement /* , fromIndex */) {\n return arrayIndexOf(validate(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);\n },\n includes: function includes(searchElement /* , fromIndex */) {\n return arrayIncludes(validate(this), searchElement, arguments.length > 1 ? arguments[1] : undefined);\n },\n join: function join(separator) { // eslint-disable-line no-unused-vars\n return arrayJoin.apply(validate(this), arguments);\n },\n lastIndexOf: function lastIndexOf(searchElement /* , fromIndex */) { // eslint-disable-line no-unused-vars\n return arrayLastIndexOf.apply(validate(this), arguments);\n },\n map: function map(mapfn /* , thisArg */) {\n return $map(validate(this), mapfn, arguments.length > 1 ? arguments[1] : undefined);\n },\n reduce: function reduce(callbackfn /* , initialValue */) { // eslint-disable-line no-unused-vars\n return arrayReduce.apply(validate(this), arguments);\n },\n reduceRight: function reduceRight(callbackfn /* , initialValue */) { // eslint-disable-line no-unused-vars\n return arrayReduceRight.apply(validate(this), arguments);\n },\n reverse: function reverse() {\n var that = this;\n var length = validate(that).length;\n var middle = Math.floor(length / 2);\n var index = 0;\n var value;\n while (index < middle) {\n value = that[index];\n that[index++] = that[--length];\n that[length] = value;\n } return that;\n },\n some: function some(callbackfn /* , thisArg */) {\n return arraySome(validate(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n },\n sort: function sort(comparefn) {\n return arraySort.call(validate(this), comparefn);\n },\n subarray: function subarray(begin, end) {\n var O = validate(this);\n var length = O.length;\n var $begin = toAbsoluteIndex(begin, length);\n return new (speciesConstructor(O, O[DEF_CONSTRUCTOR]))(\n O.buffer,\n O.byteOffset + $begin * O.BYTES_PER_ELEMENT,\n toLength((end === undefined ? length : toAbsoluteIndex(end, length)) - $begin)\n );\n }\n };\n\n var $slice = function slice(start, end) {\n return speciesFromList(this, arraySlice.call(validate(this), start, end));\n };\n\n var $set = function set(arrayLike /* , offset */) {\n validate(this);\n var offset = toOffset(arguments[1], 1);\n var length = this.length;\n var src = toObject(arrayLike);\n var len = toLength(src.length);\n var index = 0;\n if (len + offset > length) throw RangeError(WRONG_LENGTH);\n while (index < len) this[offset + index] = src[index++];\n };\n\n var $iterators = {\n entries: function entries() {\n return arrayEntries.call(validate(this));\n },\n keys: function keys() {\n return arrayKeys.call(validate(this));\n },\n values: function values() {\n return arrayValues.call(validate(this));\n }\n };\n\n var isTAIndex = function (target, key) {\n return isObject(target)\n && target[TYPED_ARRAY]\n && typeof key != 'symbol'\n && key in target\n && String(+key) == String(key);\n };\n var $getDesc = function getOwnPropertyDescriptor(target, key) {\n return isTAIndex(target, key = toPrimitive(key, true))\n ? propertyDesc(2, target[key])\n : gOPD(target, key);\n };\n var $setDesc = function defineProperty(target, key, desc) {\n if (isTAIndex(target, key = toPrimitive(key, true))\n && isObject(desc)\n && has(desc, 'value')\n && !has(desc, 'get')\n && !has(desc, 'set')\n // TODO: add validation descriptor w/o calling accessors\n && !desc.configurable\n && (!has(desc, 'writable') || desc.writable)\n && (!has(desc, 'enumerable') || desc.enumerable)\n ) {\n target[key] = desc.value;\n return target;\n } return dP(target, key, desc);\n };\n\n if (!ALL_CONSTRUCTORS) {\n $GOPD.f = $getDesc;\n $DP.f = $setDesc;\n }\n\n $export($export.S + $export.F * !ALL_CONSTRUCTORS, 'Object', {\n getOwnPropertyDescriptor: $getDesc,\n defineProperty: $setDesc\n });\n\n if (fails(function () { arrayToString.call({}); })) {\n arrayToString = arrayToLocaleString = function toString() {\n return arrayJoin.call(this);\n };\n }\n\n var $TypedArrayPrototype$ = redefineAll({}, proto);\n redefineAll($TypedArrayPrototype$, $iterators);\n hide($TypedArrayPrototype$, ITERATOR, $iterators.values);\n redefineAll($TypedArrayPrototype$, {\n slice: $slice,\n set: $set,\n constructor: function () { /* noop */ },\n toString: arrayToString,\n toLocaleString: $toLocaleString\n });\n addGetter($TypedArrayPrototype$, 'buffer', 'b');\n addGetter($TypedArrayPrototype$, 'byteOffset', 'o');\n addGetter($TypedArrayPrototype$, 'byteLength', 'l');\n addGetter($TypedArrayPrototype$, 'length', 'e');\n dP($TypedArrayPrototype$, TAG, {\n get: function () { return this[TYPED_ARRAY]; }\n });\n\n // eslint-disable-next-line max-statements\n module.exports = function (KEY, BYTES, wrapper, CLAMPED) {\n CLAMPED = !!CLAMPED;\n var NAME = KEY + (CLAMPED ? 'Clamped' : '') + 'Array';\n var GETTER = 'get' + KEY;\n var SETTER = 'set' + KEY;\n var TypedArray = global[NAME];\n var Base = TypedArray || {};\n var TAC = TypedArray && getPrototypeOf(TypedArray);\n var FORCED = !TypedArray || !$typed.ABV;\n var O = {};\n var TypedArrayPrototype = TypedArray && TypedArray[PROTOTYPE];\n var getter = function (that, index) {\n var data = that._d;\n return data.v[GETTER](index * BYTES + data.o, LITTLE_ENDIAN);\n };\n var setter = function (that, index, value) {\n var data = that._d;\n if (CLAMPED) value = (value = Math.round(value)) < 0 ? 0 : value > 0xff ? 0xff : value & 0xff;\n data.v[SETTER](index * BYTES + data.o, value, LITTLE_ENDIAN);\n };\n var addElement = function (that, index) {\n dP(that, index, {\n get: function () {\n return getter(this, index);\n },\n set: function (value) {\n return setter(this, index, value);\n },\n enumerable: true\n });\n };\n if (FORCED) {\n TypedArray = wrapper(function (that, data, $offset, $length) {\n anInstance(that, TypedArray, NAME, '_d');\n var index = 0;\n var offset = 0;\n var buffer, byteLength, length, klass;\n if (!isObject(data)) {\n length = toIndex(data);\n byteLength = length * BYTES;\n buffer = new $ArrayBuffer(byteLength);\n } else if (data instanceof $ArrayBuffer || (klass = classof(data)) == ARRAY_BUFFER || klass == SHARED_BUFFER) {\n buffer = data;\n offset = toOffset($offset, BYTES);\n var $len = data.byteLength;\n if ($length === undefined) {\n if ($len % BYTES) throw RangeError(WRONG_LENGTH);\n byteLength = $len - offset;\n if (byteLength < 0) throw RangeError(WRONG_LENGTH);\n } else {\n byteLength = toLength($length) * BYTES;\n if (byteLength + offset > $len) throw RangeError(WRONG_LENGTH);\n }\n length = byteLength / BYTES;\n } else if (TYPED_ARRAY in data) {\n return fromList(TypedArray, data);\n } else {\n return $from.call(TypedArray, data);\n }\n hide(that, '_d', {\n b: buffer,\n o: offset,\n l: byteLength,\n e: length,\n v: new $DataView(buffer)\n });\n while (index < length) addElement(that, index++);\n });\n TypedArrayPrototype = TypedArray[PROTOTYPE] = create($TypedArrayPrototype$);\n hide(TypedArrayPrototype, 'constructor', TypedArray);\n } else if (!fails(function () {\n TypedArray(1);\n }) || !fails(function () {\n new TypedArray(-1); // eslint-disable-line no-new\n }) || !$iterDetect(function (iter) {\n new TypedArray(); // eslint-disable-line no-new\n new TypedArray(null); // eslint-disable-line no-new\n new TypedArray(1.5); // eslint-disable-line no-new\n new TypedArray(iter); // eslint-disable-line no-new\n }, true)) {\n TypedArray = wrapper(function (that, data, $offset, $length) {\n anInstance(that, TypedArray, NAME);\n var klass;\n // `ws` module bug, temporarily remove validation length for Uint8Array\n // https://github.com/websockets/ws/pull/645\n if (!isObject(data)) return new Base(toIndex(data));\n if (data instanceof $ArrayBuffer || (klass = classof(data)) == ARRAY_BUFFER || klass == SHARED_BUFFER) {\n return $length !== undefined\n ? new Base(data, toOffset($offset, BYTES), $length)\n : $offset !== undefined\n ? new Base(data, toOffset($offset, BYTES))\n : new Base(data);\n }\n if (TYPED_ARRAY in data) return fromList(TypedArray, data);\n return $from.call(TypedArray, data);\n });\n arrayForEach(TAC !== Function.prototype ? gOPN(Base).concat(gOPN(TAC)) : gOPN(Base), function (key) {\n if (!(key in TypedArray)) hide(TypedArray, key, Base[key]);\n });\n TypedArray[PROTOTYPE] = TypedArrayPrototype;\n if (!LIBRARY) TypedArrayPrototype.constructor = TypedArray;\n }\n var $nativeIterator = TypedArrayPrototype[ITERATOR];\n var CORRECT_ITER_NAME = !!$nativeIterator\n && ($nativeIterator.name == 'values' || $nativeIterator.name == undefined);\n var $iterator = $iterators.values;\n hide(TypedArray, TYPED_CONSTRUCTOR, true);\n hide(TypedArrayPrototype, TYPED_ARRAY, NAME);\n hide(TypedArrayPrototype, VIEW, true);\n hide(TypedArrayPrototype, DEF_CONSTRUCTOR, TypedArray);\n\n if (CLAMPED ? new TypedArray(1)[TAG] != NAME : !(TAG in TypedArrayPrototype)) {\n dP(TypedArrayPrototype, TAG, {\n get: function () { return NAME; }\n });\n }\n\n O[NAME] = TypedArray;\n\n $export($export.G + $export.W + $export.F * (TypedArray != Base), O);\n\n $export($export.S, NAME, {\n BYTES_PER_ELEMENT: BYTES\n });\n\n $export($export.S + $export.F * fails(function () { Base.of.call(TypedArray, 1); }), NAME, {\n from: $from,\n of: $of\n });\n\n if (!(BYTES_PER_ELEMENT in TypedArrayPrototype)) hide(TypedArrayPrototype, BYTES_PER_ELEMENT, BYTES);\n\n $export($export.P, NAME, proto);\n\n setSpecies(NAME);\n\n $export($export.P + $export.F * FORCED_SET, NAME, { set: $set });\n\n $export($export.P + $export.F * !CORRECT_ITER_NAME, NAME, $iterators);\n\n if (!LIBRARY && TypedArrayPrototype.toString != arrayToString) TypedArrayPrototype.toString = arrayToString;\n\n $export($export.P + $export.F * fails(function () {\n new TypedArray(1).slice();\n }), NAME, { slice: $slice });\n\n $export($export.P + $export.F * (fails(function () {\n return [1, 2].toLocaleString() != new TypedArray([1, 2]).toLocaleString();\n }) || !fails(function () {\n TypedArrayPrototype.toLocaleString.call([1, 2]);\n })), NAME, { toLocaleString: $toLocaleString });\n\n Iterators[NAME] = CORRECT_ITER_NAME ? $nativeIterator : $iterator;\n if (!LIBRARY && !CORRECT_ITER_NAME) hide(TypedArrayPrototype, ITERATOR, $iterator);\n };\n} else module.exports = function () { /* empty */ };\n","'use strict';\nvar global = require('./_global');\nvar DESCRIPTORS = require('./_descriptors');\nvar LIBRARY = require('./_library');\nvar $typed = require('./_typed');\nvar hide = require('./_hide');\nvar redefineAll = require('./_redefine-all');\nvar fails = require('./_fails');\nvar anInstance = require('./_an-instance');\nvar toInteger = require('./_to-integer');\nvar toLength = require('./_to-length');\nvar toIndex = require('./_to-index');\nvar gOPN = require('./_object-gopn').f;\nvar dP = require('./_object-dp').f;\nvar arrayFill = require('./_array-fill');\nvar setToStringTag = require('./_set-to-string-tag');\nvar ARRAY_BUFFER = 'ArrayBuffer';\nvar DATA_VIEW = 'DataView';\nvar PROTOTYPE = 'prototype';\nvar WRONG_LENGTH = 'Wrong length!';\nvar WRONG_INDEX = 'Wrong index!';\nvar $ArrayBuffer = global[ARRAY_BUFFER];\nvar $DataView = global[DATA_VIEW];\nvar Math = global.Math;\nvar RangeError = global.RangeError;\n// eslint-disable-next-line no-shadow-restricted-names\nvar Infinity = global.Infinity;\nvar BaseBuffer = $ArrayBuffer;\nvar abs = Math.abs;\nvar pow = Math.pow;\nvar floor = Math.floor;\nvar log = Math.log;\nvar LN2 = Math.LN2;\nvar BUFFER = 'buffer';\nvar BYTE_LENGTH = 'byteLength';\nvar BYTE_OFFSET = 'byteOffset';\nvar $BUFFER = DESCRIPTORS ? '_b' : BUFFER;\nvar $LENGTH = DESCRIPTORS ? '_l' : BYTE_LENGTH;\nvar $OFFSET = DESCRIPTORS ? '_o' : BYTE_OFFSET;\n\n// IEEE754 conversions based on https://github.com/feross/ieee754\nfunction packIEEE754(value, mLen, nBytes) {\n var buffer = new Array(nBytes);\n var eLen = nBytes * 8 - mLen - 1;\n var eMax = (1 << eLen) - 1;\n var eBias = eMax >> 1;\n var rt = mLen === 23 ? pow(2, -24) - pow(2, -77) : 0;\n var i = 0;\n var s = value < 0 || value === 0 && 1 / value < 0 ? 1 : 0;\n var e, m, c;\n value = abs(value);\n // eslint-disable-next-line no-self-compare\n if (value != value || value === Infinity) {\n // eslint-disable-next-line no-self-compare\n m = value != value ? 1 : 0;\n e = eMax;\n } else {\n e = floor(log(value) / LN2);\n if (value * (c = pow(2, -e)) < 1) {\n e--;\n c *= 2;\n }\n if (e + eBias >= 1) {\n value += rt / c;\n } else {\n value += rt * pow(2, 1 - eBias);\n }\n if (value * c >= 2) {\n e++;\n c /= 2;\n }\n if (e + eBias >= eMax) {\n m = 0;\n e = eMax;\n } else if (e + eBias >= 1) {\n m = (value * c - 1) * pow(2, mLen);\n e = e + eBias;\n } else {\n m = value * pow(2, eBias - 1) * pow(2, mLen);\n e = 0;\n }\n }\n for (; mLen >= 8; buffer[i++] = m & 255, m /= 256, mLen -= 8);\n e = e << mLen | m;\n eLen += mLen;\n for (; eLen > 0; buffer[i++] = e & 255, e /= 256, eLen -= 8);\n buffer[--i] |= s * 128;\n return buffer;\n}\nfunction unpackIEEE754(buffer, mLen, nBytes) {\n var eLen = nBytes * 8 - mLen - 1;\n var eMax = (1 << eLen) - 1;\n var eBias = eMax >> 1;\n var nBits = eLen - 7;\n var i = nBytes - 1;\n var s = buffer[i--];\n var e = s & 127;\n var m;\n s >>= 7;\n for (; nBits > 0; e = e * 256 + buffer[i], i--, nBits -= 8);\n m = e & (1 << -nBits) - 1;\n e >>= -nBits;\n nBits += mLen;\n for (; nBits > 0; m = m * 256 + buffer[i], i--, nBits -= 8);\n if (e === 0) {\n e = 1 - eBias;\n } else if (e === eMax) {\n return m ? NaN : s ? -Infinity : Infinity;\n } else {\n m = m + pow(2, mLen);\n e = e - eBias;\n } return (s ? -1 : 1) * m * pow(2, e - mLen);\n}\n\nfunction unpackI32(bytes) {\n return bytes[3] << 24 | bytes[2] << 16 | bytes[1] << 8 | bytes[0];\n}\nfunction packI8(it) {\n return [it & 0xff];\n}\nfunction packI16(it) {\n return [it & 0xff, it >> 8 & 0xff];\n}\nfunction packI32(it) {\n return [it & 0xff, it >> 8 & 0xff, it >> 16 & 0xff, it >> 24 & 0xff];\n}\nfunction packF64(it) {\n return packIEEE754(it, 52, 8);\n}\nfunction packF32(it) {\n return packIEEE754(it, 23, 4);\n}\n\nfunction addGetter(C, key, internal) {\n dP(C[PROTOTYPE], key, { get: function () { return this[internal]; } });\n}\n\nfunction get(view, bytes, index, isLittleEndian) {\n var numIndex = +index;\n var intIndex = toIndex(numIndex);\n if (intIndex + bytes > view[$LENGTH]) throw RangeError(WRONG_INDEX);\n var store = view[$BUFFER]._b;\n var start = intIndex + view[$OFFSET];\n var pack = store.slice(start, start + bytes);\n return isLittleEndian ? pack : pack.reverse();\n}\nfunction set(view, bytes, index, conversion, value, isLittleEndian) {\n var numIndex = +index;\n var intIndex = toIndex(numIndex);\n if (intIndex + bytes > view[$LENGTH]) throw RangeError(WRONG_INDEX);\n var store = view[$BUFFER]._b;\n var start = intIndex + view[$OFFSET];\n var pack = conversion(+value);\n for (var i = 0; i < bytes; i++) store[start + i] = pack[isLittleEndian ? i : bytes - i - 1];\n}\n\nif (!$typed.ABV) {\n $ArrayBuffer = function ArrayBuffer(length) {\n anInstance(this, $ArrayBuffer, ARRAY_BUFFER);\n var byteLength = toIndex(length);\n this._b = arrayFill.call(new Array(byteLength), 0);\n this[$LENGTH] = byteLength;\n };\n\n $DataView = function DataView(buffer, byteOffset, byteLength) {\n anInstance(this, $DataView, DATA_VIEW);\n anInstance(buffer, $ArrayBuffer, DATA_VIEW);\n var bufferLength = buffer[$LENGTH];\n var offset = toInteger(byteOffset);\n if (offset < 0 || offset > bufferLength) throw RangeError('Wrong offset!');\n byteLength = byteLength === undefined ? bufferLength - offset : toLength(byteLength);\n if (offset + byteLength > bufferLength) throw RangeError(WRONG_LENGTH);\n this[$BUFFER] = buffer;\n this[$OFFSET] = offset;\n this[$LENGTH] = byteLength;\n };\n\n if (DESCRIPTORS) {\n addGetter($ArrayBuffer, BYTE_LENGTH, '_l');\n addGetter($DataView, BUFFER, '_b');\n addGetter($DataView, BYTE_LENGTH, '_l');\n addGetter($DataView, BYTE_OFFSET, '_o');\n }\n\n redefineAll($DataView[PROTOTYPE], {\n getInt8: function getInt8(byteOffset) {\n return get(this, 1, byteOffset)[0] << 24 >> 24;\n },\n getUint8: function getUint8(byteOffset) {\n return get(this, 1, byteOffset)[0];\n },\n getInt16: function getInt16(byteOffset /* , littleEndian */) {\n var bytes = get(this, 2, byteOffset, arguments[1]);\n return (bytes[1] << 8 | bytes[0]) << 16 >> 16;\n },\n getUint16: function getUint16(byteOffset /* , littleEndian */) {\n var bytes = get(this, 2, byteOffset, arguments[1]);\n return bytes[1] << 8 | bytes[0];\n },\n getInt32: function getInt32(byteOffset /* , littleEndian */) {\n return unpackI32(get(this, 4, byteOffset, arguments[1]));\n },\n getUint32: function getUint32(byteOffset /* , littleEndian */) {\n return unpackI32(get(this, 4, byteOffset, arguments[1])) >>> 0;\n },\n getFloat32: function getFloat32(byteOffset /* , littleEndian */) {\n return unpackIEEE754(get(this, 4, byteOffset, arguments[1]), 23, 4);\n },\n getFloat64: function getFloat64(byteOffset /* , littleEndian */) {\n return unpackIEEE754(get(this, 8, byteOffset, arguments[1]), 52, 8);\n },\n setInt8: function setInt8(byteOffset, value) {\n set(this, 1, byteOffset, packI8, value);\n },\n setUint8: function setUint8(byteOffset, value) {\n set(this, 1, byteOffset, packI8, value);\n },\n setInt16: function setInt16(byteOffset, value /* , littleEndian */) {\n set(this, 2, byteOffset, packI16, value, arguments[2]);\n },\n setUint16: function setUint16(byteOffset, value /* , littleEndian */) {\n set(this, 2, byteOffset, packI16, value, arguments[2]);\n },\n setInt32: function setInt32(byteOffset, value /* , littleEndian */) {\n set(this, 4, byteOffset, packI32, value, arguments[2]);\n },\n setUint32: function setUint32(byteOffset, value /* , littleEndian */) {\n set(this, 4, byteOffset, packI32, value, arguments[2]);\n },\n setFloat32: function setFloat32(byteOffset, value /* , littleEndian */) {\n set(this, 4, byteOffset, packF32, value, arguments[2]);\n },\n setFloat64: function setFloat64(byteOffset, value /* , littleEndian */) {\n set(this, 8, byteOffset, packF64, value, arguments[2]);\n }\n });\n} else {\n if (!fails(function () {\n $ArrayBuffer(1);\n }) || !fails(function () {\n new $ArrayBuffer(-1); // eslint-disable-line no-new\n }) || fails(function () {\n new $ArrayBuffer(); // eslint-disable-line no-new\n new $ArrayBuffer(1.5); // eslint-disable-line no-new\n new $ArrayBuffer(NaN); // eslint-disable-line no-new\n return $ArrayBuffer.name != ARRAY_BUFFER;\n })) {\n $ArrayBuffer = function ArrayBuffer(length) {\n anInstance(this, $ArrayBuffer);\n return new BaseBuffer(toIndex(length));\n };\n var ArrayBufferProto = $ArrayBuffer[PROTOTYPE] = BaseBuffer[PROTOTYPE];\n for (var keys = gOPN(BaseBuffer), j = 0, key; keys.length > j;) {\n if (!((key = keys[j++]) in $ArrayBuffer)) hide($ArrayBuffer, key, BaseBuffer[key]);\n }\n if (!LIBRARY) ArrayBufferProto.constructor = $ArrayBuffer;\n }\n // iOS Safari 7.x bug\n var view = new $DataView(new $ArrayBuffer(2));\n var $setInt8 = $DataView[PROTOTYPE].setInt8;\n view.setInt8(0, 2147483648);\n view.setInt8(1, 2147483649);\n if (view.getInt8(0) || !view.getInt8(1)) redefineAll($DataView[PROTOTYPE], {\n setInt8: function setInt8(byteOffset, value) {\n $setInt8.call(this, byteOffset, value << 24 >> 24);\n },\n setUint8: function setUint8(byteOffset, value) {\n $setInt8.call(this, byteOffset, value << 24 >> 24);\n }\n }, true);\n}\nsetToStringTag($ArrayBuffer, ARRAY_BUFFER);\nsetToStringTag($DataView, DATA_VIEW);\nhide($DataView[PROTOTYPE], $typed.VIEW, true);\nexports[ARRAY_BUFFER] = $ArrayBuffer;\nexports[DATA_VIEW] = $DataView;\n","var global = require('./_global');\nvar hide = require('./_hide');\nvar uid = require('./_uid');\nvar TYPED = uid('typed_array');\nvar VIEW = uid('view');\nvar ABV = !!(global.ArrayBuffer && global.DataView);\nvar CONSTR = ABV;\nvar i = 0;\nvar l = 9;\nvar Typed;\n\nvar TypedArrayConstructors = (\n 'Int8Array,Uint8Array,Uint8ClampedArray,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array'\n).split(',');\n\nwhile (i < l) {\n if (Typed = global[TypedArrayConstructors[i++]]) {\n hide(Typed.prototype, TYPED, true);\n hide(Typed.prototype, VIEW, true);\n } else CONSTR = false;\n}\n\nmodule.exports = {\n ABV: ABV,\n CONSTR: CONSTR,\n TYPED: TYPED,\n VIEW: VIEW\n};\n","var id = 0;\nvar px = Math.random();\nmodule.exports = function (key) {\n return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));\n};\n","var global = require('./_global');\nvar navigator = global.navigator;\n\nmodule.exports = navigator && navigator.userAgent || '';\n","var isObject = require('./_is-object');\nmodule.exports = function (it, TYPE) {\n if (!isObject(it) || it._t !== TYPE) throw TypeError('Incompatible receiver, ' + TYPE + ' required!');\n return it;\n};\n","var global = require('./_global');\nvar core = require('./_core');\nvar LIBRARY = require('./_library');\nvar wksExt = require('./_wks-ext');\nvar defineProperty = require('./_object-dp').f;\nmodule.exports = function (name) {\n var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});\n if (name.charAt(0) != '_' && !(name in $Symbol)) defineProperty($Symbol, name, { value: wksExt.f(name) });\n};\n","exports.f = require('./_wks');\n","var store = require('./_shared')('wks');\nvar uid = require('./_uid');\nvar Symbol = require('./_global').Symbol;\nvar USE_SYMBOL = typeof Symbol == 'function';\n\nvar $exports = module.exports = function (name) {\n return store[name] || (store[name] =\n USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : uid)('Symbol.' + name));\n};\n\n$exports.store = store;\n","var classof = require('./_classof');\nvar ITERATOR = require('./_wks')('iterator');\nvar Iterators = require('./_iterators');\nmodule.exports = require('./_core').getIteratorMethod = function (it) {\n if (it != undefined) return it[ITERATOR]\n || it['@@iterator']\n || Iterators[classof(it)];\n};\n","// https://github.com/benjamingr/RexExp.escape\nvar $export = require('./_export');\nvar $re = require('./_replacer')(/[\\\\^$*+?.()|[\\]{}]/g, '\\\\$&');\n\n$export($export.S, 'RegExp', { escape: function escape(it) { return $re(it); } });\n","// 22.1.3.3 Array.prototype.copyWithin(target, start, end = this.length)\nvar $export = require('./_export');\n\n$export($export.P, 'Array', { copyWithin: require('./_array-copy-within') });\n\nrequire('./_add-to-unscopables')('copyWithin');\n","'use strict';\nvar $export = require('./_export');\nvar $every = require('./_array-methods')(4);\n\n$export($export.P + $export.F * !require('./_strict-method')([].every, true), 'Array', {\n // 22.1.3.5 / 15.4.4.16 Array.prototype.every(callbackfn [, thisArg])\n every: function every(callbackfn /* , thisArg */) {\n return $every(this, callbackfn, arguments[1]);\n }\n});\n","// 22.1.3.6 Array.prototype.fill(value, start = 0, end = this.length)\nvar $export = require('./_export');\n\n$export($export.P, 'Array', { fill: require('./_array-fill') });\n\nrequire('./_add-to-unscopables')('fill');\n","'use strict';\nvar $export = require('./_export');\nvar $filter = require('./_array-methods')(2);\n\n$export($export.P + $export.F * !require('./_strict-method')([].filter, true), 'Array', {\n // 22.1.3.7 / 15.4.4.20 Array.prototype.filter(callbackfn [, thisArg])\n filter: function filter(callbackfn /* , thisArg */) {\n return $filter(this, callbackfn, arguments[1]);\n }\n});\n","'use strict';\n// 22.1.3.9 Array.prototype.findIndex(predicate, thisArg = undefined)\nvar $export = require('./_export');\nvar $find = require('./_array-methods')(6);\nvar KEY = 'findIndex';\nvar forced = true;\n// Shouldn't skip holes\nif (KEY in []) Array(1)[KEY](function () { forced = false; });\n$export($export.P + $export.F * forced, 'Array', {\n findIndex: function findIndex(callbackfn /* , that = undefined */) {\n return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\nrequire('./_add-to-unscopables')(KEY);\n","'use strict';\n// 22.1.3.8 Array.prototype.find(predicate, thisArg = undefined)\nvar $export = require('./_export');\nvar $find = require('./_array-methods')(5);\nvar KEY = 'find';\nvar forced = true;\n// Shouldn't skip holes\nif (KEY in []) Array(1)[KEY](function () { forced = false; });\n$export($export.P + $export.F * forced, 'Array', {\n find: function find(callbackfn /* , that = undefined */) {\n return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\nrequire('./_add-to-unscopables')(KEY);\n","'use strict';\nvar $export = require('./_export');\nvar $forEach = require('./_array-methods')(0);\nvar STRICT = require('./_strict-method')([].forEach, true);\n\n$export($export.P + $export.F * !STRICT, 'Array', {\n // 22.1.3.10 / 15.4.4.18 Array.prototype.forEach(callbackfn [, thisArg])\n forEach: function forEach(callbackfn /* , thisArg */) {\n return $forEach(this, callbackfn, arguments[1]);\n }\n});\n","'use strict';\nvar ctx = require('./_ctx');\nvar $export = require('./_export');\nvar toObject = require('./_to-object');\nvar call = require('./_iter-call');\nvar isArrayIter = require('./_is-array-iter');\nvar toLength = require('./_to-length');\nvar createProperty = require('./_create-property');\nvar getIterFn = require('./core.get-iterator-method');\n\n$export($export.S + $export.F * !require('./_iter-detect')(function (iter) { Array.from(iter); }), 'Array', {\n // 22.1.2.1 Array.from(arrayLike, mapfn = undefined, thisArg = undefined)\n from: function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {\n var O = toObject(arrayLike);\n var C = typeof this == 'function' ? this : Array;\n var aLen = arguments.length;\n var mapfn = aLen > 1 ? arguments[1] : undefined;\n var mapping = mapfn !== undefined;\n var index = 0;\n var iterFn = getIterFn(O);\n var length, result, step, iterator;\n if (mapping) mapfn = ctx(mapfn, aLen > 2 ? arguments[2] : undefined, 2);\n // if object isn't iterable or it's array with default iterator - use simple case\n if (iterFn != undefined && !(C == Array && isArrayIter(iterFn))) {\n for (iterator = iterFn.call(O), result = new C(); !(step = iterator.next()).done; index++) {\n createProperty(result, index, mapping ? call(iterator, mapfn, [step.value, index], true) : step.value);\n }\n } else {\n length = toLength(O.length);\n for (result = new C(length); length > index; index++) {\n createProperty(result, index, mapping ? mapfn(O[index], index) : O[index]);\n }\n }\n result.length = index;\n return result;\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar $indexOf = require('./_array-includes')(false);\nvar $native = [].indexOf;\nvar NEGATIVE_ZERO = !!$native && 1 / [1].indexOf(1, -0) < 0;\n\n$export($export.P + $export.F * (NEGATIVE_ZERO || !require('./_strict-method')($native)), 'Array', {\n // 22.1.3.11 / 15.4.4.14 Array.prototype.indexOf(searchElement [, fromIndex])\n indexOf: function indexOf(searchElement /* , fromIndex = 0 */) {\n return NEGATIVE_ZERO\n // convert -0 to +0\n ? $native.apply(this, arguments) || 0\n : $indexOf(this, searchElement, arguments[1]);\n }\n});\n","// 22.1.2.2 / 15.4.3.2 Array.isArray(arg)\nvar $export = require('./_export');\n\n$export($export.S, 'Array', { isArray: require('./_is-array') });\n","'use strict';\nvar addToUnscopables = require('./_add-to-unscopables');\nvar step = require('./_iter-step');\nvar Iterators = require('./_iterators');\nvar toIObject = require('./_to-iobject');\n\n// 22.1.3.4 Array.prototype.entries()\n// 22.1.3.13 Array.prototype.keys()\n// 22.1.3.29 Array.prototype.values()\n// 22.1.3.30 Array.prototype[@@iterator]()\nmodule.exports = require('./_iter-define')(Array, 'Array', function (iterated, kind) {\n this._t = toIObject(iterated); // target\n this._i = 0; // next index\n this._k = kind; // kind\n// 22.1.5.2.1 %ArrayIteratorPrototype%.next()\n}, function () {\n var O = this._t;\n var kind = this._k;\n var index = this._i++;\n if (!O || index >= O.length) {\n this._t = undefined;\n return step(1);\n }\n if (kind == 'keys') return step(0, index);\n if (kind == 'values') return step(0, O[index]);\n return step(0, [index, O[index]]);\n}, 'values');\n\n// argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)\nIterators.Arguments = Iterators.Array;\n\naddToUnscopables('keys');\naddToUnscopables('values');\naddToUnscopables('entries');\n","'use strict';\n// 22.1.3.13 Array.prototype.join(separator)\nvar $export = require('./_export');\nvar toIObject = require('./_to-iobject');\nvar arrayJoin = [].join;\n\n// fallback for not array-like strings\n$export($export.P + $export.F * (require('./_iobject') != Object || !require('./_strict-method')(arrayJoin)), 'Array', {\n join: function join(separator) {\n return arrayJoin.call(toIObject(this), separator === undefined ? ',' : separator);\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar toIObject = require('./_to-iobject');\nvar toInteger = require('./_to-integer');\nvar toLength = require('./_to-length');\nvar $native = [].lastIndexOf;\nvar NEGATIVE_ZERO = !!$native && 1 / [1].lastIndexOf(1, -0) < 0;\n\n$export($export.P + $export.F * (NEGATIVE_ZERO || !require('./_strict-method')($native)), 'Array', {\n // 22.1.3.14 / 15.4.4.15 Array.prototype.lastIndexOf(searchElement [, fromIndex])\n lastIndexOf: function lastIndexOf(searchElement /* , fromIndex = @[*-1] */) {\n // convert -0 to +0\n if (NEGATIVE_ZERO) return $native.apply(this, arguments) || 0;\n var O = toIObject(this);\n var length = toLength(O.length);\n var index = length - 1;\n if (arguments.length > 1) index = Math.min(index, toInteger(arguments[1]));\n if (index < 0) index = length + index;\n for (;index >= 0; index--) if (index in O) if (O[index] === searchElement) return index || 0;\n return -1;\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar $map = require('./_array-methods')(1);\n\n$export($export.P + $export.F * !require('./_strict-method')([].map, true), 'Array', {\n // 22.1.3.15 / 15.4.4.19 Array.prototype.map(callbackfn [, thisArg])\n map: function map(callbackfn /* , thisArg */) {\n return $map(this, callbackfn, arguments[1]);\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar createProperty = require('./_create-property');\n\n// WebKit Array.of isn't generic\n$export($export.S + $export.F * require('./_fails')(function () {\n function F() { /* empty */ }\n return !(Array.of.call(F) instanceof F);\n}), 'Array', {\n // 22.1.2.3 Array.of( ...items)\n of: function of(/* ...args */) {\n var index = 0;\n var aLen = arguments.length;\n var result = new (typeof this == 'function' ? this : Array)(aLen);\n while (aLen > index) createProperty(result, index, arguments[index++]);\n result.length = aLen;\n return result;\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar $reduce = require('./_array-reduce');\n\n$export($export.P + $export.F * !require('./_strict-method')([].reduceRight, true), 'Array', {\n // 22.1.3.19 / 15.4.4.22 Array.prototype.reduceRight(callbackfn [, initialValue])\n reduceRight: function reduceRight(callbackfn /* , initialValue */) {\n return $reduce(this, callbackfn, arguments.length, arguments[1], true);\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar $reduce = require('./_array-reduce');\n\n$export($export.P + $export.F * !require('./_strict-method')([].reduce, true), 'Array', {\n // 22.1.3.18 / 15.4.4.21 Array.prototype.reduce(callbackfn [, initialValue])\n reduce: function reduce(callbackfn /* , initialValue */) {\n return $reduce(this, callbackfn, arguments.length, arguments[1], false);\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar html = require('./_html');\nvar cof = require('./_cof');\nvar toAbsoluteIndex = require('./_to-absolute-index');\nvar toLength = require('./_to-length');\nvar arraySlice = [].slice;\n\n// fallback for not array-like ES3 strings and DOM objects\n$export($export.P + $export.F * require('./_fails')(function () {\n if (html) arraySlice.call(html);\n}), 'Array', {\n slice: function slice(begin, end) {\n var len = toLength(this.length);\n var klass = cof(this);\n end = end === undefined ? len : end;\n if (klass == 'Array') return arraySlice.call(this, begin, end);\n var start = toAbsoluteIndex(begin, len);\n var upTo = toAbsoluteIndex(end, len);\n var size = toLength(upTo - start);\n var cloned = new Array(size);\n var i = 0;\n for (; i < size; i++) cloned[i] = klass == 'String'\n ? this.charAt(start + i)\n : this[start + i];\n return cloned;\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar $some = require('./_array-methods')(3);\n\n$export($export.P + $export.F * !require('./_strict-method')([].some, true), 'Array', {\n // 22.1.3.23 / 15.4.4.17 Array.prototype.some(callbackfn [, thisArg])\n some: function some(callbackfn /* , thisArg */) {\n return $some(this, callbackfn, arguments[1]);\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar aFunction = require('./_a-function');\nvar toObject = require('./_to-object');\nvar fails = require('./_fails');\nvar $sort = [].sort;\nvar test = [1, 2, 3];\n\n$export($export.P + $export.F * (fails(function () {\n // IE8-\n test.sort(undefined);\n}) || !fails(function () {\n // V8 bug\n test.sort(null);\n // Old WebKit\n}) || !require('./_strict-method')($sort)), 'Array', {\n // 22.1.3.25 Array.prototype.sort(comparefn)\n sort: function sort(comparefn) {\n return comparefn === undefined\n ? $sort.call(toObject(this))\n : $sort.call(toObject(this), aFunction(comparefn));\n }\n});\n","require('./_set-species')('Array');\n","// 20.3.3.1 / 15.9.4.4 Date.now()\nvar $export = require('./_export');\n\n$export($export.S, 'Date', { now: function () { return new Date().getTime(); } });\n","// 20.3.4.36 / 15.9.5.43 Date.prototype.toISOString()\nvar $export = require('./_export');\nvar toISOString = require('./_date-to-iso-string');\n\n// PhantomJS / old WebKit has a broken implementations\n$export($export.P + $export.F * (Date.prototype.toISOString !== toISOString), 'Date', {\n toISOString: toISOString\n});\n","'use strict';\nvar $export = require('./_export');\nvar toObject = require('./_to-object');\nvar toPrimitive = require('./_to-primitive');\n\n$export($export.P + $export.F * require('./_fails')(function () {\n return new Date(NaN).toJSON() !== null\n || Date.prototype.toJSON.call({ toISOString: function () { return 1; } }) !== 1;\n}), 'Date', {\n // eslint-disable-next-line no-unused-vars\n toJSON: function toJSON(key) {\n var O = toObject(this);\n var pv = toPrimitive(O);\n return typeof pv == 'number' && !isFinite(pv) ? null : O.toISOString();\n }\n});\n","var TO_PRIMITIVE = require('./_wks')('toPrimitive');\nvar proto = Date.prototype;\n\nif (!(TO_PRIMITIVE in proto)) require('./_hide')(proto, TO_PRIMITIVE, require('./_date-to-primitive'));\n","var DateProto = Date.prototype;\nvar INVALID_DATE = 'Invalid Date';\nvar TO_STRING = 'toString';\nvar $toString = DateProto[TO_STRING];\nvar getTime = DateProto.getTime;\nif (new Date(NaN) + '' != INVALID_DATE) {\n require('./_redefine')(DateProto, TO_STRING, function toString() {\n var value = getTime.call(this);\n // eslint-disable-next-line no-self-compare\n return value === value ? $toString.call(this) : INVALID_DATE;\n });\n}\n","// 19.2.3.2 / 15.3.4.5 Function.prototype.bind(thisArg, args...)\nvar $export = require('./_export');\n\n$export($export.P, 'Function', { bind: require('./_bind') });\n","'use strict';\nvar isObject = require('./_is-object');\nvar getPrototypeOf = require('./_object-gpo');\nvar HAS_INSTANCE = require('./_wks')('hasInstance');\nvar FunctionProto = Function.prototype;\n// 19.2.3.6 Function.prototype[@@hasInstance](V)\nif (!(HAS_INSTANCE in FunctionProto)) require('./_object-dp').f(FunctionProto, HAS_INSTANCE, { value: function (O) {\n if (typeof this != 'function' || !isObject(O)) return false;\n if (!isObject(this.prototype)) return O instanceof this;\n // for environment w/o native `@@hasInstance` logic enough `instanceof`, but add this:\n while (O = getPrototypeOf(O)) if (this.prototype === O) return true;\n return false;\n} });\n","var dP = require('./_object-dp').f;\nvar FProto = Function.prototype;\nvar nameRE = /^\\s*function ([^ (]*)/;\nvar NAME = 'name';\n\n// 19.2.4.2 name\nNAME in FProto || require('./_descriptors') && dP(FProto, NAME, {\n configurable: true,\n get: function () {\n try {\n return ('' + this).match(nameRE)[1];\n } catch (e) {\n return '';\n }\n }\n});\n","'use strict';\nvar strong = require('./_collection-strong');\nvar validate = require('./_validate-collection');\nvar MAP = 'Map';\n\n// 23.1 Map Objects\nmodule.exports = require('./_collection')(MAP, function (get) {\n return function Map() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };\n}, {\n // 23.1.3.6 Map.prototype.get(key)\n get: function get(key) {\n var entry = strong.getEntry(validate(this, MAP), key);\n return entry && entry.v;\n },\n // 23.1.3.9 Map.prototype.set(key, value)\n set: function set(key, value) {\n return strong.def(validate(this, MAP), key === 0 ? 0 : key, value);\n }\n}, strong, true);\n","// 20.2.2.3 Math.acosh(x)\nvar $export = require('./_export');\nvar log1p = require('./_math-log1p');\nvar sqrt = Math.sqrt;\nvar $acosh = Math.acosh;\n\n$export($export.S + $export.F * !($acosh\n // V8 bug: https://code.google.com/p/v8/issues/detail?id=3509\n && Math.floor($acosh(Number.MAX_VALUE)) == 710\n // Tor Browser bug: Math.acosh(Infinity) -> NaN\n && $acosh(Infinity) == Infinity\n), 'Math', {\n acosh: function acosh(x) {\n return (x = +x) < 1 ? NaN : x > 94906265.62425156\n ? Math.log(x) + Math.LN2\n : log1p(x - 1 + sqrt(x - 1) * sqrt(x + 1));\n }\n});\n","// 20.2.2.5 Math.asinh(x)\nvar $export = require('./_export');\nvar $asinh = Math.asinh;\n\nfunction asinh(x) {\n return !isFinite(x = +x) || x == 0 ? x : x < 0 ? -asinh(-x) : Math.log(x + Math.sqrt(x * x + 1));\n}\n\n// Tor Browser bug: Math.asinh(0) -> -0\n$export($export.S + $export.F * !($asinh && 1 / $asinh(0) > 0), 'Math', { asinh: asinh });\n","// 20.2.2.7 Math.atanh(x)\nvar $export = require('./_export');\nvar $atanh = Math.atanh;\n\n// Tor Browser bug: Math.atanh(-0) -> 0\n$export($export.S + $export.F * !($atanh && 1 / $atanh(-0) < 0), 'Math', {\n atanh: function atanh(x) {\n return (x = +x) == 0 ? x : Math.log((1 + x) / (1 - x)) / 2;\n }\n});\n","// 20.2.2.9 Math.cbrt(x)\nvar $export = require('./_export');\nvar sign = require('./_math-sign');\n\n$export($export.S, 'Math', {\n cbrt: function cbrt(x) {\n return sign(x = +x) * Math.pow(Math.abs(x), 1 / 3);\n }\n});\n","// 20.2.2.11 Math.clz32(x)\nvar $export = require('./_export');\n\n$export($export.S, 'Math', {\n clz32: function clz32(x) {\n return (x >>>= 0) ? 31 - Math.floor(Math.log(x + 0.5) * Math.LOG2E) : 32;\n }\n});\n","// 20.2.2.12 Math.cosh(x)\nvar $export = require('./_export');\nvar exp = Math.exp;\n\n$export($export.S, 'Math', {\n cosh: function cosh(x) {\n return (exp(x = +x) + exp(-x)) / 2;\n }\n});\n","// 20.2.2.14 Math.expm1(x)\nvar $export = require('./_export');\nvar $expm1 = require('./_math-expm1');\n\n$export($export.S + $export.F * ($expm1 != Math.expm1), 'Math', { expm1: $expm1 });\n","// 20.2.2.16 Math.fround(x)\nvar $export = require('./_export');\n\n$export($export.S, 'Math', { fround: require('./_math-fround') });\n","// 20.2.2.17 Math.hypot([value1[, value2[, … ]]])\nvar $export = require('./_export');\nvar abs = Math.abs;\n\n$export($export.S, 'Math', {\n hypot: function hypot(value1, value2) { // eslint-disable-line no-unused-vars\n var sum = 0;\n var i = 0;\n var aLen = arguments.length;\n var larg = 0;\n var arg, div;\n while (i < aLen) {\n arg = abs(arguments[i++]);\n if (larg < arg) {\n div = larg / arg;\n sum = sum * div * div + 1;\n larg = arg;\n } else if (arg > 0) {\n div = arg / larg;\n sum += div * div;\n } else sum += arg;\n }\n return larg === Infinity ? Infinity : larg * Math.sqrt(sum);\n }\n});\n","// 20.2.2.18 Math.imul(x, y)\nvar $export = require('./_export');\nvar $imul = Math.imul;\n\n// some WebKit versions fails with big numbers, some has wrong arity\n$export($export.S + $export.F * require('./_fails')(function () {\n return $imul(0xffffffff, 5) != -5 || $imul.length != 2;\n}), 'Math', {\n imul: function imul(x, y) {\n var UINT16 = 0xffff;\n var xn = +x;\n var yn = +y;\n var xl = UINT16 & xn;\n var yl = UINT16 & yn;\n return 0 | xl * yl + ((UINT16 & xn >>> 16) * yl + xl * (UINT16 & yn >>> 16) << 16 >>> 0);\n }\n});\n","// 20.2.2.21 Math.log10(x)\nvar $export = require('./_export');\n\n$export($export.S, 'Math', {\n log10: function log10(x) {\n return Math.log(x) * Math.LOG10E;\n }\n});\n","// 20.2.2.20 Math.log1p(x)\nvar $export = require('./_export');\n\n$export($export.S, 'Math', { log1p: require('./_math-log1p') });\n","// 20.2.2.22 Math.log2(x)\nvar $export = require('./_export');\n\n$export($export.S, 'Math', {\n log2: function log2(x) {\n return Math.log(x) / Math.LN2;\n }\n});\n","// 20.2.2.28 Math.sign(x)\nvar $export = require('./_export');\n\n$export($export.S, 'Math', { sign: require('./_math-sign') });\n","// 20.2.2.30 Math.sinh(x)\nvar $export = require('./_export');\nvar expm1 = require('./_math-expm1');\nvar exp = Math.exp;\n\n// V8 near Chromium 38 has a problem with very small numbers\n$export($export.S + $export.F * require('./_fails')(function () {\n return !Math.sinh(-2e-17) != -2e-17;\n}), 'Math', {\n sinh: function sinh(x) {\n return Math.abs(x = +x) < 1\n ? (expm1(x) - expm1(-x)) / 2\n : (exp(x - 1) - exp(-x - 1)) * (Math.E / 2);\n }\n});\n","// 20.2.2.33 Math.tanh(x)\nvar $export = require('./_export');\nvar expm1 = require('./_math-expm1');\nvar exp = Math.exp;\n\n$export($export.S, 'Math', {\n tanh: function tanh(x) {\n var a = expm1(x = +x);\n var b = expm1(-x);\n return a == Infinity ? 1 : b == Infinity ? -1 : (a - b) / (exp(x) + exp(-x));\n }\n});\n","// 20.2.2.34 Math.trunc(x)\nvar $export = require('./_export');\n\n$export($export.S, 'Math', {\n trunc: function trunc(it) {\n return (it > 0 ? Math.floor : Math.ceil)(it);\n }\n});\n","'use strict';\nvar global = require('./_global');\nvar has = require('./_has');\nvar cof = require('./_cof');\nvar inheritIfRequired = require('./_inherit-if-required');\nvar toPrimitive = require('./_to-primitive');\nvar fails = require('./_fails');\nvar gOPN = require('./_object-gopn').f;\nvar gOPD = require('./_object-gopd').f;\nvar dP = require('./_object-dp').f;\nvar $trim = require('./_string-trim').trim;\nvar NUMBER = 'Number';\nvar $Number = global[NUMBER];\nvar Base = $Number;\nvar proto = $Number.prototype;\n// Opera ~12 has broken Object#toString\nvar BROKEN_COF = cof(require('./_object-create')(proto)) == NUMBER;\nvar TRIM = 'trim' in String.prototype;\n\n// 7.1.3 ToNumber(argument)\nvar toNumber = function (argument) {\n var it = toPrimitive(argument, false);\n if (typeof it == 'string' && it.length > 2) {\n it = TRIM ? it.trim() : $trim(it, 3);\n var first = it.charCodeAt(0);\n var third, radix, maxCode;\n if (first === 43 || first === 45) {\n third = it.charCodeAt(2);\n if (third === 88 || third === 120) return NaN; // Number('+0x1') should be NaN, old V8 fix\n } else if (first === 48) {\n switch (it.charCodeAt(1)) {\n case 66: case 98: radix = 2; maxCode = 49; break; // fast equal /^0b[01]+$/i\n case 79: case 111: radix = 8; maxCode = 55; break; // fast equal /^0o[0-7]+$/i\n default: return +it;\n }\n for (var digits = it.slice(2), i = 0, l = digits.length, code; i < l; i++) {\n code = digits.charCodeAt(i);\n // parseInt parses a string to a first unavailable symbol\n // but ToNumber should return NaN if a string contains unavailable symbols\n if (code < 48 || code > maxCode) return NaN;\n } return parseInt(digits, radix);\n }\n } return +it;\n};\n\nif (!$Number(' 0o1') || !$Number('0b1') || $Number('+0x1')) {\n $Number = function Number(value) {\n var it = arguments.length < 1 ? 0 : value;\n var that = this;\n return that instanceof $Number\n // check on 1..constructor(foo) case\n && (BROKEN_COF ? fails(function () { proto.valueOf.call(that); }) : cof(that) != NUMBER)\n ? inheritIfRequired(new Base(toNumber(it)), that, $Number) : toNumber(it);\n };\n for (var keys = require('./_descriptors') ? gOPN(Base) : (\n // ES3:\n 'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +\n // ES6 (in case, if modules with ES6 Number statics required before):\n 'EPSILON,isFinite,isInteger,isNaN,isSafeInteger,MAX_SAFE_INTEGER,' +\n 'MIN_SAFE_INTEGER,parseFloat,parseInt,isInteger'\n ).split(','), j = 0, key; keys.length > j; j++) {\n if (has(Base, key = keys[j]) && !has($Number, key)) {\n dP($Number, key, gOPD(Base, key));\n }\n }\n $Number.prototype = proto;\n proto.constructor = $Number;\n require('./_redefine')(global, NUMBER, $Number);\n}\n","// 20.1.2.1 Number.EPSILON\nvar $export = require('./_export');\n\n$export($export.S, 'Number', { EPSILON: Math.pow(2, -52) });\n","// 20.1.2.2 Number.isFinite(number)\nvar $export = require('./_export');\nvar _isFinite = require('./_global').isFinite;\n\n$export($export.S, 'Number', {\n isFinite: function isFinite(it) {\n return typeof it == 'number' && _isFinite(it);\n }\n});\n","// 20.1.2.3 Number.isInteger(number)\nvar $export = require('./_export');\n\n$export($export.S, 'Number', { isInteger: require('./_is-integer') });\n","// 20.1.2.4 Number.isNaN(number)\nvar $export = require('./_export');\n\n$export($export.S, 'Number', {\n isNaN: function isNaN(number) {\n // eslint-disable-next-line no-self-compare\n return number != number;\n }\n});\n","// 20.1.2.5 Number.isSafeInteger(number)\nvar $export = require('./_export');\nvar isInteger = require('./_is-integer');\nvar abs = Math.abs;\n\n$export($export.S, 'Number', {\n isSafeInteger: function isSafeInteger(number) {\n return isInteger(number) && abs(number) <= 0x1fffffffffffff;\n }\n});\n","// 20.1.2.6 Number.MAX_SAFE_INTEGER\nvar $export = require('./_export');\n\n$export($export.S, 'Number', { MAX_SAFE_INTEGER: 0x1fffffffffffff });\n","// 20.1.2.10 Number.MIN_SAFE_INTEGER\nvar $export = require('./_export');\n\n$export($export.S, 'Number', { MIN_SAFE_INTEGER: -0x1fffffffffffff });\n","var $export = require('./_export');\nvar $parseFloat = require('./_parse-float');\n// 20.1.2.12 Number.parseFloat(string)\n$export($export.S + $export.F * (Number.parseFloat != $parseFloat), 'Number', { parseFloat: $parseFloat });\n","var $export = require('./_export');\nvar $parseInt = require('./_parse-int');\n// 20.1.2.13 Number.parseInt(string, radix)\n$export($export.S + $export.F * (Number.parseInt != $parseInt), 'Number', { parseInt: $parseInt });\n","'use strict';\nvar $export = require('./_export');\nvar toInteger = require('./_to-integer');\nvar aNumberValue = require('./_a-number-value');\nvar repeat = require('./_string-repeat');\nvar $toFixed = 1.0.toFixed;\nvar floor = Math.floor;\nvar data = [0, 0, 0, 0, 0, 0];\nvar ERROR = 'Number.toFixed: incorrect invocation!';\nvar ZERO = '0';\n\nvar multiply = function (n, c) {\n var i = -1;\n var c2 = c;\n while (++i < 6) {\n c2 += n * data[i];\n data[i] = c2 % 1e7;\n c2 = floor(c2 / 1e7);\n }\n};\nvar divide = function (n) {\n var i = 6;\n var c = 0;\n while (--i >= 0) {\n c += data[i];\n data[i] = floor(c / n);\n c = (c % n) * 1e7;\n }\n};\nvar numToString = function () {\n var i = 6;\n var s = '';\n while (--i >= 0) {\n if (s !== '' || i === 0 || data[i] !== 0) {\n var t = String(data[i]);\n s = s === '' ? t : s + repeat.call(ZERO, 7 - t.length) + t;\n }\n } return s;\n};\nvar pow = function (x, n, acc) {\n return n === 0 ? acc : n % 2 === 1 ? pow(x, n - 1, acc * x) : pow(x * x, n / 2, acc);\n};\nvar log = function (x) {\n var n = 0;\n var x2 = x;\n while (x2 >= 4096) {\n n += 12;\n x2 /= 4096;\n }\n while (x2 >= 2) {\n n += 1;\n x2 /= 2;\n } return n;\n};\n\n$export($export.P + $export.F * (!!$toFixed && (\n 0.00008.toFixed(3) !== '0.000' ||\n 0.9.toFixed(0) !== '1' ||\n 1.255.toFixed(2) !== '1.25' ||\n 1000000000000000128.0.toFixed(0) !== '1000000000000000128'\n) || !require('./_fails')(function () {\n // V8 ~ Android 4.3-\n $toFixed.call({});\n})), 'Number', {\n toFixed: function toFixed(fractionDigits) {\n var x = aNumberValue(this, ERROR);\n var f = toInteger(fractionDigits);\n var s = '';\n var m = ZERO;\n var e, z, j, k;\n if (f < 0 || f > 20) throw RangeError(ERROR);\n // eslint-disable-next-line no-self-compare\n if (x != x) return 'NaN';\n if (x <= -1e21 || x >= 1e21) return String(x);\n if (x < 0) {\n s = '-';\n x = -x;\n }\n if (x > 1e-21) {\n e = log(x * pow(2, 69, 1)) - 69;\n z = e < 0 ? x * pow(2, -e, 1) : x / pow(2, e, 1);\n z *= 0x10000000000000;\n e = 52 - e;\n if (e > 0) {\n multiply(0, z);\n j = f;\n while (j >= 7) {\n multiply(1e7, 0);\n j -= 7;\n }\n multiply(pow(10, j, 1), 0);\n j = e - 1;\n while (j >= 23) {\n divide(1 << 23);\n j -= 23;\n }\n divide(1 << j);\n multiply(1, 1);\n divide(2);\n m = numToString();\n } else {\n multiply(0, z);\n multiply(1 << -e, 0);\n m = numToString() + repeat.call(ZERO, f);\n }\n }\n if (f > 0) {\n k = m.length;\n m = s + (k <= f ? '0.' + repeat.call(ZERO, f - k) + m : m.slice(0, k - f) + '.' + m.slice(k - f));\n } else {\n m = s + m;\n } return m;\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar $fails = require('./_fails');\nvar aNumberValue = require('./_a-number-value');\nvar $toPrecision = 1.0.toPrecision;\n\n$export($export.P + $export.F * ($fails(function () {\n // IE7-\n return $toPrecision.call(1, undefined) !== '1';\n}) || !$fails(function () {\n // V8 ~ Android 4.3-\n $toPrecision.call({});\n})), 'Number', {\n toPrecision: function toPrecision(precision) {\n var that = aNumberValue(this, 'Number#toPrecision: incorrect invocation!');\n return precision === undefined ? $toPrecision.call(that) : $toPrecision.call(that, precision);\n }\n});\n","// 19.1.3.1 Object.assign(target, source)\nvar $export = require('./_export');\n\n$export($export.S + $export.F, 'Object', { assign: require('./_object-assign') });\n","var $export = require('./_export');\n// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])\n$export($export.S, 'Object', { create: require('./_object-create') });\n","var $export = require('./_export');\n// 19.1.2.3 / 15.2.3.7 Object.defineProperties(O, Properties)\n$export($export.S + $export.F * !require('./_descriptors'), 'Object', { defineProperties: require('./_object-dps') });\n","var $export = require('./_export');\n// 19.1.2.4 / 15.2.3.6 Object.defineProperty(O, P, Attributes)\n$export($export.S + $export.F * !require('./_descriptors'), 'Object', { defineProperty: require('./_object-dp').f });\n","// 19.1.2.5 Object.freeze(O)\nvar isObject = require('./_is-object');\nvar meta = require('./_meta').onFreeze;\n\nrequire('./_object-sap')('freeze', function ($freeze) {\n return function freeze(it) {\n return $freeze && isObject(it) ? $freeze(meta(it)) : it;\n };\n});\n","// 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)\nvar toIObject = require('./_to-iobject');\nvar $getOwnPropertyDescriptor = require('./_object-gopd').f;\n\nrequire('./_object-sap')('getOwnPropertyDescriptor', function () {\n return function getOwnPropertyDescriptor(it, key) {\n return $getOwnPropertyDescriptor(toIObject(it), key);\n };\n});\n","// 19.1.2.7 Object.getOwnPropertyNames(O)\nrequire('./_object-sap')('getOwnPropertyNames', function () {\n return require('./_object-gopn-ext').f;\n});\n","// 19.1.2.9 Object.getPrototypeOf(O)\nvar toObject = require('./_to-object');\nvar $getPrototypeOf = require('./_object-gpo');\n\nrequire('./_object-sap')('getPrototypeOf', function () {\n return function getPrototypeOf(it) {\n return $getPrototypeOf(toObject(it));\n };\n});\n","// 19.1.2.11 Object.isExtensible(O)\nvar isObject = require('./_is-object');\n\nrequire('./_object-sap')('isExtensible', function ($isExtensible) {\n return function isExtensible(it) {\n return isObject(it) ? $isExtensible ? $isExtensible(it) : true : false;\n };\n});\n","// 19.1.2.12 Object.isFrozen(O)\nvar isObject = require('./_is-object');\n\nrequire('./_object-sap')('isFrozen', function ($isFrozen) {\n return function isFrozen(it) {\n return isObject(it) ? $isFrozen ? $isFrozen(it) : false : true;\n };\n});\n","// 19.1.2.13 Object.isSealed(O)\nvar isObject = require('./_is-object');\n\nrequire('./_object-sap')('isSealed', function ($isSealed) {\n return function isSealed(it) {\n return isObject(it) ? $isSealed ? $isSealed(it) : false : true;\n };\n});\n","// 19.1.3.10 Object.is(value1, value2)\nvar $export = require('./_export');\n$export($export.S, 'Object', { is: require('./_same-value') });\n","// 19.1.2.14 Object.keys(O)\nvar toObject = require('./_to-object');\nvar $keys = require('./_object-keys');\n\nrequire('./_object-sap')('keys', function () {\n return function keys(it) {\n return $keys(toObject(it));\n };\n});\n","// 19.1.2.15 Object.preventExtensions(O)\nvar isObject = require('./_is-object');\nvar meta = require('./_meta').onFreeze;\n\nrequire('./_object-sap')('preventExtensions', function ($preventExtensions) {\n return function preventExtensions(it) {\n return $preventExtensions && isObject(it) ? $preventExtensions(meta(it)) : it;\n };\n});\n","// 19.1.2.17 Object.seal(O)\nvar isObject = require('./_is-object');\nvar meta = require('./_meta').onFreeze;\n\nrequire('./_object-sap')('seal', function ($seal) {\n return function seal(it) {\n return $seal && isObject(it) ? $seal(meta(it)) : it;\n };\n});\n","// 19.1.3.19 Object.setPrototypeOf(O, proto)\nvar $export = require('./_export');\n$export($export.S, 'Object', { setPrototypeOf: require('./_set-proto').set });\n","'use strict';\n// 19.1.3.6 Object.prototype.toString()\nvar classof = require('./_classof');\nvar test = {};\ntest[require('./_wks')('toStringTag')] = 'z';\nif (test + '' != '[object z]') {\n require('./_redefine')(Object.prototype, 'toString', function toString() {\n return '[object ' + classof(this) + ']';\n }, true);\n}\n","var $export = require('./_export');\nvar $parseFloat = require('./_parse-float');\n// 18.2.4 parseFloat(string)\n$export($export.G + $export.F * (parseFloat != $parseFloat), { parseFloat: $parseFloat });\n","var $export = require('./_export');\nvar $parseInt = require('./_parse-int');\n// 18.2.5 parseInt(string, radix)\n$export($export.G + $export.F * (parseInt != $parseInt), { parseInt: $parseInt });\n","'use strict';\nvar LIBRARY = require('./_library');\nvar global = require('./_global');\nvar ctx = require('./_ctx');\nvar classof = require('./_classof');\nvar $export = require('./_export');\nvar isObject = require('./_is-object');\nvar aFunction = require('./_a-function');\nvar anInstance = require('./_an-instance');\nvar forOf = require('./_for-of');\nvar speciesConstructor = require('./_species-constructor');\nvar task = require('./_task').set;\nvar microtask = require('./_microtask')();\nvar newPromiseCapabilityModule = require('./_new-promise-capability');\nvar perform = require('./_perform');\nvar userAgent = require('./_user-agent');\nvar promiseResolve = require('./_promise-resolve');\nvar PROMISE = 'Promise';\nvar TypeError = global.TypeError;\nvar process = global.process;\nvar versions = process && process.versions;\nvar v8 = versions && versions.v8 || '';\nvar $Promise = global[PROMISE];\nvar isNode = classof(process) == 'process';\nvar empty = function () { /* empty */ };\nvar Internal, newGenericPromiseCapability, OwnPromiseCapability, Wrapper;\nvar newPromiseCapability = newGenericPromiseCapability = newPromiseCapabilityModule.f;\n\nvar USE_NATIVE = !!function () {\n try {\n // correct subclassing with @@species support\n var promise = $Promise.resolve(1);\n var FakePromise = (promise.constructor = {})[require('./_wks')('species')] = function (exec) {\n exec(empty, empty);\n };\n // unhandled rejections tracking support, NodeJS Promise without it fails @@species test\n return (isNode || typeof PromiseRejectionEvent == 'function')\n && promise.then(empty) instanceof FakePromise\n // v8 6.6 (Node 10 and Chrome 66) have a bug with resolving custom thenables\n // https://bugs.chromium.org/p/chromium/issues/detail?id=830565\n // we can't detect it synchronously, so just check versions\n && v8.indexOf('6.6') !== 0\n && userAgent.indexOf('Chrome/66') === -1;\n } catch (e) { /* empty */ }\n}();\n\n// helpers\nvar isThenable = function (it) {\n var then;\n return isObject(it) && typeof (then = it.then) == 'function' ? then : false;\n};\nvar notify = function (promise, isReject) {\n if (promise._n) return;\n promise._n = true;\n var chain = promise._c;\n microtask(function () {\n var value = promise._v;\n var ok = promise._s == 1;\n var i = 0;\n var run = function (reaction) {\n var handler = ok ? reaction.ok : reaction.fail;\n var resolve = reaction.resolve;\n var reject = reaction.reject;\n var domain = reaction.domain;\n var result, then, exited;\n try {\n if (handler) {\n if (!ok) {\n if (promise._h == 2) onHandleUnhandled(promise);\n promise._h = 1;\n }\n if (handler === true) result = value;\n else {\n if (domain) domain.enter();\n result = handler(value); // may throw\n if (domain) {\n domain.exit();\n exited = true;\n }\n }\n if (result === reaction.promise) {\n reject(TypeError('Promise-chain cycle'));\n } else if (then = isThenable(result)) {\n then.call(result, resolve, reject);\n } else resolve(result);\n } else reject(value);\n } catch (e) {\n if (domain && !exited) domain.exit();\n reject(e);\n }\n };\n while (chain.length > i) run(chain[i++]); // variable length - can't use forEach\n promise._c = [];\n promise._n = false;\n if (isReject && !promise._h) onUnhandled(promise);\n });\n};\nvar onUnhandled = function (promise) {\n task.call(global, function () {\n var value = promise._v;\n var unhandled = isUnhandled(promise);\n var result, handler, console;\n if (unhandled) {\n result = perform(function () {\n if (isNode) {\n process.emit('unhandledRejection', value, promise);\n } else if (handler = global.onunhandledrejection) {\n handler({ promise: promise, reason: value });\n } else if ((console = global.console) && console.error) {\n console.error('Unhandled promise rejection', value);\n }\n });\n // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should\n promise._h = isNode || isUnhandled(promise) ? 2 : 1;\n } promise._a = undefined;\n if (unhandled && result.e) throw result.v;\n });\n};\nvar isUnhandled = function (promise) {\n return promise._h !== 1 && (promise._a || promise._c).length === 0;\n};\nvar onHandleUnhandled = function (promise) {\n task.call(global, function () {\n var handler;\n if (isNode) {\n process.emit('rejectionHandled', promise);\n } else if (handler = global.onrejectionhandled) {\n handler({ promise: promise, reason: promise._v });\n }\n });\n};\nvar $reject = function (value) {\n var promise = this;\n if (promise._d) return;\n promise._d = true;\n promise = promise._w || promise; // unwrap\n promise._v = value;\n promise._s = 2;\n if (!promise._a) promise._a = promise._c.slice();\n notify(promise, true);\n};\nvar $resolve = function (value) {\n var promise = this;\n var then;\n if (promise._d) return;\n promise._d = true;\n promise = promise._w || promise; // unwrap\n try {\n if (promise === value) throw TypeError(\"Promise can't be resolved itself\");\n if (then = isThenable(value)) {\n microtask(function () {\n var wrapper = { _w: promise, _d: false }; // wrap\n try {\n then.call(value, ctx($resolve, wrapper, 1), ctx($reject, wrapper, 1));\n } catch (e) {\n $reject.call(wrapper, e);\n }\n });\n } else {\n promise._v = value;\n promise._s = 1;\n notify(promise, false);\n }\n } catch (e) {\n $reject.call({ _w: promise, _d: false }, e); // wrap\n }\n};\n\n// constructor polyfill\nif (!USE_NATIVE) {\n // 25.4.3.1 Promise(executor)\n $Promise = function Promise(executor) {\n anInstance(this, $Promise, PROMISE, '_h');\n aFunction(executor);\n Internal.call(this);\n try {\n executor(ctx($resolve, this, 1), ctx($reject, this, 1));\n } catch (err) {\n $reject.call(this, err);\n }\n };\n // eslint-disable-next-line no-unused-vars\n Internal = function Promise(executor) {\n this._c = []; // <- awaiting reactions\n this._a = undefined; // <- checked in isUnhandled reactions\n this._s = 0; // <- state\n this._d = false; // <- done\n this._v = undefined; // <- value\n this._h = 0; // <- rejection state, 0 - default, 1 - handled, 2 - unhandled\n this._n = false; // <- notify\n };\n Internal.prototype = require('./_redefine-all')($Promise.prototype, {\n // 25.4.5.3 Promise.prototype.then(onFulfilled, onRejected)\n then: function then(onFulfilled, onRejected) {\n var reaction = newPromiseCapability(speciesConstructor(this, $Promise));\n reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;\n reaction.fail = typeof onRejected == 'function' && onRejected;\n reaction.domain = isNode ? process.domain : undefined;\n this._c.push(reaction);\n if (this._a) this._a.push(reaction);\n if (this._s) notify(this, false);\n return reaction.promise;\n },\n // 25.4.5.1 Promise.prototype.catch(onRejected)\n 'catch': function (onRejected) {\n return this.then(undefined, onRejected);\n }\n });\n OwnPromiseCapability = function () {\n var promise = new Internal();\n this.promise = promise;\n this.resolve = ctx($resolve, promise, 1);\n this.reject = ctx($reject, promise, 1);\n };\n newPromiseCapabilityModule.f = newPromiseCapability = function (C) {\n return C === $Promise || C === Wrapper\n ? new OwnPromiseCapability(C)\n : newGenericPromiseCapability(C);\n };\n}\n\n$export($export.G + $export.W + $export.F * !USE_NATIVE, { Promise: $Promise });\nrequire('./_set-to-string-tag')($Promise, PROMISE);\nrequire('./_set-species')(PROMISE);\nWrapper = require('./_core')[PROMISE];\n\n// statics\n$export($export.S + $export.F * !USE_NATIVE, PROMISE, {\n // 25.4.4.5 Promise.reject(r)\n reject: function reject(r) {\n var capability = newPromiseCapability(this);\n var $$reject = capability.reject;\n $$reject(r);\n return capability.promise;\n }\n});\n$export($export.S + $export.F * (LIBRARY || !USE_NATIVE), PROMISE, {\n // 25.4.4.6 Promise.resolve(x)\n resolve: function resolve(x) {\n return promiseResolve(LIBRARY && this === Wrapper ? $Promise : this, x);\n }\n});\n$export($export.S + $export.F * !(USE_NATIVE && require('./_iter-detect')(function (iter) {\n $Promise.all(iter)['catch'](empty);\n})), PROMISE, {\n // 25.4.4.1 Promise.all(iterable)\n all: function all(iterable) {\n var C = this;\n var capability = newPromiseCapability(C);\n var resolve = capability.resolve;\n var reject = capability.reject;\n var result = perform(function () {\n var values = [];\n var index = 0;\n var remaining = 1;\n forOf(iterable, false, function (promise) {\n var $index = index++;\n var alreadyCalled = false;\n values.push(undefined);\n remaining++;\n C.resolve(promise).then(function (value) {\n if (alreadyCalled) return;\n alreadyCalled = true;\n values[$index] = value;\n --remaining || resolve(values);\n }, reject);\n });\n --remaining || resolve(values);\n });\n if (result.e) reject(result.v);\n return capability.promise;\n },\n // 25.4.4.4 Promise.race(iterable)\n race: function race(iterable) {\n var C = this;\n var capability = newPromiseCapability(C);\n var reject = capability.reject;\n var result = perform(function () {\n forOf(iterable, false, function (promise) {\n C.resolve(promise).then(capability.resolve, reject);\n });\n });\n if (result.e) reject(result.v);\n return capability.promise;\n }\n});\n","// 26.1.1 Reflect.apply(target, thisArgument, argumentsList)\nvar $export = require('./_export');\nvar aFunction = require('./_a-function');\nvar anObject = require('./_an-object');\nvar rApply = (require('./_global').Reflect || {}).apply;\nvar fApply = Function.apply;\n// MS Edge argumentsList argument is optional\n$export($export.S + $export.F * !require('./_fails')(function () {\n rApply(function () { /* empty */ });\n}), 'Reflect', {\n apply: function apply(target, thisArgument, argumentsList) {\n var T = aFunction(target);\n var L = anObject(argumentsList);\n return rApply ? rApply(T, thisArgument, L) : fApply.call(T, thisArgument, L);\n }\n});\n","// 26.1.2 Reflect.construct(target, argumentsList [, newTarget])\nvar $export = require('./_export');\nvar create = require('./_object-create');\nvar aFunction = require('./_a-function');\nvar anObject = require('./_an-object');\nvar isObject = require('./_is-object');\nvar fails = require('./_fails');\nvar bind = require('./_bind');\nvar rConstruct = (require('./_global').Reflect || {}).construct;\n\n// MS Edge supports only 2 arguments and argumentsList argument is optional\n// FF Nightly sets third argument as `new.target`, but does not create `this` from it\nvar NEW_TARGET_BUG = fails(function () {\n function F() { /* empty */ }\n return !(rConstruct(function () { /* empty */ }, [], F) instanceof F);\n});\nvar ARGS_BUG = !fails(function () {\n rConstruct(function () { /* empty */ });\n});\n\n$export($export.S + $export.F * (NEW_TARGET_BUG || ARGS_BUG), 'Reflect', {\n construct: function construct(Target, args /* , newTarget */) {\n aFunction(Target);\n anObject(args);\n var newTarget = arguments.length < 3 ? Target : aFunction(arguments[2]);\n if (ARGS_BUG && !NEW_TARGET_BUG) return rConstruct(Target, args, newTarget);\n if (Target == newTarget) {\n // w/o altered newTarget, optimization for 0-4 arguments\n switch (args.length) {\n case 0: return new Target();\n case 1: return new Target(args[0]);\n case 2: return new Target(args[0], args[1]);\n case 3: return new Target(args[0], args[1], args[2]);\n case 4: return new Target(args[0], args[1], args[2], args[3]);\n }\n // w/o altered newTarget, lot of arguments case\n var $args = [null];\n $args.push.apply($args, args);\n return new (bind.apply(Target, $args))();\n }\n // with altered newTarget, not support built-in constructors\n var proto = newTarget.prototype;\n var instance = create(isObject(proto) ? proto : Object.prototype);\n var result = Function.apply.call(Target, instance, args);\n return isObject(result) ? result : instance;\n }\n});\n","// 26.1.3 Reflect.defineProperty(target, propertyKey, attributes)\nvar dP = require('./_object-dp');\nvar $export = require('./_export');\nvar anObject = require('./_an-object');\nvar toPrimitive = require('./_to-primitive');\n\n// MS Edge has broken Reflect.defineProperty - throwing instead of returning false\n$export($export.S + $export.F * require('./_fails')(function () {\n // eslint-disable-next-line no-undef\n Reflect.defineProperty(dP.f({}, 1, { value: 1 }), 1, { value: 2 });\n}), 'Reflect', {\n defineProperty: function defineProperty(target, propertyKey, attributes) {\n anObject(target);\n propertyKey = toPrimitive(propertyKey, true);\n anObject(attributes);\n try {\n dP.f(target, propertyKey, attributes);\n return true;\n } catch (e) {\n return false;\n }\n }\n});\n","// 26.1.4 Reflect.deleteProperty(target, propertyKey)\nvar $export = require('./_export');\nvar gOPD = require('./_object-gopd').f;\nvar anObject = require('./_an-object');\n\n$export($export.S, 'Reflect', {\n deleteProperty: function deleteProperty(target, propertyKey) {\n var desc = gOPD(anObject(target), propertyKey);\n return desc && !desc.configurable ? false : delete target[propertyKey];\n }\n});\n","'use strict';\n// 26.1.5 Reflect.enumerate(target)\nvar $export = require('./_export');\nvar anObject = require('./_an-object');\nvar Enumerate = function (iterated) {\n this._t = anObject(iterated); // target\n this._i = 0; // next index\n var keys = this._k = []; // keys\n var key;\n for (key in iterated) keys.push(key);\n};\nrequire('./_iter-create')(Enumerate, 'Object', function () {\n var that = this;\n var keys = that._k;\n var key;\n do {\n if (that._i >= keys.length) return { value: undefined, done: true };\n } while (!((key = keys[that._i++]) in that._t));\n return { value: key, done: false };\n});\n\n$export($export.S, 'Reflect', {\n enumerate: function enumerate(target) {\n return new Enumerate(target);\n }\n});\n","// 26.1.7 Reflect.getOwnPropertyDescriptor(target, propertyKey)\nvar gOPD = require('./_object-gopd');\nvar $export = require('./_export');\nvar anObject = require('./_an-object');\n\n$export($export.S, 'Reflect', {\n getOwnPropertyDescriptor: function getOwnPropertyDescriptor(target, propertyKey) {\n return gOPD.f(anObject(target), propertyKey);\n }\n});\n","// 26.1.8 Reflect.getPrototypeOf(target)\nvar $export = require('./_export');\nvar getProto = require('./_object-gpo');\nvar anObject = require('./_an-object');\n\n$export($export.S, 'Reflect', {\n getPrototypeOf: function getPrototypeOf(target) {\n return getProto(anObject(target));\n }\n});\n","// 26.1.6 Reflect.get(target, propertyKey [, receiver])\nvar gOPD = require('./_object-gopd');\nvar getPrototypeOf = require('./_object-gpo');\nvar has = require('./_has');\nvar $export = require('./_export');\nvar isObject = require('./_is-object');\nvar anObject = require('./_an-object');\n\nfunction get(target, propertyKey /* , receiver */) {\n var receiver = arguments.length < 3 ? target : arguments[2];\n var desc, proto;\n if (anObject(target) === receiver) return target[propertyKey];\n if (desc = gOPD.f(target, propertyKey)) return has(desc, 'value')\n ? desc.value\n : desc.get !== undefined\n ? desc.get.call(receiver)\n : undefined;\n if (isObject(proto = getPrototypeOf(target))) return get(proto, propertyKey, receiver);\n}\n\n$export($export.S, 'Reflect', { get: get });\n","// 26.1.9 Reflect.has(target, propertyKey)\nvar $export = require('./_export');\n\n$export($export.S, 'Reflect', {\n has: function has(target, propertyKey) {\n return propertyKey in target;\n }\n});\n","// 26.1.10 Reflect.isExtensible(target)\nvar $export = require('./_export');\nvar anObject = require('./_an-object');\nvar $isExtensible = Object.isExtensible;\n\n$export($export.S, 'Reflect', {\n isExtensible: function isExtensible(target) {\n anObject(target);\n return $isExtensible ? $isExtensible(target) : true;\n }\n});\n","// 26.1.11 Reflect.ownKeys(target)\nvar $export = require('./_export');\n\n$export($export.S, 'Reflect', { ownKeys: require('./_own-keys') });\n","// 26.1.12 Reflect.preventExtensions(target)\nvar $export = require('./_export');\nvar anObject = require('./_an-object');\nvar $preventExtensions = Object.preventExtensions;\n\n$export($export.S, 'Reflect', {\n preventExtensions: function preventExtensions(target) {\n anObject(target);\n try {\n if ($preventExtensions) $preventExtensions(target);\n return true;\n } catch (e) {\n return false;\n }\n }\n});\n","// 26.1.14 Reflect.setPrototypeOf(target, proto)\nvar $export = require('./_export');\nvar setProto = require('./_set-proto');\n\nif (setProto) $export($export.S, 'Reflect', {\n setPrototypeOf: function setPrototypeOf(target, proto) {\n setProto.check(target, proto);\n try {\n setProto.set(target, proto);\n return true;\n } catch (e) {\n return false;\n }\n }\n});\n","// 26.1.13 Reflect.set(target, propertyKey, V [, receiver])\nvar dP = require('./_object-dp');\nvar gOPD = require('./_object-gopd');\nvar getPrototypeOf = require('./_object-gpo');\nvar has = require('./_has');\nvar $export = require('./_export');\nvar createDesc = require('./_property-desc');\nvar anObject = require('./_an-object');\nvar isObject = require('./_is-object');\n\nfunction set(target, propertyKey, V /* , receiver */) {\n var receiver = arguments.length < 4 ? target : arguments[3];\n var ownDesc = gOPD.f(anObject(target), propertyKey);\n var existingDescriptor, proto;\n if (!ownDesc) {\n if (isObject(proto = getPrototypeOf(target))) {\n return set(proto, propertyKey, V, receiver);\n }\n ownDesc = createDesc(0);\n }\n if (has(ownDesc, 'value')) {\n if (ownDesc.writable === false || !isObject(receiver)) return false;\n if (existingDescriptor = gOPD.f(receiver, propertyKey)) {\n if (existingDescriptor.get || existingDescriptor.set || existingDescriptor.writable === false) return false;\n existingDescriptor.value = V;\n dP.f(receiver, propertyKey, existingDescriptor);\n } else dP.f(receiver, propertyKey, createDesc(0, V));\n return true;\n }\n return ownDesc.set === undefined ? false : (ownDesc.set.call(receiver, V), true);\n}\n\n$export($export.S, 'Reflect', { set: set });\n","var global = require('./_global');\nvar inheritIfRequired = require('./_inherit-if-required');\nvar dP = require('./_object-dp').f;\nvar gOPN = require('./_object-gopn').f;\nvar isRegExp = require('./_is-regexp');\nvar $flags = require('./_flags');\nvar $RegExp = global.RegExp;\nvar Base = $RegExp;\nvar proto = $RegExp.prototype;\nvar re1 = /a/g;\nvar re2 = /a/g;\n// \"new\" creates a new object, old webkit buggy here\nvar CORRECT_NEW = new $RegExp(re1) !== re1;\n\nif (require('./_descriptors') && (!CORRECT_NEW || require('./_fails')(function () {\n re2[require('./_wks')('match')] = false;\n // RegExp constructor can alter flags and IsRegExp works correct with @@match\n return $RegExp(re1) != re1 || $RegExp(re2) == re2 || $RegExp(re1, 'i') != '/a/i';\n}))) {\n $RegExp = function RegExp(p, f) {\n var tiRE = this instanceof $RegExp;\n var piRE = isRegExp(p);\n var fiU = f === undefined;\n return !tiRE && piRE && p.constructor === $RegExp && fiU ? p\n : inheritIfRequired(CORRECT_NEW\n ? new Base(piRE && !fiU ? p.source : p, f)\n : Base((piRE = p instanceof $RegExp) ? p.source : p, piRE && fiU ? $flags.call(p) : f)\n , tiRE ? this : proto, $RegExp);\n };\n var proxy = function (key) {\n key in $RegExp || dP($RegExp, key, {\n configurable: true,\n get: function () { return Base[key]; },\n set: function (it) { Base[key] = it; }\n });\n };\n for (var keys = gOPN(Base), i = 0; keys.length > i;) proxy(keys[i++]);\n proto.constructor = $RegExp;\n $RegExp.prototype = proto;\n require('./_redefine')(global, 'RegExp', $RegExp);\n}\n\nrequire('./_set-species')('RegExp');\n","// 21.2.5.3 get RegExp.prototype.flags()\nif (require('./_descriptors') && /./g.flags != 'g') require('./_object-dp').f(RegExp.prototype, 'flags', {\n configurable: true,\n get: require('./_flags')\n});\n","// @@match logic\nrequire('./_fix-re-wks')('match', 1, function (defined, MATCH, $match) {\n // 21.1.3.11 String.prototype.match(regexp)\n return [function match(regexp) {\n 'use strict';\n var O = defined(this);\n var fn = regexp == undefined ? undefined : regexp[MATCH];\n return fn !== undefined ? fn.call(regexp, O) : new RegExp(regexp)[MATCH](String(O));\n }, $match];\n});\n","// @@replace logic\nrequire('./_fix-re-wks')('replace', 2, function (defined, REPLACE, $replace) {\n // 21.1.3.14 String.prototype.replace(searchValue, replaceValue)\n return [function replace(searchValue, replaceValue) {\n 'use strict';\n var O = defined(this);\n var fn = searchValue == undefined ? undefined : searchValue[REPLACE];\n return fn !== undefined\n ? fn.call(searchValue, O, replaceValue)\n : $replace.call(String(O), searchValue, replaceValue);\n }, $replace];\n});\n","// @@search logic\nrequire('./_fix-re-wks')('search', 1, function (defined, SEARCH, $search) {\n // 21.1.3.15 String.prototype.search(regexp)\n return [function search(regexp) {\n 'use strict';\n var O = defined(this);\n var fn = regexp == undefined ? undefined : regexp[SEARCH];\n return fn !== undefined ? fn.call(regexp, O) : new RegExp(regexp)[SEARCH](String(O));\n }, $search];\n});\n","// @@split logic\nrequire('./_fix-re-wks')('split', 2, function (defined, SPLIT, $split) {\n 'use strict';\n var isRegExp = require('./_is-regexp');\n var _split = $split;\n var $push = [].push;\n var $SPLIT = 'split';\n var LENGTH = 'length';\n var LAST_INDEX = 'lastIndex';\n if (\n 'abbc'[$SPLIT](/(b)*/)[1] == 'c' ||\n 'test'[$SPLIT](/(?:)/, -1)[LENGTH] != 4 ||\n 'ab'[$SPLIT](/(?:ab)*/)[LENGTH] != 2 ||\n '.'[$SPLIT](/(.?)(.?)/)[LENGTH] != 4 ||\n '.'[$SPLIT](/()()/)[LENGTH] > 1 ||\n ''[$SPLIT](/.?/)[LENGTH]\n ) {\n var NPCG = /()??/.exec('')[1] === undefined; // nonparticipating capturing group\n // based on es5-shim implementation, need to rework it\n $split = function (separator, limit) {\n var string = String(this);\n if (separator === undefined && limit === 0) return [];\n // If `separator` is not a regex, use native split\n if (!isRegExp(separator)) return _split.call(string, separator, limit);\n var output = [];\n var flags = (separator.ignoreCase ? 'i' : '') +\n (separator.multiline ? 'm' : '') +\n (separator.unicode ? 'u' : '') +\n (separator.sticky ? 'y' : '');\n var lastLastIndex = 0;\n var splitLimit = limit === undefined ? 4294967295 : limit >>> 0;\n // Make `global` and avoid `lastIndex` issues by working with a copy\n var separatorCopy = new RegExp(separator.source, flags + 'g');\n var separator2, match, lastIndex, lastLength, i;\n // Doesn't need flags gy, but they don't hurt\n if (!NPCG) separator2 = new RegExp('^' + separatorCopy.source + '$(?!\\\\s)', flags);\n while (match = separatorCopy.exec(string)) {\n // `separatorCopy.lastIndex` is not reliable cross-browser\n lastIndex = match.index + match[0][LENGTH];\n if (lastIndex > lastLastIndex) {\n output.push(string.slice(lastLastIndex, match.index));\n // Fix browsers whose `exec` methods don't consistently return `undefined` for NPCG\n // eslint-disable-next-line no-loop-func\n if (!NPCG && match[LENGTH] > 1) match[0].replace(separator2, function () {\n for (i = 1; i < arguments[LENGTH] - 2; i++) if (arguments[i] === undefined) match[i] = undefined;\n });\n if (match[LENGTH] > 1 && match.index < string[LENGTH]) $push.apply(output, match.slice(1));\n lastLength = match[0][LENGTH];\n lastLastIndex = lastIndex;\n if (output[LENGTH] >= splitLimit) break;\n }\n if (separatorCopy[LAST_INDEX] === match.index) separatorCopy[LAST_INDEX]++; // Avoid an infinite loop\n }\n if (lastLastIndex === string[LENGTH]) {\n if (lastLength || !separatorCopy.test('')) output.push('');\n } else output.push(string.slice(lastLastIndex));\n return output[LENGTH] > splitLimit ? output.slice(0, splitLimit) : output;\n };\n // Chakra, V8\n } else if ('0'[$SPLIT](undefined, 0)[LENGTH]) {\n $split = function (separator, limit) {\n return separator === undefined && limit === 0 ? [] : _split.call(this, separator, limit);\n };\n }\n // 21.1.3.17 String.prototype.split(separator, limit)\n return [function split(separator, limit) {\n var O = defined(this);\n var fn = separator == undefined ? undefined : separator[SPLIT];\n return fn !== undefined ? fn.call(separator, O, limit) : $split.call(String(O), separator, limit);\n }, $split];\n});\n","'use strict';\nrequire('./es6.regexp.flags');\nvar anObject = require('./_an-object');\nvar $flags = require('./_flags');\nvar DESCRIPTORS = require('./_descriptors');\nvar TO_STRING = 'toString';\nvar $toString = /./[TO_STRING];\n\nvar define = function (fn) {\n require('./_redefine')(RegExp.prototype, TO_STRING, fn, true);\n};\n\n// 21.2.5.14 RegExp.prototype.toString()\nif (require('./_fails')(function () { return $toString.call({ source: 'a', flags: 'b' }) != '/a/b'; })) {\n define(function toString() {\n var R = anObject(this);\n return '/'.concat(R.source, '/',\n 'flags' in R ? R.flags : !DESCRIPTORS && R instanceof RegExp ? $flags.call(R) : undefined);\n });\n// FF44- RegExp#toString has a wrong name\n} else if ($toString.name != TO_STRING) {\n define(function toString() {\n return $toString.call(this);\n });\n}\n","'use strict';\nvar strong = require('./_collection-strong');\nvar validate = require('./_validate-collection');\nvar SET = 'Set';\n\n// 23.2 Set Objects\nmodule.exports = require('./_collection')(SET, function (get) {\n return function Set() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };\n}, {\n // 23.2.3.1 Set.prototype.add(value)\n add: function add(value) {\n return strong.def(validate(this, SET), value = value === 0 ? 0 : value, value);\n }\n}, strong);\n","'use strict';\n// B.2.3.2 String.prototype.anchor(name)\nrequire('./_string-html')('anchor', function (createHTML) {\n return function anchor(name) {\n return createHTML(this, 'a', 'name', name);\n };\n});\n","'use strict';\n// B.2.3.3 String.prototype.big()\nrequire('./_string-html')('big', function (createHTML) {\n return function big() {\n return createHTML(this, 'big', '', '');\n };\n});\n","'use strict';\n// B.2.3.4 String.prototype.blink()\nrequire('./_string-html')('blink', function (createHTML) {\n return function blink() {\n return createHTML(this, 'blink', '', '');\n };\n});\n","'use strict';\n// B.2.3.5 String.prototype.bold()\nrequire('./_string-html')('bold', function (createHTML) {\n return function bold() {\n return createHTML(this, 'b', '', '');\n };\n});\n","'use strict';\nvar $export = require('./_export');\nvar $at = require('./_string-at')(false);\n$export($export.P, 'String', {\n // 21.1.3.3 String.prototype.codePointAt(pos)\n codePointAt: function codePointAt(pos) {\n return $at(this, pos);\n }\n});\n","// 21.1.3.6 String.prototype.endsWith(searchString [, endPosition])\n'use strict';\nvar $export = require('./_export');\nvar toLength = require('./_to-length');\nvar context = require('./_string-context');\nvar ENDS_WITH = 'endsWith';\nvar $endsWith = ''[ENDS_WITH];\n\n$export($export.P + $export.F * require('./_fails-is-regexp')(ENDS_WITH), 'String', {\n endsWith: function endsWith(searchString /* , endPosition = @length */) {\n var that = context(this, searchString, ENDS_WITH);\n var endPosition = arguments.length > 1 ? arguments[1] : undefined;\n var len = toLength(that.length);\n var end = endPosition === undefined ? len : Math.min(toLength(endPosition), len);\n var search = String(searchString);\n return $endsWith\n ? $endsWith.call(that, search, end)\n : that.slice(end - search.length, end) === search;\n }\n});\n","'use strict';\n// B.2.3.6 String.prototype.fixed()\nrequire('./_string-html')('fixed', function (createHTML) {\n return function fixed() {\n return createHTML(this, 'tt', '', '');\n };\n});\n","'use strict';\n// B.2.3.7 String.prototype.fontcolor(color)\nrequire('./_string-html')('fontcolor', function (createHTML) {\n return function fontcolor(color) {\n return createHTML(this, 'font', 'color', color);\n };\n});\n","'use strict';\n// B.2.3.8 String.prototype.fontsize(size)\nrequire('./_string-html')('fontsize', function (createHTML) {\n return function fontsize(size) {\n return createHTML(this, 'font', 'size', size);\n };\n});\n","var $export = require('./_export');\nvar toAbsoluteIndex = require('./_to-absolute-index');\nvar fromCharCode = String.fromCharCode;\nvar $fromCodePoint = String.fromCodePoint;\n\n// length should be 1, old FF problem\n$export($export.S + $export.F * (!!$fromCodePoint && $fromCodePoint.length != 1), 'String', {\n // 21.1.2.2 String.fromCodePoint(...codePoints)\n fromCodePoint: function fromCodePoint(x) { // eslint-disable-line no-unused-vars\n var res = [];\n var aLen = arguments.length;\n var i = 0;\n var code;\n while (aLen > i) {\n code = +arguments[i++];\n if (toAbsoluteIndex(code, 0x10ffff) !== code) throw RangeError(code + ' is not a valid code point');\n res.push(code < 0x10000\n ? fromCharCode(code)\n : fromCharCode(((code -= 0x10000) >> 10) + 0xd800, code % 0x400 + 0xdc00)\n );\n } return res.join('');\n }\n});\n","// 21.1.3.7 String.prototype.includes(searchString, position = 0)\n'use strict';\nvar $export = require('./_export');\nvar context = require('./_string-context');\nvar INCLUDES = 'includes';\n\n$export($export.P + $export.F * require('./_fails-is-regexp')(INCLUDES), 'String', {\n includes: function includes(searchString /* , position = 0 */) {\n return !!~context(this, searchString, INCLUDES)\n .indexOf(searchString, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n","'use strict';\n// B.2.3.9 String.prototype.italics()\nrequire('./_string-html')('italics', function (createHTML) {\n return function italics() {\n return createHTML(this, 'i', '', '');\n };\n});\n","'use strict';\nvar $at = require('./_string-at')(true);\n\n// 21.1.3.27 String.prototype[@@iterator]()\nrequire('./_iter-define')(String, 'String', function (iterated) {\n this._t = String(iterated); // target\n this._i = 0; // next index\n// 21.1.5.2.1 %StringIteratorPrototype%.next()\n}, function () {\n var O = this._t;\n var index = this._i;\n var point;\n if (index >= O.length) return { value: undefined, done: true };\n point = $at(O, index);\n this._i += point.length;\n return { value: point, done: false };\n});\n","'use strict';\n// B.2.3.10 String.prototype.link(url)\nrequire('./_string-html')('link', function (createHTML) {\n return function link(url) {\n return createHTML(this, 'a', 'href', url);\n };\n});\n","var $export = require('./_export');\nvar toIObject = require('./_to-iobject');\nvar toLength = require('./_to-length');\n\n$export($export.S, 'String', {\n // 21.1.2.4 String.raw(callSite, ...substitutions)\n raw: function raw(callSite) {\n var tpl = toIObject(callSite.raw);\n var len = toLength(tpl.length);\n var aLen = arguments.length;\n var res = [];\n var i = 0;\n while (len > i) {\n res.push(String(tpl[i++]));\n if (i < aLen) res.push(String(arguments[i]));\n } return res.join('');\n }\n});\n","var $export = require('./_export');\n\n$export($export.P, 'String', {\n // 21.1.3.13 String.prototype.repeat(count)\n repeat: require('./_string-repeat')\n});\n","'use strict';\n// B.2.3.11 String.prototype.small()\nrequire('./_string-html')('small', function (createHTML) {\n return function small() {\n return createHTML(this, 'small', '', '');\n };\n});\n","// 21.1.3.18 String.prototype.startsWith(searchString [, position ])\n'use strict';\nvar $export = require('./_export');\nvar toLength = require('./_to-length');\nvar context = require('./_string-context');\nvar STARTS_WITH = 'startsWith';\nvar $startsWith = ''[STARTS_WITH];\n\n$export($export.P + $export.F * require('./_fails-is-regexp')(STARTS_WITH), 'String', {\n startsWith: function startsWith(searchString /* , position = 0 */) {\n var that = context(this, searchString, STARTS_WITH);\n var index = toLength(Math.min(arguments.length > 1 ? arguments[1] : undefined, that.length));\n var search = String(searchString);\n return $startsWith\n ? $startsWith.call(that, search, index)\n : that.slice(index, index + search.length) === search;\n }\n});\n","'use strict';\n// B.2.3.12 String.prototype.strike()\nrequire('./_string-html')('strike', function (createHTML) {\n return function strike() {\n return createHTML(this, 'strike', '', '');\n };\n});\n","'use strict';\n// B.2.3.13 String.prototype.sub()\nrequire('./_string-html')('sub', function (createHTML) {\n return function sub() {\n return createHTML(this, 'sub', '', '');\n };\n});\n","'use strict';\n// B.2.3.14 String.prototype.sup()\nrequire('./_string-html')('sup', function (createHTML) {\n return function sup() {\n return createHTML(this, 'sup', '', '');\n };\n});\n","'use strict';\n// 21.1.3.25 String.prototype.trim()\nrequire('./_string-trim')('trim', function ($trim) {\n return function trim() {\n return $trim(this, 3);\n };\n});\n","'use strict';\n// ECMAScript 6 symbols shim\nvar global = require('./_global');\nvar has = require('./_has');\nvar DESCRIPTORS = require('./_descriptors');\nvar $export = require('./_export');\nvar redefine = require('./_redefine');\nvar META = require('./_meta').KEY;\nvar $fails = require('./_fails');\nvar shared = require('./_shared');\nvar setToStringTag = require('./_set-to-string-tag');\nvar uid = require('./_uid');\nvar wks = require('./_wks');\nvar wksExt = require('./_wks-ext');\nvar wksDefine = require('./_wks-define');\nvar enumKeys = require('./_enum-keys');\nvar isArray = require('./_is-array');\nvar anObject = require('./_an-object');\nvar isObject = require('./_is-object');\nvar toIObject = require('./_to-iobject');\nvar toPrimitive = require('./_to-primitive');\nvar createDesc = require('./_property-desc');\nvar _create = require('./_object-create');\nvar gOPNExt = require('./_object-gopn-ext');\nvar $GOPD = require('./_object-gopd');\nvar $DP = require('./_object-dp');\nvar $keys = require('./_object-keys');\nvar gOPD = $GOPD.f;\nvar dP = $DP.f;\nvar gOPN = gOPNExt.f;\nvar $Symbol = global.Symbol;\nvar $JSON = global.JSON;\nvar _stringify = $JSON && $JSON.stringify;\nvar PROTOTYPE = 'prototype';\nvar HIDDEN = wks('_hidden');\nvar TO_PRIMITIVE = wks('toPrimitive');\nvar isEnum = {}.propertyIsEnumerable;\nvar SymbolRegistry = shared('symbol-registry');\nvar AllSymbols = shared('symbols');\nvar OPSymbols = shared('op-symbols');\nvar ObjectProto = Object[PROTOTYPE];\nvar USE_NATIVE = typeof $Symbol == 'function';\nvar QObject = global.QObject;\n// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173\nvar setter = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;\n\n// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687\nvar setSymbolDesc = DESCRIPTORS && $fails(function () {\n return _create(dP({}, 'a', {\n get: function () { return dP(this, 'a', { value: 7 }).a; }\n })).a != 7;\n}) ? function (it, key, D) {\n var protoDesc = gOPD(ObjectProto, key);\n if (protoDesc) delete ObjectProto[key];\n dP(it, key, D);\n if (protoDesc && it !== ObjectProto) dP(ObjectProto, key, protoDesc);\n} : dP;\n\nvar wrap = function (tag) {\n var sym = AllSymbols[tag] = _create($Symbol[PROTOTYPE]);\n sym._k = tag;\n return sym;\n};\n\nvar isSymbol = USE_NATIVE && typeof $Symbol.iterator == 'symbol' ? function (it) {\n return typeof it == 'symbol';\n} : function (it) {\n return it instanceof $Symbol;\n};\n\nvar $defineProperty = function defineProperty(it, key, D) {\n if (it === ObjectProto) $defineProperty(OPSymbols, key, D);\n anObject(it);\n key = toPrimitive(key, true);\n anObject(D);\n if (has(AllSymbols, key)) {\n if (!D.enumerable) {\n if (!has(it, HIDDEN)) dP(it, HIDDEN, createDesc(1, {}));\n it[HIDDEN][key] = true;\n } else {\n if (has(it, HIDDEN) && it[HIDDEN][key]) it[HIDDEN][key] = false;\n D = _create(D, { enumerable: createDesc(0, false) });\n } return setSymbolDesc(it, key, D);\n } return dP(it, key, D);\n};\nvar $defineProperties = function defineProperties(it, P) {\n anObject(it);\n var keys = enumKeys(P = toIObject(P));\n var i = 0;\n var l = keys.length;\n var key;\n while (l > i) $defineProperty(it, key = keys[i++], P[key]);\n return it;\n};\nvar $create = function create(it, P) {\n return P === undefined ? _create(it) : $defineProperties(_create(it), P);\n};\nvar $propertyIsEnumerable = function propertyIsEnumerable(key) {\n var E = isEnum.call(this, key = toPrimitive(key, true));\n if (this === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return false;\n return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key] ? E : true;\n};\nvar $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key) {\n it = toIObject(it);\n key = toPrimitive(key, true);\n if (it === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return;\n var D = gOPD(it, key);\n if (D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) D.enumerable = true;\n return D;\n};\nvar $getOwnPropertyNames = function getOwnPropertyNames(it) {\n var names = gOPN(toIObject(it));\n var result = [];\n var i = 0;\n var key;\n while (names.length > i) {\n if (!has(AllSymbols, key = names[i++]) && key != HIDDEN && key != META) result.push(key);\n } return result;\n};\nvar $getOwnPropertySymbols = function getOwnPropertySymbols(it) {\n var IS_OP = it === ObjectProto;\n var names = gOPN(IS_OP ? OPSymbols : toIObject(it));\n var result = [];\n var i = 0;\n var key;\n while (names.length > i) {\n if (has(AllSymbols, key = names[i++]) && (IS_OP ? has(ObjectProto, key) : true)) result.push(AllSymbols[key]);\n } return result;\n};\n\n// 19.4.1.1 Symbol([description])\nif (!USE_NATIVE) {\n $Symbol = function Symbol() {\n if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor!');\n var tag = uid(arguments.length > 0 ? arguments[0] : undefined);\n var $set = function (value) {\n if (this === ObjectProto) $set.call(OPSymbols, value);\n if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;\n setSymbolDesc(this, tag, createDesc(1, value));\n };\n if (DESCRIPTORS && setter) setSymbolDesc(ObjectProto, tag, { configurable: true, set: $set });\n return wrap(tag);\n };\n redefine($Symbol[PROTOTYPE], 'toString', function toString() {\n return this._k;\n });\n\n $GOPD.f = $getOwnPropertyDescriptor;\n $DP.f = $defineProperty;\n require('./_object-gopn').f = gOPNExt.f = $getOwnPropertyNames;\n require('./_object-pie').f = $propertyIsEnumerable;\n require('./_object-gops').f = $getOwnPropertySymbols;\n\n if (DESCRIPTORS && !require('./_library')) {\n redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);\n }\n\n wksExt.f = function (name) {\n return wrap(wks(name));\n };\n}\n\n$export($export.G + $export.W + $export.F * !USE_NATIVE, { Symbol: $Symbol });\n\nfor (var es6Symbols = (\n // 19.4.2.2, 19.4.2.3, 19.4.2.4, 19.4.2.6, 19.4.2.8, 19.4.2.9, 19.4.2.10, 19.4.2.11, 19.4.2.12, 19.4.2.13, 19.4.2.14\n 'hasInstance,isConcatSpreadable,iterator,match,replace,search,species,split,toPrimitive,toStringTag,unscopables'\n).split(','), j = 0; es6Symbols.length > j;)wks(es6Symbols[j++]);\n\nfor (var wellKnownSymbols = $keys(wks.store), k = 0; wellKnownSymbols.length > k;) wksDefine(wellKnownSymbols[k++]);\n\n$export($export.S + $export.F * !USE_NATIVE, 'Symbol', {\n // 19.4.2.1 Symbol.for(key)\n 'for': function (key) {\n return has(SymbolRegistry, key += '')\n ? SymbolRegistry[key]\n : SymbolRegistry[key] = $Symbol(key);\n },\n // 19.4.2.5 Symbol.keyFor(sym)\n keyFor: function keyFor(sym) {\n if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol!');\n for (var key in SymbolRegistry) if (SymbolRegistry[key] === sym) return key;\n },\n useSetter: function () { setter = true; },\n useSimple: function () { setter = false; }\n});\n\n$export($export.S + $export.F * !USE_NATIVE, 'Object', {\n // 19.1.2.2 Object.create(O [, Properties])\n create: $create,\n // 19.1.2.4 Object.defineProperty(O, P, Attributes)\n defineProperty: $defineProperty,\n // 19.1.2.3 Object.defineProperties(O, Properties)\n defineProperties: $defineProperties,\n // 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)\n getOwnPropertyDescriptor: $getOwnPropertyDescriptor,\n // 19.1.2.7 Object.getOwnPropertyNames(O)\n getOwnPropertyNames: $getOwnPropertyNames,\n // 19.1.2.8 Object.getOwnPropertySymbols(O)\n getOwnPropertySymbols: $getOwnPropertySymbols\n});\n\n// 24.3.2 JSON.stringify(value [, replacer [, space]])\n$JSON && $export($export.S + $export.F * (!USE_NATIVE || $fails(function () {\n var S = $Symbol();\n // MS Edge converts symbol values to JSON as {}\n // WebKit converts symbol values to JSON as null\n // V8 throws on boxed symbols\n return _stringify([S]) != '[null]' || _stringify({ a: S }) != '{}' || _stringify(Object(S)) != '{}';\n})), 'JSON', {\n stringify: function stringify(it) {\n var args = [it];\n var i = 1;\n var replacer, $replacer;\n while (arguments.length > i) args.push(arguments[i++]);\n $replacer = replacer = args[1];\n if (!isObject(replacer) && it === undefined || isSymbol(it)) return; // IE8 returns string on undefined\n if (!isArray(replacer)) replacer = function (key, value) {\n if (typeof $replacer == 'function') value = $replacer.call(this, key, value);\n if (!isSymbol(value)) return value;\n };\n args[1] = replacer;\n return _stringify.apply($JSON, args);\n }\n});\n\n// 19.4.3.4 Symbol.prototype[@@toPrimitive](hint)\n$Symbol[PROTOTYPE][TO_PRIMITIVE] || require('./_hide')($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);\n// 19.4.3.5 Symbol.prototype[@@toStringTag]\nsetToStringTag($Symbol, 'Symbol');\n// 20.2.1.9 Math[@@toStringTag]\nsetToStringTag(Math, 'Math', true);\n// 24.3.3 JSON[@@toStringTag]\nsetToStringTag(global.JSON, 'JSON', true);\n","'use strict';\nvar $export = require('./_export');\nvar $typed = require('./_typed');\nvar buffer = require('./_typed-buffer');\nvar anObject = require('./_an-object');\nvar toAbsoluteIndex = require('./_to-absolute-index');\nvar toLength = require('./_to-length');\nvar isObject = require('./_is-object');\nvar ArrayBuffer = require('./_global').ArrayBuffer;\nvar speciesConstructor = require('./_species-constructor');\nvar $ArrayBuffer = buffer.ArrayBuffer;\nvar $DataView = buffer.DataView;\nvar $isView = $typed.ABV && ArrayBuffer.isView;\nvar $slice = $ArrayBuffer.prototype.slice;\nvar VIEW = $typed.VIEW;\nvar ARRAY_BUFFER = 'ArrayBuffer';\n\n$export($export.G + $export.W + $export.F * (ArrayBuffer !== $ArrayBuffer), { ArrayBuffer: $ArrayBuffer });\n\n$export($export.S + $export.F * !$typed.CONSTR, ARRAY_BUFFER, {\n // 24.1.3.1 ArrayBuffer.isView(arg)\n isView: function isView(it) {\n return $isView && $isView(it) || isObject(it) && VIEW in it;\n }\n});\n\n$export($export.P + $export.U + $export.F * require('./_fails')(function () {\n return !new $ArrayBuffer(2).slice(1, undefined).byteLength;\n}), ARRAY_BUFFER, {\n // 24.1.4.3 ArrayBuffer.prototype.slice(start, end)\n slice: function slice(start, end) {\n if ($slice !== undefined && end === undefined) return $slice.call(anObject(this), start); // FF fix\n var len = anObject(this).byteLength;\n var first = toAbsoluteIndex(start, len);\n var fin = toAbsoluteIndex(end === undefined ? len : end, len);\n var result = new (speciesConstructor(this, $ArrayBuffer))(toLength(fin - first));\n var viewS = new $DataView(this);\n var viewT = new $DataView(result);\n var index = 0;\n while (first < fin) {\n viewT.setUint8(index++, viewS.getUint8(first++));\n } return result;\n }\n});\n\nrequire('./_set-species')(ARRAY_BUFFER);\n","var $export = require('./_export');\n$export($export.G + $export.W + $export.F * !require('./_typed').ABV, {\n DataView: require('./_typed-buffer').DataView\n});\n","require('./_typed-array')('Float32', 4, function (init) {\n return function Float32Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","require('./_typed-array')('Float64', 8, function (init) {\n return function Float64Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","require('./_typed-array')('Int16', 2, function (init) {\n return function Int16Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","require('./_typed-array')('Int32', 4, function (init) {\n return function Int32Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","require('./_typed-array')('Int8', 1, function (init) {\n return function Int8Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","require('./_typed-array')('Uint16', 2, function (init) {\n return function Uint16Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","require('./_typed-array')('Uint32', 4, function (init) {\n return function Uint32Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","require('./_typed-array')('Uint8', 1, function (init) {\n return function Uint8Array(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n});\n","require('./_typed-array')('Uint8', 1, function (init) {\n return function Uint8ClampedArray(data, byteOffset, length) {\n return init(this, data, byteOffset, length);\n };\n}, true);\n","'use strict';\nvar each = require('./_array-methods')(0);\nvar redefine = require('./_redefine');\nvar meta = require('./_meta');\nvar assign = require('./_object-assign');\nvar weak = require('./_collection-weak');\nvar isObject = require('./_is-object');\nvar fails = require('./_fails');\nvar validate = require('./_validate-collection');\nvar WEAK_MAP = 'WeakMap';\nvar getWeak = meta.getWeak;\nvar isExtensible = Object.isExtensible;\nvar uncaughtFrozenStore = weak.ufstore;\nvar tmp = {};\nvar InternalMap;\n\nvar wrapper = function (get) {\n return function WeakMap() {\n return get(this, arguments.length > 0 ? arguments[0] : undefined);\n };\n};\n\nvar methods = {\n // 23.3.3.3 WeakMap.prototype.get(key)\n get: function get(key) {\n if (isObject(key)) {\n var data = getWeak(key);\n if (data === true) return uncaughtFrozenStore(validate(this, WEAK_MAP)).get(key);\n return data ? data[this._i] : undefined;\n }\n },\n // 23.3.3.5 WeakMap.prototype.set(key, value)\n set: function set(key, value) {\n return weak.def(validate(this, WEAK_MAP), key, value);\n }\n};\n\n// 23.3 WeakMap Objects\nvar $WeakMap = module.exports = require('./_collection')(WEAK_MAP, wrapper, methods, weak, true, true);\n\n// IE11 WeakMap frozen keys fix\nif (fails(function () { return new $WeakMap().set((Object.freeze || Object)(tmp), 7).get(tmp) != 7; })) {\n InternalMap = weak.getConstructor(wrapper, WEAK_MAP);\n assign(InternalMap.prototype, methods);\n meta.NEED = true;\n each(['delete', 'has', 'get', 'set'], function (key) {\n var proto = $WeakMap.prototype;\n var method = proto[key];\n redefine(proto, key, function (a, b) {\n // store frozen objects on internal weakmap shim\n if (isObject(a) && !isExtensible(a)) {\n if (!this._f) this._f = new InternalMap();\n var result = this._f[key](a, b);\n return key == 'set' ? this : result;\n // store all the rest on native weakmap\n } return method.call(this, a, b);\n });\n });\n}\n","'use strict';\nvar weak = require('./_collection-weak');\nvar validate = require('./_validate-collection');\nvar WEAK_SET = 'WeakSet';\n\n// 23.4 WeakSet Objects\nrequire('./_collection')(WEAK_SET, function (get) {\n return function WeakSet() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };\n}, {\n // 23.4.3.1 WeakSet.prototype.add(value)\n add: function add(value) {\n return weak.def(validate(this, WEAK_SET), value, true);\n }\n}, weak, false, true);\n","'use strict';\n// https://tc39.github.io/proposal-flatMap/#sec-Array.prototype.flatMap\nvar $export = require('./_export');\nvar flattenIntoArray = require('./_flatten-into-array');\nvar toObject = require('./_to-object');\nvar toLength = require('./_to-length');\nvar aFunction = require('./_a-function');\nvar arraySpeciesCreate = require('./_array-species-create');\n\n$export($export.P, 'Array', {\n flatMap: function flatMap(callbackfn /* , thisArg */) {\n var O = toObject(this);\n var sourceLen, A;\n aFunction(callbackfn);\n sourceLen = toLength(O.length);\n A = arraySpeciesCreate(O, 0);\n flattenIntoArray(A, O, O, sourceLen, 0, 1, callbackfn, arguments[1]);\n return A;\n }\n});\n\nrequire('./_add-to-unscopables')('flatMap');\n","'use strict';\n// https://tc39.github.io/proposal-flatMap/#sec-Array.prototype.flatten\nvar $export = require('./_export');\nvar flattenIntoArray = require('./_flatten-into-array');\nvar toObject = require('./_to-object');\nvar toLength = require('./_to-length');\nvar toInteger = require('./_to-integer');\nvar arraySpeciesCreate = require('./_array-species-create');\n\n$export($export.P, 'Array', {\n flatten: function flatten(/* depthArg = 1 */) {\n var depthArg = arguments[0];\n var O = toObject(this);\n var sourceLen = toLength(O.length);\n var A = arraySpeciesCreate(O, 0);\n flattenIntoArray(A, O, O, sourceLen, 0, depthArg === undefined ? 1 : toInteger(depthArg));\n return A;\n }\n});\n\nrequire('./_add-to-unscopables')('flatten');\n","'use strict';\n// https://github.com/tc39/Array.prototype.includes\nvar $export = require('./_export');\nvar $includes = require('./_array-includes')(true);\n\n$export($export.P, 'Array', {\n includes: function includes(el /* , fromIndex = 0 */) {\n return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);\n }\n});\n\nrequire('./_add-to-unscopables')('includes');\n","// https://github.com/rwaldron/tc39-notes/blob/master/es6/2014-09/sept-25.md#510-globalasap-for-enqueuing-a-microtask\nvar $export = require('./_export');\nvar microtask = require('./_microtask')();\nvar process = require('./_global').process;\nvar isNode = require('./_cof')(process) == 'process';\n\n$export($export.G, {\n asap: function asap(fn) {\n var domain = isNode && process.domain;\n microtask(domain ? domain.bind(fn) : fn);\n }\n});\n","// https://github.com/ljharb/proposal-is-error\nvar $export = require('./_export');\nvar cof = require('./_cof');\n\n$export($export.S, 'Error', {\n isError: function isError(it) {\n return cof(it) === 'Error';\n }\n});\n","// https://github.com/tc39/proposal-global\nvar $export = require('./_export');\n\n$export($export.G, { global: require('./_global') });\n","// https://tc39.github.io/proposal-setmap-offrom/#sec-map.from\nrequire('./_set-collection-from')('Map');\n","// https://tc39.github.io/proposal-setmap-offrom/#sec-map.of\nrequire('./_set-collection-of')('Map');\n","// https://github.com/DavidBruant/Map-Set.prototype.toJSON\nvar $export = require('./_export');\n\n$export($export.P + $export.R, 'Map', { toJSON: require('./_collection-to-json')('Map') });\n","// https://rwaldron.github.io/proposal-math-extensions/\nvar $export = require('./_export');\n\n$export($export.S, 'Math', {\n clamp: function clamp(x, lower, upper) {\n return Math.min(upper, Math.max(lower, x));\n }\n});\n","// https://rwaldron.github.io/proposal-math-extensions/\nvar $export = require('./_export');\n\n$export($export.S, 'Math', { DEG_PER_RAD: Math.PI / 180 });\n","// https://rwaldron.github.io/proposal-math-extensions/\nvar $export = require('./_export');\nvar RAD_PER_DEG = 180 / Math.PI;\n\n$export($export.S, 'Math', {\n degrees: function degrees(radians) {\n return radians * RAD_PER_DEG;\n }\n});\n","// https://rwaldron.github.io/proposal-math-extensions/\nvar $export = require('./_export');\nvar scale = require('./_math-scale');\nvar fround = require('./_math-fround');\n\n$export($export.S, 'Math', {\n fscale: function fscale(x, inLow, inHigh, outLow, outHigh) {\n return fround(scale(x, inLow, inHigh, outLow, outHigh));\n }\n});\n","// https://gist.github.com/BrendanEich/4294d5c212a6d2254703\nvar $export = require('./_export');\n\n$export($export.S, 'Math', {\n iaddh: function iaddh(x0, x1, y0, y1) {\n var $x0 = x0 >>> 0;\n var $x1 = x1 >>> 0;\n var $y0 = y0 >>> 0;\n return $x1 + (y1 >>> 0) + (($x0 & $y0 | ($x0 | $y0) & ~($x0 + $y0 >>> 0)) >>> 31) | 0;\n }\n});\n","// https://gist.github.com/BrendanEich/4294d5c212a6d2254703\nvar $export = require('./_export');\n\n$export($export.S, 'Math', {\n imulh: function imulh(u, v) {\n var UINT16 = 0xffff;\n var $u = +u;\n var $v = +v;\n var u0 = $u & UINT16;\n var v0 = $v & UINT16;\n var u1 = $u >> 16;\n var v1 = $v >> 16;\n var t = (u1 * v0 >>> 0) + (u0 * v0 >>> 16);\n return u1 * v1 + (t >> 16) + ((u0 * v1 >>> 0) + (t & UINT16) >> 16);\n }\n});\n","// https://gist.github.com/BrendanEich/4294d5c212a6d2254703\nvar $export = require('./_export');\n\n$export($export.S, 'Math', {\n isubh: function isubh(x0, x1, y0, y1) {\n var $x0 = x0 >>> 0;\n var $x1 = x1 >>> 0;\n var $y0 = y0 >>> 0;\n return $x1 - (y1 >>> 0) - ((~$x0 & $y0 | ~($x0 ^ $y0) & $x0 - $y0 >>> 0) >>> 31) | 0;\n }\n});\n","// https://rwaldron.github.io/proposal-math-extensions/\nvar $export = require('./_export');\n\n$export($export.S, 'Math', { RAD_PER_DEG: 180 / Math.PI });\n","// https://rwaldron.github.io/proposal-math-extensions/\nvar $export = require('./_export');\nvar DEG_PER_RAD = Math.PI / 180;\n\n$export($export.S, 'Math', {\n radians: function radians(degrees) {\n return degrees * DEG_PER_RAD;\n }\n});\n","// https://rwaldron.github.io/proposal-math-extensions/\nvar $export = require('./_export');\n\n$export($export.S, 'Math', { scale: require('./_math-scale') });\n","// http://jfbastien.github.io/papers/Math.signbit.html\nvar $export = require('./_export');\n\n$export($export.S, 'Math', { signbit: function signbit(x) {\n // eslint-disable-next-line no-self-compare\n return (x = +x) != x ? x : x == 0 ? 1 / x == Infinity : x > 0;\n} });\n","// https://gist.github.com/BrendanEich/4294d5c212a6d2254703\nvar $export = require('./_export');\n\n$export($export.S, 'Math', {\n umulh: function umulh(u, v) {\n var UINT16 = 0xffff;\n var $u = +u;\n var $v = +v;\n var u0 = $u & UINT16;\n var v0 = $v & UINT16;\n var u1 = $u >>> 16;\n var v1 = $v >>> 16;\n var t = (u1 * v0 >>> 0) + (u0 * v0 >>> 16);\n return u1 * v1 + (t >>> 16) + ((u0 * v1 >>> 0) + (t & UINT16) >>> 16);\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar toObject = require('./_to-object');\nvar aFunction = require('./_a-function');\nvar $defineProperty = require('./_object-dp');\n\n// B.2.2.2 Object.prototype.__defineGetter__(P, getter)\nrequire('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {\n __defineGetter__: function __defineGetter__(P, getter) {\n $defineProperty.f(toObject(this), P, { get: aFunction(getter), enumerable: true, configurable: true });\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar toObject = require('./_to-object');\nvar aFunction = require('./_a-function');\nvar $defineProperty = require('./_object-dp');\n\n// B.2.2.3 Object.prototype.__defineSetter__(P, setter)\nrequire('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {\n __defineSetter__: function __defineSetter__(P, setter) {\n $defineProperty.f(toObject(this), P, { set: aFunction(setter), enumerable: true, configurable: true });\n }\n});\n","// https://github.com/tc39/proposal-object-values-entries\nvar $export = require('./_export');\nvar $entries = require('./_object-to-array')(true);\n\n$export($export.S, 'Object', {\n entries: function entries(it) {\n return $entries(it);\n }\n});\n","// https://github.com/tc39/proposal-object-getownpropertydescriptors\nvar $export = require('./_export');\nvar ownKeys = require('./_own-keys');\nvar toIObject = require('./_to-iobject');\nvar gOPD = require('./_object-gopd');\nvar createProperty = require('./_create-property');\n\n$export($export.S, 'Object', {\n getOwnPropertyDescriptors: function getOwnPropertyDescriptors(object) {\n var O = toIObject(object);\n var getDesc = gOPD.f;\n var keys = ownKeys(O);\n var result = {};\n var i = 0;\n var key, desc;\n while (keys.length > i) {\n desc = getDesc(O, key = keys[i++]);\n if (desc !== undefined) createProperty(result, key, desc);\n }\n return result;\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar toObject = require('./_to-object');\nvar toPrimitive = require('./_to-primitive');\nvar getPrototypeOf = require('./_object-gpo');\nvar getOwnPropertyDescriptor = require('./_object-gopd').f;\n\n// B.2.2.4 Object.prototype.__lookupGetter__(P)\nrequire('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {\n __lookupGetter__: function __lookupGetter__(P) {\n var O = toObject(this);\n var K = toPrimitive(P, true);\n var D;\n do {\n if (D = getOwnPropertyDescriptor(O, K)) return D.get;\n } while (O = getPrototypeOf(O));\n }\n});\n","'use strict';\nvar $export = require('./_export');\nvar toObject = require('./_to-object');\nvar toPrimitive = require('./_to-primitive');\nvar getPrototypeOf = require('./_object-gpo');\nvar getOwnPropertyDescriptor = require('./_object-gopd').f;\n\n// B.2.2.5 Object.prototype.__lookupSetter__(P)\nrequire('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {\n __lookupSetter__: function __lookupSetter__(P) {\n var O = toObject(this);\n var K = toPrimitive(P, true);\n var D;\n do {\n if (D = getOwnPropertyDescriptor(O, K)) return D.set;\n } while (O = getPrototypeOf(O));\n }\n});\n","// https://github.com/tc39/proposal-object-values-entries\nvar $export = require('./_export');\nvar $values = require('./_object-to-array')(false);\n\n$export($export.S, 'Object', {\n values: function values(it) {\n return $values(it);\n }\n});\n","'use strict';\n// https://github.com/zenparsing/es-observable\nvar $export = require('./_export');\nvar global = require('./_global');\nvar core = require('./_core');\nvar microtask = require('./_microtask')();\nvar OBSERVABLE = require('./_wks')('observable');\nvar aFunction = require('./_a-function');\nvar anObject = require('./_an-object');\nvar anInstance = require('./_an-instance');\nvar redefineAll = require('./_redefine-all');\nvar hide = require('./_hide');\nvar forOf = require('./_for-of');\nvar RETURN = forOf.RETURN;\n\nvar getMethod = function (fn) {\n return fn == null ? undefined : aFunction(fn);\n};\n\nvar cleanupSubscription = function (subscription) {\n var cleanup = subscription._c;\n if (cleanup) {\n subscription._c = undefined;\n cleanup();\n }\n};\n\nvar subscriptionClosed = function (subscription) {\n return subscription._o === undefined;\n};\n\nvar closeSubscription = function (subscription) {\n if (!subscriptionClosed(subscription)) {\n subscription._o = undefined;\n cleanupSubscription(subscription);\n }\n};\n\nvar Subscription = function (observer, subscriber) {\n anObject(observer);\n this._c = undefined;\n this._o = observer;\n observer = new SubscriptionObserver(this);\n try {\n var cleanup = subscriber(observer);\n var subscription = cleanup;\n if (cleanup != null) {\n if (typeof cleanup.unsubscribe === 'function') cleanup = function () { subscription.unsubscribe(); };\n else aFunction(cleanup);\n this._c = cleanup;\n }\n } catch (e) {\n observer.error(e);\n return;\n } if (subscriptionClosed(this)) cleanupSubscription(this);\n};\n\nSubscription.prototype = redefineAll({}, {\n unsubscribe: function unsubscribe() { closeSubscription(this); }\n});\n\nvar SubscriptionObserver = function (subscription) {\n this._s = subscription;\n};\n\nSubscriptionObserver.prototype = redefineAll({}, {\n next: function next(value) {\n var subscription = this._s;\n if (!subscriptionClosed(subscription)) {\n var observer = subscription._o;\n try {\n var m = getMethod(observer.next);\n if (m) return m.call(observer, value);\n } catch (e) {\n try {\n closeSubscription(subscription);\n } finally {\n throw e;\n }\n }\n }\n },\n error: function error(value) {\n var subscription = this._s;\n if (subscriptionClosed(subscription)) throw value;\n var observer = subscription._o;\n subscription._o = undefined;\n try {\n var m = getMethod(observer.error);\n if (!m) throw value;\n value = m.call(observer, value);\n } catch (e) {\n try {\n cleanupSubscription(subscription);\n } finally {\n throw e;\n }\n } cleanupSubscription(subscription);\n return value;\n },\n complete: function complete(value) {\n var subscription = this._s;\n if (!subscriptionClosed(subscription)) {\n var observer = subscription._o;\n subscription._o = undefined;\n try {\n var m = getMethod(observer.complete);\n value = m ? m.call(observer, value) : undefined;\n } catch (e) {\n try {\n cleanupSubscription(subscription);\n } finally {\n throw e;\n }\n } cleanupSubscription(subscription);\n return value;\n }\n }\n});\n\nvar $Observable = function Observable(subscriber) {\n anInstance(this, $Observable, 'Observable', '_f')._f = aFunction(subscriber);\n};\n\nredefineAll($Observable.prototype, {\n subscribe: function subscribe(observer) {\n return new Subscription(observer, this._f);\n },\n forEach: function forEach(fn) {\n var that = this;\n return new (core.Promise || global.Promise)(function (resolve, reject) {\n aFunction(fn);\n var subscription = that.subscribe({\n next: function (value) {\n try {\n return fn(value);\n } catch (e) {\n reject(e);\n subscription.unsubscribe();\n }\n },\n error: reject,\n complete: resolve\n });\n });\n }\n});\n\nredefineAll($Observable, {\n from: function from(x) {\n var C = typeof this === 'function' ? this : $Observable;\n var method = getMethod(anObject(x)[OBSERVABLE]);\n if (method) {\n var observable = anObject(method.call(x));\n return observable.constructor === C ? observable : new C(function (observer) {\n return observable.subscribe(observer);\n });\n }\n return new C(function (observer) {\n var done = false;\n microtask(function () {\n if (!done) {\n try {\n if (forOf(x, false, function (it) {\n observer.next(it);\n if (done) return RETURN;\n }) === RETURN) return;\n } catch (e) {\n if (done) throw e;\n observer.error(e);\n return;\n } observer.complete();\n }\n });\n return function () { done = true; };\n });\n },\n of: function of() {\n for (var i = 0, l = arguments.length, items = new Array(l); i < l;) items[i] = arguments[i++];\n return new (typeof this === 'function' ? this : $Observable)(function (observer) {\n var done = false;\n microtask(function () {\n if (!done) {\n for (var j = 0; j < items.length; ++j) {\n observer.next(items[j]);\n if (done) return;\n } observer.complete();\n }\n });\n return function () { done = true; };\n });\n }\n});\n\nhide($Observable.prototype, OBSERVABLE, function () { return this; });\n\n$export($export.G, { Observable: $Observable });\n\nrequire('./_set-species')('Observable');\n","// https://github.com/tc39/proposal-promise-finally\n'use strict';\nvar $export = require('./_export');\nvar core = require('./_core');\nvar global = require('./_global');\nvar speciesConstructor = require('./_species-constructor');\nvar promiseResolve = require('./_promise-resolve');\n\n$export($export.P + $export.R, 'Promise', { 'finally': function (onFinally) {\n var C = speciesConstructor(this, core.Promise || global.Promise);\n var isFunction = typeof onFinally == 'function';\n return this.then(\n isFunction ? function (x) {\n return promiseResolve(C, onFinally()).then(function () { return x; });\n } : onFinally,\n isFunction ? function (e) {\n return promiseResolve(C, onFinally()).then(function () { throw e; });\n } : onFinally\n );\n} });\n","'use strict';\n// https://github.com/tc39/proposal-promise-try\nvar $export = require('./_export');\nvar newPromiseCapability = require('./_new-promise-capability');\nvar perform = require('./_perform');\n\n$export($export.S, 'Promise', { 'try': function (callbackfn) {\n var promiseCapability = newPromiseCapability.f(this);\n var result = perform(callbackfn);\n (result.e ? promiseCapability.reject : promiseCapability.resolve)(result.v);\n return promiseCapability.promise;\n} });\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar toMetaKey = metadata.key;\nvar ordinaryDefineOwnMetadata = metadata.set;\n\nmetadata.exp({ defineMetadata: function defineMetadata(metadataKey, metadataValue, target, targetKey) {\n ordinaryDefineOwnMetadata(metadataKey, metadataValue, anObject(target), toMetaKey(targetKey));\n} });\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar toMetaKey = metadata.key;\nvar getOrCreateMetadataMap = metadata.map;\nvar store = metadata.store;\n\nmetadata.exp({ deleteMetadata: function deleteMetadata(metadataKey, target /* , targetKey */) {\n var targetKey = arguments.length < 3 ? undefined : toMetaKey(arguments[2]);\n var metadataMap = getOrCreateMetadataMap(anObject(target), targetKey, false);\n if (metadataMap === undefined || !metadataMap['delete'](metadataKey)) return false;\n if (metadataMap.size) return true;\n var targetMetadata = store.get(target);\n targetMetadata['delete'](targetKey);\n return !!targetMetadata.size || store['delete'](target);\n} });\n","var Set = require('./es6.set');\nvar from = require('./_array-from-iterable');\nvar metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar getPrototypeOf = require('./_object-gpo');\nvar ordinaryOwnMetadataKeys = metadata.keys;\nvar toMetaKey = metadata.key;\n\nvar ordinaryMetadataKeys = function (O, P) {\n var oKeys = ordinaryOwnMetadataKeys(O, P);\n var parent = getPrototypeOf(O);\n if (parent === null) return oKeys;\n var pKeys = ordinaryMetadataKeys(parent, P);\n return pKeys.length ? oKeys.length ? from(new Set(oKeys.concat(pKeys))) : pKeys : oKeys;\n};\n\nmetadata.exp({ getMetadataKeys: function getMetadataKeys(target /* , targetKey */) {\n return ordinaryMetadataKeys(anObject(target), arguments.length < 2 ? undefined : toMetaKey(arguments[1]));\n} });\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar getPrototypeOf = require('./_object-gpo');\nvar ordinaryHasOwnMetadata = metadata.has;\nvar ordinaryGetOwnMetadata = metadata.get;\nvar toMetaKey = metadata.key;\n\nvar ordinaryGetMetadata = function (MetadataKey, O, P) {\n var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);\n if (hasOwn) return ordinaryGetOwnMetadata(MetadataKey, O, P);\n var parent = getPrototypeOf(O);\n return parent !== null ? ordinaryGetMetadata(MetadataKey, parent, P) : undefined;\n};\n\nmetadata.exp({ getMetadata: function getMetadata(metadataKey, target /* , targetKey */) {\n return ordinaryGetMetadata(metadataKey, anObject(target), arguments.length < 3 ? undefined : toMetaKey(arguments[2]));\n} });\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar ordinaryOwnMetadataKeys = metadata.keys;\nvar toMetaKey = metadata.key;\n\nmetadata.exp({ getOwnMetadataKeys: function getOwnMetadataKeys(target /* , targetKey */) {\n return ordinaryOwnMetadataKeys(anObject(target), arguments.length < 2 ? undefined : toMetaKey(arguments[1]));\n} });\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar ordinaryGetOwnMetadata = metadata.get;\nvar toMetaKey = metadata.key;\n\nmetadata.exp({ getOwnMetadata: function getOwnMetadata(metadataKey, target /* , targetKey */) {\n return ordinaryGetOwnMetadata(metadataKey, anObject(target)\n , arguments.length < 3 ? undefined : toMetaKey(arguments[2]));\n} });\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar getPrototypeOf = require('./_object-gpo');\nvar ordinaryHasOwnMetadata = metadata.has;\nvar toMetaKey = metadata.key;\n\nvar ordinaryHasMetadata = function (MetadataKey, O, P) {\n var hasOwn = ordinaryHasOwnMetadata(MetadataKey, O, P);\n if (hasOwn) return true;\n var parent = getPrototypeOf(O);\n return parent !== null ? ordinaryHasMetadata(MetadataKey, parent, P) : false;\n};\n\nmetadata.exp({ hasMetadata: function hasMetadata(metadataKey, target /* , targetKey */) {\n return ordinaryHasMetadata(metadataKey, anObject(target), arguments.length < 3 ? undefined : toMetaKey(arguments[2]));\n} });\n","var metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar ordinaryHasOwnMetadata = metadata.has;\nvar toMetaKey = metadata.key;\n\nmetadata.exp({ hasOwnMetadata: function hasOwnMetadata(metadataKey, target /* , targetKey */) {\n return ordinaryHasOwnMetadata(metadataKey, anObject(target)\n , arguments.length < 3 ? undefined : toMetaKey(arguments[2]));\n} });\n","var $metadata = require('./_metadata');\nvar anObject = require('./_an-object');\nvar aFunction = require('./_a-function');\nvar toMetaKey = $metadata.key;\nvar ordinaryDefineOwnMetadata = $metadata.set;\n\n$metadata.exp({ metadata: function metadata(metadataKey, metadataValue) {\n return function decorator(target, targetKey) {\n ordinaryDefineOwnMetadata(\n metadataKey, metadataValue,\n (targetKey !== undefined ? anObject : aFunction)(target),\n toMetaKey(targetKey)\n );\n };\n} });\n","// https://tc39.github.io/proposal-setmap-offrom/#sec-set.from\nrequire('./_set-collection-from')('Set');\n","// https://tc39.github.io/proposal-setmap-offrom/#sec-set.of\nrequire('./_set-collection-of')('Set');\n","// https://github.com/DavidBruant/Map-Set.prototype.toJSON\nvar $export = require('./_export');\n\n$export($export.P + $export.R, 'Set', { toJSON: require('./_collection-to-json')('Set') });\n","'use strict';\n// https://github.com/mathiasbynens/String.prototype.at\nvar $export = require('./_export');\nvar $at = require('./_string-at')(true);\n\n$export($export.P, 'String', {\n at: function at(pos) {\n return $at(this, pos);\n }\n});\n","'use strict';\n// https://tc39.github.io/String.prototype.matchAll/\nvar $export = require('./_export');\nvar defined = require('./_defined');\nvar toLength = require('./_to-length');\nvar isRegExp = require('./_is-regexp');\nvar getFlags = require('./_flags');\nvar RegExpProto = RegExp.prototype;\n\nvar $RegExpStringIterator = function (regexp, string) {\n this._r = regexp;\n this._s = string;\n};\n\nrequire('./_iter-create')($RegExpStringIterator, 'RegExp String', function next() {\n var match = this._r.exec(this._s);\n return { value: match, done: match === null };\n});\n\n$export($export.P, 'String', {\n matchAll: function matchAll(regexp) {\n defined(this);\n if (!isRegExp(regexp)) throw TypeError(regexp + ' is not a regexp!');\n var S = String(this);\n var flags = 'flags' in RegExpProto ? String(regexp.flags) : getFlags.call(regexp);\n var rx = new RegExp(regexp.source, ~flags.indexOf('g') ? flags : 'g' + flags);\n rx.lastIndex = toLength(regexp.lastIndex);\n return new $RegExpStringIterator(rx, S);\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-string-pad-start-end\nvar $export = require('./_export');\nvar $pad = require('./_string-pad');\nvar userAgent = require('./_user-agent');\n\n// https://github.com/zloirock/core-js/issues/280\n$export($export.P + $export.F * /Version\\/10\\.\\d+(\\.\\d+)? Safari\\//.test(userAgent), 'String', {\n padEnd: function padEnd(maxLength /* , fillString = ' ' */) {\n return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, false);\n }\n});\n","'use strict';\n// https://github.com/tc39/proposal-string-pad-start-end\nvar $export = require('./_export');\nvar $pad = require('./_string-pad');\nvar userAgent = require('./_user-agent');\n\n// https://github.com/zloirock/core-js/issues/280\n$export($export.P + $export.F * /Version\\/10\\.\\d+(\\.\\d+)? Safari\\//.test(userAgent), 'String', {\n padStart: function padStart(maxLength /* , fillString = ' ' */) {\n return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, true);\n }\n});\n","'use strict';\n// https://github.com/sebmarkbage/ecmascript-string-left-right-trim\nrequire('./_string-trim')('trimLeft', function ($trim) {\n return function trimLeft() {\n return $trim(this, 1);\n };\n}, 'trimStart');\n","'use strict';\n// https://github.com/sebmarkbage/ecmascript-string-left-right-trim\nrequire('./_string-trim')('trimRight', function ($trim) {\n return function trimRight() {\n return $trim(this, 2);\n };\n}, 'trimEnd');\n","require('./_wks-define')('asyncIterator');\n","require('./_wks-define')('observable');\n","// https://github.com/tc39/proposal-global\nvar $export = require('./_export');\n\n$export($export.S, 'System', { global: require('./_global') });\n","// https://tc39.github.io/proposal-setmap-offrom/#sec-weakmap.from\nrequire('./_set-collection-from')('WeakMap');\n","// https://tc39.github.io/proposal-setmap-offrom/#sec-weakmap.of\nrequire('./_set-collection-of')('WeakMap');\n","// https://tc39.github.io/proposal-setmap-offrom/#sec-weakset.from\nrequire('./_set-collection-from')('WeakSet');\n","// https://tc39.github.io/proposal-setmap-offrom/#sec-weakset.of\nrequire('./_set-collection-of')('WeakSet');\n","var $iterators = require('./es6.array.iterator');\nvar getKeys = require('./_object-keys');\nvar redefine = require('./_redefine');\nvar global = require('./_global');\nvar hide = require('./_hide');\nvar Iterators = require('./_iterators');\nvar wks = require('./_wks');\nvar ITERATOR = wks('iterator');\nvar TO_STRING_TAG = wks('toStringTag');\nvar ArrayValues = Iterators.Array;\n\nvar DOMIterables = {\n CSSRuleList: true, // TODO: Not spec compliant, should be false.\n CSSStyleDeclaration: false,\n CSSValueList: false,\n ClientRectList: false,\n DOMRectList: false,\n DOMStringList: false,\n DOMTokenList: true,\n DataTransferItemList: false,\n FileList: false,\n HTMLAllCollection: false,\n HTMLCollection: false,\n HTMLFormElement: false,\n HTMLSelectElement: false,\n MediaList: true, // TODO: Not spec compliant, should be false.\n MimeTypeArray: false,\n NamedNodeMap: false,\n NodeList: true,\n PaintRequestList: false,\n Plugin: false,\n PluginArray: false,\n SVGLengthList: false,\n SVGNumberList: false,\n SVGPathSegList: false,\n SVGPointList: false,\n SVGStringList: false,\n SVGTransformList: false,\n SourceBufferList: false,\n StyleSheetList: true, // TODO: Not spec compliant, should be false.\n TextTrackCueList: false,\n TextTrackList: false,\n TouchList: false\n};\n\nfor (var collections = getKeys(DOMIterables), i = 0; i < collections.length; i++) {\n var NAME = collections[i];\n var explicit = DOMIterables[NAME];\n var Collection = global[NAME];\n var proto = Collection && Collection.prototype;\n var key;\n if (proto) {\n if (!proto[ITERATOR]) hide(proto, ITERATOR, ArrayValues);\n if (!proto[TO_STRING_TAG]) hide(proto, TO_STRING_TAG, NAME);\n Iterators[NAME] = ArrayValues;\n if (explicit) for (key in $iterators) if (!proto[key]) redefine(proto, key, $iterators[key], true);\n }\n}\n","var $export = require('./_export');\nvar $task = require('./_task');\n$export($export.G + $export.B, {\n setImmediate: $task.set,\n clearImmediate: $task.clear\n});\n","// ie9- setTimeout & setInterval additional parameters fix\nvar global = require('./_global');\nvar $export = require('./_export');\nvar userAgent = require('./_user-agent');\nvar slice = [].slice;\nvar MSIE = /MSIE .\\./.test(userAgent); // <- dirty ie9- check\nvar wrap = function (set) {\n return function (fn, time /* , ...args */) {\n var boundArgs = arguments.length > 2;\n var args = boundArgs ? slice.call(arguments, 2) : false;\n return set(boundArgs ? function () {\n // eslint-disable-next-line no-new-func\n (typeof fn == 'function' ? fn : Function(fn)).apply(this, args);\n } : fn, time);\n };\n};\n$export($export.G + $export.B + $export.F * MSIE, {\n setTimeout: wrap(global.setTimeout),\n setInterval: wrap(global.setInterval)\n});\n","require('./modules/es6.symbol');\nrequire('./modules/es6.object.create');\nrequire('./modules/es6.object.define-property');\nrequire('./modules/es6.object.define-properties');\nrequire('./modules/es6.object.get-own-property-descriptor');\nrequire('./modules/es6.object.get-prototype-of');\nrequire('./modules/es6.object.keys');\nrequire('./modules/es6.object.get-own-property-names');\nrequire('./modules/es6.object.freeze');\nrequire('./modules/es6.object.seal');\nrequire('./modules/es6.object.prevent-extensions');\nrequire('./modules/es6.object.is-frozen');\nrequire('./modules/es6.object.is-sealed');\nrequire('./modules/es6.object.is-extensible');\nrequire('./modules/es6.object.assign');\nrequire('./modules/es6.object.is');\nrequire('./modules/es6.object.set-prototype-of');\nrequire('./modules/es6.object.to-string');\nrequire('./modules/es6.function.bind');\nrequire('./modules/es6.function.name');\nrequire('./modules/es6.function.has-instance');\nrequire('./modules/es6.parse-int');\nrequire('./modules/es6.parse-float');\nrequire('./modules/es6.number.constructor');\nrequire('./modules/es6.number.to-fixed');\nrequire('./modules/es6.number.to-precision');\nrequire('./modules/es6.number.epsilon');\nrequire('./modules/es6.number.is-finite');\nrequire('./modules/es6.number.is-integer');\nrequire('./modules/es6.number.is-nan');\nrequire('./modules/es6.number.is-safe-integer');\nrequire('./modules/es6.number.max-safe-integer');\nrequire('./modules/es6.number.min-safe-integer');\nrequire('./modules/es6.number.parse-float');\nrequire('./modules/es6.number.parse-int');\nrequire('./modules/es6.math.acosh');\nrequire('./modules/es6.math.asinh');\nrequire('./modules/es6.math.atanh');\nrequire('./modules/es6.math.cbrt');\nrequire('./modules/es6.math.clz32');\nrequire('./modules/es6.math.cosh');\nrequire('./modules/es6.math.expm1');\nrequire('./modules/es6.math.fround');\nrequire('./modules/es6.math.hypot');\nrequire('./modules/es6.math.imul');\nrequire('./modules/es6.math.log10');\nrequire('./modules/es6.math.log1p');\nrequire('./modules/es6.math.log2');\nrequire('./modules/es6.math.sign');\nrequire('./modules/es6.math.sinh');\nrequire('./modules/es6.math.tanh');\nrequire('./modules/es6.math.trunc');\nrequire('./modules/es6.string.from-code-point');\nrequire('./modules/es6.string.raw');\nrequire('./modules/es6.string.trim');\nrequire('./modules/es6.string.iterator');\nrequire('./modules/es6.string.code-point-at');\nrequire('./modules/es6.string.ends-with');\nrequire('./modules/es6.string.includes');\nrequire('./modules/es6.string.repeat');\nrequire('./modules/es6.string.starts-with');\nrequire('./modules/es6.string.anchor');\nrequire('./modules/es6.string.big');\nrequire('./modules/es6.string.blink');\nrequire('./modules/es6.string.bold');\nrequire('./modules/es6.string.fixed');\nrequire('./modules/es6.string.fontcolor');\nrequire('./modules/es6.string.fontsize');\nrequire('./modules/es6.string.italics');\nrequire('./modules/es6.string.link');\nrequire('./modules/es6.string.small');\nrequire('./modules/es6.string.strike');\nrequire('./modules/es6.string.sub');\nrequire('./modules/es6.string.sup');\nrequire('./modules/es6.date.now');\nrequire('./modules/es6.date.to-json');\nrequire('./modules/es6.date.to-iso-string');\nrequire('./modules/es6.date.to-string');\nrequire('./modules/es6.date.to-primitive');\nrequire('./modules/es6.array.is-array');\nrequire('./modules/es6.array.from');\nrequire('./modules/es6.array.of');\nrequire('./modules/es6.array.join');\nrequire('./modules/es6.array.slice');\nrequire('./modules/es6.array.sort');\nrequire('./modules/es6.array.for-each');\nrequire('./modules/es6.array.map');\nrequire('./modules/es6.array.filter');\nrequire('./modules/es6.array.some');\nrequire('./modules/es6.array.every');\nrequire('./modules/es6.array.reduce');\nrequire('./modules/es6.array.reduce-right');\nrequire('./modules/es6.array.index-of');\nrequire('./modules/es6.array.last-index-of');\nrequire('./modules/es6.array.copy-within');\nrequire('./modules/es6.array.fill');\nrequire('./modules/es6.array.find');\nrequire('./modules/es6.array.find-index');\nrequire('./modules/es6.array.species');\nrequire('./modules/es6.array.iterator');\nrequire('./modules/es6.regexp.constructor');\nrequire('./modules/es6.regexp.to-string');\nrequire('./modules/es6.regexp.flags');\nrequire('./modules/es6.regexp.match');\nrequire('./modules/es6.regexp.replace');\nrequire('./modules/es6.regexp.search');\nrequire('./modules/es6.regexp.split');\nrequire('./modules/es6.promise');\nrequire('./modules/es6.map');\nrequire('./modules/es6.set');\nrequire('./modules/es6.weak-map');\nrequire('./modules/es6.weak-set');\nrequire('./modules/es6.typed.array-buffer');\nrequire('./modules/es6.typed.data-view');\nrequire('./modules/es6.typed.int8-array');\nrequire('./modules/es6.typed.uint8-array');\nrequire('./modules/es6.typed.uint8-clamped-array');\nrequire('./modules/es6.typed.int16-array');\nrequire('./modules/es6.typed.uint16-array');\nrequire('./modules/es6.typed.int32-array');\nrequire('./modules/es6.typed.uint32-array');\nrequire('./modules/es6.typed.float32-array');\nrequire('./modules/es6.typed.float64-array');\nrequire('./modules/es6.reflect.apply');\nrequire('./modules/es6.reflect.construct');\nrequire('./modules/es6.reflect.define-property');\nrequire('./modules/es6.reflect.delete-property');\nrequire('./modules/es6.reflect.enumerate');\nrequire('./modules/es6.reflect.get');\nrequire('./modules/es6.reflect.get-own-property-descriptor');\nrequire('./modules/es6.reflect.get-prototype-of');\nrequire('./modules/es6.reflect.has');\nrequire('./modules/es6.reflect.is-extensible');\nrequire('./modules/es6.reflect.own-keys');\nrequire('./modules/es6.reflect.prevent-extensions');\nrequire('./modules/es6.reflect.set');\nrequire('./modules/es6.reflect.set-prototype-of');\nrequire('./modules/es7.array.includes');\nrequire('./modules/es7.array.flat-map');\nrequire('./modules/es7.array.flatten');\nrequire('./modules/es7.string.at');\nrequire('./modules/es7.string.pad-start');\nrequire('./modules/es7.string.pad-end');\nrequire('./modules/es7.string.trim-left');\nrequire('./modules/es7.string.trim-right');\nrequire('./modules/es7.string.match-all');\nrequire('./modules/es7.symbol.async-iterator');\nrequire('./modules/es7.symbol.observable');\nrequire('./modules/es7.object.get-own-property-descriptors');\nrequire('./modules/es7.object.values');\nrequire('./modules/es7.object.entries');\nrequire('./modules/es7.object.define-getter');\nrequire('./modules/es7.object.define-setter');\nrequire('./modules/es7.object.lookup-getter');\nrequire('./modules/es7.object.lookup-setter');\nrequire('./modules/es7.map.to-json');\nrequire('./modules/es7.set.to-json');\nrequire('./modules/es7.map.of');\nrequire('./modules/es7.set.of');\nrequire('./modules/es7.weak-map.of');\nrequire('./modules/es7.weak-set.of');\nrequire('./modules/es7.map.from');\nrequire('./modules/es7.set.from');\nrequire('./modules/es7.weak-map.from');\nrequire('./modules/es7.weak-set.from');\nrequire('./modules/es7.global');\nrequire('./modules/es7.system.global');\nrequire('./modules/es7.error.is-error');\nrequire('./modules/es7.math.clamp');\nrequire('./modules/es7.math.deg-per-rad');\nrequire('./modules/es7.math.degrees');\nrequire('./modules/es7.math.fscale');\nrequire('./modules/es7.math.iaddh');\nrequire('./modules/es7.math.isubh');\nrequire('./modules/es7.math.imulh');\nrequire('./modules/es7.math.rad-per-deg');\nrequire('./modules/es7.math.radians');\nrequire('./modules/es7.math.scale');\nrequire('./modules/es7.math.umulh');\nrequire('./modules/es7.math.signbit');\nrequire('./modules/es7.promise.finally');\nrequire('./modules/es7.promise.try');\nrequire('./modules/es7.reflect.define-metadata');\nrequire('./modules/es7.reflect.delete-metadata');\nrequire('./modules/es7.reflect.get-metadata');\nrequire('./modules/es7.reflect.get-metadata-keys');\nrequire('./modules/es7.reflect.get-own-metadata');\nrequire('./modules/es7.reflect.get-own-metadata-keys');\nrequire('./modules/es7.reflect.has-metadata');\nrequire('./modules/es7.reflect.has-own-metadata');\nrequire('./modules/es7.reflect.metadata');\nrequire('./modules/es7.asap');\nrequire('./modules/es7.observable');\nrequire('./modules/web.timers');\nrequire('./modules/web.immediate');\nrequire('./modules/web.dom.iterable');\nmodule.exports = require('./modules/_core');\n","'use strict';\n\nvar isCallable = require('is-callable');\n\nvar toStr = Object.prototype.toString;\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\nvar forEachArray = function forEachArray(array, iterator, receiver) {\n for (var i = 0, len = array.length; i < len; i++) {\n if (hasOwnProperty.call(array, i)) {\n if (receiver == null) {\n iterator(array[i], i, array);\n } else {\n iterator.call(receiver, array[i], i, array);\n }\n }\n }\n};\n\nvar forEachString = function forEachString(string, iterator, receiver) {\n for (var i = 0, len = string.length; i < len; i++) {\n // no such thing as a sparse string.\n if (receiver == null) {\n iterator(string.charAt(i), i, string);\n } else {\n iterator.call(receiver, string.charAt(i), i, string);\n }\n }\n};\n\nvar forEachObject = function forEachObject(object, iterator, receiver) {\n for (var k in object) {\n if (hasOwnProperty.call(object, k)) {\n if (receiver == null) {\n iterator(object[k], k, object);\n } else {\n iterator.call(receiver, object[k], k, object);\n }\n }\n }\n};\n\nvar forEach = function forEach(list, iterator, thisArg) {\n if (!isCallable(iterator)) {\n throw new TypeError('iterator must be a function');\n }\n\n var receiver;\n if (arguments.length >= 3) {\n receiver = thisArg;\n }\n\n if (toStr.call(list) === '[object Array]') {\n forEachArray(list, iterator, receiver);\n } else if (typeof list === 'string') {\n forEachString(list, iterator, receiver);\n } else {\n forEachObject(list, iterator, receiver);\n }\n};\n\nmodule.exports = forEach;\n","var topLevel = typeof global !== 'undefined' ? global :\n typeof window !== 'undefined' ? window : {}\nvar minDoc = require('min-document');\n\nvar doccy;\n\nif (typeof document !== 'undefined') {\n doccy = document;\n} else {\n doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];\n\n if (!doccy) {\n doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;\n }\n}\n\nmodule.exports = doccy;\n","var win;\n\nif (typeof window !== \"undefined\") {\n win = window;\n} else if (typeof global !== \"undefined\") {\n win = global;\n} else if (typeof self !== \"undefined\"){\n win = self;\n} else {\n win = {};\n}\n\nmodule.exports = win;\n","'use strict';\n\nvar fnToStr = Function.prototype.toString;\n\nvar constructorRegex = /^\\s*class\\b/;\nvar isES6ClassFn = function isES6ClassFunction(value) {\n\ttry {\n\t\tvar fnStr = fnToStr.call(value);\n\t\treturn constructorRegex.test(fnStr);\n\t} catch (e) {\n\t\treturn false; // not a function\n\t}\n};\n\nvar tryFunctionObject = function tryFunctionToStr(value) {\n\ttry {\n\t\tif (isES6ClassFn(value)) { return false; }\n\t\tfnToStr.call(value);\n\t\treturn true;\n\t} catch (e) {\n\t\treturn false;\n\t}\n};\nvar toStr = Object.prototype.toString;\nvar fnClass = '[object Function]';\nvar genClass = '[object GeneratorFunction]';\nvar hasToStringTag = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol';\n\nmodule.exports = function isCallable(value) {\n\tif (!value) { return false; }\n\tif (typeof value !== 'function' && typeof value !== 'object') { return false; }\n\tif (typeof value === 'function' && !value.prototype) { return true; }\n\tif (hasToStringTag) { return tryFunctionObject(value); }\n\tif (isES6ClassFn(value)) { return false; }\n\tvar strClass = toStr.call(value);\n\treturn strClass === fnClass || strClass === genClass;\n};\n","module.exports = isFunction\n\nvar toString = Object.prototype.toString\n\nfunction isFunction (fn) {\n var string = toString.call(fn)\n return string === '[object Function]' ||\n (typeof fn === 'function' && string !== '[object RegExp]') ||\n (typeof window !== 'undefined' &&\n // IE8 and below\n (fn === window.setTimeout ||\n fn === window.alert ||\n fn === window.confirm ||\n fn === window.prompt))\n};\n","var trim = require('trim')\n , forEach = require('for-each')\n , isArray = function(arg) {\n return Object.prototype.toString.call(arg) === '[object Array]';\n }\n\nmodule.exports = function (headers) {\n if (!headers)\n return {}\n\n var result = {}\n\n forEach(\n trim(headers).split('\\n')\n , function (row) {\n var index = row.indexOf(':')\n , key = trim(row.slice(0, index)).toLowerCase()\n , value = trim(row.slice(index + 1))\n\n if (typeof(result[key]) === 'undefined') {\n result[key] = value\n } else if (isArray(result[key])) {\n result[key].push(value)\n } else {\n result[key] = [ result[key], value ]\n }\n }\n )\n\n return result\n}","module.exports = SafeParseTuple\n\nfunction SafeParseTuple(obj, reviver) {\n var json\n var error = null\n\n try {\n json = JSON.parse(obj, reviver)\n } catch (err) {\n error = err\n }\n\n return [error, json]\n}\n","\nexports = module.exports = trim;\n\nfunction trim(str){\n return str.replace(/^\\s*|\\s*$/g, '');\n}\n\nexports.left = function(str){\n return str.replace(/^\\s*/, '');\n};\n\nexports.right = function(str){\n return str.replace(/\\s*$/, '');\n};\n","function clean (s) {\n return s.replace(/\\n\\r?\\s*/g, '')\n}\n\n\nmodule.exports = function tsml (sa) {\n var s = ''\n , i = 0\n\n for (; i < arguments.length; i++)\n s += clean(sa[i]) + (arguments[i + 1] || '')\n\n return s\n}","// Underscore.js 1.9.1\n// http://underscorejs.org\n// (c) 2009-2018 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n// Underscore may be freely distributed under the MIT license.\n\n(function() {\n\n // Baseline setup\n // --------------\n\n // Establish the root object, `window` (`self`) in the browser, `global`\n // on the server, or `this` in some virtual machines. We use `self`\n // instead of `window` for `WebWorker` support.\n var root = typeof self == 'object' && self.self === self && self ||\n typeof global == 'object' && global.global === global && global ||\n this ||\n {};\n\n // Save the previous value of the `_` variable.\n var previousUnderscore = root._;\n\n // Save bytes in the minified (but not gzipped) version:\n var ArrayProto = Array.prototype, ObjProto = Object.prototype;\n var SymbolProto = typeof Symbol !== 'undefined' ? Symbol.prototype : null;\n\n // Create quick reference variables for speed access to core prototypes.\n var push = ArrayProto.push,\n slice = ArrayProto.slice,\n toString = ObjProto.toString,\n hasOwnProperty = ObjProto.hasOwnProperty;\n\n // All **ECMAScript 5** native function implementations that we hope to use\n // are declared here.\n var nativeIsArray = Array.isArray,\n nativeKeys = Object.keys,\n nativeCreate = Object.create;\n\n // Naked function reference for surrogate-prototype-swapping.\n var Ctor = function(){};\n\n // Create a safe reference to the Underscore object for use below.\n var _ = function(obj) {\n if (obj instanceof _) return obj;\n if (!(this instanceof _)) return new _(obj);\n this._wrapped = obj;\n };\n\n // Export the Underscore object for **Node.js**, with\n // backwards-compatibility for their old module API. If we're in\n // the browser, add `_` as a global object.\n // (`nodeType` is checked to ensure that `module`\n // and `exports` are not HTML elements.)\n if (typeof exports != 'undefined' && !exports.nodeType) {\n if (typeof module != 'undefined' && !module.nodeType && module.exports) {\n exports = module.exports = _;\n }\n exports._ = _;\n } else {\n root._ = _;\n }\n\n // Current version.\n _.VERSION = '1.9.1';\n\n // Internal function that returns an efficient (for current engines) version\n // of the passed-in callback, to be repeatedly applied in other Underscore\n // functions.\n var optimizeCb = function(func, context, argCount) {\n if (context === void 0) return func;\n switch (argCount == null ? 3 : argCount) {\n case 1: return function(value) {\n return func.call(context, value);\n };\n // The 2-argument case is omitted because we’re not using it.\n case 3: return function(value, index, collection) {\n return func.call(context, value, index, collection);\n };\n case 4: return function(accumulator, value, index, collection) {\n return func.call(context, accumulator, value, index, collection);\n };\n }\n return function() {\n return func.apply(context, arguments);\n };\n };\n\n var builtinIteratee;\n\n // An internal function to generate callbacks that can be applied to each\n // element in a collection, returning the desired result — either `identity`,\n // an arbitrary callback, a property matcher, or a property accessor.\n var cb = function(value, context, argCount) {\n if (_.iteratee !== builtinIteratee) return _.iteratee(value, context);\n if (value == null) return _.identity;\n if (_.isFunction(value)) return optimizeCb(value, context, argCount);\n if (_.isObject(value) && !_.isArray(value)) return _.matcher(value);\n return _.property(value);\n };\n\n // External wrapper for our callback generator. Users may customize\n // `_.iteratee` if they want additional predicate/iteratee shorthand styles.\n // This abstraction hides the internal-only argCount argument.\n _.iteratee = builtinIteratee = function(value, context) {\n return cb(value, context, Infinity);\n };\n\n // Some functions take a variable number of arguments, or a few expected\n // arguments at the beginning and then a variable number of values to operate\n // on. This helper accumulates all remaining arguments past the function’s\n // argument length (or an explicit `startIndex`), into an array that becomes\n // the last argument. Similar to ES6’s \"rest parameter\".\n var restArguments = function(func, startIndex) {\n startIndex = startIndex == null ? func.length - 1 : +startIndex;\n return function() {\n var length = Math.max(arguments.length - startIndex, 0),\n rest = Array(length),\n index = 0;\n for (; index < length; index++) {\n rest[index] = arguments[index + startIndex];\n }\n switch (startIndex) {\n case 0: return func.call(this, rest);\n case 1: return func.call(this, arguments[0], rest);\n case 2: return func.call(this, arguments[0], arguments[1], rest);\n }\n var args = Array(startIndex + 1);\n for (index = 0; index < startIndex; index++) {\n args[index] = arguments[index];\n }\n args[startIndex] = rest;\n return func.apply(this, args);\n };\n };\n\n // An internal function for creating a new object that inherits from another.\n var baseCreate = function(prototype) {\n if (!_.isObject(prototype)) return {};\n if (nativeCreate) return nativeCreate(prototype);\n Ctor.prototype = prototype;\n var result = new Ctor;\n Ctor.prototype = null;\n return result;\n };\n\n var shallowProperty = function(key) {\n return function(obj) {\n return obj == null ? void 0 : obj[key];\n };\n };\n\n var has = function(obj, path) {\n return obj != null && hasOwnProperty.call(obj, path);\n }\n\n var deepGet = function(obj, path) {\n var length = path.length;\n for (var i = 0; i < length; i++) {\n if (obj == null) return void 0;\n obj = obj[path[i]];\n }\n return length ? obj : void 0;\n };\n\n // Helper for collection methods to determine whether a collection\n // should be iterated as an array or as an object.\n // Related: http://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength\n // Avoids a very nasty iOS 8 JIT bug on ARM-64. #2094\n var MAX_ARRAY_INDEX = Math.pow(2, 53) - 1;\n var getLength = shallowProperty('length');\n var isArrayLike = function(collection) {\n var length = getLength(collection);\n return typeof length == 'number' && length >= 0 && length <= MAX_ARRAY_INDEX;\n };\n\n // Collection Functions\n // --------------------\n\n // The cornerstone, an `each` implementation, aka `forEach`.\n // Handles raw objects in addition to array-likes. Treats all\n // sparse array-likes as if they were dense.\n _.each = _.forEach = function(obj, iteratee, context) {\n iteratee = optimizeCb(iteratee, context);\n var i, length;\n if (isArrayLike(obj)) {\n for (i = 0, length = obj.length; i < length; i++) {\n iteratee(obj[i], i, obj);\n }\n } else {\n var keys = _.keys(obj);\n for (i = 0, length = keys.length; i < length; i++) {\n iteratee(obj[keys[i]], keys[i], obj);\n }\n }\n return obj;\n };\n\n // Return the results of applying the iteratee to each element.\n _.map = _.collect = function(obj, iteratee, context) {\n iteratee = cb(iteratee, context);\n var keys = !isArrayLike(obj) && _.keys(obj),\n length = (keys || obj).length,\n results = Array(length);\n for (var index = 0; index < length; index++) {\n var currentKey = keys ? keys[index] : index;\n results[index] = iteratee(obj[currentKey], currentKey, obj);\n }\n return results;\n };\n\n // Create a reducing function iterating left or right.\n var createReduce = function(dir) {\n // Wrap code that reassigns argument variables in a separate function than\n // the one that accesses `arguments.length` to avoid a perf hit. (#1991)\n var reducer = function(obj, iteratee, memo, initial) {\n var keys = !isArrayLike(obj) && _.keys(obj),\n length = (keys || obj).length,\n index = dir > 0 ? 0 : length - 1;\n if (!initial) {\n memo = obj[keys ? keys[index] : index];\n index += dir;\n }\n for (; index >= 0 && index < length; index += dir) {\n var currentKey = keys ? keys[index] : index;\n memo = iteratee(memo, obj[currentKey], currentKey, obj);\n }\n return memo;\n };\n\n return function(obj, iteratee, memo, context) {\n var initial = arguments.length >= 3;\n return reducer(obj, optimizeCb(iteratee, context, 4), memo, initial);\n };\n };\n\n // **Reduce** builds up a single result from a list of values, aka `inject`,\n // or `foldl`.\n _.reduce = _.foldl = _.inject = createReduce(1);\n\n // The right-associative version of reduce, also known as `foldr`.\n _.reduceRight = _.foldr = createReduce(-1);\n\n // Return the first value which passes a truth test. Aliased as `detect`.\n _.find = _.detect = function(obj, predicate, context) {\n var keyFinder = isArrayLike(obj) ? _.findIndex : _.findKey;\n var key = keyFinder(obj, predicate, context);\n if (key !== void 0 && key !== -1) return obj[key];\n };\n\n // Return all the elements that pass a truth test.\n // Aliased as `select`.\n _.filter = _.select = function(obj, predicate, context) {\n var results = [];\n predicate = cb(predicate, context);\n _.each(obj, function(value, index, list) {\n if (predicate(value, index, list)) results.push(value);\n });\n return results;\n };\n\n // Return all the elements for which a truth test fails.\n _.reject = function(obj, predicate, context) {\n return _.filter(obj, _.negate(cb(predicate)), context);\n };\n\n // Determine whether all of the elements match a truth test.\n // Aliased as `all`.\n _.every = _.all = function(obj, predicate, context) {\n predicate = cb(predicate, context);\n var keys = !isArrayLike(obj) && _.keys(obj),\n length = (keys || obj).length;\n for (var index = 0; index < length; index++) {\n var currentKey = keys ? keys[index] : index;\n if (!predicate(obj[currentKey], currentKey, obj)) return false;\n }\n return true;\n };\n\n // Determine if at least one element in the object matches a truth test.\n // Aliased as `any`.\n _.some = _.any = function(obj, predicate, context) {\n predicate = cb(predicate, context);\n var keys = !isArrayLike(obj) && _.keys(obj),\n length = (keys || obj).length;\n for (var index = 0; index < length; index++) {\n var currentKey = keys ? keys[index] : index;\n if (predicate(obj[currentKey], currentKey, obj)) return true;\n }\n return false;\n };\n\n // Determine if the array or object contains a given item (using `===`).\n // Aliased as `includes` and `include`.\n _.contains = _.includes = _.include = function(obj, item, fromIndex, guard) {\n if (!isArrayLike(obj)) obj = _.values(obj);\n if (typeof fromIndex != 'number' || guard) fromIndex = 0;\n return _.indexOf(obj, item, fromIndex) >= 0;\n };\n\n // Invoke a method (with arguments) on every item in a collection.\n _.invoke = restArguments(function(obj, path, args) {\n var contextPath, func;\n if (_.isFunction(path)) {\n func = path;\n } else if (_.isArray(path)) {\n contextPath = path.slice(0, -1);\n path = path[path.length - 1];\n }\n return _.map(obj, function(context) {\n var method = func;\n if (!method) {\n if (contextPath && contextPath.length) {\n context = deepGet(context, contextPath);\n }\n if (context == null) return void 0;\n method = context[path];\n }\n return method == null ? method : method.apply(context, args);\n });\n });\n\n // Convenience version of a common use case of `map`: fetching a property.\n _.pluck = function(obj, key) {\n return _.map(obj, _.property(key));\n };\n\n // Convenience version of a common use case of `filter`: selecting only objects\n // containing specific `key:value` pairs.\n _.where = function(obj, attrs) {\n return _.filter(obj, _.matcher(attrs));\n };\n\n // Convenience version of a common use case of `find`: getting the first object\n // containing specific `key:value` pairs.\n _.findWhere = function(obj, attrs) {\n return _.find(obj, _.matcher(attrs));\n };\n\n // Return the maximum element (or element-based computation).\n _.max = function(obj, iteratee, context) {\n var result = -Infinity, lastComputed = -Infinity,\n value, computed;\n if (iteratee == null || typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null) {\n obj = isArrayLike(obj) ? obj : _.values(obj);\n for (var i = 0, length = obj.length; i < length; i++) {\n value = obj[i];\n if (value != null && value > result) {\n result = value;\n }\n }\n } else {\n iteratee = cb(iteratee, context);\n _.each(obj, function(v, index, list) {\n computed = iteratee(v, index, list);\n if (computed > lastComputed || computed === -Infinity && result === -Infinity) {\n result = v;\n lastComputed = computed;\n }\n });\n }\n return result;\n };\n\n // Return the minimum element (or element-based computation).\n _.min = function(obj, iteratee, context) {\n var result = Infinity, lastComputed = Infinity,\n value, computed;\n if (iteratee == null || typeof iteratee == 'number' && typeof obj[0] != 'object' && obj != null) {\n obj = isArrayLike(obj) ? obj : _.values(obj);\n for (var i = 0, length = obj.length; i < length; i++) {\n value = obj[i];\n if (value != null && value < result) {\n result = value;\n }\n }\n } else {\n iteratee = cb(iteratee, context);\n _.each(obj, function(v, index, list) {\n computed = iteratee(v, index, list);\n if (computed < lastComputed || computed === Infinity && result === Infinity) {\n result = v;\n lastComputed = computed;\n }\n });\n }\n return result;\n };\n\n // Shuffle a collection.\n _.shuffle = function(obj) {\n return _.sample(obj, Infinity);\n };\n\n // Sample **n** random values from a collection using the modern version of the\n // [Fisher-Yates shuffle](http://en.wikipedia.org/wiki/Fisher–Yates_shuffle).\n // If **n** is not specified, returns a single random element.\n // The internal `guard` argument allows it to work with `map`.\n _.sample = function(obj, n, guard) {\n if (n == null || guard) {\n if (!isArrayLike(obj)) obj = _.values(obj);\n return obj[_.random(obj.length - 1)];\n }\n var sample = isArrayLike(obj) ? _.clone(obj) : _.values(obj);\n var length = getLength(sample);\n n = Math.max(Math.min(n, length), 0);\n var last = length - 1;\n for (var index = 0; index < n; index++) {\n var rand = _.random(index, last);\n var temp = sample[index];\n sample[index] = sample[rand];\n sample[rand] = temp;\n }\n return sample.slice(0, n);\n };\n\n // Sort the object's values by a criterion produced by an iteratee.\n _.sortBy = function(obj, iteratee, context) {\n var index = 0;\n iteratee = cb(iteratee, context);\n return _.pluck(_.map(obj, function(value, key, list) {\n return {\n value: value,\n index: index++,\n criteria: iteratee(value, key, list)\n };\n }).sort(function(left, right) {\n var a = left.criteria;\n var b = right.criteria;\n if (a !== b) {\n if (a > b || a === void 0) return 1;\n if (a < b || b === void 0) return -1;\n }\n return left.index - right.index;\n }), 'value');\n };\n\n // An internal function used for aggregate \"group by\" operations.\n var group = function(behavior, partition) {\n return function(obj, iteratee, context) {\n var result = partition ? [[], []] : {};\n iteratee = cb(iteratee, context);\n _.each(obj, function(value, index) {\n var key = iteratee(value, index, obj);\n behavior(result, value, key);\n });\n return result;\n };\n };\n\n // Groups the object's values by a criterion. Pass either a string attribute\n // to group by, or a function that returns the criterion.\n _.groupBy = group(function(result, value, key) {\n if (has(result, key)) result[key].push(value); else result[key] = [value];\n });\n\n // Indexes the object's values by a criterion, similar to `groupBy`, but for\n // when you know that your index values will be unique.\n _.indexBy = group(function(result, value, key) {\n result[key] = value;\n });\n\n // Counts instances of an object that group by a certain criterion. Pass\n // either a string attribute to count by, or a function that returns the\n // criterion.\n _.countBy = group(function(result, value, key) {\n if (has(result, key)) result[key]++; else result[key] = 1;\n });\n\n var reStrSymbol = /[^\\ud800-\\udfff]|[\\ud800-\\udbff][\\udc00-\\udfff]|[\\ud800-\\udfff]/g;\n // Safely create a real, live array from anything iterable.\n _.toArray = function(obj) {\n if (!obj) return [];\n if (_.isArray(obj)) return slice.call(obj);\n if (_.isString(obj)) {\n // Keep surrogate pair characters together\n return obj.match(reStrSymbol);\n }\n if (isArrayLike(obj)) return _.map(obj, _.identity);\n return _.values(obj);\n };\n\n // Return the number of elements in an object.\n _.size = function(obj) {\n if (obj == null) return 0;\n return isArrayLike(obj) ? obj.length : _.keys(obj).length;\n };\n\n // Split a collection into two arrays: one whose elements all satisfy the given\n // predicate, and one whose elements all do not satisfy the predicate.\n _.partition = group(function(result, value, pass) {\n result[pass ? 0 : 1].push(value);\n }, true);\n\n // Array Functions\n // ---------------\n\n // Get the first element of an array. Passing **n** will return the first N\n // values in the array. Aliased as `head` and `take`. The **guard** check\n // allows it to work with `_.map`.\n _.first = _.head = _.take = function(array, n, guard) {\n if (array == null || array.length < 1) return n == null ? void 0 : [];\n if (n == null || guard) return array[0];\n return _.initial(array, array.length - n);\n };\n\n // Returns everything but the last entry of the array. Especially useful on\n // the arguments object. Passing **n** will return all the values in\n // the array, excluding the last N.\n _.initial = function(array, n, guard) {\n return slice.call(array, 0, Math.max(0, array.length - (n == null || guard ? 1 : n)));\n };\n\n // Get the last element of an array. Passing **n** will return the last N\n // values in the array.\n _.last = function(array, n, guard) {\n if (array == null || array.length < 1) return n == null ? void 0 : [];\n if (n == null || guard) return array[array.length - 1];\n return _.rest(array, Math.max(0, array.length - n));\n };\n\n // Returns everything but the first entry of the array. Aliased as `tail` and `drop`.\n // Especially useful on the arguments object. Passing an **n** will return\n // the rest N values in the array.\n _.rest = _.tail = _.drop = function(array, n, guard) {\n return slice.call(array, n == null || guard ? 1 : n);\n };\n\n // Trim out all falsy values from an array.\n _.compact = function(array) {\n return _.filter(array, Boolean);\n };\n\n // Internal implementation of a recursive `flatten` function.\n var flatten = function(input, shallow, strict, output) {\n output = output || [];\n var idx = output.length;\n for (var i = 0, length = getLength(input); i < length; i++) {\n var value = input[i];\n if (isArrayLike(value) && (_.isArray(value) || _.isArguments(value))) {\n // Flatten current level of array or arguments object.\n if (shallow) {\n var j = 0, len = value.length;\n while (j < len) output[idx++] = value[j++];\n } else {\n flatten(value, shallow, strict, output);\n idx = output.length;\n }\n } else if (!strict) {\n output[idx++] = value;\n }\n }\n return output;\n };\n\n // Flatten out an array, either recursively (by default), or just one level.\n _.flatten = function(array, shallow) {\n return flatten(array, shallow, false);\n };\n\n // Return a version of the array that does not contain the specified value(s).\n _.without = restArguments(function(array, otherArrays) {\n return _.difference(array, otherArrays);\n });\n\n // Produce a duplicate-free version of the array. If the array has already\n // been sorted, you have the option of using a faster algorithm.\n // The faster algorithm will not work with an iteratee if the iteratee\n // is not a one-to-one function, so providing an iteratee will disable\n // the faster algorithm.\n // Aliased as `unique`.\n _.uniq = _.unique = function(array, isSorted, iteratee, context) {\n if (!_.isBoolean(isSorted)) {\n context = iteratee;\n iteratee = isSorted;\n isSorted = false;\n }\n if (iteratee != null) iteratee = cb(iteratee, context);\n var result = [];\n var seen = [];\n for (var i = 0, length = getLength(array); i < length; i++) {\n var value = array[i],\n computed = iteratee ? iteratee(value, i, array) : value;\n if (isSorted && !iteratee) {\n if (!i || seen !== computed) result.push(value);\n seen = computed;\n } else if (iteratee) {\n if (!_.contains(seen, computed)) {\n seen.push(computed);\n result.push(value);\n }\n } else if (!_.contains(result, value)) {\n result.push(value);\n }\n }\n return result;\n };\n\n // Produce an array that contains the union: each distinct element from all of\n // the passed-in arrays.\n _.union = restArguments(function(arrays) {\n return _.uniq(flatten(arrays, true, true));\n });\n\n // Produce an array that contains every item shared between all the\n // passed-in arrays.\n _.intersection = function(array) {\n var result = [];\n var argsLength = arguments.length;\n for (var i = 0, length = getLength(array); i < length; i++) {\n var item = array[i];\n if (_.contains(result, item)) continue;\n var j;\n for (j = 1; j < argsLength; j++) {\n if (!_.contains(arguments[j], item)) break;\n }\n if (j === argsLength) result.push(item);\n }\n return result;\n };\n\n // Take the difference between one array and a number of other arrays.\n // Only the elements present in just the first array will remain.\n _.difference = restArguments(function(array, rest) {\n rest = flatten(rest, true, true);\n return _.filter(array, function(value){\n return !_.contains(rest, value);\n });\n });\n\n // Complement of _.zip. Unzip accepts an array of arrays and groups\n // each array's elements on shared indices.\n _.unzip = function(array) {\n var length = array && _.max(array, getLength).length || 0;\n var result = Array(length);\n\n for (var index = 0; index < length; index++) {\n result[index] = _.pluck(array, index);\n }\n return result;\n };\n\n // Zip together multiple lists into a single array -- elements that share\n // an index go together.\n _.zip = restArguments(_.unzip);\n\n // Converts lists into objects. Pass either a single array of `[key, value]`\n // pairs, or two parallel arrays of the same length -- one of keys, and one of\n // the corresponding values. Passing by pairs is the reverse of _.pairs.\n _.object = function(list, values) {\n var result = {};\n for (var i = 0, length = getLength(list); i < length; i++) {\n if (values) {\n result[list[i]] = values[i];\n } else {\n result[list[i][0]] = list[i][1];\n }\n }\n return result;\n };\n\n // Generator function to create the findIndex and findLastIndex functions.\n var createPredicateIndexFinder = function(dir) {\n return function(array, predicate, context) {\n predicate = cb(predicate, context);\n var length = getLength(array);\n var index = dir > 0 ? 0 : length - 1;\n for (; index >= 0 && index < length; index += dir) {\n if (predicate(array[index], index, array)) return index;\n }\n return -1;\n };\n };\n\n // Returns the first index on an array-like that passes a predicate test.\n _.findIndex = createPredicateIndexFinder(1);\n _.findLastIndex = createPredicateIndexFinder(-1);\n\n // Use a comparator function to figure out the smallest index at which\n // an object should be inserted so as to maintain order. Uses binary search.\n _.sortedIndex = function(array, obj, iteratee, context) {\n iteratee = cb(iteratee, context, 1);\n var value = iteratee(obj);\n var low = 0, high = getLength(array);\n while (low < high) {\n var mid = Math.floor((low + high) / 2);\n if (iteratee(array[mid]) < value) low = mid + 1; else high = mid;\n }\n return low;\n };\n\n // Generator function to create the indexOf and lastIndexOf functions.\n var createIndexFinder = function(dir, predicateFind, sortedIndex) {\n return function(array, item, idx) {\n var i = 0, length = getLength(array);\n if (typeof idx == 'number') {\n if (dir > 0) {\n i = idx >= 0 ? idx : Math.max(idx + length, i);\n } else {\n length = idx >= 0 ? Math.min(idx + 1, length) : idx + length + 1;\n }\n } else if (sortedIndex && idx && length) {\n idx = sortedIndex(array, item);\n return array[idx] === item ? idx : -1;\n }\n if (item !== item) {\n idx = predicateFind(slice.call(array, i, length), _.isNaN);\n return idx >= 0 ? idx + i : -1;\n }\n for (idx = dir > 0 ? i : length - 1; idx >= 0 && idx < length; idx += dir) {\n if (array[idx] === item) return idx;\n }\n return -1;\n };\n };\n\n // Return the position of the first occurrence of an item in an array,\n // or -1 if the item is not included in the array.\n // If the array is large and already in sort order, pass `true`\n // for **isSorted** to use binary search.\n _.indexOf = createIndexFinder(1, _.findIndex, _.sortedIndex);\n _.lastIndexOf = createIndexFinder(-1, _.findLastIndex);\n\n // Generate an integer Array containing an arithmetic progression. A port of\n // the native Python `range()` function. See\n // [the Python documentation](http://docs.python.org/library/functions.html#range).\n _.range = function(start, stop, step) {\n if (stop == null) {\n stop = start || 0;\n start = 0;\n }\n if (!step) {\n step = stop < start ? -1 : 1;\n }\n\n var length = Math.max(Math.ceil((stop - start) / step), 0);\n var range = Array(length);\n\n for (var idx = 0; idx < length; idx++, start += step) {\n range[idx] = start;\n }\n\n return range;\n };\n\n // Chunk a single array into multiple arrays, each containing `count` or fewer\n // items.\n _.chunk = function(array, count) {\n if (count == null || count < 1) return [];\n var result = [];\n var i = 0, length = array.length;\n while (i < length) {\n result.push(slice.call(array, i, i += count));\n }\n return result;\n };\n\n // Function (ahem) Functions\n // ------------------\n\n // Determines whether to execute a function as a constructor\n // or a normal function with the provided arguments.\n var executeBound = function(sourceFunc, boundFunc, context, callingContext, args) {\n if (!(callingContext instanceof boundFunc)) return sourceFunc.apply(context, args);\n var self = baseCreate(sourceFunc.prototype);\n var result = sourceFunc.apply(self, args);\n if (_.isObject(result)) return result;\n return self;\n };\n\n // Create a function bound to a given object (assigning `this`, and arguments,\n // optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if\n // available.\n _.bind = restArguments(function(func, context, args) {\n if (!_.isFunction(func)) throw new TypeError('Bind must be called on a function');\n var bound = restArguments(function(callArgs) {\n return executeBound(func, bound, context, this, args.concat(callArgs));\n });\n return bound;\n });\n\n // Partially apply a function by creating a version that has had some of its\n // arguments pre-filled, without changing its dynamic `this` context. _ acts\n // as a placeholder by default, allowing any combination of arguments to be\n // pre-filled. Set `_.partial.placeholder` for a custom placeholder argument.\n _.partial = restArguments(function(func, boundArgs) {\n var placeholder = _.partial.placeholder;\n var bound = function() {\n var position = 0, length = boundArgs.length;\n var args = Array(length);\n for (var i = 0; i < length; i++) {\n args[i] = boundArgs[i] === placeholder ? arguments[position++] : boundArgs[i];\n }\n while (position < arguments.length) args.push(arguments[position++]);\n return executeBound(func, bound, this, this, args);\n };\n return bound;\n });\n\n _.partial.placeholder = _;\n\n // Bind a number of an object's methods to that object. Remaining arguments\n // are the method names to be bound. Useful for ensuring that all callbacks\n // defined on an object belong to it.\n _.bindAll = restArguments(function(obj, keys) {\n keys = flatten(keys, false, false);\n var index = keys.length;\n if (index < 1) throw new Error('bindAll must be passed function names');\n while (index--) {\n var key = keys[index];\n obj[key] = _.bind(obj[key], obj);\n }\n });\n\n // Memoize an expensive function by storing its results.\n _.memoize = function(func, hasher) {\n var memoize = function(key) {\n var cache = memoize.cache;\n var address = '' + (hasher ? hasher.apply(this, arguments) : key);\n if (!has(cache, address)) cache[address] = func.apply(this, arguments);\n return cache[address];\n };\n memoize.cache = {};\n return memoize;\n };\n\n // Delays a function for the given number of milliseconds, and then calls\n // it with the arguments supplied.\n _.delay = restArguments(function(func, wait, args) {\n return setTimeout(function() {\n return func.apply(null, args);\n }, wait);\n });\n\n // Defers a function, scheduling it to run after the current call stack has\n // cleared.\n _.defer = _.partial(_.delay, _, 1);\n\n // Returns a function, that, when invoked, will only be triggered at most once\n // during a given window of time. Normally, the throttled function will run\n // as much as it can, without ever going more than once per `wait` duration;\n // but if you'd like to disable the execution on the leading edge, pass\n // `{leading: false}`. To disable execution on the trailing edge, ditto.\n _.throttle = function(func, wait, options) {\n var timeout, context, args, result;\n var previous = 0;\n if (!options) options = {};\n\n var later = function() {\n previous = options.leading === false ? 0 : _.now();\n timeout = null;\n result = func.apply(context, args);\n if (!timeout) context = args = null;\n };\n\n var throttled = function() {\n var now = _.now();\n if (!previous && options.leading === false) previous = now;\n var remaining = wait - (now - previous);\n context = this;\n args = arguments;\n if (remaining <= 0 || remaining > wait) {\n if (timeout) {\n clearTimeout(timeout);\n timeout = null;\n }\n previous = now;\n result = func.apply(context, args);\n if (!timeout) context = args = null;\n } else if (!timeout && options.trailing !== false) {\n timeout = setTimeout(later, remaining);\n }\n return result;\n };\n\n throttled.cancel = function() {\n clearTimeout(timeout);\n previous = 0;\n timeout = context = args = null;\n };\n\n return throttled;\n };\n\n // Returns a function, that, as long as it continues to be invoked, will not\n // be triggered. The function will be called after it stops being called for\n // N milliseconds. If `immediate` is passed, trigger the function on the\n // leading edge, instead of the trailing.\n _.debounce = function(func, wait, immediate) {\n var timeout, result;\n\n var later = function(context, args) {\n timeout = null;\n if (args) result = func.apply(context, args);\n };\n\n var debounced = restArguments(function(args) {\n if (timeout) clearTimeout(timeout);\n if (immediate) {\n var callNow = !timeout;\n timeout = setTimeout(later, wait);\n if (callNow) result = func.apply(this, args);\n } else {\n timeout = _.delay(later, wait, this, args);\n }\n\n return result;\n });\n\n debounced.cancel = function() {\n clearTimeout(timeout);\n timeout = null;\n };\n\n return debounced;\n };\n\n // Returns the first function passed as an argument to the second,\n // allowing you to adjust arguments, run code before and after, and\n // conditionally execute the original function.\n _.wrap = function(func, wrapper) {\n return _.partial(wrapper, func);\n };\n\n // Returns a negated version of the passed-in predicate.\n _.negate = function(predicate) {\n return function() {\n return !predicate.apply(this, arguments);\n };\n };\n\n // Returns a function that is the composition of a list of functions, each\n // consuming the return value of the function that follows.\n _.compose = function() {\n var args = arguments;\n var start = args.length - 1;\n return function() {\n var i = start;\n var result = args[start].apply(this, arguments);\n while (i--) result = args[i].call(this, result);\n return result;\n };\n };\n\n // Returns a function that will only be executed on and after the Nth call.\n _.after = function(times, func) {\n return function() {\n if (--times < 1) {\n return func.apply(this, arguments);\n }\n };\n };\n\n // Returns a function that will only be executed up to (but not including) the Nth call.\n _.before = function(times, func) {\n var memo;\n return function() {\n if (--times > 0) {\n memo = func.apply(this, arguments);\n }\n if (times <= 1) func = null;\n return memo;\n };\n };\n\n // Returns a function that will be executed at most one time, no matter how\n // often you call it. Useful for lazy initialization.\n _.once = _.partial(_.before, 2);\n\n _.restArguments = restArguments;\n\n // Object Functions\n // ----------------\n\n // Keys in IE < 9 that won't be iterated by `for key in ...` and thus missed.\n var hasEnumBug = !{toString: null}.propertyIsEnumerable('toString');\n var nonEnumerableProps = ['valueOf', 'isPrototypeOf', 'toString',\n 'propertyIsEnumerable', 'hasOwnProperty', 'toLocaleString'];\n\n var collectNonEnumProps = function(obj, keys) {\n var nonEnumIdx = nonEnumerableProps.length;\n var constructor = obj.constructor;\n var proto = _.isFunction(constructor) && constructor.prototype || ObjProto;\n\n // Constructor is a special case.\n var prop = 'constructor';\n if (has(obj, prop) && !_.contains(keys, prop)) keys.push(prop);\n\n while (nonEnumIdx--) {\n prop = nonEnumerableProps[nonEnumIdx];\n if (prop in obj && obj[prop] !== proto[prop] && !_.contains(keys, prop)) {\n keys.push(prop);\n }\n }\n };\n\n // Retrieve the names of an object's own properties.\n // Delegates to **ECMAScript 5**'s native `Object.keys`.\n _.keys = function(obj) {\n if (!_.isObject(obj)) return [];\n if (nativeKeys) return nativeKeys(obj);\n var keys = [];\n for (var key in obj) if (has(obj, key)) keys.push(key);\n // Ahem, IE < 9.\n if (hasEnumBug) collectNonEnumProps(obj, keys);\n return keys;\n };\n\n // Retrieve all the property names of an object.\n _.allKeys = function(obj) {\n if (!_.isObject(obj)) return [];\n var keys = [];\n for (var key in obj) keys.push(key);\n // Ahem, IE < 9.\n if (hasEnumBug) collectNonEnumProps(obj, keys);\n return keys;\n };\n\n // Retrieve the values of an object's properties.\n _.values = function(obj) {\n var keys = _.keys(obj);\n var length = keys.length;\n var values = Array(length);\n for (var i = 0; i < length; i++) {\n values[i] = obj[keys[i]];\n }\n return values;\n };\n\n // Returns the results of applying the iteratee to each element of the object.\n // In contrast to _.map it returns an object.\n _.mapObject = function(obj, iteratee, context) {\n iteratee = cb(iteratee, context);\n var keys = _.keys(obj),\n length = keys.length,\n results = {};\n for (var index = 0; index < length; index++) {\n var currentKey = keys[index];\n results[currentKey] = iteratee(obj[currentKey], currentKey, obj);\n }\n return results;\n };\n\n // Convert an object into a list of `[key, value]` pairs.\n // The opposite of _.object.\n _.pairs = function(obj) {\n var keys = _.keys(obj);\n var length = keys.length;\n var pairs = Array(length);\n for (var i = 0; i < length; i++) {\n pairs[i] = [keys[i], obj[keys[i]]];\n }\n return pairs;\n };\n\n // Invert the keys and values of an object. The values must be serializable.\n _.invert = function(obj) {\n var result = {};\n var keys = _.keys(obj);\n for (var i = 0, length = keys.length; i < length; i++) {\n result[obj[keys[i]]] = keys[i];\n }\n return result;\n };\n\n // Return a sorted list of the function names available on the object.\n // Aliased as `methods`.\n _.functions = _.methods = function(obj) {\n var names = [];\n for (var key in obj) {\n if (_.isFunction(obj[key])) names.push(key);\n }\n return names.sort();\n };\n\n // An internal function for creating assigner functions.\n var createAssigner = function(keysFunc, defaults) {\n return function(obj) {\n var length = arguments.length;\n if (defaults) obj = Object(obj);\n if (length < 2 || obj == null) return obj;\n for (var index = 1; index < length; index++) {\n var source = arguments[index],\n keys = keysFunc(source),\n l = keys.length;\n for (var i = 0; i < l; i++) {\n var key = keys[i];\n if (!defaults || obj[key] === void 0) obj[key] = source[key];\n }\n }\n return obj;\n };\n };\n\n // Extend a given object with all the properties in passed-in object(s).\n _.extend = createAssigner(_.allKeys);\n\n // Assigns a given object with all the own properties in the passed-in object(s).\n // (https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)\n _.extendOwn = _.assign = createAssigner(_.keys);\n\n // Returns the first key on an object that passes a predicate test.\n _.findKey = function(obj, predicate, context) {\n predicate = cb(predicate, context);\n var keys = _.keys(obj), key;\n for (var i = 0, length = keys.length; i < length; i++) {\n key = keys[i];\n if (predicate(obj[key], key, obj)) return key;\n }\n };\n\n // Internal pick helper function to determine if `obj` has key `key`.\n var keyInObj = function(value, key, obj) {\n return key in obj;\n };\n\n // Return a copy of the object only containing the whitelisted properties.\n _.pick = restArguments(function(obj, keys) {\n var result = {}, iteratee = keys[0];\n if (obj == null) return result;\n if (_.isFunction(iteratee)) {\n if (keys.length > 1) iteratee = optimizeCb(iteratee, keys[1]);\n keys = _.allKeys(obj);\n } else {\n iteratee = keyInObj;\n keys = flatten(keys, false, false);\n obj = Object(obj);\n }\n for (var i = 0, length = keys.length; i < length; i++) {\n var key = keys[i];\n var value = obj[key];\n if (iteratee(value, key, obj)) result[key] = value;\n }\n return result;\n });\n\n // Return a copy of the object without the blacklisted properties.\n _.omit = restArguments(function(obj, keys) {\n var iteratee = keys[0], context;\n if (_.isFunction(iteratee)) {\n iteratee = _.negate(iteratee);\n if (keys.length > 1) context = keys[1];\n } else {\n keys = _.map(flatten(keys, false, false), String);\n iteratee = function(value, key) {\n return !_.contains(keys, key);\n };\n }\n return _.pick(obj, iteratee, context);\n });\n\n // Fill in a given object with default properties.\n _.defaults = createAssigner(_.allKeys, true);\n\n // Creates an object that inherits from the given prototype object.\n // If additional properties are provided then they will be added to the\n // created object.\n _.create = function(prototype, props) {\n var result = baseCreate(prototype);\n if (props) _.extendOwn(result, props);\n return result;\n };\n\n // Create a (shallow-cloned) duplicate of an object.\n _.clone = function(obj) {\n if (!_.isObject(obj)) return obj;\n return _.isArray(obj) ? obj.slice() : _.extend({}, obj);\n };\n\n // Invokes interceptor with the obj, and then returns obj.\n // The primary purpose of this method is to \"tap into\" a method chain, in\n // order to perform operations on intermediate results within the chain.\n _.tap = function(obj, interceptor) {\n interceptor(obj);\n return obj;\n };\n\n // Returns whether an object has a given set of `key:value` pairs.\n _.isMatch = function(object, attrs) {\n var keys = _.keys(attrs), length = keys.length;\n if (object == null) return !length;\n var obj = Object(object);\n for (var i = 0; i < length; i++) {\n var key = keys[i];\n if (attrs[key] !== obj[key] || !(key in obj)) return false;\n }\n return true;\n };\n\n\n // Internal recursive comparison function for `isEqual`.\n var eq, deepEq;\n eq = function(a, b, aStack, bStack) {\n // Identical objects are equal. `0 === -0`, but they aren't identical.\n // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).\n if (a === b) return a !== 0 || 1 / a === 1 / b;\n // `null` or `undefined` only equal to itself (strict comparison).\n if (a == null || b == null) return false;\n // `NaN`s are equivalent, but non-reflexive.\n if (a !== a) return b !== b;\n // Exhaust primitive checks\n var type = typeof a;\n if (type !== 'function' && type !== 'object' && typeof b != 'object') return false;\n return deepEq(a, b, aStack, bStack);\n };\n\n // Internal recursive comparison function for `isEqual`.\n deepEq = function(a, b, aStack, bStack) {\n // Unwrap any wrapped objects.\n if (a instanceof _) a = a._wrapped;\n if (b instanceof _) b = b._wrapped;\n // Compare `[[Class]]` names.\n var className = toString.call(a);\n if (className !== toString.call(b)) return false;\n switch (className) {\n // Strings, numbers, regular expressions, dates, and booleans are compared by value.\n case '[object RegExp]':\n // RegExps are coerced to strings for comparison (Note: '' + /a/i === '/a/i')\n case '[object String]':\n // Primitives and their corresponding object wrappers are equivalent; thus, `\"5\"` is\n // equivalent to `new String(\"5\")`.\n return '' + a === '' + b;\n case '[object Number]':\n // `NaN`s are equivalent, but non-reflexive.\n // Object(NaN) is equivalent to NaN.\n if (+a !== +a) return +b !== +b;\n // An `egal` comparison is performed for other numeric values.\n return +a === 0 ? 1 / +a === 1 / b : +a === +b;\n case '[object Date]':\n case '[object Boolean]':\n // Coerce dates and booleans to numeric primitive values. Dates are compared by their\n // millisecond representations. Note that invalid dates with millisecond representations\n // of `NaN` are not equivalent.\n return +a === +b;\n case '[object Symbol]':\n return SymbolProto.valueOf.call(a) === SymbolProto.valueOf.call(b);\n }\n\n var areArrays = className === '[object Array]';\n if (!areArrays) {\n if (typeof a != 'object' || typeof b != 'object') return false;\n\n // Objects with different constructors are not equivalent, but `Object`s or `Array`s\n // from different frames are.\n var aCtor = a.constructor, bCtor = b.constructor;\n if (aCtor !== bCtor && !(_.isFunction(aCtor) && aCtor instanceof aCtor &&\n _.isFunction(bCtor) && bCtor instanceof bCtor)\n && ('constructor' in a && 'constructor' in b)) {\n return false;\n }\n }\n // Assume equality for cyclic structures. The algorithm for detecting cyclic\n // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.\n\n // Initializing stack of traversed objects.\n // It's done here since we only need them for objects and arrays comparison.\n aStack = aStack || [];\n bStack = bStack || [];\n var length = aStack.length;\n while (length--) {\n // Linear search. Performance is inversely proportional to the number of\n // unique nested structures.\n if (aStack[length] === a) return bStack[length] === b;\n }\n\n // Add the first object to the stack of traversed objects.\n aStack.push(a);\n bStack.push(b);\n\n // Recursively compare objects and arrays.\n if (areArrays) {\n // Compare array lengths to determine if a deep comparison is necessary.\n length = a.length;\n if (length !== b.length) return false;\n // Deep compare the contents, ignoring non-numeric properties.\n while (length--) {\n if (!eq(a[length], b[length], aStack, bStack)) return false;\n }\n } else {\n // Deep compare objects.\n var keys = _.keys(a), key;\n length = keys.length;\n // Ensure that both objects contain the same number of properties before comparing deep equality.\n if (_.keys(b).length !== length) return false;\n while (length--) {\n // Deep compare each member\n key = keys[length];\n if (!(has(b, key) && eq(a[key], b[key], aStack, bStack))) return false;\n }\n }\n // Remove the first object from the stack of traversed objects.\n aStack.pop();\n bStack.pop();\n return true;\n };\n\n // Perform a deep comparison to check if two objects are equal.\n _.isEqual = function(a, b) {\n return eq(a, b);\n };\n\n // Is a given array, string, or object empty?\n // An \"empty\" object has no enumerable own-properties.\n _.isEmpty = function(obj) {\n if (obj == null) return true;\n if (isArrayLike(obj) && (_.isArray(obj) || _.isString(obj) || _.isArguments(obj))) return obj.length === 0;\n return _.keys(obj).length === 0;\n };\n\n // Is a given value a DOM element?\n _.isElement = function(obj) {\n return !!(obj && obj.nodeType === 1);\n };\n\n // Is a given value an array?\n // Delegates to ECMA5's native Array.isArray\n _.isArray = nativeIsArray || function(obj) {\n return toString.call(obj) === '[object Array]';\n };\n\n // Is a given variable an object?\n _.isObject = function(obj) {\n var type = typeof obj;\n return type === 'function' || type === 'object' && !!obj;\n };\n\n // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp, isError, isMap, isWeakMap, isSet, isWeakSet.\n _.each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp', 'Error', 'Symbol', 'Map', 'WeakMap', 'Set', 'WeakSet'], function(name) {\n _['is' + name] = function(obj) {\n return toString.call(obj) === '[object ' + name + ']';\n };\n });\n\n // Define a fallback version of the method in browsers (ahem, IE < 9), where\n // there isn't any inspectable \"Arguments\" type.\n if (!_.isArguments(arguments)) {\n _.isArguments = function(obj) {\n return has(obj, 'callee');\n };\n }\n\n // Optimize `isFunction` if appropriate. Work around some typeof bugs in old v8,\n // IE 11 (#1621), Safari 8 (#1929), and PhantomJS (#2236).\n var nodelist = root.document && root.document.childNodes;\n if (typeof /./ != 'function' && typeof Int8Array != 'object' && typeof nodelist != 'function') {\n _.isFunction = function(obj) {\n return typeof obj == 'function' || false;\n };\n }\n\n // Is a given object a finite number?\n _.isFinite = function(obj) {\n return !_.isSymbol(obj) && isFinite(obj) && !isNaN(parseFloat(obj));\n };\n\n // Is the given value `NaN`?\n _.isNaN = function(obj) {\n return _.isNumber(obj) && isNaN(obj);\n };\n\n // Is a given value a boolean?\n _.isBoolean = function(obj) {\n return obj === true || obj === false || toString.call(obj) === '[object Boolean]';\n };\n\n // Is a given value equal to null?\n _.isNull = function(obj) {\n return obj === null;\n };\n\n // Is a given variable undefined?\n _.isUndefined = function(obj) {\n return obj === void 0;\n };\n\n // Shortcut function for checking if an object has a given property directly\n // on itself (in other words, not on a prototype).\n _.has = function(obj, path) {\n if (!_.isArray(path)) {\n return has(obj, path);\n }\n var length = path.length;\n for (var i = 0; i < length; i++) {\n var key = path[i];\n if (obj == null || !hasOwnProperty.call(obj, key)) {\n return false;\n }\n obj = obj[key];\n }\n return !!length;\n };\n\n // Utility Functions\n // -----------------\n\n // Run Underscore.js in *noConflict* mode, returning the `_` variable to its\n // previous owner. Returns a reference to the Underscore object.\n _.noConflict = function() {\n root._ = previousUnderscore;\n return this;\n };\n\n // Keep the identity function around for default iteratees.\n _.identity = function(value) {\n return value;\n };\n\n // Predicate-generating functions. Often useful outside of Underscore.\n _.constant = function(value) {\n return function() {\n return value;\n };\n };\n\n _.noop = function(){};\n\n // Creates a function that, when passed an object, will traverse that object’s\n // properties down the given `path`, specified as an array of keys or indexes.\n _.property = function(path) {\n if (!_.isArray(path)) {\n return shallowProperty(path);\n }\n return function(obj) {\n return deepGet(obj, path);\n };\n };\n\n // Generates a function for a given object that returns a given property.\n _.propertyOf = function(obj) {\n if (obj == null) {\n return function(){};\n }\n return function(path) {\n return !_.isArray(path) ? obj[path] : deepGet(obj, path);\n };\n };\n\n // Returns a predicate for checking whether an object has a given set of\n // `key:value` pairs.\n _.matcher = _.matches = function(attrs) {\n attrs = _.extendOwn({}, attrs);\n return function(obj) {\n return _.isMatch(obj, attrs);\n };\n };\n\n // Run a function **n** times.\n _.times = function(n, iteratee, context) {\n var accum = Array(Math.max(0, n));\n iteratee = optimizeCb(iteratee, context, 1);\n for (var i = 0; i < n; i++) accum[i] = iteratee(i);\n return accum;\n };\n\n // Return a random integer between min and max (inclusive).\n _.random = function(min, max) {\n if (max == null) {\n max = min;\n min = 0;\n }\n return min + Math.floor(Math.random() * (max - min + 1));\n };\n\n // A (possibly faster) way to get the current timestamp as an integer.\n _.now = Date.now || function() {\n return new Date().getTime();\n };\n\n // List of HTML entities for escaping.\n var escapeMap = {\n '&': '&',\n '<': '<',\n '>': '>',\n '\"': '"',\n \"'\": ''',\n '`': '`'\n };\n var unescapeMap = _.invert(escapeMap);\n\n // Functions for escaping and unescaping strings to/from HTML interpolation.\n var createEscaper = function(map) {\n var escaper = function(match) {\n return map[match];\n };\n // Regexes for identifying a key that needs to be escaped.\n var source = '(?:' + _.keys(map).join('|') + ')';\n var testRegexp = RegExp(source);\n var replaceRegexp = RegExp(source, 'g');\n return function(string) {\n string = string == null ? '' : '' + string;\n return testRegexp.test(string) ? string.replace(replaceRegexp, escaper) : string;\n };\n };\n _.escape = createEscaper(escapeMap);\n _.unescape = createEscaper(unescapeMap);\n\n // Traverses the children of `obj` along `path`. If a child is a function, it\n // is invoked with its parent as context. Returns the value of the final\n // child, or `fallback` if any child is undefined.\n _.result = function(obj, path, fallback) {\n if (!_.isArray(path)) path = [path];\n var length = path.length;\n if (!length) {\n return _.isFunction(fallback) ? fallback.call(obj) : fallback;\n }\n for (var i = 0; i < length; i++) {\n var prop = obj == null ? void 0 : obj[path[i]];\n if (prop === void 0) {\n prop = fallback;\n i = length; // Ensure we don't continue iterating.\n }\n obj = _.isFunction(prop) ? prop.call(obj) : prop;\n }\n return obj;\n };\n\n // Generate a unique integer id (unique within the entire client session).\n // Useful for temporary DOM ids.\n var idCounter = 0;\n _.uniqueId = function(prefix) {\n var id = ++idCounter + '';\n return prefix ? prefix + id : id;\n };\n\n // By default, Underscore uses ERB-style template delimiters, change the\n // following template settings to use alternative delimiters.\n _.templateSettings = {\n evaluate: /<%([\\s\\S]+?)%>/g,\n interpolate: /<%=([\\s\\S]+?)%>/g,\n escape: /<%-([\\s\\S]+?)%>/g\n };\n\n // When customizing `templateSettings`, if you don't want to define an\n // interpolation, evaluation or escaping regex, we need one that is\n // guaranteed not to match.\n var noMatch = /(.)^/;\n\n // Certain characters need to be escaped so that they can be put into a\n // string literal.\n var escapes = {\n \"'\": \"'\",\n '\\\\': '\\\\',\n '\\r': 'r',\n '\\n': 'n',\n '\\u2028': 'u2028',\n '\\u2029': 'u2029'\n };\n\n var escapeRegExp = /\\\\|'|\\r|\\n|\\u2028|\\u2029/g;\n\n var escapeChar = function(match) {\n return '\\\\' + escapes[match];\n };\n\n // JavaScript micro-templating, similar to John Resig's implementation.\n // Underscore templating handles arbitrary delimiters, preserves whitespace,\n // and correctly escapes quotes within interpolated code.\n // NB: `oldSettings` only exists for backwards compatibility.\n _.template = function(text, settings, oldSettings) {\n if (!settings && oldSettings) settings = oldSettings;\n settings = _.defaults({}, settings, _.templateSettings);\n\n // Combine delimiters into one regular expression via alternation.\n var matcher = RegExp([\n (settings.escape || noMatch).source,\n (settings.interpolate || noMatch).source,\n (settings.evaluate || noMatch).source\n ].join('|') + '|$', 'g');\n\n // Compile the template source, escaping string literals appropriately.\n var index = 0;\n var source = \"__p+='\";\n text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {\n source += text.slice(index, offset).replace(escapeRegExp, escapeChar);\n index = offset + match.length;\n\n if (escape) {\n source += \"'+\\n((__t=(\" + escape + \"))==null?'':_.escape(__t))+\\n'\";\n } else if (interpolate) {\n source += \"'+\\n((__t=(\" + interpolate + \"))==null?'':__t)+\\n'\";\n } else if (evaluate) {\n source += \"';\\n\" + evaluate + \"\\n__p+='\";\n }\n\n // Adobe VMs need the match returned to produce the correct offset.\n return match;\n });\n source += \"';\\n\";\n\n // If a variable is not specified, place data values in local scope.\n if (!settings.variable) source = 'with(obj||{}){\\n' + source + '}\\n';\n\n source = \"var __t,__p='',__j=Array.prototype.join,\" +\n \"print=function(){__p+=__j.call(arguments,'');};\\n\" +\n source + 'return __p;\\n';\n\n var render;\n try {\n render = new Function(settings.variable || 'obj', '_', source);\n } catch (e) {\n e.source = source;\n throw e;\n }\n\n var template = function(data) {\n return render.call(this, data, _);\n };\n\n // Provide the compiled source as a convenience for precompilation.\n var argument = settings.variable || 'obj';\n template.source = 'function(' + argument + '){\\n' + source + '}';\n\n return template;\n };\n\n // Add a \"chain\" function. Start chaining a wrapped Underscore object.\n _.chain = function(obj) {\n var instance = _(obj);\n instance._chain = true;\n return instance;\n };\n\n // OOP\n // ---------------\n // If Underscore is called as a function, it returns a wrapped object that\n // can be used OO-style. This wrapper holds altered versions of all the\n // underscore functions. Wrapped objects may be chained.\n\n // Helper function to continue chaining intermediate results.\n var chainResult = function(instance, obj) {\n return instance._chain ? _(obj).chain() : obj;\n };\n\n // Add your own custom functions to the Underscore object.\n _.mixin = function(obj) {\n _.each(_.functions(obj), function(name) {\n var func = _[name] = obj[name];\n _.prototype[name] = function() {\n var args = [this._wrapped];\n push.apply(args, arguments);\n return chainResult(this, func.apply(_, args));\n };\n });\n return _;\n };\n\n // Add all of the Underscore functions to the wrapper object.\n _.mixin(_);\n\n // Add all mutator Array functions to the wrapper.\n _.each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {\n var method = ArrayProto[name];\n _.prototype[name] = function() {\n var obj = this._wrapped;\n method.apply(obj, arguments);\n if ((name === 'shift' || name === 'splice') && obj.length === 0) delete obj[0];\n return chainResult(this, obj);\n };\n });\n\n // Add all accessor Array functions to the wrapper.\n _.each(['concat', 'join', 'slice'], function(name) {\n var method = ArrayProto[name];\n _.prototype[name] = function() {\n return chainResult(this, method.apply(this._wrapped, arguments));\n };\n });\n\n // Extracts the result from a wrapped and chained object.\n _.prototype.value = function() {\n return this._wrapped;\n };\n\n // Provide unwrapping proxy for some methods used in engine operations\n // such as arithmetic and JSON stringification.\n _.prototype.valueOf = _.prototype.toJSON = _.prototype.value;\n\n _.prototype.toString = function() {\n return String(this._wrapped);\n };\n\n // AMD registration happens at the end for compatibility with AMD loaders\n // that may not enforce next-turn semantics on modules. Even though general\n // practice for AMD registration is to be anonymous, underscore registers\n // as a named module because, like jQuery, it is a base library that is\n // popular enough to be bundled in a third party lib, but not be part of\n // an AMD load request. Those cases could generate an error when an\n // anonymous define() is called outside of a loader request.\n if (typeof define == 'function' && define.amd) {\n define('underscore', [], function() {\n return _;\n });\n }\n}());\n","/**\n * @license\n * Video.js 6.12.1 <http://videojs.com/>\n * Copyright Brightcove, Inc. <https://www.brightcove.com/>\n * Available under Apache License Version 2.0\n * <https://github.com/videojs/video.js/blob/master/LICENSE>\n *\n * Includes vtt.js <https://github.com/mozilla/vtt.js>\n * Available under Apache License Version 2.0\n * <https://github.com/mozilla/vtt.js/blob/master/LICENSE>\n */\n\nfunction _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }\n\nvar window = _interopDefault(require('global/window'));\nvar document = _interopDefault(require('global/document'));\nvar tsml = _interopDefault(require('tsml'));\nvar safeParseTuple = _interopDefault(require('safe-json-parse/tuple'));\nvar xhr = _interopDefault(require('xhr'));\nvar vtt = _interopDefault(require('videojs-vtt.js'));\n\nvar version = \"6.12.1\";\n\n/**\n * @file browser.js\n * @module browser\n */\nvar USER_AGENT = window.navigator && window.navigator.userAgent || '';\nvar webkitVersionMap = /AppleWebKit\\/([\\d.]+)/i.exec(USER_AGENT);\nvar appleWebkitVersion = webkitVersionMap ? parseFloat(webkitVersionMap.pop()) : null;\n\n/*\n * Device is an iPhone\n *\n * @type {Boolean}\n * @constant\n * @private\n */\nvar IS_IPAD = /iPad/i.test(USER_AGENT);\n\n// The Facebook app's UIWebView identifies as both an iPhone and iPad, so\n// to identify iPhones, we need to exclude iPads.\n// http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/\nvar IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;\nvar IS_IPOD = /iPod/i.test(USER_AGENT);\nvar IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;\n\nvar IOS_VERSION = function () {\n var match = USER_AGENT.match(/OS (\\d+)_/i);\n\n if (match && match[1]) {\n return match[1];\n }\n return null;\n}();\n\nvar IS_ANDROID = /Android/i.test(USER_AGENT);\nvar ANDROID_VERSION = function () {\n // This matches Android Major.Minor.Patch versions\n // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned\n var match = USER_AGENT.match(/Android (\\d+)(?:\\.(\\d+))?(?:\\.(\\d+))*/i);\n\n if (!match) {\n return null;\n }\n\n var major = match[1] && parseFloat(match[1]);\n var minor = match[2] && parseFloat(match[2]);\n\n if (major && minor) {\n return parseFloat(match[1] + '.' + match[2]);\n } else if (major) {\n return major;\n }\n return null;\n}();\n\n// Old Android is defined as Version older than 2.3, and requiring a webkit version of the android browser\nvar IS_OLD_ANDROID = IS_ANDROID && /webkit/i.test(USER_AGENT) && ANDROID_VERSION < 2.3;\nvar IS_NATIVE_ANDROID = IS_ANDROID && ANDROID_VERSION < 5 && appleWebkitVersion < 537;\n\nvar IS_FIREFOX = /Firefox/i.test(USER_AGENT);\nvar IS_EDGE = /Edge/i.test(USER_AGENT);\nvar IS_CHROME = !IS_EDGE && (/Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT));\nvar CHROME_VERSION = function () {\n var match = USER_AGENT.match(/(Chrome|CriOS)\\/(\\d+)/);\n\n if (match && match[2]) {\n return parseFloat(match[2]);\n }\n return null;\n}();\nvar IS_IE8 = /MSIE\\s8\\.0/.test(USER_AGENT);\nvar IE_VERSION = function () {\n var result = /MSIE\\s(\\d+)\\.\\d/.exec(USER_AGENT);\n var version = result && parseFloat(result[1]);\n\n if (!version && /Trident\\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {\n // IE 11 has a different user agent string than other IE versions\n version = 11.0;\n }\n\n return version;\n}();\n\nvar IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;\nvar IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;\n\nvar TOUCH_ENABLED = isReal() && ('ontouchstart' in window || window.navigator.maxTouchPoints || window.DocumentTouch && window.document instanceof window.DocumentTouch);\n\nvar BACKGROUND_SIZE_SUPPORTED = isReal() && 'backgroundSize' in window.document.createElement('video').style;\n\nvar browser = (Object.freeze || Object)({\n\tIS_IPAD: IS_IPAD,\n\tIS_IPHONE: IS_IPHONE,\n\tIS_IPOD: IS_IPOD,\n\tIS_IOS: IS_IOS,\n\tIOS_VERSION: IOS_VERSION,\n\tIS_ANDROID: IS_ANDROID,\n\tANDROID_VERSION: ANDROID_VERSION,\n\tIS_OLD_ANDROID: IS_OLD_ANDROID,\n\tIS_NATIVE_ANDROID: IS_NATIVE_ANDROID,\n\tIS_FIREFOX: IS_FIREFOX,\n\tIS_EDGE: IS_EDGE,\n\tIS_CHROME: IS_CHROME,\n\tCHROME_VERSION: CHROME_VERSION,\n\tIS_IE8: IS_IE8,\n\tIE_VERSION: IE_VERSION,\n\tIS_SAFARI: IS_SAFARI,\n\tIS_ANY_SAFARI: IS_ANY_SAFARI,\n\tTOUCH_ENABLED: TOUCH_ENABLED,\n\tBACKGROUND_SIZE_SUPPORTED: BACKGROUND_SIZE_SUPPORTED\n});\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) {\n return typeof obj;\n} : function (obj) {\n return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj;\n};\n\n\n\n\n\n\n\n\n\n\n\nvar classCallCheck = function (instance, Constructor) {\n if (!(instance instanceof Constructor)) {\n throw new TypeError(\"Cannot call a class as a function\");\n }\n};\n\n\n\n\n\n\n\n\n\n\n\nvar inherits = function (subClass, superClass) {\n if (typeof superClass !== \"function\" && superClass !== null) {\n throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass);\n }\n\n subClass.prototype = Object.create(superClass && superClass.prototype, {\n constructor: {\n value: subClass,\n enumerable: false,\n writable: true,\n configurable: true\n }\n });\n if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;\n};\n\n\n\n\n\n\n\n\n\n\n\nvar possibleConstructorReturn = function (self, call) {\n if (!self) {\n throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n }\n\n return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self;\n};\n\n\n\n\n\n\n\n\n\n\n\nvar taggedTemplateLiteralLoose = function (strings, raw) {\n strings.raw = raw;\n return strings;\n};\n\n/**\n * @file obj.js\n * @module obj\n */\n\n/**\n * @callback obj:EachCallback\n *\n * @param {Mixed} value\n * The current key for the object that is being iterated over.\n *\n * @param {string} key\n * The current key-value for object that is being iterated over\n */\n\n/**\n * @callback obj:ReduceCallback\n *\n * @param {Mixed} accum\n * The value that is accumulating over the reduce loop.\n *\n * @param {Mixed} value\n * The current key for the object that is being iterated over.\n *\n * @param {string} key\n * The current key-value for object that is being iterated over\n *\n * @return {Mixed}\n * The new accumulated value.\n */\nvar toString = Object.prototype.toString;\n\n/**\n * Get the keys of an Object\n *\n * @param {Object}\n * The Object to get the keys from\n *\n * @return {string[]}\n * An array of the keys from the object. Returns an empty array if the\n * object passed in was invalid or had no keys.\n *\n * @private\n */\nvar keys = function keys(object) {\n return isObject(object) ? Object.keys(object) : [];\n};\n\n/**\n * Array-like iteration for objects.\n *\n * @param {Object} object\n * The object to iterate over\n *\n * @param {obj:EachCallback} fn\n * The callback function which is called for each key in the object.\n */\nfunction each(object, fn) {\n keys(object).forEach(function (key) {\n return fn(object[key], key);\n });\n}\n\n/**\n * Array-like reduce for objects.\n *\n * @param {Object} object\n * The Object that you want to reduce.\n *\n * @param {Function} fn\n * A callback function which is called for each key in the object. It\n * receives the accumulated value and the per-iteration value and key\n * as arguments.\n *\n * @param {Mixed} [initial = 0]\n * Starting value\n *\n * @return {Mixed}\n * The final accumulated value.\n */\nfunction reduce(object, fn) {\n var initial = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;\n\n return keys(object).reduce(function (accum, key) {\n return fn(accum, object[key], key);\n }, initial);\n}\n\n/**\n * Object.assign-style object shallow merge/extend.\n *\n * @param {Object} target\n * @param {Object} ...sources\n * @return {Object}\n */\nfunction assign(target) {\n for (var _len = arguments.length, sources = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n sources[_key - 1] = arguments[_key];\n }\n\n if (Object.assign) {\n return Object.assign.apply(Object, [target].concat(sources));\n }\n\n sources.forEach(function (source) {\n if (!source) {\n return;\n }\n\n each(source, function (value, key) {\n target[key] = value;\n });\n });\n\n return target;\n}\n\n/**\n * Returns whether a value is an object of any kind - including DOM nodes,\n * arrays, regular expressions, etc. Not functions, though.\n *\n * This avoids the gotcha where using `typeof` on a `null` value\n * results in `'object'`.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nfunction isObject(value) {\n return !!value && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) === 'object';\n}\n\n/**\n * Returns whether an object appears to be a \"plain\" object - that is, a\n * direct instance of `Object`.\n *\n * @param {Object} value\n * @return {Boolean}\n */\nfunction isPlain(value) {\n return isObject(value) && toString.call(value) === '[object Object]' && value.constructor === Object;\n}\n\n/**\n * @file log.js\n * @module log\n */\nvar log = void 0;\n\n// This is the private tracking variable for logging level.\nvar level = 'info';\n\n// This is the private tracking variable for the logging history.\nvar history = [];\n\n/**\n * Log messages to the console and history based on the type of message\n *\n * @private\n * @param {string} type\n * The name of the console method to use.\n *\n * @param {Array} args\n * The arguments to be passed to the matching console method.\n *\n * @param {boolean} [stringify]\n * By default, only old IEs should get console argument stringification,\n * but this is exposed as a parameter to facilitate testing.\n */\nvar logByType = function logByType(type, args) {\n var stringify = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : !!IE_VERSION && IE_VERSION < 11;\n\n var lvl = log.levels[level];\n var lvlRegExp = new RegExp('^(' + lvl + ')$');\n\n if (type !== 'log') {\n\n // Add the type to the front of the message when it's not \"log\".\n args.unshift(type.toUpperCase() + ':');\n }\n\n // Add a clone of the args at this point to history.\n if (history) {\n history.push([].concat(args));\n }\n\n // Add console prefix after adding to history.\n args.unshift('VIDEOJS:');\n\n // If there's no console then don't try to output messages, but they will\n // still be stored in history.\n if (!window.console) {\n return;\n }\n\n // Was setting these once outside of this function, but containing them\n // in the function makes it easier to test cases where console doesn't exist\n // when the module is executed.\n var fn = window.console[type];\n\n if (!fn && type === 'debug') {\n // Certain browsers don't have support for console.debug. For those, we\n // should default to the closest comparable log.\n fn = window.console.info || window.console.log;\n }\n\n // Bail out if there's no console or if this type is not allowed by the\n // current logging level.\n if (!fn || !lvl || !lvlRegExp.test(type)) {\n return;\n }\n\n // IEs previous to 11 log objects uselessly as \"[object Object]\"; so, JSONify\n // objects and arrays for those less-capable browsers.\n if (stringify) {\n args = args.map(function (a) {\n if (isObject(a) || Array.isArray(a)) {\n try {\n return JSON.stringify(a);\n } catch (x) {\n return String(a);\n }\n }\n\n // Cast to string before joining, so we get null and undefined explicitly\n // included in output (as we would in a modern console).\n return String(a);\n }).join(' ');\n }\n\n // Old IE versions do not allow .apply() for console methods (they are\n // reported as objects rather than functions).\n if (!fn.apply) {\n fn(args);\n } else {\n fn[Array.isArray(args) ? 'apply' : 'call'](window.console, args);\n }\n};\n\n/**\n * Logs plain debug messages. Similar to `console.log`.\n *\n * @class\n * @param {Mixed[]} args\n * One or more messages or objects that should be logged.\n */\nlog = function log() {\n for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n logByType('log', args);\n};\n\n/**\n * Enumeration of available logging levels, where the keys are the level names\n * and the values are `|`-separated strings containing logging methods allowed\n * in that logging level. These strings are used to create a regular expression\n * matching the function name being called.\n *\n * Levels provided by video.js are:\n *\n * - `off`: Matches no calls. Any value that can be cast to `false` will have\n * this effect. The most restrictive.\n * - `all`: Matches only Video.js-provided functions (`debug`, `log`,\n * `log.warn`, and `log.error`).\n * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.\n * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.\n * - `warn`: Matches `log.warn` and `log.error` calls.\n * - `error`: Matches only `log.error` calls.\n *\n * @type {Object}\n */\nlog.levels = {\n all: 'debug|log|warn|error',\n off: '',\n debug: 'debug|log|warn|error',\n info: 'log|warn|error',\n warn: 'warn|error',\n error: 'error',\n DEFAULT: level\n};\n\n/**\n * Get or set the current logging level. If a string matching a key from\n * {@link log.levels} is provided, acts as a setter. Regardless of argument,\n * returns the current logging level.\n *\n * @param {string} [lvl]\n * Pass to set a new logging level.\n *\n * @return {string}\n * The current logging level.\n */\nlog.level = function (lvl) {\n if (typeof lvl === 'string') {\n if (!log.levels.hasOwnProperty(lvl)) {\n throw new Error('\"' + lvl + '\" in not a valid log level');\n }\n level = lvl;\n }\n return level;\n};\n\n/**\n * Returns an array containing everything that has been logged to the history.\n *\n * This array is a shallow clone of the internal history record. However, its\n * contents are _not_ cloned; so, mutating objects inside this array will\n * mutate them in history.\n *\n * @return {Array}\n */\nlog.history = function () {\n return history ? [].concat(history) : [];\n};\n\n/**\n * Clears the internal history tracking, but does not prevent further history\n * tracking.\n */\nlog.history.clear = function () {\n if (history) {\n history.length = 0;\n }\n};\n\n/**\n * Disable history tracking if it is currently enabled.\n */\nlog.history.disable = function () {\n if (history !== null) {\n history.length = 0;\n history = null;\n }\n};\n\n/**\n * Enable history tracking if it is currently disabled.\n */\nlog.history.enable = function () {\n if (history === null) {\n history = [];\n }\n};\n\n/**\n * Logs error messages. Similar to `console.error`.\n *\n * @param {Mixed[]} args\n * One or more messages or objects that should be logged as an error\n */\nlog.error = function () {\n for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n args[_key2] = arguments[_key2];\n }\n\n return logByType('error', args);\n};\n\n/**\n * Logs warning messages. Similar to `console.warn`.\n *\n * @param {Mixed[]} args\n * One or more messages or objects that should be logged as a warning.\n */\nlog.warn = function () {\n for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {\n args[_key3] = arguments[_key3];\n }\n\n return logByType('warn', args);\n};\n\n/**\n * Logs debug messages. Similar to `console.debug`, but may also act as a comparable\n * log if `console.debug` is not available\n *\n * @param {Mixed[]} args\n * One or more messages or objects that should be logged as debug.\n */\nlog.debug = function () {\n for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {\n args[_key4] = arguments[_key4];\n }\n\n return logByType('debug', args);\n};\n\nvar log$1 = log;\n\n/**\n * @file computed-style.js\n * @module computed-style\n */\n/**\n * A safe getComputedStyle with an IE8 fallback.\n *\n * This is needed because in Firefox, if the player is loaded in an iframe with\n * `display:none`, then `getComputedStyle` returns `null`, so, we do a null-check to\n * make sure that the player doesn't break in these cases.\n *\n * @param {Element} el\n * The element you want the computed style of\n *\n * @param {string} prop\n * The property name you want\n *\n * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397\n *\n * @static\n * @const\n */\nfunction computedStyle(el, prop) {\n if (!el || !prop) {\n return '';\n }\n\n if (typeof window.getComputedStyle === 'function') {\n var cs = window.getComputedStyle(el);\n\n return cs ? cs[prop] : '';\n }\n\n return el.currentStyle[prop] || '';\n}\n\nvar _templateObject = taggedTemplateLiteralLoose(['Setting attributes in the second argument of createEl()\\n has been deprecated. Use the third argument instead.\\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.'], ['Setting attributes in the second argument of createEl()\\n has been deprecated. Use the third argument instead.\\n createEl(type, properties, attributes). Attempting to set ', ' to ', '.']);\n\n/**\n * @file dom.js\n * @module dom\n */\n/**\n * Detect if a value is a string with any non-whitespace characters.\n *\n * @param {string} str\n * The string to check\n *\n * @return {boolean}\n * - True if the string is non-blank\n * - False otherwise\n *\n */\nfunction isNonBlankString(str) {\n return typeof str === 'string' && /\\S/.test(str);\n}\n\n/**\n * Throws an error if the passed string has whitespace. This is used by\n * class methods to be relatively consistent with the classList API.\n *\n * @param {string} str\n * The string to check for whitespace.\n *\n * @throws {Error}\n * Throws an error if there is whitespace in the string.\n *\n */\nfunction throwIfWhitespace(str) {\n if (/\\s/.test(str)) {\n throw new Error('class has illegal whitespace characters');\n }\n}\n\n/**\n * Produce a regular expression for matching a className within an elements className.\n *\n * @param {string} className\n * The className to generate the RegExp for.\n *\n * @return {RegExp}\n * The RegExp that will check for a specific `className` in an elements\n * className.\n */\nfunction classRegExp(className) {\n return new RegExp('(^|\\\\s)' + className + '($|\\\\s)');\n}\n\n/**\n * Whether the current DOM interface appears to be real.\n *\n * @return {Boolean}\n */\nfunction isReal() {\n return (\n\n // Both document and window will never be undefined thanks to `global`.\n document === window.document &&\n\n // In IE < 9, DOM methods return \"object\" as their type, so all we can\n // confidently check is that it exists.\n typeof document.createElement !== 'undefined'\n );\n}\n\n/**\n * Determines, via duck typing, whether or not a value is a DOM element.\n *\n * @param {Mixed} value\n * The thing to check\n *\n * @return {boolean}\n * - True if it is a DOM element\n * - False otherwise\n */\nfunction isEl(value) {\n return isObject(value) && value.nodeType === 1;\n}\n\n/**\n * Determines if the current DOM is embedded in an iframe.\n *\n * @return {boolean}\n *\n */\nfunction isInFrame() {\n\n // We need a try/catch here because Safari will throw errors when attempting\n // to get either `parent` or `self`\n try {\n return window.parent !== window.self;\n } catch (x) {\n return true;\n }\n}\n\n/**\n * Creates functions to query the DOM using a given method.\n *\n * @param {string} method\n * The method to create the query with.\n *\n * @return {Function}\n * The query method\n */\nfunction createQuerier(method) {\n return function (selector, context) {\n if (!isNonBlankString(selector)) {\n return document[method](null);\n }\n if (isNonBlankString(context)) {\n context = document.querySelector(context);\n }\n\n var ctx = isEl(context) ? context : document;\n\n return ctx[method] && ctx[method](selector);\n };\n}\n\n/**\n * Creates an element and applies properties.\n *\n * @param {string} [tagName='div']\n * Name of tag to be created.\n *\n * @param {Object} [properties={}]\n * Element properties to be applied.\n *\n * @param {Object} [attributes={}]\n * Element attributes to be applied.\n *\n * @param {String|Element|TextNode|Array|Function} [content]\n * Contents for the element (see: {@link dom:normalizeContent})\n *\n * @return {Element}\n * The element that was created.\n */\nfunction createEl() {\n var tagName = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';\n var properties = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n var content = arguments[3];\n\n var el = document.createElement(tagName);\n\n Object.getOwnPropertyNames(properties).forEach(function (propName) {\n var val = properties[propName];\n\n // See #2176\n // We originally were accepting both properties and attributes in the\n // same object, but that doesn't work so well.\n if (propName.indexOf('aria-') !== -1 || propName === 'role' || propName === 'type') {\n log$1.warn(tsml(_templateObject, propName, val));\n el.setAttribute(propName, val);\n\n // Handle textContent since it's not supported everywhere and we have a\n // method for it.\n } else if (propName === 'textContent') {\n textContent(el, val);\n } else {\n el[propName] = val;\n }\n });\n\n Object.getOwnPropertyNames(attributes).forEach(function (attrName) {\n el.setAttribute(attrName, attributes[attrName]);\n });\n\n if (content) {\n appendContent(el, content);\n }\n\n return el;\n}\n\n/**\n * Injects text into an element, replacing any existing contents entirely.\n *\n * @param {Element} el\n * The element to add text content into\n *\n * @param {string} text\n * The text content to add.\n *\n * @return {Element}\n * The element with added text content.\n */\nfunction textContent(el, text) {\n if (typeof el.textContent === 'undefined') {\n el.innerText = text;\n } else {\n el.textContent = text;\n }\n return el;\n}\n\n/**\n * Insert an element as the first child node of another\n *\n * @param {Element} child\n * Element to insert\n *\n * @param {Element} parent\n * Element to insert child into\n */\nfunction prependTo(child, parent) {\n if (parent.firstChild) {\n parent.insertBefore(child, parent.firstChild);\n } else {\n parent.appendChild(child);\n }\n}\n\n/**\n * Check if an element has a CSS class\n *\n * @param {Element} element\n * Element to check\n *\n * @param {string} classToCheck\n * Class name to check for\n *\n * @return {boolean}\n * - True if the element had the class\n * - False otherwise.\n *\n * @throws {Error}\n * Throws an error if `classToCheck` has white space.\n */\nfunction hasClass(element, classToCheck) {\n throwIfWhitespace(classToCheck);\n if (element.classList) {\n return element.classList.contains(classToCheck);\n }\n return classRegExp(classToCheck).test(element.className);\n}\n\n/**\n * Add a CSS class name to an element\n *\n * @param {Element} element\n * Element to add class name to.\n *\n * @param {string} classToAdd\n * Class name to add.\n *\n * @return {Element}\n * The dom element with the added class name.\n */\nfunction addClass(element, classToAdd) {\n if (element.classList) {\n element.classList.add(classToAdd);\n\n // Don't need to `throwIfWhitespace` here because `hasElClass` will do it\n // in the case of classList not being supported.\n } else if (!hasClass(element, classToAdd)) {\n element.className = (element.className + ' ' + classToAdd).trim();\n }\n\n return element;\n}\n\n/**\n * Remove a CSS class name from an element\n *\n * @param {Element} element\n * Element to remove a class name from.\n *\n * @param {string} classToRemove\n * Class name to remove\n *\n * @return {Element}\n * The dom element with class name removed.\n */\nfunction removeClass(element, classToRemove) {\n if (element.classList) {\n element.classList.remove(classToRemove);\n } else {\n throwIfWhitespace(classToRemove);\n element.className = element.className.split(/\\s+/).filter(function (c) {\n return c !== classToRemove;\n }).join(' ');\n }\n\n return element;\n}\n\n/**\n * The callback definition for toggleElClass.\n *\n * @callback Dom~PredicateCallback\n * @param {Element} element\n * The DOM element of the Component.\n *\n * @param {string} classToToggle\n * The `className` that wants to be toggled\n *\n * @return {boolean|undefined}\n * - If true the `classToToggle` will get added to `element`.\n * - If false the `classToToggle` will get removed from `element`.\n * - If undefined this callback will be ignored\n */\n\n/**\n * Adds or removes a CSS class name on an element depending on an optional\n * condition or the presence/absence of the class name.\n *\n * @param {Element} element\n * The element to toggle a class name on.\n *\n * @param {string} classToToggle\n * The class that should be toggled\n *\n * @param {boolean|PredicateCallback} [predicate]\n * See the return value for {@link Dom~PredicateCallback}\n *\n * @return {Element}\n * The element with a class that has been toggled.\n */\nfunction toggleClass(element, classToToggle, predicate) {\n\n // This CANNOT use `classList` internally because IE does not support the\n // second parameter to the `classList.toggle()` method! Which is fine because\n // `classList` will be used by the add/remove functions.\n var has = hasClass(element, classToToggle);\n\n if (typeof predicate === 'function') {\n predicate = predicate(element, classToToggle);\n }\n\n if (typeof predicate !== 'boolean') {\n predicate = !has;\n }\n\n // If the necessary class operation matches the current state of the\n // element, no action is required.\n if (predicate === has) {\n return;\n }\n\n if (predicate) {\n addClass(element, classToToggle);\n } else {\n removeClass(element, classToToggle);\n }\n\n return element;\n}\n\n/**\n * Apply attributes to an HTML element.\n *\n * @param {Element} el\n * Element to add attributes to.\n *\n * @param {Object} [attributes]\n * Attributes to be applied.\n */\nfunction setAttributes(el, attributes) {\n Object.getOwnPropertyNames(attributes).forEach(function (attrName) {\n var attrValue = attributes[attrName];\n\n if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {\n el.removeAttribute(attrName);\n } else {\n el.setAttribute(attrName, attrValue === true ? '' : attrValue);\n }\n });\n}\n\n/**\n * Get an element's attribute values, as defined on the HTML tag\n * Attributes are not the same as properties. They're defined on the tag\n * or with setAttribute (which shouldn't be used with HTML)\n * This will return true or false for boolean attributes.\n *\n * @param {Element} tag\n * Element from which to get tag attributes.\n *\n * @return {Object}\n * All attributes of the element.\n */\nfunction getAttributes(tag) {\n var obj = {};\n\n // known boolean attributes\n // we can check for matching boolean properties, but older browsers\n // won't know about HTML5 boolean attributes that we still read from\n var knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';\n\n if (tag && tag.attributes && tag.attributes.length > 0) {\n var attrs = tag.attributes;\n\n for (var i = attrs.length - 1; i >= 0; i--) {\n var attrName = attrs[i].name;\n var attrVal = attrs[i].value;\n\n // check for known booleans\n // the matching element property will return a value for typeof\n if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {\n // the value of an included boolean attribute is typically an empty\n // string ('') which would equal false if we just check for a false value.\n // we also don't want support bad code like autoplay='false'\n attrVal = attrVal !== null ? true : false;\n }\n\n obj[attrName] = attrVal;\n }\n }\n\n return obj;\n}\n\n/**\n * Get the value of an element's attribute\n *\n * @param {Element} el\n * A DOM element\n *\n * @param {string} attribute\n * Attribute to get the value of\n *\n * @return {string}\n * value of the attribute\n */\nfunction getAttribute(el, attribute) {\n return el.getAttribute(attribute);\n}\n\n/**\n * Set the value of an element's attribute\n *\n * @param {Element} el\n * A DOM element\n *\n * @param {string} attribute\n * Attribute to set\n *\n * @param {string} value\n * Value to set the attribute to\n */\nfunction setAttribute(el, attribute, value) {\n el.setAttribute(attribute, value);\n}\n\n/**\n * Remove an element's attribute\n *\n * @param {Element} el\n * A DOM element\n *\n * @param {string} attribute\n * Attribute to remove\n */\nfunction removeAttribute(el, attribute) {\n el.removeAttribute(attribute);\n}\n\n/**\n * Attempt to block the ability to select text while dragging controls\n */\nfunction blockTextSelection() {\n document.body.focus();\n document.onselectstart = function () {\n return false;\n };\n}\n\n/**\n * Turn off text selection blocking\n */\nfunction unblockTextSelection() {\n document.onselectstart = function () {\n return true;\n };\n}\n\n/**\n * Identical to the native `getBoundingClientRect` function, but ensures that\n * the method is supported at all (it is in all browsers we claim to support)\n * and that the element is in the DOM before continuing.\n *\n * This wrapper function also shims properties which are not provided by some\n * older browsers (namely, IE8).\n *\n * Additionally, some browsers do not support adding properties to a\n * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard\n * properties (except `x` and `y` which are not widely supported). This helps\n * avoid implementations where keys are non-enumerable.\n *\n * @param {Element} el\n * Element whose `ClientRect` we want to calculate.\n *\n * @return {Object|undefined}\n * Always returns a plain\n */\nfunction getBoundingClientRect(el) {\n if (el && el.getBoundingClientRect && el.parentNode) {\n var rect = el.getBoundingClientRect();\n var result = {};\n\n ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(function (k) {\n if (rect[k] !== undefined) {\n result[k] = rect[k];\n }\n });\n\n if (!result.height) {\n result.height = parseFloat(computedStyle(el, 'height'));\n }\n\n if (!result.width) {\n result.width = parseFloat(computedStyle(el, 'width'));\n }\n\n return result;\n }\n}\n\n/**\n * The postion of a DOM element on the page.\n *\n * @typedef {Object} module:dom~Position\n *\n * @property {number} left\n * Pixels to the left\n *\n * @property {number} top\n * Pixels on top\n */\n\n/**\n * Offset Left.\n * getBoundingClientRect technique from\n * John Resig\n *\n * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/\n *\n * @param {Element} el\n * Element from which to get offset\n *\n * @return {module:dom~Position}\n * The position of the element that was passed in.\n */\nfunction findPosition(el) {\n var box = void 0;\n\n if (el.getBoundingClientRect && el.parentNode) {\n box = el.getBoundingClientRect();\n }\n\n if (!box) {\n return {\n left: 0,\n top: 0\n };\n }\n\n var docEl = document.documentElement;\n var body = document.body;\n\n var clientLeft = docEl.clientLeft || body.clientLeft || 0;\n var scrollLeft = window.pageXOffset || body.scrollLeft;\n var left = box.left + scrollLeft - clientLeft;\n\n var clientTop = docEl.clientTop || body.clientTop || 0;\n var scrollTop = window.pageYOffset || body.scrollTop;\n var top = box.top + scrollTop - clientTop;\n\n // Android sometimes returns slightly off decimal values, so need to round\n return {\n left: Math.round(left),\n top: Math.round(top)\n };\n}\n\n/**\n * x and y coordinates for a dom element or mouse pointer\n *\n * @typedef {Object} Dom~Coordinates\n *\n * @property {number} x\n * x coordinate in pixels\n *\n * @property {number} y\n * y coordinate in pixels\n */\n\n/**\n * Get pointer position in element\n * Returns an object with x and y coordinates.\n * The base on the coordinates are the bottom left of the element.\n *\n * @param {Element} el\n * Element on which to get the pointer position on\n *\n * @param {EventTarget~Event} event\n * Event object\n *\n * @return {Dom~Coordinates}\n * A Coordinates object corresponding to the mouse position.\n *\n */\nfunction getPointerPosition(el, event) {\n var position = {};\n var box = findPosition(el);\n var boxW = el.offsetWidth;\n var boxH = el.offsetHeight;\n\n var boxY = box.top;\n var boxX = box.left;\n var pageY = event.pageY;\n var pageX = event.pageX;\n\n if (event.changedTouches) {\n pageX = event.changedTouches[0].pageX;\n pageY = event.changedTouches[0].pageY;\n }\n\n position.y = Math.max(0, Math.min(1, (boxY - pageY + boxH) / boxH));\n position.x = Math.max(0, Math.min(1, (pageX - boxX) / boxW));\n\n return position;\n}\n\n/**\n * Determines, via duck typing, whether or not a value is a text node.\n *\n * @param {Mixed} value\n * Check if this value is a text node.\n *\n * @return {boolean}\n * - True if it is a text node\n * - False otherwise\n */\nfunction isTextNode(value) {\n return isObject(value) && value.nodeType === 3;\n}\n\n/**\n * Empties the contents of an element.\n *\n * @param {Element} el\n * The element to empty children from\n *\n * @return {Element}\n * The element with no children\n */\nfunction emptyEl(el) {\n while (el.firstChild) {\n el.removeChild(el.firstChild);\n }\n return el;\n}\n\n/**\n * Normalizes content for eventual insertion into the DOM.\n *\n * This allows a wide range of content definition methods, but protects\n * from falling into the trap of simply writing to `innerHTML`, which is\n * an XSS concern.\n *\n * The content for an element can be passed in multiple types and\n * combinations, whose behavior is as follows:\n *\n * @param {String|Element|TextNode|Array|Function} content\n * - String: Normalized into a text node.\n * - Element/TextNode: Passed through.\n * - Array: A one-dimensional array of strings, elements, nodes, or functions\n * (which return single strings, elements, or nodes).\n * - Function: If the sole argument, is expected to produce a string, element,\n * node, or array as defined above.\n *\n * @return {Array}\n * All of the content that was passed in normalized.\n */\nfunction normalizeContent(content) {\n\n // First, invoke content if it is a function. If it produces an array,\n // that needs to happen before normalization.\n if (typeof content === 'function') {\n content = content();\n }\n\n // Next up, normalize to an array, so one or many items can be normalized,\n // filtered, and returned.\n return (Array.isArray(content) ? content : [content]).map(function (value) {\n\n // First, invoke value if it is a function to produce a new value,\n // which will be subsequently normalized to a Node of some kind.\n if (typeof value === 'function') {\n value = value();\n }\n\n if (isEl(value) || isTextNode(value)) {\n return value;\n }\n\n if (typeof value === 'string' && /\\S/.test(value)) {\n return document.createTextNode(value);\n }\n }).filter(function (value) {\n return value;\n });\n}\n\n/**\n * Normalizes and appends content to an element.\n *\n * @param {Element} el\n * Element to append normalized content to.\n *\n *\n * @param {String|Element|TextNode|Array|Function} content\n * See the `content` argument of {@link dom:normalizeContent}\n *\n * @return {Element}\n * The element with appended normalized content.\n */\nfunction appendContent(el, content) {\n normalizeContent(content).forEach(function (node) {\n return el.appendChild(node);\n });\n return el;\n}\n\n/**\n * Normalizes and inserts content into an element; this is identical to\n * `appendContent()`, except it empties the element first.\n *\n * @param {Element} el\n * Element to insert normalized content into.\n *\n * @param {String|Element|TextNode|Array|Function} content\n * See the `content` argument of {@link dom:normalizeContent}\n *\n * @return {Element}\n * The element with inserted normalized content.\n *\n */\nfunction insertContent(el, content) {\n return appendContent(emptyEl(el), content);\n}\n\n/**\n * Check if event was a single left click\n *\n * @param {EventTarget~Event} event\n * Event object\n *\n * @return {boolean}\n * - True if a left click\n * - False if not a left click\n */\nfunction isSingleLeftClick(event) {\n // Note: if you create something draggable, be sure to\n // call it on both `mousedown` and `mousemove` event,\n // otherwise `mousedown` should be enough for a button\n\n if (event.button === undefined && event.buttons === undefined) {\n // Why do we need `buttons` ?\n // Because, middle mouse sometimes have this:\n // e.button === 0 and e.buttons === 4\n // Furthermore, we want to prevent combination click, something like\n // HOLD middlemouse then left click, that would be\n // e.button === 0, e.buttons === 5\n // just `button` is not gonna work\n\n // Alright, then what this block does ?\n // this is for chrome `simulate mobile devices`\n // I want to support this as well\n\n return true;\n }\n\n if (event.button === 0 && event.buttons === undefined) {\n // Touch screen, sometimes on some specific device, `buttons`\n // doesn't have anything (safari on ios, blackberry...)\n\n return true;\n }\n\n if (IE_VERSION === 9) {\n // Ignore IE9\n\n return true;\n }\n\n if (event.button !== 0 || event.buttons !== 1) {\n // This is the reason we have those if else block above\n // if any special case we can catch and let it slide\n // we do it above, when get to here, this definitely\n // is-not-left-click\n\n return false;\n }\n\n return true;\n}\n\n/**\n * Finds a single DOM element matching `selector` within the optional\n * `context` of another DOM element (defaulting to `document`).\n *\n * @param {string} selector\n * A valid CSS selector, which will be passed to `querySelector`.\n *\n * @param {Element|String} [context=document]\n * A DOM element within which to query. Can also be a selector\n * string in which case the first matching element will be used\n * as context. If missing (or no element matches selector), falls\n * back to `document`.\n *\n * @return {Element|null}\n * The element that was found or null.\n */\nvar $ = createQuerier('querySelector');\n\n/**\n * Finds a all DOM elements matching `selector` within the optional\n * `context` of another DOM element (defaulting to `document`).\n *\n * @param {string} selector\n * A valid CSS selector, which will be passed to `querySelectorAll`.\n *\n * @param {Element|String} [context=document]\n * A DOM element within which to query. Can also be a selector\n * string in which case the first matching element will be used\n * as context. If missing (or no element matches selector), falls\n * back to `document`.\n *\n * @return {NodeList}\n * A element list of elements that were found. Will be empty if none were found.\n *\n */\nvar $$ = createQuerier('querySelectorAll');\n\n\n\nvar Dom = (Object.freeze || Object)({\n\tisReal: isReal,\n\tisEl: isEl,\n\tisInFrame: isInFrame,\n\tcreateEl: createEl,\n\ttextContent: textContent,\n\tprependTo: prependTo,\n\thasClass: hasClass,\n\taddClass: addClass,\n\tremoveClass: removeClass,\n\ttoggleClass: toggleClass,\n\tsetAttributes: setAttributes,\n\tgetAttributes: getAttributes,\n\tgetAttribute: getAttribute,\n\tsetAttribute: setAttribute,\n\tremoveAttribute: removeAttribute,\n\tblockTextSelection: blockTextSelection,\n\tunblockTextSelection: unblockTextSelection,\n\tgetBoundingClientRect: getBoundingClientRect,\n\tfindPosition: findPosition,\n\tgetPointerPosition: getPointerPosition,\n\tisTextNode: isTextNode,\n\temptyEl: emptyEl,\n\tnormalizeContent: normalizeContent,\n\tappendContent: appendContent,\n\tinsertContent: insertContent,\n\tisSingleLeftClick: isSingleLeftClick,\n\t$: $,\n\t$$: $$\n});\n\n/**\n * @file guid.js\n * @module guid\n */\n\n/**\n * Unique ID for an element or function\n * @type {Number}\n */\nvar _guid = 1;\n\n/**\n * Get a unique auto-incrementing ID by number that has not been returned before.\n *\n * @return {number}\n * A new unique ID.\n */\nfunction newGUID() {\n return _guid++;\n}\n\n/**\n * @file dom-data.js\n * @module dom-data\n */\n/**\n * Element Data Store.\n *\n * Allows for binding data to an element without putting it directly on the\n * element. Ex. Event listeners are stored here.\n * (also from jsninja.com, slightly modified and updated for closure compiler)\n *\n * @type {Object}\n * @private\n */\nvar elData = {};\n\n/*\n * Unique attribute name to store an element's guid in\n *\n * @type {String}\n * @constant\n * @private\n */\nvar elIdAttr = 'vdata' + new Date().getTime();\n\n/**\n * Returns the cache object where data for an element is stored\n *\n * @param {Element} el\n * Element to store data for.\n *\n * @return {Object}\n * The cache object for that el that was passed in.\n */\nfunction getData(el) {\n var id = el[elIdAttr];\n\n if (!id) {\n id = el[elIdAttr] = newGUID();\n }\n\n if (!elData[id]) {\n elData[id] = {};\n }\n\n return elData[id];\n}\n\n/**\n * Returns whether or not an element has cached data\n *\n * @param {Element} el\n * Check if this element has cached data.\n *\n * @return {boolean}\n * - True if the DOM element has cached data.\n * - False otherwise.\n */\nfunction hasData(el) {\n var id = el[elIdAttr];\n\n if (!id) {\n return false;\n }\n\n return !!Object.getOwnPropertyNames(elData[id]).length;\n}\n\n/**\n * Delete data for the element from the cache and the guid attr from getElementById\n *\n * @param {Element} el\n * Remove cached data for this element.\n */\nfunction removeData(el) {\n var id = el[elIdAttr];\n\n if (!id) {\n return;\n }\n\n // Remove all stored data\n delete elData[id];\n\n // Remove the elIdAttr property from the DOM node\n try {\n delete el[elIdAttr];\n } catch (e) {\n if (el.removeAttribute) {\n el.removeAttribute(elIdAttr);\n } else {\n // IE doesn't appear to support removeAttribute on the document element\n el[elIdAttr] = null;\n }\n }\n}\n\n/**\n * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)\n * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)\n * This should work very similarly to jQuery's events, however it's based off the book version which isn't as\n * robust as jquery's, so there's probably some differences.\n *\n * @module events\n */\n\n/**\n * Clean up the listener cache and dispatchers\n *\n * @param {Element|Object} elem\n * Element to clean up\n *\n * @param {string} type\n * Type of event to clean up\n */\nfunction _cleanUpEvents(elem, type) {\n var data = getData(elem);\n\n // Remove the events of a particular type if there are none left\n if (data.handlers[type].length === 0) {\n delete data.handlers[type];\n // data.handlers[type] = null;\n // Setting to null was causing an error with data.handlers\n\n // Remove the meta-handler from the element\n if (elem.removeEventListener) {\n elem.removeEventListener(type, data.dispatcher, false);\n } else if (elem.detachEvent) {\n elem.detachEvent('on' + type, data.dispatcher);\n }\n }\n\n // Remove the events object if there are no types left\n if (Object.getOwnPropertyNames(data.handlers).length <= 0) {\n delete data.handlers;\n delete data.dispatcher;\n delete data.disabled;\n }\n\n // Finally remove the element data if there is no data left\n if (Object.getOwnPropertyNames(data).length === 0) {\n removeData(elem);\n }\n}\n\n/**\n * Loops through an array of event types and calls the requested method for each type.\n *\n * @param {Function} fn\n * The event method we want to use.\n *\n * @param {Element|Object} elem\n * Element or object to bind listeners to\n *\n * @param {string} type\n * Type of event to bind to.\n *\n * @param {EventTarget~EventListener} callback\n * Event listener.\n */\nfunction _handleMultipleEvents(fn, elem, types, callback) {\n types.forEach(function (type) {\n // Call the event method for each one of the types\n fn(elem, type, callback);\n });\n}\n\n/**\n * Fix a native event to have standard property values\n *\n * @param {Object} event\n * Event object to fix.\n *\n * @return {Object}\n * Fixed event object.\n */\nfunction fixEvent(event) {\n\n function returnTrue() {\n return true;\n }\n\n function returnFalse() {\n return false;\n }\n\n // Test if fixing up is needed\n // Used to check if !event.stopPropagation instead of isPropagationStopped\n // But native events return true for stopPropagation, but don't have\n // other expected methods like isPropagationStopped. Seems to be a problem\n // with the Javascript Ninja code. So we're just overriding all events now.\n if (!event || !event.isPropagationStopped) {\n var old = event || window.event;\n\n event = {};\n // Clone the old object so that we can modify the values event = {};\n // IE8 Doesn't like when you mess with native event properties\n // Firefox returns false for event.hasOwnProperty('type') and other props\n // which makes copying more difficult.\n // TODO: Probably best to create a whitelist of event props\n for (var key in old) {\n // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y\n // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation\n // and webkitMovementX/Y\n if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY') {\n // Chrome 32+ warns if you try to copy deprecated returnValue, but\n // we still want to if preventDefault isn't supported (IE8).\n if (!(key === 'returnValue' && old.preventDefault)) {\n event[key] = old[key];\n }\n }\n }\n\n // The event occurred on this element\n if (!event.target) {\n event.target = event.srcElement || document;\n }\n\n // Handle which other element the event is related to\n if (!event.relatedTarget) {\n event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;\n }\n\n // Stop the default browser action\n event.preventDefault = function () {\n if (old.preventDefault) {\n old.preventDefault();\n }\n event.returnValue = false;\n old.returnValue = false;\n event.defaultPrevented = true;\n };\n\n event.defaultPrevented = false;\n\n // Stop the event from bubbling\n event.stopPropagation = function () {\n if (old.stopPropagation) {\n old.stopPropagation();\n }\n event.cancelBubble = true;\n old.cancelBubble = true;\n event.isPropagationStopped = returnTrue;\n };\n\n event.isPropagationStopped = returnFalse;\n\n // Stop the event from bubbling and executing other handlers\n event.stopImmediatePropagation = function () {\n if (old.stopImmediatePropagation) {\n old.stopImmediatePropagation();\n }\n event.isImmediatePropagationStopped = returnTrue;\n event.stopPropagation();\n };\n\n event.isImmediatePropagationStopped = returnFalse;\n\n // Handle mouse position\n if (event.clientX !== null && event.clientX !== undefined) {\n var doc = document.documentElement;\n var body = document.body;\n\n event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);\n event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);\n }\n\n // Handle key presses\n event.which = event.charCode || event.keyCode;\n\n // Fix button for mouse clicks:\n // 0 == left; 1 == middle; 2 == right\n if (event.button !== null && event.button !== undefined) {\n\n // The following is disabled because it does not pass videojs-standard\n // and... yikes.\n /* eslint-disable */\n event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;\n /* eslint-enable */\n }\n }\n\n // Returns fixed-up instance\n return event;\n}\n\n/**\n * Whether passive event listeners are supported\n */\nvar _supportsPassive = false;\n\n(function () {\n try {\n var opts = Object.defineProperty({}, 'passive', {\n get: function get() {\n _supportsPassive = true;\n }\n });\n\n window.addEventListener('test', null, opts);\n window.removeEventListener('test', null, opts);\n } catch (e) {\n // disregard\n }\n})();\n\n/**\n * Touch events Chrome expects to be passive\n */\nvar passiveEvents = ['touchstart', 'touchmove'];\n\n/**\n * Add an event listener to element\n * It stores the handler function in a separate cache object\n * and adds a generic handler to the element's event,\n * along with a unique id (guid) to the element.\n *\n * @param {Element|Object} elem\n * Element or object to bind listeners to\n *\n * @param {string|string[]} type\n * Type of event to bind to.\n *\n * @param {EventTarget~EventListener} fn\n * Event listener.\n */\nfunction on(elem, type, fn) {\n if (Array.isArray(type)) {\n return _handleMultipleEvents(on, elem, type, fn);\n }\n\n var data = getData(elem);\n\n // We need a place to store all our handler data\n if (!data.handlers) {\n data.handlers = {};\n }\n\n if (!data.handlers[type]) {\n data.handlers[type] = [];\n }\n\n if (!fn.guid) {\n fn.guid = newGUID();\n }\n\n data.handlers[type].push(fn);\n\n if (!data.dispatcher) {\n data.disabled = false;\n\n data.dispatcher = function (event, hash) {\n\n if (data.disabled) {\n return;\n }\n\n event = fixEvent(event);\n\n var handlers = data.handlers[event.type];\n\n if (handlers) {\n // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.\n var handlersCopy = handlers.slice(0);\n\n for (var m = 0, n = handlersCopy.length; m < n; m++) {\n if (event.isImmediatePropagationStopped()) {\n break;\n } else {\n try {\n handlersCopy[m].call(elem, event, hash);\n } catch (e) {\n log$1.error(e);\n }\n }\n }\n }\n };\n }\n\n if (data.handlers[type].length === 1) {\n if (elem.addEventListener) {\n var options = false;\n\n if (_supportsPassive && passiveEvents.indexOf(type) > -1) {\n options = { passive: true };\n }\n elem.addEventListener(type, data.dispatcher, options);\n } else if (elem.attachEvent) {\n elem.attachEvent('on' + type, data.dispatcher);\n }\n }\n}\n\n/**\n * Removes event listeners from an element\n *\n * @param {Element|Object} elem\n * Object to remove listeners from.\n *\n * @param {string|string[]} [type]\n * Type of listener to remove. Don't include to remove all events from element.\n *\n * @param {EventTarget~EventListener} [fn]\n * Specific listener to remove. Don't include to remove listeners for an event\n * type.\n */\nfunction off(elem, type, fn) {\n // Don't want to add a cache object through getElData if not needed\n if (!hasData(elem)) {\n return;\n }\n\n var data = getData(elem);\n\n // If no events exist, nothing to unbind\n if (!data.handlers) {\n return;\n }\n\n if (Array.isArray(type)) {\n return _handleMultipleEvents(off, elem, type, fn);\n }\n\n // Utility function\n var removeType = function removeType(el, t) {\n data.handlers[t] = [];\n _cleanUpEvents(el, t);\n };\n\n // Are we removing all bound events?\n if (type === undefined) {\n for (var t in data.handlers) {\n if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {\n removeType(elem, t);\n }\n }\n return;\n }\n\n var handlers = data.handlers[type];\n\n // If no handlers exist, nothing to unbind\n if (!handlers) {\n return;\n }\n\n // If no listener was provided, remove all listeners for type\n if (!fn) {\n removeType(elem, type);\n return;\n }\n\n // We're only removing a single handler\n if (fn.guid) {\n for (var n = 0; n < handlers.length; n++) {\n if (handlers[n].guid === fn.guid) {\n handlers.splice(n--, 1);\n }\n }\n }\n\n _cleanUpEvents(elem, type);\n}\n\n/**\n * Trigger an event for an element\n *\n * @param {Element|Object} elem\n * Element to trigger an event on\n *\n * @param {EventTarget~Event|string} event\n * A string (the type) or an event object with a type attribute\n *\n * @param {Object} [hash]\n * data hash to pass along with the event\n *\n * @return {boolean|undefined}\n * - Returns the opposite of `defaultPrevented` if default was prevented\n * - Otherwise returns undefined\n */\nfunction trigger(elem, event, hash) {\n // Fetches element data and a reference to the parent (for bubbling).\n // Don't want to add a data object to cache for every parent,\n // so checking hasElData first.\n var elemData = hasData(elem) ? getData(elem) : {};\n var parent = elem.parentNode || elem.ownerDocument;\n // type = event.type || event,\n // handler;\n\n // If an event name was passed as a string, creates an event out of it\n if (typeof event === 'string') {\n event = { type: event, target: elem };\n } else if (!event.target) {\n event.target = elem;\n }\n\n // Normalizes the event properties.\n event = fixEvent(event);\n\n // If the passed element has a dispatcher, executes the established handlers.\n if (elemData.dispatcher) {\n elemData.dispatcher.call(elem, event, hash);\n }\n\n // Unless explicitly stopped or the event does not bubble (e.g. media events)\n // recursively calls this function to bubble the event up the DOM.\n if (parent && !event.isPropagationStopped() && event.bubbles === true) {\n trigger.call(null, parent, event, hash);\n\n // If at the top of the DOM, triggers the default action unless disabled.\n } else if (!parent && !event.defaultPrevented) {\n var targetData = getData(event.target);\n\n // Checks if the target has a default action for this event.\n if (event.target[event.type]) {\n // Temporarily disables event dispatching on the target as we have already executed the handler.\n targetData.disabled = true;\n // Executes the default action.\n if (typeof event.target[event.type] === 'function') {\n event.target[event.type]();\n }\n // Re-enables event dispatching.\n targetData.disabled = false;\n }\n }\n\n // Inform the triggerer if the default was prevented by returning false\n return !event.defaultPrevented;\n}\n\n/**\n * Trigger a listener only once for an event\n *\n * @param {Element|Object} elem\n * Element or object to bind to.\n *\n * @param {string|string[]} type\n * Name/type of event\n *\n * @param {Event~EventListener} fn\n * Event Listener function\n */\nfunction one(elem, type, fn) {\n if (Array.isArray(type)) {\n return _handleMultipleEvents(one, elem, type, fn);\n }\n var func = function func() {\n off(elem, type, func);\n fn.apply(this, arguments);\n };\n\n // copy the guid to the new function so it can removed using the original function's ID\n func.guid = fn.guid = fn.guid || newGUID();\n on(elem, type, func);\n}\n\nvar Events = (Object.freeze || Object)({\n\tfixEvent: fixEvent,\n\ton: on,\n\toff: off,\n\ttrigger: trigger,\n\tone: one\n});\n\n/**\n * @file setup.js - Functions for setting up a player without\n * user interaction based on the data-setup `attribute` of the video tag.\n *\n * @module setup\n */\nvar _windowLoaded = false;\nvar videojs$2 = void 0;\n\n/**\n * Set up any tags that have a data-setup `attribute` when the player is started.\n */\nvar autoSetup = function autoSetup() {\n\n // Protect against breakage in non-browser environments and check global autoSetup option.\n if (!isReal() || videojs$2.options.autoSetup === false) {\n return;\n }\n\n // One day, when we stop supporting IE8, go back to this, but in the meantime...*hack hack hack*\n // var vids = Array.prototype.slice.call(document.getElementsByTagName('video'));\n // var audios = Array.prototype.slice.call(document.getElementsByTagName('audio'));\n // var mediaEls = vids.concat(audios);\n\n // Because IE8 doesn't support calling slice on a node list, we need to loop\n // through each list of elements to build up a new, combined list of elements.\n var vids = document.getElementsByTagName('video');\n var audios = document.getElementsByTagName('audio');\n var divs = document.getElementsByTagName('video-js');\n var mediaEls = [];\n\n if (vids && vids.length > 0) {\n for (var i = 0, e = vids.length; i < e; i++) {\n mediaEls.push(vids[i]);\n }\n }\n\n if (audios && audios.length > 0) {\n for (var _i = 0, _e = audios.length; _i < _e; _i++) {\n mediaEls.push(audios[_i]);\n }\n }\n\n if (divs && divs.length > 0) {\n for (var _i2 = 0, _e2 = divs.length; _i2 < _e2; _i2++) {\n mediaEls.push(divs[_i2]);\n }\n }\n\n // Check if any media elements exist\n if (mediaEls && mediaEls.length > 0) {\n\n for (var _i3 = 0, _e3 = mediaEls.length; _i3 < _e3; _i3++) {\n var mediaEl = mediaEls[_i3];\n\n // Check if element exists, has getAttribute func.\n // IE seems to consider typeof el.getAttribute == 'object' instead of\n // 'function' like expected, at least when loading the player immediately.\n if (mediaEl && mediaEl.getAttribute) {\n\n // Make sure this player hasn't already been set up.\n if (mediaEl.player === undefined) {\n var options = mediaEl.getAttribute('data-setup');\n\n // Check if data-setup attr exists.\n // We only auto-setup if they've added the data-setup attr.\n if (options !== null) {\n // Create new video.js instance.\n videojs$2(mediaEl);\n }\n }\n\n // If getAttribute isn't defined, we need to wait for the DOM.\n } else {\n autoSetupTimeout(1);\n break;\n }\n }\n\n // No videos were found, so keep looping unless page is finished loading.\n } else if (!_windowLoaded) {\n autoSetupTimeout(1);\n }\n};\n\n/**\n * Wait until the page is loaded before running autoSetup. This will be called in\n * autoSetup if `hasLoaded` returns false.\n *\n * @param {number} wait\n * How long to wait in ms\n *\n * @param {module:videojs} [vjs]\n * The videojs library function\n */\nfunction autoSetupTimeout(wait, vjs) {\n if (vjs) {\n videojs$2 = vjs;\n }\n\n window.setTimeout(autoSetup, wait);\n}\n\nif (isReal() && document.readyState === 'complete') {\n _windowLoaded = true;\n} else {\n /**\n * Listen for the load event on window, and set _windowLoaded to true.\n *\n * @listens load\n */\n one(window, 'load', function () {\n _windowLoaded = true;\n });\n}\n\n/**\n * @file stylesheet.js\n * @module stylesheet\n */\n/**\n * Create a DOM syle element given a className for it.\n *\n * @param {string} className\n * The className to add to the created style element.\n *\n * @return {Element}\n * The element that was created.\n */\nvar createStyleElement = function createStyleElement(className) {\n var style = document.createElement('style');\n\n style.className = className;\n\n return style;\n};\n\n/**\n * Add text to a DOM element.\n *\n * @param {Element} el\n * The Element to add text content to.\n *\n * @param {string} content\n * The text to add to the element.\n */\nvar setTextContent = function setTextContent(el, content) {\n if (el.styleSheet) {\n el.styleSheet.cssText = content;\n } else {\n el.textContent = content;\n }\n};\n\n/**\n * @file fn.js\n * @module fn\n */\n/**\n * Bind (a.k.a proxy or Context). A simple method for changing the context of a function\n * It also stores a unique id on the function so it can be easily removed from events.\n *\n * @param {Mixed} context\n * The object to bind as scope.\n *\n * @param {Function} fn\n * The function to be bound to a scope.\n *\n * @param {number} [uid]\n * An optional unique ID for the function to be set\n *\n * @return {Function}\n * The new function that will be bound into the context given\n */\nvar bind = function bind(context, fn, uid) {\n // Make sure the function has a unique ID\n if (!fn.guid) {\n fn.guid = newGUID();\n }\n\n // Create the new function that changes the context\n var bound = function bound() {\n return fn.apply(context, arguments);\n };\n\n // Allow for the ability to individualize this function\n // Needed in the case where multiple objects might share the same prototype\n // IF both items add an event listener with the same function, then you try to remove just one\n // it will remove both because they both have the same guid.\n // when using this, you need to use the bind method when you remove the listener as well.\n // currently used in text tracks\n bound.guid = uid ? uid + '_' + fn.guid : fn.guid;\n\n return bound;\n};\n\n/**\n * Wraps the given function, `fn`, with a new function that only invokes `fn`\n * at most once per every `wait` milliseconds.\n *\n * @param {Function} fn\n * The function to be throttled.\n *\n * @param {Number} wait\n * The number of milliseconds by which to throttle.\n *\n * @return {Function}\n */\nvar throttle = function throttle(fn, wait) {\n var last = Date.now();\n\n var throttled = function throttled() {\n var now = Date.now();\n\n if (now - last >= wait) {\n fn.apply(undefined, arguments);\n last = now;\n }\n };\n\n return throttled;\n};\n\n/**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked.\n *\n * Inspired by lodash and underscore implementations.\n *\n * @param {Function} func\n * The function to wrap with debounce behavior.\n *\n * @param {number} wait\n * The number of milliseconds to wait after the last invocation.\n *\n * @param {boolean} [immediate]\n * Whether or not to invoke the function immediately upon creation.\n *\n * @param {Object} [context=window]\n * The \"context\" in which the debounced function should debounce. For\n * example, if this function should be tied to a Video.js player,\n * the player can be passed here. Alternatively, defaults to the\n * global `window` object.\n *\n * @return {Function}\n * A debounced function.\n */\nvar debounce = function debounce(func, wait, immediate) {\n var context = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : window;\n\n var timeout = void 0;\n\n /* eslint-disable consistent-this */\n return function () {\n var self = this;\n var args = arguments;\n\n var _later = function later() {\n timeout = null;\n _later = null;\n if (!immediate) {\n func.apply(self, args);\n }\n };\n\n if (!timeout && immediate) {\n func.apply(self, args);\n }\n\n context.clearTimeout(timeout);\n timeout = context.setTimeout(_later, wait);\n };\n /* eslint-enable consistent-this */\n};\n\n/**\n * @file src/js/event-target.js\n */\n/**\n * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It\n * adds shorthand functions that wrap around lengthy functions. For example:\n * the `on` function is a wrapper around `addEventListener`.\n *\n * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}\n * @class EventTarget\n */\nvar EventTarget = function EventTarget() {};\n\n/**\n * A Custom DOM event.\n *\n * @typedef {Object} EventTarget~Event\n * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}\n */\n\n/**\n * All event listeners should follow the following format.\n *\n * @callback EventTarget~EventListener\n * @this {EventTarget}\n *\n * @param {EventTarget~Event} event\n * the event that triggered this function\n *\n * @param {Object} [hash]\n * hash of data sent during the event\n */\n\n/**\n * An object containing event names as keys and booleans as values.\n *\n * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}\n * will have extra functionality. See that function for more information.\n *\n * @property EventTarget.prototype.allowedEvents_\n * @private\n */\nEventTarget.prototype.allowedEvents_ = {};\n\n/**\n * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a\n * function that will get called when an event with a certain name gets triggered.\n *\n * @param {string|string[]} type\n * An event name or an array of event names.\n *\n * @param {EventTarget~EventListener} fn\n * The function to call with `EventTarget`s\n */\nEventTarget.prototype.on = function (type, fn) {\n // Remove the addEventListener alias before calling Events.on\n // so we don't get into an infinite type loop\n var ael = this.addEventListener;\n\n this.addEventListener = function () {};\n on(this, type, fn);\n this.addEventListener = ael;\n};\n\n/**\n * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic\n * the standard DOM API.\n *\n * @function\n * @see {@link EventTarget#on}\n */\nEventTarget.prototype.addEventListener = EventTarget.prototype.on;\n\n/**\n * Removes an `event listener` for a specific event from an instance of `EventTarget`.\n * This makes it so that the `event listener` will no longer get called when the\n * named event happens.\n *\n * @param {string|string[]} type\n * An event name or an array of event names.\n *\n * @param {EventTarget~EventListener} fn\n * The function to remove.\n */\nEventTarget.prototype.off = function (type, fn) {\n off(this, type, fn);\n};\n\n/**\n * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic\n * the standard DOM API.\n *\n * @function\n * @see {@link EventTarget#off}\n */\nEventTarget.prototype.removeEventListener = EventTarget.prototype.off;\n\n/**\n * This function will add an `event listener` that gets triggered only once. After the\n * first trigger it will get removed. This is like adding an `event listener`\n * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.\n *\n * @param {string|string[]} type\n * An event name or an array of event names.\n *\n * @param {EventTarget~EventListener} fn\n * The function to be called once for each event name.\n */\nEventTarget.prototype.one = function (type, fn) {\n // Remove the addEventListener alialing Events.on\n // so we don't get into an infinite type loop\n var ael = this.addEventListener;\n\n this.addEventListener = function () {};\n one(this, type, fn);\n this.addEventListener = ael;\n};\n\n/**\n * This function causes an event to happen. This will then cause any `event listeners`\n * that are waiting for that event, to get called. If there are no `event listeners`\n * for an event then nothing will happen.\n *\n * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.\n * Trigger will also call the `on` + `uppercaseEventName` function.\n *\n * Example:\n * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call\n * `onClick` if it exists.\n *\n * @param {string|EventTarget~Event|Object} event\n * The name of the event, an `Event`, or an object with a key of type set to\n * an event name.\n */\nEventTarget.prototype.trigger = function (event) {\n var type = event.type || event;\n\n if (typeof event === 'string') {\n event = { type: type };\n }\n event = fixEvent(event);\n\n if (this.allowedEvents_[type] && this['on' + type]) {\n this['on' + type](event);\n }\n\n trigger(this, event);\n};\n\n/**\n * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic\n * the standard DOM API.\n *\n * @function\n * @see {@link EventTarget#trigger}\n */\nEventTarget.prototype.dispatchEvent = EventTarget.prototype.trigger;\n\n/**\n * @file mixins/evented.js\n * @module evented\n */\n/**\n * Returns whether or not an object has had the evented mixin applied.\n *\n * @param {Object} object\n * An object to test.\n *\n * @return {boolean}\n * Whether or not the object appears to be evented.\n */\nvar isEvented = function isEvented(object) {\n return object instanceof EventTarget || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(function (k) {\n return typeof object[k] === 'function';\n });\n};\n\n/**\n * Whether a value is a valid event type - non-empty string or array.\n *\n * @private\n * @param {string|Array} type\n * The type value to test.\n *\n * @return {boolean}\n * Whether or not the type is a valid event type.\n */\nvar isValidEventType = function isValidEventType(type) {\n return (\n // The regex here verifies that the `type` contains at least one non-\n // whitespace character.\n typeof type === 'string' && /\\S/.test(type) || Array.isArray(type) && !!type.length\n );\n};\n\n/**\n * Validates a value to determine if it is a valid event target. Throws if not.\n *\n * @private\n * @throws {Error}\n * If the target does not appear to be a valid event target.\n *\n * @param {Object} target\n * The object to test.\n */\nvar validateTarget = function validateTarget(target) {\n if (!target.nodeName && !isEvented(target)) {\n throw new Error('Invalid target; must be a DOM node or evented object.');\n }\n};\n\n/**\n * Validates a value to determine if it is a valid event target. Throws if not.\n *\n * @private\n * @throws {Error}\n * If the type does not appear to be a valid event type.\n *\n * @param {string|Array} type\n * The type to test.\n */\nvar validateEventType = function validateEventType(type) {\n if (!isValidEventType(type)) {\n throw new Error('Invalid event type; must be a non-empty string or array.');\n }\n};\n\n/**\n * Validates a value to determine if it is a valid listener. Throws if not.\n *\n * @private\n * @throws {Error}\n * If the listener is not a function.\n *\n * @param {Function} listener\n * The listener to test.\n */\nvar validateListener = function validateListener(listener) {\n if (typeof listener !== 'function') {\n throw new Error('Invalid listener; must be a function.');\n }\n};\n\n/**\n * Takes an array of arguments given to `on()` or `one()`, validates them, and\n * normalizes them into an object.\n *\n * @private\n * @param {Object} self\n * The evented object on which `on()` or `one()` was called. This\n * object will be bound as the `this` value for the listener.\n *\n * @param {Array} args\n * An array of arguments passed to `on()` or `one()`.\n *\n * @return {Object}\n * An object containing useful values for `on()` or `one()` calls.\n */\nvar normalizeListenArgs = function normalizeListenArgs(self, args) {\n\n // If the number of arguments is less than 3, the target is always the\n // evented object itself.\n var isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;\n var target = void 0;\n var type = void 0;\n var listener = void 0;\n\n if (isTargetingSelf) {\n target = self.eventBusEl_;\n\n // Deal with cases where we got 3 arguments, but we are still listening to\n // the evented object itself.\n if (args.length >= 3) {\n args.shift();\n }\n\n type = args[0];\n listener = args[1];\n } else {\n target = args[0];\n type = args[1];\n listener = args[2];\n }\n\n validateTarget(target);\n validateEventType(type);\n validateListener(listener);\n\n listener = bind(self, listener);\n\n return { isTargetingSelf: isTargetingSelf, target: target, type: type, listener: listener };\n};\n\n/**\n * Adds the listener to the event type(s) on the target, normalizing for\n * the type of target.\n *\n * @private\n * @param {Element|Object} target\n * A DOM node or evented object.\n *\n * @param {string} method\n * The event binding method to use (\"on\" or \"one\").\n *\n * @param {string|Array} type\n * One or more event type(s).\n *\n * @param {Function} listener\n * A listener function.\n */\nvar listen = function listen(target, method, type, listener) {\n validateTarget(target);\n\n if (target.nodeName) {\n Events[method](target, type, listener);\n } else {\n target[method](type, listener);\n }\n};\n\n/**\n * Contains methods that provide event capabilites to an object which is passed\n * to {@link module:evented|evented}.\n *\n * @mixin EventedMixin\n */\nvar EventedMixin = {\n\n /**\n * Add a listener to an event (or events) on this object or another evented\n * object.\n *\n * @param {string|Array|Element|Object} targetOrType\n * If this is a string or array, it represents the event type(s)\n * that will trigger the listener.\n *\n * Another evented object can be passed here instead, which will\n * cause the listener to listen for events on _that_ object.\n *\n * In either case, the listener's `this` value will be bound to\n * this object.\n *\n * @param {string|Array|Function} typeOrListener\n * If the first argument was a string or array, this should be the\n * listener function. Otherwise, this is a string or array of event\n * type(s).\n *\n * @param {Function} [listener]\n * If the first argument was another evented object, this will be\n * the listener function.\n */\n on: function on$$1() {\n var _this = this;\n\n for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n var _normalizeListenArgs = normalizeListenArgs(this, args),\n isTargetingSelf = _normalizeListenArgs.isTargetingSelf,\n target = _normalizeListenArgs.target,\n type = _normalizeListenArgs.type,\n listener = _normalizeListenArgs.listener;\n\n listen(target, 'on', type, listener);\n\n // If this object is listening to another evented object.\n if (!isTargetingSelf) {\n\n // If this object is disposed, remove the listener.\n var removeListenerOnDispose = function removeListenerOnDispose() {\n return _this.off(target, type, listener);\n };\n\n // Use the same function ID as the listener so we can remove it later it\n // using the ID of the original listener.\n removeListenerOnDispose.guid = listener.guid;\n\n // Add a listener to the target's dispose event as well. This ensures\n // that if the target is disposed BEFORE this object, we remove the\n // removal listener that was just added. Otherwise, we create a memory leak.\n var removeRemoverOnTargetDispose = function removeRemoverOnTargetDispose() {\n return _this.off('dispose', removeListenerOnDispose);\n };\n\n // Use the same function ID as the listener so we can remove it later\n // it using the ID of the original listener.\n removeRemoverOnTargetDispose.guid = listener.guid;\n\n listen(this, 'on', 'dispose', removeListenerOnDispose);\n listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);\n }\n },\n\n\n /**\n * Add a listener to an event (or events) on this object or another evented\n * object. The listener will only be called once and then removed.\n *\n * @param {string|Array|Element|Object} targetOrType\n * If this is a string or array, it represents the event type(s)\n * that will trigger the listener.\n *\n * Another evented object can be passed here instead, which will\n * cause the listener to listen for events on _that_ object.\n *\n * In either case, the listener's `this` value will be bound to\n * this object.\n *\n * @param {string|Array|Function} typeOrListener\n * If the first argument was a string or array, this should be the\n * listener function. Otherwise, this is a string or array of event\n * type(s).\n *\n * @param {Function} [listener]\n * If the first argument was another evented object, this will be\n * the listener function.\n */\n one: function one$$1() {\n var _this2 = this;\n\n for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n args[_key2] = arguments[_key2];\n }\n\n var _normalizeListenArgs2 = normalizeListenArgs(this, args),\n isTargetingSelf = _normalizeListenArgs2.isTargetingSelf,\n target = _normalizeListenArgs2.target,\n type = _normalizeListenArgs2.type,\n listener = _normalizeListenArgs2.listener;\n\n // Targeting this evented object.\n\n\n if (isTargetingSelf) {\n listen(target, 'one', type, listener);\n\n // Targeting another evented object.\n } else {\n var wrapper = function wrapper() {\n for (var _len3 = arguments.length, largs = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {\n largs[_key3] = arguments[_key3];\n }\n\n _this2.off(target, type, wrapper);\n listener.apply(null, largs);\n };\n\n // Use the same function ID as the listener so we can remove it later\n // it using the ID of the original listener.\n wrapper.guid = listener.guid;\n listen(target, 'one', type, wrapper);\n }\n },\n\n\n /**\n * Removes listener(s) from event(s) on an evented object.\n *\n * @param {string|Array|Element|Object} [targetOrType]\n * If this is a string or array, it represents the event type(s).\n *\n * Another evented object can be passed here instead, in which case\n * ALL 3 arguments are _required_.\n *\n * @param {string|Array|Function} [typeOrListener]\n * If the first argument was a string or array, this may be the\n * listener function. Otherwise, this is a string or array of event\n * type(s).\n *\n * @param {Function} [listener]\n * If the first argument was another evented object, this will be\n * the listener function; otherwise, _all_ listeners bound to the\n * event type(s) will be removed.\n */\n off: function off$$1(targetOrType, typeOrListener, listener) {\n\n // Targeting this evented object.\n if (!targetOrType || isValidEventType(targetOrType)) {\n off(this.eventBusEl_, targetOrType, typeOrListener);\n\n // Targeting another evented object.\n } else {\n var target = targetOrType;\n var type = typeOrListener;\n\n // Fail fast and in a meaningful way!\n validateTarget(target);\n validateEventType(type);\n validateListener(listener);\n\n // Ensure there's at least a guid, even if the function hasn't been used\n listener = bind(this, listener);\n\n // Remove the dispose listener on this evented object, which was given\n // the same guid as the event listener in on().\n this.off('dispose', listener);\n\n if (target.nodeName) {\n off(target, type, listener);\n off(target, 'dispose', listener);\n } else if (isEvented(target)) {\n target.off(type, listener);\n target.off('dispose', listener);\n }\n }\n },\n\n\n /**\n * Fire an event on this evented object, causing its listeners to be called.\n *\n * @param {string|Object} event\n * An event type or an object with a type property.\n *\n * @param {Object} [hash]\n * An additional object to pass along to listeners.\n *\n * @returns {boolean}\n * Whether or not the default behavior was prevented.\n */\n trigger: function trigger$$1(event, hash) {\n return trigger(this.eventBusEl_, event, hash);\n }\n};\n\n/**\n * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.\n *\n * @param {Object} target\n * The object to which to add event methods.\n *\n * @param {Object} [options={}]\n * Options for customizing the mixin behavior.\n *\n * @param {String} [options.eventBusKey]\n * By default, adds a `eventBusEl_` DOM element to the target object,\n * which is used as an event bus. If the target object already has a\n * DOM element that should be used, pass its key here.\n *\n * @return {Object}\n * The target object.\n */\nfunction evented(target) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var eventBusKey = options.eventBusKey;\n\n // Set or create the eventBusEl_.\n\n if (eventBusKey) {\n if (!target[eventBusKey].nodeName) {\n throw new Error('The eventBusKey \"' + eventBusKey + '\" does not refer to an element.');\n }\n target.eventBusEl_ = target[eventBusKey];\n } else {\n target.eventBusEl_ = createEl('span', { className: 'vjs-event-bus' });\n }\n\n assign(target, EventedMixin);\n\n // When any evented object is disposed, it removes all its listeners.\n target.on('dispose', function () {\n target.off();\n window.setTimeout(function () {\n target.eventBusEl_ = null;\n }, 0);\n });\n\n return target;\n}\n\n/**\n * @file mixins/stateful.js\n * @module stateful\n */\n/**\n * Contains methods that provide statefulness to an object which is passed\n * to {@link module:stateful}.\n *\n * @mixin StatefulMixin\n */\nvar StatefulMixin = {\n\n /**\n * A hash containing arbitrary keys and values representing the state of\n * the object.\n *\n * @type {Object}\n */\n state: {},\n\n /**\n * Set the state of an object by mutating its\n * {@link module:stateful~StatefulMixin.state|state} object in place.\n *\n * @fires module:stateful~StatefulMixin#statechanged\n * @param {Object|Function} stateUpdates\n * A new set of properties to shallow-merge into the plugin state.\n * Can be a plain object or a function returning a plain object.\n *\n * @returns {Object|undefined}\n * An object containing changes that occurred. If no changes\n * occurred, returns `undefined`.\n */\n setState: function setState(stateUpdates) {\n var _this = this;\n\n // Support providing the `stateUpdates` state as a function.\n if (typeof stateUpdates === 'function') {\n stateUpdates = stateUpdates();\n }\n\n var changes = void 0;\n\n each(stateUpdates, function (value, key) {\n\n // Record the change if the value is different from what's in the\n // current state.\n if (_this.state[key] !== value) {\n changes = changes || {};\n changes[key] = {\n from: _this.state[key],\n to: value\n };\n }\n\n _this.state[key] = value;\n });\n\n // Only trigger \"statechange\" if there were changes AND we have a trigger\n // function. This allows us to not require that the target object be an\n // evented object.\n if (changes && isEvented(this)) {\n\n /**\n * An event triggered on an object that is both\n * {@link module:stateful|stateful} and {@link module:evented|evented}\n * indicating that its state has changed.\n *\n * @event module:stateful~StatefulMixin#statechanged\n * @type {Object}\n * @property {Object} changes\n * A hash containing the properties that were changed and\n * the values they were changed `from` and `to`.\n */\n this.trigger({\n changes: changes,\n type: 'statechanged'\n });\n }\n\n return changes;\n }\n};\n\n/**\n * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target\n * object.\n *\n * If the target object is {@link module:evented|evented} and has a\n * `handleStateChanged` method, that method will be automatically bound to the\n * `statechanged` event on itself.\n *\n * @param {Object} target\n * The object to be made stateful.\n *\n * @param {Object} [defaultState]\n * A default set of properties to populate the newly-stateful object's\n * `state` property.\n *\n * @returns {Object}\n * Returns the `target`.\n */\nfunction stateful(target, defaultState) {\n assign(target, StatefulMixin);\n\n // This happens after the mixing-in because we need to replace the `state`\n // added in that step.\n target.state = assign({}, target.state, defaultState);\n\n // Auto-bind the `handleStateChanged` method of the target object if it exists.\n if (typeof target.handleStateChanged === 'function' && isEvented(target)) {\n target.on('statechanged', target.handleStateChanged);\n }\n\n return target;\n}\n\n/**\n * @file to-title-case.js\n * @module to-title-case\n */\n\n/**\n * Uppercase the first letter of a string.\n *\n * @param {string} string\n * String to be uppercased\n *\n * @return {string}\n * The string with an uppercased first letter\n */\nfunction toTitleCase(string) {\n if (typeof string !== 'string') {\n return string;\n }\n\n return string.charAt(0).toUpperCase() + string.slice(1);\n}\n\n/**\n * Compares the TitleCase versions of the two strings for equality.\n *\n * @param {string} str1\n * The first string to compare\n *\n * @param {string} str2\n * The second string to compare\n *\n * @return {boolean}\n * Whether the TitleCase versions of the strings are equal\n */\nfunction titleCaseEquals(str1, str2) {\n return toTitleCase(str1) === toTitleCase(str2);\n}\n\n/**\n * @file merge-options.js\n * @module merge-options\n */\n/**\n * Deep-merge one or more options objects, recursively merging **only** plain\n * object properties.\n *\n * @param {Object[]} sources\n * One or more objects to merge into a new object.\n *\n * @returns {Object}\n * A new object that is the merged result of all sources.\n */\nfunction mergeOptions() {\n var result = {};\n\n for (var _len = arguments.length, sources = Array(_len), _key = 0; _key < _len; _key++) {\n sources[_key] = arguments[_key];\n }\n\n sources.forEach(function (source) {\n if (!source) {\n return;\n }\n\n each(source, function (value, key) {\n if (!isPlain(value)) {\n result[key] = value;\n return;\n }\n\n if (!isPlain(result[key])) {\n result[key] = {};\n }\n\n result[key] = mergeOptions(result[key], value);\n });\n });\n\n return result;\n}\n\n/**\n * Player Component - Base class for all UI objects\n *\n * @file component.js\n */\n/**\n * Base class for all UI Components.\n * Components are UI objects which represent both a javascript object and an element\n * in the DOM. They can be children of other components, and can have\n * children themselves.\n *\n * Components can also use methods from {@link EventTarget}\n */\n\nvar Component = function () {\n\n /**\n * A callback that is called when a component is ready. Does not have any\n * paramters and any callback value will be ignored.\n *\n * @callback Component~ReadyCallback\n * @this Component\n */\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n *\n * @param {Object[]} [options.children]\n * An array of children objects to intialize this component with. Children objects have\n * a name property that will be used if more than one component of the same type needs to be\n * added.\n *\n * @param {Component~ReadyCallback} [ready]\n * Function that gets called when the `Component` is ready.\n */\n function Component(player, options, ready) {\n classCallCheck(this, Component);\n\n\n // The component might be the player itself and we can't pass `this` to super\n if (!player && this.play) {\n this.player_ = player = this; // eslint-disable-line\n } else {\n this.player_ = player;\n }\n\n // Make a copy of prototype.options_ to protect against overriding defaults\n this.options_ = mergeOptions({}, this.options_);\n\n // Updated options with supplied options\n options = this.options_ = mergeOptions(this.options_, options);\n\n // Get ID from options or options element if one is supplied\n this.id_ = options.id || options.el && options.el.id;\n\n // If there was no ID from the options, generate one\n if (!this.id_) {\n // Don't require the player ID function in the case of mock players\n var id = player && player.id && player.id() || 'no_player';\n\n this.id_ = id + '_component_' + newGUID();\n }\n\n this.name_ = options.name || null;\n\n // Create element if one wasn't provided in options\n if (options.el) {\n this.el_ = options.el;\n } else if (options.createEl !== false) {\n this.el_ = this.createEl();\n }\n\n // if evented is anything except false, we want to mixin in evented\n if (options.evented !== false) {\n // Make this an evented object and use `el_`, if available, as its event bus\n evented(this, { eventBusKey: this.el_ ? 'el_' : null });\n }\n stateful(this, this.constructor.defaultState);\n\n this.children_ = [];\n this.childIndex_ = {};\n this.childNameIndex_ = {};\n\n // Add any child components in options\n if (options.initChildren !== false) {\n this.initChildren();\n }\n\n this.ready(ready);\n // Don't want to trigger ready here or it will before init is actually\n // finished for all children that run this constructor\n\n if (options.reportTouchActivity !== false) {\n this.enableTouchActivity();\n }\n }\n\n /**\n * Dispose of the `Component` and all child components.\n *\n * @fires Component#dispose\n */\n\n\n Component.prototype.dispose = function dispose() {\n\n /**\n * Triggered when a `Component` is disposed.\n *\n * @event Component#dispose\n * @type {EventTarget~Event}\n *\n * @property {boolean} [bubbles=false]\n * set to false so that the close event does not\n * bubble up\n */\n this.trigger({ type: 'dispose', bubbles: false });\n\n // Dispose all children.\n if (this.children_) {\n for (var i = this.children_.length - 1; i >= 0; i--) {\n if (this.children_[i].dispose) {\n this.children_[i].dispose();\n }\n }\n }\n\n // Delete child references\n this.children_ = null;\n this.childIndex_ = null;\n this.childNameIndex_ = null;\n\n if (this.el_) {\n // Remove element from DOM\n if (this.el_.parentNode) {\n this.el_.parentNode.removeChild(this.el_);\n }\n\n removeData(this.el_);\n this.el_ = null;\n }\n\n // remove reference to the player after disposing of the element\n this.player_ = null;\n };\n\n /**\n * Return the {@link Player} that the `Component` has attached to.\n *\n * @return {Player}\n * The player that this `Component` has attached to.\n */\n\n\n Component.prototype.player = function player() {\n return this.player_;\n };\n\n /**\n * Deep merge of options objects with new options.\n * > Note: When both `obj` and `options` contain properties whose values are objects.\n * The two properties get merged using {@link module:mergeOptions}\n *\n * @param {Object} obj\n * The object that contains new options.\n *\n * @return {Object}\n * A new object of `this.options_` and `obj` merged together.\n *\n * @deprecated since version 5\n */\n\n\n Component.prototype.options = function options(obj) {\n log$1.warn('this.options() has been deprecated and will be moved to the constructor in 6.0');\n\n if (!obj) {\n return this.options_;\n }\n\n this.options_ = mergeOptions(this.options_, obj);\n return this.options_;\n };\n\n /**\n * Get the `Component`s DOM element\n *\n * @return {Element}\n * The DOM element for this `Component`.\n */\n\n\n Component.prototype.el = function el() {\n return this.el_;\n };\n\n /**\n * Create the `Component`s DOM element.\n *\n * @param {string} [tagName]\n * Element's DOM node type. e.g. 'div'\n *\n * @param {Object} [properties]\n * An object of properties that should be set.\n *\n * @param {Object} [attributes]\n * An object of attributes that should be set.\n *\n * @return {Element}\n * The element that gets created.\n */\n\n\n Component.prototype.createEl = function createEl$$1(tagName, properties, attributes) {\n return createEl(tagName, properties, attributes);\n };\n\n /**\n * Localize a string given the string in english.\n *\n * If tokens are provided, it'll try and run a simple token replacement on the provided string.\n * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.\n *\n * If a `defaultValue` is provided, it'll use that over `string`,\n * if a value isn't found in provided language files.\n * This is useful if you want to have a descriptive key for token replacement\n * but have a succinct localized string and not require `en.json` to be included.\n *\n * Currently, it is used for the progress bar timing.\n * ```js\n * {\n * \"progress bar timing: currentTime={1} duration={2}\": \"{1} of {2}\"\n * }\n * ```\n * It is then used like so:\n * ```js\n * this.localize('progress bar timing: currentTime={1} duration{2}',\n * [this.player_.currentTime(), this.player_.duration()],\n * '{1} of {2}');\n * ```\n *\n * Which outputs something like: `01:23 of 24:56`.\n *\n *\n * @param {string} string\n * The string to localize and the key to lookup in the language files.\n * @param {string[]} [tokens]\n * If the current item has token replacements, provide the tokens here.\n * @param {string} [defaultValue]\n * Defaults to `string`. Can be a default value to use for token replacement\n * if the lookup key is needed to be separate.\n *\n * @return {string}\n * The localized string or if no localization exists the english string.\n */\n\n\n Component.prototype.localize = function localize(string, tokens) {\n var defaultValue = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : string;\n\n var code = this.player_.language && this.player_.language();\n var languages = this.player_.languages && this.player_.languages();\n var language = languages && languages[code];\n var primaryCode = code && code.split('-')[0];\n var primaryLang = languages && languages[primaryCode];\n\n var localizedString = defaultValue;\n\n if (language && language[string]) {\n localizedString = language[string];\n } else if (primaryLang && primaryLang[string]) {\n localizedString = primaryLang[string];\n }\n\n if (tokens) {\n localizedString = localizedString.replace(/\\{(\\d+)\\}/g, function (match, index) {\n var value = tokens[index - 1];\n var ret = value;\n\n if (typeof value === 'undefined') {\n ret = match;\n }\n\n return ret;\n });\n }\n\n return localizedString;\n };\n\n /**\n * Return the `Component`s DOM element. This is where children get inserted.\n * This will usually be the the same as the element returned in {@link Component#el}.\n *\n * @return {Element}\n * The content element for this `Component`.\n */\n\n\n Component.prototype.contentEl = function contentEl() {\n return this.contentEl_ || this.el_;\n };\n\n /**\n * Get this `Component`s ID\n *\n * @return {string}\n * The id of this `Component`\n */\n\n\n Component.prototype.id = function id() {\n return this.id_;\n };\n\n /**\n * Get the `Component`s name. The name gets used to reference the `Component`\n * and is set during registration.\n *\n * @return {string}\n * The name of this `Component`.\n */\n\n\n Component.prototype.name = function name() {\n return this.name_;\n };\n\n /**\n * Get an array of all child components\n *\n * @return {Array}\n * The children\n */\n\n\n Component.prototype.children = function children() {\n return this.children_;\n };\n\n /**\n * Returns the child `Component` with the given `id`.\n *\n * @param {string} id\n * The id of the child `Component` to get.\n *\n * @return {Component|undefined}\n * The child `Component` with the given `id` or undefined.\n */\n\n\n Component.prototype.getChildById = function getChildById(id) {\n return this.childIndex_[id];\n };\n\n /**\n * Returns the child `Component` with the given `name`.\n *\n * @param {string} name\n * The name of the child `Component` to get.\n *\n * @return {Component|undefined}\n * The child `Component` with the given `name` or undefined.\n */\n\n\n Component.prototype.getChild = function getChild(name) {\n if (!name) {\n return;\n }\n\n name = toTitleCase(name);\n\n return this.childNameIndex_[name];\n };\n\n /**\n * Add a child `Component` inside the current `Component`.\n *\n *\n * @param {string|Component} child\n * The name or instance of a child to add.\n *\n * @param {Object} [options={}]\n * The key/value store of options that will get passed to children of\n * the child.\n *\n * @param {number} [index=this.children_.length]\n * The index to attempt to add a child into.\n *\n * @return {Component}\n * The `Component` that gets added as a child. When using a string the\n * `Component` will get created by this process.\n */\n\n\n Component.prototype.addChild = function addChild(child) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var index = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.children_.length;\n\n var component = void 0;\n var componentName = void 0;\n\n // If child is a string, create component with options\n if (typeof child === 'string') {\n componentName = toTitleCase(child);\n\n var componentClassName = options.componentClass || componentName;\n\n // Set name through options\n options.name = componentName;\n\n // Create a new object & element for this controls set\n // If there's no .player_, this is a player\n var ComponentClass = Component.getComponent(componentClassName);\n\n if (!ComponentClass) {\n throw new Error('Component ' + componentClassName + ' does not exist');\n }\n\n // data stored directly on the videojs object may be\n // misidentified as a component to retain\n // backwards-compatibility with 4.x. check to make sure the\n // component class can be instantiated.\n if (typeof ComponentClass !== 'function') {\n return null;\n }\n\n component = new ComponentClass(this.player_ || this, options);\n\n // child is a component instance\n } else {\n component = child;\n }\n\n this.children_.splice(index, 0, component);\n\n if (typeof component.id === 'function') {\n this.childIndex_[component.id()] = component;\n }\n\n // If a name wasn't used to create the component, check if we can use the\n // name function of the component\n componentName = componentName || component.name && toTitleCase(component.name());\n\n if (componentName) {\n this.childNameIndex_[componentName] = component;\n }\n\n // Add the UI object's element to the container div (box)\n // Having an element is not required\n if (typeof component.el === 'function' && component.el()) {\n var childNodes = this.contentEl().children;\n var refNode = childNodes[index] || null;\n\n this.contentEl().insertBefore(component.el(), refNode);\n }\n\n // Return so it can stored on parent object if desired.\n return component;\n };\n\n /**\n * Remove a child `Component` from this `Component`s list of children. Also removes\n * the child `Component`s element from this `Component`s element.\n *\n * @param {Component} component\n * The child `Component` to remove.\n */\n\n\n Component.prototype.removeChild = function removeChild(component) {\n if (typeof component === 'string') {\n component = this.getChild(component);\n }\n\n if (!component || !this.children_) {\n return;\n }\n\n var childFound = false;\n\n for (var i = this.children_.length - 1; i >= 0; i--) {\n if (this.children_[i] === component) {\n childFound = true;\n this.children_.splice(i, 1);\n break;\n }\n }\n\n if (!childFound) {\n return;\n }\n\n this.childIndex_[component.id()] = null;\n this.childNameIndex_[component.name()] = null;\n\n var compEl = component.el();\n\n if (compEl && compEl.parentNode === this.contentEl()) {\n this.contentEl().removeChild(component.el());\n }\n };\n\n /**\n * Add and initialize default child `Component`s based upon options.\n */\n\n\n Component.prototype.initChildren = function initChildren() {\n var _this = this;\n\n var children = this.options_.children;\n\n if (children) {\n // `this` is `parent`\n var parentOptions = this.options_;\n\n var handleAdd = function handleAdd(child) {\n var name = child.name;\n var opts = child.opts;\n\n // Allow options for children to be set at the parent options\n // e.g. videojs(id, { controlBar: false });\n // instead of videojs(id, { children: { controlBar: false });\n if (parentOptions[name] !== undefined) {\n opts = parentOptions[name];\n }\n\n // Allow for disabling default components\n // e.g. options['children']['posterImage'] = false\n if (opts === false) {\n return;\n }\n\n // Allow options to be passed as a simple boolean if no configuration\n // is necessary.\n if (opts === true) {\n opts = {};\n }\n\n // We also want to pass the original player options\n // to each component as well so they don't need to\n // reach back into the player for options later.\n opts.playerOptions = _this.options_.playerOptions;\n\n // Create and add the child component.\n // Add a direct reference to the child by name on the parent instance.\n // If two of the same component are used, different names should be supplied\n // for each\n var newChild = _this.addChild(name, opts);\n\n if (newChild) {\n _this[name] = newChild;\n }\n };\n\n // Allow for an array of children details to passed in the options\n var workingChildren = void 0;\n var Tech = Component.getComponent('Tech');\n\n if (Array.isArray(children)) {\n workingChildren = children;\n } else {\n workingChildren = Object.keys(children);\n }\n\n workingChildren\n // children that are in this.options_ but also in workingChildren would\n // give us extra children we do not want. So, we want to filter them out.\n .concat(Object.keys(this.options_).filter(function (child) {\n return !workingChildren.some(function (wchild) {\n if (typeof wchild === 'string') {\n return child === wchild;\n }\n return child === wchild.name;\n });\n })).map(function (child) {\n var name = void 0;\n var opts = void 0;\n\n if (typeof child === 'string') {\n name = child;\n opts = children[name] || _this.options_[name] || {};\n } else {\n name = child.name;\n opts = child;\n }\n\n return { name: name, opts: opts };\n }).filter(function (child) {\n // we have to make sure that child.name isn't in the techOrder since\n // techs are registerd as Components but can't aren't compatible\n // See https://github.com/videojs/video.js/issues/2772\n var c = Component.getComponent(child.opts.componentClass || toTitleCase(child.name));\n\n return c && !Tech.isTech(c);\n }).forEach(handleAdd);\n }\n };\n\n /**\n * Builds the default DOM class name. Should be overriden by sub-components.\n *\n * @return {string}\n * The DOM class name for this object.\n *\n * @abstract\n */\n\n\n Component.prototype.buildCSSClass = function buildCSSClass() {\n // Child classes can include a function that does:\n // return 'CLASS NAME' + this._super();\n return '';\n };\n\n /**\n * Bind a listener to the component's ready state.\n * Different from event listeners in that if the ready event has already happened\n * it will trigger the function immediately.\n *\n * @return {Component}\n * Returns itself; method can be chained.\n */\n\n\n Component.prototype.ready = function ready(fn) {\n var sync = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;\n\n if (!fn) {\n return;\n }\n\n if (!this.isReady_) {\n this.readyQueue_ = this.readyQueue_ || [];\n this.readyQueue_.push(fn);\n return;\n }\n\n if (sync) {\n fn.call(this);\n } else {\n // Call the function asynchronously by default for consistency\n this.setTimeout(fn, 1);\n }\n };\n\n /**\n * Trigger all the ready listeners for this `Component`.\n *\n * @fires Component#ready\n */\n\n\n Component.prototype.triggerReady = function triggerReady() {\n this.isReady_ = true;\n\n // Ensure ready is triggered asynchronously\n this.setTimeout(function () {\n var readyQueue = this.readyQueue_;\n\n // Reset Ready Queue\n this.readyQueue_ = [];\n\n if (readyQueue && readyQueue.length > 0) {\n readyQueue.forEach(function (fn) {\n fn.call(this);\n }, this);\n }\n\n // Allow for using event listeners also\n /**\n * Triggered when a `Component` is ready.\n *\n * @event Component#ready\n * @type {EventTarget~Event}\n */\n this.trigger('ready');\n }, 1);\n };\n\n /**\n * Find a single DOM element matching a `selector`. This can be within the `Component`s\n * `contentEl()` or another custom context.\n *\n * @param {string} selector\n * A valid CSS selector, which will be passed to `querySelector`.\n *\n * @param {Element|string} [context=this.contentEl()]\n * A DOM element within which to query. Can also be a selector string in\n * which case the first matching element will get used as context. If\n * missing `this.contentEl()` gets used. If `this.contentEl()` returns\n * nothing it falls back to `document`.\n *\n * @return {Element|null}\n * the dom element that was found, or null\n *\n * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)\n */\n\n\n Component.prototype.$ = function $$$1(selector, context) {\n return $(selector, context || this.contentEl());\n };\n\n /**\n * Finds all DOM element matching a `selector`. This can be within the `Component`s\n * `contentEl()` or another custom context.\n *\n * @param {string} selector\n * A valid CSS selector, which will be passed to `querySelectorAll`.\n *\n * @param {Element|string} [context=this.contentEl()]\n * A DOM element within which to query. Can also be a selector string in\n * which case the first matching element will get used as context. If\n * missing `this.contentEl()` gets used. If `this.contentEl()` returns\n * nothing it falls back to `document`.\n *\n * @return {NodeList}\n * a list of dom elements that were found\n *\n * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)\n */\n\n\n Component.prototype.$$ = function $$$$1(selector, context) {\n return $$(selector, context || this.contentEl());\n };\n\n /**\n * Check if a component's element has a CSS class name.\n *\n * @param {string} classToCheck\n * CSS class name to check.\n *\n * @return {boolean}\n * - True if the `Component` has the class.\n * - False if the `Component` does not have the class`\n */\n\n\n Component.prototype.hasClass = function hasClass$$1(classToCheck) {\n return hasClass(this.el_, classToCheck);\n };\n\n /**\n * Add a CSS class name to the `Component`s element.\n *\n * @param {string} classToAdd\n * CSS class name to add\n */\n\n\n Component.prototype.addClass = function addClass$$1(classToAdd) {\n addClass(this.el_, classToAdd);\n };\n\n /**\n * Remove a CSS class name from the `Component`s element.\n *\n * @param {string} classToRemove\n * CSS class name to remove\n */\n\n\n Component.prototype.removeClass = function removeClass$$1(classToRemove) {\n removeClass(this.el_, classToRemove);\n };\n\n /**\n * Add or remove a CSS class name from the component's element.\n * - `classToToggle` gets added when {@link Component#hasClass} would return false.\n * - `classToToggle` gets removed when {@link Component#hasClass} would return true.\n *\n * @param {string} classToToggle\n * The class to add or remove based on (@link Component#hasClass}\n *\n * @param {boolean|Dom~predicate} [predicate]\n * An {@link Dom~predicate} function or a boolean\n */\n\n\n Component.prototype.toggleClass = function toggleClass$$1(classToToggle, predicate) {\n toggleClass(this.el_, classToToggle, predicate);\n };\n\n /**\n * Show the `Component`s element if it is hidden by removing the\n * 'vjs-hidden' class name from it.\n */\n\n\n Component.prototype.show = function show() {\n this.removeClass('vjs-hidden');\n };\n\n /**\n * Hide the `Component`s element if it is currently showing by adding the\n * 'vjs-hidden` class name to it.\n */\n\n\n Component.prototype.hide = function hide() {\n this.addClass('vjs-hidden');\n };\n\n /**\n * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'\n * class name to it. Used during fadeIn/fadeOut.\n *\n * @private\n */\n\n\n Component.prototype.lockShowing = function lockShowing() {\n this.addClass('vjs-lock-showing');\n };\n\n /**\n * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'\n * class name from it. Used during fadeIn/fadeOut.\n *\n * @private\n */\n\n\n Component.prototype.unlockShowing = function unlockShowing() {\n this.removeClass('vjs-lock-showing');\n };\n\n /**\n * Get the value of an attribute on the `Component`s element.\n *\n * @param {string} attribute\n * Name of the attribute to get the value from.\n *\n * @return {string|null}\n * - The value of the attribute that was asked for.\n * - Can be an empty string on some browsers if the attribute does not exist\n * or has no value\n * - Most browsers will return null if the attibute does not exist or has\n * no value.\n *\n * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}\n */\n\n\n Component.prototype.getAttribute = function getAttribute$$1(attribute) {\n return getAttribute(this.el_, attribute);\n };\n\n /**\n * Set the value of an attribute on the `Component`'s element\n *\n * @param {string} attribute\n * Name of the attribute to set.\n *\n * @param {string} value\n * Value to set the attribute to.\n *\n * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}\n */\n\n\n Component.prototype.setAttribute = function setAttribute$$1(attribute, value) {\n setAttribute(this.el_, attribute, value);\n };\n\n /**\n * Remove an attribute from the `Component`s element.\n *\n * @param {string} attribute\n * Name of the attribute to remove.\n *\n * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}\n */\n\n\n Component.prototype.removeAttribute = function removeAttribute$$1(attribute) {\n removeAttribute(this.el_, attribute);\n };\n\n /**\n * Get or set the width of the component based upon the CSS styles.\n * See {@link Component#dimension} for more detailed information.\n *\n * @param {number|string} [num]\n * The width that you want to set postfixed with '%', 'px' or nothing.\n *\n * @param {boolean} [skipListeners]\n * Skip the componentresize event trigger\n *\n * @return {number|string}\n * The width when getting, zero if there is no width. Can be a string\n * postpixed with '%' or 'px'.\n */\n\n\n Component.prototype.width = function width(num, skipListeners) {\n return this.dimension('width', num, skipListeners);\n };\n\n /**\n * Get or set the height of the component based upon the CSS styles.\n * See {@link Component#dimension} for more detailed information.\n *\n * @param {number|string} [num]\n * The height that you want to set postfixed with '%', 'px' or nothing.\n *\n * @param {boolean} [skipListeners]\n * Skip the componentresize event trigger\n *\n * @return {number|string}\n * The width when getting, zero if there is no width. Can be a string\n * postpixed with '%' or 'px'.\n */\n\n\n Component.prototype.height = function height(num, skipListeners) {\n return this.dimension('height', num, skipListeners);\n };\n\n /**\n * Set both the width and height of the `Component` element at the same time.\n *\n * @param {number|string} width\n * Width to set the `Component`s element to.\n *\n * @param {number|string} height\n * Height to set the `Component`s element to.\n */\n\n\n Component.prototype.dimensions = function dimensions(width, height) {\n // Skip componentresize listeners on width for optimization\n this.width(width, true);\n this.height(height);\n };\n\n /**\n * Get or set width or height of the `Component` element. This is the shared code\n * for the {@link Component#width} and {@link Component#height}.\n *\n * Things to know:\n * - If the width or height in an number this will return the number postfixed with 'px'.\n * - If the width/height is a percent this will return the percent postfixed with '%'\n * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function\n * defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.\n * See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}\n * for more information\n * - If you want the computed style of the component, use {@link Component#currentWidth}\n * and {@link {Component#currentHeight}\n *\n * @fires Component#componentresize\n *\n * @param {string} widthOrHeight\n 8 'width' or 'height'\n *\n * @param {number|string} [num]\n 8 New dimension\n *\n * @param {boolean} [skipListeners]\n * Skip componentresize event trigger\n *\n * @return {number}\n * The dimension when getting or 0 if unset\n */\n\n\n Component.prototype.dimension = function dimension(widthOrHeight, num, skipListeners) {\n if (num !== undefined) {\n // Set to zero if null or literally NaN (NaN !== NaN)\n if (num === null || num !== num) {\n num = 0;\n }\n\n // Check if using css width/height (% or px) and adjust\n if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {\n this.el_.style[widthOrHeight] = num;\n } else if (num === 'auto') {\n this.el_.style[widthOrHeight] = '';\n } else {\n this.el_.style[widthOrHeight] = num + 'px';\n }\n\n // skipListeners allows us to avoid triggering the resize event when setting both width and height\n if (!skipListeners) {\n /**\n * Triggered when a component is resized.\n *\n * @event Component#componentresize\n * @type {EventTarget~Event}\n */\n this.trigger('componentresize');\n }\n\n return;\n }\n\n // Not setting a value, so getting it\n // Make sure element exists\n if (!this.el_) {\n return 0;\n }\n\n // Get dimension value from style\n var val = this.el_.style[widthOrHeight];\n var pxIndex = val.indexOf('px');\n\n if (pxIndex !== -1) {\n // Return the pixel value with no 'px'\n return parseInt(val.slice(0, pxIndex), 10);\n }\n\n // No px so using % or no style was set, so falling back to offsetWidth/height\n // If component has display:none, offset will return 0\n // TODO: handle display:none and no dimension style using px\n return parseInt(this.el_['offset' + toTitleCase(widthOrHeight)], 10);\n };\n\n /**\n * Get the width or the height of the `Component` elements computed style. Uses\n * `window.getComputedStyle`.\n *\n * @param {string} widthOrHeight\n * A string containing 'width' or 'height'. Whichever one you want to get.\n *\n * @return {number}\n * The dimension that gets asked for or 0 if nothing was set\n * for that dimension.\n */\n\n\n Component.prototype.currentDimension = function currentDimension(widthOrHeight) {\n var computedWidthOrHeight = 0;\n\n if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {\n throw new Error('currentDimension only accepts width or height value');\n }\n\n if (typeof window.getComputedStyle === 'function') {\n var computedStyle = window.getComputedStyle(this.el_);\n\n computedWidthOrHeight = computedStyle.getPropertyValue(widthOrHeight) || computedStyle[widthOrHeight];\n }\n\n // remove 'px' from variable and parse as integer\n computedWidthOrHeight = parseFloat(computedWidthOrHeight);\n\n // if the computed value is still 0, it's possible that the browser is lying\n // and we want to check the offset values.\n // This code also runs on IE8 and wherever getComputedStyle doesn't exist.\n if (computedWidthOrHeight === 0) {\n var rule = 'offset' + toTitleCase(widthOrHeight);\n\n computedWidthOrHeight = this.el_[rule];\n }\n\n return computedWidthOrHeight;\n };\n\n /**\n * An object that contains width and height values of the `Component`s\n * computed style. Uses `window.getComputedStyle`.\n *\n * @typedef {Object} Component~DimensionObject\n *\n * @property {number} width\n * The width of the `Component`s computed style.\n *\n * @property {number} height\n * The height of the `Component`s computed style.\n */\n\n /**\n * Get an object that contains width and height values of the `Component`s\n * computed style.\n *\n * @return {Component~DimensionObject}\n * The dimensions of the components element\n */\n\n\n Component.prototype.currentDimensions = function currentDimensions() {\n return {\n width: this.currentDimension('width'),\n height: this.currentDimension('height')\n };\n };\n\n /**\n * Get the width of the `Component`s computed style. Uses `window.getComputedStyle`.\n *\n * @return {number} width\n * The width of the `Component`s computed style.\n */\n\n\n Component.prototype.currentWidth = function currentWidth() {\n return this.currentDimension('width');\n };\n\n /**\n * Get the height of the `Component`s computed style. Uses `window.getComputedStyle`.\n *\n * @return {number} height\n * The height of the `Component`s computed style.\n */\n\n\n Component.prototype.currentHeight = function currentHeight() {\n return this.currentDimension('height');\n };\n\n /**\n * Set the focus to this component\n */\n\n\n Component.prototype.focus = function focus() {\n this.el_.focus();\n };\n\n /**\n * Remove the focus from this component\n */\n\n\n Component.prototype.blur = function blur() {\n this.el_.blur();\n };\n\n /**\n * Emit a 'tap' events when touch event support gets detected. This gets used to\n * support toggling the controls through a tap on the video. They get enabled\n * because every sub-component would have extra overhead otherwise.\n *\n * @private\n * @fires Component#tap\n * @listens Component#touchstart\n * @listens Component#touchmove\n * @listens Component#touchleave\n * @listens Component#touchcancel\n * @listens Component#touchend\n */\n\n\n Component.prototype.emitTapEvents = function emitTapEvents() {\n // Track the start time so we can determine how long the touch lasted\n var touchStart = 0;\n var firstTouch = null;\n\n // Maximum movement allowed during a touch event to still be considered a tap\n // Other popular libs use anywhere from 2 (hammer.js) to 15,\n // so 10 seems like a nice, round number.\n var tapMovementThreshold = 10;\n\n // The maximum length a touch can be while still being considered a tap\n var touchTimeThreshold = 200;\n\n var couldBeTap = void 0;\n\n this.on('touchstart', function (event) {\n // If more than one finger, don't consider treating this as a click\n if (event.touches.length === 1) {\n // Copy pageX/pageY from the object\n firstTouch = {\n pageX: event.touches[0].pageX,\n pageY: event.touches[0].pageY\n };\n // Record start time so we can detect a tap vs. \"touch and hold\"\n touchStart = new Date().getTime();\n // Reset couldBeTap tracking\n couldBeTap = true;\n }\n });\n\n this.on('touchmove', function (event) {\n // If more than one finger, don't consider treating this as a click\n if (event.touches.length > 1) {\n couldBeTap = false;\n } else if (firstTouch) {\n // Some devices will throw touchmoves for all but the slightest of taps.\n // So, if we moved only a small distance, this could still be a tap\n var xdiff = event.touches[0].pageX - firstTouch.pageX;\n var ydiff = event.touches[0].pageY - firstTouch.pageY;\n var touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);\n\n if (touchDistance > tapMovementThreshold) {\n couldBeTap = false;\n }\n }\n });\n\n var noTap = function noTap() {\n couldBeTap = false;\n };\n\n // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s\n this.on('touchleave', noTap);\n this.on('touchcancel', noTap);\n\n // When the touch ends, measure how long it took and trigger the appropriate\n // event\n this.on('touchend', function (event) {\n firstTouch = null;\n // Proceed only if the touchmove/leave/cancel event didn't happen\n if (couldBeTap === true) {\n // Measure how long the touch lasted\n var touchTime = new Date().getTime() - touchStart;\n\n // Make sure the touch was less than the threshold to be considered a tap\n if (touchTime < touchTimeThreshold) {\n // Don't let browser turn this into a click\n event.preventDefault();\n /**\n * Triggered when a `Component` is tapped.\n *\n * @event Component#tap\n * @type {EventTarget~Event}\n */\n this.trigger('tap');\n // It may be good to copy the touchend event object and change the\n // type to tap, if the other event properties aren't exact after\n // Events.fixEvent runs (e.g. event.target)\n }\n }\n });\n };\n\n /**\n * This function reports user activity whenever touch events happen. This can get\n * turned off by any sub-components that wants touch events to act another way.\n *\n * Report user touch activity when touch events occur. User activity gets used to\n * determine when controls should show/hide. It is simple when it comes to mouse\n * events, because any mouse event should show the controls. So we capture mouse\n * events that bubble up to the player and report activity when that happens.\n * With touch events it isn't as easy as `touchstart` and `touchend` toggle player\n * controls. So touch events can't help us at the player level either.\n *\n * User activity gets checked asynchronously. So what could happen is a tap event\n * on the video turns the controls off. Then the `touchend` event bubbles up to\n * the player. Which, if it reported user activity, would turn the controls right\n * back on. We also don't want to completely block touch events from bubbling up.\n * Furthermore a `touchmove` event and anything other than a tap, should not turn\n * controls back on.\n *\n * @listens Component#touchstart\n * @listens Component#touchmove\n * @listens Component#touchend\n * @listens Component#touchcancel\n */\n\n\n Component.prototype.enableTouchActivity = function enableTouchActivity() {\n // Don't continue if the root player doesn't support reporting user activity\n if (!this.player() || !this.player().reportUserActivity) {\n return;\n }\n\n // listener for reporting that the user is active\n var report = bind(this.player(), this.player().reportUserActivity);\n\n var touchHolding = void 0;\n\n this.on('touchstart', function () {\n report();\n // For as long as the they are touching the device or have their mouse down,\n // we consider them active even if they're not moving their finger or mouse.\n // So we want to continue to update that they are active\n this.clearInterval(touchHolding);\n // report at the same interval as activityCheck\n touchHolding = this.setInterval(report, 250);\n });\n\n var touchEnd = function touchEnd(event) {\n report();\n // stop the interval that maintains activity if the touch is holding\n this.clearInterval(touchHolding);\n };\n\n this.on('touchmove', report);\n this.on('touchend', touchEnd);\n this.on('touchcancel', touchEnd);\n };\n\n /**\n * A callback that has no parameters and is bound into `Component`s context.\n *\n * @callback Component~GenericCallback\n * @this Component\n */\n\n /**\n * Creates a function that runs after an `x` millisecond timeout. This function is a\n * wrapper around `window.setTimeout`. There are a few reasons to use this one\n * instead though:\n * 1. It gets cleared via {@link Component#clearTimeout} when\n * {@link Component#dispose} gets called.\n * 2. The function callback will gets turned into a {@link Component~GenericCallback}\n *\n * > Note: You can't use `window.clearTimeout` on the id returned by this function. This\n * will cause its dispose listener not to get cleaned up! Please use\n * {@link Component#clearTimeout} or {@link Component#dispose} instead.\n *\n * @param {Component~GenericCallback} fn\n * The function that will be run after `timeout`.\n *\n * @param {number} timeout\n * Timeout in milliseconds to delay before executing the specified function.\n *\n * @return {number}\n * Returns a timeout ID that gets used to identify the timeout. It can also\n * get used in {@link Component#clearTimeout} to clear the timeout that\n * was set.\n *\n * @listens Component#dispose\n * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}\n */\n\n\n Component.prototype.setTimeout = function setTimeout(fn, timeout) {\n var _this2 = this;\n\n // declare as variables so they are properly available in timeout function\n // eslint-disable-next-line\n var timeoutId, disposeFn;\n\n fn = bind(this, fn);\n\n timeoutId = window.setTimeout(function () {\n _this2.off('dispose', disposeFn);\n fn();\n }, timeout);\n\n disposeFn = function disposeFn() {\n return _this2.clearTimeout(timeoutId);\n };\n\n disposeFn.guid = 'vjs-timeout-' + timeoutId;\n\n this.on('dispose', disposeFn);\n\n return timeoutId;\n };\n\n /**\n * Clears a timeout that gets created via `window.setTimeout` or\n * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}\n * use this function instead of `window.clearTimout`. If you don't your dispose\n * listener will not get cleaned up until {@link Component#dispose}!\n *\n * @param {number} timeoutId\n * The id of the timeout to clear. The return value of\n * {@link Component#setTimeout} or `window.setTimeout`.\n *\n * @return {number}\n * Returns the timeout id that was cleared.\n *\n * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}\n */\n\n\n Component.prototype.clearTimeout = function clearTimeout(timeoutId) {\n window.clearTimeout(timeoutId);\n\n var disposeFn = function disposeFn() {};\n\n disposeFn.guid = 'vjs-timeout-' + timeoutId;\n\n this.off('dispose', disposeFn);\n\n return timeoutId;\n };\n\n /**\n * Creates a function that gets run every `x` milliseconds. This function is a wrapper\n * around `window.setInterval`. There are a few reasons to use this one instead though.\n * 1. It gets cleared via {@link Component#clearInterval} when\n * {@link Component#dispose} gets called.\n * 2. The function callback will be a {@link Component~GenericCallback}\n *\n * @param {Component~GenericCallback} fn\n * The function to run every `x` seconds.\n *\n * @param {number} interval\n * Execute the specified function every `x` milliseconds.\n *\n * @return {number}\n * Returns an id that can be used to identify the interval. It can also be be used in\n * {@link Component#clearInterval} to clear the interval.\n *\n * @listens Component#dispose\n * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}\n */\n\n\n Component.prototype.setInterval = function setInterval(fn, interval) {\n var _this3 = this;\n\n fn = bind(this, fn);\n\n var intervalId = window.setInterval(fn, interval);\n\n var disposeFn = function disposeFn() {\n return _this3.clearInterval(intervalId);\n };\n\n disposeFn.guid = 'vjs-interval-' + intervalId;\n\n this.on('dispose', disposeFn);\n\n return intervalId;\n };\n\n /**\n * Clears an interval that gets created via `window.setInterval` or\n * {@link Component#setInterval}. If you set an inteval via {@link Component#setInterval}\n * use this function instead of `window.clearInterval`. If you don't your dispose\n * listener will not get cleaned up until {@link Component#dispose}!\n *\n * @param {number} intervalId\n * The id of the interval to clear. The return value of\n * {@link Component#setInterval} or `window.setInterval`.\n *\n * @return {number}\n * Returns the interval id that was cleared.\n *\n * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}\n */\n\n\n Component.prototype.clearInterval = function clearInterval(intervalId) {\n window.clearInterval(intervalId);\n\n var disposeFn = function disposeFn() {};\n\n disposeFn.guid = 'vjs-interval-' + intervalId;\n\n this.off('dispose', disposeFn);\n\n return intervalId;\n };\n\n /**\n * Queues up a callback to be passed to requestAnimationFrame (rAF), but\n * with a few extra bonuses:\n *\n * - Supports browsers that do not support rAF by falling back to\n * {@link Component#setTimeout}.\n *\n * - The callback is turned into a {@link Component~GenericCallback} (i.e.\n * bound to the component).\n *\n * - Automatic cancellation of the rAF callback is handled if the component\n * is disposed before it is called.\n *\n * @param {Component~GenericCallback} fn\n * A function that will be bound to this component and executed just\n * before the browser's next repaint.\n *\n * @return {number}\n * Returns an rAF ID that gets used to identify the timeout. It can\n * also be used in {@link Component#cancelAnimationFrame} to cancel\n * the animation frame callback.\n *\n * @listens Component#dispose\n * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}\n */\n\n\n Component.prototype.requestAnimationFrame = function requestAnimationFrame(fn) {\n var _this4 = this;\n\n // declare as variables so they are properly available in rAF function\n // eslint-disable-next-line\n var id, disposeFn;\n\n if (this.supportsRaf_) {\n fn = bind(this, fn);\n\n id = window.requestAnimationFrame(function () {\n _this4.off('dispose', disposeFn);\n fn();\n });\n\n disposeFn = function disposeFn() {\n return _this4.cancelAnimationFrame(id);\n };\n\n disposeFn.guid = 'vjs-raf-' + id;\n this.on('dispose', disposeFn);\n\n return id;\n }\n\n // Fall back to using a timer.\n return this.setTimeout(fn, 1000 / 60);\n };\n\n /**\n * Cancels a queued callback passed to {@link Component#requestAnimationFrame}\n * (rAF).\n *\n * If you queue an rAF callback via {@link Component#requestAnimationFrame},\n * use this function instead of `window.cancelAnimationFrame`. If you don't,\n * your dispose listener will not get cleaned up until {@link Component#dispose}!\n *\n * @param {number} id\n * The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.\n *\n * @return {number}\n * Returns the rAF ID that was cleared.\n *\n * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}\n */\n\n\n Component.prototype.cancelAnimationFrame = function cancelAnimationFrame(id) {\n if (this.supportsRaf_) {\n window.cancelAnimationFrame(id);\n\n var disposeFn = function disposeFn() {};\n\n disposeFn.guid = 'vjs-raf-' + id;\n\n this.off('dispose', disposeFn);\n\n return id;\n }\n\n // Fall back to using a timer.\n return this.clearTimeout(id);\n };\n\n /**\n * Register a `Component` with `videojs` given the name and the component.\n *\n * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s\n * should be registered using {@link Tech.registerTech} or\n * {@link videojs:videojs.registerTech}.\n *\n * > NOTE: This function can also be seen on videojs as\n * {@link videojs:videojs.registerComponent}.\n *\n * @param {string} name\n * The name of the `Component` to register.\n *\n * @param {Component} ComponentToRegister\n * The `Component` class to register.\n *\n * @return {Component}\n * The `Component` that was registered.\n */\n\n\n Component.registerComponent = function registerComponent(name, ComponentToRegister) {\n if (typeof name !== 'string' || !name) {\n throw new Error('Illegal component name, \"' + name + '\"; must be a non-empty string.');\n }\n\n var Tech = Component.getComponent('Tech');\n\n // We need to make sure this check is only done if Tech has been registered.\n var isTech = Tech && Tech.isTech(ComponentToRegister);\n var isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype);\n\n if (isTech || !isComp) {\n var reason = void 0;\n\n if (isTech) {\n reason = 'techs must be registered using Tech.registerTech()';\n } else {\n reason = 'must be a Component subclass';\n }\n\n throw new Error('Illegal component, \"' + name + '\"; ' + reason + '.');\n }\n\n name = toTitleCase(name);\n\n if (!Component.components_) {\n Component.components_ = {};\n }\n\n var Player = Component.getComponent('Player');\n\n if (name === 'Player' && Player && Player.players) {\n var players = Player.players;\n var playerNames = Object.keys(players);\n\n // If we have players that were disposed, then their name will still be\n // in Players.players. So, we must loop through and verify that the value\n // for each item is not null. This allows registration of the Player component\n // after all players have been disposed or before any were created.\n if (players && playerNames.length > 0 && playerNames.map(function (pname) {\n return players[pname];\n }).every(Boolean)) {\n throw new Error('Can not register Player component after player has been created.');\n }\n }\n\n Component.components_[name] = ComponentToRegister;\n\n return ComponentToRegister;\n };\n\n /**\n * Get a `Component` based on the name it was registered with.\n *\n * @param {string} name\n * The Name of the component to get.\n *\n * @return {Component}\n * The `Component` that got registered under the given name.\n *\n * @deprecated In `videojs` 6 this will not return `Component`s that were not\n * registered using {@link Component.registerComponent}. Currently we\n * check the global `videojs` object for a `Component` name and\n * return that if it exists.\n */\n\n\n Component.getComponent = function getComponent(name) {\n if (!name) {\n return;\n }\n\n name = toTitleCase(name);\n\n if (Component.components_ && Component.components_[name]) {\n return Component.components_[name];\n }\n };\n\n return Component;\n}();\n\n/**\n * Whether or not this component supports `requestAnimationFrame`.\n *\n * This is exposed primarily for testing purposes.\n *\n * @private\n * @type {Boolean}\n */\n\n\nComponent.prototype.supportsRaf_ = typeof window.requestAnimationFrame === 'function' && typeof window.cancelAnimationFrame === 'function';\n\nComponent.registerComponent('Component', Component);\n\n/**\n * @file time-ranges.js\n * @module time-ranges\n */\n\n/**\n * Returns the time for the specified index at the start or end\n * of a TimeRange object.\n *\n * @function time-ranges:indexFunction\n *\n * @param {number} [index=0]\n * The range number to return the time for.\n *\n * @return {number}\n * The time that offset at the specified index.\n *\n * @depricated index must be set to a value, in the future this will throw an error.\n */\n\n/**\n * An object that contains ranges of time for various reasons.\n *\n * @typedef {Object} TimeRange\n *\n * @property {number} length\n * The number of time ranges represented by this Object\n *\n * @property {time-ranges:indexFunction} start\n * Returns the time offset at which a specified time range begins.\n *\n * @property {time-ranges:indexFunction} end\n * Returns the time offset at which a specified time range ends.\n *\n * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges\n */\n\n/**\n * Check if any of the time ranges are over the maximum index.\n *\n * @param {string} fnName\n * The function name to use for logging\n *\n * @param {number} index\n * The index to check\n *\n * @param {number} maxIndex\n * The maximum possible index\n *\n * @throws {Error} if the timeRanges provided are over the maxIndex\n */\nfunction rangeCheck(fnName, index, maxIndex) {\n if (typeof index !== 'number' || index < 0 || index > maxIndex) {\n throw new Error('Failed to execute \\'' + fnName + '\\' on \\'TimeRanges\\': The index provided (' + index + ') is non-numeric or out of bounds (0-' + maxIndex + ').');\n }\n}\n\n/**\n * Get the time for the specified index at the start or end\n * of a TimeRange object.\n *\n * @param {string} fnName\n * The function name to use for logging\n *\n * @param {string} valueIndex\n * The proprety that should be used to get the time. should be 'start' or 'end'\n *\n * @param {Array} ranges\n * An array of time ranges\n *\n * @param {Array} [rangeIndex=0]\n * The index to start the search at\n *\n * @return {number}\n * The time that offset at the specified index.\n *\n *\n * @depricated rangeIndex must be set to a value, in the future this will throw an error.\n * @throws {Error} if rangeIndex is more than the length of ranges\n */\nfunction getRange(fnName, valueIndex, ranges, rangeIndex) {\n rangeCheck(fnName, rangeIndex, ranges.length - 1);\n return ranges[rangeIndex][valueIndex];\n}\n\n/**\n * Create a time range object given ranges of time.\n *\n * @param {Array} [ranges]\n * An array of time ranges.\n */\nfunction createTimeRangesObj(ranges) {\n if (ranges === undefined || ranges.length === 0) {\n return {\n length: 0,\n start: function start() {\n throw new Error('This TimeRanges object is empty');\n },\n end: function end() {\n throw new Error('This TimeRanges object is empty');\n }\n };\n }\n return {\n length: ranges.length,\n start: getRange.bind(null, 'start', 0, ranges),\n end: getRange.bind(null, 'end', 1, ranges)\n };\n}\n\n/**\n * Should create a fake `TimeRange` object which mimics an HTML5 time range instance.\n *\n * @param {number|Array} start\n * The start of a single range or an array of ranges\n *\n * @param {number} end\n * The end of a single range.\n *\n * @private\n */\nfunction createTimeRanges(start, end) {\n if (Array.isArray(start)) {\n return createTimeRangesObj(start);\n } else if (start === undefined || end === undefined) {\n return createTimeRangesObj();\n }\n return createTimeRangesObj([[start, end]]);\n}\n\n/**\n * @file buffer.js\n * @module buffer\n */\n/**\n * Compute the percentage of the media that has been buffered.\n *\n * @param {TimeRange} buffered\n * The current `TimeRange` object representing buffered time ranges\n *\n * @param {number} duration\n * Total duration of the media\n *\n * @return {number}\n * Percent buffered of the total duration in decimal form.\n */\nfunction bufferedPercent(buffered, duration) {\n var bufferedDuration = 0;\n var start = void 0;\n var end = void 0;\n\n if (!duration) {\n return 0;\n }\n\n if (!buffered || !buffered.length) {\n buffered = createTimeRanges(0, 0);\n }\n\n for (var i = 0; i < buffered.length; i++) {\n start = buffered.start(i);\n end = buffered.end(i);\n\n // buffered end can be bigger than duration by a very small fraction\n if (end > duration) {\n end = duration;\n }\n\n bufferedDuration += end - start;\n }\n\n return bufferedDuration / duration;\n}\n\n/**\n * @file fullscreen-api.js\n * @module fullscreen-api\n * @private\n */\n/**\n * Store the browser-specific methods for the fullscreen API.\n *\n * @type {Object}\n * @see [Specification]{@link https://fullscreen.spec.whatwg.org}\n * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}\n */\nvar FullscreenApi = {};\n\n// browser API methods\nvar apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror'],\n// WebKit\n['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror'],\n// Old WebKit (Safari 5.1)\n['webkitRequestFullScreen', 'webkitCancelFullScreen', 'webkitCurrentFullScreenElement', 'webkitCancelFullScreen', 'webkitfullscreenchange', 'webkitfullscreenerror'],\n// Mozilla\n['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror'],\n// Microsoft\n['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError']];\n\nvar specApi = apiMap[0];\nvar browserApi = void 0;\n\n// determine the supported set of functions\nfor (var i = 0; i < apiMap.length; i++) {\n // check for exitFullscreen function\n if (apiMap[i][1] in document) {\n browserApi = apiMap[i];\n break;\n }\n}\n\n// map the browser API names to the spec API names\nif (browserApi) {\n for (var _i = 0; _i < browserApi.length; _i++) {\n FullscreenApi[specApi[_i]] = browserApi[_i];\n }\n}\n\n/**\n * @file media-error.js\n */\n/**\n * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.\n *\n * @param {number|string|Object|MediaError} value\n * This can be of multiple types:\n * - number: should be a standard error code\n * - string: an error message (the code will be 0)\n * - Object: arbitrary properties\n * - `MediaError` (native): used to populate a video.js `MediaError` object\n * - `MediaError` (video.js): will return itself if it's already a\n * video.js `MediaError` object.\n *\n * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}\n * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}\n *\n * @class MediaError\n */\nfunction MediaError(value) {\n\n // Allow redundant calls to this constructor to avoid having `instanceof`\n // checks peppered around the code.\n if (value instanceof MediaError) {\n return value;\n }\n\n if (typeof value === 'number') {\n this.code = value;\n } else if (typeof value === 'string') {\n // default code is zero, so this is a custom error\n this.message = value;\n } else if (isObject(value)) {\n\n // We assign the `code` property manually because native `MediaError` objects\n // do not expose it as an own/enumerable property of the object.\n if (typeof value.code === 'number') {\n this.code = value.code;\n }\n\n assign(this, value);\n }\n\n if (!this.message) {\n this.message = MediaError.defaultMessages[this.code] || '';\n }\n}\n\n/**\n * The error code that refers two one of the defined `MediaError` types\n *\n * @type {Number}\n */\nMediaError.prototype.code = 0;\n\n/**\n * An optional message that to show with the error. Message is not part of the HTML5\n * video spec but allows for more informative custom errors.\n *\n * @type {String}\n */\nMediaError.prototype.message = '';\n\n/**\n * An optional status code that can be set by plugins to allow even more detail about\n * the error. For example a plugin might provide a specific HTTP status code and an\n * error message for that code. Then when the plugin gets that error this class will\n * know how to display an error message for it. This allows a custom message to show\n * up on the `Player` error overlay.\n *\n * @type {Array}\n */\nMediaError.prototype.status = null;\n\n/**\n * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the\n * specification listed under {@link MediaError} for more information.\n *\n * @enum {array}\n * @readonly\n * @property {string} 0 - MEDIA_ERR_CUSTOM\n * @property {string} 1 - MEDIA_ERR_CUSTOM\n * @property {string} 2 - MEDIA_ERR_ABORTED\n * @property {string} 3 - MEDIA_ERR_NETWORK\n * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED\n * @property {string} 5 - MEDIA_ERR_ENCRYPTED\n */\nMediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];\n\n/**\n * The default `MediaError` messages based on the {@link MediaError.errorTypes}.\n *\n * @type {Array}\n * @constant\n */\nMediaError.defaultMessages = {\n 1: 'You aborted the media playback',\n 2: 'A network error caused the media download to fail part-way.',\n 3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',\n 4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',\n 5: 'The media is encrypted and we do not have the keys to decrypt it.'\n};\n\n// Add types as properties on MediaError\n// e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;\nfor (var errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {\n MediaError[MediaError.errorTypes[errNum]] = errNum;\n // values should be accessible on both the class and instance\n MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;\n}\n\n/**\n * Returns whether an object is `Promise`-like (i.e. has a `then` method).\n *\n * @param {Object} value\n * An object that may or may not be `Promise`-like.\n *\n * @return {Boolean}\n * Whether or not the object is `Promise`-like.\n */\nfunction isPromise(value) {\n return value !== undefined && value !== null && typeof value.then === 'function';\n}\n\n/**\n * Silence a Promise-like object.\n *\n * This is useful for avoiding non-harmful, but potentially confusing \"uncaught\n * play promise\" rejection error messages.\n *\n * @param {Object} value\n * An object that may or may not be `Promise`-like.\n */\nfunction silencePromise(value) {\n if (isPromise(value)) {\n value.then(null, function (e) {});\n }\n}\n\n/**\n * @file text-track-list-converter.js Utilities for capturing text track state and\n * re-creating tracks based on a capture.\n *\n * @module text-track-list-converter\n */\n\n/**\n * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that\n * represents the {@link TextTrack}'s state.\n *\n * @param {TextTrack} track\n * The text track to query.\n *\n * @return {Object}\n * A serializable javascript representation of the TextTrack.\n * @private\n */\nvar trackToJson_ = function trackToJson_(track) {\n var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) {\n\n if (track[prop]) {\n acc[prop] = track[prop];\n }\n\n return acc;\n }, {\n cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {\n return {\n startTime: cue.startTime,\n endTime: cue.endTime,\n text: cue.text,\n id: cue.id\n };\n })\n });\n\n return ret;\n};\n\n/**\n * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the\n * state of all {@link TextTrack}s currently configured. The return array is compatible with\n * {@link text-track-list-converter:jsonToTextTracks}.\n *\n * @param {Tech} tech\n * The tech object to query\n *\n * @return {Array}\n * A serializable javascript representation of the {@link Tech}s\n * {@link TextTrackList}.\n */\nvar textTracksToJson = function textTracksToJson(tech) {\n\n var trackEls = tech.$$('track');\n\n var trackObjs = Array.prototype.map.call(trackEls, function (t) {\n return t.track;\n });\n var tracks = Array.prototype.map.call(trackEls, function (trackEl) {\n var json = trackToJson_(trackEl.track);\n\n if (trackEl.src) {\n json.src = trackEl.src;\n }\n return json;\n });\n\n return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {\n return trackObjs.indexOf(track) === -1;\n }).map(trackToJson_));\n};\n\n/**\n * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript\n * object {@link TextTrack} representations.\n *\n * @param {Array} json\n * An array of `TextTrack` representation objects, like those that would be\n * produced by `textTracksToJson`.\n *\n * @param {Tech} tech\n * The `Tech` to create the `TextTrack`s on.\n */\nvar jsonToTextTracks = function jsonToTextTracks(json, tech) {\n json.forEach(function (track) {\n var addedTrack = tech.addRemoteTextTrack(track).track;\n\n if (!track.src && track.cues) {\n track.cues.forEach(function (cue) {\n return addedTrack.addCue(cue);\n });\n }\n });\n\n return tech.textTracks();\n};\n\nvar textTrackConverter = { textTracksToJson: textTracksToJson, jsonToTextTracks: jsonToTextTracks, trackToJson_: trackToJson_ };\n\n/**\n * @file modal-dialog.js\n */\nvar MODAL_CLASS_NAME = 'vjs-modal-dialog';\nvar ESC = 27;\n\n/**\n * The `ModalDialog` displays over the video and its controls, which blocks\n * interaction with the player until it is closed.\n *\n * Modal dialogs include a \"Close\" button and will close when that button\n * is activated - or when ESC is pressed anywhere.\n *\n * @extends Component\n */\n\nvar ModalDialog = function (_Component) {\n inherits(ModalDialog, _Component);\n\n /**\n * Create an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n *\n * @param {Mixed} [options.content=undefined]\n * Provide customized content for this modal.\n *\n * @param {string} [options.description]\n * A text description for the modal, primarily for accessibility.\n *\n * @param {boolean} [options.fillAlways=false]\n * Normally, modals are automatically filled only the first time\n * they open. This tells the modal to refresh its content\n * every time it opens.\n *\n * @param {string} [options.label]\n * A text label for the modal, primarily for accessibility.\n *\n * @param {boolean} [options.temporary=true]\n * If `true`, the modal can only be opened once; it will be\n * disposed as soon as it's closed.\n *\n * @param {boolean} [options.uncloseable=false]\n * If `true`, the user will not be able to close the modal\n * through the UI in the normal ways. Programmatic closing is\n * still possible.\n */\n function ModalDialog(player, options) {\n classCallCheck(this, ModalDialog);\n\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options));\n\n _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false;\n\n _this.closeable(!_this.options_.uncloseable);\n _this.content(_this.options_.content);\n\n // Make sure the contentEl is defined AFTER any children are initialized\n // because we only want the contents of the modal in the contentEl\n // (not the UI elements like the close button).\n _this.contentEl_ = createEl('div', {\n className: MODAL_CLASS_NAME + '-content'\n }, {\n role: 'document'\n });\n\n _this.descEl_ = createEl('p', {\n className: MODAL_CLASS_NAME + '-description vjs-control-text',\n id: _this.el().getAttribute('aria-describedby')\n });\n\n textContent(_this.descEl_, _this.description());\n _this.el_.appendChild(_this.descEl_);\n _this.el_.appendChild(_this.contentEl_);\n return _this;\n }\n\n /**\n * Create the `ModalDialog`'s DOM element\n *\n * @return {Element}\n * The DOM element that gets created.\n */\n\n\n ModalDialog.prototype.createEl = function createEl$$1() {\n return _Component.prototype.createEl.call(this, 'div', {\n className: this.buildCSSClass(),\n tabIndex: -1\n }, {\n 'aria-describedby': this.id() + '_description',\n 'aria-hidden': 'true',\n 'aria-label': this.label(),\n 'role': 'dialog'\n });\n };\n\n ModalDialog.prototype.dispose = function dispose() {\n this.contentEl_ = null;\n this.descEl_ = null;\n this.previouslyActiveEl_ = null;\n\n _Component.prototype.dispose.call(this);\n };\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n ModalDialog.prototype.buildCSSClass = function buildCSSClass() {\n return MODAL_CLASS_NAME + ' vjs-hidden ' + _Component.prototype.buildCSSClass.call(this);\n };\n\n /**\n * Handles `keydown` events on the document, looking for ESC, which closes\n * the modal.\n *\n * @param {EventTarget~Event} e\n * The keypress that triggered this event.\n *\n * @listens keydown\n */\n\n\n ModalDialog.prototype.handleKeyPress = function handleKeyPress(e) {\n if (e.which === ESC && this.closeable()) {\n this.close();\n }\n };\n\n /**\n * Returns the label string for this modal. Primarily used for accessibility.\n *\n * @return {string}\n * the localized or raw label of this modal.\n */\n\n\n ModalDialog.prototype.label = function label() {\n return this.localize(this.options_.label || 'Modal Window');\n };\n\n /**\n * Returns the description string for this modal. Primarily used for\n * accessibility.\n *\n * @return {string}\n * The localized or raw description of this modal.\n */\n\n\n ModalDialog.prototype.description = function description() {\n var desc = this.options_.description || this.localize('This is a modal window.');\n\n // Append a universal closeability message if the modal is closeable.\n if (this.closeable()) {\n desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');\n }\n\n return desc;\n };\n\n /**\n * Opens the modal.\n *\n * @fires ModalDialog#beforemodalopen\n * @fires ModalDialog#modalopen\n */\n\n\n ModalDialog.prototype.open = function open() {\n if (!this.opened_) {\n var player = this.player();\n\n /**\n * Fired just before a `ModalDialog` is opened.\n *\n * @event ModalDialog#beforemodalopen\n * @type {EventTarget~Event}\n */\n this.trigger('beforemodalopen');\n this.opened_ = true;\n\n // Fill content if the modal has never opened before and\n // never been filled.\n if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {\n this.fill();\n }\n\n // If the player was playing, pause it and take note of its previously\n // playing state.\n this.wasPlaying_ = !player.paused();\n\n if (this.options_.pauseOnOpen && this.wasPlaying_) {\n player.pause();\n }\n\n if (this.closeable()) {\n this.on(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));\n }\n\n // Hide controls and note if they were enabled.\n this.hadControls_ = player.controls();\n player.controls(false);\n\n this.show();\n this.conditionalFocus_();\n this.el().setAttribute('aria-hidden', 'false');\n\n /**\n * Fired just after a `ModalDialog` is opened.\n *\n * @event ModalDialog#modalopen\n * @type {EventTarget~Event}\n */\n this.trigger('modalopen');\n this.hasBeenOpened_ = true;\n }\n };\n\n /**\n * If the `ModalDialog` is currently open or closed.\n *\n * @param {boolean} [value]\n * If given, it will open (`true`) or close (`false`) the modal.\n *\n * @return {boolean}\n * the current open state of the modaldialog\n */\n\n\n ModalDialog.prototype.opened = function opened(value) {\n if (typeof value === 'boolean') {\n this[value ? 'open' : 'close']();\n }\n return this.opened_;\n };\n\n /**\n * Closes the modal, does nothing if the `ModalDialog` is\n * not open.\n *\n * @fires ModalDialog#beforemodalclose\n * @fires ModalDialog#modalclose\n */\n\n\n ModalDialog.prototype.close = function close() {\n if (!this.opened_) {\n return;\n }\n var player = this.player();\n\n /**\n * Fired just before a `ModalDialog` is closed.\n *\n * @event ModalDialog#beforemodalclose\n * @type {EventTarget~Event}\n */\n this.trigger('beforemodalclose');\n this.opened_ = false;\n\n if (this.wasPlaying_ && this.options_.pauseOnOpen) {\n player.play();\n }\n\n if (this.closeable()) {\n this.off(this.el_.ownerDocument, 'keydown', bind(this, this.handleKeyPress));\n }\n\n if (this.hadControls_) {\n player.controls(true);\n }\n\n this.hide();\n this.el().setAttribute('aria-hidden', 'true');\n\n /**\n * Fired just after a `ModalDialog` is closed.\n *\n * @event ModalDialog#modalclose\n * @type {EventTarget~Event}\n */\n this.trigger('modalclose');\n this.conditionalBlur_();\n\n if (this.options_.temporary) {\n this.dispose();\n }\n };\n\n /**\n * Check to see if the `ModalDialog` is closeable via the UI.\n *\n * @param {boolean} [value]\n * If given as a boolean, it will set the `closeable` option.\n *\n * @return {boolean}\n * Returns the final value of the closable option.\n */\n\n\n ModalDialog.prototype.closeable = function closeable(value) {\n if (typeof value === 'boolean') {\n var closeable = this.closeable_ = !!value;\n var close = this.getChild('closeButton');\n\n // If this is being made closeable and has no close button, add one.\n if (closeable && !close) {\n\n // The close button should be a child of the modal - not its\n // content element, so temporarily change the content element.\n var temp = this.contentEl_;\n\n this.contentEl_ = this.el_;\n close = this.addChild('closeButton', { controlText: 'Close Modal Dialog' });\n this.contentEl_ = temp;\n this.on(close, 'close', this.close);\n }\n\n // If this is being made uncloseable and has a close button, remove it.\n if (!closeable && close) {\n this.off(close, 'close', this.close);\n this.removeChild(close);\n close.dispose();\n }\n }\n return this.closeable_;\n };\n\n /**\n * Fill the modal's content element with the modal's \"content\" option.\n * The content element will be emptied before this change takes place.\n */\n\n\n ModalDialog.prototype.fill = function fill() {\n this.fillWith(this.content());\n };\n\n /**\n * Fill the modal's content element with arbitrary content.\n * The content element will be emptied before this change takes place.\n *\n * @fires ModalDialog#beforemodalfill\n * @fires ModalDialog#modalfill\n *\n * @param {Mixed} [content]\n * The same rules apply to this as apply to the `content` option.\n */\n\n\n ModalDialog.prototype.fillWith = function fillWith(content) {\n var contentEl = this.contentEl();\n var parentEl = contentEl.parentNode;\n var nextSiblingEl = contentEl.nextSibling;\n\n /**\n * Fired just before a `ModalDialog` is filled with content.\n *\n * @event ModalDialog#beforemodalfill\n * @type {EventTarget~Event}\n */\n this.trigger('beforemodalfill');\n this.hasBeenFilled_ = true;\n\n // Detach the content element from the DOM before performing\n // manipulation to avoid modifying the live DOM multiple times.\n parentEl.removeChild(contentEl);\n this.empty();\n insertContent(contentEl, content);\n /**\n * Fired just after a `ModalDialog` is filled with content.\n *\n * @event ModalDialog#modalfill\n * @type {EventTarget~Event}\n */\n this.trigger('modalfill');\n\n // Re-inject the re-filled content element.\n if (nextSiblingEl) {\n parentEl.insertBefore(contentEl, nextSiblingEl);\n } else {\n parentEl.appendChild(contentEl);\n }\n\n // make sure that the close button is last in the dialog DOM\n var closeButton = this.getChild('closeButton');\n\n if (closeButton) {\n parentEl.appendChild(closeButton.el_);\n }\n };\n\n /**\n * Empties the content element. This happens anytime the modal is filled.\n *\n * @fires ModalDialog#beforemodalempty\n * @fires ModalDialog#modalempty\n */\n\n\n ModalDialog.prototype.empty = function empty() {\n /**\n * Fired just before a `ModalDialog` is emptied.\n *\n * @event ModalDialog#beforemodalempty\n * @type {EventTarget~Event}\n */\n this.trigger('beforemodalempty');\n emptyEl(this.contentEl());\n\n /**\n * Fired just after a `ModalDialog` is emptied.\n *\n * @event ModalDialog#modalempty\n * @type {EventTarget~Event}\n */\n this.trigger('modalempty');\n };\n\n /**\n * Gets or sets the modal content, which gets normalized before being\n * rendered into the DOM.\n *\n * This does not update the DOM or fill the modal, but it is called during\n * that process.\n *\n * @param {Mixed} [value]\n * If defined, sets the internal content value to be used on the\n * next call(s) to `fill`. This value is normalized before being\n * inserted. To \"clear\" the internal content value, pass `null`.\n *\n * @return {Mixed}\n * The current content of the modal dialog\n */\n\n\n ModalDialog.prototype.content = function content(value) {\n if (typeof value !== 'undefined') {\n this.content_ = value;\n }\n return this.content_;\n };\n\n /**\n * conditionally focus the modal dialog if focus was previously on the player.\n *\n * @private\n */\n\n\n ModalDialog.prototype.conditionalFocus_ = function conditionalFocus_() {\n var activeEl = document.activeElement;\n var playerEl = this.player_.el_;\n\n this.previouslyActiveEl_ = null;\n\n if (playerEl.contains(activeEl) || playerEl === activeEl) {\n this.previouslyActiveEl_ = activeEl;\n\n this.focus();\n\n this.on(document, 'keydown', this.handleKeyDown);\n }\n };\n\n /**\n * conditionally blur the element and refocus the last focused element\n *\n * @private\n */\n\n\n ModalDialog.prototype.conditionalBlur_ = function conditionalBlur_() {\n if (this.previouslyActiveEl_) {\n this.previouslyActiveEl_.focus();\n this.previouslyActiveEl_ = null;\n }\n\n this.off(document, 'keydown', this.handleKeyDown);\n };\n\n /**\n * Keydown handler. Attached when modal is focused.\n *\n * @listens keydown\n */\n\n\n ModalDialog.prototype.handleKeyDown = function handleKeyDown(event) {\n // exit early if it isn't a tab key\n if (event.which !== 9) {\n return;\n }\n\n var focusableEls = this.focusableEls_();\n var activeEl = this.el_.querySelector(':focus');\n var focusIndex = void 0;\n\n for (var i = 0; i < focusableEls.length; i++) {\n if (activeEl === focusableEls[i]) {\n focusIndex = i;\n break;\n }\n }\n\n if (document.activeElement === this.el_) {\n focusIndex = 0;\n }\n\n if (event.shiftKey && focusIndex === 0) {\n focusableEls[focusableEls.length - 1].focus();\n event.preventDefault();\n } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {\n focusableEls[0].focus();\n event.preventDefault();\n }\n };\n\n /**\n * get all focusable elements\n *\n * @private\n */\n\n\n ModalDialog.prototype.focusableEls_ = function focusableEls_() {\n var allChildren = this.el_.querySelectorAll('*');\n\n return Array.prototype.filter.call(allChildren, function (child) {\n return (child instanceof window.HTMLAnchorElement || child instanceof window.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window.HTMLInputElement || child instanceof window.HTMLSelectElement || child instanceof window.HTMLTextAreaElement || child instanceof window.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window.HTMLIFrameElement || child instanceof window.HTMLObjectElement || child instanceof window.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');\n });\n };\n\n return ModalDialog;\n}(Component);\n\n/**\n * Default options for `ModalDialog` default options.\n *\n * @type {Object}\n * @private\n */\n\n\nModalDialog.prototype.options_ = {\n pauseOnOpen: true,\n temporary: true\n};\n\nComponent.registerComponent('ModalDialog', ModalDialog);\n\n/**\n * @file track-list.js\n */\n/**\n * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and\n * {@link VideoTrackList}\n *\n * @extends EventTarget\n */\n\nvar TrackList = function (_EventTarget) {\n inherits(TrackList, _EventTarget);\n\n /**\n * Create an instance of this class\n *\n * @param {Track[]} tracks\n * A list of tracks to initialize the list with.\n *\n * @param {Object} [list]\n * The child object with inheritance done manually for ie8.\n *\n * @abstract\n */\n function TrackList() {\n var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];\n\n var _ret;\n\n var list = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;\n classCallCheck(this, TrackList);\n\n var _this = possibleConstructorReturn(this, _EventTarget.call(this));\n\n if (!list) {\n list = _this; // eslint-disable-line\n if (IS_IE8) {\n list = document.createElement('custom');\n for (var prop in TrackList.prototype) {\n if (prop !== 'constructor') {\n list[prop] = TrackList.prototype[prop];\n }\n }\n }\n }\n\n list.tracks_ = [];\n\n /**\n * @memberof TrackList\n * @member {number} length\n * The current number of `Track`s in the this Trackist.\n * @instance\n */\n Object.defineProperty(list, 'length', {\n get: function get$$1() {\n return this.tracks_.length;\n }\n });\n\n for (var i = 0; i < tracks.length; i++) {\n list.addTrack(tracks[i]);\n }\n\n // must return the object, as for ie8 it will not be this\n // but a reference to a document object\n return _ret = list, possibleConstructorReturn(_this, _ret);\n }\n\n /**\n * Add a {@link Track} to the `TrackList`\n *\n * @param {Track} track\n * The audio, video, or text track to add to the list.\n *\n * @fires TrackList#addtrack\n */\n\n\n TrackList.prototype.addTrack = function addTrack(track) {\n var index = this.tracks_.length;\n\n if (!('' + index in this)) {\n Object.defineProperty(this, index, {\n get: function get$$1() {\n return this.tracks_[index];\n }\n });\n }\n\n // Do not add duplicate tracks\n if (this.tracks_.indexOf(track) === -1) {\n this.tracks_.push(track);\n /**\n * Triggered when a track is added to a track list.\n *\n * @event TrackList#addtrack\n * @type {EventTarget~Event}\n * @property {Track} track\n * A reference to track that was added.\n */\n this.trigger({\n track: track,\n type: 'addtrack'\n });\n }\n };\n\n /**\n * Remove a {@link Track} from the `TrackList`\n *\n * @param {Track} rtrack\n * The audio, video, or text track to remove from the list.\n *\n * @fires TrackList#removetrack\n */\n\n\n TrackList.prototype.removeTrack = function removeTrack(rtrack) {\n var track = void 0;\n\n for (var i = 0, l = this.length; i < l; i++) {\n if (this[i] === rtrack) {\n track = this[i];\n if (track.off) {\n track.off();\n }\n\n this.tracks_.splice(i, 1);\n\n break;\n }\n }\n\n if (!track) {\n return;\n }\n\n /**\n * Triggered when a track is removed from track list.\n *\n * @event TrackList#removetrack\n * @type {EventTarget~Event}\n * @property {Track} track\n * A reference to track that was removed.\n */\n this.trigger({\n track: track,\n type: 'removetrack'\n });\n };\n\n /**\n * Get a Track from the TrackList by a tracks id\n *\n * @param {String} id - the id of the track to get\n * @method getTrackById\n * @return {Track}\n * @private\n */\n\n\n TrackList.prototype.getTrackById = function getTrackById(id) {\n var result = null;\n\n for (var i = 0, l = this.length; i < l; i++) {\n var track = this[i];\n\n if (track.id === id) {\n result = track;\n break;\n }\n }\n\n return result;\n };\n\n return TrackList;\n}(EventTarget);\n\n/**\n * Triggered when a different track is selected/enabled.\n *\n * @event TrackList#change\n * @type {EventTarget~Event}\n */\n\n/**\n * Events that can be called with on + eventName. See {@link EventHandler}.\n *\n * @property {Object} TrackList#allowedEvents_\n * @private\n */\n\n\nTrackList.prototype.allowedEvents_ = {\n change: 'change',\n addtrack: 'addtrack',\n removetrack: 'removetrack'\n};\n\n// emulate attribute EventHandler support to allow for feature detection\nfor (var event in TrackList.prototype.allowedEvents_) {\n TrackList.prototype['on' + event] = null;\n}\n\n/**\n * @file audio-track-list.js\n */\n/**\n * Anywhere we call this function we diverge from the spec\n * as we only support one enabled audiotrack at a time\n *\n * @param {AudioTrackList} list\n * list to work on\n *\n * @param {AudioTrack} track\n * The track to skip\n *\n * @private\n */\nvar disableOthers = function disableOthers(list, track) {\n for (var i = 0; i < list.length; i++) {\n if (!Object.keys(list[i]).length || track.id === list[i].id) {\n continue;\n }\n // another audio track is enabled, disable it\n list[i].enabled = false;\n }\n};\n\n/**\n * The current list of {@link AudioTrack} for a media file.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}\n * @extends TrackList\n */\n\nvar AudioTrackList = function (_TrackList) {\n inherits(AudioTrackList, _TrackList);\n\n /**\n * Create an instance of this class.\n *\n * @param {AudioTrack[]} [tracks=[]]\n * A list of `AudioTrack` to instantiate the list with.\n */\n function AudioTrackList() {\n var _this, _ret;\n\n var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];\n classCallCheck(this, AudioTrackList);\n\n var list = void 0;\n\n // make sure only 1 track is enabled\n // sorted from last index to first index\n for (var i = tracks.length - 1; i >= 0; i--) {\n if (tracks[i].enabled) {\n disableOthers(tracks, tracks[i]);\n break;\n }\n }\n\n // IE8 forces us to implement inheritance ourselves\n // as it does not support Object.defineProperty properly\n if (IS_IE8) {\n list = document.createElement('custom');\n for (var prop in TrackList.prototype) {\n if (prop !== 'constructor') {\n list[prop] = TrackList.prototype[prop];\n }\n }\n for (var _prop in AudioTrackList.prototype) {\n if (_prop !== 'constructor') {\n list[_prop] = AudioTrackList.prototype[_prop];\n }\n }\n }\n\n list = (_this = possibleConstructorReturn(this, _TrackList.call(this, tracks, list)), _this);\n list.changing_ = false;\n\n return _ret = list, possibleConstructorReturn(_this, _ret);\n }\n\n /**\n * Add an {@link AudioTrack} to the `AudioTrackList`.\n *\n * @param {AudioTrack} track\n * The AudioTrack to add to the list\n *\n * @fires TrackList#addtrack\n */\n\n\n AudioTrackList.prototype.addTrack = function addTrack(track) {\n var _this2 = this;\n\n if (track.enabled) {\n disableOthers(this, track);\n }\n\n _TrackList.prototype.addTrack.call(this, track);\n // native tracks don't have this\n if (!track.addEventListener) {\n return;\n }\n\n /**\n * @listens AudioTrack#enabledchange\n * @fires TrackList#change\n */\n track.addEventListener('enabledchange', function () {\n // when we are disabling other tracks (since we don't support\n // more than one track at a time) we will set changing_\n // to true so that we don't trigger additional change events\n if (_this2.changing_) {\n return;\n }\n _this2.changing_ = true;\n disableOthers(_this2, track);\n _this2.changing_ = false;\n _this2.trigger('change');\n });\n };\n\n return AudioTrackList;\n}(TrackList);\n\n/**\n * @file video-track-list.js\n */\n/**\n * Un-select all other {@link VideoTrack}s that are selected.\n *\n * @param {VideoTrackList} list\n * list to work on\n *\n * @param {VideoTrack} track\n * The track to skip\n *\n * @private\n */\nvar disableOthers$1 = function disableOthers(list, track) {\n for (var i = 0; i < list.length; i++) {\n if (!Object.keys(list[i]).length || track.id === list[i].id) {\n continue;\n }\n // another video track is enabled, disable it\n list[i].selected = false;\n }\n};\n\n/**\n * The current list of {@link VideoTrack} for a video.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}\n * @extends TrackList\n */\n\nvar VideoTrackList = function (_TrackList) {\n inherits(VideoTrackList, _TrackList);\n\n /**\n * Create an instance of this class.\n *\n * @param {VideoTrack[]} [tracks=[]]\n * A list of `VideoTrack` to instantiate the list with.\n */\n function VideoTrackList() {\n var _this, _ret;\n\n var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];\n classCallCheck(this, VideoTrackList);\n\n var list = void 0;\n\n // make sure only 1 track is enabled\n // sorted from last index to first index\n for (var i = tracks.length - 1; i >= 0; i--) {\n if (tracks[i].selected) {\n disableOthers$1(tracks, tracks[i]);\n break;\n }\n }\n\n // IE8 forces us to implement inheritance ourselves\n // as it does not support Object.defineProperty properly\n if (IS_IE8) {\n list = document.createElement('custom');\n for (var prop in TrackList.prototype) {\n if (prop !== 'constructor') {\n list[prop] = TrackList.prototype[prop];\n }\n }\n for (var _prop in VideoTrackList.prototype) {\n if (_prop !== 'constructor') {\n list[_prop] = VideoTrackList.prototype[_prop];\n }\n }\n }\n\n list = (_this = possibleConstructorReturn(this, _TrackList.call(this, tracks, list)), _this);\n list.changing_ = false;\n\n /**\n * @member {number} VideoTrackList#selectedIndex\n * The current index of the selected {@link VideoTrack`}.\n */\n Object.defineProperty(list, 'selectedIndex', {\n get: function get$$1() {\n for (var _i = 0; _i < this.length; _i++) {\n if (this[_i].selected) {\n return _i;\n }\n }\n return -1;\n },\n set: function set$$1() {}\n });\n\n return _ret = list, possibleConstructorReturn(_this, _ret);\n }\n\n /**\n * Add a {@link VideoTrack} to the `VideoTrackList`.\n *\n * @param {VideoTrack} track\n * The VideoTrack to add to the list\n *\n * @fires TrackList#addtrack\n */\n\n\n VideoTrackList.prototype.addTrack = function addTrack(track) {\n var _this2 = this;\n\n if (track.selected) {\n disableOthers$1(this, track);\n }\n\n _TrackList.prototype.addTrack.call(this, track);\n // native tracks don't have this\n if (!track.addEventListener) {\n return;\n }\n\n /**\n * @listens VideoTrack#selectedchange\n * @fires TrackList#change\n */\n track.addEventListener('selectedchange', function () {\n if (_this2.changing_) {\n return;\n }\n _this2.changing_ = true;\n disableOthers$1(_this2, track);\n _this2.changing_ = false;\n _this2.trigger('change');\n });\n };\n\n return VideoTrackList;\n}(TrackList);\n\n/**\n * @file text-track-list.js\n */\n/**\n * The current list of {@link TextTrack} for a media file.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}\n * @extends TrackList\n */\n\nvar TextTrackList = function (_TrackList) {\n inherits(TextTrackList, _TrackList);\n\n /**\n * Create an instance of this class.\n *\n * @param {TextTrack[]} [tracks=[]]\n * A list of `TextTrack` to instantiate the list with.\n */\n function TextTrackList() {\n var _this, _ret;\n\n var tracks = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];\n classCallCheck(this, TextTrackList);\n\n var list = void 0;\n\n // IE8 forces us to implement inheritance ourselves\n // as it does not support Object.defineProperty properly\n if (IS_IE8) {\n list = document.createElement('custom');\n for (var prop in TrackList.prototype) {\n if (prop !== 'constructor') {\n list[prop] = TrackList.prototype[prop];\n }\n }\n for (var _prop in TextTrackList.prototype) {\n if (_prop !== 'constructor') {\n list[_prop] = TextTrackList.prototype[_prop];\n }\n }\n }\n\n list = (_this = possibleConstructorReturn(this, _TrackList.call(this, tracks, list)), _this);\n return _ret = list, possibleConstructorReturn(_this, _ret);\n }\n\n /**\n * Add a {@link TextTrack} to the `TextTrackList`\n *\n * @param {TextTrack} track\n * The text track to add to the list.\n *\n * @fires TrackList#addtrack\n */\n\n\n TextTrackList.prototype.addTrack = function addTrack(track) {\n _TrackList.prototype.addTrack.call(this, track);\n\n /**\n * @listens TextTrack#modechange\n * @fires TrackList#change\n */\n track.addEventListener('modechange', bind(this, function () {\n this.trigger('change');\n }));\n\n var nonLanguageTextTrackKind = ['metadata', 'chapters'];\n\n if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {\n track.addEventListener('modechange', bind(this, function () {\n this.trigger('selectedlanguagechange');\n }));\n }\n };\n\n return TextTrackList;\n}(TrackList);\n\n/**\n * @file html-track-element-list.js\n */\n\n/**\n * The current list of {@link HtmlTrackElement}s.\n */\n\nvar HtmlTrackElementList = function () {\n\n /**\n * Create an instance of this class.\n *\n * @param {HtmlTrackElement[]} [tracks=[]]\n * A list of `HtmlTrackElement` to instantiate the list with.\n */\n function HtmlTrackElementList() {\n var trackElements = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];\n classCallCheck(this, HtmlTrackElementList);\n\n var list = this; // eslint-disable-line\n\n if (IS_IE8) {\n list = document.createElement('custom');\n\n for (var prop in HtmlTrackElementList.prototype) {\n if (prop !== 'constructor') {\n list[prop] = HtmlTrackElementList.prototype[prop];\n }\n }\n }\n\n list.trackElements_ = [];\n\n /**\n * @memberof HtmlTrackElementList\n * @member {number} length\n * The current number of `Track`s in the this Trackist.\n * @instance\n */\n Object.defineProperty(list, 'length', {\n get: function get$$1() {\n return this.trackElements_.length;\n }\n });\n\n for (var i = 0, length = trackElements.length; i < length; i++) {\n list.addTrackElement_(trackElements[i]);\n }\n\n if (IS_IE8) {\n return list;\n }\n }\n\n /**\n * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`\n *\n * @param {HtmlTrackElement} trackElement\n * The track element to add to the list.\n *\n * @private\n */\n\n\n HtmlTrackElementList.prototype.addTrackElement_ = function addTrackElement_(trackElement) {\n var index = this.trackElements_.length;\n\n if (!('' + index in this)) {\n Object.defineProperty(this, index, {\n get: function get$$1() {\n return this.trackElements_[index];\n }\n });\n }\n\n // Do not add duplicate elements\n if (this.trackElements_.indexOf(trackElement) === -1) {\n this.trackElements_.push(trackElement);\n }\n };\n\n /**\n * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an\n * {@link TextTrack}.\n *\n * @param {TextTrack} track\n * The track associated with a track element.\n *\n * @return {HtmlTrackElement|undefined}\n * The track element that was found or undefined.\n *\n * @private\n */\n\n\n HtmlTrackElementList.prototype.getTrackElementByTrack_ = function getTrackElementByTrack_(track) {\n var trackElement_ = void 0;\n\n for (var i = 0, length = this.trackElements_.length; i < length; i++) {\n if (track === this.trackElements_[i].track) {\n trackElement_ = this.trackElements_[i];\n\n break;\n }\n }\n\n return trackElement_;\n };\n\n /**\n * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`\n *\n * @param {HtmlTrackElement} trackElement\n * The track element to remove from the list.\n *\n * @private\n */\n\n\n HtmlTrackElementList.prototype.removeTrackElement_ = function removeTrackElement_(trackElement) {\n for (var i = 0, length = this.trackElements_.length; i < length; i++) {\n if (trackElement === this.trackElements_[i]) {\n this.trackElements_.splice(i, 1);\n\n break;\n }\n }\n };\n\n return HtmlTrackElementList;\n}();\n\n/**\n * @file text-track-cue-list.js\n */\n/**\n * @typedef {Object} TextTrackCueList~TextTrackCue\n *\n * @property {string} id\n * The unique id for this text track cue\n *\n * @property {number} startTime\n * The start time for this text track cue\n *\n * @property {number} endTime\n * The end time for this text track cue\n *\n * @property {boolean} pauseOnExit\n * Pause when the end time is reached if true.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}\n */\n\n/**\n * A List of TextTrackCues.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}\n */\n\nvar TextTrackCueList = function () {\n\n /**\n * Create an instance of this class..\n *\n * @param {Array} cues\n * A list of cues to be initialized with\n */\n function TextTrackCueList(cues) {\n classCallCheck(this, TextTrackCueList);\n\n var list = this; // eslint-disable-line\n\n if (IS_IE8) {\n list = document.createElement('custom');\n\n for (var prop in TextTrackCueList.prototype) {\n if (prop !== 'constructor') {\n list[prop] = TextTrackCueList.prototype[prop];\n }\n }\n }\n\n TextTrackCueList.prototype.setCues_.call(list, cues);\n\n /**\n * @memberof TextTrackCueList\n * @member {number} length\n * The current number of `TextTrackCue`s in the TextTrackCueList.\n * @instance\n */\n Object.defineProperty(list, 'length', {\n get: function get$$1() {\n return this.length_;\n }\n });\n\n if (IS_IE8) {\n return list;\n }\n }\n\n /**\n * A setter for cues in this list. Creates getters\n * an an index for the cues.\n *\n * @param {Array} cues\n * An array of cues to set\n *\n * @private\n */\n\n\n TextTrackCueList.prototype.setCues_ = function setCues_(cues) {\n var oldLength = this.length || 0;\n var i = 0;\n var l = cues.length;\n\n this.cues_ = cues;\n this.length_ = cues.length;\n\n var defineProp = function defineProp(index) {\n if (!('' + index in this)) {\n Object.defineProperty(this, '' + index, {\n get: function get$$1() {\n return this.cues_[index];\n }\n });\n }\n };\n\n if (oldLength < l) {\n i = oldLength;\n\n for (; i < l; i++) {\n defineProp.call(this, i);\n }\n }\n };\n\n /**\n * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.\n *\n * @param {string} id\n * The id of the cue that should be searched for.\n *\n * @return {TextTrackCueList~TextTrackCue|null}\n * A single cue or null if none was found.\n */\n\n\n TextTrackCueList.prototype.getCueById = function getCueById(id) {\n var result = null;\n\n for (var i = 0, l = this.length; i < l; i++) {\n var cue = this[i];\n\n if (cue.id === id) {\n result = cue;\n break;\n }\n }\n\n return result;\n };\n\n return TextTrackCueList;\n}();\n\n/**\n * @file track-kinds.js\n */\n\n/**\n * All possible `VideoTrackKind`s\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind\n * @typedef VideoTrack~Kind\n * @enum\n */\nvar VideoTrackKind = {\n alternative: 'alternative',\n captions: 'captions',\n main: 'main',\n sign: 'sign',\n subtitles: 'subtitles',\n commentary: 'commentary'\n};\n\n/**\n * All possible `AudioTrackKind`s\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind\n * @typedef AudioTrack~Kind\n * @enum\n */\nvar AudioTrackKind = {\n 'alternative': 'alternative',\n 'descriptions': 'descriptions',\n 'main': 'main',\n 'main-desc': 'main-desc',\n 'translation': 'translation',\n 'commentary': 'commentary'\n};\n\n/**\n * All possible `TextTrackKind`s\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind\n * @typedef TextTrack~Kind\n * @enum\n */\nvar TextTrackKind = {\n subtitles: 'subtitles',\n captions: 'captions',\n descriptions: 'descriptions',\n chapters: 'chapters',\n metadata: 'metadata'\n};\n\n/**\n * All possible `TextTrackMode`s\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode\n * @typedef TextTrack~Mode\n * @enum\n */\nvar TextTrackMode = {\n disabled: 'disabled',\n hidden: 'hidden',\n showing: 'showing'\n};\n\n/**\n * @file track.js\n */\n/**\n * A Track class that contains all of the common functionality for {@link AudioTrack},\n * {@link VideoTrack}, and {@link TextTrack}.\n *\n * > Note: This class should not be used directly\n *\n * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}\n * @extends EventTarget\n * @abstract\n */\n\nvar Track = function (_EventTarget) {\n inherits(Track, _EventTarget);\n\n /**\n * Create an instance of this class.\n *\n * @param {Object} [options={}]\n * Object of option names and values\n *\n * @param {string} [options.kind='']\n * A valid kind for the track type you are creating.\n *\n * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n * A unique id for this AudioTrack.\n *\n * @param {string} [options.label='']\n * The menu label for this track.\n *\n * @param {string} [options.language='']\n * A valid two character language code.\n *\n * @abstract\n */\n function Track() {\n var _ret;\n\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n classCallCheck(this, Track);\n\n var _this = possibleConstructorReturn(this, _EventTarget.call(this));\n\n var track = _this; // eslint-disable-line\n\n if (IS_IE8) {\n track = document.createElement('custom');\n for (var prop in Track.prototype) {\n if (prop !== 'constructor') {\n track[prop] = Track.prototype[prop];\n }\n }\n }\n\n var trackProps = {\n id: options.id || 'vjs_track_' + newGUID(),\n kind: options.kind || '',\n label: options.label || '',\n language: options.language || ''\n };\n\n /**\n * @memberof Track\n * @member {string} id\n * The id of this track. Cannot be changed after creation.\n * @instance\n *\n * @readonly\n */\n\n /**\n * @memberof Track\n * @member {string} kind\n * The kind of track that this is. Cannot be changed after creation.\n * @instance\n *\n * @readonly\n */\n\n /**\n * @memberof Track\n * @member {string} label\n * The label of this track. Cannot be changed after creation.\n * @instance\n *\n * @readonly\n */\n\n /**\n * @memberof Track\n * @member {string} language\n * The two letter language code for this track. Cannot be changed after\n * creation.\n * @instance\n *\n * @readonly\n */\n\n var _loop = function _loop(key) {\n Object.defineProperty(track, key, {\n get: function get$$1() {\n return trackProps[key];\n },\n set: function set$$1() {}\n });\n };\n\n for (var key in trackProps) {\n _loop(key);\n }\n\n return _ret = track, possibleConstructorReturn(_this, _ret);\n }\n\n return Track;\n}(EventTarget);\n\n/**\n * @file url.js\n * @module url\n */\n/**\n * @typedef {Object} url:URLObject\n *\n * @property {string} protocol\n * The protocol of the url that was parsed.\n *\n * @property {string} hostname\n * The hostname of the url that was parsed.\n *\n * @property {string} port\n * The port of the url that was parsed.\n *\n * @property {string} pathname\n * The pathname of the url that was parsed.\n *\n * @property {string} search\n * The search query of the url that was parsed.\n *\n * @property {string} hash\n * The hash of the url that was parsed.\n *\n * @property {string} host\n * The host of the url that was parsed.\n */\n\n/**\n * Resolve and parse the elements of a URL.\n *\n * @param {String} url\n * The url to parse\n *\n * @return {url:URLObject}\n * An object of url details\n */\nvar parseUrl = function parseUrl(url) {\n var props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host'];\n\n // add the url to an anchor and let the browser parse the URL\n var a = document.createElement('a');\n\n a.href = url;\n\n // IE8 (and 9?) Fix\n // ie8 doesn't parse the URL correctly until the anchor is actually\n // added to the body, and an innerHTML is needed to trigger the parsing\n var addToBody = a.host === '' && a.protocol !== 'file:';\n var div = void 0;\n\n if (addToBody) {\n div = document.createElement('div');\n div.innerHTML = '<a href=\"' + url + '\"></a>';\n a = div.firstChild;\n // prevent the div from affecting layout\n div.setAttribute('style', 'display:none; position:absolute;');\n document.body.appendChild(div);\n }\n\n // Copy the specific URL properties to a new object\n // This is also needed for IE8 because the anchor loses its\n // properties when it's removed from the dom\n var details = {};\n\n for (var i = 0; i < props.length; i++) {\n details[props[i]] = a[props[i]];\n }\n\n // IE9 adds the port to the host property unlike everyone else. If\n // a port identifier is added for standard ports, strip it.\n if (details.protocol === 'http:') {\n details.host = details.host.replace(/:80$/, '');\n }\n\n if (details.protocol === 'https:') {\n details.host = details.host.replace(/:443$/, '');\n }\n\n if (!details.protocol) {\n details.protocol = window.location.protocol;\n }\n\n if (addToBody) {\n document.body.removeChild(div);\n }\n\n return details;\n};\n\n/**\n * Get absolute version of relative URL. Used to tell flash correct URL.\n *\n *\n * @param {string} url\n * URL to make absolute\n *\n * @return {string}\n * Absolute URL\n *\n * @see http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue\n */\nvar getAbsoluteURL = function getAbsoluteURL(url) {\n // Check if absolute URL\n if (!url.match(/^https?:\\/\\//)) {\n // Convert to absolute URL. Flash hosted off-site needs an absolute URL.\n var div = document.createElement('div');\n\n div.innerHTML = '<a href=\"' + url + '\">x</a>';\n url = div.firstChild.href;\n }\n\n return url;\n};\n\n/**\n * Returns the extension of the passed file name. It will return an empty string\n * if passed an invalid path.\n *\n * @param {string} path\n * The fileName path like '/path/to/file.mp4'\n *\n * @returns {string}\n * The extension in lower case or an empty string if no\n * extension could be found.\n */\nvar getFileExtension = function getFileExtension(path) {\n if (typeof path === 'string') {\n var splitPathRe = /^(\\/?)([\\s\\S]*?)((?:\\.{1,2}|[^\\/]+?)(\\.([^\\.\\/\\?]+)))(?:[\\/]*|[\\?].*)$/i;\n var pathParts = splitPathRe.exec(path);\n\n if (pathParts) {\n return pathParts.pop().toLowerCase();\n }\n }\n\n return '';\n};\n\n/**\n * Returns whether the url passed is a cross domain request or not.\n *\n * @param {string} url\n * The url to check.\n *\n * @return {boolean}\n * Whether it is a cross domain request or not.\n */\nvar isCrossOrigin = function isCrossOrigin(url) {\n var winLoc = window.location;\n var urlInfo = parseUrl(url);\n\n // IE8 protocol relative urls will return ':' for protocol\n var srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol;\n\n // Check if url is for another domain/origin\n // IE8 doesn't know location.origin, so we won't rely on it here\n var crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;\n\n return crossOrigin;\n};\n\nvar Url = (Object.freeze || Object)({\n\tparseUrl: parseUrl,\n\tgetAbsoluteURL: getAbsoluteURL,\n\tgetFileExtension: getFileExtension,\n\tisCrossOrigin: isCrossOrigin\n});\n\n/**\n * @file text-track.js\n */\n/**\n * Takes a webvtt file contents and parses it into cues\n *\n * @param {string} srcContent\n * webVTT file contents\n *\n * @param {TextTrack} track\n * TextTrack to add cues to. Cues come from the srcContent.\n *\n * @private\n */\nvar parseCues = function parseCues(srcContent, track) {\n var parser = new window.WebVTT.Parser(window, window.vttjs, window.WebVTT.StringDecoder());\n var errors = [];\n\n parser.oncue = function (cue) {\n track.addCue(cue);\n };\n\n parser.onparsingerror = function (error) {\n errors.push(error);\n };\n\n parser.onflush = function () {\n track.trigger({\n type: 'loadeddata',\n target: track\n });\n };\n\n parser.parse(srcContent);\n if (errors.length > 0) {\n if (window.console && window.console.groupCollapsed) {\n window.console.groupCollapsed('Text Track parsing errors for ' + track.src);\n }\n errors.forEach(function (error) {\n return log$1.error(error);\n });\n if (window.console && window.console.groupEnd) {\n window.console.groupEnd();\n }\n }\n\n parser.flush();\n};\n\n/**\n * Load a `TextTrack` from a specifed url.\n *\n * @param {string} src\n * Url to load track from.\n *\n * @param {TextTrack} track\n * Track to add cues to. Comes from the content at the end of `url`.\n *\n * @private\n */\nvar loadTrack = function loadTrack(src, track) {\n var opts = {\n uri: src\n };\n var crossOrigin = isCrossOrigin(src);\n\n if (crossOrigin) {\n opts.cors = crossOrigin;\n }\n\n xhr(opts, bind(this, function (err, response, responseBody) {\n if (err) {\n return log$1.error(err, response);\n }\n\n track.loaded_ = true;\n\n // Make sure that vttjs has loaded, otherwise, wait till it finished loading\n // NOTE: this is only used for the alt/video.novtt.js build\n if (typeof window.WebVTT !== 'function') {\n if (track.tech_) {\n var loadHandler = function loadHandler() {\n return parseCues(responseBody, track);\n };\n\n track.tech_.on('vttjsloaded', loadHandler);\n track.tech_.on('vttjserror', function () {\n log$1.error('vttjs failed to load, stopping trying to process ' + track.src);\n track.tech_.off('vttjsloaded', loadHandler);\n });\n }\n } else {\n parseCues(responseBody, track);\n }\n }));\n};\n\n/**\n * A representation of a single `TextTrack`.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}\n * @extends Track\n */\n\nvar TextTrack = function (_Track) {\n inherits(TextTrack, _Track);\n\n /**\n * Create an instance of this class.\n *\n * @param {Object} options={}\n * Object of option names and values\n *\n * @param {Tech} options.tech\n * A reference to the tech that owns this TextTrack.\n *\n * @param {TextTrack~Kind} [options.kind='subtitles']\n * A valid text track kind.\n *\n * @param {TextTrack~Mode} [options.mode='disabled']\n * A valid text track mode.\n *\n * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n * A unique id for this TextTrack.\n *\n * @param {string} [options.label='']\n * The menu label for this track.\n *\n * @param {string} [options.language='']\n * A valid two character language code.\n *\n * @param {string} [options.srclang='']\n * A valid two character language code. An alternative, but deprioritized\n * vesion of `options.language`\n *\n * @param {string} [options.src]\n * A url to TextTrack cues.\n *\n * @param {boolean} [options.default]\n * If this track should default to on or off.\n */\n function TextTrack() {\n var _this, _ret;\n\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n classCallCheck(this, TextTrack);\n\n if (!options.tech) {\n throw new Error('A tech was not provided.');\n }\n\n var settings = mergeOptions(options, {\n kind: TextTrackKind[options.kind] || 'subtitles',\n language: options.language || options.srclang || ''\n });\n var mode = TextTrackMode[settings.mode] || 'disabled';\n var default_ = settings['default'];\n\n if (settings.kind === 'metadata' || settings.kind === 'chapters') {\n mode = 'hidden';\n }\n // on IE8 this will be a document element\n // for every other browser this will be a normal object\n var tt = (_this = possibleConstructorReturn(this, _Track.call(this, settings)), _this);\n\n tt.tech_ = settings.tech;\n\n if (IS_IE8) {\n for (var prop in TextTrack.prototype) {\n if (prop !== 'constructor') {\n tt[prop] = TextTrack.prototype[prop];\n }\n }\n }\n\n tt.cues_ = [];\n tt.activeCues_ = [];\n\n var cues = new TextTrackCueList(tt.cues_);\n var activeCues = new TextTrackCueList(tt.activeCues_);\n var changed = false;\n var timeupdateHandler = bind(tt, function () {\n\n // Accessing this.activeCues for the side-effects of updating itself\n // due to it's nature as a getter function. Do not remove or cues will\n // stop updating!\n // Use the setter to prevent deletion from uglify (pure_getters rule)\n this.activeCues = this.activeCues;\n if (changed) {\n this.trigger('cuechange');\n changed = false;\n }\n });\n\n if (mode !== 'disabled') {\n tt.tech_.ready(function () {\n tt.tech_.on('timeupdate', timeupdateHandler);\n }, true);\n }\n\n /**\n * @memberof TextTrack\n * @member {boolean} default\n * If this track was set to be on or off by default. Cannot be changed after\n * creation.\n * @instance\n *\n * @readonly\n */\n Object.defineProperty(tt, 'default', {\n get: function get$$1() {\n return default_;\n },\n set: function set$$1() {}\n });\n\n /**\n * @memberof TextTrack\n * @member {string} mode\n * Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will\n * not be set if setting to an invalid mode.\n * @instance\n *\n * @fires TextTrack#modechange\n */\n Object.defineProperty(tt, 'mode', {\n get: function get$$1() {\n return mode;\n },\n set: function set$$1(newMode) {\n var _this2 = this;\n\n if (!TextTrackMode[newMode]) {\n return;\n }\n mode = newMode;\n if (mode === 'showing') {\n\n this.tech_.ready(function () {\n _this2.tech_.on('timeupdate', timeupdateHandler);\n }, true);\n }\n /**\n * An event that fires when mode changes on this track. This allows\n * the TextTrackList that holds this track to act accordingly.\n *\n * > Note: This is not part of the spec!\n *\n * @event TextTrack#modechange\n * @type {EventTarget~Event}\n */\n this.trigger('modechange');\n }\n });\n\n /**\n * @memberof TextTrack\n * @member {TextTrackCueList} cues\n * The text track cue list for this TextTrack.\n * @instance\n */\n Object.defineProperty(tt, 'cues', {\n get: function get$$1() {\n if (!this.loaded_) {\n return null;\n }\n\n return cues;\n },\n set: function set$$1() {}\n });\n\n /**\n * @memberof TextTrack\n * @member {TextTrackCueList} activeCues\n * The list text track cues that are currently active for this TextTrack.\n * @instance\n */\n Object.defineProperty(tt, 'activeCues', {\n get: function get$$1() {\n if (!this.loaded_) {\n return null;\n }\n\n // nothing to do\n if (this.cues.length === 0) {\n return activeCues;\n }\n\n var ct = this.tech_.currentTime();\n var active = [];\n\n for (var i = 0, l = this.cues.length; i < l; i++) {\n var cue = this.cues[i];\n\n if (cue.startTime <= ct && cue.endTime >= ct) {\n active.push(cue);\n } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) {\n active.push(cue);\n }\n }\n\n changed = false;\n\n if (active.length !== this.activeCues_.length) {\n changed = true;\n } else {\n for (var _i = 0; _i < active.length; _i++) {\n if (this.activeCues_.indexOf(active[_i]) === -1) {\n changed = true;\n }\n }\n }\n\n this.activeCues_ = active;\n activeCues.setCues_(this.activeCues_);\n\n return activeCues;\n },\n\n\n // /!\\ Keep this setter empty (see the timeupdate handler above)\n set: function set$$1() {}\n });\n\n if (settings.src) {\n tt.src = settings.src;\n loadTrack(settings.src, tt);\n } else {\n tt.loaded_ = true;\n }\n\n return _ret = tt, possibleConstructorReturn(_this, _ret);\n }\n\n /**\n * Add a cue to the internal list of cues.\n *\n * @param {TextTrack~Cue} cue\n * The cue to add to our internal list\n */\n\n\n TextTrack.prototype.addCue = function addCue(originalCue) {\n var cue = originalCue;\n\n if (window.vttjs && !(originalCue instanceof window.vttjs.VTTCue)) {\n cue = new window.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);\n\n for (var prop in originalCue) {\n if (!(prop in cue)) {\n cue[prop] = originalCue[prop];\n }\n }\n\n // make sure that `id` is copied over\n cue.id = originalCue.id;\n cue.originalCue_ = originalCue;\n }\n\n var tracks = this.tech_.textTracks();\n\n for (var i = 0; i < tracks.length; i++) {\n if (tracks[i] !== this) {\n tracks[i].removeCue(cue);\n }\n }\n\n this.cues_.push(cue);\n this.cues.setCues_(this.cues_);\n };\n\n /**\n * Remove a cue from our internal list\n *\n * @param {TextTrack~Cue} removeCue\n * The cue to remove from our internal list\n */\n\n\n TextTrack.prototype.removeCue = function removeCue(_removeCue) {\n var i = this.cues_.length;\n\n while (i--) {\n var cue = this.cues_[i];\n\n if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) {\n this.cues_.splice(i, 1);\n this.cues.setCues_(this.cues_);\n break;\n }\n }\n };\n\n return TextTrack;\n}(Track);\n\n/**\n * cuechange - One or more cues in the track have become active or stopped being active.\n */\n\n\nTextTrack.prototype.allowedEvents_ = {\n cuechange: 'cuechange'\n};\n\n/**\n * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}\n * only one `AudioTrack` in the list will be enabled at a time.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}\n * @extends Track\n */\n\nvar AudioTrack = function (_Track) {\n inherits(AudioTrack, _Track);\n\n /**\n * Create an instance of this class.\n *\n * @param {Object} [options={}]\n * Object of option names and values\n *\n * @param {AudioTrack~Kind} [options.kind='']\n * A valid audio track kind\n *\n * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n * A unique id for this AudioTrack.\n *\n * @param {string} [options.label='']\n * The menu label for this track.\n *\n * @param {string} [options.language='']\n * A valid two character language code.\n *\n * @param {boolean} [options.enabled]\n * If this track is the one that is currently playing. If this track is part of\n * an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.\n */\n function AudioTrack() {\n var _this, _ret;\n\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n classCallCheck(this, AudioTrack);\n\n var settings = mergeOptions(options, {\n kind: AudioTrackKind[options.kind] || ''\n });\n // on IE8 this will be a document element\n // for every other browser this will be a normal object\n var track = (_this = possibleConstructorReturn(this, _Track.call(this, settings)), _this);\n var enabled = false;\n\n if (IS_IE8) {\n for (var prop in AudioTrack.prototype) {\n if (prop !== 'constructor') {\n track[prop] = AudioTrack.prototype[prop];\n }\n }\n }\n /**\n * @memberof AudioTrack\n * @member {boolean} enabled\n * If this `AudioTrack` is enabled or not. When setting this will\n * fire {@link AudioTrack#enabledchange} if the state of enabled is changed.\n * @instance\n *\n * @fires VideoTrack#selectedchange\n */\n Object.defineProperty(track, 'enabled', {\n get: function get$$1() {\n return enabled;\n },\n set: function set$$1(newEnabled) {\n // an invalid or unchanged value\n if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {\n return;\n }\n enabled = newEnabled;\n\n /**\n * An event that fires when enabled changes on this track. This allows\n * the AudioTrackList that holds this track to act accordingly.\n *\n * > Note: This is not part of the spec! Native tracks will do\n * this internally without an event.\n *\n * @event AudioTrack#enabledchange\n * @type {EventTarget~Event}\n */\n this.trigger('enabledchange');\n }\n });\n\n // if the user sets this track to selected then\n // set selected to that true value otherwise\n // we keep it false\n if (settings.enabled) {\n track.enabled = settings.enabled;\n }\n track.loaded_ = true;\n\n return _ret = track, possibleConstructorReturn(_this, _ret);\n }\n\n return AudioTrack;\n}(Track);\n\n/**\n * A representation of a single `VideoTrack`.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}\n * @extends Track\n */\n\nvar VideoTrack = function (_Track) {\n inherits(VideoTrack, _Track);\n\n /**\n * Create an instance of this class.\n *\n * @param {Object} [options={}]\n * Object of option names and values\n *\n * @param {string} [options.kind='']\n * A valid {@link VideoTrack~Kind}\n *\n * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n * A unique id for this AudioTrack.\n *\n * @param {string} [options.label='']\n * The menu label for this track.\n *\n * @param {string} [options.language='']\n * A valid two character language code.\n *\n * @param {boolean} [options.selected]\n * If this track is the one that is currently playing.\n */\n function VideoTrack() {\n var _this, _ret;\n\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n classCallCheck(this, VideoTrack);\n\n var settings = mergeOptions(options, {\n kind: VideoTrackKind[options.kind] || ''\n });\n\n // on IE8 this will be a document element\n // for every other browser this will be a normal object\n var track = (_this = possibleConstructorReturn(this, _Track.call(this, settings)), _this);\n var selected = false;\n\n if (IS_IE8) {\n for (var prop in VideoTrack.prototype) {\n if (prop !== 'constructor') {\n track[prop] = VideoTrack.prototype[prop];\n }\n }\n }\n\n /**\n * @memberof VideoTrack\n * @member {boolean} selected\n * If this `VideoTrack` is selected or not. When setting this will\n * fire {@link VideoTrack#selectedchange} if the state of selected changed.\n * @instance\n *\n * @fires VideoTrack#selectedchange\n */\n Object.defineProperty(track, 'selected', {\n get: function get$$1() {\n return selected;\n },\n set: function set$$1(newSelected) {\n // an invalid or unchanged value\n if (typeof newSelected !== 'boolean' || newSelected === selected) {\n return;\n }\n selected = newSelected;\n\n /**\n * An event that fires when selected changes on this track. This allows\n * the VideoTrackList that holds this track to act accordingly.\n *\n * > Note: This is not part of the spec! Native tracks will do\n * this internally without an event.\n *\n * @event VideoTrack#selectedchange\n * @type {EventTarget~Event}\n */\n this.trigger('selectedchange');\n }\n });\n\n // if the user sets this track to selected then\n // set selected to that true value otherwise\n // we keep it false\n if (settings.selected) {\n track.selected = settings.selected;\n }\n\n return _ret = track, possibleConstructorReturn(_this, _ret);\n }\n\n return VideoTrack;\n}(Track);\n\n/**\n * @file html-track-element.js\n */\n\n/**\n * @memberof HTMLTrackElement\n * @typedef {HTMLTrackElement~ReadyState}\n * @enum {number}\n */\nvar NONE = 0;\nvar LOADING = 1;\nvar LOADED = 2;\nvar ERROR = 3;\n\n/**\n * A single track represented in the DOM.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}\n * @extends EventTarget\n */\n\nvar HTMLTrackElement = function (_EventTarget) {\n inherits(HTMLTrackElement, _EventTarget);\n\n /**\n * Create an instance of this class.\n *\n * @param {Object} options={}\n * Object of option names and values\n *\n * @param {Tech} options.tech\n * A reference to the tech that owns this HTMLTrackElement.\n *\n * @param {TextTrack~Kind} [options.kind='subtitles']\n * A valid text track kind.\n *\n * @param {TextTrack~Mode} [options.mode='disabled']\n * A valid text track mode.\n *\n * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n * A unique id for this TextTrack.\n *\n * @param {string} [options.label='']\n * The menu label for this track.\n *\n * @param {string} [options.language='']\n * A valid two character language code.\n *\n * @param {string} [options.srclang='']\n * A valid two character language code. An alternative, but deprioritized\n * vesion of `options.language`\n *\n * @param {string} [options.src]\n * A url to TextTrack cues.\n *\n * @param {boolean} [options.default]\n * If this track should default to on or off.\n */\n function HTMLTrackElement() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n classCallCheck(this, HTMLTrackElement);\n\n var _this = possibleConstructorReturn(this, _EventTarget.call(this));\n\n var readyState = void 0;\n var trackElement = _this; // eslint-disable-line\n\n if (IS_IE8) {\n trackElement = document.createElement('custom');\n\n for (var prop in HTMLTrackElement.prototype) {\n if (prop !== 'constructor') {\n trackElement[prop] = HTMLTrackElement.prototype[prop];\n }\n }\n }\n\n var track = new TextTrack(options);\n\n trackElement.kind = track.kind;\n trackElement.src = track.src;\n trackElement.srclang = track.language;\n trackElement.label = track.label;\n trackElement['default'] = track['default'];\n\n /**\n * @memberof HTMLTrackElement\n * @member {HTMLTrackElement~ReadyState} readyState\n * The current ready state of the track element.\n * @instance\n */\n Object.defineProperty(trackElement, 'readyState', {\n get: function get$$1() {\n return readyState;\n }\n });\n\n /**\n * @memberof HTMLTrackElement\n * @member {TextTrack} track\n * The underlying TextTrack object.\n * @instance\n *\n */\n Object.defineProperty(trackElement, 'track', {\n get: function get$$1() {\n return track;\n }\n });\n\n readyState = NONE;\n\n /**\n * @listens TextTrack#loadeddata\n * @fires HTMLTrackElement#load\n */\n track.addEventListener('loadeddata', function () {\n readyState = LOADED;\n\n trackElement.trigger({\n type: 'load',\n target: trackElement\n });\n });\n\n if (IS_IE8) {\n var _ret;\n\n return _ret = trackElement, possibleConstructorReturn(_this, _ret);\n }\n return _this;\n }\n\n return HTMLTrackElement;\n}(EventTarget);\n\nHTMLTrackElement.prototype.allowedEvents_ = {\n load: 'load'\n};\n\nHTMLTrackElement.NONE = NONE;\nHTMLTrackElement.LOADING = LOADING;\nHTMLTrackElement.LOADED = LOADED;\nHTMLTrackElement.ERROR = ERROR;\n\n/*\n * This file contains all track properties that are used in\n * player.js, tech.js, html5.js and possibly other techs in the future.\n */\n\nvar NORMAL = {\n audio: {\n ListClass: AudioTrackList,\n TrackClass: AudioTrack,\n capitalName: 'Audio'\n },\n video: {\n ListClass: VideoTrackList,\n TrackClass: VideoTrack,\n capitalName: 'Video'\n },\n text: {\n ListClass: TextTrackList,\n TrackClass: TextTrack,\n capitalName: 'Text'\n }\n};\n\nObject.keys(NORMAL).forEach(function (type) {\n NORMAL[type].getterName = type + 'Tracks';\n NORMAL[type].privateName = type + 'Tracks_';\n});\n\nvar REMOTE = {\n remoteText: {\n ListClass: TextTrackList,\n TrackClass: TextTrack,\n capitalName: 'RemoteText',\n getterName: 'remoteTextTracks',\n privateName: 'remoteTextTracks_'\n },\n remoteTextEl: {\n ListClass: HtmlTrackElementList,\n TrackClass: HTMLTrackElement,\n capitalName: 'RemoteTextTrackEls',\n getterName: 'remoteTextTrackEls',\n privateName: 'remoteTextTrackEls_'\n }\n};\n\nvar ALL = mergeOptions(NORMAL, REMOTE);\n\nREMOTE.names = Object.keys(REMOTE);\nNORMAL.names = Object.keys(NORMAL);\nALL.names = [].concat(REMOTE.names).concat(NORMAL.names);\n\n/**\n * @file tech.js\n */\n\n/**\n * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string\n * that just contains the src url alone.\n * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`\n * `var SourceString = 'http://example.com/some-video.mp4';`\n *\n * @typedef {Object|string} Tech~SourceObject\n *\n * @property {string} src\n * The url to the source\n *\n * @property {string} type\n * The mime type of the source\n */\n\n/**\n * A function used by {@link Tech} to create a new {@link TextTrack}.\n *\n * @private\n *\n * @param {Tech} self\n * An instance of the Tech class.\n *\n * @param {string} kind\n * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n *\n * @param {string} [label]\n * Label to identify the text track\n *\n * @param {string} [language]\n * Two letter language abbreviation\n *\n * @param {Object} [options={}]\n * An object with additional text track options\n *\n * @return {TextTrack}\n * The text track that was created.\n */\nfunction createTrackHelper(self, kind, label, language) {\n var options = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};\n\n var tracks = self.textTracks();\n\n options.kind = kind;\n\n if (label) {\n options.label = label;\n }\n if (language) {\n options.language = language;\n }\n options.tech = self;\n\n var track = new ALL.text.TrackClass(options);\n\n tracks.addTrack(track);\n\n return track;\n}\n\n/**\n * This is the base class for media playback technology controllers, such as\n * {@link Flash} and {@link HTML5}\n *\n * @extends Component\n */\n\nvar Tech = function (_Component) {\n inherits(Tech, _Component);\n\n /**\n * Create an instance of this Tech.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n *\n * @param {Component~ReadyCallback} ready\n * Callback function to call when the `HTML5` Tech is ready.\n */\n function Tech() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n var ready = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : function () {};\n classCallCheck(this, Tech);\n\n // we don't want the tech to report user activity automatically.\n // This is done manually in addControlsListeners\n options.reportTouchActivity = false;\n\n // keep track of whether the current source has played at all to\n // implement a very limited played()\n var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));\n\n _this.hasStarted_ = false;\n _this.on('playing', function () {\n this.hasStarted_ = true;\n });\n _this.on('loadstart', function () {\n this.hasStarted_ = false;\n });\n\n ALL.names.forEach(function (name) {\n var props = ALL[name];\n\n if (options && options[props.getterName]) {\n _this[props.privateName] = options[props.getterName];\n }\n });\n\n // Manually track progress in cases where the browser/flash player doesn't report it.\n if (!_this.featuresProgressEvents) {\n _this.manualProgressOn();\n }\n\n // Manually track timeupdates in cases where the browser/flash player doesn't report it.\n if (!_this.featuresTimeupdateEvents) {\n _this.manualTimeUpdatesOn();\n }\n\n ['Text', 'Audio', 'Video'].forEach(function (track) {\n if (options['native' + track + 'Tracks'] === false) {\n _this['featuresNative' + track + 'Tracks'] = false;\n }\n });\n\n if (options.nativeCaptions === false || options.nativeTextTracks === false) {\n _this.featuresNativeTextTracks = false;\n } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {\n _this.featuresNativeTextTracks = true;\n }\n\n if (!_this.featuresNativeTextTracks) {\n _this.emulateTextTracks();\n }\n\n _this.autoRemoteTextTracks_ = new ALL.text.ListClass();\n\n _this.initTrackListeners();\n\n // Turn on component tap events only if not using native controls\n if (!options.nativeControlsForTouch) {\n _this.emitTapEvents();\n }\n\n if (_this.constructor) {\n _this.name_ = _this.constructor.name || 'Unknown Tech';\n }\n return _this;\n }\n\n /**\n * A special function to trigger source set in a way that will allow player\n * to re-trigger if the player or tech are not ready yet.\n *\n * @fires Tech#sourceset\n * @param {string} src The source string at the time of the source changing.\n */\n\n\n Tech.prototype.triggerSourceset = function triggerSourceset(src) {\n var _this2 = this;\n\n if (!this.isReady_) {\n // on initial ready we have to trigger source set\n // 1ms after ready so that player can watch for it.\n this.one('ready', function () {\n return _this2.setTimeout(function () {\n return _this2.triggerSourceset(src);\n }, 1);\n });\n }\n\n /**\n * Fired when the source is set on the tech causing the media element\n * to reload.\n *\n * @see {@link Player#event:sourceset}\n * @event Tech#sourceset\n * @type {EventTarget~Event}\n */\n this.trigger({\n src: src,\n type: 'sourceset'\n });\n };\n\n /* Fallbacks for unsupported event types\n ================================================================================ */\n\n /**\n * Polyfill the `progress` event for browsers that don't support it natively.\n *\n * @see {@link Tech#trackProgress}\n */\n\n\n Tech.prototype.manualProgressOn = function manualProgressOn() {\n this.on('durationchange', this.onDurationChange);\n\n this.manualProgress = true;\n\n // Trigger progress watching when a source begins loading\n this.one('ready', this.trackProgress);\n };\n\n /**\n * Turn off the polyfill for `progress` events that was created in\n * {@link Tech#manualProgressOn}\n */\n\n\n Tech.prototype.manualProgressOff = function manualProgressOff() {\n this.manualProgress = false;\n this.stopTrackingProgress();\n\n this.off('durationchange', this.onDurationChange);\n };\n\n /**\n * This is used to trigger a `progress` event when the buffered percent changes. It\n * sets an interval function that will be called every 500 milliseconds to check if the\n * buffer end percent has changed.\n *\n * > This function is called by {@link Tech#manualProgressOn}\n *\n * @param {EventTarget~Event} event\n * The `ready` event that caused this to run.\n *\n * @listens Tech#ready\n * @fires Tech#progress\n */\n\n\n Tech.prototype.trackProgress = function trackProgress(event) {\n this.stopTrackingProgress();\n this.progressInterval = this.setInterval(bind(this, function () {\n // Don't trigger unless buffered amount is greater than last time\n\n var numBufferedPercent = this.bufferedPercent();\n\n if (this.bufferedPercent_ !== numBufferedPercent) {\n /**\n * See {@link Player#progress}\n *\n * @event Tech#progress\n * @type {EventTarget~Event}\n */\n this.trigger('progress');\n }\n\n this.bufferedPercent_ = numBufferedPercent;\n\n if (numBufferedPercent === 1) {\n this.stopTrackingProgress();\n }\n }), 500);\n };\n\n /**\n * Update our internal duration on a `durationchange` event by calling\n * {@link Tech#duration}.\n *\n * @param {EventTarget~Event} event\n * The `durationchange` event that caused this to run.\n *\n * @listens Tech#durationchange\n */\n\n\n Tech.prototype.onDurationChange = function onDurationChange(event) {\n this.duration_ = this.duration();\n };\n\n /**\n * Get and create a `TimeRange` object for buffering.\n *\n * @return {TimeRange}\n * The time range object that was created.\n */\n\n\n Tech.prototype.buffered = function buffered() {\n return createTimeRanges(0, 0);\n };\n\n /**\n * Get the percentage of the current video that is currently buffered.\n *\n * @return {number}\n * A number from 0 to 1 that represents the decimal percentage of the\n * video that is buffered.\n *\n */\n\n\n Tech.prototype.bufferedPercent = function bufferedPercent$$1() {\n return bufferedPercent(this.buffered(), this.duration_);\n };\n\n /**\n * Turn off the polyfill for `progress` events that was created in\n * {@link Tech#manualProgressOn}\n * Stop manually tracking progress events by clearing the interval that was set in\n * {@link Tech#trackProgress}.\n */\n\n\n Tech.prototype.stopTrackingProgress = function stopTrackingProgress() {\n this.clearInterval(this.progressInterval);\n };\n\n /**\n * Polyfill the `timeupdate` event for browsers that don't support it.\n *\n * @see {@link Tech#trackCurrentTime}\n */\n\n\n Tech.prototype.manualTimeUpdatesOn = function manualTimeUpdatesOn() {\n this.manualTimeUpdates = true;\n\n this.on('play', this.trackCurrentTime);\n this.on('pause', this.stopTrackingCurrentTime);\n };\n\n /**\n * Turn off the polyfill for `timeupdate` events that was created in\n * {@link Tech#manualTimeUpdatesOn}\n */\n\n\n Tech.prototype.manualTimeUpdatesOff = function manualTimeUpdatesOff() {\n this.manualTimeUpdates = false;\n this.stopTrackingCurrentTime();\n this.off('play', this.trackCurrentTime);\n this.off('pause', this.stopTrackingCurrentTime);\n };\n\n /**\n * Sets up an interval function to track current time and trigger `timeupdate` every\n * 250 milliseconds.\n *\n * @listens Tech#play\n * @triggers Tech#timeupdate\n */\n\n\n Tech.prototype.trackCurrentTime = function trackCurrentTime() {\n if (this.currentTimeInterval) {\n this.stopTrackingCurrentTime();\n }\n this.currentTimeInterval = this.setInterval(function () {\n /**\n * Triggered at an interval of 250ms to indicated that time is passing in the video.\n *\n * @event Tech#timeupdate\n * @type {EventTarget~Event}\n */\n this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });\n\n // 42 = 24 fps // 250 is what Webkit uses // FF uses 15\n }, 250);\n };\n\n /**\n * Stop the interval function created in {@link Tech#trackCurrentTime} so that the\n * `timeupdate` event is no longer triggered.\n *\n * @listens {Tech#pause}\n */\n\n\n Tech.prototype.stopTrackingCurrentTime = function stopTrackingCurrentTime() {\n this.clearInterval(this.currentTimeInterval);\n\n // #1002 - if the video ends right before the next timeupdate would happen,\n // the progress bar won't make it all the way to the end\n this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });\n };\n\n /**\n * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},\n * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.\n *\n * @fires Component#dispose\n */\n\n\n Tech.prototype.dispose = function dispose() {\n\n // clear out all tracks because we can't reuse them between techs\n this.clearTracks(NORMAL.names);\n\n // Turn off any manual progress or timeupdate tracking\n if (this.manualProgress) {\n this.manualProgressOff();\n }\n\n if (this.manualTimeUpdates) {\n this.manualTimeUpdatesOff();\n }\n\n _Component.prototype.dispose.call(this);\n };\n\n /**\n * Clear out a single `TrackList` or an array of `TrackLists` given their names.\n *\n * > Note: Techs without source handlers should call this between sources for `video`\n * & `audio` tracks. You don't want to use them between tracks!\n *\n * @param {string[]|string} types\n * TrackList names to clear, valid names are `video`, `audio`, and\n * `text`.\n */\n\n\n Tech.prototype.clearTracks = function clearTracks(types) {\n var _this3 = this;\n\n types = [].concat(types);\n // clear out all tracks because we can't reuse them between techs\n types.forEach(function (type) {\n var list = _this3[type + 'Tracks']() || [];\n var i = list.length;\n\n while (i--) {\n var track = list[i];\n\n if (type === 'text') {\n _this3.removeRemoteTextTrack(track);\n }\n list.removeTrack(track);\n }\n });\n };\n\n /**\n * Remove any TextTracks added via addRemoteTextTrack that are\n * flagged for automatic garbage collection\n */\n\n\n Tech.prototype.cleanupAutoTextTracks = function cleanupAutoTextTracks() {\n var list = this.autoRemoteTextTracks_ || [];\n var i = list.length;\n\n while (i--) {\n var track = list[i];\n\n this.removeRemoteTextTrack(track);\n }\n };\n\n /**\n * Reset the tech, which will removes all sources and reset the internal readyState.\n *\n * @abstract\n */\n\n\n Tech.prototype.reset = function reset() {};\n\n /**\n * Get or set an error on the Tech.\n *\n * @param {MediaError} [err]\n * Error to set on the Tech\n *\n * @return {MediaError|null}\n * The current error object on the tech, or null if there isn't one.\n */\n\n\n Tech.prototype.error = function error(err) {\n if (err !== undefined) {\n this.error_ = new MediaError(err);\n this.trigger('error');\n }\n return this.error_;\n };\n\n /**\n * Returns the `TimeRange`s that have been played through for the current source.\n *\n * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.\n * It only checks wether the source has played at all or not.\n *\n * @return {TimeRange}\n * - A single time range if this video has played\n * - An empty set of ranges if not.\n */\n\n\n Tech.prototype.played = function played() {\n if (this.hasStarted_) {\n return createTimeRanges(0, 0);\n }\n return createTimeRanges();\n };\n\n /**\n * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was\n * previously called.\n *\n * @fires Tech#timeupdate\n */\n\n\n Tech.prototype.setCurrentTime = function setCurrentTime() {\n // improve the accuracy of manual timeupdates\n if (this.manualTimeUpdates) {\n /**\n * A manual `timeupdate` event.\n *\n * @event Tech#timeupdate\n * @type {EventTarget~Event}\n */\n this.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });\n }\n };\n\n /**\n * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and\n * {@link TextTrackList} events.\n *\n * This adds {@link EventTarget~EventListeners} for `addtrack`, and `removetrack`.\n *\n * @fires Tech#audiotrackchange\n * @fires Tech#videotrackchange\n * @fires Tech#texttrackchange\n */\n\n\n Tech.prototype.initTrackListeners = function initTrackListeners() {\n var _this4 = this;\n\n /**\n * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}\n *\n * @event Tech#audiotrackchange\n * @type {EventTarget~Event}\n */\n\n /**\n * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}\n *\n * @event Tech#videotrackchange\n * @type {EventTarget~Event}\n */\n\n /**\n * Triggered when tracks are added or removed on the Tech {@link TextTrackList}\n *\n * @event Tech#texttrackchange\n * @type {EventTarget~Event}\n */\n NORMAL.names.forEach(function (name) {\n var props = NORMAL[name];\n var trackListChanges = function trackListChanges() {\n _this4.trigger(name + 'trackchange');\n };\n\n var tracks = _this4[props.getterName]();\n\n tracks.addEventListener('removetrack', trackListChanges);\n tracks.addEventListener('addtrack', trackListChanges);\n\n _this4.on('dispose', function () {\n tracks.removeEventListener('removetrack', trackListChanges);\n tracks.removeEventListener('addtrack', trackListChanges);\n });\n });\n };\n\n /**\n * Emulate TextTracks using vtt.js if necessary\n *\n * @fires Tech#vttjsloaded\n * @fires Tech#vttjserror\n */\n\n\n Tech.prototype.addWebVttScript_ = function addWebVttScript_() {\n var _this5 = this;\n\n if (window.WebVTT) {\n return;\n }\n\n // Initially, Tech.el_ is a child of a dummy-div wait until the Component system\n // signals that the Tech is ready at which point Tech.el_ is part of the DOM\n // before inserting the WebVTT script\n if (document.body.contains(this.el())) {\n\n // load via require if available and vtt.js script location was not passed in\n // as an option. novtt builds will turn the above require call into an empty object\n // which will cause this if check to always fail.\n if (!this.options_['vtt.js'] && isPlain(vtt) && Object.keys(vtt).length > 0) {\n this.trigger('vttjsloaded');\n return;\n }\n\n // load vtt.js via the script location option or the cdn of no location was\n // passed in\n var script = document.createElement('script');\n\n script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.12.4/vtt.min.js';\n script.onload = function () {\n /**\n * Fired when vtt.js is loaded.\n *\n * @event Tech#vttjsloaded\n * @type {EventTarget~Event}\n */\n _this5.trigger('vttjsloaded');\n };\n script.onerror = function () {\n /**\n * Fired when vtt.js was not loaded due to an error\n *\n * @event Tech#vttjsloaded\n * @type {EventTarget~Event}\n */\n _this5.trigger('vttjserror');\n };\n this.on('dispose', function () {\n script.onload = null;\n script.onerror = null;\n });\n // but have not loaded yet and we set it to true before the inject so that\n // we don't overwrite the injected window.WebVTT if it loads right away\n window.WebVTT = true;\n this.el().parentNode.appendChild(script);\n } else {\n this.ready(this.addWebVttScript_);\n }\n };\n\n /**\n * Emulate texttracks\n *\n */\n\n\n Tech.prototype.emulateTextTracks = function emulateTextTracks() {\n var _this6 = this;\n\n var tracks = this.textTracks();\n var remoteTracks = this.remoteTextTracks();\n var handleAddTrack = function handleAddTrack(e) {\n return tracks.addTrack(e.track);\n };\n var handleRemoveTrack = function handleRemoveTrack(e) {\n return tracks.removeTrack(e.track);\n };\n\n remoteTracks.on('addtrack', handleAddTrack);\n remoteTracks.on('removetrack', handleRemoveTrack);\n\n this.addWebVttScript_();\n\n var updateDisplay = function updateDisplay() {\n return _this6.trigger('texttrackchange');\n };\n\n var textTracksChanges = function textTracksChanges() {\n updateDisplay();\n\n for (var i = 0; i < tracks.length; i++) {\n var track = tracks[i];\n\n track.removeEventListener('cuechange', updateDisplay);\n if (track.mode === 'showing') {\n track.addEventListener('cuechange', updateDisplay);\n }\n }\n };\n\n textTracksChanges();\n tracks.addEventListener('change', textTracksChanges);\n tracks.addEventListener('addtrack', textTracksChanges);\n tracks.addEventListener('removetrack', textTracksChanges);\n\n this.on('dispose', function () {\n remoteTracks.off('addtrack', handleAddTrack);\n remoteTracks.off('removetrack', handleRemoveTrack);\n tracks.removeEventListener('change', textTracksChanges);\n tracks.removeEventListener('addtrack', textTracksChanges);\n tracks.removeEventListener('removetrack', textTracksChanges);\n\n for (var i = 0; i < tracks.length; i++) {\n var track = tracks[i];\n\n track.removeEventListener('cuechange', updateDisplay);\n }\n });\n };\n\n /**\n * Create and returns a remote {@link TextTrack} object.\n *\n * @param {string} kind\n * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n *\n * @param {string} [label]\n * Label to identify the text track\n *\n * @param {string} [language]\n * Two letter language abbreviation\n *\n * @return {TextTrack}\n * The TextTrack that gets created.\n */\n\n\n Tech.prototype.addTextTrack = function addTextTrack(kind, label, language) {\n if (!kind) {\n throw new Error('TextTrack kind is required but was not provided');\n }\n\n return createTrackHelper(this, kind, label, language);\n };\n\n /**\n * Create an emulated TextTrack for use by addRemoteTextTrack\n *\n * This is intended to be overridden by classes that inherit from\n * Tech in order to create native or custom TextTracks.\n *\n * @param {Object} options\n * The object should contain the options to initialize the TextTrack with.\n *\n * @param {string} [options.kind]\n * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).\n *\n * @param {string} [options.label].\n * Label to identify the text track\n *\n * @param {string} [options.language]\n * Two letter language abbreviation.\n *\n * @return {HTMLTrackElement}\n * The track element that gets created.\n */\n\n\n Tech.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {\n var track = mergeOptions(options, {\n tech: this\n });\n\n return new REMOTE.remoteTextEl.TrackClass(track);\n };\n\n /**\n * Creates a remote text track object and returns an html track element.\n *\n * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.\n *\n * @param {Object} options\n * See {@link Tech#createRemoteTextTrack} for more detailed properties.\n *\n * @param {boolean} [manualCleanup=true]\n * - When false: the TextTrack will be automatically removed from the video\n * element whenever the source changes\n * - When True: The TextTrack will have to be cleaned up manually\n *\n * @return {HTMLTrackElement}\n * An Html Track Element.\n *\n * @deprecated The default functionality for this function will be equivalent\n * to \"manualCleanup=false\" in the future. The manualCleanup parameter will\n * also be removed.\n */\n\n\n Tech.prototype.addRemoteTextTrack = function addRemoteTextTrack() {\n var _this7 = this;\n\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n var manualCleanup = arguments[1];\n\n var htmlTrackElement = this.createRemoteTextTrack(options);\n\n if (manualCleanup !== true && manualCleanup !== false) {\n // deprecation warning\n log$1.warn('Calling addRemoteTextTrack without explicitly setting the \"manualCleanup\" parameter to `true` is deprecated and default to `false` in future version of video.js');\n manualCleanup = true;\n }\n\n // store HTMLTrackElement and TextTrack to remote list\n this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);\n this.remoteTextTracks().addTrack(htmlTrackElement.track);\n\n if (manualCleanup !== true) {\n // create the TextTrackList if it doesn't exist\n this.ready(function () {\n return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track);\n });\n }\n\n return htmlTrackElement;\n };\n\n /**\n * Remove a remote text track from the remote `TextTrackList`.\n *\n * @param {TextTrack} track\n * `TextTrack` to remove from the `TextTrackList`\n */\n\n\n Tech.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {\n var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track);\n\n // remove HTMLTrackElement and TextTrack from remote list\n this.remoteTextTrackEls().removeTrackElement_(trackElement);\n this.remoteTextTracks().removeTrack(track);\n this.autoRemoteTextTracks_.removeTrack(track);\n };\n\n /**\n * Gets available media playback quality metrics as specified by the W3C's Media\n * Playback Quality API.\n *\n * @see [Spec]{@link https://wicg.github.io/media-playback-quality}\n *\n * @return {Object}\n * An object with supported media playback quality metrics\n *\n * @abstract\n */\n\n\n Tech.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {\n return {};\n };\n\n /**\n * A method to set a poster from a `Tech`.\n *\n * @abstract\n */\n\n\n Tech.prototype.setPoster = function setPoster() {};\n\n /**\n * A method to check for the presence of the 'playsinine' <video> attribute.\n *\n * @abstract\n */\n\n\n Tech.prototype.playsinline = function playsinline() {};\n\n /**\n * A method to set or unset the 'playsinine' <video> attribute.\n *\n * @abstract\n */\n\n\n Tech.prototype.setPlaysinline = function setPlaysinline() {};\n\n /*\n * Check if the tech can support the given mime-type.\n *\n * The base tech does not support any type, but source handlers might\n * overwrite this.\n *\n * @param {string} type\n * The mimetype to check for support\n *\n * @return {string}\n * 'probably', 'maybe', or empty string\n *\n * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}\n *\n * @abstract\n */\n\n\n Tech.prototype.canPlayType = function canPlayType() {\n return '';\n };\n\n /**\n * Check if the type is supported by this tech.\n *\n * The base tech does not support any type, but source handlers might\n * overwrite this.\n *\n * @param {string} type\n * The media type to check\n * @return {string} Returns the native video element's response\n */\n\n\n Tech.canPlayType = function canPlayType() {\n return '';\n };\n\n /**\n * Check if the tech can support the given source\n * @param {Object} srcObj\n * The source object\n * @param {Object} options\n * The options passed to the tech\n * @return {string} 'probably', 'maybe', or '' (empty string)\n */\n\n\n Tech.canPlaySource = function canPlaySource(srcObj, options) {\n return Tech.canPlayType(srcObj.type);\n };\n\n /*\n * Return whether the argument is a Tech or not.\n * Can be passed either a Class like `Html5` or a instance like `player.tech_`\n *\n * @param {Object} component\n * The item to check\n *\n * @return {boolean}\n * Whether it is a tech or not\n * - True if it is a tech\n * - False if it is not\n */\n\n\n Tech.isTech = function isTech(component) {\n return component.prototype instanceof Tech || component instanceof Tech || component === Tech;\n };\n\n /**\n * Registers a `Tech` into a shared list for videojs.\n *\n * @param {string} name\n * Name of the `Tech` to register.\n *\n * @param {Object} tech\n * The `Tech` class to register.\n */\n\n\n Tech.registerTech = function registerTech(name, tech) {\n if (!Tech.techs_) {\n Tech.techs_ = {};\n }\n\n if (!Tech.isTech(tech)) {\n throw new Error('Tech ' + name + ' must be a Tech');\n }\n\n if (!Tech.canPlayType) {\n throw new Error('Techs must have a static canPlayType method on them');\n }\n if (!Tech.canPlaySource) {\n throw new Error('Techs must have a static canPlaySource method on them');\n }\n\n name = toTitleCase(name);\n\n Tech.techs_[name] = tech;\n if (name !== 'Tech') {\n // camel case the techName for use in techOrder\n Tech.defaultTechOrder_.push(name);\n }\n return tech;\n };\n\n /**\n * Get a `Tech` from the shared list by name.\n *\n * @param {string} name\n * `camelCase` or `TitleCase` name of the Tech to get\n *\n * @return {Tech|undefined}\n * The `Tech` or undefined if there was no tech with the name requsted.\n */\n\n\n Tech.getTech = function getTech(name) {\n if (!name) {\n return;\n }\n\n name = toTitleCase(name);\n\n if (Tech.techs_ && Tech.techs_[name]) {\n return Tech.techs_[name];\n }\n\n if (window && window.videojs && window.videojs[name]) {\n log$1.warn('The ' + name + ' tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)');\n return window.videojs[name];\n }\n };\n\n return Tech;\n}(Component);\n\n/**\n * Get the {@link VideoTrackList}\n *\n * @returns {VideoTrackList}\n * @method Tech.prototype.videoTracks\n */\n\n/**\n * Get the {@link AudioTrackList}\n *\n * @returns {AudioTrackList}\n * @method Tech.prototype.audioTracks\n */\n\n/**\n * Get the {@link TextTrackList}\n *\n * @returns {TextTrackList}\n * @method Tech.prototype.textTracks\n */\n\n/**\n * Get the remote element {@link TextTrackList}\n *\n * @returns {TextTrackList}\n * @method Tech.prototype.remoteTextTracks\n */\n\n/**\n * Get the remote element {@link HtmlTrackElementList}\n *\n * @returns {HtmlTrackElementList}\n * @method Tech.prototype.remoteTextTrackEls\n */\n\nALL.names.forEach(function (name) {\n var props = ALL[name];\n\n Tech.prototype[props.getterName] = function () {\n this[props.privateName] = this[props.privateName] || new props.ListClass();\n return this[props.privateName];\n };\n});\n\n/**\n * List of associated text tracks\n *\n * @type {TextTrackList}\n * @private\n * @property Tech#textTracks_\n */\n\n/**\n * List of associated audio tracks.\n *\n * @type {AudioTrackList}\n * @private\n * @property Tech#audioTracks_\n */\n\n/**\n * List of associated video tracks.\n *\n * @type {VideoTrackList}\n * @private\n * @property Tech#videoTracks_\n */\n\n/**\n * Boolean indicating wether the `Tech` supports volume control.\n *\n * @type {boolean}\n * @default\n */\nTech.prototype.featuresVolumeControl = true;\n\n/**\n * Boolean indicating whether the `Tech` supports muting volume.\n *\n * @type {bolean}\n * @default\n */\nTech.prototype.featuresMuteControl = true;\n\n/**\n * Boolean indicating whether the `Tech` supports fullscreen resize control.\n * Resizing plugins using request fullscreen reloads the plugin\n *\n * @type {boolean}\n * @default\n */\nTech.prototype.featuresFullscreenResize = false;\n\n/**\n * Boolean indicating wether the `Tech` supports changing the speed at which the video\n * plays. Examples:\n * - Set player to play 2x (twice) as fast\n * - Set player to play 0.5x (half) as fast\n *\n * @type {boolean}\n * @default\n */\nTech.prototype.featuresPlaybackRate = false;\n\n/**\n * Boolean indicating wether the `Tech` supports the `progress` event. This is currently\n * not triggered by video-js-swf. This will be used to determine if\n * {@link Tech#manualProgressOn} should be called.\n *\n * @type {boolean}\n * @default\n */\nTech.prototype.featuresProgressEvents = false;\n\n/**\n * Boolean indicating wether the `Tech` supports the `sourceset` event.\n *\n * A tech should set this to `true` and then use {@link Tech#triggerSourceset}\n * to trigger a {@link Tech#event:sourceset} at the earliest time after getting\n * a new source.\n *\n * @type {boolean}\n * @default\n */\nTech.prototype.featuresSourceset = false;\n\n/**\n * Boolean indicating wether the `Tech` supports the `timeupdate` event. This is currently\n * not triggered by video-js-swf. This will be used to determine if\n * {@link Tech#manualTimeUpdates} should be called.\n *\n * @type {boolean}\n * @default\n */\nTech.prototype.featuresTimeupdateEvents = false;\n\n/**\n * Boolean indicating wether the `Tech` supports the native `TextTrack`s.\n * This will help us integrate with native `TextTrack`s if the browser supports them.\n *\n * @type {boolean}\n * @default\n */\nTech.prototype.featuresNativeTextTracks = false;\n\n/**\n * A functional mixin for techs that want to use the Source Handler pattern.\n * Source handlers are scripts for handling specific formats.\n * The source handler pattern is used for adaptive formats (HLS, DASH) that\n * manually load video data and feed it into a Source Buffer (Media Source Extensions)\n * Example: `Tech.withSourceHandlers.call(MyTech);`\n *\n * @param {Tech} _Tech\n * The tech to add source handler functions to.\n *\n * @mixes Tech~SourceHandlerAdditions\n */\nTech.withSourceHandlers = function (_Tech) {\n\n /**\n * Register a source handler\n *\n * @param {Function} handler\n * The source handler class\n *\n * @param {number} [index]\n * Register it at the following index\n */\n _Tech.registerSourceHandler = function (handler, index) {\n var handlers = _Tech.sourceHandlers;\n\n if (!handlers) {\n handlers = _Tech.sourceHandlers = [];\n }\n\n if (index === undefined) {\n // add to the end of the list\n index = handlers.length;\n }\n\n handlers.splice(index, 0, handler);\n };\n\n /**\n * Check if the tech can support the given type. Also checks the\n * Techs sourceHandlers.\n *\n * @param {string} type\n * The mimetype to check.\n *\n * @return {string}\n * 'probably', 'maybe', or '' (empty string)\n */\n _Tech.canPlayType = function (type) {\n var handlers = _Tech.sourceHandlers || [];\n var can = void 0;\n\n for (var i = 0; i < handlers.length; i++) {\n can = handlers[i].canPlayType(type);\n\n if (can) {\n return can;\n }\n }\n\n return '';\n };\n\n /**\n * Returns the first source handler that supports the source.\n *\n * TODO: Answer question: should 'probably' be prioritized over 'maybe'\n *\n * @param {Tech~SourceObject} source\n * The source object\n *\n * @param {Object} options\n * The options passed to the tech\n *\n * @return {SourceHandler|null}\n * The first source handler that supports the source or null if\n * no SourceHandler supports the source\n */\n _Tech.selectSourceHandler = function (source, options) {\n var handlers = _Tech.sourceHandlers || [];\n var can = void 0;\n\n for (var i = 0; i < handlers.length; i++) {\n can = handlers[i].canHandleSource(source, options);\n\n if (can) {\n return handlers[i];\n }\n }\n\n return null;\n };\n\n /**\n * Check if the tech can support the given source.\n *\n * @param {Tech~SourceObject} srcObj\n * The source object\n *\n * @param {Object} options\n * The options passed to the tech\n *\n * @return {string}\n * 'probably', 'maybe', or '' (empty string)\n */\n _Tech.canPlaySource = function (srcObj, options) {\n var sh = _Tech.selectSourceHandler(srcObj, options);\n\n if (sh) {\n return sh.canHandleSource(srcObj, options);\n }\n\n return '';\n };\n\n /**\n * When using a source handler, prefer its implementation of\n * any function normally provided by the tech.\n */\n var deferrable = ['seekable', 'seeking', 'duration'];\n\n /**\n * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable\n * function if it exists, with a fallback to the Techs seekable function.\n *\n * @method _Tech.seekable\n */\n\n /**\n * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration\n * function if it exists, otherwise it will fallback to the techs duration function.\n *\n * @method _Tech.duration\n */\n\n deferrable.forEach(function (fnName) {\n var originalFn = this[fnName];\n\n if (typeof originalFn !== 'function') {\n return;\n }\n\n this[fnName] = function () {\n if (this.sourceHandler_ && this.sourceHandler_[fnName]) {\n return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);\n }\n return originalFn.apply(this, arguments);\n };\n }, _Tech.prototype);\n\n /**\n * Create a function for setting the source using a source object\n * and source handlers.\n * Should never be called unless a source handler was found.\n *\n * @param {Tech~SourceObject} source\n * A source object with src and type keys\n */\n _Tech.prototype.setSource = function (source) {\n var sh = _Tech.selectSourceHandler(source, this.options_);\n\n if (!sh) {\n // Fall back to a native source hander when unsupported sources are\n // deliberately set\n if (_Tech.nativeSourceHandler) {\n sh = _Tech.nativeSourceHandler;\n } else {\n log$1.error('No source hander found for the current source.');\n }\n }\n\n // Dispose any existing source handler\n this.disposeSourceHandler();\n this.off('dispose', this.disposeSourceHandler);\n\n if (sh !== _Tech.nativeSourceHandler) {\n this.currentSource_ = source;\n }\n\n this.sourceHandler_ = sh.handleSource(source, this, this.options_);\n this.on('dispose', this.disposeSourceHandler);\n };\n\n /**\n * Clean up any existing SourceHandlers and listeners when the Tech is disposed.\n *\n * @listens Tech#dispose\n */\n _Tech.prototype.disposeSourceHandler = function () {\n // if we have a source and get another one\n // then we are loading something new\n // than clear all of our current tracks\n if (this.currentSource_) {\n this.clearTracks(['audio', 'video']);\n this.currentSource_ = null;\n }\n\n // always clean up auto-text tracks\n this.cleanupAutoTextTracks();\n\n if (this.sourceHandler_) {\n\n if (this.sourceHandler_.dispose) {\n this.sourceHandler_.dispose();\n }\n\n this.sourceHandler_ = null;\n }\n };\n};\n\n// The base Tech class needs to be registered as a Component. It is the only\n// Tech that can be registered as a Component.\nComponent.registerComponent('Tech', Tech);\nTech.registerTech('Tech', Tech);\n\n/**\n * A list of techs that should be added to techOrder on Players\n *\n * @private\n */\nTech.defaultTechOrder_ = [];\n\nvar middlewares = {};\nvar middlewareInstances = {};\n\nvar TERMINATOR = {};\n\nfunction use(type, middleware) {\n middlewares[type] = middlewares[type] || [];\n middlewares[type].push(middleware);\n}\n\n\n\nfunction setSource(player, src, next) {\n player.setTimeout(function () {\n return setSourceHelper(src, middlewares[src.type], next, player);\n }, 1);\n}\n\nfunction setTech(middleware, tech) {\n middleware.forEach(function (mw) {\n return mw.setTech && mw.setTech(tech);\n });\n}\n\n/**\n * Calls a getter on the tech first, through each middleware\n * from right to left to the player.\n */\nfunction get$1(middleware, tech, method) {\n return middleware.reduceRight(middlewareIterator(method), tech[method]());\n}\n\n/**\n * Takes the argument given to the player and calls the setter method on each\n * middlware from left to right to the tech.\n */\nfunction set$1(middleware, tech, method, arg) {\n return tech[method](middleware.reduce(middlewareIterator(method), arg));\n}\n\n/**\n * Takes the argument given to the player and calls the `call` version of the method\n * on each middleware from left to right.\n * Then, call the passed in method on the tech and return the result unchanged\n * back to the player, through middleware, this time from right to left.\n */\nfunction mediate(middleware, tech, method) {\n var arg = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;\n\n var callMethod = 'call' + toTitleCase(method);\n var middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);\n var terminated = middlewareValue === TERMINATOR;\n var returnValue = terminated ? null : tech[method](middlewareValue);\n\n executeRight(middleware, method, returnValue, terminated);\n\n return returnValue;\n}\n\nvar allowedGetters = {\n buffered: 1,\n currentTime: 1,\n duration: 1,\n seekable: 1,\n played: 1,\n paused: 1\n};\n\nvar allowedSetters = {\n setCurrentTime: 1\n};\n\nvar allowedMediators = {\n play: 1,\n pause: 1\n};\n\nfunction middlewareIterator(method) {\n return function (value, mw) {\n // if the previous middleware terminated, pass along the termination\n if (value === TERMINATOR) {\n return TERMINATOR;\n }\n\n if (mw[method]) {\n return mw[method](value);\n }\n\n return value;\n };\n}\n\nfunction executeRight(mws, method, value, terminated) {\n for (var i = mws.length - 1; i >= 0; i--) {\n var mw = mws[i];\n\n if (mw[method]) {\n mw[method](terminated, value);\n }\n }\n}\n\nfunction clearCacheForPlayer(player) {\n middlewareInstances[player.id()] = null;\n}\n\n/**\n * {\n * [playerId]: [[mwFactory, mwInstance], ...]\n * }\n */\nfunction getOrCreateFactory(player, mwFactory) {\n var mws = middlewareInstances[player.id()];\n var mw = null;\n\n if (mws === undefined || mws === null) {\n mw = mwFactory(player);\n middlewareInstances[player.id()] = [[mwFactory, mw]];\n return mw;\n }\n\n for (var i = 0; i < mws.length; i++) {\n var _mws$i = mws[i],\n mwf = _mws$i[0],\n mwi = _mws$i[1];\n\n\n if (mwf !== mwFactory) {\n continue;\n }\n\n mw = mwi;\n }\n\n if (mw === null) {\n mw = mwFactory(player);\n mws.push([mwFactory, mw]);\n }\n\n return mw;\n}\n\nfunction setSourceHelper() {\n var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n var middleware = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];\n var next = arguments[2];\n var player = arguments[3];\n var acc = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : [];\n var lastRun = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : false;\n var mwFactory = middleware[0],\n mwrest = middleware.slice(1);\n\n // if mwFactory is a string, then we're at a fork in the road\n\n if (typeof mwFactory === 'string') {\n setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun);\n\n // if we have an mwFactory, call it with the player to get the mw,\n // then call the mw's setSource method\n } else if (mwFactory) {\n var mw = getOrCreateFactory(player, mwFactory);\n\n // if setSource isn't present, implicitly select this middleware\n if (!mw.setSource) {\n acc.push(mw);\n return setSourceHelper(src, mwrest, next, player, acc, lastRun);\n }\n\n mw.setSource(assign({}, src), function (err, _src) {\n\n // something happened, try the next middleware on the current level\n // make sure to use the old src\n if (err) {\n return setSourceHelper(src, mwrest, next, player, acc, lastRun);\n }\n\n // we've succeeded, now we need to go deeper\n acc.push(mw);\n\n // if it's the same type, continue down the current chain\n // otherwise, we want to go down the new chain\n setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);\n });\n } else if (mwrest.length) {\n setSourceHelper(src, mwrest, next, player, acc, lastRun);\n } else if (lastRun) {\n next(src, acc);\n } else {\n setSourceHelper(src, middlewares['*'], next, player, acc, true);\n }\n}\n\n/**\n * Mimetypes\n *\n * @see http://hul.harvard.edu/ois/////systems/wax/wax-public-help/mimetypes.htm\n * @typedef Mimetypes~Kind\n * @enum\n */\nvar MimetypesKind = {\n opus: 'video/ogg',\n ogv: 'video/ogg',\n mp4: 'video/mp4',\n mov: 'video/mp4',\n m4v: 'video/mp4',\n mkv: 'video/x-matroska',\n mp3: 'audio/mpeg',\n aac: 'audio/aac',\n oga: 'audio/ogg',\n m3u8: 'application/x-mpegURL'\n};\n\n/**\n * Get the mimetype of a given src url if possible\n *\n * @param {string} src\n * The url to the src\n *\n * @return {string}\n * return the mimetype if it was known or empty string otherwise\n */\nvar getMimetype = function getMimetype() {\n var src = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';\n\n var ext = getFileExtension(src);\n var mimetype = MimetypesKind[ext.toLowerCase()];\n\n return mimetype || '';\n};\n\n/**\n * Find the mime type of a given source string if possible. Uses the player\n * source cache.\n *\n * @param {Player} player\n * The player object\n *\n * @param {string} src\n * The source string\n *\n * @return {string}\n * The type that was found\n */\nvar findMimetype = function findMimetype(player, src) {\n if (!src) {\n return '';\n }\n\n // 1. check for the type in the `source` cache\n if (player.cache_.source.src === src && player.cache_.source.type) {\n return player.cache_.source.type;\n }\n\n // 2. see if we have this source in our `currentSources` cache\n var matchingSources = player.cache_.sources.filter(function (s) {\n return s.src === src;\n });\n\n if (matchingSources.length) {\n return matchingSources[0].type;\n }\n\n // 3. look for the src url in source elements and use the type there\n var sources = player.$$('source');\n\n for (var i = 0; i < sources.length; i++) {\n var s = sources[i];\n\n if (s.type && s.src && s.src === src) {\n return s.type;\n }\n }\n\n // 4. finally fallback to our list of mime types based on src url extension\n return getMimetype(src);\n};\n\n/**\n * @module filter-source\n */\n/**\n * Filter out single bad source objects or multiple source objects in an\n * array. Also flattens nested source object arrays into a 1 dimensional\n * array of source objects.\n *\n * @param {Tech~SourceObject|Tech~SourceObject[]} src\n * The src object to filter\n *\n * @return {Tech~SourceObject[]}\n * An array of sourceobjects containing only valid sources\n *\n * @private\n */\nvar filterSource = function filterSource(src) {\n // traverse array\n if (Array.isArray(src)) {\n var newsrc = [];\n\n src.forEach(function (srcobj) {\n srcobj = filterSource(srcobj);\n\n if (Array.isArray(srcobj)) {\n newsrc = newsrc.concat(srcobj);\n } else if (isObject(srcobj)) {\n newsrc.push(srcobj);\n }\n });\n\n src = newsrc;\n } else if (typeof src === 'string' && src.trim()) {\n // convert string into object\n src = [fixSource({ src: src })];\n } else if (isObject(src) && typeof src.src === 'string' && src.src && src.src.trim()) {\n // src is already valid\n src = [fixSource(src)];\n } else {\n // invalid source, turn it into an empty array\n src = [];\n }\n\n return src;\n};\n\n/**\n * Checks src mimetype, adding it when possible\n *\n * @param {Tech~SourceObject} src\n * The src object to check\n * @return {Tech~SourceObject}\n * src Object with known type\n */\nfunction fixSource(src) {\n var mimetype = getMimetype(src.src);\n\n if (!src.type && mimetype) {\n src.type = mimetype;\n }\n\n return src;\n}\n\n/**\n * @file loader.js\n */\n/**\n * The `MediaLoader` is the `Component` that decides which playback technology to load\n * when a player is initialized.\n *\n * @extends Component\n */\n\nvar MediaLoader = function (_Component) {\n inherits(MediaLoader, _Component);\n\n /**\n * Create an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should attach to.\n *\n * @param {Object} [options]\n * The key/value stroe of player options.\n *\n * @param {Component~ReadyCallback} [ready]\n * The function that is run when this component is ready.\n */\n function MediaLoader(player, options, ready) {\n classCallCheck(this, MediaLoader);\n\n // MediaLoader has no element\n var options_ = mergeOptions({ createEl: false }, options);\n\n // If there are no sources when the player is initialized,\n // load the first supported playback technology.\n\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options_, ready));\n\n if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {\n for (var i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {\n var techName = toTitleCase(j[i]);\n var tech = Tech.getTech(techName);\n\n // Support old behavior of techs being registered as components.\n // Remove once that deprecated behavior is removed.\n if (!techName) {\n tech = Component.getComponent(techName);\n }\n\n // Check if the browser supports this technology\n if (tech && tech.isSupported()) {\n player.loadTech_(techName);\n break;\n }\n }\n } else {\n // Loop through playback technologies (HTML5, Flash) and check for support.\n // Then load the best source.\n // A few assumptions here:\n // All playback technologies respect preload false.\n player.src(options.playerOptions.sources);\n }\n return _this;\n }\n\n return MediaLoader;\n}(Component);\n\nComponent.registerComponent('MediaLoader', MediaLoader);\n\n/**\n * @file button.js\n */\n/**\n * Clickable Component which is clickable or keyboard actionable,\n * but is not a native HTML button.\n *\n * @extends Component\n */\n\nvar ClickableComponent = function (_Component) {\n inherits(ClickableComponent, _Component);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function ClickableComponent(player, options) {\n classCallCheck(this, ClickableComponent);\n\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options));\n\n _this.emitTapEvents();\n\n _this.enable();\n return _this;\n }\n\n /**\n * Create the `Component`s DOM element.\n *\n * @param {string} [tag=div]\n * The element's node type.\n *\n * @param {Object} [props={}]\n * An object of properties that should be set on the element.\n *\n * @param {Object} [attributes={}]\n * An object of attributes that should be set on the element.\n *\n * @return {Element}\n * The element that gets created.\n */\n\n\n ClickableComponent.prototype.createEl = function createEl$$1() {\n var tag = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 'div';\n var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n props = assign({\n innerHTML: '<span aria-hidden=\"true\" class=\"vjs-icon-placeholder\"></span>',\n className: this.buildCSSClass(),\n tabIndex: 0\n }, props);\n\n if (tag === 'button') {\n log$1.error('Creating a ClickableComponent with an HTML element of ' + tag + ' is not supported; use a Button instead.');\n }\n\n // Add ARIA attributes for clickable element which is not a native HTML button\n attributes = assign({\n role: 'button'\n }, attributes);\n\n this.tabIndex_ = props.tabIndex;\n\n var el = _Component.prototype.createEl.call(this, tag, props, attributes);\n\n this.createControlTextEl(el);\n\n return el;\n };\n\n ClickableComponent.prototype.dispose = function dispose() {\n // remove controlTextEl_ on dipose\n this.controlTextEl_ = null;\n\n _Component.prototype.dispose.call(this);\n };\n\n /**\n * Create a control text element on this `Component`\n *\n * @param {Element} [el]\n * Parent element for the control text.\n *\n * @return {Element}\n * The control text element that gets created.\n */\n\n\n ClickableComponent.prototype.createControlTextEl = function createControlTextEl(el) {\n this.controlTextEl_ = createEl('span', {\n className: 'vjs-control-text'\n }, {\n // let the screen reader user know that the text of the element may change\n 'aria-live': 'polite'\n });\n\n if (el) {\n el.appendChild(this.controlTextEl_);\n }\n\n this.controlText(this.controlText_, el);\n\n return this.controlTextEl_;\n };\n\n /**\n * Get or set the localize text to use for the controls on the `Component`.\n *\n * @param {string} [text]\n * Control text for element.\n *\n * @param {Element} [el=this.el()]\n * Element to set the title on.\n *\n * @return {string}\n * - The control text when getting\n */\n\n\n ClickableComponent.prototype.controlText = function controlText(text) {\n var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.el();\n\n if (text === undefined) {\n return this.controlText_ || 'Need Text';\n }\n\n var localizedText = this.localize(text);\n\n this.controlText_ = text;\n textContent(this.controlTextEl_, localizedText);\n if (!this.nonIconControl) {\n // Set title attribute if only an icon is shown\n el.setAttribute('title', localizedText);\n }\n };\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n ClickableComponent.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-control vjs-button ' + _Component.prototype.buildCSSClass.call(this);\n };\n\n /**\n * Enable this `Component`s element.\n */\n\n\n ClickableComponent.prototype.enable = function enable() {\n if (!this.enabled_) {\n this.enabled_ = true;\n this.removeClass('vjs-disabled');\n this.el_.setAttribute('aria-disabled', 'false');\n if (typeof this.tabIndex_ !== 'undefined') {\n this.el_.setAttribute('tabIndex', this.tabIndex_);\n }\n this.on(['tap', 'click'], this.handleClick);\n this.on('focus', this.handleFocus);\n this.on('blur', this.handleBlur);\n }\n };\n\n /**\n * Disable this `Component`s element.\n */\n\n\n ClickableComponent.prototype.disable = function disable() {\n this.enabled_ = false;\n this.addClass('vjs-disabled');\n this.el_.setAttribute('aria-disabled', 'true');\n if (typeof this.tabIndex_ !== 'undefined') {\n this.el_.removeAttribute('tabIndex');\n }\n this.off(['tap', 'click'], this.handleClick);\n this.off('focus', this.handleFocus);\n this.off('blur', this.handleBlur);\n };\n\n /**\n * This gets called when a `ClickableComponent` gets:\n * - Clicked (via the `click` event, listening starts in the constructor)\n * - Tapped (via the `tap` event, listening starts in the constructor)\n * - The following things happen in order:\n * 1. {@link ClickableComponent#handleFocus} is called via a `focus` event on the\n * `ClickableComponent`.\n * 2. {@link ClickableComponent#handleFocus} adds a listener for `keydown` on using\n * {@link ClickableComponent#handleKeyPress}.\n * 3. `ClickableComponent` has not had a `blur` event (`blur` means that focus was lost). The user presses\n * the space or enter key.\n * 4. {@link ClickableComponent#handleKeyPress} calls this function with the `keydown`\n * event as a parameter.\n *\n * @param {EventTarget~Event} event\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n * @abstract\n */\n\n\n ClickableComponent.prototype.handleClick = function handleClick(event) {};\n\n /**\n * This gets called when a `ClickableComponent` gains focus via a `focus` event.\n * Turns on listening for `keydown` events. When they happen it\n * calls `this.handleKeyPress`.\n *\n * @param {EventTarget~Event} event\n * The `focus` event that caused this function to be called.\n *\n * @listens focus\n */\n\n\n ClickableComponent.prototype.handleFocus = function handleFocus(event) {\n on(document, 'keydown', bind(this, this.handleKeyPress));\n };\n\n /**\n * Called when this ClickableComponent has focus and a key gets pressed down. By\n * default it will call `this.handleClick` when the key is space or enter.\n *\n * @param {EventTarget~Event} event\n * The `keydown` event that caused this function to be called.\n *\n * @listens keydown\n */\n\n\n ClickableComponent.prototype.handleKeyPress = function handleKeyPress(event) {\n\n // Support Space (32) or Enter (13) key operation to fire a click event\n if (event.which === 32 || event.which === 13) {\n event.preventDefault();\n this.trigger('click');\n } else if (_Component.prototype.handleKeyPress) {\n\n // Pass keypress handling up for unsupported keys\n _Component.prototype.handleKeyPress.call(this, event);\n }\n };\n\n /**\n * Called when a `ClickableComponent` loses focus. Turns off the listener for\n * `keydown` events. Which Stops `this.handleKeyPress` from getting called.\n *\n * @param {EventTarget~Event} event\n * The `blur` event that caused this function to be called.\n *\n * @listens blur\n */\n\n\n ClickableComponent.prototype.handleBlur = function handleBlur(event) {\n off(document, 'keydown', bind(this, this.handleKeyPress));\n };\n\n return ClickableComponent;\n}(Component);\n\nComponent.registerComponent('ClickableComponent', ClickableComponent);\n\n/**\n * @file poster-image.js\n */\n/**\n * A `ClickableComponent` that handles showing the poster image for the player.\n *\n * @extends ClickableComponent\n */\n\nvar PosterImage = function (_ClickableComponent) {\n inherits(PosterImage, _ClickableComponent);\n\n /**\n * Create an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should attach to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function PosterImage(player, options) {\n classCallCheck(this, PosterImage);\n\n var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));\n\n _this.update();\n player.on('posterchange', bind(_this, _this.update));\n return _this;\n }\n\n /**\n * Clean up and dispose of the `PosterImage`.\n */\n\n\n PosterImage.prototype.dispose = function dispose() {\n this.player().off('posterchange', this.update);\n _ClickableComponent.prototype.dispose.call(this);\n };\n\n /**\n * Create the `PosterImage`s DOM element.\n *\n * @return {Element}\n * The element that gets created.\n */\n\n\n PosterImage.prototype.createEl = function createEl$$1() {\n var el = createEl('div', {\n className: 'vjs-poster',\n\n // Don't want poster to be tabbable.\n tabIndex: -1\n });\n\n // To ensure the poster image resizes while maintaining its original aspect\n // ratio, use a div with `background-size` when available. For browsers that\n // do not support `background-size` (e.g. IE8), fall back on using a regular\n // img element.\n if (!BACKGROUND_SIZE_SUPPORTED) {\n this.fallbackImg_ = createEl('img');\n el.appendChild(this.fallbackImg_);\n }\n\n return el;\n };\n\n /**\n * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.\n *\n * @listens Player#posterchange\n *\n * @param {EventTarget~Event} [event]\n * The `Player#posterchange` event that triggered this function.\n */\n\n\n PosterImage.prototype.update = function update(event) {\n var url = this.player().poster();\n\n this.setSrc(url);\n\n // If there's no poster source we should display:none on this component\n // so it's not still clickable or right-clickable\n if (url) {\n this.show();\n } else {\n this.hide();\n }\n };\n\n /**\n * Set the source of the `PosterImage` depending on the display method.\n *\n * @param {string} url\n * The URL to the source for the `PosterImage`.\n */\n\n\n PosterImage.prototype.setSrc = function setSrc(url) {\n if (this.fallbackImg_) {\n this.fallbackImg_.src = url;\n } else {\n var backgroundImage = '';\n\n // Any falsey values should stay as an empty string, otherwise\n // this will throw an extra error\n if (url) {\n backgroundImage = 'url(\"' + url + '\")';\n }\n\n this.el_.style.backgroundImage = backgroundImage;\n }\n };\n\n /**\n * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See\n * {@link ClickableComponent#handleClick} for instances where this will be triggered.\n *\n * @listens tap\n * @listens click\n * @listens keydown\n *\n * @param {EventTarget~Event} event\n + The `click`, `tap` or `keydown` event that caused this function to be called.\n */\n\n\n PosterImage.prototype.handleClick = function handleClick(event) {\n // We don't want a click to trigger playback when controls are disabled\n if (!this.player_.controls()) {\n return;\n }\n\n if (this.player_.paused()) {\n silencePromise(this.player_.play());\n } else {\n this.player_.pause();\n }\n };\n\n return PosterImage;\n}(ClickableComponent);\n\nComponent.registerComponent('PosterImage', PosterImage);\n\n/**\n * @file text-track-display.js\n */\nvar darkGray = '#222';\nvar lightGray = '#ccc';\nvar fontMap = {\n monospace: 'monospace',\n sansSerif: 'sans-serif',\n serif: 'serif',\n monospaceSansSerif: '\"Andale Mono\", \"Lucida Console\", monospace',\n monospaceSerif: '\"Courier New\", monospace',\n proportionalSansSerif: 'sans-serif',\n proportionalSerif: 'serif',\n casual: '\"Comic Sans MS\", Impact, fantasy',\n script: '\"Monotype Corsiva\", cursive',\n smallcaps: '\"Andale Mono\", \"Lucida Console\", monospace, sans-serif'\n};\n\n/**\n * Construct an rgba color from a given hex color code.\n *\n * @param {number} color\n * Hex number for color, like #f0e or #f604e2.\n *\n * @param {number} opacity\n * Value for opacity, 0.0 - 1.0.\n *\n * @return {string}\n * The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.\n */\nfunction constructColor(color, opacity) {\n var hex = void 0;\n\n if (color.length === 4) {\n // color looks like \"#f0e\"\n hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];\n } else if (color.length === 7) {\n // color looks like \"#f604e2\"\n hex = color.slice(1);\n } else {\n throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');\n }\n return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';\n}\n\n/**\n * Try to update the style of a DOM element. Some style changes will throw an error,\n * particularly in IE8. Those should be noops.\n *\n * @param {Element} el\n * The DOM element to be styled.\n *\n * @param {string} style\n * The CSS property on the element that should be styled.\n *\n * @param {string} rule\n * The style rule that should be applied to the property.\n *\n * @private\n */\nfunction tryUpdateStyle(el, style, rule) {\n try {\n el.style[style] = rule;\n } catch (e) {\n\n // Satisfies linter.\n return;\n }\n}\n\n/**\n * The component for displaying text track cues.\n *\n * @extends Component\n */\n\nvar TextTrackDisplay = function (_Component) {\n inherits(TextTrackDisplay, _Component);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n *\n * @param {Component~ReadyCallback} [ready]\n * The function to call when `TextTrackDisplay` is ready.\n */\n function TextTrackDisplay(player, options, ready) {\n classCallCheck(this, TextTrackDisplay);\n\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options, ready));\n\n player.on('loadstart', bind(_this, _this.toggleDisplay));\n player.on('texttrackchange', bind(_this, _this.updateDisplay));\n player.on('loadstart', bind(_this, _this.preselectTrack));\n\n // This used to be called during player init, but was causing an error\n // if a track should show by default and the display hadn't loaded yet.\n // Should probably be moved to an external track loader when we support\n // tracks that don't need a display.\n player.ready(bind(_this, function () {\n if (player.tech_ && player.tech_.featuresNativeTextTracks) {\n this.hide();\n return;\n }\n\n player.on('fullscreenchange', bind(this, this.updateDisplay));\n\n var tracks = this.options_.playerOptions.tracks || [];\n\n for (var i = 0; i < tracks.length; i++) {\n this.player_.addRemoteTextTrack(tracks[i], true);\n }\n\n this.preselectTrack();\n }));\n return _this;\n }\n\n /**\n * Preselect a track following this precedence:\n * - matches the previously selected {@link TextTrack}'s language and kind\n * - matches the previously selected {@link TextTrack}'s language only\n * - is the first default captions track\n * - is the first default descriptions track\n *\n * @listens Player#loadstart\n */\n\n\n TextTrackDisplay.prototype.preselectTrack = function preselectTrack() {\n var modes = { captions: 1, subtitles: 1 };\n var trackList = this.player_.textTracks();\n var userPref = this.player_.cache_.selectedLanguage;\n var firstDesc = void 0;\n var firstCaptions = void 0;\n var preferredTrack = void 0;\n\n for (var i = 0; i < trackList.length; i++) {\n var track = trackList[i];\n\n if (userPref && userPref.enabled && userPref.language === track.language) {\n // Always choose the track that matches both language and kind\n if (track.kind === userPref.kind) {\n preferredTrack = track;\n // or choose the first track that matches language\n } else if (!preferredTrack) {\n preferredTrack = track;\n }\n\n // clear everything if offTextTrackMenuItem was clicked\n } else if (userPref && !userPref.enabled) {\n preferredTrack = null;\n firstDesc = null;\n firstCaptions = null;\n } else if (track['default']) {\n if (track.kind === 'descriptions' && !firstDesc) {\n firstDesc = track;\n } else if (track.kind in modes && !firstCaptions) {\n firstCaptions = track;\n }\n }\n }\n\n // The preferredTrack matches the user preference and takes\n // precendence over all the other tracks.\n // So, display the preferredTrack before the first default track\n // and the subtitles/captions track before the descriptions track\n if (preferredTrack) {\n preferredTrack.mode = 'showing';\n } else if (firstCaptions) {\n firstCaptions.mode = 'showing';\n } else if (firstDesc) {\n firstDesc.mode = 'showing';\n }\n };\n\n /**\n * Turn display of {@link TextTrack}'s from the current state into the other state.\n * There are only two states:\n * - 'shown'\n * - 'hidden'\n *\n * @listens Player#loadstart\n */\n\n\n TextTrackDisplay.prototype.toggleDisplay = function toggleDisplay() {\n if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {\n this.hide();\n } else {\n this.show();\n }\n };\n\n /**\n * Create the {@link Component}'s DOM element.\n *\n * @return {Element}\n * The element that was created.\n */\n\n\n TextTrackDisplay.prototype.createEl = function createEl() {\n return _Component.prototype.createEl.call(this, 'div', {\n className: 'vjs-text-track-display'\n }, {\n 'aria-live': 'off',\n 'aria-atomic': 'true'\n });\n };\n\n /**\n * Clear all displayed {@link TextTrack}s.\n */\n\n\n TextTrackDisplay.prototype.clearDisplay = function clearDisplay() {\n if (typeof window.WebVTT === 'function') {\n window.WebVTT.processCues(window, [], this.el_);\n }\n };\n\n /**\n * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or\n * a {@link Player#fullscreenchange} is fired.\n *\n * @listens Player#texttrackchange\n * @listens Player#fullscreenchange\n */\n\n\n TextTrackDisplay.prototype.updateDisplay = function updateDisplay() {\n var tracks = this.player_.textTracks();\n\n this.clearDisplay();\n\n // Track display prioritization model: if multiple tracks are 'showing',\n // display the first 'subtitles' or 'captions' track which is 'showing',\n // otherwise display the first 'descriptions' track which is 'showing'\n\n var descriptionsTrack = null;\n var captionsSubtitlesTrack = null;\n var i = tracks.length;\n\n while (i--) {\n var track = tracks[i];\n\n if (track.mode === 'showing') {\n if (track.kind === 'descriptions') {\n descriptionsTrack = track;\n } else {\n captionsSubtitlesTrack = track;\n }\n }\n }\n\n if (captionsSubtitlesTrack) {\n if (this.getAttribute('aria-live') !== 'off') {\n this.setAttribute('aria-live', 'off');\n }\n this.updateForTrack(captionsSubtitlesTrack);\n } else if (descriptionsTrack) {\n if (this.getAttribute('aria-live') !== 'assertive') {\n this.setAttribute('aria-live', 'assertive');\n }\n this.updateForTrack(descriptionsTrack);\n }\n };\n\n /**\n * Add an {@link Texttrack} to to the {@link Tech}s {@link TextTrackList}.\n *\n * @param {TextTrack} track\n * Text track object to be added to the list.\n */\n\n\n TextTrackDisplay.prototype.updateForTrack = function updateForTrack(track) {\n if (typeof window.WebVTT !== 'function' || !track.activeCues) {\n return;\n }\n\n var cues = [];\n\n for (var _i = 0; _i < track.activeCues.length; _i++) {\n cues.push(track.activeCues[_i]);\n }\n\n window.WebVTT.processCues(window, cues, this.el_);\n\n if (!this.player_.textTrackSettings) {\n return;\n }\n\n var overrides = this.player_.textTrackSettings.getValues();\n\n var i = cues.length;\n\n while (i--) {\n var cue = cues[i];\n\n if (!cue) {\n continue;\n }\n\n var cueDiv = cue.displayState;\n\n if (overrides.color) {\n cueDiv.firstChild.style.color = overrides.color;\n }\n if (overrides.textOpacity) {\n tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));\n }\n if (overrides.backgroundColor) {\n cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;\n }\n if (overrides.backgroundOpacity) {\n tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));\n }\n if (overrides.windowColor) {\n if (overrides.windowOpacity) {\n tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));\n } else {\n cueDiv.style.backgroundColor = overrides.windowColor;\n }\n }\n if (overrides.edgeStyle) {\n if (overrides.edgeStyle === 'dropshadow') {\n cueDiv.firstChild.style.textShadow = '2px 2px 3px ' + darkGray + ', 2px 2px 4px ' + darkGray + ', 2px 2px 5px ' + darkGray;\n } else if (overrides.edgeStyle === 'raised') {\n cueDiv.firstChild.style.textShadow = '1px 1px ' + darkGray + ', 2px 2px ' + darkGray + ', 3px 3px ' + darkGray;\n } else if (overrides.edgeStyle === 'depressed') {\n cueDiv.firstChild.style.textShadow = '1px 1px ' + lightGray + ', 0 1px ' + lightGray + ', -1px -1px ' + darkGray + ', 0 -1px ' + darkGray;\n } else if (overrides.edgeStyle === 'uniform') {\n cueDiv.firstChild.style.textShadow = '0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray;\n }\n }\n if (overrides.fontPercent && overrides.fontPercent !== 1) {\n var fontSize = window.parseFloat(cueDiv.style.fontSize);\n\n cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';\n cueDiv.style.height = 'auto';\n cueDiv.style.top = 'auto';\n cueDiv.style.bottom = '2px';\n }\n if (overrides.fontFamily && overrides.fontFamily !== 'default') {\n if (overrides.fontFamily === 'small-caps') {\n cueDiv.firstChild.style.fontVariant = 'small-caps';\n } else {\n cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];\n }\n }\n }\n };\n\n return TextTrackDisplay;\n}(Component);\n\nComponent.registerComponent('TextTrackDisplay', TextTrackDisplay);\n\n/**\n * @file loading-spinner.js\n */\n/**\n * A loading spinner for use during waiting/loading events.\n *\n * @extends Component\n */\n\nvar LoadingSpinner = function (_Component) {\n inherits(LoadingSpinner, _Component);\n\n function LoadingSpinner() {\n classCallCheck(this, LoadingSpinner);\n return possibleConstructorReturn(this, _Component.apply(this, arguments));\n }\n\n /**\n * Create the `LoadingSpinner`s DOM element.\n *\n * @return {Element}\n * The dom element that gets created.\n */\n LoadingSpinner.prototype.createEl = function createEl$$1() {\n var isAudio = this.player_.isAudio();\n var playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');\n var controlText = createEl('span', {\n className: 'vjs-control-text',\n innerHTML: this.localize('{1} is loading.', [playerType])\n });\n\n var el = _Component.prototype.createEl.call(this, 'div', {\n className: 'vjs-loading-spinner',\n dir: 'ltr'\n });\n\n el.appendChild(controlText);\n\n return el;\n };\n\n return LoadingSpinner;\n}(Component);\n\nComponent.registerComponent('LoadingSpinner', LoadingSpinner);\n\n/**\n * @file button.js\n */\n/**\n * Base class for all buttons.\n *\n * @extends ClickableComponent\n */\n\nvar Button = function (_ClickableComponent) {\n inherits(Button, _ClickableComponent);\n\n function Button() {\n classCallCheck(this, Button);\n return possibleConstructorReturn(this, _ClickableComponent.apply(this, arguments));\n }\n\n /**\n * Create the `Button`s DOM element.\n *\n * @param {string} [tag=\"button\"]\n * The element's node type. This argument is IGNORED: no matter what\n * is passed, it will always create a `button` element.\n *\n * @param {Object} [props={}]\n * An object of properties that should be set on the element.\n *\n * @param {Object} [attributes={}]\n * An object of attributes that should be set on the element.\n *\n * @return {Element}\n * The element that gets created.\n */\n Button.prototype.createEl = function createEl(tag) {\n var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n tag = 'button';\n\n props = assign({\n innerHTML: '<span aria-hidden=\"true\" class=\"vjs-icon-placeholder\"></span>',\n className: this.buildCSSClass()\n }, props);\n\n // Add attributes for button element\n attributes = assign({\n\n // Necessary since the default button type is \"submit\"\n type: 'button'\n }, attributes);\n\n var el = Component.prototype.createEl.call(this, tag, props, attributes);\n\n this.createControlTextEl(el);\n\n return el;\n };\n\n /**\n * Add a child `Component` inside of this `Button`.\n *\n * @param {string|Component} child\n * The name or instance of a child to add.\n *\n * @param {Object} [options={}]\n * The key/value store of options that will get passed to children of\n * the child.\n *\n * @return {Component}\n * The `Component` that gets added as a child. When using a string the\n * `Component` will get created by this process.\n *\n * @deprecated since version 5\n */\n\n\n Button.prototype.addChild = function addChild(child) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var className = this.constructor.name;\n\n log$1.warn('Adding an actionable (user controllable) child to a Button (' + className + ') is not supported; use a ClickableComponent instead.');\n\n // Avoid the error message generated by ClickableComponent's addChild method\n return Component.prototype.addChild.call(this, child, options);\n };\n\n /**\n * Enable the `Button` element so that it can be activated or clicked. Use this with\n * {@link Button#disable}.\n */\n\n\n Button.prototype.enable = function enable() {\n _ClickableComponent.prototype.enable.call(this);\n this.el_.removeAttribute('disabled');\n };\n\n /**\n * Disable the `Button` element so that it cannot be activated or clicked. Use this with\n * {@link Button#enable}.\n */\n\n\n Button.prototype.disable = function disable() {\n _ClickableComponent.prototype.disable.call(this);\n this.el_.setAttribute('disabled', 'disabled');\n };\n\n /**\n * This gets called when a `Button` has focus and `keydown` is triggered via a key\n * press.\n *\n * @param {EventTarget~Event} event\n * The event that caused this function to get called.\n *\n * @listens keydown\n */\n\n\n Button.prototype.handleKeyPress = function handleKeyPress(event) {\n\n // Ignore Space (32) or Enter (13) key operation, which is handled by the browser for a button.\n if (event.which === 32 || event.which === 13) {\n return;\n }\n\n // Pass keypress handling up for unsupported keys\n _ClickableComponent.prototype.handleKeyPress.call(this, event);\n };\n\n return Button;\n}(ClickableComponent);\n\nComponent.registerComponent('Button', Button);\n\n/**\n * @file big-play-button.js\n */\n/**\n * The initial play button that shows before the video has played. The hiding of the\n * `BigPlayButton` get done via CSS and `Player` states.\n *\n * @extends Button\n */\n\nvar BigPlayButton = function (_Button) {\n inherits(BigPlayButton, _Button);\n\n function BigPlayButton(player, options) {\n classCallCheck(this, BigPlayButton);\n\n var _this = possibleConstructorReturn(this, _Button.call(this, player, options));\n\n _this.mouseused_ = false;\n\n _this.on('mousedown', _this.handleMouseDown);\n return _this;\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object. Always returns 'vjs-big-play-button'.\n */\n\n\n BigPlayButton.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-big-play-button';\n };\n\n /**\n * This gets called when a `BigPlayButton` \"clicked\". See {@link ClickableComponent}\n * for more detailed information on what a click can be.\n *\n * @param {EventTarget~Event} event\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n */\n\n\n BigPlayButton.prototype.handleClick = function handleClick(event) {\n var playPromise = this.player_.play();\n\n // exit early if clicked via the mouse\n if (this.mouseused_ && event.clientX && event.clientY) {\n silencePromise(playPromise);\n return;\n }\n\n var cb = this.player_.getChild('controlBar');\n var playToggle = cb && cb.getChild('playToggle');\n\n if (!playToggle) {\n this.player_.focus();\n return;\n }\n\n var playFocus = function playFocus() {\n return playToggle.focus();\n };\n\n if (isPromise(playPromise)) {\n playPromise.then(playFocus, function () {});\n } else {\n this.setTimeout(playFocus, 1);\n }\n };\n\n BigPlayButton.prototype.handleKeyPress = function handleKeyPress(event) {\n this.mouseused_ = false;\n\n _Button.prototype.handleKeyPress.call(this, event);\n };\n\n BigPlayButton.prototype.handleMouseDown = function handleMouseDown(event) {\n this.mouseused_ = true;\n };\n\n return BigPlayButton;\n}(Button);\n\n/**\n * The text that should display over the `BigPlayButton`s controls. Added to for localization.\n *\n * @type {string}\n * @private\n */\n\n\nBigPlayButton.prototype.controlText_ = 'Play Video';\n\nComponent.registerComponent('BigPlayButton', BigPlayButton);\n\n/**\n * @file close-button.js\n */\n/**\n * The `CloseButton` is a `{@link Button}` that fires a `close` event when\n * it gets clicked.\n *\n * @extends Button\n */\n\nvar CloseButton = function (_Button) {\n inherits(CloseButton, _Button);\n\n /**\n * Creates an instance of the this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function CloseButton(player, options) {\n classCallCheck(this, CloseButton);\n\n var _this = possibleConstructorReturn(this, _Button.call(this, player, options));\n\n _this.controlText(options && options.controlText || _this.localize('Close'));\n return _this;\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n CloseButton.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-close-button ' + _Button.prototype.buildCSSClass.call(this);\n };\n\n /**\n * This gets called when a `CloseButton` gets clicked. See\n * {@link ClickableComponent#handleClick} for more information on when this will be\n * triggered\n *\n * @param {EventTarget~Event} event\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n * @fires CloseButton#close\n */\n\n\n CloseButton.prototype.handleClick = function handleClick(event) {\n\n /**\n * Triggered when the a `CloseButton` is clicked.\n *\n * @event CloseButton#close\n * @type {EventTarget~Event}\n *\n * @property {boolean} [bubbles=false]\n * set to false so that the close event does not\n * bubble up to parents if there is no listener\n */\n this.trigger({ type: 'close', bubbles: false });\n };\n\n return CloseButton;\n}(Button);\n\nComponent.registerComponent('CloseButton', CloseButton);\n\n/**\n * @file play-toggle.js\n */\n/**\n * Button to toggle between play and pause.\n *\n * @extends Button\n */\n\nvar PlayToggle = function (_Button) {\n inherits(PlayToggle, _Button);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function PlayToggle(player, options) {\n classCallCheck(this, PlayToggle);\n\n var _this = possibleConstructorReturn(this, _Button.call(this, player, options));\n\n _this.on(player, 'play', _this.handlePlay);\n _this.on(player, 'pause', _this.handlePause);\n _this.on(player, 'ended', _this.handleEnded);\n return _this;\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n PlayToggle.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-play-control ' + _Button.prototype.buildCSSClass.call(this);\n };\n\n /**\n * This gets called when an `PlayToggle` is \"clicked\". See\n * {@link ClickableComponent} for more detailed information on what a click can be.\n *\n * @param {EventTarget~Event} [event]\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n */\n\n\n PlayToggle.prototype.handleClick = function handleClick(event) {\n if (this.player_.paused()) {\n this.player_.play();\n } else {\n this.player_.pause();\n }\n };\n\n /**\n * This gets called once after the video has ended and the user seeks so that\n * we can change the replay button back to a play button.\n *\n * @param {EventTarget~Event} [event]\n * The event that caused this function to run.\n *\n * @listens Player#seeked\n */\n\n\n PlayToggle.prototype.handleSeeked = function handleSeeked(event) {\n this.removeClass('vjs-ended');\n\n if (this.player_.paused()) {\n this.handlePause(event);\n } else {\n this.handlePlay(event);\n }\n };\n\n /**\n * Add the vjs-playing class to the element so it can change appearance.\n *\n * @param {EventTarget~Event} [event]\n * The event that caused this function to run.\n *\n * @listens Player#play\n */\n\n\n PlayToggle.prototype.handlePlay = function handlePlay(event) {\n this.removeClass('vjs-ended');\n this.removeClass('vjs-paused');\n this.addClass('vjs-playing');\n // change the button text to \"Pause\"\n this.controlText('Pause');\n };\n\n /**\n * Add the vjs-paused class to the element so it can change appearance.\n *\n * @param {EventTarget~Event} [event]\n * The event that caused this function to run.\n *\n * @listens Player#pause\n */\n\n\n PlayToggle.prototype.handlePause = function handlePause(event) {\n this.removeClass('vjs-playing');\n this.addClass('vjs-paused');\n // change the button text to \"Play\"\n this.controlText('Play');\n };\n\n /**\n * Add the vjs-ended class to the element so it can change appearance\n *\n * @param {EventTarget~Event} [event]\n * The event that caused this function to run.\n *\n * @listens Player#ended\n */\n\n\n PlayToggle.prototype.handleEnded = function handleEnded(event) {\n this.removeClass('vjs-playing');\n this.addClass('vjs-ended');\n // change the button text to \"Replay\"\n this.controlText('Replay');\n\n // on the next seek remove the replay button\n this.one(this.player_, 'seeked', this.handleSeeked);\n };\n\n return PlayToggle;\n}(Button);\n\n/**\n * The text that should display over the `PlayToggle`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\n\nPlayToggle.prototype.controlText_ = 'Play';\n\nComponent.registerComponent('PlayToggle', PlayToggle);\n\n/**\n * @file format-time.js\n * @module format-time\n */\n\n/**\n* Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in seconds)\n* will force a number of leading zeros to cover the length of the guide.\n*\n* @param {number} seconds\n* Number of seconds to be turned into a string\n*\n* @param {number} guide\n* Number (in seconds) to model the string after\n*\n* @return {string}\n* Time formatted as H:MM:SS or M:SS\n*/\nvar defaultImplementation = function defaultImplementation(seconds, guide) {\n seconds = seconds < 0 ? 0 : seconds;\n var s = Math.floor(seconds % 60);\n var m = Math.floor(seconds / 60 % 60);\n var h = Math.floor(seconds / 3600);\n var gm = Math.floor(guide / 60 % 60);\n var gh = Math.floor(guide / 3600);\n\n // handle invalid times\n if (isNaN(seconds) || seconds === Infinity) {\n // '-' is false for all relational operators (e.g. <, >=) so this setting\n // will add the minimum number of fields specified by the guide\n h = m = s = '-';\n }\n\n // Check if we need to show hours\n h = h > 0 || gh > 0 ? h + ':' : '';\n\n // If hours are showing, we may need to add a leading zero.\n // Always show at least one digit of minutes.\n m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':';\n\n // Check if leading zero is need for seconds\n s = s < 10 ? '0' + s : s;\n\n return h + m + s;\n};\n\nvar implementation = defaultImplementation;\n\n/**\n * Replaces the default formatTime implementation with a custom implementation.\n *\n * @param {Function} customImplementation\n * A function which will be used in place of the default formatTime implementation.\n * Will receive the current time in seconds and the guide (in seconds) as arguments.\n */\nfunction setFormatTime(customImplementation) {\n implementation = customImplementation;\n}\n\n/**\n * Resets formatTime to the default implementation.\n */\nfunction resetFormatTime() {\n implementation = defaultImplementation;\n}\n\nvar formatTime = function (seconds) {\n var guide = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : seconds;\n\n return implementation(seconds, guide);\n};\n\n/**\n * @file time-display.js\n */\n/**\n * Displays the time left in the video\n *\n * @extends Component\n */\n\nvar TimeDisplay = function (_Component) {\n inherits(TimeDisplay, _Component);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function TimeDisplay(player, options) {\n classCallCheck(this, TimeDisplay);\n\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options));\n\n _this.throttledUpdateContent = throttle(bind(_this, _this.updateContent), 25);\n _this.on(player, 'timeupdate', _this.throttledUpdateContent);\n return _this;\n }\n\n /**\n * Create the `Component`'s DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n\n\n TimeDisplay.prototype.createEl = function createEl$$1(plainName) {\n var className = this.buildCSSClass();\n var el = _Component.prototype.createEl.call(this, 'div', {\n className: className + ' vjs-time-control vjs-control',\n innerHTML: '<span class=\"vjs-control-text\">' + this.localize(this.labelText_) + '\\xA0</span>'\n });\n\n this.contentEl_ = createEl('span', {\n className: className + '-display'\n }, {\n // tell screen readers not to automatically read the time as it changes\n 'aria-live': 'off'\n });\n\n this.updateTextNode_();\n el.appendChild(this.contentEl_);\n return el;\n };\n\n TimeDisplay.prototype.dispose = function dispose() {\n this.contentEl_ = null;\n this.textNode_ = null;\n\n _Component.prototype.dispose.call(this);\n };\n\n /**\n * Updates the \"remaining time\" text node with new content using the\n * contents of the `formattedTime_` property.\n *\n * @private\n */\n\n\n TimeDisplay.prototype.updateTextNode_ = function updateTextNode_() {\n if (!this.contentEl_) {\n return;\n }\n\n while (this.contentEl_.firstChild) {\n this.contentEl_.removeChild(this.contentEl_.firstChild);\n }\n\n this.textNode_ = document.createTextNode(this.formattedTime_ || this.formatTime_(0));\n this.contentEl_.appendChild(this.textNode_);\n };\n\n /**\n * Generates a formatted time for this component to use in display.\n *\n * @param {number} time\n * A numeric time, in seconds.\n *\n * @return {string}\n * A formatted time\n *\n * @private\n */\n\n\n TimeDisplay.prototype.formatTime_ = function formatTime_(time) {\n return formatTime(time);\n };\n\n /**\n * Updates the time display text node if it has what was passed in changed\n * the formatted time.\n *\n * @param {number} time\n * The time to update to\n *\n * @private\n */\n\n\n TimeDisplay.prototype.updateFormattedTime_ = function updateFormattedTime_(time) {\n var formattedTime = this.formatTime_(time);\n\n if (formattedTime === this.formattedTime_) {\n return;\n }\n\n this.formattedTime_ = formattedTime;\n this.requestAnimationFrame(this.updateTextNode_);\n };\n\n /**\n * To be filled out in the child class, should update the displayed time\n * in accordance with the fact that the current time has changed.\n *\n * @param {EventTarget~Event} [event]\n * The `timeupdate` event that caused this to run.\n *\n * @listens Player#timeupdate\n */\n\n\n TimeDisplay.prototype.updateContent = function updateContent(event) {};\n\n return TimeDisplay;\n}(Component);\n\n/**\n * The text that is added to the `TimeDisplay` for screen reader users.\n *\n * @type {string}\n * @private\n */\n\n\nTimeDisplay.prototype.labelText_ = 'Time';\n\n/**\n * The text that should display over the `TimeDisplay`s controls. Added to for localization.\n *\n * @type {string}\n * @private\n *\n * @deprecated in v7; controlText_ is not used in non-active display Components\n */\nTimeDisplay.prototype.controlText_ = 'Time';\n\nComponent.registerComponent('TimeDisplay', TimeDisplay);\n\n/**\n * @file current-time-display.js\n */\n/**\n * Displays the current time\n *\n * @extends Component\n */\n\nvar CurrentTimeDisplay = function (_TimeDisplay) {\n inherits(CurrentTimeDisplay, _TimeDisplay);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function CurrentTimeDisplay(player, options) {\n classCallCheck(this, CurrentTimeDisplay);\n\n var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));\n\n _this.on(player, 'ended', _this.handleEnded);\n return _this;\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n CurrentTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-current-time';\n };\n\n /**\n * Update current time display\n *\n * @param {EventTarget~Event} [event]\n * The `timeupdate` event that caused this function to run.\n *\n * @listens Player#timeupdate\n */\n\n\n CurrentTimeDisplay.prototype.updateContent = function updateContent(event) {\n // Allows for smooth scrubbing, when player can't keep up.\n var time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();\n\n this.updateFormattedTime_(time);\n };\n\n /**\n * When the player fires ended there should be no time left. Sadly\n * this is not always the case, lets make it seem like that is the case\n * for users.\n *\n * @param {EventTarget~Event} [event]\n * The `ended` event that caused this to run.\n *\n * @listens Player#ended\n */\n\n\n CurrentTimeDisplay.prototype.handleEnded = function handleEnded(event) {\n if (!this.player_.duration()) {\n return;\n }\n this.updateFormattedTime_(this.player_.duration());\n };\n\n return CurrentTimeDisplay;\n}(TimeDisplay);\n\n/**\n * The text that is added to the `CurrentTimeDisplay` for screen reader users.\n *\n * @type {string}\n * @private\n */\n\n\nCurrentTimeDisplay.prototype.labelText_ = 'Current Time';\n\n/**\n * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.\n *\n * @type {string}\n * @private\n *\n * @deprecated in v7; controlText_ is not used in non-active display Components\n */\nCurrentTimeDisplay.prototype.controlText_ = 'Current Time';\n\nComponent.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);\n\n/**\n * @file duration-display.js\n */\n/**\n * Displays the duration\n *\n * @extends Component\n */\n\nvar DurationDisplay = function (_TimeDisplay) {\n inherits(DurationDisplay, _TimeDisplay);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function DurationDisplay(player, options) {\n classCallCheck(this, DurationDisplay);\n\n // we do not want to/need to throttle duration changes,\n // as they should always display the changed duration as\n // it has changed\n var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));\n\n _this.on(player, 'durationchange', _this.updateContent);\n\n // Also listen for timeupdate (in the parent) and loadedmetadata because removing those\n // listeners could have broken dependent applications/libraries. These\n // can likely be removed for 7.0.\n _this.on(player, 'loadedmetadata', _this.throttledUpdateContent);\n return _this;\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n DurationDisplay.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-duration';\n };\n\n /**\n * Update duration time display.\n *\n * @param {EventTarget~Event} [event]\n * The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused\n * this function to be called.\n *\n * @listens Player#durationchange\n * @listens Player#timeupdate\n * @listens Player#loadedmetadata\n */\n\n\n DurationDisplay.prototype.updateContent = function updateContent(event) {\n var duration = this.player_.duration();\n\n if (duration && this.duration_ !== duration) {\n this.duration_ = duration;\n this.updateFormattedTime_(duration);\n }\n };\n\n return DurationDisplay;\n}(TimeDisplay);\n\n/**\n * The text that is added to the `DurationDisplay` for screen reader users.\n *\n * @type {string}\n * @private\n */\n\n\nDurationDisplay.prototype.labelText_ = 'Duration';\n\n/**\n * The text that should display over the `DurationDisplay`s controls. Added to for localization.\n *\n * @type {string}\n * @private\n *\n * @deprecated in v7; controlText_ is not used in non-active display Components\n */\nDurationDisplay.prototype.controlText_ = 'Duration';\n\nComponent.registerComponent('DurationDisplay', DurationDisplay);\n\n/**\n * @file time-divider.js\n */\n/**\n * The separator between the current time and duration.\n * Can be hidden if it's not needed in the design.\n *\n * @extends Component\n */\n\nvar TimeDivider = function (_Component) {\n inherits(TimeDivider, _Component);\n\n function TimeDivider() {\n classCallCheck(this, TimeDivider);\n return possibleConstructorReturn(this, _Component.apply(this, arguments));\n }\n\n /**\n * Create the component's DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n TimeDivider.prototype.createEl = function createEl() {\n return _Component.prototype.createEl.call(this, 'div', {\n className: 'vjs-time-control vjs-time-divider',\n innerHTML: '<div><span>/</span></div>'\n });\n };\n\n return TimeDivider;\n}(Component);\n\nComponent.registerComponent('TimeDivider', TimeDivider);\n\n/**\n * @file remaining-time-display.js\n */\n/**\n * Displays the time left in the video\n *\n * @extends Component\n */\n\nvar RemainingTimeDisplay = function (_TimeDisplay) {\n inherits(RemainingTimeDisplay, _TimeDisplay);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function RemainingTimeDisplay(player, options) {\n classCallCheck(this, RemainingTimeDisplay);\n\n var _this = possibleConstructorReturn(this, _TimeDisplay.call(this, player, options));\n\n _this.on(player, 'durationchange', _this.throttledUpdateContent);\n _this.on(player, 'ended', _this.handleEnded);\n return _this;\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n RemainingTimeDisplay.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-remaining-time';\n };\n\n /**\n * The remaining time display prefixes numbers with a \"minus\" character.\n *\n * @param {number} time\n * A numeric time, in seconds.\n *\n * @return {string}\n * A formatted time\n *\n * @private\n */\n\n\n RemainingTimeDisplay.prototype.formatTime_ = function formatTime_(time) {\n // TODO: The \"-\" should be decorative, and not announced by a screen reader\n return '-' + _TimeDisplay.prototype.formatTime_.call(this, time);\n };\n\n /**\n * Update remaining time display.\n *\n * @param {EventTarget~Event} [event]\n * The `timeupdate` or `durationchange` event that caused this to run.\n *\n * @listens Player#timeupdate\n * @listens Player#durationchange\n */\n\n\n RemainingTimeDisplay.prototype.updateContent = function updateContent(event) {\n if (!this.player_.duration()) {\n return;\n }\n\n // @deprecated We should only use remainingTimeDisplay\n // as of video.js 7\n if (this.player_.remainingTimeDisplay) {\n this.updateFormattedTime_(this.player_.remainingTimeDisplay());\n } else {\n this.updateFormattedTime_(this.player_.remainingTime());\n }\n };\n\n /**\n * When the player fires ended there should be no time left. Sadly\n * this is not always the case, lets make it seem like that is the case\n * for users.\n *\n * @param {EventTarget~Event} [event]\n * The `ended` event that caused this to run.\n *\n * @listens Player#ended\n */\n\n\n RemainingTimeDisplay.prototype.handleEnded = function handleEnded(event) {\n if (!this.player_.duration()) {\n return;\n }\n this.updateFormattedTime_(0);\n };\n\n return RemainingTimeDisplay;\n}(TimeDisplay);\n\n/**\n * The text that is added to the `RemainingTimeDisplay` for screen reader users.\n *\n * @type {string}\n * @private\n */\n\n\nRemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';\n\n/**\n * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.\n *\n * @type {string}\n * @private\n *\n * @deprecated in v7; controlText_ is not used in non-active display Components\n */\nRemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';\n\nComponent.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);\n\n/**\n * @file live-display.js\n */\n// TODO - Future make it click to snap to live\n\n/**\n * Displays the live indicator when duration is Infinity.\n *\n * @extends Component\n */\n\nvar LiveDisplay = function (_Component) {\n inherits(LiveDisplay, _Component);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function LiveDisplay(player, options) {\n classCallCheck(this, LiveDisplay);\n\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options));\n\n _this.updateShowing();\n _this.on(_this.player(), 'durationchange', _this.updateShowing);\n return _this;\n }\n\n /**\n * Create the `Component`'s DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n\n\n LiveDisplay.prototype.createEl = function createEl$$1() {\n var el = _Component.prototype.createEl.call(this, 'div', {\n className: 'vjs-live-control vjs-control'\n });\n\n this.contentEl_ = createEl('div', {\n className: 'vjs-live-display',\n innerHTML: '<span class=\"vjs-control-text\">' + this.localize('Stream Type') + '\\xA0</span>' + this.localize('LIVE')\n }, {\n 'aria-live': 'off'\n });\n\n el.appendChild(this.contentEl_);\n return el;\n };\n\n LiveDisplay.prototype.dispose = function dispose() {\n this.contentEl_ = null;\n\n _Component.prototype.dispose.call(this);\n };\n\n /**\n * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide\n * it accordingly\n *\n * @param {EventTarget~Event} [event]\n * The {@link Player#durationchange} event that caused this function to run.\n *\n * @listens Player#durationchange\n */\n\n\n LiveDisplay.prototype.updateShowing = function updateShowing(event) {\n if (this.player().duration() === Infinity) {\n this.show();\n } else {\n this.hide();\n }\n };\n\n return LiveDisplay;\n}(Component);\n\nComponent.registerComponent('LiveDisplay', LiveDisplay);\n\n/**\n * @file slider.js\n */\n/**\n * The base functionality for a slider. Can be vertical or horizontal.\n * For instance the volume bar or the seek bar on a video is a slider.\n *\n * @extends Component\n */\n\nvar Slider = function (_Component) {\n inherits(Slider, _Component);\n\n /**\n * Create an instance of this class\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function Slider(player, options) {\n classCallCheck(this, Slider);\n\n // Set property names to bar to match with the child Slider class is looking for\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options));\n\n _this.bar = _this.getChild(_this.options_.barName);\n\n // Set a horizontal or vertical class on the slider depending on the slider type\n _this.vertical(!!_this.options_.vertical);\n\n _this.enable();\n return _this;\n }\n\n /**\n * Are controls are currently enabled for this slider or not.\n *\n * @return {boolean}\n * true if controls are enabled, false otherwise\n */\n\n\n Slider.prototype.enabled = function enabled() {\n return this.enabled_;\n };\n\n /**\n * Enable controls for this slider if they are disabled\n */\n\n\n Slider.prototype.enable = function enable() {\n if (this.enabled()) {\n return;\n }\n\n this.on('mousedown', this.handleMouseDown);\n this.on('touchstart', this.handleMouseDown);\n this.on('focus', this.handleFocus);\n this.on('blur', this.handleBlur);\n this.on('click', this.handleClick);\n\n this.on(this.player_, 'controlsvisible', this.update);\n\n if (this.playerEvent) {\n this.on(this.player_, this.playerEvent, this.update);\n }\n\n this.removeClass('disabled');\n this.setAttribute('tabindex', 0);\n\n this.enabled_ = true;\n };\n\n /**\n * Disable controls for this slider if they are enabled\n */\n\n\n Slider.prototype.disable = function disable() {\n if (!this.enabled()) {\n return;\n }\n var doc = this.bar.el_.ownerDocument;\n\n this.off('mousedown', this.handleMouseDown);\n this.off('touchstart', this.handleMouseDown);\n this.off('focus', this.handleFocus);\n this.off('blur', this.handleBlur);\n this.off('click', this.handleClick);\n this.off(this.player_, 'controlsvisible', this.update);\n this.off(doc, 'mousemove', this.handleMouseMove);\n this.off(doc, 'mouseup', this.handleMouseUp);\n this.off(doc, 'touchmove', this.handleMouseMove);\n this.off(doc, 'touchend', this.handleMouseUp);\n this.removeAttribute('tabindex');\n\n this.addClass('disabled');\n\n if (this.playerEvent) {\n this.off(this.player_, this.playerEvent, this.update);\n }\n this.enabled_ = false;\n };\n\n /**\n * Create the `Button`s DOM element.\n *\n * @param {string} type\n * Type of element to create.\n *\n * @param {Object} [props={}]\n * List of properties in Object form.\n *\n * @param {Object} [attributes={}]\n * list of attributes in Object form.\n *\n * @return {Element}\n * The element that gets created.\n */\n\n\n Slider.prototype.createEl = function createEl$$1(type) {\n var props = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var attributes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};\n\n // Add the slider element class to all sub classes\n props.className = props.className + ' vjs-slider';\n props = assign({\n tabIndex: 0\n }, props);\n\n attributes = assign({\n 'role': 'slider',\n 'aria-valuenow': 0,\n 'aria-valuemin': 0,\n 'aria-valuemax': 100,\n 'tabIndex': 0\n }, attributes);\n\n return _Component.prototype.createEl.call(this, type, props, attributes);\n };\n\n /**\n * Handle `mousedown` or `touchstart` events on the `Slider`.\n *\n * @param {EventTarget~Event} event\n * `mousedown` or `touchstart` event that triggered this function\n *\n * @listens mousedown\n * @listens touchstart\n * @fires Slider#slideractive\n */\n\n\n Slider.prototype.handleMouseDown = function handleMouseDown(event) {\n var doc = this.bar.el_.ownerDocument;\n\n if (event.type === 'mousedown') {\n event.preventDefault();\n }\n // Do not call preventDefault() on touchstart in Chrome\n // to avoid console warnings. Use a 'touch-action: none' style\n // instead to prevent unintented scrolling.\n // https://developers.google.com/web/updates/2017/01/scrolling-intervention\n if (event.type === 'touchstart' && !IS_CHROME) {\n event.preventDefault();\n }\n blockTextSelection();\n\n this.addClass('vjs-sliding');\n /**\n * Triggered when the slider is in an active state\n *\n * @event Slider#slideractive\n * @type {EventTarget~Event}\n */\n this.trigger('slideractive');\n\n this.on(doc, 'mousemove', this.handleMouseMove);\n this.on(doc, 'mouseup', this.handleMouseUp);\n this.on(doc, 'touchmove', this.handleMouseMove);\n this.on(doc, 'touchend', this.handleMouseUp);\n\n this.handleMouseMove(event);\n };\n\n /**\n * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.\n * The `mousemove` and `touchmove` events will only only trigger this function during\n * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and\n * {@link Slider#handleMouseUp}.\n *\n * @param {EventTarget~Event} event\n * `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered\n * this function\n *\n * @listens mousemove\n * @listens touchmove\n */\n\n\n Slider.prototype.handleMouseMove = function handleMouseMove(event) {};\n\n /**\n * Handle `mouseup` or `touchend` events on the `Slider`.\n *\n * @param {EventTarget~Event} event\n * `mouseup` or `touchend` event that triggered this function.\n *\n * @listens touchend\n * @listens mouseup\n * @fires Slider#sliderinactive\n */\n\n\n Slider.prototype.handleMouseUp = function handleMouseUp() {\n var doc = this.bar.el_.ownerDocument;\n\n unblockTextSelection();\n\n this.removeClass('vjs-sliding');\n /**\n * Triggered when the slider is no longer in an active state.\n *\n * @event Slider#sliderinactive\n * @type {EventTarget~Event}\n */\n this.trigger('sliderinactive');\n\n this.off(doc, 'mousemove', this.handleMouseMove);\n this.off(doc, 'mouseup', this.handleMouseUp);\n this.off(doc, 'touchmove', this.handleMouseMove);\n this.off(doc, 'touchend', this.handleMouseUp);\n\n this.update();\n };\n\n /**\n * Update the progress bar of the `Slider`.\n *\n * @returns {number}\n * The percentage of progress the progress bar represents as a\n * number from 0 to 1.\n */\n\n\n Slider.prototype.update = function update() {\n\n // In VolumeBar init we have a setTimeout for update that pops and update\n // to the end of the execution stack. The player is destroyed before then\n // update will cause an error\n if (!this.el_) {\n return;\n }\n\n // If scrubbing, we could use a cached value to make the handle keep up\n // with the user's mouse. On HTML5 browsers scrubbing is really smooth, but\n // some flash players are slow, so we might want to utilize this later.\n // var progress = (this.player_.scrubbing()) ? this.player_.getCache().currentTime / this.player_.duration() : this.player_.currentTime() / this.player_.duration();\n var progress = this.getPercent();\n var bar = this.bar;\n\n // If there's no bar...\n if (!bar) {\n return;\n }\n\n // Protect against no duration and other division issues\n if (typeof progress !== 'number' || progress !== progress || progress < 0 || progress === Infinity) {\n progress = 0;\n }\n\n // Convert to a percentage for setting\n var percentage = (progress * 100).toFixed(2) + '%';\n var style = bar.el().style;\n\n // Set the new bar width or height\n if (this.vertical()) {\n style.height = percentage;\n } else {\n style.width = percentage;\n }\n\n return progress;\n };\n\n /**\n * Calculate distance for slider\n *\n * @param {EventTarget~Event} event\n * The event that caused this function to run.\n *\n * @return {number}\n * The current position of the Slider.\n * - postition.x for vertical `Slider`s\n * - postition.y for horizontal `Slider`s\n */\n\n\n Slider.prototype.calculateDistance = function calculateDistance(event) {\n var position = getPointerPosition(this.el_, event);\n\n if (this.vertical()) {\n return position.y;\n }\n return position.x;\n };\n\n /**\n * Handle a `focus` event on this `Slider`.\n *\n * @param {EventTarget~Event} event\n * The `focus` event that caused this function to run.\n *\n * @listens focus\n */\n\n\n Slider.prototype.handleFocus = function handleFocus() {\n this.on(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);\n };\n\n /**\n * Handle a `keydown` event on the `Slider`. Watches for left, rigth, up, and down\n * arrow keys. This function will only be called when the slider has focus. See\n * {@link Slider#handleFocus} and {@link Slider#handleBlur}.\n *\n * @param {EventTarget~Event} event\n * the `keydown` event that caused this function to run.\n *\n * @listens keydown\n */\n\n\n Slider.prototype.handleKeyPress = function handleKeyPress(event) {\n // Left and Down Arrows\n if (event.which === 37 || event.which === 40) {\n event.preventDefault();\n this.stepBack();\n\n // Up and Right Arrows\n } else if (event.which === 38 || event.which === 39) {\n event.preventDefault();\n this.stepForward();\n }\n };\n\n /**\n * Handle a `blur` event on this `Slider`.\n *\n * @param {EventTarget~Event} event\n * The `blur` event that caused this function to run.\n *\n * @listens blur\n */\n\n Slider.prototype.handleBlur = function handleBlur() {\n this.off(this.bar.el_.ownerDocument, 'keydown', this.handleKeyPress);\n };\n\n /**\n * Listener for click events on slider, used to prevent clicks\n * from bubbling up to parent elements like button menus.\n *\n * @param {Object} event\n * Event that caused this object to run\n */\n\n\n Slider.prototype.handleClick = function handleClick(event) {\n event.stopImmediatePropagation();\n event.preventDefault();\n };\n\n /**\n * Get/set if slider is horizontal for vertical\n *\n * @param {boolean} [bool]\n * - true if slider is vertical,\n * - false is horizontal\n *\n * @return {boolean}\n * - true if slider is vertical, and getting\n * - false if the slider is horizontal, and getting\n */\n\n\n Slider.prototype.vertical = function vertical(bool) {\n if (bool === undefined) {\n return this.vertical_ || false;\n }\n\n this.vertical_ = !!bool;\n\n if (this.vertical_) {\n this.addClass('vjs-slider-vertical');\n } else {\n this.addClass('vjs-slider-horizontal');\n }\n };\n\n return Slider;\n}(Component);\n\nComponent.registerComponent('Slider', Slider);\n\n/**\n * @file load-progress-bar.js\n */\n/**\n * Shows loading progress\n *\n * @extends Component\n */\n\nvar LoadProgressBar = function (_Component) {\n inherits(LoadProgressBar, _Component);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function LoadProgressBar(player, options) {\n classCallCheck(this, LoadProgressBar);\n\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options));\n\n _this.partEls_ = [];\n _this.on(player, 'progress', _this.update);\n return _this;\n }\n\n /**\n * Create the `Component`'s DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n\n\n LoadProgressBar.prototype.createEl = function createEl$$1() {\n return _Component.prototype.createEl.call(this, 'div', {\n className: 'vjs-load-progress',\n innerHTML: '<span class=\"vjs-control-text\"><span>' + this.localize('Loaded') + '</span>: 0%</span>'\n });\n };\n\n LoadProgressBar.prototype.dispose = function dispose() {\n this.partEls_ = null;\n\n _Component.prototype.dispose.call(this);\n };\n\n /**\n * Update progress bar\n *\n * @param {EventTarget~Event} [event]\n * The `progress` event that caused this function to run.\n *\n * @listens Player#progress\n */\n\n\n LoadProgressBar.prototype.update = function update(event) {\n var buffered = this.player_.buffered();\n var duration = this.player_.duration();\n var bufferedEnd = this.player_.bufferedEnd();\n var children = this.partEls_;\n\n // get the percent width of a time compared to the total end\n var percentify = function percentify(time, end) {\n // no NaN\n var percent = time / end || 0;\n\n return (percent >= 1 ? 1 : percent) * 100 + '%';\n };\n\n // update the width of the progress bar\n this.el_.style.width = percentify(bufferedEnd, duration);\n\n // add child elements to represent the individual buffered time ranges\n for (var i = 0; i < buffered.length; i++) {\n var start = buffered.start(i);\n var end = buffered.end(i);\n var part = children[i];\n\n if (!part) {\n part = this.el_.appendChild(createEl());\n children[i] = part;\n }\n\n // set the percent based on the width of the progress bar (bufferedEnd)\n part.style.left = percentify(start, bufferedEnd);\n part.style.width = percentify(end - start, bufferedEnd);\n }\n\n // remove unused buffered range elements\n for (var _i = children.length; _i > buffered.length; _i--) {\n this.el_.removeChild(children[_i - 1]);\n }\n children.length = buffered.length;\n };\n\n return LoadProgressBar;\n}(Component);\n\nComponent.registerComponent('LoadProgressBar', LoadProgressBar);\n\n/**\n * @file time-tooltip.js\n */\n/**\n * Time tooltips display a time above the progress bar.\n *\n * @extends Component\n */\n\nvar TimeTooltip = function (_Component) {\n inherits(TimeTooltip, _Component);\n\n function TimeTooltip() {\n classCallCheck(this, TimeTooltip);\n return possibleConstructorReturn(this, _Component.apply(this, arguments));\n }\n\n /**\n * Create the time tooltip DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n TimeTooltip.prototype.createEl = function createEl$$1() {\n return _Component.prototype.createEl.call(this, 'div', {\n className: 'vjs-time-tooltip'\n });\n };\n\n /**\n * Updates the position of the time tooltip relative to the `SeekBar`.\n *\n * @param {Object} seekBarRect\n * The `ClientRect` for the {@link SeekBar} element.\n *\n * @param {number} seekBarPoint\n * A number from 0 to 1, representing a horizontal reference point\n * from the left edge of the {@link SeekBar}\n */\n\n\n TimeTooltip.prototype.update = function update(seekBarRect, seekBarPoint, content) {\n var tooltipRect = getBoundingClientRect(this.el_);\n var playerRect = getBoundingClientRect(this.player_.el());\n var seekBarPointPx = seekBarRect.width * seekBarPoint;\n\n // do nothing if either rect isn't available\n // for example, if the player isn't in the DOM for testing\n if (!playerRect || !tooltipRect) {\n return;\n }\n\n // This is the space left of the `seekBarPoint` available within the bounds\n // of the player. We calculate any gap between the left edge of the player\n // and the left edge of the `SeekBar` and add the number of pixels in the\n // `SeekBar` before hitting the `seekBarPoint`\n var spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx;\n\n // This is the space right of the `seekBarPoint` available within the bounds\n // of the player. We calculate the number of pixels from the `seekBarPoint`\n // to the right edge of the `SeekBar` and add to that any gap between the\n // right edge of the `SeekBar` and the player.\n var spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right);\n\n // This is the number of pixels by which the tooltip will need to be pulled\n // further to the right to center it over the `seekBarPoint`.\n var pullTooltipBy = tooltipRect.width / 2;\n\n // Adjust the `pullTooltipBy` distance to the left or right depending on\n // the results of the space calculations above.\n if (spaceLeftOfPoint < pullTooltipBy) {\n pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;\n } else if (spaceRightOfPoint < pullTooltipBy) {\n pullTooltipBy = spaceRightOfPoint;\n }\n\n // Due to the imprecision of decimal/ratio based calculations and varying\n // rounding behaviors, there are cases where the spacing adjustment is off\n // by a pixel or two. This adds insurance to these calculations.\n if (pullTooltipBy < 0) {\n pullTooltipBy = 0;\n } else if (pullTooltipBy > tooltipRect.width) {\n pullTooltipBy = tooltipRect.width;\n }\n\n this.el_.style.right = '-' + pullTooltipBy + 'px';\n textContent(this.el_, content);\n };\n\n return TimeTooltip;\n}(Component);\n\nComponent.registerComponent('TimeTooltip', TimeTooltip);\n\n/**\n * @file play-progress-bar.js\n */\n/**\n * Used by {@link SeekBar} to display media playback progress as part of the\n * {@link ProgressControl}.\n *\n * @extends Component\n */\n\nvar PlayProgressBar = function (_Component) {\n inherits(PlayProgressBar, _Component);\n\n function PlayProgressBar() {\n classCallCheck(this, PlayProgressBar);\n return possibleConstructorReturn(this, _Component.apply(this, arguments));\n }\n\n /**\n * Create the the DOM element for this class.\n *\n * @return {Element}\n * The element that was created.\n */\n PlayProgressBar.prototype.createEl = function createEl() {\n return _Component.prototype.createEl.call(this, 'div', {\n className: 'vjs-play-progress vjs-slider-bar',\n innerHTML: '<span class=\"vjs-control-text\"><span>' + this.localize('Progress') + '</span>: 0%</span>'\n });\n };\n\n /**\n * Enqueues updates to its own DOM as well as the DOM of its\n * {@link TimeTooltip} child.\n *\n * @param {Object} seekBarRect\n * The `ClientRect` for the {@link SeekBar} element.\n *\n * @param {number} seekBarPoint\n * A number from 0 to 1, representing a horizontal reference point\n * from the left edge of the {@link SeekBar}\n */\n\n\n PlayProgressBar.prototype.update = function update(seekBarRect, seekBarPoint) {\n var _this2 = this;\n\n // If there is an existing rAF ID, cancel it so we don't over-queue.\n if (this.rafId_) {\n this.cancelAnimationFrame(this.rafId_);\n }\n\n this.rafId_ = this.requestAnimationFrame(function () {\n var time = _this2.player_.scrubbing() ? _this2.player_.getCache().currentTime : _this2.player_.currentTime();\n\n var content = formatTime(time, _this2.player_.duration());\n var timeTooltip = _this2.getChild('timeTooltip');\n\n if (timeTooltip) {\n timeTooltip.update(seekBarRect, seekBarPoint, content);\n }\n });\n };\n\n return PlayProgressBar;\n}(Component);\n\n/**\n * Default options for {@link PlayProgressBar}.\n *\n * @type {Object}\n * @private\n */\n\n\nPlayProgressBar.prototype.options_ = {\n children: []\n};\n\n// Time tooltips should not be added to a player on mobile devices or IE8\nif ((!IE_VERSION || IE_VERSION > 8) && !IS_IOS && !IS_ANDROID) {\n PlayProgressBar.prototype.options_.children.push('timeTooltip');\n}\n\nComponent.registerComponent('PlayProgressBar', PlayProgressBar);\n\n/**\n * @file mouse-time-display.js\n */\n/**\n * The {@link MouseTimeDisplay} component tracks mouse movement over the\n * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}\n * indicating the time which is represented by a given point in the\n * {@link ProgressControl}.\n *\n * @extends Component\n */\n\nvar MouseTimeDisplay = function (_Component) {\n inherits(MouseTimeDisplay, _Component);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The {@link Player} that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function MouseTimeDisplay(player, options) {\n classCallCheck(this, MouseTimeDisplay);\n\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options));\n\n _this.update = throttle(bind(_this, _this.update), 25);\n return _this;\n }\n\n /**\n * Create the DOM element for this class.\n *\n * @return {Element}\n * The element that was created.\n */\n\n\n MouseTimeDisplay.prototype.createEl = function createEl() {\n return _Component.prototype.createEl.call(this, 'div', {\n className: 'vjs-mouse-display'\n });\n };\n\n /**\n * Enqueues updates to its own DOM as well as the DOM of its\n * {@link TimeTooltip} child.\n *\n * @param {Object} seekBarRect\n * The `ClientRect` for the {@link SeekBar} element.\n *\n * @param {number} seekBarPoint\n * A number from 0 to 1, representing a horizontal reference point\n * from the left edge of the {@link SeekBar}\n */\n\n\n MouseTimeDisplay.prototype.update = function update(seekBarRect, seekBarPoint) {\n var _this2 = this;\n\n // If there is an existing rAF ID, cancel it so we don't over-queue.\n if (this.rafId_) {\n this.cancelAnimationFrame(this.rafId_);\n }\n\n this.rafId_ = this.requestAnimationFrame(function () {\n var duration = _this2.player_.duration();\n var content = formatTime(seekBarPoint * duration, duration);\n\n _this2.el_.style.left = seekBarRect.width * seekBarPoint + 'px';\n _this2.getChild('timeTooltip').update(seekBarRect, seekBarPoint, content);\n });\n };\n\n return MouseTimeDisplay;\n}(Component);\n\n/**\n * Default options for `MouseTimeDisplay`\n *\n * @type {Object}\n * @private\n */\n\n\nMouseTimeDisplay.prototype.options_ = {\n children: ['timeTooltip']\n};\n\nComponent.registerComponent('MouseTimeDisplay', MouseTimeDisplay);\n\n/**\n * @file seek-bar.js\n */\n// The number of seconds the `step*` functions move the timeline.\nvar STEP_SECONDS = 5;\n\n// The interval at which the bar should update as it progresses.\nvar UPDATE_REFRESH_INTERVAL = 30;\n\n/**\n * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}\n * as its `bar`.\n *\n * @extends Slider\n */\n\nvar SeekBar = function (_Slider) {\n inherits(SeekBar, _Slider);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function SeekBar(player, options) {\n classCallCheck(this, SeekBar);\n\n var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));\n\n _this.setEventHandlers_();\n return _this;\n }\n\n /**\n * Sets the event handlers\n *\n * @private\n */\n\n\n SeekBar.prototype.setEventHandlers_ = function setEventHandlers_() {\n var _this2 = this;\n\n this.update = throttle(bind(this, this.update), UPDATE_REFRESH_INTERVAL);\n\n this.on(this.player_, 'timeupdate', this.update);\n this.on(this.player_, 'ended', this.handleEnded);\n\n // when playing, let's ensure we smoothly update the play progress bar\n // via an interval\n this.updateInterval = null;\n\n this.on(this.player_, ['playing'], function () {\n _this2.clearInterval(_this2.updateInterval);\n\n _this2.updateInterval = _this2.setInterval(function () {\n _this2.requestAnimationFrame(function () {\n _this2.update();\n });\n }, UPDATE_REFRESH_INTERVAL);\n });\n\n this.on(this.player_, ['ended', 'pause', 'waiting'], function () {\n _this2.clearInterval(_this2.updateInterval);\n });\n\n this.on(this.player_, ['timeupdate', 'ended'], this.update);\n };\n\n /**\n * Create the `Component`'s DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n\n\n SeekBar.prototype.createEl = function createEl$$1() {\n return _Slider.prototype.createEl.call(this, 'div', {\n className: 'vjs-progress-holder'\n }, {\n 'aria-label': this.localize('Progress Bar')\n });\n };\n\n /**\n * This function updates the play progress bar and accessiblity\n * attributes to whatever is passed in.\n *\n * @param {number} currentTime\n * The currentTime value that should be used for accessiblity\n *\n * @param {number} percent\n * The percentage as a decimal that the bar should be filled from 0-1.\n *\n * @private\n */\n\n\n SeekBar.prototype.update_ = function update_(currentTime, percent) {\n var duration = this.player_.duration();\n\n // machine readable value of progress bar (percentage complete)\n this.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2));\n\n // human readable value of progress bar (time complete)\n this.el_.setAttribute('aria-valuetext', this.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}'));\n\n // Update the `PlayProgressBar`.\n this.bar.update(getBoundingClientRect(this.el_), percent);\n };\n\n /**\n * Update the seek bar's UI.\n *\n * @param {EventTarget~Event} [event]\n * The `timeupdate` or `ended` event that caused this to run.\n *\n * @listens Player#timeupdate\n *\n * @returns {number}\n * The current percent at a number from 0-1\n */\n\n\n SeekBar.prototype.update = function update(event) {\n var percent = _Slider.prototype.update.call(this);\n\n this.update_(this.getCurrentTime_(), percent);\n return percent;\n };\n\n /**\n * Get the value of current time but allows for smooth scrubbing,\n * when player can't keep up.\n *\n * @return {number}\n * The current time value to display\n *\n * @private\n */\n\n\n SeekBar.prototype.getCurrentTime_ = function getCurrentTime_() {\n return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();\n };\n\n /**\n * We want the seek bar to be full on ended\n * no matter what the actual internal values are. so we force it.\n *\n * @param {EventTarget~Event} [event]\n * The `timeupdate` or `ended` event that caused this to run.\n *\n * @listens Player#ended\n */\n\n\n SeekBar.prototype.handleEnded = function handleEnded(event) {\n this.update_(this.player_.duration(), 1);\n };\n\n /**\n * Get the percentage of media played so far.\n *\n * @return {number}\n * The percentage of media played so far (0 to 1).\n */\n\n\n SeekBar.prototype.getPercent = function getPercent() {\n var percent = this.getCurrentTime_() / this.player_.duration();\n\n return percent >= 1 ? 1 : percent;\n };\n\n /**\n * Handle mouse down on seek bar\n *\n * @param {EventTarget~Event} event\n * The `mousedown` event that caused this to run.\n *\n * @listens mousedown\n */\n\n\n SeekBar.prototype.handleMouseDown = function handleMouseDown(event) {\n if (!isSingleLeftClick(event)) {\n return;\n }\n\n // Stop event propagation to prevent double fire in progress-control.js\n event.stopPropagation();\n this.player_.scrubbing(true);\n\n this.videoWasPlaying = !this.player_.paused();\n this.player_.pause();\n\n _Slider.prototype.handleMouseDown.call(this, event);\n };\n\n /**\n * Handle mouse move on seek bar\n *\n * @param {EventTarget~Event} event\n * The `mousemove` event that caused this to run.\n *\n * @listens mousemove\n */\n\n\n SeekBar.prototype.handleMouseMove = function handleMouseMove(event) {\n if (!isSingleLeftClick(event)) {\n return;\n }\n\n var newTime = this.calculateDistance(event) * this.player_.duration();\n\n // Don't let video end while scrubbing.\n if (newTime === this.player_.duration()) {\n newTime = newTime - 0.1;\n }\n\n // Set new time (tell player to seek to new time)\n this.player_.currentTime(newTime);\n };\n\n SeekBar.prototype.enable = function enable() {\n _Slider.prototype.enable.call(this);\n var mouseTimeDisplay = this.getChild('mouseTimeDisplay');\n\n if (!mouseTimeDisplay) {\n return;\n }\n\n mouseTimeDisplay.show();\n };\n\n SeekBar.prototype.disable = function disable() {\n _Slider.prototype.disable.call(this);\n var mouseTimeDisplay = this.getChild('mouseTimeDisplay');\n\n if (!mouseTimeDisplay) {\n return;\n }\n\n mouseTimeDisplay.hide();\n };\n\n /**\n * Handle mouse up on seek bar\n *\n * @param {EventTarget~Event} event\n * The `mouseup` event that caused this to run.\n *\n * @listens mouseup\n */\n\n\n SeekBar.prototype.handleMouseUp = function handleMouseUp(event) {\n _Slider.prototype.handleMouseUp.call(this, event);\n\n // Stop event propagation to prevent double fire in progress-control.js\n if (event) {\n event.stopPropagation();\n }\n this.player_.scrubbing(false);\n\n /**\n * Trigger timeupdate because we're done seeking and the time has changed.\n * This is particularly useful for if the player is paused to time the time displays.\n *\n * @event Tech#timeupdate\n * @type {EventTarget~Event}\n */\n this.player_.trigger({ type: 'timeupdate', target: this, manuallyTriggered: true });\n if (this.videoWasPlaying) {\n silencePromise(this.player_.play());\n }\n };\n\n /**\n * Move more quickly fast forward for keyboard-only users\n */\n\n\n SeekBar.prototype.stepForward = function stepForward() {\n this.player_.currentTime(this.player_.currentTime() + STEP_SECONDS);\n };\n\n /**\n * Move more quickly rewind for keyboard-only users\n */\n\n\n SeekBar.prototype.stepBack = function stepBack() {\n this.player_.currentTime(this.player_.currentTime() - STEP_SECONDS);\n };\n\n /**\n * Toggles the playback state of the player\n * This gets called when enter or space is used on the seekbar\n *\n * @param {EventTarget~Event} event\n * The `keydown` event that caused this function to be called\n *\n */\n\n\n SeekBar.prototype.handleAction = function handleAction(event) {\n if (this.player_.paused()) {\n this.player_.play();\n } else {\n this.player_.pause();\n }\n };\n\n /**\n * Called when this SeekBar has focus and a key gets pressed down. By\n * default it will call `this.handleAction` when the key is space or enter.\n *\n * @param {EventTarget~Event} event\n * The `keydown` event that caused this function to be called.\n *\n * @listens keydown\n */\n\n\n SeekBar.prototype.handleKeyPress = function handleKeyPress(event) {\n\n // Support Space (32) or Enter (13) key operation to fire a click event\n if (event.which === 32 || event.which === 13) {\n event.preventDefault();\n this.handleAction(event);\n } else if (_Slider.prototype.handleKeyPress) {\n\n // Pass keypress handling up for unsupported keys\n _Slider.prototype.handleKeyPress.call(this, event);\n }\n };\n\n return SeekBar;\n}(Slider);\n\n/**\n * Default options for the `SeekBar`\n *\n * @type {Object}\n * @private\n */\n\n\nSeekBar.prototype.options_ = {\n children: ['loadProgressBar', 'playProgressBar'],\n barName: 'playProgressBar'\n};\n\n// MouseTimeDisplay tooltips should not be added to a player on mobile devices or IE8\nif ((!IE_VERSION || IE_VERSION > 8) && !IS_IOS && !IS_ANDROID) {\n SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');\n}\n\n/**\n * Call the update event for this Slider when this event happens on the player.\n *\n * @type {string}\n */\nSeekBar.prototype.playerEvent = 'timeupdate';\n\nComponent.registerComponent('SeekBar', SeekBar);\n\n/**\n * @file progress-control.js\n */\n/**\n * The Progress Control component contains the seek bar, load progress,\n * and play progress.\n *\n * @extends Component\n */\n\nvar ProgressControl = function (_Component) {\n inherits(ProgressControl, _Component);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function ProgressControl(player, options) {\n classCallCheck(this, ProgressControl);\n\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options));\n\n _this.handleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);\n _this.throttledHandleMouseSeek = throttle(bind(_this, _this.handleMouseSeek), 25);\n\n _this.enable();\n return _this;\n }\n\n /**\n * Create the `Component`'s DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n\n\n ProgressControl.prototype.createEl = function createEl$$1() {\n return _Component.prototype.createEl.call(this, 'div', {\n className: 'vjs-progress-control vjs-control'\n });\n };\n\n /**\n * When the mouse moves over the `ProgressControl`, the pointer position\n * gets passed down to the `MouseTimeDisplay` component.\n *\n * @param {EventTarget~Event} event\n * The `mousemove` event that caused this function to run.\n *\n * @listen mousemove\n */\n\n\n ProgressControl.prototype.handleMouseMove = function handleMouseMove(event) {\n var seekBar = this.getChild('seekBar');\n\n if (seekBar) {\n var mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');\n var seekBarEl = seekBar.el();\n var seekBarRect = getBoundingClientRect(seekBarEl);\n var seekBarPoint = getPointerPosition(seekBarEl, event).x;\n\n // The default skin has a gap on either side of the `SeekBar`. This means\n // that it's possible to trigger this behavior outside the boundaries of\n // the `SeekBar`. This ensures we stay within it at all times.\n if (seekBarPoint > 1) {\n seekBarPoint = 1;\n } else if (seekBarPoint < 0) {\n seekBarPoint = 0;\n }\n\n if (mouseTimeDisplay) {\n mouseTimeDisplay.update(seekBarRect, seekBarPoint);\n }\n }\n };\n\n /**\n * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.\n *\n * @method ProgressControl#throttledHandleMouseSeek\n * @param {EventTarget~Event} event\n * The `mousemove` event that caused this function to run.\n *\n * @listen mousemove\n * @listen touchmove\n */\n\n /**\n * Handle `mousemove` or `touchmove` events on the `ProgressControl`.\n *\n * @param {EventTarget~Event} event\n * `mousedown` or `touchstart` event that triggered this function\n *\n * @listens mousemove\n * @listens touchmove\n */\n\n\n ProgressControl.prototype.handleMouseSeek = function handleMouseSeek(event) {\n var seekBar = this.getChild('seekBar');\n\n if (seekBar) {\n seekBar.handleMouseMove(event);\n }\n };\n\n /**\n * Are controls are currently enabled for this progress control.\n *\n * @return {boolean}\n * true if controls are enabled, false otherwise\n */\n\n\n ProgressControl.prototype.enabled = function enabled() {\n return this.enabled_;\n };\n\n /**\n * Disable all controls on the progress control and its children\n */\n\n\n ProgressControl.prototype.disable = function disable() {\n this.children().forEach(function (child) {\n return child.disable && child.disable();\n });\n\n if (!this.enabled()) {\n return;\n }\n\n this.off(['mousedown', 'touchstart'], this.handleMouseDown);\n this.off(this.el_, 'mousemove', this.handleMouseMove);\n this.handleMouseUp();\n\n this.addClass('disabled');\n\n this.enabled_ = false;\n };\n\n /**\n * Enable all controls on the progress control and its children\n */\n\n\n ProgressControl.prototype.enable = function enable() {\n this.children().forEach(function (child) {\n return child.enable && child.enable();\n });\n\n if (this.enabled()) {\n return;\n }\n\n this.on(['mousedown', 'touchstart'], this.handleMouseDown);\n this.on(this.el_, 'mousemove', this.handleMouseMove);\n this.removeClass('disabled');\n\n this.enabled_ = true;\n };\n\n /**\n * Handle `mousedown` or `touchstart` events on the `ProgressControl`.\n *\n * @param {EventTarget~Event} event\n * `mousedown` or `touchstart` event that triggered this function\n *\n * @listens mousedown\n * @listens touchstart\n */\n\n\n ProgressControl.prototype.handleMouseDown = function handleMouseDown(event) {\n var doc = this.el_.ownerDocument;\n var seekBar = this.getChild('seekBar');\n\n if (seekBar) {\n seekBar.handleMouseDown(event);\n }\n\n this.on(doc, 'mousemove', this.throttledHandleMouseSeek);\n this.on(doc, 'touchmove', this.throttledHandleMouseSeek);\n this.on(doc, 'mouseup', this.handleMouseUp);\n this.on(doc, 'touchend', this.handleMouseUp);\n };\n\n /**\n * Handle `mouseup` or `touchend` events on the `ProgressControl`.\n *\n * @param {EventTarget~Event} event\n * `mouseup` or `touchend` event that triggered this function.\n *\n * @listens touchend\n * @listens mouseup\n */\n\n\n ProgressControl.prototype.handleMouseUp = function handleMouseUp(event) {\n var doc = this.el_.ownerDocument;\n var seekBar = this.getChild('seekBar');\n\n if (seekBar) {\n seekBar.handleMouseUp(event);\n }\n\n this.off(doc, 'mousemove', this.throttledHandleMouseSeek);\n this.off(doc, 'touchmove', this.throttledHandleMouseSeek);\n this.off(doc, 'mouseup', this.handleMouseUp);\n this.off(doc, 'touchend', this.handleMouseUp);\n };\n\n return ProgressControl;\n}(Component);\n\n/**\n * Default options for `ProgressControl`\n *\n * @type {Object}\n * @private\n */\n\n\nProgressControl.prototype.options_ = {\n children: ['seekBar']\n};\n\nComponent.registerComponent('ProgressControl', ProgressControl);\n\n/**\n * @file fullscreen-toggle.js\n */\n/**\n * Toggle fullscreen video\n *\n * @extends Button\n */\n\nvar FullscreenToggle = function (_Button) {\n inherits(FullscreenToggle, _Button);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function FullscreenToggle(player, options) {\n classCallCheck(this, FullscreenToggle);\n\n var _this = possibleConstructorReturn(this, _Button.call(this, player, options));\n\n _this.on(player, 'fullscreenchange', _this.handleFullscreenChange);\n\n if (document[FullscreenApi.fullscreenEnabled] === false) {\n _this.disable();\n }\n return _this;\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n FullscreenToggle.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-fullscreen-control ' + _Button.prototype.buildCSSClass.call(this);\n };\n\n /**\n * Handles fullscreenchange on the player and change control text accordingly.\n *\n * @param {EventTarget~Event} [event]\n * The {@link Player#fullscreenchange} event that caused this function to be\n * called.\n *\n * @listens Player#fullscreenchange\n */\n\n\n FullscreenToggle.prototype.handleFullscreenChange = function handleFullscreenChange(event) {\n if (this.player_.isFullscreen()) {\n this.controlText('Non-Fullscreen');\n } else {\n this.controlText('Fullscreen');\n }\n };\n\n /**\n * This gets called when an `FullscreenToggle` is \"clicked\". See\n * {@link ClickableComponent} for more detailed information on what a click can be.\n *\n * @param {EventTarget~Event} [event]\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n */\n\n\n FullscreenToggle.prototype.handleClick = function handleClick(event) {\n if (!this.player_.isFullscreen()) {\n this.player_.requestFullscreen();\n } else {\n this.player_.exitFullscreen();\n }\n };\n\n return FullscreenToggle;\n}(Button);\n\n/**\n * The text that should display over the `FullscreenToggle`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\n\nFullscreenToggle.prototype.controlText_ = 'Fullscreen';\n\nComponent.registerComponent('FullscreenToggle', FullscreenToggle);\n\n/**\n * Check if volume control is supported and if it isn't hide the\n * `Component` that was passed using the `vjs-hidden` class.\n *\n * @param {Component} self\n * The component that should be hidden if volume is unsupported\n *\n * @param {Player} player\n * A reference to the player\n *\n * @private\n */\nvar checkVolumeSupport = function checkVolumeSupport(self, player) {\n // hide volume controls when they're not supported by the current tech\n if (player.tech_ && !player.tech_.featuresVolumeControl) {\n self.addClass('vjs-hidden');\n }\n\n self.on(player, 'loadstart', function () {\n if (!player.tech_.featuresVolumeControl) {\n self.addClass('vjs-hidden');\n } else {\n self.removeClass('vjs-hidden');\n }\n });\n};\n\n/**\n * @file volume-level.js\n */\n/**\n * Shows volume level\n *\n * @extends Component\n */\n\nvar VolumeLevel = function (_Component) {\n inherits(VolumeLevel, _Component);\n\n function VolumeLevel() {\n classCallCheck(this, VolumeLevel);\n return possibleConstructorReturn(this, _Component.apply(this, arguments));\n }\n\n /**\n * Create the `Component`'s DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n VolumeLevel.prototype.createEl = function createEl() {\n return _Component.prototype.createEl.call(this, 'div', {\n className: 'vjs-volume-level',\n innerHTML: '<span class=\"vjs-control-text\"></span>'\n });\n };\n\n return VolumeLevel;\n}(Component);\n\nComponent.registerComponent('VolumeLevel', VolumeLevel);\n\n/**\n * @file volume-bar.js\n */\n// Required children\n/**\n * The bar that contains the volume level and can be clicked on to adjust the level\n *\n * @extends Slider\n */\n\nvar VolumeBar = function (_Slider) {\n inherits(VolumeBar, _Slider);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function VolumeBar(player, options) {\n classCallCheck(this, VolumeBar);\n\n var _this = possibleConstructorReturn(this, _Slider.call(this, player, options));\n\n _this.on('slideractive', _this.updateLastVolume_);\n _this.on(player, 'volumechange', _this.updateARIAAttributes);\n player.ready(function () {\n return _this.updateARIAAttributes();\n });\n return _this;\n }\n\n /**\n * Create the `Component`'s DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n\n\n VolumeBar.prototype.createEl = function createEl$$1() {\n return _Slider.prototype.createEl.call(this, 'div', {\n className: 'vjs-volume-bar vjs-slider-bar'\n }, {\n 'aria-label': this.localize('Volume Level'),\n 'aria-live': 'polite'\n });\n };\n\n /**\n * Handle mouse down on volume bar\n *\n * @param {EventTarget~Event} event\n * The `mousedown` event that caused this to run.\n *\n * @listens mousedown\n */\n\n\n VolumeBar.prototype.handleMouseDown = function handleMouseDown(event) {\n if (!isSingleLeftClick(event)) {\n return;\n }\n\n _Slider.prototype.handleMouseDown.call(this, event);\n };\n\n /**\n * Handle movement events on the {@link VolumeMenuButton}.\n *\n * @param {EventTarget~Event} event\n * The event that caused this function to run.\n *\n * @listens mousemove\n */\n\n\n VolumeBar.prototype.handleMouseMove = function handleMouseMove(event) {\n if (!isSingleLeftClick(event)) {\n return;\n }\n\n this.checkMuted();\n this.player_.volume(this.calculateDistance(event));\n };\n\n /**\n * If the player is muted unmute it.\n */\n\n\n VolumeBar.prototype.checkMuted = function checkMuted() {\n if (this.player_.muted()) {\n this.player_.muted(false);\n }\n };\n\n /**\n * Get percent of volume level\n *\n * @return {number}\n * Volume level percent as a decimal number.\n */\n\n\n VolumeBar.prototype.getPercent = function getPercent() {\n if (this.player_.muted()) {\n return 0;\n }\n return this.player_.volume();\n };\n\n /**\n * Increase volume level for keyboard users\n */\n\n\n VolumeBar.prototype.stepForward = function stepForward() {\n this.checkMuted();\n this.player_.volume(this.player_.volume() + 0.1);\n };\n\n /**\n * Decrease volume level for keyboard users\n */\n\n\n VolumeBar.prototype.stepBack = function stepBack() {\n this.checkMuted();\n this.player_.volume(this.player_.volume() - 0.1);\n };\n\n /**\n * Update ARIA accessibility attributes\n *\n * @param {EventTarget~Event} [event]\n * The `volumechange` event that caused this function to run.\n *\n * @listens Player#volumechange\n */\n\n\n VolumeBar.prototype.updateARIAAttributes = function updateARIAAttributes(event) {\n var ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();\n\n this.el_.setAttribute('aria-valuenow', ariaValue);\n this.el_.setAttribute('aria-valuetext', ariaValue + '%');\n };\n\n /**\n * Returns the current value of the player volume as a percentage\n *\n * @private\n */\n\n\n VolumeBar.prototype.volumeAsPercentage_ = function volumeAsPercentage_() {\n return Math.round(this.player_.volume() * 100);\n };\n\n /**\n * When user starts dragging the VolumeBar, store the volume and listen for\n * the end of the drag. When the drag ends, if the volume was set to zero,\n * set lastVolume to the stored volume.\n *\n * @listens slideractive\n * @private\n */\n\n\n VolumeBar.prototype.updateLastVolume_ = function updateLastVolume_() {\n var _this2 = this;\n\n var volumeBeforeDrag = this.player_.volume();\n\n this.one('sliderinactive', function () {\n if (_this2.player_.volume() === 0) {\n _this2.player_.lastVolume_(volumeBeforeDrag);\n }\n });\n };\n\n return VolumeBar;\n}(Slider);\n\n/**\n * Default options for the `VolumeBar`\n *\n * @type {Object}\n * @private\n */\n\n\nVolumeBar.prototype.options_ = {\n children: ['volumeLevel'],\n barName: 'volumeLevel'\n};\n\n/**\n * Call the update event for this Slider when this event happens on the player.\n *\n * @type {string}\n */\nVolumeBar.prototype.playerEvent = 'volumechange';\n\nComponent.registerComponent('VolumeBar', VolumeBar);\n\n/**\n * @file volume-control.js\n */\n// Required children\n/**\n * The component for controlling the volume level\n *\n * @extends Component\n */\n\nvar VolumeControl = function (_Component) {\n inherits(VolumeControl, _Component);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options={}]\n * The key/value store of player options.\n */\n function VolumeControl(player) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n classCallCheck(this, VolumeControl);\n\n options.vertical = options.vertical || false;\n\n // Pass the vertical option down to the VolumeBar if\n // the VolumeBar is turned on.\n if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {\n options.volumeBar = options.volumeBar || {};\n options.volumeBar.vertical = options.vertical;\n }\n\n // hide this control if volume support is missing\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options));\n\n checkVolumeSupport(_this, player);\n\n _this.throttledHandleMouseMove = throttle(bind(_this, _this.handleMouseMove), 25);\n\n _this.on('mousedown', _this.handleMouseDown);\n _this.on('touchstart', _this.handleMouseDown);\n\n // while the slider is active (the mouse has been pressed down and\n // is dragging) or in focus we do not want to hide the VolumeBar\n _this.on(_this.volumeBar, ['focus', 'slideractive'], function () {\n _this.volumeBar.addClass('vjs-slider-active');\n _this.addClass('vjs-slider-active');\n _this.trigger('slideractive');\n });\n\n _this.on(_this.volumeBar, ['blur', 'sliderinactive'], function () {\n _this.volumeBar.removeClass('vjs-slider-active');\n _this.removeClass('vjs-slider-active');\n _this.trigger('sliderinactive');\n });\n return _this;\n }\n\n /**\n * Create the `Component`'s DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n\n\n VolumeControl.prototype.createEl = function createEl() {\n var orientationClass = 'vjs-volume-horizontal';\n\n if (this.options_.vertical) {\n orientationClass = 'vjs-volume-vertical';\n }\n\n return _Component.prototype.createEl.call(this, 'div', {\n className: 'vjs-volume-control vjs-control ' + orientationClass\n });\n };\n\n /**\n * Handle `mousedown` or `touchstart` events on the `VolumeControl`.\n *\n * @param {EventTarget~Event} event\n * `mousedown` or `touchstart` event that triggered this function\n *\n * @listens mousedown\n * @listens touchstart\n */\n\n\n VolumeControl.prototype.handleMouseDown = function handleMouseDown(event) {\n var doc = this.el_.ownerDocument;\n\n this.on(doc, 'mousemove', this.throttledHandleMouseMove);\n this.on(doc, 'touchmove', this.throttledHandleMouseMove);\n this.on(doc, 'mouseup', this.handleMouseUp);\n this.on(doc, 'touchend', this.handleMouseUp);\n };\n\n /**\n * Handle `mouseup` or `touchend` events on the `VolumeControl`.\n *\n * @param {EventTarget~Event} event\n * `mouseup` or `touchend` event that triggered this function.\n *\n * @listens touchend\n * @listens mouseup\n */\n\n\n VolumeControl.prototype.handleMouseUp = function handleMouseUp(event) {\n var doc = this.el_.ownerDocument;\n\n this.off(doc, 'mousemove', this.throttledHandleMouseMove);\n this.off(doc, 'touchmove', this.throttledHandleMouseMove);\n this.off(doc, 'mouseup', this.handleMouseUp);\n this.off(doc, 'touchend', this.handleMouseUp);\n };\n\n /**\n * Handle `mousedown` or `touchstart` events on the `VolumeControl`.\n *\n * @param {EventTarget~Event} event\n * `mousedown` or `touchstart` event that triggered this function\n *\n * @listens mousedown\n * @listens touchstart\n */\n\n\n VolumeControl.prototype.handleMouseMove = function handleMouseMove(event) {\n this.volumeBar.handleMouseMove(event);\n };\n\n return VolumeControl;\n}(Component);\n\n/**\n * Default options for the `VolumeControl`\n *\n * @type {Object}\n * @private\n */\n\n\nVolumeControl.prototype.options_ = {\n children: ['volumeBar']\n};\n\nComponent.registerComponent('VolumeControl', VolumeControl);\n\n/**\n * Check if muting volume is supported and if it isn't hide the mute toggle\n * button.\n *\n * @param {Component} self\n * A reference to the mute toggle button\n *\n * @param {Player} player\n * A reference to the player\n *\n * @private\n */\nvar checkMuteSupport = function checkMuteSupport(self, player) {\n // hide mute toggle button if it's not supported by the current tech\n if (player.tech_ && !player.tech_.featuresMuteControl) {\n self.addClass('vjs-hidden');\n }\n\n self.on(player, 'loadstart', function () {\n if (!player.tech_.featuresMuteControl) {\n self.addClass('vjs-hidden');\n } else {\n self.removeClass('vjs-hidden');\n }\n });\n};\n\n/**\n * @file mute-toggle.js\n */\n/**\n * A button component for muting the audio.\n *\n * @extends Button\n */\n\nvar MuteToggle = function (_Button) {\n inherits(MuteToggle, _Button);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function MuteToggle(player, options) {\n classCallCheck(this, MuteToggle);\n\n // hide this control if volume support is missing\n var _this = possibleConstructorReturn(this, _Button.call(this, player, options));\n\n checkMuteSupport(_this, player);\n\n _this.on(player, ['loadstart', 'volumechange'], _this.update);\n return _this;\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n MuteToggle.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-mute-control ' + _Button.prototype.buildCSSClass.call(this);\n };\n\n /**\n * This gets called when an `MuteToggle` is \"clicked\". See\n * {@link ClickableComponent} for more detailed information on what a click can be.\n *\n * @param {EventTarget~Event} [event]\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n */\n\n\n MuteToggle.prototype.handleClick = function handleClick(event) {\n var vol = this.player_.volume();\n var lastVolume = this.player_.lastVolume_();\n\n if (vol === 0) {\n var volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;\n\n this.player_.volume(volumeToSet);\n this.player_.muted(false);\n } else {\n this.player_.muted(this.player_.muted() ? false : true);\n }\n };\n\n /**\n * Update the `MuteToggle` button based on the state of `volume` and `muted`\n * on the player.\n *\n * @param {EventTarget~Event} [event]\n * The {@link Player#loadstart} event if this function was called\n * through an event.\n *\n * @listens Player#loadstart\n * @listens Player#volumechange\n */\n\n\n MuteToggle.prototype.update = function update(event) {\n this.updateIcon_();\n this.updateControlText_();\n };\n\n /**\n * Update the appearance of the `MuteToggle` icon.\n *\n * Possible states (given `level` variable below):\n * - 0: crossed out\n * - 1: zero bars of volume\n * - 2: one bar of volume\n * - 3: two bars of volume\n *\n * @private\n */\n\n\n MuteToggle.prototype.updateIcon_ = function updateIcon_() {\n var vol = this.player_.volume();\n var level = 3;\n\n // in iOS when a player is loaded with muted attribute\n // and volume is changed with a native mute button\n // we want to make sure muted state is updated\n if (IS_IOS) {\n this.player_.muted(this.player_.tech_.el_.muted);\n }\n\n if (vol === 0 || this.player_.muted()) {\n level = 0;\n } else if (vol < 0.33) {\n level = 1;\n } else if (vol < 0.67) {\n level = 2;\n }\n\n // TODO improve muted icon classes\n for (var i = 0; i < 4; i++) {\n removeClass(this.el_, 'vjs-vol-' + i);\n }\n addClass(this.el_, 'vjs-vol-' + level);\n };\n\n /**\n * If `muted` has changed on the player, update the control text\n * (`title` attribute on `vjs-mute-control` element and content of\n * `vjs-control-text` element).\n *\n * @private\n */\n\n\n MuteToggle.prototype.updateControlText_ = function updateControlText_() {\n var soundOff = this.player_.muted() || this.player_.volume() === 0;\n var text = soundOff ? 'Unmute' : 'Mute';\n\n if (this.controlText() !== text) {\n this.controlText(text);\n }\n };\n\n return MuteToggle;\n}(Button);\n\n/**\n * The text that should display over the `MuteToggle`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\n\nMuteToggle.prototype.controlText_ = 'Mute';\n\nComponent.registerComponent('MuteToggle', MuteToggle);\n\n/**\n * @file volume-control.js\n */\n// Required children\n/**\n * A Component to contain the MuteToggle and VolumeControl so that\n * they can work together.\n *\n * @extends Component\n */\n\nvar VolumePanel = function (_Component) {\n inherits(VolumePanel, _Component);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options={}]\n * The key/value store of player options.\n */\n function VolumePanel(player) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n classCallCheck(this, VolumePanel);\n\n if (typeof options.inline !== 'undefined') {\n options.inline = options.inline;\n } else {\n options.inline = true;\n }\n\n // pass the inline option down to the VolumeControl as vertical if\n // the VolumeControl is on.\n if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {\n options.volumeControl = options.volumeControl || {};\n options.volumeControl.vertical = !options.inline;\n }\n\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options));\n\n _this.on(player, ['loadstart'], _this.volumePanelState_);\n\n // while the slider is active (the mouse has been pressed down and\n // is dragging) we do not want to hide the VolumeBar\n _this.on(_this.volumeControl, ['slideractive'], _this.sliderActive_);\n\n _this.on(_this.volumeControl, ['sliderinactive'], _this.sliderInactive_);\n return _this;\n }\n\n /**\n * Add vjs-slider-active class to the VolumePanel\n *\n * @listens VolumeControl#slideractive\n * @private\n */\n\n\n VolumePanel.prototype.sliderActive_ = function sliderActive_() {\n this.addClass('vjs-slider-active');\n };\n\n /**\n * Removes vjs-slider-active class to the VolumePanel\n *\n * @listens VolumeControl#sliderinactive\n * @private\n */\n\n\n VolumePanel.prototype.sliderInactive_ = function sliderInactive_() {\n this.removeClass('vjs-slider-active');\n };\n\n /**\n * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel\n * depending on MuteToggle and VolumeControl state\n *\n * @listens Player#loadstart\n * @private\n */\n\n\n VolumePanel.prototype.volumePanelState_ = function volumePanelState_() {\n // hide volume panel if neither volume control or mute toggle\n // are displayed\n if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {\n this.addClass('vjs-hidden');\n }\n\n // if only mute toggle is visible we don't want\n // volume panel expanding when hovered or active\n if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {\n this.addClass('vjs-mute-toggle-only');\n }\n };\n\n /**\n * Create the `Component`'s DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n\n\n VolumePanel.prototype.createEl = function createEl() {\n var orientationClass = 'vjs-volume-panel-horizontal';\n\n if (!this.options_.inline) {\n orientationClass = 'vjs-volume-panel-vertical';\n }\n\n return _Component.prototype.createEl.call(this, 'div', {\n className: 'vjs-volume-panel vjs-control ' + orientationClass\n });\n };\n\n return VolumePanel;\n}(Component);\n\n/**\n * Default options for the `VolumeControl`\n *\n * @type {Object}\n * @private\n */\n\n\nVolumePanel.prototype.options_ = {\n children: ['muteToggle', 'volumeControl']\n};\n\nComponent.registerComponent('VolumePanel', VolumePanel);\n\n/**\n * @file menu.js\n */\n/**\n * The Menu component is used to build popup menus, including subtitle and\n * captions selection menus.\n *\n * @extends Component\n */\n\nvar Menu = function (_Component) {\n inherits(Menu, _Component);\n\n /**\n * Create an instance of this class.\n *\n * @param {Player} player\n * the player that this component should attach to\n *\n * @param {Object} [options]\n * Object of option names and values\n *\n */\n function Menu(player, options) {\n classCallCheck(this, Menu);\n\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options));\n\n if (options) {\n _this.menuButton_ = options.menuButton;\n }\n\n _this.focusedChild_ = -1;\n\n _this.on('keydown', _this.handleKeyPress);\n return _this;\n }\n\n /**\n * Add a {@link MenuItem} to the menu.\n *\n * @param {Object|string} component\n * The name or instance of the `MenuItem` to add.\n *\n */\n\n\n Menu.prototype.addItem = function addItem(component) {\n this.addChild(component);\n component.on('click', bind(this, function (event) {\n // Unpress the associated MenuButton, and move focus back to it\n if (this.menuButton_) {\n this.menuButton_.unpressButton();\n\n // don't focus menu button if item is a caption settings item\n // because focus will move elsewhere and it logs an error on IE8\n if (component.name() !== 'CaptionSettingsMenuItem') {\n this.menuButton_.focus();\n }\n }\n }));\n };\n\n /**\n * Create the `Menu`s DOM element.\n *\n * @return {Element}\n * the element that was created\n */\n\n\n Menu.prototype.createEl = function createEl$$1() {\n var contentElType = this.options_.contentElType || 'ul';\n\n this.contentEl_ = createEl(contentElType, {\n className: 'vjs-menu-content'\n });\n\n this.contentEl_.setAttribute('role', 'menu');\n\n var el = _Component.prototype.createEl.call(this, 'div', {\n append: this.contentEl_,\n className: 'vjs-menu'\n });\n\n el.appendChild(this.contentEl_);\n\n // Prevent clicks from bubbling up. Needed for Menu Buttons,\n // where a click on the parent is significant\n on(el, 'click', function (event) {\n event.preventDefault();\n event.stopImmediatePropagation();\n });\n\n return el;\n };\n\n Menu.prototype.dispose = function dispose() {\n this.contentEl_ = null;\n\n _Component.prototype.dispose.call(this);\n };\n\n /**\n * Handle a `keydown` event on this menu. This listener is added in the constructor.\n *\n * @param {EventTarget~Event} event\n * A `keydown` event that happened on the menu.\n *\n * @listens keydown\n */\n\n\n Menu.prototype.handleKeyPress = function handleKeyPress(event) {\n // Left and Down Arrows\n if (event.which === 37 || event.which === 40) {\n event.preventDefault();\n this.stepForward();\n\n // Up and Right Arrows\n } else if (event.which === 38 || event.which === 39) {\n event.preventDefault();\n this.stepBack();\n }\n };\n\n /**\n * Move to next (lower) menu item for keyboard users.\n */\n\n\n Menu.prototype.stepForward = function stepForward() {\n var stepChild = 0;\n\n if (this.focusedChild_ !== undefined) {\n stepChild = this.focusedChild_ + 1;\n }\n this.focus(stepChild);\n };\n\n /**\n * Move to previous (higher) menu item for keyboard users.\n */\n\n\n Menu.prototype.stepBack = function stepBack() {\n var stepChild = 0;\n\n if (this.focusedChild_ !== undefined) {\n stepChild = this.focusedChild_ - 1;\n }\n this.focus(stepChild);\n };\n\n /**\n * Set focus on a {@link MenuItem} in the `Menu`.\n *\n * @param {Object|string} [item=0]\n * Index of child item set focus on.\n */\n\n\n Menu.prototype.focus = function focus() {\n var item = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;\n\n var children = this.children().slice();\n var haveTitle = children.length && children[0].className && /vjs-menu-title/.test(children[0].className);\n\n if (haveTitle) {\n children.shift();\n }\n\n if (children.length > 0) {\n if (item < 0) {\n item = 0;\n } else if (item >= children.length) {\n item = children.length - 1;\n }\n\n this.focusedChild_ = item;\n\n children[item].el_.focus();\n }\n };\n\n return Menu;\n}(Component);\n\nComponent.registerComponent('Menu', Menu);\n\n/**\n * @file menu-button.js\n */\n/**\n * A `MenuButton` class for any popup {@link Menu}.\n *\n * @extends Component\n */\n\nvar MenuButton = function (_Component) {\n inherits(MenuButton, _Component);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options={}]\n * The key/value store of player options.\n */\n function MenuButton(player) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n classCallCheck(this, MenuButton);\n\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options));\n\n _this.menuButton_ = new Button(player, options);\n\n _this.menuButton_.controlText(_this.controlText_);\n _this.menuButton_.el_.setAttribute('aria-haspopup', 'true');\n\n // Add buildCSSClass values to the button, not the wrapper\n var buttonClass = Button.prototype.buildCSSClass();\n\n _this.menuButton_.el_.className = _this.buildCSSClass() + ' ' + buttonClass;\n _this.menuButton_.removeClass('vjs-control');\n\n _this.addChild(_this.menuButton_);\n\n _this.update();\n\n _this.enabled_ = true;\n\n _this.on(_this.menuButton_, 'tap', _this.handleClick);\n _this.on(_this.menuButton_, 'click', _this.handleClick);\n _this.on(_this.menuButton_, 'focus', _this.handleFocus);\n _this.on(_this.menuButton_, 'blur', _this.handleBlur);\n\n _this.on('keydown', _this.handleSubmenuKeyPress);\n return _this;\n }\n\n /**\n * Update the menu based on the current state of its items.\n */\n\n\n MenuButton.prototype.update = function update() {\n var menu = this.createMenu();\n\n if (this.menu) {\n this.menu.dispose();\n this.removeChild(this.menu);\n }\n\n this.menu = menu;\n this.addChild(menu);\n\n /**\n * Track the state of the menu button\n *\n * @type {Boolean}\n * @private\n */\n this.buttonPressed_ = false;\n this.menuButton_.el_.setAttribute('aria-expanded', 'false');\n\n if (this.items && this.items.length <= this.hideThreshold_) {\n this.hide();\n } else {\n this.show();\n }\n };\n\n /**\n * Create the menu and add all items to it.\n *\n * @return {Menu}\n * The constructed menu\n */\n\n\n MenuButton.prototype.createMenu = function createMenu() {\n var menu = new Menu(this.player_, { menuButton: this });\n\n /**\n * Hide the menu if the number of items is less than or equal to this threshold. This defaults\n * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list\n * it here because every time we run `createMenu` we need to reset the value.\n *\n * @protected\n * @type {Number}\n */\n this.hideThreshold_ = 0;\n\n // Add a title list item to the top\n if (this.options_.title) {\n var title = createEl('li', {\n className: 'vjs-menu-title',\n innerHTML: toTitleCase(this.options_.title),\n tabIndex: -1\n });\n\n this.hideThreshold_ += 1;\n\n menu.children_.unshift(title);\n prependTo(title, menu.contentEl());\n }\n\n this.items = this.createItems();\n\n if (this.items) {\n // Add menu items to the menu\n for (var i = 0; i < this.items.length; i++) {\n menu.addItem(this.items[i]);\n }\n }\n\n return menu;\n };\n\n /**\n * Create the list of menu items. Specific to each subclass.\n *\n * @abstract\n */\n\n\n MenuButton.prototype.createItems = function createItems() {};\n\n /**\n * Create the `MenuButtons`s DOM element.\n *\n * @return {Element}\n * The element that gets created.\n */\n\n\n MenuButton.prototype.createEl = function createEl$$1() {\n return _Component.prototype.createEl.call(this, 'div', {\n className: this.buildWrapperCSSClass()\n }, {});\n };\n\n /**\n * Allow sub components to stack CSS class names for the wrapper element\n *\n * @return {string}\n * The constructed wrapper DOM `className`\n */\n\n\n MenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {\n var menuButtonClass = 'vjs-menu-button';\n\n // If the inline option is passed, we want to use different styles altogether.\n if (this.options_.inline === true) {\n menuButtonClass += '-inline';\n } else {\n menuButtonClass += '-popup';\n }\n\n // TODO: Fix the CSS so that this isn't necessary\n var buttonClass = Button.prototype.buildCSSClass();\n\n return 'vjs-menu-button ' + menuButtonClass + ' ' + buttonClass + ' ' + _Component.prototype.buildCSSClass.call(this);\n };\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n MenuButton.prototype.buildCSSClass = function buildCSSClass() {\n var menuButtonClass = 'vjs-menu-button';\n\n // If the inline option is passed, we want to use different styles altogether.\n if (this.options_.inline === true) {\n menuButtonClass += '-inline';\n } else {\n menuButtonClass += '-popup';\n }\n\n return 'vjs-menu-button ' + menuButtonClass + ' ' + _Component.prototype.buildCSSClass.call(this);\n };\n\n /**\n * Get or set the localized control text that will be used for accessibility.\n *\n * > NOTE: This will come from the internal `menuButton_` element.\n *\n * @param {string} [text]\n * Control text for element.\n *\n * @param {Element} [el=this.menuButton_.el()]\n * Element to set the title on.\n *\n * @return {string}\n * - The control text when getting\n */\n\n\n MenuButton.prototype.controlText = function controlText(text) {\n var el = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.menuButton_.el();\n\n return this.menuButton_.controlText(text, el);\n };\n\n /**\n * Handle a click on a `MenuButton`.\n * See {@link ClickableComponent#handleClick} for instances where this is called.\n *\n * @param {EventTarget~Event} event\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n */\n\n\n MenuButton.prototype.handleClick = function handleClick(event) {\n // When you click the button it adds focus, which will show the menu.\n // So we'll remove focus when the mouse leaves the button. Focus is needed\n // for tab navigation.\n\n this.one(this.menu.contentEl(), 'mouseleave', bind(this, function (e) {\n this.unpressButton();\n this.el_.blur();\n }));\n if (this.buttonPressed_) {\n this.unpressButton();\n } else {\n this.pressButton();\n }\n };\n\n /**\n * Set the focus to the actual button, not to this element\n */\n\n\n MenuButton.prototype.focus = function focus() {\n this.menuButton_.focus();\n };\n\n /**\n * Remove the focus from the actual button, not this element\n */\n\n\n MenuButton.prototype.blur = function blur() {\n this.menuButton_.blur();\n };\n\n /**\n * This gets called when a `MenuButton` gains focus via a `focus` event.\n * Turns on listening for `keydown` events. When they happen it\n * calls `this.handleKeyPress`.\n *\n * @param {EventTarget~Event} event\n * The `focus` event that caused this function to be called.\n *\n * @listens focus\n */\n\n\n MenuButton.prototype.handleFocus = function handleFocus() {\n on(document, 'keydown', bind(this, this.handleKeyPress));\n };\n\n /**\n * Called when a `MenuButton` loses focus. Turns off the listener for\n * `keydown` events. Which Stops `this.handleKeyPress` from getting called.\n *\n * @param {EventTarget~Event} event\n * The `blur` event that caused this function to be called.\n *\n * @listens blur\n */\n\n\n MenuButton.prototype.handleBlur = function handleBlur() {\n off(document, 'keydown', bind(this, this.handleKeyPress));\n };\n\n /**\n * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See\n * {@link ClickableComponent#handleKeyPress} for instances where this is called.\n *\n * @param {EventTarget~Event} event\n * The `keydown` event that caused this function to be called.\n *\n * @listens keydown\n */\n\n\n MenuButton.prototype.handleKeyPress = function handleKeyPress(event) {\n\n // Escape (27) key or Tab (9) key unpress the 'button'\n if (event.which === 27 || event.which === 9) {\n if (this.buttonPressed_) {\n this.unpressButton();\n }\n // Don't preventDefault for Tab key - we still want to lose focus\n if (event.which !== 9) {\n event.preventDefault();\n // Set focus back to the menu button's button\n this.menuButton_.el_.focus();\n }\n // Up (38) key or Down (40) key press the 'button'\n } else if (event.which === 38 || event.which === 40) {\n if (!this.buttonPressed_) {\n this.pressButton();\n event.preventDefault();\n }\n }\n };\n\n /**\n * Handle a `keydown` event on a sub-menu. The listener for this is added in\n * the constructor.\n *\n * @param {EventTarget~Event} event\n * Key press event\n *\n * @listens keydown\n */\n\n\n MenuButton.prototype.handleSubmenuKeyPress = function handleSubmenuKeyPress(event) {\n\n // Escape (27) key or Tab (9) key unpress the 'button'\n if (event.which === 27 || event.which === 9) {\n if (this.buttonPressed_) {\n this.unpressButton();\n }\n // Don't preventDefault for Tab key - we still want to lose focus\n if (event.which !== 9) {\n event.preventDefault();\n // Set focus back to the menu button's button\n this.menuButton_.el_.focus();\n }\n }\n };\n\n /**\n * Put the current `MenuButton` into a pressed state.\n */\n\n\n MenuButton.prototype.pressButton = function pressButton() {\n if (this.enabled_) {\n this.buttonPressed_ = true;\n this.menu.lockShowing();\n this.menuButton_.el_.setAttribute('aria-expanded', 'true');\n\n // set the focus into the submenu, except on iOS where it is resulting in\n // undesired scrolling behavior when the player is in an iframe\n if (IS_IOS && isInFrame()) {\n // Return early so that the menu isn't focused\n return;\n }\n\n this.menu.focus();\n }\n };\n\n /**\n * Take the current `MenuButton` out of a pressed state.\n */\n\n\n MenuButton.prototype.unpressButton = function unpressButton() {\n if (this.enabled_) {\n this.buttonPressed_ = false;\n this.menu.unlockShowing();\n this.menuButton_.el_.setAttribute('aria-expanded', 'false');\n }\n };\n\n /**\n * Disable the `MenuButton`. Don't allow it to be clicked.\n */\n\n\n MenuButton.prototype.disable = function disable() {\n this.unpressButton();\n\n this.enabled_ = false;\n this.addClass('vjs-disabled');\n\n this.menuButton_.disable();\n };\n\n /**\n * Enable the `MenuButton`. Allow it to be clicked.\n */\n\n\n MenuButton.prototype.enable = function enable() {\n this.enabled_ = true;\n this.removeClass('vjs-disabled');\n\n this.menuButton_.enable();\n };\n\n return MenuButton;\n}(Component);\n\nComponent.registerComponent('MenuButton', MenuButton);\n\n/**\n * @file track-button.js\n */\n/**\n * The base class for buttons that toggle specific track types (e.g. subtitles).\n *\n * @extends MenuButton\n */\n\nvar TrackButton = function (_MenuButton) {\n inherits(TrackButton, _MenuButton);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function TrackButton(player, options) {\n classCallCheck(this, TrackButton);\n\n var tracks = options.tracks;\n\n var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));\n\n if (_this.items.length <= 1) {\n _this.hide();\n }\n\n if (!tracks) {\n return possibleConstructorReturn(_this);\n }\n\n var updateHandler = bind(_this, _this.update);\n\n tracks.addEventListener('removetrack', updateHandler);\n tracks.addEventListener('addtrack', updateHandler);\n _this.player_.on('ready', updateHandler);\n\n _this.player_.on('dispose', function () {\n tracks.removeEventListener('removetrack', updateHandler);\n tracks.removeEventListener('addtrack', updateHandler);\n });\n return _this;\n }\n\n return TrackButton;\n}(MenuButton);\n\nComponent.registerComponent('TrackButton', TrackButton);\n\n/**\n * @file menu-item.js\n */\n/**\n * The component for a menu item. `<li>`\n *\n * @extends ClickableComponent\n */\n\nvar MenuItem = function (_ClickableComponent) {\n inherits(MenuItem, _ClickableComponent);\n\n /**\n * Creates an instance of the this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options={}]\n * The key/value store of player options.\n *\n */\n function MenuItem(player, options) {\n classCallCheck(this, MenuItem);\n\n var _this = possibleConstructorReturn(this, _ClickableComponent.call(this, player, options));\n\n _this.selectable = options.selectable;\n _this.isSelected_ = options.selected || false;\n _this.multiSelectable = options.multiSelectable;\n\n _this.selected(_this.isSelected_);\n\n if (_this.selectable) {\n if (_this.multiSelectable) {\n _this.el_.setAttribute('role', 'menuitemcheckbox');\n } else {\n _this.el_.setAttribute('role', 'menuitemradio');\n }\n } else {\n _this.el_.setAttribute('role', 'menuitem');\n }\n return _this;\n }\n\n /**\n * Create the `MenuItem's DOM element\n *\n * @param {string} [type=li]\n * Element's node type, not actually used, always set to `li`.\n *\n * @param {Object} [props={}]\n * An object of properties that should be set on the element\n *\n * @param {Object} [attrs={}]\n * An object of attributes that should be set on the element\n *\n * @return {Element}\n * The element that gets created.\n */\n\n\n MenuItem.prototype.createEl = function createEl(type, props, attrs) {\n // The control is textual, not just an icon\n this.nonIconControl = true;\n\n return _ClickableComponent.prototype.createEl.call(this, 'li', assign({\n className: 'vjs-menu-item',\n innerHTML: '<span class=\"vjs-menu-item-text\">' + this.localize(this.options_.label) + '</span>',\n tabIndex: -1\n }, props), attrs);\n };\n\n /**\n * Any click on a `MenuItem` puts it into the selected state.\n * See {@link ClickableComponent#handleClick} for instances where this is called.\n *\n * @param {EventTarget~Event} event\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n */\n\n\n MenuItem.prototype.handleClick = function handleClick(event) {\n this.selected(true);\n };\n\n /**\n * Set the state for this menu item as selected or not.\n *\n * @param {boolean} selected\n * if the menu item is selected or not\n */\n\n\n MenuItem.prototype.selected = function selected(_selected) {\n if (this.selectable) {\n if (_selected) {\n this.addClass('vjs-selected');\n this.el_.setAttribute('aria-checked', 'true');\n // aria-checked isn't fully supported by browsers/screen readers,\n // so indicate selected state to screen reader in the control text.\n this.controlText(', selected');\n this.isSelected_ = true;\n } else {\n this.removeClass('vjs-selected');\n this.el_.setAttribute('aria-checked', 'false');\n // Indicate un-selected state to screen reader\n this.controlText('');\n this.isSelected_ = false;\n }\n }\n };\n\n return MenuItem;\n}(ClickableComponent);\n\nComponent.registerComponent('MenuItem', MenuItem);\n\n/**\n * @file text-track-menu-item.js\n */\n/**\n * The specific menu item type for selecting a language within a text track kind\n *\n * @extends MenuItem\n */\n\nvar TextTrackMenuItem = function (_MenuItem) {\n inherits(TextTrackMenuItem, _MenuItem);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function TextTrackMenuItem(player, options) {\n classCallCheck(this, TextTrackMenuItem);\n\n var track = options.track;\n var tracks = player.textTracks();\n\n // Modify options for parent MenuItem class's init.\n options.label = track.label || track.language || 'Unknown';\n options.selected = track.mode === 'showing';\n\n var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));\n\n _this.track = track;\n var changeHandler = function changeHandler() {\n for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n _this.handleTracksChange.apply(_this, args);\n };\n var selectedLanguageChangeHandler = function selectedLanguageChangeHandler() {\n for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n args[_key2] = arguments[_key2];\n }\n\n _this.handleSelectedLanguageChange.apply(_this, args);\n };\n\n player.on(['loadstart', 'texttrackchange'], changeHandler);\n tracks.addEventListener('change', changeHandler);\n tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);\n _this.on('dispose', function () {\n player.off(['loadstart', 'texttrackchange'], changeHandler);\n tracks.removeEventListener('change', changeHandler);\n tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);\n });\n\n // iOS7 doesn't dispatch change events to TextTrackLists when an\n // associated track's mode changes. Without something like\n // Object.observe() (also not present on iOS7), it's not\n // possible to detect changes to the mode attribute and polyfill\n // the change event. As a poor substitute, we manually dispatch\n // change events whenever the controls modify the mode.\n if (tracks.onchange === undefined) {\n var event = void 0;\n\n _this.on(['tap', 'click'], function () {\n if (_typeof(window.Event) !== 'object') {\n // Android 2.3 throws an Illegal Constructor error for window.Event\n try {\n event = new window.Event('change');\n } catch (err) {\n // continue regardless of error\n }\n }\n\n if (!event) {\n event = document.createEvent('Event');\n event.initEvent('change', true, true);\n }\n\n tracks.dispatchEvent(event);\n });\n }\n\n // set the default state based on current tracks\n _this.handleTracksChange();\n return _this;\n }\n\n /**\n * This gets called when an `TextTrackMenuItem` is \"clicked\". See\n * {@link ClickableComponent} for more detailed information on what a click can be.\n *\n * @param {EventTarget~Event} event\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n */\n\n\n TextTrackMenuItem.prototype.handleClick = function handleClick(event) {\n var kind = this.track.kind;\n var kinds = this.track.kinds;\n var tracks = this.player_.textTracks();\n\n if (!kinds) {\n kinds = [kind];\n }\n\n _MenuItem.prototype.handleClick.call(this, event);\n\n if (!tracks) {\n return;\n }\n\n for (var i = 0; i < tracks.length; i++) {\n var track = tracks[i];\n\n if (track === this.track && kinds.indexOf(track.kind) > -1) {\n if (track.mode !== 'showing') {\n track.mode = 'showing';\n }\n } else if (track.mode !== 'disabled') {\n track.mode = 'disabled';\n }\n }\n };\n\n /**\n * Handle text track list change\n *\n * @param {EventTarget~Event} event\n * The `change` event that caused this function to be called.\n *\n * @listens TextTrackList#change\n */\n\n\n TextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {\n var shouldBeSelected = this.track.mode === 'showing';\n\n // Prevent redundant selected() calls because they may cause\n // screen readers to read the appended control text unnecessarily\n if (shouldBeSelected !== this.isSelected_) {\n this.selected(shouldBeSelected);\n }\n };\n\n TextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {\n if (this.track.mode === 'showing') {\n var selectedLanguage = this.player_.cache_.selectedLanguage;\n\n // Don't replace the kind of track across the same language\n if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {\n return;\n }\n\n this.player_.cache_.selectedLanguage = {\n enabled: true,\n language: this.track.language,\n kind: this.track.kind\n };\n }\n };\n\n TextTrackMenuItem.prototype.dispose = function dispose() {\n // remove reference to track object on dispose\n this.track = null;\n\n _MenuItem.prototype.dispose.call(this);\n };\n\n return TextTrackMenuItem;\n}(MenuItem);\n\nComponent.registerComponent('TextTrackMenuItem', TextTrackMenuItem);\n\n/**\n * @file off-text-track-menu-item.js\n */\n/**\n * A special menu item for turning of a specific type of text track\n *\n * @extends TextTrackMenuItem\n */\n\nvar OffTextTrackMenuItem = function (_TextTrackMenuItem) {\n inherits(OffTextTrackMenuItem, _TextTrackMenuItem);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function OffTextTrackMenuItem(player, options) {\n classCallCheck(this, OffTextTrackMenuItem);\n\n // Create pseudo track info\n // Requires options['kind']\n options.track = {\n player: player,\n kind: options.kind,\n kinds: options.kinds,\n 'default': false,\n mode: 'disabled'\n };\n\n if (!options.kinds) {\n options.kinds = [options.kind];\n }\n\n if (options.label) {\n options.track.label = options.label;\n } else {\n options.track.label = options.kinds.join(' and ') + ' off';\n }\n\n // MenuItem is selectable\n options.selectable = true;\n // MenuItem is NOT multiSelectable (i.e. only one can be marked \"selected\" at a time)\n options.multiSelectable = false;\n\n return possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));\n }\n\n /**\n * Handle text track change\n *\n * @param {EventTarget~Event} event\n * The event that caused this function to run\n */\n\n\n OffTextTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {\n var tracks = this.player().textTracks();\n var shouldBeSelected = true;\n\n for (var i = 0, l = tracks.length; i < l; i++) {\n var track = tracks[i];\n\n if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {\n shouldBeSelected = false;\n break;\n }\n }\n\n // Prevent redundant selected() calls because they may cause\n // screen readers to read the appended control text unnecessarily\n if (shouldBeSelected !== this.isSelected_) {\n this.selected(shouldBeSelected);\n }\n };\n\n OffTextTrackMenuItem.prototype.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {\n var tracks = this.player().textTracks();\n var allHidden = true;\n\n for (var i = 0, l = tracks.length; i < l; i++) {\n var track = tracks[i];\n\n if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {\n allHidden = false;\n break;\n }\n }\n\n if (allHidden) {\n this.player_.cache_.selectedLanguage = {\n enabled: false\n };\n }\n };\n\n return OffTextTrackMenuItem;\n}(TextTrackMenuItem);\n\nComponent.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);\n\n/**\n * @file text-track-button.js\n */\n/**\n * The base class for buttons that toggle specific text track types (e.g. subtitles)\n *\n * @extends MenuButton\n */\n\nvar TextTrackButton = function (_TrackButton) {\n inherits(TextTrackButton, _TrackButton);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options={}]\n * The key/value store of player options.\n */\n function TextTrackButton(player) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n classCallCheck(this, TextTrackButton);\n\n options.tracks = player.textTracks();\n\n return possibleConstructorReturn(this, _TrackButton.call(this, player, options));\n }\n\n /**\n * Create a menu item for each text track\n *\n * @param {TextTrackMenuItem[]} [items=[]]\n * Existing array of items to use during creation\n *\n * @return {TextTrackMenuItem[]}\n * Array of menu items that were created\n */\n\n\n TextTrackButton.prototype.createItems = function createItems() {\n var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];\n var TrackMenuItem = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : TextTrackMenuItem;\n\n\n // Label is an overide for the [track] off label\n // USed to localise captions/subtitles\n var label = void 0;\n\n if (this.label_) {\n label = this.label_ + ' off';\n }\n // Add an OFF menu item to turn all tracks off\n items.push(new OffTextTrackMenuItem(this.player_, {\n kinds: this.kinds_,\n kind: this.kind_,\n label: label\n }));\n\n this.hideThreshold_ += 1;\n\n var tracks = this.player_.textTracks();\n\n if (!Array.isArray(this.kinds_)) {\n this.kinds_ = [this.kind_];\n }\n\n for (var i = 0; i < tracks.length; i++) {\n var track = tracks[i];\n\n // only add tracks that are of an appropriate kind and have a label\n if (this.kinds_.indexOf(track.kind) > -1) {\n\n var item = new TrackMenuItem(this.player_, {\n track: track,\n // MenuItem is selectable\n selectable: true,\n // MenuItem is NOT multiSelectable (i.e. only one can be marked \"selected\" at a time)\n multiSelectable: false\n });\n\n item.addClass('vjs-' + track.kind + '-menu-item');\n items.push(item);\n }\n }\n\n return items;\n };\n\n return TextTrackButton;\n}(TrackButton);\n\nComponent.registerComponent('TextTrackButton', TextTrackButton);\n\n/**\n * @file chapters-track-menu-item.js\n */\n/**\n * The chapter track menu item\n *\n * @extends MenuItem\n */\n\nvar ChaptersTrackMenuItem = function (_MenuItem) {\n inherits(ChaptersTrackMenuItem, _MenuItem);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function ChaptersTrackMenuItem(player, options) {\n classCallCheck(this, ChaptersTrackMenuItem);\n\n var track = options.track;\n var cue = options.cue;\n var currentTime = player.currentTime();\n\n // Modify options for parent MenuItem class's init.\n options.selectable = true;\n options.multiSelectable = false;\n options.label = cue.text;\n options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;\n\n var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));\n\n _this.track = track;\n _this.cue = cue;\n track.addEventListener('cuechange', bind(_this, _this.update));\n return _this;\n }\n\n /**\n * This gets called when an `ChaptersTrackMenuItem` is \"clicked\". See\n * {@link ClickableComponent} for more detailed information on what a click can be.\n *\n * @param {EventTarget~Event} [event]\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n */\n\n\n ChaptersTrackMenuItem.prototype.handleClick = function handleClick(event) {\n _MenuItem.prototype.handleClick.call(this);\n this.player_.currentTime(this.cue.startTime);\n this.update(this.cue.startTime);\n };\n\n /**\n * Update chapter menu item\n *\n * @param {EventTarget~Event} [event]\n * The `cuechange` event that caused this function to run.\n *\n * @listens TextTrack#cuechange\n */\n\n\n ChaptersTrackMenuItem.prototype.update = function update(event) {\n var cue = this.cue;\n var currentTime = this.player_.currentTime();\n\n // vjs.log(currentTime, cue.startTime);\n this.selected(cue.startTime <= currentTime && currentTime < cue.endTime);\n };\n\n return ChaptersTrackMenuItem;\n}(MenuItem);\n\nComponent.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);\n\n/**\n * @file chapters-button.js\n */\n/**\n * The button component for toggling and selecting chapters\n * Chapters act much differently than other text tracks\n * Cues are navigation vs. other tracks of alternative languages\n *\n * @extends TextTrackButton\n */\n\nvar ChaptersButton = function (_TextTrackButton) {\n inherits(ChaptersButton, _TextTrackButton);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n *\n * @param {Component~ReadyCallback} [ready]\n * The function to call when this function is ready.\n */\n function ChaptersButton(player, options, ready) {\n classCallCheck(this, ChaptersButton);\n return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n ChaptersButton.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);\n };\n\n ChaptersButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {\n return 'vjs-chapters-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n };\n\n /**\n * Update the menu based on the current state of its items.\n *\n * @param {EventTarget~Event} [event]\n * An event that triggered this function to run.\n *\n * @listens TextTrackList#addtrack\n * @listens TextTrackList#removetrack\n * @listens TextTrackList#change\n */\n\n\n ChaptersButton.prototype.update = function update(event) {\n if (!this.track_ || event && (event.type === 'addtrack' || event.type === 'removetrack')) {\n this.setTrack(this.findChaptersTrack());\n }\n _TextTrackButton.prototype.update.call(this);\n };\n\n /**\n * Set the currently selected track for the chapters button.\n *\n * @param {TextTrack} track\n * The new track to select. Nothing will change if this is the currently selected\n * track.\n */\n\n\n ChaptersButton.prototype.setTrack = function setTrack(track) {\n if (this.track_ === track) {\n return;\n }\n\n if (!this.updateHandler_) {\n this.updateHandler_ = this.update.bind(this);\n }\n\n // here this.track_ refers to the old track instance\n if (this.track_) {\n var remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);\n\n if (remoteTextTrackEl) {\n remoteTextTrackEl.removeEventListener('load', this.updateHandler_);\n }\n\n this.track_ = null;\n }\n\n this.track_ = track;\n\n // here this.track_ refers to the new track instance\n if (this.track_) {\n this.track_.mode = 'hidden';\n\n var _remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);\n\n if (_remoteTextTrackEl) {\n _remoteTextTrackEl.addEventListener('load', this.updateHandler_);\n }\n }\n };\n\n /**\n * Find the track object that is currently in use by this ChaptersButton\n *\n * @return {TextTrack|undefined}\n * The current track or undefined if none was found.\n */\n\n\n ChaptersButton.prototype.findChaptersTrack = function findChaptersTrack() {\n var tracks = this.player_.textTracks() || [];\n\n for (var i = tracks.length - 1; i >= 0; i--) {\n // We will always choose the last track as our chaptersTrack\n var track = tracks[i];\n\n if (track.kind === this.kind_) {\n return track;\n }\n }\n };\n\n /**\n * Get the caption for the ChaptersButton based on the track label. This will also\n * use the current tracks localized kind as a fallback if a label does not exist.\n *\n * @return {string}\n * The tracks current label or the localized track kind.\n */\n\n\n ChaptersButton.prototype.getMenuCaption = function getMenuCaption() {\n if (this.track_ && this.track_.label) {\n return this.track_.label;\n }\n return this.localize(toTitleCase(this.kind_));\n };\n\n /**\n * Create menu from chapter track\n *\n * @return {Menu}\n * New menu for the chapter buttons\n */\n\n\n ChaptersButton.prototype.createMenu = function createMenu() {\n this.options_.title = this.getMenuCaption();\n return _TextTrackButton.prototype.createMenu.call(this);\n };\n\n /**\n * Create a menu item for each text track\n *\n * @return {TextTrackMenuItem[]}\n * Array of menu items\n */\n\n\n ChaptersButton.prototype.createItems = function createItems() {\n var items = [];\n\n if (!this.track_) {\n return items;\n }\n\n var cues = this.track_.cues;\n\n if (!cues) {\n return items;\n }\n\n for (var i = 0, l = cues.length; i < l; i++) {\n var cue = cues[i];\n var mi = new ChaptersTrackMenuItem(this.player_, { track: this.track_, cue: cue });\n\n items.push(mi);\n }\n\n return items;\n };\n\n return ChaptersButton;\n}(TextTrackButton);\n\n/**\n * `kind` of TextTrack to look for to associate it with this menu.\n *\n * @type {string}\n * @private\n */\n\n\nChaptersButton.prototype.kind_ = 'chapters';\n\n/**\n * The text that should display over the `ChaptersButton`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\nChaptersButton.prototype.controlText_ = 'Chapters';\n\nComponent.registerComponent('ChaptersButton', ChaptersButton);\n\n/**\n * @file descriptions-button.js\n */\n/**\n * The button component for toggling and selecting descriptions\n *\n * @extends TextTrackButton\n */\n\nvar DescriptionsButton = function (_TextTrackButton) {\n inherits(DescriptionsButton, _TextTrackButton);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n *\n * @param {Component~ReadyCallback} [ready]\n * The function to call when this component is ready.\n */\n function DescriptionsButton(player, options, ready) {\n classCallCheck(this, DescriptionsButton);\n\n var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));\n\n var tracks = player.textTracks();\n var changeHandler = bind(_this, _this.handleTracksChange);\n\n tracks.addEventListener('change', changeHandler);\n _this.on('dispose', function () {\n tracks.removeEventListener('change', changeHandler);\n });\n return _this;\n }\n\n /**\n * Handle text track change\n *\n * @param {EventTarget~Event} event\n * The event that caused this function to run\n *\n * @listens TextTrackList#change\n */\n\n\n DescriptionsButton.prototype.handleTracksChange = function handleTracksChange(event) {\n var tracks = this.player().textTracks();\n var disabled = false;\n\n // Check whether a track of a different kind is showing\n for (var i = 0, l = tracks.length; i < l; i++) {\n var track = tracks[i];\n\n if (track.kind !== this.kind_ && track.mode === 'showing') {\n disabled = true;\n break;\n }\n }\n\n // If another track is showing, disable this menu button\n if (disabled) {\n this.disable();\n } else {\n this.enable();\n }\n };\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n DescriptionsButton.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);\n };\n\n DescriptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {\n return 'vjs-descriptions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n };\n\n return DescriptionsButton;\n}(TextTrackButton);\n\n/**\n * `kind` of TextTrack to look for to associate it with this menu.\n *\n * @type {string}\n * @private\n */\n\n\nDescriptionsButton.prototype.kind_ = 'descriptions';\n\n/**\n * The text that should display over the `DescriptionsButton`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\nDescriptionsButton.prototype.controlText_ = 'Descriptions';\n\nComponent.registerComponent('DescriptionsButton', DescriptionsButton);\n\n/**\n * @file subtitles-button.js\n */\n/**\n * The button component for toggling and selecting subtitles\n *\n * @extends TextTrackButton\n */\n\nvar SubtitlesButton = function (_TextTrackButton) {\n inherits(SubtitlesButton, _TextTrackButton);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n *\n * @param {Component~ReadyCallback} [ready]\n * The function to call when this component is ready.\n */\n function SubtitlesButton(player, options, ready) {\n classCallCheck(this, SubtitlesButton);\n return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n SubtitlesButton.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);\n };\n\n SubtitlesButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {\n return 'vjs-subtitles-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n };\n\n return SubtitlesButton;\n}(TextTrackButton);\n\n/**\n * `kind` of TextTrack to look for to associate it with this menu.\n *\n * @type {string}\n * @private\n */\n\n\nSubtitlesButton.prototype.kind_ = 'subtitles';\n\n/**\n * The text that should display over the `SubtitlesButton`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\nSubtitlesButton.prototype.controlText_ = 'Subtitles';\n\nComponent.registerComponent('SubtitlesButton', SubtitlesButton);\n\n/**\n * @file caption-settings-menu-item.js\n */\n/**\n * The menu item for caption track settings menu\n *\n * @extends TextTrackMenuItem\n */\n\nvar CaptionSettingsMenuItem = function (_TextTrackMenuItem) {\n inherits(CaptionSettingsMenuItem, _TextTrackMenuItem);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function CaptionSettingsMenuItem(player, options) {\n classCallCheck(this, CaptionSettingsMenuItem);\n\n options.track = {\n player: player,\n kind: options.kind,\n label: options.kind + ' settings',\n selectable: false,\n 'default': false,\n mode: 'disabled'\n };\n\n // CaptionSettingsMenuItem has no concept of 'selected'\n options.selectable = false;\n\n options.name = 'CaptionSettingsMenuItem';\n\n var _this = possibleConstructorReturn(this, _TextTrackMenuItem.call(this, player, options));\n\n _this.addClass('vjs-texttrack-settings');\n _this.controlText(', opens ' + options.kind + ' settings dialog');\n return _this;\n }\n\n /**\n * This gets called when an `CaptionSettingsMenuItem` is \"clicked\". See\n * {@link ClickableComponent} for more detailed information on what a click can be.\n *\n * @param {EventTarget~Event} [event]\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n */\n\n\n CaptionSettingsMenuItem.prototype.handleClick = function handleClick(event) {\n this.player().getChild('textTrackSettings').open();\n };\n\n return CaptionSettingsMenuItem;\n}(TextTrackMenuItem);\n\nComponent.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);\n\n/**\n * @file captions-button.js\n */\n/**\n * The button component for toggling and selecting captions\n *\n * @extends TextTrackButton\n */\n\nvar CaptionsButton = function (_TextTrackButton) {\n inherits(CaptionsButton, _TextTrackButton);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n *\n * @param {Component~ReadyCallback} [ready]\n * The function to call when this component is ready.\n */\n function CaptionsButton(player, options, ready) {\n classCallCheck(this, CaptionsButton);\n return possibleConstructorReturn(this, _TextTrackButton.call(this, player, options, ready));\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n CaptionsButton.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-captions-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);\n };\n\n CaptionsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {\n return 'vjs-captions-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n };\n\n /**\n * Create caption menu items\n *\n * @return {CaptionSettingsMenuItem[]}\n * The array of current menu items.\n */\n\n\n CaptionsButton.prototype.createItems = function createItems() {\n var items = [];\n\n if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {\n items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.kind_ }));\n\n this.hideThreshold_ += 1;\n }\n\n return _TextTrackButton.prototype.createItems.call(this, items);\n };\n\n return CaptionsButton;\n}(TextTrackButton);\n\n/**\n * `kind` of TextTrack to look for to associate it with this menu.\n *\n * @type {string}\n * @private\n */\n\n\nCaptionsButton.prototype.kind_ = 'captions';\n\n/**\n * The text that should display over the `CaptionsButton`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\nCaptionsButton.prototype.controlText_ = 'Captions';\n\nComponent.registerComponent('CaptionsButton', CaptionsButton);\n\n/**\n * @file subs-caps-menu-item.js\n */\n/**\n * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles\n * in the SubsCapsMenu.\n *\n * @extends TextTrackMenuItem\n */\n\nvar SubsCapsMenuItem = function (_TextTrackMenuItem) {\n inherits(SubsCapsMenuItem, _TextTrackMenuItem);\n\n function SubsCapsMenuItem() {\n classCallCheck(this, SubsCapsMenuItem);\n return possibleConstructorReturn(this, _TextTrackMenuItem.apply(this, arguments));\n }\n\n SubsCapsMenuItem.prototype.createEl = function createEl(type, props, attrs) {\n var innerHTML = '<span class=\"vjs-menu-item-text\">' + this.localize(this.options_.label);\n\n if (this.options_.track.kind === 'captions') {\n innerHTML += '\\n <span aria-hidden=\"true\" class=\"vjs-icon-placeholder\"></span>\\n <span class=\"vjs-control-text\"> ' + this.localize('Captions') + '</span>\\n ';\n }\n\n innerHTML += '</span>';\n\n var el = _TextTrackMenuItem.prototype.createEl.call(this, type, assign({\n innerHTML: innerHTML\n }, props), attrs);\n\n return el;\n };\n\n return SubsCapsMenuItem;\n}(TextTrackMenuItem);\n\nComponent.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);\n\n/**\n * @file sub-caps-button.js\n */\n/**\n * The button component for toggling and selecting captions and/or subtitles\n *\n * @extends TextTrackButton\n */\n\nvar SubsCapsButton = function (_TextTrackButton) {\n inherits(SubsCapsButton, _TextTrackButton);\n\n function SubsCapsButton(player) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n classCallCheck(this, SubsCapsButton);\n\n // Although North America uses \"captions\" in most cases for\n // \"captions and subtitles\" other locales use \"subtitles\"\n var _this = possibleConstructorReturn(this, _TextTrackButton.call(this, player, options));\n\n _this.label_ = 'subtitles';\n if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(_this.player_.language_) > -1) {\n _this.label_ = 'captions';\n }\n _this.menuButton_.controlText(toTitleCase(_this.label_));\n return _this;\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n SubsCapsButton.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildCSSClass.call(this);\n };\n\n SubsCapsButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {\n return 'vjs-subs-caps-button ' + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n };\n\n /**\n * Create caption/subtitles menu items\n *\n * @return {CaptionSettingsMenuItem[]}\n * The array of current menu items.\n */\n\n\n SubsCapsButton.prototype.createItems = function createItems() {\n var items = [];\n\n if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {\n items.push(new CaptionSettingsMenuItem(this.player_, { kind: this.label_ }));\n\n this.hideThreshold_ += 1;\n }\n\n items = _TextTrackButton.prototype.createItems.call(this, items, SubsCapsMenuItem);\n return items;\n };\n\n return SubsCapsButton;\n}(TextTrackButton);\n\n/**\n * `kind`s of TextTrack to look for to associate it with this menu.\n *\n * @type {array}\n * @private\n */\n\n\nSubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];\n\n/**\n * The text that should display over the `SubsCapsButton`s controls.\n *\n *\n * @type {string}\n * @private\n */\nSubsCapsButton.prototype.controlText_ = 'Subtitles';\n\nComponent.registerComponent('SubsCapsButton', SubsCapsButton);\n\n/**\n * @file audio-track-menu-item.js\n */\n/**\n * An {@link AudioTrack} {@link MenuItem}\n *\n * @extends MenuItem\n */\n\nvar AudioTrackMenuItem = function (_MenuItem) {\n inherits(AudioTrackMenuItem, _MenuItem);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function AudioTrackMenuItem(player, options) {\n classCallCheck(this, AudioTrackMenuItem);\n\n var track = options.track;\n var tracks = player.audioTracks();\n\n // Modify options for parent MenuItem class's init.\n options.label = track.label || track.language || 'Unknown';\n options.selected = track.enabled;\n\n var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));\n\n _this.track = track;\n\n _this.addClass('vjs-' + track.kind + '-menu-item');\n\n var changeHandler = function changeHandler() {\n for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n _this.handleTracksChange.apply(_this, args);\n };\n\n tracks.addEventListener('change', changeHandler);\n _this.on('dispose', function () {\n tracks.removeEventListener('change', changeHandler);\n });\n return _this;\n }\n\n AudioTrackMenuItem.prototype.createEl = function createEl(type, props, attrs) {\n var innerHTML = '<span class=\"vjs-menu-item-text\">' + this.localize(this.options_.label);\n\n if (this.options_.track.kind === 'main-desc') {\n innerHTML += '\\n <span aria-hidden=\"true\" class=\"vjs-icon-placeholder\"></span>\\n <span class=\"vjs-control-text\"> ' + this.localize('Descriptions') + '</span>\\n ';\n }\n\n innerHTML += '</span>';\n\n var el = _MenuItem.prototype.createEl.call(this, type, assign({\n innerHTML: innerHTML\n }, props), attrs);\n\n return el;\n };\n\n /**\n * This gets called when an `AudioTrackMenuItem is \"clicked\". See {@link ClickableComponent}\n * for more detailed information on what a click can be.\n *\n * @param {EventTarget~Event} [event]\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n */\n\n\n AudioTrackMenuItem.prototype.handleClick = function handleClick(event) {\n var tracks = this.player_.audioTracks();\n\n _MenuItem.prototype.handleClick.call(this, event);\n\n for (var i = 0; i < tracks.length; i++) {\n var track = tracks[i];\n\n track.enabled = track === this.track;\n }\n };\n\n /**\n * Handle any {@link AudioTrack} change.\n *\n * @param {EventTarget~Event} [event]\n * The {@link AudioTrackList#change} event that caused this to run.\n *\n * @listens AudioTrackList#change\n */\n\n\n AudioTrackMenuItem.prototype.handleTracksChange = function handleTracksChange(event) {\n this.selected(this.track.enabled);\n };\n\n return AudioTrackMenuItem;\n}(MenuItem);\n\nComponent.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);\n\n/**\n * @file audio-track-button.js\n */\n/**\n * The base class for buttons that toggle specific {@link AudioTrack} types.\n *\n * @extends TrackButton\n */\n\nvar AudioTrackButton = function (_TrackButton) {\n inherits(AudioTrackButton, _TrackButton);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options={}]\n * The key/value store of player options.\n */\n function AudioTrackButton(player) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n classCallCheck(this, AudioTrackButton);\n\n options.tracks = player.audioTracks();\n\n return possibleConstructorReturn(this, _TrackButton.call(this, player, options));\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n AudioTrackButton.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-audio-button ' + _TrackButton.prototype.buildCSSClass.call(this);\n };\n\n AudioTrackButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {\n return 'vjs-audio-button ' + _TrackButton.prototype.buildWrapperCSSClass.call(this);\n };\n\n /**\n * Create a menu item for each audio track\n *\n * @param {AudioTrackMenuItem[]} [items=[]]\n * An array of existing menu items to use.\n *\n * @return {AudioTrackMenuItem[]}\n * An array of menu items\n */\n\n\n AudioTrackButton.prototype.createItems = function createItems() {\n var items = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];\n\n // if there's only one audio track, there no point in showing it\n this.hideThreshold_ = 1;\n\n var tracks = this.player_.audioTracks();\n\n for (var i = 0; i < tracks.length; i++) {\n var track = tracks[i];\n\n items.push(new AudioTrackMenuItem(this.player_, {\n track: track,\n // MenuItem is selectable\n selectable: true,\n // MenuItem is NOT multiSelectable (i.e. only one can be marked \"selected\" at a time)\n multiSelectable: false\n }));\n }\n\n return items;\n };\n\n return AudioTrackButton;\n}(TrackButton);\n\n/**\n * The text that should display over the `AudioTrackButton`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\n\nAudioTrackButton.prototype.controlText_ = 'Audio Track';\nComponent.registerComponent('AudioTrackButton', AudioTrackButton);\n\n/**\n * @file playback-rate-menu-item.js\n */\n/**\n * The specific menu item type for selecting a playback rate.\n *\n * @extends MenuItem\n */\n\nvar PlaybackRateMenuItem = function (_MenuItem) {\n inherits(PlaybackRateMenuItem, _MenuItem);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function PlaybackRateMenuItem(player, options) {\n classCallCheck(this, PlaybackRateMenuItem);\n\n var label = options.rate;\n var rate = parseFloat(label, 10);\n\n // Modify options for parent MenuItem class's init.\n options.label = label;\n options.selected = rate === 1;\n options.selectable = true;\n options.multiSelectable = false;\n\n var _this = possibleConstructorReturn(this, _MenuItem.call(this, player, options));\n\n _this.label = label;\n _this.rate = rate;\n\n _this.on(player, 'ratechange', _this.update);\n return _this;\n }\n\n /**\n * This gets called when an `PlaybackRateMenuItem` is \"clicked\". See\n * {@link ClickableComponent} for more detailed information on what a click can be.\n *\n * @param {EventTarget~Event} [event]\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n */\n\n\n PlaybackRateMenuItem.prototype.handleClick = function handleClick(event) {\n _MenuItem.prototype.handleClick.call(this);\n this.player().playbackRate(this.rate);\n };\n\n /**\n * Update the PlaybackRateMenuItem when the playbackrate changes.\n *\n * @param {EventTarget~Event} [event]\n * The `ratechange` event that caused this function to run.\n *\n * @listens Player#ratechange\n */\n\n\n PlaybackRateMenuItem.prototype.update = function update(event) {\n this.selected(this.player().playbackRate() === this.rate);\n };\n\n return PlaybackRateMenuItem;\n}(MenuItem);\n\n/**\n * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\n\nPlaybackRateMenuItem.prototype.contentElType = 'button';\n\nComponent.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);\n\n/**\n * @file playback-rate-menu-button.js\n */\n/**\n * The component for controlling the playback rate.\n *\n * @extends MenuButton\n */\n\nvar PlaybackRateMenuButton = function (_MenuButton) {\n inherits(PlaybackRateMenuButton, _MenuButton);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function PlaybackRateMenuButton(player, options) {\n classCallCheck(this, PlaybackRateMenuButton);\n\n var _this = possibleConstructorReturn(this, _MenuButton.call(this, player, options));\n\n _this.updateVisibility();\n _this.updateLabel();\n\n _this.on(player, 'loadstart', _this.updateVisibility);\n _this.on(player, 'ratechange', _this.updateLabel);\n return _this;\n }\n\n /**\n * Create the `Component`'s DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n\n\n PlaybackRateMenuButton.prototype.createEl = function createEl$$1() {\n var el = _MenuButton.prototype.createEl.call(this);\n\n this.labelEl_ = createEl('div', {\n className: 'vjs-playback-rate-value',\n innerHTML: '1x'\n });\n\n el.appendChild(this.labelEl_);\n\n return el;\n };\n\n PlaybackRateMenuButton.prototype.dispose = function dispose() {\n this.labelEl_ = null;\n\n _MenuButton.prototype.dispose.call(this);\n };\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n\n\n PlaybackRateMenuButton.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-playback-rate ' + _MenuButton.prototype.buildCSSClass.call(this);\n };\n\n PlaybackRateMenuButton.prototype.buildWrapperCSSClass = function buildWrapperCSSClass() {\n return 'vjs-playback-rate ' + _MenuButton.prototype.buildWrapperCSSClass.call(this);\n };\n\n /**\n * Create the playback rate menu\n *\n * @return {Menu}\n * Menu object populated with {@link PlaybackRateMenuItem}s\n */\n\n\n PlaybackRateMenuButton.prototype.createMenu = function createMenu() {\n var menu = new Menu(this.player());\n var rates = this.playbackRates();\n\n if (rates) {\n for (var i = rates.length - 1; i >= 0; i--) {\n menu.addChild(new PlaybackRateMenuItem(this.player(), { rate: rates[i] + 'x' }));\n }\n }\n\n return menu;\n };\n\n /**\n * Updates ARIA accessibility attributes\n */\n\n\n PlaybackRateMenuButton.prototype.updateARIAAttributes = function updateARIAAttributes() {\n // Current playback rate\n this.el().setAttribute('aria-valuenow', this.player().playbackRate());\n };\n\n /**\n * This gets called when an `PlaybackRateMenuButton` is \"clicked\". See\n * {@link ClickableComponent} for more detailed information on what a click can be.\n *\n * @param {EventTarget~Event} [event]\n * The `keydown`, `tap`, or `click` event that caused this function to be\n * called.\n *\n * @listens tap\n * @listens click\n */\n\n\n PlaybackRateMenuButton.prototype.handleClick = function handleClick(event) {\n // select next rate option\n var currentRate = this.player().playbackRate();\n var rates = this.playbackRates();\n\n // this will select first one if the last one currently selected\n var newRate = rates[0];\n\n for (var i = 0; i < rates.length; i++) {\n if (rates[i] > currentRate) {\n newRate = rates[i];\n break;\n }\n }\n this.player().playbackRate(newRate);\n };\n\n /**\n * Get possible playback rates\n *\n * @return {Array}\n * All possible playback rates\n */\n\n\n PlaybackRateMenuButton.prototype.playbackRates = function playbackRates() {\n return this.options_.playbackRates || this.options_.playerOptions && this.options_.playerOptions.playbackRates;\n };\n\n /**\n * Get whether playback rates is supported by the tech\n * and an array of playback rates exists\n *\n * @return {boolean}\n * Whether changing playback rate is supported\n */\n\n\n PlaybackRateMenuButton.prototype.playbackRateSupported = function playbackRateSupported() {\n return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;\n };\n\n /**\n * Hide playback rate controls when they're no playback rate options to select\n *\n * @param {EventTarget~Event} [event]\n * The event that caused this function to run.\n *\n * @listens Player#loadstart\n */\n\n\n PlaybackRateMenuButton.prototype.updateVisibility = function updateVisibility(event) {\n if (this.playbackRateSupported()) {\n this.removeClass('vjs-hidden');\n } else {\n this.addClass('vjs-hidden');\n }\n };\n\n /**\n * Update button label when rate changed\n *\n * @param {EventTarget~Event} [event]\n * The event that caused this function to run.\n *\n * @listens Player#ratechange\n */\n\n\n PlaybackRateMenuButton.prototype.updateLabel = function updateLabel(event) {\n if (this.playbackRateSupported()) {\n this.labelEl_.innerHTML = this.player().playbackRate() + 'x';\n }\n };\n\n return PlaybackRateMenuButton;\n}(MenuButton);\n\n/**\n * The text that should display over the `FullscreenToggle`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\n\nPlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';\n\nComponent.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);\n\n/**\n * @file spacer.js\n */\n/**\n * Just an empty spacer element that can be used as an append point for plugins, etc.\n * Also can be used to create space between elements when necessary.\n *\n * @extends Component\n */\n\nvar Spacer = function (_Component) {\n inherits(Spacer, _Component);\n\n function Spacer() {\n classCallCheck(this, Spacer);\n return possibleConstructorReturn(this, _Component.apply(this, arguments));\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n Spacer.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-spacer ' + _Component.prototype.buildCSSClass.call(this);\n };\n\n /**\n * Create the `Component`'s DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n\n\n Spacer.prototype.createEl = function createEl() {\n return _Component.prototype.createEl.call(this, 'div', {\n className: this.buildCSSClass()\n });\n };\n\n return Spacer;\n}(Component);\n\nComponent.registerComponent('Spacer', Spacer);\n\n/**\n * @file custom-control-spacer.js\n */\n/**\n * Spacer specifically meant to be used as an insertion point for new plugins, etc.\n *\n * @extends Spacer\n */\n\nvar CustomControlSpacer = function (_Spacer) {\n inherits(CustomControlSpacer, _Spacer);\n\n function CustomControlSpacer() {\n classCallCheck(this, CustomControlSpacer);\n return possibleConstructorReturn(this, _Spacer.apply(this, arguments));\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n */\n CustomControlSpacer.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-custom-control-spacer ' + _Spacer.prototype.buildCSSClass.call(this);\n };\n\n /**\n * Create the `Component`'s DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n\n\n CustomControlSpacer.prototype.createEl = function createEl() {\n var el = _Spacer.prototype.createEl.call(this, {\n className: this.buildCSSClass()\n });\n\n // No-flex/table-cell mode requires there be some content\n // in the cell to fill the remaining space of the table.\n el.innerHTML = '\\xA0';\n return el;\n };\n\n return CustomControlSpacer;\n}(Spacer);\n\nComponent.registerComponent('CustomControlSpacer', CustomControlSpacer);\n\n/**\n * @file control-bar.js\n */\n// Required children\n/**\n * Container of main controls.\n *\n * @extends Component\n */\n\nvar ControlBar = function (_Component) {\n inherits(ControlBar, _Component);\n\n function ControlBar() {\n classCallCheck(this, ControlBar);\n return possibleConstructorReturn(this, _Component.apply(this, arguments));\n }\n\n /**\n * Create the `Component`'s DOM element\n *\n * @return {Element}\n * The element that was created.\n */\n ControlBar.prototype.createEl = function createEl() {\n return _Component.prototype.createEl.call(this, 'div', {\n className: 'vjs-control-bar',\n dir: 'ltr'\n });\n };\n\n return ControlBar;\n}(Component);\n\n/**\n * Default options for `ControlBar`\n *\n * @type {Object}\n * @private\n */\n\n\nControlBar.prototype.options_ = {\n children: ['playToggle', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'fullscreenToggle']\n};\n\nComponent.registerComponent('ControlBar', ControlBar);\n\n/**\n * @file error-display.js\n */\n/**\n * A display that indicates an error has occurred. This means that the video\n * is unplayable.\n *\n * @extends ModalDialog\n */\n\nvar ErrorDisplay = function (_ModalDialog) {\n inherits(ErrorDisplay, _ModalDialog);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function ErrorDisplay(player, options) {\n classCallCheck(this, ErrorDisplay);\n\n var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));\n\n _this.on(player, 'error', _this.open);\n return _this;\n }\n\n /**\n * Builds the default DOM `className`.\n *\n * @return {string}\n * The DOM `className` for this object.\n *\n * @deprecated Since version 5.\n */\n\n\n ErrorDisplay.prototype.buildCSSClass = function buildCSSClass() {\n return 'vjs-error-display ' + _ModalDialog.prototype.buildCSSClass.call(this);\n };\n\n /**\n * Gets the localized error message based on the `Player`s error.\n *\n * @return {string}\n * The `Player`s error message localized or an empty string.\n */\n\n\n ErrorDisplay.prototype.content = function content() {\n var error = this.player().error();\n\n return error ? this.localize(error.message) : '';\n };\n\n return ErrorDisplay;\n}(ModalDialog);\n\n/**\n * The default options for an `ErrorDisplay`.\n *\n * @private\n */\n\n\nErrorDisplay.prototype.options_ = mergeOptions(ModalDialog.prototype.options_, {\n pauseOnOpen: false,\n fillAlways: true,\n temporary: false,\n uncloseable: true\n});\n\nComponent.registerComponent('ErrorDisplay', ErrorDisplay);\n\n/**\n * @file text-track-settings.js\n */\nvar LOCAL_STORAGE_KEY = 'vjs-text-track-settings';\n\nvar COLOR_BLACK = ['#000', 'Black'];\nvar COLOR_BLUE = ['#00F', 'Blue'];\nvar COLOR_CYAN = ['#0FF', 'Cyan'];\nvar COLOR_GREEN = ['#0F0', 'Green'];\nvar COLOR_MAGENTA = ['#F0F', 'Magenta'];\nvar COLOR_RED = ['#F00', 'Red'];\nvar COLOR_WHITE = ['#FFF', 'White'];\nvar COLOR_YELLOW = ['#FF0', 'Yellow'];\n\nvar OPACITY_OPAQUE = ['1', 'Opaque'];\nvar OPACITY_SEMI = ['0.5', 'Semi-Transparent'];\nvar OPACITY_TRANS = ['0', 'Transparent'];\n\n// Configuration for the various <select> elements in the DOM of this component.\n//\n// Possible keys include:\n//\n// `default`:\n// The default option index. Only needs to be provided if not zero.\n// `parser`:\n// A function which is used to parse the value from the selected option in\n// a customized way.\n// `selector`:\n// The selector used to find the associated <select> element.\nvar selectConfigs = {\n backgroundColor: {\n selector: '.vjs-bg-color > select',\n id: 'captions-background-color-%s',\n label: 'Color',\n options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]\n },\n\n backgroundOpacity: {\n selector: '.vjs-bg-opacity > select',\n id: 'captions-background-opacity-%s',\n label: 'Transparency',\n options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]\n },\n\n color: {\n selector: '.vjs-fg-color > select',\n id: 'captions-foreground-color-%s',\n label: 'Color',\n options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]\n },\n\n edgeStyle: {\n selector: '.vjs-edge-style > select',\n id: '%s',\n label: 'Text Edge Style',\n options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Dropshadow']]\n },\n\n fontFamily: {\n selector: '.vjs-font-family > select',\n id: 'captions-font-family-%s',\n label: 'Font Family',\n options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]\n },\n\n fontPercent: {\n selector: '.vjs-font-percent > select',\n id: 'captions-font-size-%s',\n label: 'Font Size',\n options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],\n 'default': 2,\n parser: function parser(v) {\n return v === '1.00' ? null : Number(v);\n }\n },\n\n textOpacity: {\n selector: '.vjs-text-opacity > select',\n id: 'captions-foreground-opacity-%s',\n label: 'Transparency',\n options: [OPACITY_OPAQUE, OPACITY_SEMI]\n },\n\n // Options for this object are defined below.\n windowColor: {\n selector: '.vjs-window-color > select',\n id: 'captions-window-color-%s',\n label: 'Color'\n },\n\n // Options for this object are defined below.\n windowOpacity: {\n selector: '.vjs-window-opacity > select',\n id: 'captions-window-opacity-%s',\n label: 'Transparency',\n options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]\n }\n};\n\nselectConfigs.windowColor.options = selectConfigs.backgroundColor.options;\n\n/**\n * Get the actual value of an option.\n *\n * @param {string} value\n * The value to get\n *\n * @param {Function} [parser]\n * Optional function to adjust the value.\n *\n * @return {Mixed}\n * - Will be `undefined` if no value exists\n * - Will be `undefined` if the given value is \"none\".\n * - Will be the actual value otherwise.\n *\n * @private\n */\nfunction parseOptionValue(value, parser) {\n if (parser) {\n value = parser(value);\n }\n\n if (value && value !== 'none') {\n return value;\n }\n}\n\n/**\n * Gets the value of the selected <option> element within a <select> element.\n *\n * @param {Element} el\n * the element to look in\n *\n * @param {Function} [parser]\n * Optional function to adjust the value.\n *\n * @return {Mixed}\n * - Will be `undefined` if no value exists\n * - Will be `undefined` if the given value is \"none\".\n * - Will be the actual value otherwise.\n *\n * @private\n */\nfunction getSelectedOptionValue(el, parser) {\n var value = el.options[el.options.selectedIndex].value;\n\n return parseOptionValue(value, parser);\n}\n\n/**\n * Sets the selected <option> element within a <select> element based on a\n * given value.\n *\n * @param {Element} el\n * The element to look in.\n *\n * @param {string} value\n * the property to look on.\n *\n * @param {Function} [parser]\n * Optional function to adjust the value before comparing.\n *\n * @private\n */\nfunction setSelectedOption(el, value, parser) {\n if (!value) {\n return;\n }\n\n for (var i = 0; i < el.options.length; i++) {\n if (parseOptionValue(el.options[i].value, parser) === value) {\n el.selectedIndex = i;\n break;\n }\n }\n}\n\n/**\n * Manipulate Text Tracks settings.\n *\n * @extends ModalDialog\n */\n\nvar TextTrackSettings = function (_ModalDialog) {\n inherits(TextTrackSettings, _ModalDialog);\n\n /**\n * Creates an instance of this class.\n *\n * @param {Player} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n */\n function TextTrackSettings(player, options) {\n classCallCheck(this, TextTrackSettings);\n\n options.temporary = false;\n\n var _this = possibleConstructorReturn(this, _ModalDialog.call(this, player, options));\n\n _this.updateDisplay = bind(_this, _this.updateDisplay);\n\n // fill the modal and pretend we have opened it\n _this.fill();\n _this.hasBeenOpened_ = _this.hasBeenFilled_ = true;\n\n _this.endDialog = createEl('p', {\n className: 'vjs-control-text',\n textContent: _this.localize('End of dialog window.')\n });\n _this.el().appendChild(_this.endDialog);\n\n _this.setDefaults();\n\n // Grab `persistTextTrackSettings` from the player options if not passed in child options\n if (options.persistTextTrackSettings === undefined) {\n _this.options_.persistTextTrackSettings = _this.options_.playerOptions.persistTextTrackSettings;\n }\n\n _this.on(_this.$('.vjs-done-button'), 'click', function () {\n _this.saveSettings();\n _this.close();\n });\n\n _this.on(_this.$('.vjs-default-button'), 'click', function () {\n _this.setDefaults();\n _this.updateDisplay();\n });\n\n each(selectConfigs, function (config) {\n _this.on(_this.$(config.selector), 'change', _this.updateDisplay);\n });\n\n if (_this.options_.persistTextTrackSettings) {\n _this.restoreSettings();\n }\n return _this;\n }\n\n TextTrackSettings.prototype.dispose = function dispose() {\n this.endDialog = null;\n\n _ModalDialog.prototype.dispose.call(this);\n };\n\n /**\n * Create a <select> element with configured options.\n *\n * @param {string} key\n * Configuration key to use during creation.\n *\n * @return {string}\n * An HTML string.\n *\n * @private\n */\n\n\n TextTrackSettings.prototype.createElSelect_ = function createElSelect_(key) {\n var _this2 = this;\n\n var legendId = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';\n var type = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'label';\n\n var config = selectConfigs[key];\n var id = config.id.replace('%s', this.id_);\n var selectLabelledbyIds = [legendId, id].join(' ').trim();\n\n return ['<' + type + ' id=\"' + id + '\" class=\"' + (type === 'label' ? 'vjs-label' : '') + '\">', this.localize(config.label), '</' + type + '>', '<select aria-labelledby=\"' + selectLabelledbyIds + '\">'].concat(config.options.map(function (o) {\n var optionId = id + '-' + o[1].replace(/\\W+/g, '');\n\n return ['<option id=\"' + optionId + '\" value=\"' + o[0] + '\" ', 'aria-labelledby=\"' + selectLabelledbyIds + ' ' + optionId + '\">', _this2.localize(o[1]), '</option>'].join('');\n })).concat('</select>').join('');\n };\n\n /**\n * Create foreground color element for the component\n *\n * @return {string}\n * An HTML string.\n *\n * @private\n */\n\n\n TextTrackSettings.prototype.createElFgColor_ = function createElFgColor_() {\n var legendId = 'captions-text-legend-' + this.id_;\n\n return ['<fieldset class=\"vjs-fg-color vjs-track-setting\">', '<legend id=\"' + legendId + '\">', this.localize('Text'), '</legend>', this.createElSelect_('color', legendId), '<span class=\"vjs-text-opacity vjs-opacity\">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');\n };\n\n /**\n * Create background color element for the component\n *\n * @return {string}\n * An HTML string.\n *\n * @private\n */\n\n\n TextTrackSettings.prototype.createElBgColor_ = function createElBgColor_() {\n var legendId = 'captions-background-' + this.id_;\n\n return ['<fieldset class=\"vjs-bg-color vjs-track-setting\">', '<legend id=\"' + legendId + '\">', this.localize('Background'), '</legend>', this.createElSelect_('backgroundColor', legendId), '<span class=\"vjs-bg-opacity vjs-opacity\">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');\n };\n\n /**\n * Create window color element for the component\n *\n * @return {string}\n * An HTML string.\n *\n * @private\n */\n\n\n TextTrackSettings.prototype.createElWinColor_ = function createElWinColor_() {\n var legendId = 'captions-window-' + this.id_;\n\n return ['<fieldset class=\"vjs-window-color vjs-track-setting\">', '<legend id=\"' + legendId + '\">', this.localize('Window'), '</legend>', this.createElSelect_('windowColor', legendId), '<span class=\"vjs-window-opacity vjs-opacity\">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');\n };\n\n /**\n * Create color elements for the component\n *\n * @return {Element}\n * The element that was created\n *\n * @private\n */\n\n\n TextTrackSettings.prototype.createElColors_ = function createElColors_() {\n return createEl('div', {\n className: 'vjs-track-settings-colors',\n innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')\n });\n };\n\n /**\n * Create font elements for the component\n *\n * @return {Element}\n * The element that was created.\n *\n * @private\n */\n\n\n TextTrackSettings.prototype.createElFont_ = function createElFont_() {\n return createEl('div', {\n className: 'vjs-track-settings-font',\n innerHTML: ['<fieldset class=\"vjs-font-percent vjs-track-setting\">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class=\"vjs-edge-style vjs-track-setting\">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class=\"vjs-font-family vjs-track-setting\">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')\n });\n };\n\n /**\n * Create controls for the component\n *\n * @return {Element}\n * The element that was created.\n *\n * @private\n */\n\n\n TextTrackSettings.prototype.createElControls_ = function createElControls_() {\n var defaultsDescription = this.localize('restore all settings to the default values');\n\n return createEl('div', {\n className: 'vjs-track-settings-controls',\n innerHTML: ['<button class=\"vjs-default-button\" title=\"' + defaultsDescription + '\">', this.localize('Reset'), '<span class=\"vjs-control-text\"> ' + defaultsDescription + '</span>', '</button>', '<button class=\"vjs-done-button\">' + this.localize('Done') + '</button>'].join('')\n });\n };\n\n TextTrackSettings.prototype.content = function content() {\n return [this.createElColors_(), this.createElFont_(), this.createElControls_()];\n };\n\n TextTrackSettings.prototype.label = function label() {\n return this.localize('Caption Settings Dialog');\n };\n\n TextTrackSettings.prototype.description = function description() {\n return this.localize('Beginning of dialog window. Escape will cancel and close the window.');\n };\n\n TextTrackSettings.prototype.buildCSSClass = function buildCSSClass() {\n return _ModalDialog.prototype.buildCSSClass.call(this) + ' vjs-text-track-settings';\n };\n\n /**\n * Gets an object of text track settings (or null).\n *\n * @return {Object}\n * An object with config values parsed from the DOM or localStorage.\n */\n\n\n TextTrackSettings.prototype.getValues = function getValues() {\n var _this3 = this;\n\n return reduce(selectConfigs, function (accum, config, key) {\n var value = getSelectedOptionValue(_this3.$(config.selector), config.parser);\n\n if (value !== undefined) {\n accum[key] = value;\n }\n\n return accum;\n }, {});\n };\n\n /**\n * Sets text track settings from an object of values.\n *\n * @param {Object} values\n * An object with config values parsed from the DOM or localStorage.\n */\n\n\n TextTrackSettings.prototype.setValues = function setValues(values) {\n var _this4 = this;\n\n each(selectConfigs, function (config, key) {\n setSelectedOption(_this4.$(config.selector), values[key], config.parser);\n });\n };\n\n /**\n * Sets all `<select>` elements to their default values.\n */\n\n\n TextTrackSettings.prototype.setDefaults = function setDefaults() {\n var _this5 = this;\n\n each(selectConfigs, function (config) {\n var index = config.hasOwnProperty('default') ? config['default'] : 0;\n\n _this5.$(config.selector).selectedIndex = index;\n });\n };\n\n /**\n * Restore texttrack settings from localStorage\n */\n\n\n TextTrackSettings.prototype.restoreSettings = function restoreSettings() {\n var values = void 0;\n\n try {\n values = JSON.parse(window.localStorage.getItem(LOCAL_STORAGE_KEY));\n } catch (err) {\n log$1.warn(err);\n }\n\n if (values) {\n this.setValues(values);\n }\n };\n\n /**\n * Save text track settings to localStorage\n */\n\n\n TextTrackSettings.prototype.saveSettings = function saveSettings() {\n if (!this.options_.persistTextTrackSettings) {\n return;\n }\n\n var values = this.getValues();\n\n try {\n if (Object.keys(values).length) {\n window.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(values));\n } else {\n window.localStorage.removeItem(LOCAL_STORAGE_KEY);\n }\n } catch (err) {\n log$1.warn(err);\n }\n };\n\n /**\n * Update display of text track settings\n */\n\n\n TextTrackSettings.prototype.updateDisplay = function updateDisplay() {\n var ttDisplay = this.player_.getChild('textTrackDisplay');\n\n if (ttDisplay) {\n ttDisplay.updateDisplay();\n }\n };\n\n /**\n * conditionally blur the element and refocus the captions button\n *\n * @private\n */\n\n\n TextTrackSettings.prototype.conditionalBlur_ = function conditionalBlur_() {\n this.previouslyActiveEl_ = null;\n this.off(document, 'keydown', this.handleKeyDown);\n\n var cb = this.player_.controlBar;\n var subsCapsBtn = cb && cb.subsCapsButton;\n var ccBtn = cb && cb.captionsButton;\n\n if (subsCapsBtn) {\n subsCapsBtn.focus();\n } else if (ccBtn) {\n ccBtn.focus();\n }\n };\n\n return TextTrackSettings;\n}(ModalDialog);\n\nComponent.registerComponent('TextTrackSettings', TextTrackSettings);\n\n/**\n * @file resize-manager.js\n */\n/**\n * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.\n *\n * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.\n *\n * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.\n * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.\n * @example <caption>How to disable the resize manager</caption>\n * const player = videojs('#vid', {\n * resizeManager: false\n * });\n *\n * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}\n *\n * @extends Component\n */\n\nvar ResizeManager = function (_Component) {\n inherits(ResizeManager, _Component);\n\n /**\n * Create the ResizeManager.\n *\n * @param {Object} player\n * The `Player` that this class should be attached to.\n *\n * @param {Object} [options]\n * The key/value store of ResizeManager options.\n *\n * @param {Object} [options.ResizeObserver]\n * A polyfill for ResizeObserver can be passed in here.\n * If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.\n */\n function ResizeManager(player, options) {\n classCallCheck(this, ResizeManager);\n\n var RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window.ResizeObserver;\n\n // if `null` was passed, we want to disable the ResizeObserver\n if (options.ResizeObserver === null) {\n RESIZE_OBSERVER_AVAILABLE = false;\n }\n\n // Only create an element when ResizeObserver isn't available\n var options_ = mergeOptions({ createEl: !RESIZE_OBSERVER_AVAILABLE }, options);\n\n var _this = possibleConstructorReturn(this, _Component.call(this, player, options_));\n\n _this.ResizeObserver = options.ResizeObserver || window.ResizeObserver;\n _this.loadListener_ = null;\n _this.resizeObserver_ = null;\n _this.debouncedHandler_ = debounce(function () {\n _this.resizeHandler();\n }, 100, false, player);\n\n if (RESIZE_OBSERVER_AVAILABLE) {\n _this.resizeObserver_ = new _this.ResizeObserver(_this.debouncedHandler_);\n _this.resizeObserver_.observe(player.el());\n } else {\n _this.loadListener_ = function () {\n if (_this.el_.contentWindow) {\n on(_this.el_.contentWindow, 'resize', _this.debouncedHandler_);\n }\n _this.off('load', _this.loadListener_);\n };\n\n _this.on('load', _this.loadListener_);\n }\n return _this;\n }\n\n ResizeManager.prototype.createEl = function createEl() {\n return _Component.prototype.createEl.call(this, 'iframe', {\n className: 'vjs-resize-manager'\n });\n };\n\n /**\n * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver\n *\n * @fires Player#playerresize\n */\n\n\n ResizeManager.prototype.resizeHandler = function resizeHandler() {\n /**\n * Called when the player size has changed\n *\n * @event Player#playerresize\n * @type {EventTarget~Event}\n */\n this.player_.trigger('playerresize');\n };\n\n ResizeManager.prototype.dispose = function dispose() {\n if (this.resizeObserver_) {\n if (this.player_.el()) {\n this.resizeObserver_.unobserve(this.player_.el());\n }\n this.resizeObserver_.disconnect();\n }\n\n if (this.el_ && this.el_.contentWindow) {\n off(this.el_.contentWindow, 'resize', this.debouncedHandler_);\n }\n\n if (this.loadListener_) {\n this.off('load', this.loadListener_);\n }\n\n this.ResizeObserver = null;\n this.resizeObserver = null;\n this.debouncedHandler_ = null;\n this.loadListener_ = null;\n };\n\n return ResizeManager;\n}(Component);\n\nComponent.registerComponent('ResizeManager', ResizeManager);\n\n/**\n * This function is used to fire a sourceset when there is something\n * similar to `mediaEl.load()` being called. It will try to find the source via\n * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`\n * with the source that was found or empty string if we cannot know. If it cannot\n * find a source then `sourceset` will not be fired.\n *\n * @param {Html5} tech\n * The tech object that sourceset was setup on\n *\n * @return {boolean}\n * returns false if the sourceset was not fired and true otherwise.\n */\nvar sourcesetLoad = function sourcesetLoad(tech) {\n var el = tech.el();\n\n // if `el.src` is set, that source will be loaded.\n if (el.hasAttribute('src')) {\n tech.triggerSourceset(el.src);\n return true;\n }\n\n /**\n * Since there isn't a src property on the media element, source elements will be used for\n * implementing the source selection algorithm. This happens asynchronously and\n * for most cases were there is more than one source we cannot tell what source will\n * be loaded, without re-implementing the source selection algorithm. At this time we are not\n * going to do that. There are three special cases that we do handle here though:\n *\n * 1. If there are no sources, do not fire `sourceset`.\n * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`\n * 3. If there is more than one `<source>` but all of them have the same `src` url.\n * That will be our src.\n */\n var sources = tech.$$('source');\n var srcUrls = [];\n var src = '';\n\n // if there are no sources, do not fire sourceset\n if (!sources.length) {\n return false;\n }\n\n // only count valid/non-duplicate source elements\n for (var i = 0; i < sources.length; i++) {\n var url = sources[i].src;\n\n if (url && srcUrls.indexOf(url) === -1) {\n srcUrls.push(url);\n }\n }\n\n // there were no valid sources\n if (!srcUrls.length) {\n return false;\n }\n\n // there is only one valid source element url\n // use that\n if (srcUrls.length === 1) {\n src = srcUrls[0];\n }\n\n tech.triggerSourceset(src);\n return true;\n};\n\n/**\n * our implementation of an `innerHTML` descriptor for browsers\n * that do not have one.\n */\nvar innerHTMLDescriptorPolyfill = {};\n\nif (!IS_IE8) {\n innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {\n get: function get() {\n return this.cloneNode(true).innerHTML;\n },\n set: function set(v) {\n // make a dummy node to use innerHTML on\n var dummy = document.createElement(this.nodeName.toLowerCase());\n\n // set innerHTML to the value provided\n dummy.innerHTML = v;\n\n // make a document fragment to hold the nodes from dummy\n var docFrag = document.createDocumentFragment();\n\n // copy all of the nodes created by the innerHTML on dummy\n // to the document fragment\n while (dummy.childNodes.length) {\n docFrag.appendChild(dummy.childNodes[0]);\n }\n\n // remove content\n this.innerText = '';\n\n // now we add all of that html in one by appending the\n // document fragment. This is how innerHTML does it.\n window.Element.prototype.appendChild.call(this, docFrag);\n\n // then return the result that innerHTML's setter would\n return this.innerHTML;\n }\n });\n}\n/**\n * Get a property descriptor given a list of priorities and the\n * property to get.\n */\nvar getDescriptor = function getDescriptor(priority, prop) {\n var descriptor = {};\n\n for (var i = 0; i < priority.length; i++) {\n descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);\n\n if (descriptor && descriptor.set && descriptor.get) {\n break;\n }\n }\n\n descriptor.enumerable = true;\n descriptor.configurable = true;\n\n return descriptor;\n};\n\nvar getInnerHTMLDescriptor = function getInnerHTMLDescriptor(tech) {\n return getDescriptor([tech.el(), window.HTMLMediaElement.prototype, window.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');\n};\n\n/**\n * Patches browser internal functions so that we can tell syncronously\n * if a `<source>` was appended to the media element. For some reason this\n * causes a `sourceset` if the the media element is ready and has no source.\n * This happens when:\n * - The page has just loaded and the media element does not have a source.\n * - The media element was emptied of all sources, then `load()` was called.\n *\n * It does this by patching the following functions/properties when they are supported:\n *\n * - `append()` - can be used to add a `<source>` element to the media element\n * - `appendChild()` - can be used to add a `<source>` element to the media element\n * - `insertAdjacentHTML()` - can be used to add a `<source>` element to the media element\n * - `innerHTML` - can be used to add a `<source>` element to the media element\n *\n * @param {Html5} tech\n * The tech object that sourceset is being setup on.\n */\nvar firstSourceWatch = function firstSourceWatch(tech) {\n var el = tech.el();\n\n // make sure firstSourceWatch isn't setup twice.\n if (el.resetSourceWatch_) {\n return;\n }\n\n var old = {};\n var innerDescriptor = getInnerHTMLDescriptor(tech);\n var appendWrapper = function appendWrapper(appendFn) {\n return function () {\n for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n var retval = appendFn.apply(el, args);\n\n sourcesetLoad(tech);\n\n return retval;\n };\n };\n\n ['append', 'appendChild', 'insertAdjacentHTML'].forEach(function (k) {\n if (!el[k]) {\n return;\n }\n\n // store the old function\n old[k] = el[k];\n\n // call the old function with a sourceset if a source\n // was loaded\n el[k] = appendWrapper(old[k]);\n });\n\n Object.defineProperty(el, 'innerHTML', mergeOptions(innerDescriptor, {\n set: appendWrapper(innerDescriptor.set)\n }));\n\n el.resetSourceWatch_ = function () {\n el.resetSourceWatch_ = null;\n Object.keys(old).forEach(function (k) {\n el[k] = old[k];\n });\n\n Object.defineProperty(el, 'innerHTML', innerDescriptor);\n };\n\n // on the first sourceset, we need to revert our changes\n tech.one('sourceset', el.resetSourceWatch_);\n};\n\n/**\n * our implementation of a `src` descriptor for browsers\n * that do not have one.\n */\n\nvar srcDescriptorPolyfill = {};\n\nif (!IS_IE8) {\n srcDescriptorPolyfill = Object.defineProperty({}, 'src', {\n get: function get() {\n if (this.hasAttribute('src')) {\n return getAbsoluteURL(window.Element.prototype.getAttribute.call(this, 'src'));\n }\n\n return '';\n },\n set: function set(v) {\n window.Element.prototype.setAttribute.call(this, 'src', v);\n\n return v;\n }\n });\n}\n\nvar getSrcDescriptor = function getSrcDescriptor(tech) {\n return getDescriptor([tech.el(), window.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');\n};\n\n/**\n * setup `sourceset` handling on the `Html5` tech. This function\n * patches the following element properties/functions:\n *\n * - `src` - to determine when `src` is set\n * - `setAttribute()` - to determine when `src` is set\n * - `load()` - this re-triggers the source selection algorithm, and can\n * cause a sourceset.\n *\n * If there is no source when we are adding `sourceset` support or during a `load()`\n * we also patch the functions listed in `firstSourceWatch`.\n *\n * @param {Html5} tech\n * The tech to patch\n */\nvar setupSourceset = function setupSourceset(tech) {\n if (!tech.featuresSourceset) {\n return;\n }\n\n var el = tech.el();\n\n // make sure sourceset isn't setup twice.\n if (el.resetSourceset_) {\n return;\n }\n\n var srcDescriptor = getSrcDescriptor(tech);\n var oldSetAttribute = el.setAttribute;\n var oldLoad = el.load;\n\n Object.defineProperty(el, 'src', mergeOptions(srcDescriptor, {\n set: function set(v) {\n var retval = srcDescriptor.set.call(el, v);\n\n // we use the getter here to get the actual value set on src\n tech.triggerSourceset(el.src);\n\n return retval;\n }\n }));\n\n el.setAttribute = function (n, v) {\n var retval = oldSetAttribute.call(el, n, v);\n\n if (/src/i.test(n)) {\n tech.triggerSourceset(el.src);\n }\n\n return retval;\n };\n\n el.load = function () {\n var retval = oldLoad.call(el);\n\n // if load was called, but there was no source to fire\n // sourceset on. We have to watch for a source append\n // as that can trigger a `sourceset` when the media element\n // has no source\n if (!sourcesetLoad(tech)) {\n tech.triggerSourceset('');\n firstSourceWatch(tech);\n }\n\n return retval;\n };\n\n if (el.currentSrc) {\n tech.triggerSourceset(el.currentSrc);\n } else if (!sourcesetLoad(tech)) {\n firstSourceWatch(tech);\n }\n\n el.resetSourceset_ = function () {\n el.resetSourceset_ = null;\n el.load = oldLoad;\n el.setAttribute = oldSetAttribute;\n Object.defineProperty(el, 'src', srcDescriptor);\n if (el.resetSourceWatch_) {\n el.resetSourceWatch_();\n }\n };\n};\n\nvar _templateObject$2 = taggedTemplateLiteralLoose(['Text Tracks are being loaded from another origin but the crossorigin attribute isn\\'t used.\\n This may prevent text tracks from loading.'], ['Text Tracks are being loaded from another origin but the crossorigin attribute isn\\'t used.\\n This may prevent text tracks from loading.']);\n\n/**\n * @file html5.js\n */\n/**\n * HTML5 Media Controller - Wrapper for HTML5 Media API\n *\n * @mixes Tech~SouceHandlerAdditions\n * @extends Tech\n */\n\nvar Html5 = function (_Tech) {\n inherits(Html5, _Tech);\n\n /**\n * Create an instance of this Tech.\n *\n * @param {Object} [options]\n * The key/value store of player options.\n *\n * @param {Component~ReadyCallback} ready\n * Callback function to call when the `HTML5` Tech is ready.\n */\n function Html5(options, ready) {\n classCallCheck(this, Html5);\n\n var _this = possibleConstructorReturn(this, _Tech.call(this, options, ready));\n\n var source = options.source;\n var crossoriginTracks = false;\n\n // Set the source if one is provided\n // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)\n // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source\n // anyway so the error gets fired.\n if (source && (_this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {\n _this.setSource(source);\n } else {\n _this.handleLateInit_(_this.el_);\n }\n\n // setup sourceset after late sourceset/init\n if (options.enableSourceset) {\n _this.setupSourcesetHandling_();\n }\n\n if (_this.el_.hasChildNodes()) {\n\n var nodes = _this.el_.childNodes;\n var nodesLength = nodes.length;\n var removeNodes = [];\n\n while (nodesLength--) {\n var node = nodes[nodesLength];\n var nodeName = node.nodeName.toLowerCase();\n\n if (nodeName === 'track') {\n if (!_this.featuresNativeTextTracks) {\n // Empty video tag tracks so the built-in player doesn't use them also.\n // This may not be fast enough to stop HTML5 browsers from reading the tags\n // so we'll need to turn off any default tracks if we're manually doing\n // captions and subtitles. videoElement.textTracks\n removeNodes.push(node);\n } else {\n // store HTMLTrackElement and TextTrack to remote list\n _this.remoteTextTrackEls().addTrackElement_(node);\n _this.remoteTextTracks().addTrack(node.track);\n _this.textTracks().addTrack(node.track);\n if (!crossoriginTracks && !_this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {\n crossoriginTracks = true;\n }\n }\n }\n }\n\n for (var i = 0; i < removeNodes.length; i++) {\n _this.el_.removeChild(removeNodes[i]);\n }\n }\n\n _this.proxyNativeTracks_();\n if (_this.featuresNativeTextTracks && crossoriginTracks) {\n log$1.warn(tsml(_templateObject$2));\n }\n\n // prevent iOS Safari from disabling metadata text tracks during native playback\n _this.restoreMetadataTracksInIOSNativePlayer_();\n\n // Determine if native controls should be used\n // Our goal should be to get the custom controls on mobile solid everywhere\n // so we can remove this all together. Right now this will block custom\n // controls on touch enabled laptops like the Chrome Pixel\n if ((TOUCH_ENABLED || IS_IPHONE || IS_NATIVE_ANDROID) && options.nativeControlsForTouch === true) {\n _this.setControls(true);\n }\n\n // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`\n // into a `fullscreenchange` event\n _this.proxyWebkitFullscreen_();\n\n _this.triggerReady();\n return _this;\n }\n\n /**\n * Dispose of `HTML5` media element and remove all tracks.\n */\n\n\n Html5.prototype.dispose = function dispose() {\n if (this.el_ && this.el_.resetSourceset_) {\n this.el_.resetSourceset_();\n }\n Html5.disposeMediaElement(this.el_);\n this.options_ = null;\n\n // tech will handle clearing of the emulated track list\n _Tech.prototype.dispose.call(this);\n };\n\n /**\n * Modify the media element so that we can detect when\n * the source is changed. Fires `sourceset` just after the source has changed\n */\n\n\n Html5.prototype.setupSourcesetHandling_ = function setupSourcesetHandling_() {\n setupSourceset(this);\n };\n\n /**\n * When a captions track is enabled in the iOS Safari native player, all other\n * tracks are disabled (including metadata tracks), which nulls all of their\n * associated cue points. This will restore metadata tracks to their pre-fullscreen\n * state in those cases so that cue points are not needlessly lost.\n *\n * @private\n */\n\n\n Html5.prototype.restoreMetadataTracksInIOSNativePlayer_ = function restoreMetadataTracksInIOSNativePlayer_() {\n var textTracks = this.textTracks();\n var metadataTracksPreFullscreenState = void 0;\n\n // captures a snapshot of every metadata track's current state\n var takeMetadataTrackSnapshot = function takeMetadataTrackSnapshot() {\n metadataTracksPreFullscreenState = [];\n\n for (var i = 0; i < textTracks.length; i++) {\n var track = textTracks[i];\n\n if (track.kind === 'metadata') {\n metadataTracksPreFullscreenState.push({\n track: track,\n storedMode: track.mode\n });\n }\n }\n };\n\n // snapshot each metadata track's initial state, and update the snapshot\n // each time there is a track 'change' event\n takeMetadataTrackSnapshot();\n textTracks.addEventListener('change', takeMetadataTrackSnapshot);\n\n this.on('dispose', function () {\n return textTracks.removeEventListener('change', takeMetadataTrackSnapshot);\n });\n\n var restoreTrackMode = function restoreTrackMode() {\n for (var i = 0; i < metadataTracksPreFullscreenState.length; i++) {\n var storedTrack = metadataTracksPreFullscreenState[i];\n\n if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {\n storedTrack.track.mode = storedTrack.storedMode;\n }\n }\n // we only want this handler to be executed on the first 'change' event\n textTracks.removeEventListener('change', restoreTrackMode);\n };\n\n // when we enter fullscreen playback, stop updating the snapshot and\n // restore all track modes to their pre-fullscreen state\n this.on('webkitbeginfullscreen', function () {\n textTracks.removeEventListener('change', takeMetadataTrackSnapshot);\n\n // remove the listener before adding it just in case it wasn't previously removed\n textTracks.removeEventListener('change', restoreTrackMode);\n textTracks.addEventListener('change', restoreTrackMode);\n });\n\n // start updating the snapshot again after leaving fullscreen\n this.on('webkitendfullscreen', function () {\n // remove the listener before adding it just in case it wasn't previously removed\n textTracks.removeEventListener('change', takeMetadataTrackSnapshot);\n textTracks.addEventListener('change', takeMetadataTrackSnapshot);\n\n // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback\n textTracks.removeEventListener('change', restoreTrackMode);\n });\n };\n\n /**\n * Proxy all native track list events to our track lists if the browser we are playing\n * in supports that type of track list.\n *\n * @private\n */\n\n\n Html5.prototype.proxyNativeTracks_ = function proxyNativeTracks_() {\n var _this2 = this;\n\n NORMAL.names.forEach(function (name) {\n var props = NORMAL[name];\n var elTracks = _this2.el()[props.getterName];\n var techTracks = _this2[props.getterName]();\n\n if (!_this2['featuresNative' + props.capitalName + 'Tracks'] || !elTracks || !elTracks.addEventListener) {\n return;\n }\n var listeners = {\n change: function change(e) {\n techTracks.trigger({\n type: 'change',\n target: techTracks,\n currentTarget: techTracks,\n srcElement: techTracks\n });\n },\n addtrack: function addtrack(e) {\n techTracks.addTrack(e.track);\n },\n removetrack: function removetrack(e) {\n techTracks.removeTrack(e.track);\n }\n };\n var removeOldTracks = function removeOldTracks() {\n var removeTracks = [];\n\n for (var i = 0; i < techTracks.length; i++) {\n var found = false;\n\n for (var j = 0; j < elTracks.length; j++) {\n if (elTracks[j] === techTracks[i]) {\n found = true;\n break;\n }\n }\n\n if (!found) {\n removeTracks.push(techTracks[i]);\n }\n }\n\n while (removeTracks.length) {\n techTracks.removeTrack(removeTracks.shift());\n }\n };\n\n Object.keys(listeners).forEach(function (eventName) {\n var listener = listeners[eventName];\n\n elTracks.addEventListener(eventName, listener);\n _this2.on('dispose', function (e) {\n return elTracks.removeEventListener(eventName, listener);\n });\n });\n\n // Remove (native) tracks that are not used anymore\n _this2.on('loadstart', removeOldTracks);\n _this2.on('dispose', function (e) {\n return _this2.off('loadstart', removeOldTracks);\n });\n });\n };\n\n /**\n * Create the `Html5` Tech's DOM element.\n *\n * @return {Element}\n * The element that gets created.\n */\n\n\n Html5.prototype.createEl = function createEl$$1() {\n var el = this.options_.tag;\n\n // Check if this browser supports moving the element into the box.\n // On the iPhone video will break if you move the element,\n // So we have to create a brand new element.\n // If we ingested the player div, we do not need to move the media element.\n if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {\n\n // If the original tag is still there, clone and remove it.\n if (el) {\n var clone = el.cloneNode(true);\n\n if (el.parentNode) {\n el.parentNode.insertBefore(clone, el);\n }\n Html5.disposeMediaElement(el);\n el = clone;\n } else {\n el = document.createElement('video');\n\n // determine if native controls should be used\n var tagAttributes = this.options_.tag && getAttributes(this.options_.tag);\n var attributes = mergeOptions({}, tagAttributes);\n\n if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {\n delete attributes.controls;\n }\n\n setAttributes(el, assign(attributes, {\n id: this.options_.techId,\n 'class': 'vjs-tech'\n }));\n }\n\n el.playerId = this.options_.playerId;\n }\n\n if (typeof this.options_.preload !== 'undefined') {\n setAttribute(el, 'preload', this.options_.preload);\n }\n\n // Update specific tag settings, in case they were overridden\n // `autoplay` has to be *last* so that `muted` and `playsinline` are present\n // when iOS/Safari or other browsers attempt to autoplay.\n var settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];\n\n for (var i = 0; i < settingsAttrs.length; i++) {\n var attr = settingsAttrs[i];\n var value = this.options_[attr];\n\n if (typeof value !== 'undefined') {\n if (value) {\n setAttribute(el, attr, attr);\n } else {\n removeAttribute(el, attr);\n }\n el[attr] = value;\n }\n }\n\n return el;\n };\n\n /**\n * This will be triggered if the loadstart event has already fired, before videojs was\n * ready. Two known examples of when this can happen are:\n * 1. If we're loading the playback object after it has started loading\n * 2. The media is already playing the (often with autoplay on) then\n *\n * This function will fire another loadstart so that videojs can catchup.\n *\n * @fires Tech#loadstart\n *\n * @return {undefined}\n * returns nothing.\n */\n\n\n Html5.prototype.handleLateInit_ = function handleLateInit_(el) {\n if (el.networkState === 0 || el.networkState === 3) {\n // The video element hasn't started loading the source yet\n // or didn't find a source\n return;\n }\n\n if (el.readyState === 0) {\n // NetworkState is set synchronously BUT loadstart is fired at the\n // end of the current stack, usually before setInterval(fn, 0).\n // So at this point we know loadstart may have already fired or is\n // about to fire, and either way the player hasn't seen it yet.\n // We don't want to fire loadstart prematurely here and cause a\n // double loadstart so we'll wait and see if it happens between now\n // and the next loop, and fire it if not.\n // HOWEVER, we also want to make sure it fires before loadedmetadata\n // which could also happen between now and the next loop, so we'll\n // watch for that also.\n var loadstartFired = false;\n var setLoadstartFired = function setLoadstartFired() {\n loadstartFired = true;\n };\n\n this.on('loadstart', setLoadstartFired);\n\n var triggerLoadstart = function triggerLoadstart() {\n // We did miss the original loadstart. Make sure the player\n // sees loadstart before loadedmetadata\n if (!loadstartFired) {\n this.trigger('loadstart');\n }\n };\n\n this.on('loadedmetadata', triggerLoadstart);\n\n this.ready(function () {\n this.off('loadstart', setLoadstartFired);\n this.off('loadedmetadata', triggerLoadstart);\n\n if (!loadstartFired) {\n // We did miss the original native loadstart. Fire it now.\n this.trigger('loadstart');\n }\n });\n\n return;\n }\n\n // From here on we know that loadstart already fired and we missed it.\n // The other readyState events aren't as much of a problem if we double\n // them, so not going to go to as much trouble as loadstart to prevent\n // that unless we find reason to.\n var eventsToTrigger = ['loadstart'];\n\n // loadedmetadata: newly equal to HAVE_METADATA (1) or greater\n eventsToTrigger.push('loadedmetadata');\n\n // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater\n if (el.readyState >= 2) {\n eventsToTrigger.push('loadeddata');\n }\n\n // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater\n if (el.readyState >= 3) {\n eventsToTrigger.push('canplay');\n }\n\n // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)\n if (el.readyState >= 4) {\n eventsToTrigger.push('canplaythrough');\n }\n\n // We still need to give the player time to add event listeners\n this.ready(function () {\n eventsToTrigger.forEach(function (type) {\n this.trigger(type);\n }, this);\n });\n };\n\n /**\n * Set current time for the `HTML5` tech.\n *\n * @param {number} seconds\n * Set the current time of the media to this.\n */\n\n\n Html5.prototype.setCurrentTime = function setCurrentTime(seconds) {\n try {\n this.el_.currentTime = seconds;\n } catch (e) {\n log$1(e, 'Video is not ready. (Video.js)');\n // this.warning(VideoJS.warnings.videoNotReady);\n }\n };\n\n /**\n * Get the current duration of the HTML5 media element.\n *\n * @return {number}\n * The duration of the media or 0 if there is no duration.\n */\n\n\n Html5.prototype.duration = function duration() {\n var _this3 = this;\n\n // Android Chrome will report duration as Infinity for VOD HLS until after\n // playback has started, which triggers the live display erroneously.\n // Return NaN if playback has not started and trigger a durationupdate once\n // the duration can be reliably known.\n if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {\n // Wait for the first `timeupdate` with currentTime > 0 - there may be\n // several with 0\n var checkProgress = function checkProgress() {\n if (_this3.el_.currentTime > 0) {\n // Trigger durationchange for genuinely live video\n if (_this3.el_.duration === Infinity) {\n _this3.trigger('durationchange');\n }\n _this3.off('timeupdate', checkProgress);\n }\n };\n\n this.on('timeupdate', checkProgress);\n return NaN;\n }\n return this.el_.duration || NaN;\n };\n\n /**\n * Get the current width of the HTML5 media element.\n *\n * @return {number}\n * The width of the HTML5 media element.\n */\n\n\n Html5.prototype.width = function width() {\n return this.el_.offsetWidth;\n };\n\n /**\n * Get the current height of the HTML5 media element.\n *\n * @return {number}\n * The heigth of the HTML5 media element.\n */\n\n\n Html5.prototype.height = function height() {\n return this.el_.offsetHeight;\n };\n\n /**\n * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into\n * `fullscreenchange` event.\n *\n * @private\n * @fires fullscreenchange\n * @listens webkitendfullscreen\n * @listens webkitbeginfullscreen\n * @listens webkitbeginfullscreen\n */\n\n\n Html5.prototype.proxyWebkitFullscreen_ = function proxyWebkitFullscreen_() {\n var _this4 = this;\n\n if (!('webkitDisplayingFullscreen' in this.el_)) {\n return;\n }\n\n var endFn = function endFn() {\n this.trigger('fullscreenchange', { isFullscreen: false });\n };\n\n var beginFn = function beginFn() {\n if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {\n this.one('webkitendfullscreen', endFn);\n\n this.trigger('fullscreenchange', { isFullscreen: true });\n }\n };\n\n this.on('webkitbeginfullscreen', beginFn);\n this.on('dispose', function () {\n _this4.off('webkitbeginfullscreen', beginFn);\n _this4.off('webkitendfullscreen', endFn);\n });\n };\n\n /**\n * Check if fullscreen is supported on the current playback device.\n *\n * @return {boolean}\n * - True if fullscreen is supported.\n * - False if fullscreen is not supported.\n */\n\n\n Html5.prototype.supportsFullScreen = function supportsFullScreen() {\n if (typeof this.el_.webkitEnterFullScreen === 'function') {\n var userAgent = window.navigator && window.navigator.userAgent || '';\n\n // Seems to be broken in Chromium/Chrome && Safari in Leopard\n if (/Android/.test(userAgent) || !/Chrome|Mac OS X 10.5/.test(userAgent)) {\n return true;\n }\n }\n return false;\n };\n\n /**\n * Request that the `HTML5` Tech enter fullscreen.\n */\n\n\n Html5.prototype.enterFullScreen = function enterFullScreen() {\n var video = this.el_;\n\n if (video.paused && video.networkState <= video.HAVE_METADATA) {\n // attempt to prime the video element for programmatic access\n // this isn't necessary on the desktop but shouldn't hurt\n this.el_.play();\n\n // playing and pausing synchronously during the transition to fullscreen\n // can get iOS ~6.1 devices into a play/pause loop\n this.setTimeout(function () {\n video.pause();\n video.webkitEnterFullScreen();\n }, 0);\n } else {\n video.webkitEnterFullScreen();\n }\n };\n\n /**\n * Request that the `HTML5` Tech exit fullscreen.\n */\n\n\n Html5.prototype.exitFullScreen = function exitFullScreen() {\n this.el_.webkitExitFullScreen();\n };\n\n /**\n * A getter/setter for the `Html5` Tech's source object.\n * > Note: Please use {@link Html5#setSource}\n *\n * @param {Tech~SourceObject} [src]\n * The source object you want to set on the `HTML5` techs element.\n *\n * @return {Tech~SourceObject|undefined}\n * - The current source object when a source is not passed in.\n * - undefined when setting\n *\n * @deprecated Since version 5.\n */\n\n\n Html5.prototype.src = function src(_src) {\n if (_src === undefined) {\n return this.el_.src;\n }\n\n // Setting src through `src` instead of `setSrc` will be deprecated\n this.setSrc(_src);\n };\n\n /**\n * Reset the tech by removing all sources and then calling\n * {@link Html5.resetMediaElement}.\n */\n\n\n Html5.prototype.reset = function reset() {\n Html5.resetMediaElement(this.el_);\n };\n\n /**\n * Get the current source on the `HTML5` Tech. Falls back to returning the source from\n * the HTML5 media element.\n *\n * @return {Tech~SourceObject}\n * The current source object from the HTML5 tech. With a fallback to the\n * elements source.\n */\n\n\n Html5.prototype.currentSrc = function currentSrc() {\n if (this.currentSource_) {\n return this.currentSource_.src;\n }\n return this.el_.currentSrc;\n };\n\n /**\n * Set controls attribute for the HTML5 media Element.\n *\n * @param {string} val\n * Value to set the controls attribute to\n */\n\n\n Html5.prototype.setControls = function setControls(val) {\n this.el_.controls = !!val;\n };\n\n /**\n * Create and returns a remote {@link TextTrack} object.\n *\n * @param {string} kind\n * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n *\n * @param {string} [label]\n * Label to identify the text track\n *\n * @param {string} [language]\n * Two letter language abbreviation\n *\n * @return {TextTrack}\n * The TextTrack that gets created.\n */\n\n\n Html5.prototype.addTextTrack = function addTextTrack(kind, label, language) {\n if (!this.featuresNativeTextTracks) {\n return _Tech.prototype.addTextTrack.call(this, kind, label, language);\n }\n\n return this.el_.addTextTrack(kind, label, language);\n };\n\n /**\n * Creates either native TextTrack or an emulated TextTrack depending\n * on the value of `featuresNativeTextTracks`\n *\n * @param {Object} options\n * The object should contain the options to intialize the TextTrack with.\n *\n * @param {string} [options.kind]\n * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).\n *\n * @param {string} [options.label].\n * Label to identify the text track\n *\n * @param {string} [options.language]\n * Two letter language abbreviation.\n *\n * @param {boolean} [options.default]\n * Default this track to on.\n *\n * @param {string} [options.id]\n * The internal id to assign this track.\n *\n * @param {string} [options.src]\n * A source url for the track.\n *\n * @return {HTMLTrackElement}\n * The track element that gets created.\n */\n\n\n Html5.prototype.createRemoteTextTrack = function createRemoteTextTrack(options) {\n if (!this.featuresNativeTextTracks) {\n return _Tech.prototype.createRemoteTextTrack.call(this, options);\n }\n var htmlTrackElement = document.createElement('track');\n\n if (options.kind) {\n htmlTrackElement.kind = options.kind;\n }\n if (options.label) {\n htmlTrackElement.label = options.label;\n }\n if (options.language || options.srclang) {\n htmlTrackElement.srclang = options.language || options.srclang;\n }\n if (options['default']) {\n htmlTrackElement['default'] = options['default'];\n }\n if (options.id) {\n htmlTrackElement.id = options.id;\n }\n if (options.src) {\n htmlTrackElement.src = options.src;\n }\n\n return htmlTrackElement;\n };\n\n /**\n * Creates a remote text track object and returns an html track element.\n *\n * @param {Object} options The object should contain values for\n * kind, language, label, and src (location of the WebVTT file)\n * @param {Boolean} [manualCleanup=true] if set to false, the TextTrack will be\n * automatically removed from the video element whenever the source changes\n * @return {HTMLTrackElement} An Html Track Element.\n * This can be an emulated {@link HTMLTrackElement} or a native one.\n * @deprecated The default value of the \"manualCleanup\" parameter will default\n * to \"false\" in upcoming versions of Video.js\n */\n\n\n Html5.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {\n var htmlTrackElement = _Tech.prototype.addRemoteTextTrack.call(this, options, manualCleanup);\n\n if (this.featuresNativeTextTracks) {\n this.el().appendChild(htmlTrackElement);\n }\n\n return htmlTrackElement;\n };\n\n /**\n * Remove remote `TextTrack` from `TextTrackList` object\n *\n * @param {TextTrack} track\n * `TextTrack` object to remove\n */\n\n\n Html5.prototype.removeRemoteTextTrack = function removeRemoteTextTrack(track) {\n _Tech.prototype.removeRemoteTextTrack.call(this, track);\n\n if (this.featuresNativeTextTracks) {\n var tracks = this.$$('track');\n\n var i = tracks.length;\n\n while (i--) {\n if (track === tracks[i] || track === tracks[i].track) {\n this.el().removeChild(tracks[i]);\n }\n }\n }\n };\n\n /**\n * Gets available media playback quality metrics as specified by the W3C's Media\n * Playback Quality API.\n *\n * @see [Spec]{@link https://wicg.github.io/media-playback-quality}\n *\n * @return {Object}\n * An object with supported media playback quality metrics\n */\n\n\n Html5.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {\n if (typeof this.el().getVideoPlaybackQuality === 'function') {\n return this.el().getVideoPlaybackQuality();\n }\n\n var videoPlaybackQuality = {};\n\n if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {\n videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;\n videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;\n }\n\n if (window.performance && typeof window.performance.now === 'function') {\n videoPlaybackQuality.creationTime = window.performance.now();\n } else if (window.performance && window.performance.timing && typeof window.performance.timing.navigationStart === 'number') {\n videoPlaybackQuality.creationTime = window.Date.now() - window.performance.timing.navigationStart;\n }\n\n return videoPlaybackQuality;\n };\n\n return Html5;\n}(Tech);\n\n/* HTML5 Support Testing ---------------------------------------------------- */\n\nif (isReal()) {\n\n /**\n * Element for testing browser HTML5 media capabilities\n *\n * @type {Element}\n * @constant\n * @private\n */\n Html5.TEST_VID = document.createElement('video');\n var track = document.createElement('track');\n\n track.kind = 'captions';\n track.srclang = 'en';\n track.label = 'English';\n Html5.TEST_VID.appendChild(track);\n}\n\n/**\n * Check if HTML5 media is supported by this browser/device.\n *\n * @return {boolean}\n * - True if HTML5 media is supported.\n * - False if HTML5 media is not supported.\n */\nHtml5.isSupported = function () {\n // IE9 with no Media Player is a LIAR! (#984)\n try {\n Html5.TEST_VID.volume = 0.5;\n } catch (e) {\n return false;\n }\n\n return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);\n};\n\n/**\n * Check if the tech can support the given type\n *\n * @param {string} type\n * The mimetype to check\n * @return {string} 'probably', 'maybe', or '' (empty string)\n */\nHtml5.canPlayType = function (type) {\n return Html5.TEST_VID.canPlayType(type);\n};\n\n/**\n * Check if the tech can support the given source\n * @param {Object} srcObj\n * The source object\n * @param {Object} options\n * The options passed to the tech\n * @return {string} 'probably', 'maybe', or '' (empty string)\n */\nHtml5.canPlaySource = function (srcObj, options) {\n return Html5.canPlayType(srcObj.type);\n};\n\n/**\n * Check if the volume can be changed in this browser/device.\n * Volume cannot be changed in a lot of mobile devices.\n * Specifically, it can't be changed from 1 on iOS.\n *\n * @return {boolean}\n * - True if volume can be controlled\n * - False otherwise\n */\nHtml5.canControlVolume = function () {\n // IE will error if Windows Media Player not installed #3315\n try {\n var volume = Html5.TEST_VID.volume;\n\n Html5.TEST_VID.volume = volume / 2 + 0.1;\n return volume !== Html5.TEST_VID.volume;\n } catch (e) {\n return false;\n }\n};\n\n/**\n * Check if the volume can be muted in this browser/device.\n * Some devices, e.g. iOS, don't allow changing volume\n * but permits muting/unmuting.\n *\n * @return {bolean}\n * - True if volume can be muted\n * - False otherwise\n */\nHtml5.canMuteVolume = function () {\n try {\n var muted = Html5.TEST_VID.muted;\n\n // in some versions of iOS muted property doesn't always\n // work, so we want to set both property and attribute\n Html5.TEST_VID.muted = !muted;\n if (Html5.TEST_VID.muted) {\n setAttribute(Html5.TEST_VID, 'muted', 'muted');\n } else {\n removeAttribute(Html5.TEST_VID, 'muted', 'muted');\n }\n return muted !== Html5.TEST_VID.muted;\n } catch (e) {\n return false;\n }\n};\n\n/**\n * Check if the playback rate can be changed in this browser/device.\n *\n * @return {boolean}\n * - True if playback rate can be controlled\n * - False otherwise\n */\nHtml5.canControlPlaybackRate = function () {\n // Playback rate API is implemented in Android Chrome, but doesn't do anything\n // https://github.com/videojs/video.js/issues/3180\n if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {\n return false;\n }\n // IE will error if Windows Media Player not installed #3315\n try {\n var playbackRate = Html5.TEST_VID.playbackRate;\n\n Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;\n return playbackRate !== Html5.TEST_VID.playbackRate;\n } catch (e) {\n return false;\n }\n};\n\n/**\n * Check if we can override a video/audio elements attributes, with\n * Object.defineProperty.\n *\n * @return {boolean}\n * - True if builtin attributes can be overriden\n * - False otherwise\n */\nHtml5.canOverrideAttributes = function () {\n if (IS_IE8) {\n return false;\n }\n // if we cannot overwrite the src/innerHTML property, there is no support\n // iOS 7 safari for instance cannot do this.\n try {\n var noop = function noop() {};\n\n Object.defineProperty(document.createElement('video'), 'src', { get: noop, set: noop });\n Object.defineProperty(document.createElement('audio'), 'src', { get: noop, set: noop });\n Object.defineProperty(document.createElement('video'), 'innerHTML', { get: noop, set: noop });\n Object.defineProperty(document.createElement('audio'), 'innerHTML', { get: noop, set: noop });\n } catch (e) {\n return false;\n }\n\n return true;\n};\n\n/**\n * Check to see if native `TextTrack`s are supported by this browser/device.\n *\n * @return {boolean}\n * - True if native `TextTrack`s are supported.\n * - False otherwise\n */\nHtml5.supportsNativeTextTracks = function () {\n return IS_ANY_SAFARI || IS_IOS && IS_CHROME;\n};\n\n/**\n * Check to see if native `VideoTrack`s are supported by this browser/device\n *\n * @return {boolean}\n * - True if native `VideoTrack`s are supported.\n * - False otherwise\n */\nHtml5.supportsNativeVideoTracks = function () {\n return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);\n};\n\n/**\n * Check to see if native `AudioTrack`s are supported by this browser/device\n *\n * @return {boolean}\n * - True if native `AudioTrack`s are supported.\n * - False otherwise\n */\nHtml5.supportsNativeAudioTracks = function () {\n return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);\n};\n\n/**\n * An array of events available on the Html5 tech.\n *\n * @private\n * @type {Array}\n */\nHtml5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];\n\n/**\n * Boolean indicating whether the `Tech` supports volume control.\n *\n * @type {boolean}\n * @default {@link Html5.canControlVolume}\n */\nHtml5.prototype.featuresVolumeControl = Html5.canControlVolume();\n\n/**\n * Boolean indicating whether the `Tech` supports muting volume.\n *\n * @type {bolean}\n * @default {@link Html5.canMuteVolume}\n */\nHtml5.prototype.featuresMuteControl = Html5.canMuteVolume();\n\n/**\n * Boolean indicating whether the `Tech` supports changing the speed at which the media\n * plays. Examples:\n * - Set player to play 2x (twice) as fast\n * - Set player to play 0.5x (half) as fast\n *\n * @type {boolean}\n * @default {@link Html5.canControlPlaybackRate}\n */\nHtml5.prototype.featuresPlaybackRate = Html5.canControlPlaybackRate();\n\n/**\n * Boolean indicating wether the `Tech` supports the `sourceset` event.\n *\n * @type {boolean}\n * @default\n */\nHtml5.prototype.featuresSourceset = Html5.canOverrideAttributes();\n\n/**\n * Boolean indicating whether the `HTML5` tech currently supports the media element\n * moving in the DOM. iOS breaks if you move the media element, so this is set this to\n * false there. Everywhere else this should be true.\n *\n * @type {boolean}\n * @default\n */\nHtml5.prototype.movingMediaElementInDOM = !IS_IOS;\n\n// TODO: Previous comment: No longer appears to be used. Can probably be removed.\n// Is this true?\n/**\n * Boolean indicating whether the `HTML5` tech currently supports automatic media resize\n * when going into fullscreen.\n *\n * @type {boolean}\n * @default\n */\nHtml5.prototype.featuresFullscreenResize = true;\n\n/**\n * Boolean indicating whether the `HTML5` tech currently supports the progress event.\n * If this is false, manual `progress` events will be triggred instead.\n *\n * @type {boolean}\n * @default\n */\nHtml5.prototype.featuresProgressEvents = true;\n\n/**\n * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.\n * If this is false, manual `timeupdate` events will be triggred instead.\n *\n * @default\n */\nHtml5.prototype.featuresTimeupdateEvents = true;\n\n/**\n * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.\n *\n * @type {boolean}\n * @default {@link Html5.supportsNativeTextTracks}\n */\nHtml5.prototype.featuresNativeTextTracks = Html5.supportsNativeTextTracks();\n\n/**\n * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.\n *\n * @type {boolean}\n * @default {@link Html5.supportsNativeVideoTracks}\n */\nHtml5.prototype.featuresNativeVideoTracks = Html5.supportsNativeVideoTracks();\n\n/**\n * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.\n *\n * @type {boolean}\n * @default {@link Html5.supportsNativeAudioTracks}\n */\nHtml5.prototype.featuresNativeAudioTracks = Html5.supportsNativeAudioTracks();\n\n// HTML5 Feature detection and Device Fixes --------------------------------- //\nvar canPlayType = Html5.TEST_VID && Html5.TEST_VID.constructor.prototype.canPlayType;\nvar mpegurlRE = /^application\\/(?:x-|vnd\\.apple\\.)mpegurl/i;\nvar mp4RE = /^video\\/mp4/i;\n\nHtml5.patchCanPlayType = function () {\n\n // Android 4.0 and above can play HLS to some extent but it reports being unable to do so\n // Firefox and Chrome report correctly\n if (ANDROID_VERSION >= 4.0 && !IS_FIREFOX && !IS_CHROME) {\n Html5.TEST_VID.constructor.prototype.canPlayType = function (type) {\n if (type && mpegurlRE.test(type)) {\n return 'maybe';\n }\n return canPlayType.call(this, type);\n };\n\n // Override Android 2.2 and less canPlayType method which is broken\n } else if (IS_OLD_ANDROID) {\n Html5.TEST_VID.constructor.prototype.canPlayType = function (type) {\n if (type && mp4RE.test(type)) {\n return 'maybe';\n }\n return canPlayType.call(this, type);\n };\n }\n};\n\nHtml5.unpatchCanPlayType = function () {\n var r = Html5.TEST_VID.constructor.prototype.canPlayType;\n\n Html5.TEST_VID.constructor.prototype.canPlayType = canPlayType;\n return r;\n};\n\n// by default, patch the media element\nHtml5.patchCanPlayType();\n\nHtml5.disposeMediaElement = function (el) {\n if (!el) {\n return;\n }\n\n if (el.parentNode) {\n el.parentNode.removeChild(el);\n }\n\n // remove any child track or source nodes to prevent their loading\n while (el.hasChildNodes()) {\n el.removeChild(el.firstChild);\n }\n\n // remove any src reference. not setting `src=''` because that causes a warning\n // in firefox\n el.removeAttribute('src');\n\n // force the media element to update its loading state by calling load()\n // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)\n if (typeof el.load === 'function') {\n // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)\n (function () {\n try {\n el.load();\n } catch (e) {\n // not supported\n }\n })();\n }\n};\n\nHtml5.resetMediaElement = function (el) {\n if (!el) {\n return;\n }\n\n var sources = el.querySelectorAll('source');\n var i = sources.length;\n\n while (i--) {\n el.removeChild(sources[i]);\n }\n\n // remove any src reference.\n // not setting `src=''` because that throws an error\n el.removeAttribute('src');\n\n if (typeof el.load === 'function') {\n // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)\n (function () {\n try {\n el.load();\n } catch (e) {\n // satisfy linter\n }\n })();\n }\n};\n\n/* Native HTML5 element property wrapping ----------------------------------- */\n// Wrap native boolean attributes with getters that check both property and attribute\n// The list is as followed:\n// muted, defaultMuted, autoplay, controls, loop, playsinline\n[\n/**\n * Get the value of `muted` from the media element. `muted` indicates\n * that the volume for the media should be set to silent. This does not actually change\n * the `volume` attribute.\n *\n * @method Html5#muted\n * @return {boolean}\n * - True if the value of `volume` should be ignored and the audio set to silent.\n * - False if the value of `volume` should be used.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}\n */\n'muted',\n\n/**\n * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates\n * whether the media should start muted or not. Only changes the default state of the\n * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the\n * current state.\n *\n * @method Html5#defaultMuted\n * @return {boolean}\n * - The value of `defaultMuted` from the media element.\n * - True indicates that the media should start muted.\n * - False indicates that the media should not start muted\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}\n */\n'defaultMuted',\n\n/**\n * Get the value of `autoplay` from the media element. `autoplay` indicates\n * that the media should start to play as soon as the page is ready.\n *\n * @method Html5#autoplay\n * @return {boolean}\n * - The value of `autoplay` from the media element.\n * - True indicates that the media should start as soon as the page loads.\n * - False indicates that the media should not start as soon as the page loads.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}\n */\n'autoplay',\n\n/**\n * Get the value of `controls` from the media element. `controls` indicates\n * whether the native media controls should be shown or hidden.\n *\n * @method Html5#controls\n * @return {boolean}\n * - The value of `controls` from the media element.\n * - True indicates that native controls should be showing.\n * - False indicates that native controls should be hidden.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}\n */\n'controls',\n\n/**\n * Get the value of `loop` from the media element. `loop` indicates\n * that the media should return to the start of the media and continue playing once\n * it reaches the end.\n *\n * @method Html5#loop\n * @return {boolean}\n * - The value of `loop` from the media element.\n * - True indicates that playback should seek back to start once\n * the end of a media is reached.\n * - False indicates that playback should not loop back to the start when the\n * end of the media is reached.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}\n */\n'loop',\n\n/**\n * Get the value of `playsinline` from the media element. `playsinline` indicates\n * to the browser that non-fullscreen playback is preferred when fullscreen\n * playback is the native default, such as in iOS Safari.\n *\n * @method Html5#playsinline\n * @return {boolean}\n * - The value of `playsinline` from the media element.\n * - True indicates that the media should play inline.\n * - False indicates that the media should not play inline.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}\n */\n'playsinline'].forEach(function (prop) {\n Html5.prototype[prop] = function () {\n return this.el_[prop] || this.el_.hasAttribute(prop);\n };\n});\n\n// Wrap native boolean attributes with setters that set both property and attribute\n// The list is as followed:\n// setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline\n// setControls is special-cased above\n[\n/**\n * Set the value of `muted` on the media element. `muted` indicates that the current\n * audio level should be silent.\n *\n * @method Html5#setMuted\n * @param {boolean} muted\n * - True if the audio should be set to silent\n * - False otherwise\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}\n */\n'muted',\n\n/**\n * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current\n * audio level should be silent, but will only effect the muted level on intial playback..\n *\n * @method Html5.prototype.setDefaultMuted\n * @param {boolean} defaultMuted\n * - True if the audio should be set to silent\n * - False otherwise\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}\n */\n'defaultMuted',\n\n/**\n * Set the value of `autoplay` on the media element. `autoplay` indicates\n * that the media should start to play as soon as the page is ready.\n *\n * @method Html5#setAutoplay\n * @param {boolean} autoplay\n * - True indicates that the media should start as soon as the page loads.\n * - False indicates that the media should not start as soon as the page loads.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}\n */\n'autoplay',\n\n/**\n * Set the value of `loop` on the media element. `loop` indicates\n * that the media should return to the start of the media and continue playing once\n * it reaches the end.\n *\n * @method Html5#setLoop\n * @param {boolean} loop\n * - True indicates that playback should seek back to start once\n * the end of a media is reached.\n * - False indicates that playback should not loop back to the start when the\n * end of the media is reached.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}\n */\n'loop',\n\n/**\n * Set the value of `playsinline` from the media element. `playsinline` indicates\n * to the browser that non-fullscreen playback is preferred when fullscreen\n * playback is the native default, such as in iOS Safari.\n *\n * @method Html5#setPlaysinline\n * @param {boolean} playsinline\n * - True indicates that the media should play inline.\n * - False indicates that the media should not play inline.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}\n */\n'playsinline'].forEach(function (prop) {\n Html5.prototype['set' + toTitleCase(prop)] = function (v) {\n this.el_[prop] = v;\n\n if (v) {\n this.el_.setAttribute(prop, prop);\n } else {\n this.el_.removeAttribute(prop);\n }\n };\n});\n\n// Wrap native properties with a getter\n// The list is as followed\n// paused, currentTime, buffered, volume, poster, preload, error, seeking\n// seekable, ended, playbackRate, defaultPlaybackRate, played, networkState\n// readyState, videoWidth, videoHeight\n[\n/**\n * Get the value of `paused` from the media element. `paused` indicates whether the media element\n * is currently paused or not.\n *\n * @method Html5#paused\n * @return {boolean}\n * The value of `paused` from the media element.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}\n */\n'paused',\n\n/**\n * Get the value of `currentTime` from the media element. `currentTime` indicates\n * the current second that the media is at in playback.\n *\n * @method Html5#currentTime\n * @return {number}\n * The value of `currentTime` from the media element.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}\n */\n'currentTime',\n\n/**\n * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`\n * object that represents the parts of the media that are already downloaded and\n * available for playback.\n *\n * @method Html5#buffered\n * @return {TimeRange}\n * The value of `buffered` from the media element.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}\n */\n'buffered',\n\n/**\n * Get the value of `volume` from the media element. `volume` indicates\n * the current playback volume of audio for a media. `volume` will be a value from 0\n * (silent) to 1 (loudest and default).\n *\n * @method Html5#volume\n * @return {number}\n * The value of `volume` from the media element. Value will be between 0-1.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}\n */\n'volume',\n\n/**\n * Get the value of `poster` from the media element. `poster` indicates\n * that the url of an image file that can/will be shown when no media data is available.\n *\n * @method Html5#poster\n * @return {string}\n * The value of `poster` from the media element. Value will be a url to an\n * image.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}\n */\n'poster',\n\n/**\n * Get the value of `preload` from the media element. `preload` indicates\n * what should download before the media is interacted with. It can have the following\n * values:\n * - none: nothing should be downloaded\n * - metadata: poster and the first few frames of the media may be downloaded to get\n * media dimensions and other metadata\n * - auto: allow the media and metadata for the media to be downloaded before\n * interaction\n *\n * @method Html5#preload\n * @return {string}\n * The value of `preload` from the media element. Will be 'none', 'metadata',\n * or 'auto'.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}\n */\n'preload',\n\n/**\n * Get the value of the `error` from the media element. `error` indicates any\n * MediaError that may have occured during playback. If error returns null there is no\n * current error.\n *\n * @method Html5#error\n * @return {MediaError|null}\n * The value of `error` from the media element. Will be `MediaError` if there\n * is a current error and null otherwise.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}\n */\n'error',\n\n/**\n * Get the value of `seeking` from the media element. `seeking` indicates whether the\n * media is currently seeking to a new position or not.\n *\n * @method Html5#seeking\n * @return {boolean}\n * - The value of `seeking` from the media element.\n * - True indicates that the media is currently seeking to a new position.\n * - Flase indicates that the media is not seeking to a new position at this time.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}\n */\n'seeking',\n\n/**\n * Get the value of `seekable` from the media element. `seekable` returns a\n * `TimeRange` object indicating ranges of time that can currently be `seeked` to.\n *\n * @method Html5#seekable\n * @return {TimeRange}\n * The value of `seekable` from the media element. A `TimeRange` object\n * indicating the current ranges of time that can be seeked to.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}\n */\n'seekable',\n\n/**\n * Get the value of `ended` from the media element. `ended` indicates whether\n * the media has reached the end or not.\n *\n * @method Html5#ended\n * @return {boolean}\n * - The value of `ended` from the media element.\n * - True indicates that the media has ended.\n * - False indicates that the media has not ended.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}\n */\n'ended',\n\n/**\n * Get the value of `playbackRate` from the media element. `playbackRate` indicates\n * the rate at which the media is currently playing back. Examples:\n * - if playbackRate is set to 2, media will play twice as fast.\n * - if playbackRate is set to 0.5, media will play half as fast.\n *\n * @method Html5#playbackRate\n * @return {number}\n * The value of `playbackRate` from the media element. A number indicating\n * the current playback speed of the media, where 1 is normal speed.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}\n */\n'playbackRate',\n\n/**\n * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates\n * the rate at which the media is currently playing back. This value will not indicate the current\n * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.\n *\n * Examples:\n * - if defaultPlaybackRate is set to 2, media will play twice as fast.\n * - if defaultPlaybackRate is set to 0.5, media will play half as fast.\n *\n * @method Html5.prototype.defaultPlaybackRate\n * @return {number}\n * The value of `defaultPlaybackRate` from the media element. A number indicating\n * the current playback speed of the media, where 1 is normal speed.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}\n */\n'defaultPlaybackRate',\n\n/**\n * Get the value of `played` from the media element. `played` returns a `TimeRange`\n * object representing points in the media timeline that have been played.\n *\n * @method Html5#played\n * @return {TimeRange}\n * The value of `played` from the media element. A `TimeRange` object indicating\n * the ranges of time that have been played.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}\n */\n'played',\n\n/**\n * Get the value of `networkState` from the media element. `networkState` indicates\n * the current network state. It returns an enumeration from the following list:\n * - 0: NETWORK_EMPTY\n * - 1: NEWORK_IDLE\n * - 2: NETWORK_LOADING\n * - 3: NETWORK_NO_SOURCE\n *\n * @method Html5#networkState\n * @return {number}\n * The value of `networkState` from the media element. This will be a number\n * from the list in the description.\n *\n * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}\n */\n'networkState',\n\n/**\n * Get the value of `readyState` from the media element. `readyState` indicates\n * the current state of the media element. It returns an enumeration from the\n * following list:\n * - 0: HAVE_NOTHING\n * - 1: HAVE_METADATA\n * - 2: HAVE_CURRENT_DATA\n * - 3: HAVE_FUTURE_DATA\n * - 4: HAVE_ENOUGH_DATA\n *\n * @method Html5#readyState\n * @return {number}\n * The value of `readyState` from the media element. This will be a number\n * from the list in the description.\n *\n * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}\n */\n'readyState',\n\n/**\n * Get the value of `videoWidth` from the video element. `videoWidth` indicates\n * the current width of the video in css pixels.\n *\n * @method Html5#videoWidth\n * @return {number}\n * The value of `videoWidth` from the video element. This will be a number\n * in css pixels.\n *\n * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}\n */\n'videoWidth',\n\n/**\n * Get the value of `videoHeight` from the video element. `videoHeigth` indicates\n * the current height of the video in css pixels.\n *\n * @method Html5#videoHeight\n * @return {number}\n * The value of `videoHeight` from the video element. This will be a number\n * in css pixels.\n *\n * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}\n */\n'videoHeight'].forEach(function (prop) {\n Html5.prototype[prop] = function () {\n return this.el_[prop];\n };\n});\n\n// Wrap native properties with a setter in this format:\n// set + toTitleCase(name)\n// The list is as follows:\n// setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate\n[\n/**\n * Set the value of `volume` on the media element. `volume` indicates the current\n * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and\n * so on.\n *\n * @method Html5#setVolume\n * @param {number} percentAsDecimal\n * The volume percent as a decimal. Valid range is from 0-1.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}\n */\n'volume',\n\n/**\n * Set the value of `src` on the media element. `src` indicates the current\n * {@link Tech~SourceObject} for the media.\n *\n * @method Html5#setSrc\n * @param {Tech~SourceObject} src\n * The source object to set as the current source.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}\n */\n'src',\n\n/**\n * Set the value of `poster` on the media element. `poster` is the url to\n * an image file that can/will be shown when no media data is available.\n *\n * @method Html5#setPoster\n * @param {string} poster\n * The url to an image that should be used as the `poster` for the media\n * element.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}\n */\n'poster',\n\n/**\n * Set the value of `preload` on the media element. `preload` indicates\n * what should download before the media is interacted with. It can have the following\n * values:\n * - none: nothing should be downloaded\n * - metadata: poster and the first few frames of the media may be downloaded to get\n * media dimensions and other metadata\n * - auto: allow the media and metadata for the media to be downloaded before\n * interaction\n *\n * @method Html5#setPreload\n * @param {string} preload\n * The value of `preload` to set on the media element. Must be 'none', 'metadata',\n * or 'auto'.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}\n */\n'preload',\n\n/**\n * Set the value of `playbackRate` on the media element. `playbackRate` indicates\n * the rate at which the media should play back. Examples:\n * - if playbackRate is set to 2, media will play twice as fast.\n * - if playbackRate is set to 0.5, media will play half as fast.\n *\n * @method Html5#setPlaybackRate\n * @return {number}\n * The value of `playbackRate` from the media element. A number indicating\n * the current playback speed of the media, where 1 is normal speed.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}\n */\n'playbackRate',\n\n/**\n * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates\n * the rate at which the media should play back upon initial startup. Changing this value\n * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.\n *\n * Example Values:\n * - if playbackRate is set to 2, media will play twice as fast.\n * - if playbackRate is set to 0.5, media will play half as fast.\n *\n * @method Html5.prototype.setDefaultPlaybackRate\n * @return {number}\n * The value of `defaultPlaybackRate` from the media element. A number indicating\n * the current playback speed of the media, where 1 is normal speed.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}\n */\n'defaultPlaybackRate'].forEach(function (prop) {\n Html5.prototype['set' + toTitleCase(prop)] = function (v) {\n this.el_[prop] = v;\n };\n});\n\n// wrap native functions with a function\n// The list is as follows:\n// pause, load play\n[\n/**\n * A wrapper around the media elements `pause` function. This will call the `HTML5`\n * media elements `pause` function.\n *\n * @method Html5#pause\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}\n */\n'pause',\n\n/**\n * A wrapper around the media elements `load` function. This will call the `HTML5`s\n * media element `load` function.\n *\n * @method Html5#load\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}\n */\n'load',\n\n/**\n * A wrapper around the media elements `play` function. This will call the `HTML5`s\n * media element `play` function.\n *\n * @method Html5#play\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}\n */\n'play'].forEach(function (prop) {\n Html5.prototype[prop] = function () {\n return this.el_[prop]();\n };\n});\n\nTech.withSourceHandlers(Html5);\n\n/**\n * Native source handler for Html5, simply passes the source to the media element.\n *\n * @proprety {Tech~SourceObject} source\n * The source object\n *\n * @proprety {Html5} tech\n * The instance of the HTML5 tech.\n */\nHtml5.nativeSourceHandler = {};\n\n/**\n * Check if the media element can play the given mime type.\n *\n * @param {string} type\n * The mimetype to check\n *\n * @return {string}\n * 'probably', 'maybe', or '' (empty string)\n */\nHtml5.nativeSourceHandler.canPlayType = function (type) {\n // IE9 on Windows 7 without MediaPlayer throws an error here\n // https://github.com/videojs/video.js/issues/519\n try {\n return Html5.TEST_VID.canPlayType(type);\n } catch (e) {\n return '';\n }\n};\n\n/**\n * Check if the media element can handle a source natively.\n *\n * @param {Tech~SourceObject} source\n * The source object\n *\n * @param {Object} [options]\n * Options to be passed to the tech.\n *\n * @return {string}\n * 'probably', 'maybe', or '' (empty string).\n */\nHtml5.nativeSourceHandler.canHandleSource = function (source, options) {\n\n // If a type was provided we should rely on that\n if (source.type) {\n return Html5.nativeSourceHandler.canPlayType(source.type);\n\n // If no type, fall back to checking 'video/[EXTENSION]'\n } else if (source.src) {\n var ext = getFileExtension(source.src);\n\n return Html5.nativeSourceHandler.canPlayType('video/' + ext);\n }\n\n return '';\n};\n\n/**\n * Pass the source to the native media element.\n *\n * @param {Tech~SourceObject} source\n * The source object\n *\n * @param {Html5} tech\n * The instance of the Html5 tech\n *\n * @param {Object} [options]\n * The options to pass to the source\n */\nHtml5.nativeSourceHandler.handleSource = function (source, tech, options) {\n tech.setSrc(source.src);\n};\n\n/**\n * A noop for the native dispose function, as cleanup is not needed.\n */\nHtml5.nativeSourceHandler.dispose = function () {};\n\n// Register the native source handler\nHtml5.registerSourceHandler(Html5.nativeSourceHandler);\n\nTech.registerTech('Html5', Html5);\n\nvar _templateObject$1 = taggedTemplateLiteralLoose(['\\n Using the tech directly can be dangerous. I hope you know what you\\'re doing.\\n See https://github.com/videojs/video.js/issues/2617 for more info.\\n '], ['\\n Using the tech directly can be dangerous. I hope you know what you\\'re doing.\\n See https://github.com/videojs/video.js/issues/2617 for more info.\\n ']);\n\n/**\n * @file player.js\n */\n// Subclasses Component\n// The following imports are used only to ensure that the corresponding modules\n// are always included in the video.js package. Importing the modules will\n// execute them and they will register themselves with video.js.\n// Import Html5 tech, at least for disposing the original video tag.\n// The following tech events are simply re-triggered\n// on the player when they happen\nvar TECH_EVENTS_RETRIGGER = [\n/**\n * Fired while the user agent is downloading media data.\n *\n * @event Player#progress\n * @type {EventTarget~Event}\n */\n/**\n * Retrigger the `progress` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechProgress_\n * @fires Player#progress\n * @listens Tech#progress\n */\n'progress',\n\n/**\n * Fires when the loading of an audio/video is aborted.\n *\n * @event Player#abort\n * @type {EventTarget~Event}\n */\n/**\n * Retrigger the `abort` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechAbort_\n * @fires Player#abort\n * @listens Tech#abort\n */\n'abort',\n\n/**\n * Fires when the browser is intentionally not getting media data.\n *\n * @event Player#suspend\n * @type {EventTarget~Event}\n */\n/**\n * Retrigger the `suspend` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechSuspend_\n * @fires Player#suspend\n * @listens Tech#suspend\n */\n'suspend',\n\n/**\n * Fires when the current playlist is empty.\n *\n * @event Player#emptied\n * @type {EventTarget~Event}\n */\n/**\n * Retrigger the `emptied` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechEmptied_\n * @fires Player#emptied\n * @listens Tech#emptied\n */\n'emptied',\n/**\n * Fires when the browser is trying to get media data, but data is not available.\n *\n * @event Player#stalled\n * @type {EventTarget~Event}\n */\n/**\n * Retrigger the `stalled` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechStalled_\n * @fires Player#stalled\n * @listens Tech#stalled\n */\n'stalled',\n\n/**\n * Fires when the browser has loaded meta data for the audio/video.\n *\n * @event Player#loadedmetadata\n * @type {EventTarget~Event}\n */\n/**\n * Retrigger the `stalled` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechLoadedmetadata_\n * @fires Player#loadedmetadata\n * @listens Tech#loadedmetadata\n */\n'loadedmetadata',\n\n/**\n * Fires when the browser has loaded the current frame of the audio/video.\n *\n * @event Player#loadeddata\n * @type {event}\n */\n/**\n * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechLoaddeddata_\n * @fires Player#loadeddata\n * @listens Tech#loadeddata\n */\n'loadeddata',\n\n/**\n * Fires when the current playback position has changed.\n *\n * @event Player#timeupdate\n * @type {event}\n */\n/**\n * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechTimeUpdate_\n * @fires Player#timeupdate\n * @listens Tech#timeupdate\n */\n'timeupdate',\n\n/**\n * Fires when the video's intrinsic dimensions change\n *\n * @event Player#resize\n * @type {event}\n */\n/**\n * Retrigger the `resize` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechResize_\n * @fires Player#resize\n * @listens Tech#resize\n */\n'resize',\n\n/**\n * Fires when the volume has been changed\n *\n * @event Player#volumechange\n * @type {event}\n */\n/**\n * Retrigger the `volumechange` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechVolumechange_\n * @fires Player#volumechange\n * @listens Tech#volumechange\n */\n'volumechange',\n\n/**\n * Fires when the text track has been changed\n *\n * @event Player#texttrackchange\n * @type {event}\n */\n/**\n * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechTexttrackchange_\n * @fires Player#texttrackchange\n * @listens Tech#texttrackchange\n */\n'texttrackchange'];\n\n// events to queue when playback rate is zero\n// this is a hash for the sole purpose of mapping non-camel-cased event names\n// to camel-cased function names\nvar TECH_EVENTS_QUEUE = {\n canplay: 'CanPlay',\n canplaythrough: 'CanPlayThrough',\n playing: 'Playing',\n seeked: 'Seeked'\n};\n\n/**\n * An instance of the `Player` class is created when any of the Video.js setup methods\n * are used to initialize a video.\n *\n * After an instance has been created it can be accessed globally in two ways:\n * 1. By calling `videojs('example_video_1');`\n * 2. By using it directly via `videojs.players.example_video_1;`\n *\n * @extends Component\n */\n\nvar Player = function (_Component) {\n inherits(Player, _Component);\n\n /**\n * Create an instance of this class.\n *\n * @param {Element} tag\n * The original video DOM element used for configuring options.\n *\n * @param {Object} [options]\n * Object of option names and values.\n *\n * @param {Component~ReadyCallback} [ready]\n * Ready callback function.\n */\n function Player(tag, options, ready) {\n classCallCheck(this, Player);\n\n // Make sure tag ID exists\n tag.id = tag.id || options.id || 'vjs_video_' + newGUID();\n\n // Set Options\n // The options argument overrides options set in the video tag\n // which overrides globally set options.\n // This latter part coincides with the load order\n // (tag must exist before Player)\n options = assign(Player.getTagSettings(tag), options);\n\n // Delay the initialization of children because we need to set up\n // player properties first, and can't use `this` before `super()`\n options.initChildren = false;\n\n // Same with creating the element\n options.createEl = false;\n\n // don't auto mixin the evented mixin\n options.evented = false;\n\n // we don't want the player to report touch activity on itself\n // see enableTouchActivity in Component\n options.reportTouchActivity = false;\n\n // If language is not set, get the closest lang attribute\n if (!options.language) {\n if (typeof tag.closest === 'function') {\n var closest = tag.closest('[lang]');\n\n if (closest && closest.getAttribute) {\n options.language = closest.getAttribute('lang');\n }\n } else {\n var element = tag;\n\n while (element && element.nodeType === 1) {\n if (getAttributes(element).hasOwnProperty('lang')) {\n options.language = element.getAttribute('lang');\n break;\n }\n element = element.parentNode;\n }\n }\n }\n\n // Run base component initializing with new options\n\n // Tracks when a tech changes the poster\n var _this = possibleConstructorReturn(this, _Component.call(this, null, options, ready));\n\n _this.isPosterFromTech_ = false;\n\n // Holds callback info that gets queued when playback rate is zero\n // and a seek is happening\n _this.queuedCallbacks_ = [];\n\n // Turn off API access because we're loading a new tech that might load asynchronously\n _this.isReady_ = false;\n\n // Init state hasStarted_\n _this.hasStarted_ = false;\n\n // Init state userActive_\n _this.userActive_ = false;\n\n // if the global option object was accidentally blown away by\n // someone, bail early with an informative error\n if (!_this.options_ || !_this.options_.techOrder || !_this.options_.techOrder.length) {\n throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');\n }\n\n // Store the original tag used to set options\n _this.tag = tag;\n\n // Store the tag attributes used to restore html5 element\n _this.tagAttributes = tag && getAttributes(tag);\n\n // Update current language\n _this.language(_this.options_.language);\n\n // Update Supported Languages\n if (options.languages) {\n // Normalise player option languages to lowercase\n var languagesToLower = {};\n\n Object.getOwnPropertyNames(options.languages).forEach(function (name$$1) {\n languagesToLower[name$$1.toLowerCase()] = options.languages[name$$1];\n });\n _this.languages_ = languagesToLower;\n } else {\n _this.languages_ = Player.prototype.options_.languages;\n }\n\n // Cache for video property values.\n _this.cache_ = {};\n\n // Set poster\n _this.poster_ = options.poster || '';\n\n // Set controls\n _this.controls_ = !!options.controls;\n\n // Set default values for lastVolume\n _this.cache_.lastVolume = 1;\n\n // Original tag settings stored in options\n // now remove immediately so native controls don't flash.\n // May be turned back on by HTML5 tech if nativeControlsForTouch is true\n tag.controls = false;\n tag.removeAttribute('controls');\n\n // the attribute overrides the option\n if (tag.hasAttribute('autoplay')) {\n _this.options_.autoplay = true;\n } else {\n // otherwise use the setter to validate and\n // set the correct value.\n _this.autoplay(_this.options_.autoplay);\n }\n\n /*\n * Store the internal state of scrubbing\n *\n * @private\n * @return {Boolean} True if the user is scrubbing\n */\n _this.scrubbing_ = false;\n\n _this.el_ = _this.createEl();\n\n // Set default value for lastPlaybackRate\n _this.cache_.lastPlaybackRate = _this.defaultPlaybackRate();\n\n // Make this an evented object and use `el_` as its event bus.\n evented(_this, { eventBusKey: 'el_' });\n\n // We also want to pass the original player options to each component and plugin\n // as well so they don't need to reach back into the player for options later.\n // We also need to do another copy of this.options_ so we don't end up with\n // an infinite loop.\n var playerOptionsCopy = mergeOptions(_this.options_);\n\n // Load plugins\n if (options.plugins) {\n var plugins = options.plugins;\n\n Object.keys(plugins).forEach(function (name$$1) {\n if (typeof this[name$$1] === 'function') {\n this[name$$1](plugins[name$$1]);\n } else {\n throw new Error('plugin \"' + name$$1 + '\" does not exist');\n }\n }, _this);\n }\n\n _this.options_.playerOptions = playerOptionsCopy;\n\n _this.middleware_ = [];\n\n _this.initChildren();\n\n // Set isAudio based on whether or not an audio tag was used\n _this.isAudio(tag.nodeName.toLowerCase() === 'audio');\n\n // Update controls className. Can't do this when the controls are initially\n // set because the element doesn't exist yet.\n if (_this.controls()) {\n _this.addClass('vjs-controls-enabled');\n } else {\n _this.addClass('vjs-controls-disabled');\n }\n\n // Set ARIA label and region role depending on player type\n _this.el_.setAttribute('role', 'region');\n if (_this.isAudio()) {\n _this.el_.setAttribute('aria-label', _this.localize('Audio Player'));\n } else {\n _this.el_.setAttribute('aria-label', _this.localize('Video Player'));\n }\n\n if (_this.isAudio()) {\n _this.addClass('vjs-audio');\n }\n\n if (_this.flexNotSupported_()) {\n _this.addClass('vjs-no-flex');\n }\n\n // TODO: Make this smarter. Toggle user state between touching/mousing\n // using events, since devices can have both touch and mouse events.\n // if (browser.TOUCH_ENABLED) {\n // this.addClass('vjs-touch-enabled');\n // }\n\n // iOS Safari has broken hover handling\n if (!IS_IOS) {\n _this.addClass('vjs-workinghover');\n }\n\n // Make player easily findable by ID\n Player.players[_this.id_] = _this;\n\n // Add a major version class to aid css in plugins\n var majorVersion = version.split('.')[0];\n\n _this.addClass('vjs-v' + majorVersion);\n\n // When the player is first initialized, trigger activity so components\n // like the control bar show themselves if needed\n _this.userActive(true);\n _this.reportUserActivity();\n\n _this.one('play', _this.listenForUserActivity_);\n _this.on('fullscreenchange', _this.handleFullscreenChange_);\n _this.on('stageclick', _this.handleStageClick_);\n\n _this.changingSrc_ = false;\n _this.playWaitingForReady_ = false;\n _this.playOnLoadstart_ = null;\n return _this;\n }\n\n /**\n * Destroys the video player and does any necessary cleanup.\n *\n * This is especially helpful if you are dynamically adding and removing videos\n * to/from the DOM.\n *\n * @fires Player#dispose\n */\n\n\n Player.prototype.dispose = function dispose() {\n /**\n * Called when the player is being disposed of.\n *\n * @event Player#dispose\n * @type {EventTarget~Event}\n */\n this.trigger('dispose');\n // prevent dispose from being called twice\n this.off('dispose');\n\n if (this.styleEl_ && this.styleEl_.parentNode) {\n this.styleEl_.parentNode.removeChild(this.styleEl_);\n this.styleEl_ = null;\n }\n\n // Kill reference to this player\n Player.players[this.id_] = null;\n\n if (this.tag && this.tag.player) {\n this.tag.player = null;\n }\n\n if (this.el_ && this.el_.player) {\n this.el_.player = null;\n }\n\n if (this.tech_) {\n this.tech_.dispose();\n this.isPosterFromTech_ = false;\n this.poster_ = '';\n }\n\n if (this.playerElIngest_) {\n this.playerElIngest_ = null;\n }\n\n if (this.tag) {\n this.tag = null;\n }\n\n clearCacheForPlayer(this);\n\n // the actual .el_ is removed here\n _Component.prototype.dispose.call(this);\n };\n\n /**\n * Create the `Player`'s DOM element.\n *\n * @return {Element}\n * The DOM element that gets created.\n */\n\n\n Player.prototype.createEl = function createEl$$1() {\n var tag = this.tag;\n var el = void 0;\n var playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');\n var divEmbed = this.tag.tagName.toLowerCase() === 'video-js';\n\n if (playerElIngest) {\n el = this.el_ = tag.parentNode;\n } else if (!divEmbed) {\n el = this.el_ = _Component.prototype.createEl.call(this, 'div');\n }\n\n // Copy over all the attributes from the tag, including ID and class\n // ID will now reference player box, not the video tag\n var attrs = getAttributes(tag);\n\n if (divEmbed) {\n el = this.el_ = tag;\n tag = this.tag = document.createElement('video');\n while (el.children.length) {\n tag.appendChild(el.firstChild);\n }\n\n if (!hasClass(el, 'video-js')) {\n addClass(el, 'video-js');\n }\n\n el.appendChild(tag);\n\n playerElIngest = this.playerElIngest_ = el;\n\n // copy over properties from the video-js element\n // ie8 doesn't support Object.keys nor hasOwnProperty\n // on dom elements so we have to specify properties individually\n ['autoplay', 'controls', 'crossOrigin', 'defaultMuted', 'defaultPlaybackRate', 'loop', 'muted', 'playbackRate', 'src', 'volume'].forEach(function (prop) {\n if (typeof el[prop] !== 'undefined') {\n tag[prop] = el[prop];\n }\n });\n }\n\n // set tabindex to -1 to remove the video element from the focus order\n tag.setAttribute('tabindex', '-1');\n // Workaround for #4583 (JAWS+IE doesn't announce BPB or play button)\n // See https://github.com/FreedomScientific/VFO-standards-support/issues/78\n // Note that we can't detect if JAWS is being used, but this ARIA attribute\n // doesn't change behavior of IE11 if JAWS is not being used\n if (IE_VERSION) {\n tag.setAttribute('role', 'application');\n }\n\n // Remove width/height attrs from tag so CSS can make it 100% width/height\n tag.removeAttribute('width');\n tag.removeAttribute('height');\n\n Object.getOwnPropertyNames(attrs).forEach(function (attr) {\n // workaround so we don't totally break IE7\n // http://stackoverflow.com/questions/3653444/css-styles-not-applied-on-dynamic-elements-in-internet-explorer-7\n if (attr === 'class') {\n el.className += ' ' + attrs[attr];\n\n if (divEmbed) {\n tag.className += ' ' + attrs[attr];\n }\n } else {\n el.setAttribute(attr, attrs[attr]);\n\n if (divEmbed) {\n tag.setAttribute(attr, attrs[attr]);\n }\n }\n });\n\n // Update tag id/class for use as HTML5 playback tech\n // Might think we should do this after embedding in container so .vjs-tech class\n // doesn't flash 100% width/height, but class only applies with .video-js parent\n tag.playerId = tag.id;\n tag.id += '_html5_api';\n tag.className = 'vjs-tech';\n\n // Make player findable on elements\n tag.player = el.player = this;\n // Default state of video is paused\n this.addClass('vjs-paused');\n\n // Add a style element in the player that we'll use to set the width/height\n // of the player in a way that's still overrideable by CSS, just like the\n // video element\n if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true) {\n this.styleEl_ = createStyleElement('vjs-styles-dimensions');\n var defaultsStyleEl = $('.vjs-styles-defaults');\n var head = $('head');\n\n head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);\n }\n\n // Pass in the width/height/aspectRatio options which will update the style el\n this.width(this.options_.width);\n this.height(this.options_.height);\n this.fluid(this.options_.fluid);\n this.aspectRatio(this.options_.aspectRatio);\n\n // Hide any links within the video/audio tag, because IE doesn't hide them completely.\n var links = tag.getElementsByTagName('a');\n\n for (var i = 0; i < links.length; i++) {\n var linkEl = links.item(i);\n\n addClass(linkEl, 'vjs-hidden');\n linkEl.setAttribute('hidden', 'hidden');\n }\n\n // insertElFirst seems to cause the networkState to flicker from 3 to 2, so\n // keep track of the original for later so we can know if the source originally failed\n tag.initNetworkState_ = tag.networkState;\n\n // Wrap video tag in div (el/box) container\n if (tag.parentNode && !playerElIngest) {\n tag.parentNode.insertBefore(el, tag);\n }\n\n // insert the tag as the first child of the player element\n // then manually add it to the children array so that this.addChild\n // will work properly for other components\n //\n // Breaks iPhone, fixed in HTML5 setup.\n prependTo(tag, el);\n this.children_.unshift(tag);\n\n // Set lang attr on player to ensure CSS :lang() in consistent with player\n // if it's been set to something different to the doc\n this.el_.setAttribute('lang', this.language_);\n\n this.el_ = el;\n\n return el;\n };\n\n /**\n * A getter/setter for the `Player`'s width. Returns the player's configured value.\n * To get the current width use `currentWidth()`.\n *\n * @param {number} [value]\n * The value to set the `Player`'s width to.\n *\n * @return {number}\n * The current width of the `Player` when getting.\n */\n\n\n Player.prototype.width = function width(value) {\n return this.dimension('width', value);\n };\n\n /**\n * A getter/setter for the `Player`'s height. Returns the player's configured value.\n * To get the current height use `currentheight()`.\n *\n * @param {number} [value]\n * The value to set the `Player`'s heigth to.\n *\n * @return {number}\n * The current height of the `Player` when getting.\n */\n\n\n Player.prototype.height = function height(value) {\n return this.dimension('height', value);\n };\n\n /**\n * A getter/setter for the `Player`'s width & height.\n *\n * @param {string} dimension\n * This string can be:\n * - 'width'\n * - 'height'\n *\n * @param {number} [value]\n * Value for dimension specified in the first argument.\n *\n * @return {number}\n * The dimension arguments value when getting (width/height).\n */\n\n\n Player.prototype.dimension = function dimension(_dimension, value) {\n var privDimension = _dimension + '_';\n\n if (value === undefined) {\n return this[privDimension] || 0;\n }\n\n if (value === '') {\n // If an empty string is given, reset the dimension to be automatic\n this[privDimension] = undefined;\n this.updateStyleEl_();\n return;\n }\n\n var parsedVal = parseFloat(value);\n\n if (isNaN(parsedVal)) {\n log$1.error('Improper value \"' + value + '\" supplied for for ' + _dimension);\n return;\n }\n\n this[privDimension] = parsedVal;\n this.updateStyleEl_();\n };\n\n /**\n * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.\n *\n * @param {boolean} [bool]\n * - A value of true adds the class.\n * - A value of false removes the class.\n * - No value will toggle the fluid class.\n *\n * @return {boolean|undefined}\n * - The value of fluid when getting.\n * - `undefined` when setting.\n */\n\n\n Player.prototype.fluid = function fluid(bool) {\n if (bool === undefined) {\n return !!this.fluid_;\n }\n\n this.fluid_ = !!bool;\n\n if (bool) {\n this.addClass('vjs-fluid');\n } else {\n this.removeClass('vjs-fluid');\n }\n\n this.updateStyleEl_();\n };\n\n /**\n * Get/Set the aspect ratio\n *\n * @param {string} [ratio]\n * Aspect ratio for player\n *\n * @return {string|undefined}\n * returns the current aspect ratio when getting\n */\n\n /**\n * A getter/setter for the `Player`'s aspect ratio.\n *\n * @param {string} [ratio]\n * The value to set the `Player's aspect ratio to.\n *\n * @return {string|undefined}\n * - The current aspect ratio of the `Player` when getting.\n * - undefined when setting\n */\n\n\n Player.prototype.aspectRatio = function aspectRatio(ratio) {\n if (ratio === undefined) {\n return this.aspectRatio_;\n }\n\n // Check for width:height format\n if (!/^\\d+\\:\\d+$/.test(ratio)) {\n throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');\n }\n this.aspectRatio_ = ratio;\n\n // We're assuming if you set an aspect ratio you want fluid mode,\n // because in fixed mode you could calculate width and height yourself.\n this.fluid(true);\n\n this.updateStyleEl_();\n };\n\n /**\n * Update styles of the `Player` element (height, width and aspect ratio).\n *\n * @private\n * @listens Tech#loadedmetadata\n */\n\n\n Player.prototype.updateStyleEl_ = function updateStyleEl_() {\n if (window.VIDEOJS_NO_DYNAMIC_STYLE === true) {\n var _width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;\n var _height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;\n var techEl = this.tech_ && this.tech_.el();\n\n if (techEl) {\n if (_width >= 0) {\n techEl.width = _width;\n }\n if (_height >= 0) {\n techEl.height = _height;\n }\n }\n\n return;\n }\n\n var width = void 0;\n var height = void 0;\n var aspectRatio = void 0;\n var idClass = void 0;\n\n // The aspect ratio is either used directly or to calculate width and height.\n if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {\n // Use any aspectRatio that's been specifically set\n aspectRatio = this.aspectRatio_;\n } else if (this.videoWidth() > 0) {\n // Otherwise try to get the aspect ratio from the video metadata\n aspectRatio = this.videoWidth() + ':' + this.videoHeight();\n } else {\n // Or use a default. The video element's is 2:1, but 16:9 is more common.\n aspectRatio = '16:9';\n }\n\n // Get the ratio as a decimal we can use to calculate dimensions\n var ratioParts = aspectRatio.split(':');\n var ratioMultiplier = ratioParts[1] / ratioParts[0];\n\n if (this.width_ !== undefined) {\n // Use any width that's been specifically set\n width = this.width_;\n } else if (this.height_ !== undefined) {\n // Or calulate the width from the aspect ratio if a height has been set\n width = this.height_ / ratioMultiplier;\n } else {\n // Or use the video's metadata, or use the video el's default of 300\n width = this.videoWidth() || 300;\n }\n\n if (this.height_ !== undefined) {\n // Use any height that's been specifically set\n height = this.height_;\n } else {\n // Otherwise calculate the height from the ratio and the width\n height = width * ratioMultiplier;\n }\n\n // Ensure the CSS class is valid by starting with an alpha character\n if (/^[^a-zA-Z]/.test(this.id())) {\n idClass = 'dimensions-' + this.id();\n } else {\n idClass = this.id() + '-dimensions';\n }\n\n // Ensure the right class is still on the player for the style element\n this.addClass(idClass);\n\n setTextContent(this.styleEl_, '\\n .' + idClass + ' {\\n width: ' + width + 'px;\\n height: ' + height + 'px;\\n }\\n\\n .' + idClass + '.vjs-fluid {\\n padding-top: ' + ratioMultiplier * 100 + '%;\\n }\\n ');\n };\n\n /**\n * Load/Create an instance of playback {@link Tech} including element\n * and API methods. Then append the `Tech` element in `Player` as a child.\n *\n * @param {string} techName\n * name of the playback technology\n *\n * @param {string} source\n * video source\n *\n * @private\n */\n\n\n Player.prototype.loadTech_ = function loadTech_(techName, source) {\n var _this2 = this;\n\n // Pause and remove current playback technology\n if (this.tech_) {\n this.unloadTech_();\n }\n\n var titleTechName = toTitleCase(techName);\n var camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1);\n\n // get rid of the HTML5 video tag as soon as we are using another tech\n if (titleTechName !== 'Html5' && this.tag) {\n Tech.getTech('Html5').disposeMediaElement(this.tag);\n this.tag.player = null;\n this.tag = null;\n }\n\n this.techName_ = titleTechName;\n\n // Turn off API access because we're loading a new tech that might load asynchronously\n this.isReady_ = false;\n\n // if autoplay is a string we pass false to the tech\n // because the player is going to handle autoplay on `loadstart`\n var autoplay = typeof this.autoplay() === 'string' ? false : this.autoplay();\n\n // Grab tech-specific options from player options and add source and parent element to use.\n var techOptions = {\n source: source,\n autoplay: autoplay,\n 'nativeControlsForTouch': this.options_.nativeControlsForTouch,\n 'playerId': this.id(),\n 'techId': this.id() + '_' + titleTechName + '_api',\n 'playsinline': this.options_.playsinline,\n 'preload': this.options_.preload,\n 'loop': this.options_.loop,\n 'muted': this.options_.muted,\n 'poster': this.poster(),\n 'language': this.language(),\n 'playerElIngest': this.playerElIngest_ || false,\n 'vtt.js': this.options_['vtt.js'],\n 'canOverridePoster': !!this.options_.techCanOverridePoster,\n 'enableSourceset': this.options_.enableSourceset\n };\n\n ALL.names.forEach(function (name$$1) {\n var props = ALL[name$$1];\n\n techOptions[props.getterName] = _this2[props.privateName];\n });\n\n assign(techOptions, this.options_[titleTechName]);\n assign(techOptions, this.options_[camelTechName]);\n assign(techOptions, this.options_[techName.toLowerCase()]);\n\n if (this.tag) {\n techOptions.tag = this.tag;\n }\n\n if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {\n techOptions.startTime = this.cache_.currentTime;\n }\n\n // Initialize tech instance\n var TechClass = Tech.getTech(techName);\n\n if (!TechClass) {\n throw new Error('No Tech named \\'' + titleTechName + '\\' exists! \\'' + titleTechName + '\\' should be registered using videojs.registerTech()\\'');\n }\n\n this.tech_ = new TechClass(techOptions);\n\n // player.triggerReady is always async, so don't need this to be async\n this.tech_.ready(bind(this, this.handleTechReady_), true);\n\n textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_);\n\n // Listen to all HTML5-defined events and trigger them on the player\n TECH_EVENTS_RETRIGGER.forEach(function (event) {\n _this2.on(_this2.tech_, event, _this2['handleTech' + toTitleCase(event) + '_']);\n });\n\n Object.keys(TECH_EVENTS_QUEUE).forEach(function (event) {\n _this2.on(_this2.tech_, event, function (eventObj) {\n if (_this2.tech_.playbackRate() === 0 && _this2.tech_.seeking()) {\n _this2.queuedCallbacks_.push({\n callback: _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'].bind(_this2),\n event: eventObj\n });\n return;\n }\n _this2['handleTech' + TECH_EVENTS_QUEUE[event] + '_'](eventObj);\n });\n });\n\n this.on(this.tech_, 'loadstart', this.handleTechLoadStart_);\n this.on(this.tech_, 'sourceset', this.handleTechSourceset_);\n this.on(this.tech_, 'waiting', this.handleTechWaiting_);\n this.on(this.tech_, 'ended', this.handleTechEnded_);\n this.on(this.tech_, 'seeking', this.handleTechSeeking_);\n this.on(this.tech_, 'play', this.handleTechPlay_);\n this.on(this.tech_, 'firstplay', this.handleTechFirstPlay_);\n this.on(this.tech_, 'pause', this.handleTechPause_);\n this.on(this.tech_, 'durationchange', this.handleTechDurationChange_);\n this.on(this.tech_, 'fullscreenchange', this.handleTechFullscreenChange_);\n this.on(this.tech_, 'error', this.handleTechError_);\n this.on(this.tech_, 'loadedmetadata', this.updateStyleEl_);\n this.on(this.tech_, 'posterchange', this.handleTechPosterChange_);\n this.on(this.tech_, 'textdata', this.handleTechTextData_);\n this.on(this.tech_, 'ratechange', this.handleTechRateChange_);\n\n this.usingNativeControls(this.techGet_('controls'));\n\n if (this.controls() && !this.usingNativeControls()) {\n this.addTechControlsListeners_();\n }\n\n // Add the tech element in the DOM if it was not already there\n // Make sure to not insert the original video element if using Html5\n if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {\n prependTo(this.tech_.el(), this.el());\n }\n\n // Get rid of the original video tag reference after the first tech is loaded\n if (this.tag) {\n this.tag.player = null;\n this.tag = null;\n }\n };\n\n /**\n * Unload and dispose of the current playback {@link Tech}.\n *\n * @private\n */\n\n\n Player.prototype.unloadTech_ = function unloadTech_() {\n var _this3 = this;\n\n // Save the current text tracks so that we can reuse the same text tracks with the next tech\n ALL.names.forEach(function (name$$1) {\n var props = ALL[name$$1];\n\n _this3[props.privateName] = _this3[props.getterName]();\n });\n this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);\n\n this.isReady_ = false;\n\n this.tech_.dispose();\n\n this.tech_ = false;\n\n if (this.isPosterFromTech_) {\n this.poster_ = '';\n this.trigger('posterchange');\n }\n\n this.isPosterFromTech_ = false;\n };\n\n /**\n * Return a reference to the current {@link Tech}.\n * It will print a warning by default about the danger of using the tech directly\n * but any argument that is passed in will silence the warning.\n *\n * @param {*} [safety]\n * Anything passed in to silence the warning\n *\n * @return {Tech}\n * The Tech\n */\n\n\n Player.prototype.tech = function tech(safety) {\n if (safety === undefined) {\n log$1.warn(tsml(_templateObject$1));\n }\n\n return this.tech_;\n };\n\n /**\n * Set up click and touch listeners for the playback element\n *\n * - On desktops: a click on the video itself will toggle playback\n * - On mobile devices: a click on the video toggles controls\n * which is done by toggling the user state between active and\n * inactive\n * - A tap can signal that a user has become active or has become inactive\n * e.g. a quick tap on an iPhone movie should reveal the controls. Another\n * quick tap should hide them again (signaling the user is in an inactive\n * viewing state)\n * - In addition to this, we still want the user to be considered inactive after\n * a few seconds of inactivity.\n *\n * > Note: the only part of iOS interaction we can't mimic with this setup\n * is a touch and hold on the video element counting as activity in order to\n * keep the controls showing, but that shouldn't be an issue. A touch and hold\n * on any controls will still keep the user active\n *\n * @private\n */\n\n\n Player.prototype.addTechControlsListeners_ = function addTechControlsListeners_() {\n // Make sure to remove all the previous listeners in case we are called multiple times.\n this.removeTechControlsListeners_();\n\n // Some browsers (Chrome & IE) don't trigger a click on a flash swf, but do\n // trigger mousedown/up.\n // http://stackoverflow.com/questions/1444562/javascript-onclick-event-over-flash-object\n // Any touch events are set to block the mousedown event from happening\n this.on(this.tech_, 'mousedown', this.handleTechClick_);\n\n // If the controls were hidden we don't want that to change without a tap event\n // so we'll check if the controls were already showing before reporting user\n // activity\n this.on(this.tech_, 'touchstart', this.handleTechTouchStart_);\n this.on(this.tech_, 'touchmove', this.handleTechTouchMove_);\n this.on(this.tech_, 'touchend', this.handleTechTouchEnd_);\n\n // The tap listener needs to come after the touchend listener because the tap\n // listener cancels out any reportedUserActivity when setting userActive(false)\n this.on(this.tech_, 'tap', this.handleTechTap_);\n };\n\n /**\n * Remove the listeners used for click and tap controls. This is needed for\n * toggling to controls disabled, where a tap/touch should do nothing.\n *\n * @private\n */\n\n\n Player.prototype.removeTechControlsListeners_ = function removeTechControlsListeners_() {\n // We don't want to just use `this.off()` because there might be other needed\n // listeners added by techs that extend this.\n this.off(this.tech_, 'tap', this.handleTechTap_);\n this.off(this.tech_, 'touchstart', this.handleTechTouchStart_);\n this.off(this.tech_, 'touchmove', this.handleTechTouchMove_);\n this.off(this.tech_, 'touchend', this.handleTechTouchEnd_);\n this.off(this.tech_, 'mousedown', this.handleTechClick_);\n };\n\n /**\n * Player waits for the tech to be ready\n *\n * @private\n */\n\n\n Player.prototype.handleTechReady_ = function handleTechReady_() {\n this.triggerReady();\n\n // Keep the same volume as before\n if (this.cache_.volume) {\n this.techCall_('setVolume', this.cache_.volume);\n }\n\n // Look if the tech found a higher resolution poster while loading\n this.handleTechPosterChange_();\n\n // Update the duration if available\n this.handleTechDurationChange_();\n\n // Chrome and Safari both have issues with autoplay.\n // In Safari (5.1.1), when we move the video element into the container div, autoplay doesn't work.\n // In Chrome (15), if you have autoplay + a poster + no controls, the video gets hidden (but audio plays)\n // This fixes both issues. Need to wait for API, so it updates displays correctly\n if ((this.src() || this.currentSrc()) && this.tag && this.options_.autoplay && this.paused()) {\n try {\n // Chrome Fix. Fixed in Chrome v16.\n delete this.tag.poster;\n } catch (e) {\n log$1('deleting tag.poster throws in some browsers', e);\n }\n }\n };\n\n /**\n * Retrigger the `loadstart` event that was triggered by the {@link Tech}. This\n * function will also trigger {@link Player#firstplay} if it is the first loadstart\n * for a video.\n *\n * @fires Player#loadstart\n * @fires Player#firstplay\n * @listens Tech#loadstart\n * @private\n */\n\n\n Player.prototype.handleTechLoadStart_ = function handleTechLoadStart_() {\n // TODO: Update to use `emptied` event instead. See #1277.\n\n this.removeClass('vjs-ended');\n this.removeClass('vjs-seeking');\n\n // reset the error state\n this.error(null);\n\n // If it's already playing we want to trigger a firstplay event now.\n // The firstplay event relies on both the play and loadstart events\n // which can happen in any order for a new source\n if (!this.paused()) {\n /**\n * Fired when the user agent begins looking for media data\n *\n * @event Player#loadstart\n * @type {EventTarget~Event}\n */\n this.trigger('loadstart');\n this.trigger('firstplay');\n } else {\n // reset the hasStarted state\n this.hasStarted(false);\n this.trigger('loadstart');\n }\n\n // autoplay happens after loadstart for the browser,\n // so we mimic that behavior\n this.manualAutoplay_(this.autoplay());\n };\n\n /**\n * Handle autoplay string values, rather than the typical boolean\n * values that should be handled by the tech. Note that this is not\n * part of any specification. Valid values and what they do can be\n * found on the autoplay getter at Player#autoplay()\n */\n\n\n Player.prototype.manualAutoplay_ = function manualAutoplay_(type) {\n var _this4 = this;\n\n if (!this.tech_ || typeof type !== 'string') {\n return;\n }\n\n var muted = function muted() {\n var previouslyMuted = _this4.muted();\n\n _this4.muted(true);\n\n var playPromise = _this4.play();\n\n if (!playPromise || !playPromise.then || !playPromise['catch']) {\n return;\n }\n\n return playPromise['catch'](function (e) {\n // restore old value of muted on failure\n _this4.muted(previouslyMuted);\n });\n };\n\n var promise = void 0;\n\n if (type === 'any') {\n promise = this.play();\n\n if (promise && promise.then && promise['catch']) {\n promise['catch'](function () {\n return muted();\n });\n }\n } else if (type === 'muted') {\n promise = muted();\n } else {\n promise = this.play();\n }\n\n if (!promise || !promise.then || !promise['catch']) {\n return;\n }\n\n return promise.then(function () {\n _this4.trigger({ type: 'autoplay-success', autoplay: type });\n })['catch'](function (e) {\n _this4.trigger({ type: 'autoplay-failure', autoplay: type });\n });\n };\n\n /**\n * Update the internal source caches so that we return the correct source from\n * `src()`, `currentSource()`, and `currentSources()`.\n *\n * > Note: `currentSources` will not be updated if the source that is passed in exists\n * in the current `currentSources` cache.\n *\n *\n * @param {Tech~SourceObject} srcObj\n * A string or object source to update our caches to.\n */\n\n\n Player.prototype.updateSourceCaches_ = function updateSourceCaches_() {\n var srcObj = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';\n\n\n var src = srcObj;\n var type = '';\n\n if (typeof src !== 'string') {\n src = srcObj.src;\n type = srcObj.type;\n }\n\n // if we are a blob url, don't update the source cache\n // blob urls can arise when playback is done via Media Source Extension (MSE)\n // such as m3u8 sources with @videojs/http-streaming (VHS)\n if (/^blob:/.test(src)) {\n return;\n }\n\n // make sure all the caches are set to default values\n // to prevent null checking\n this.cache_.source = this.cache_.source || {};\n this.cache_.sources = this.cache_.sources || [];\n\n // try to get the type of the src that was passed in\n if (src && !type) {\n type = findMimetype(this, src);\n }\n\n // update `currentSource` cache always\n this.cache_.source = mergeOptions({}, srcObj, { src: src, type: type });\n\n var matchingSources = this.cache_.sources.filter(function (s) {\n return s.src && s.src === src;\n });\n var sourceElSources = [];\n var sourceEls = this.$$('source');\n var matchingSourceEls = [];\n\n for (var i = 0; i < sourceEls.length; i++) {\n var sourceObj = getAttributes(sourceEls[i]);\n\n sourceElSources.push(sourceObj);\n\n if (sourceObj.src && sourceObj.src === src) {\n matchingSourceEls.push(sourceObj.src);\n }\n }\n\n // if we have matching source els but not matching sources\n // the current source cache is not up to date\n if (matchingSourceEls.length && !matchingSources.length) {\n this.cache_.sources = sourceElSources;\n // if we don't have matching source or source els set the\n // sources cache to the `currentSource` cache\n } else if (!matchingSources.length) {\n this.cache_.sources = [this.cache_.source];\n }\n\n // update the tech `src` cache\n this.cache_.src = src;\n };\n\n /**\n * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}\n * causing the media element to reload.\n *\n * It will fire for the initial source and each subsequent source.\n * This event is a custom event from Video.js and is triggered by the {@link Tech}.\n *\n * The event object for this event contains a `src` property that will contain the source\n * that was available when the event was triggered. This is generally only necessary if Video.js\n * is switching techs while the source was being changed.\n *\n * It is also fired when `load` is called on the player (or media element)\n * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}\n * says that the resource selection algorithm needs to be aborted and restarted.\n * In this case, it is very likely that the `src` property will be set to the\n * empty string `\"\"` to indicate we do not know what the source will be but\n * that it is changing.\n *\n * *This event is currently still experimental and may change in minor releases.*\n * __To use this, pass `enableSourceset` option to the player.__\n *\n * @event Player#sourceset\n * @type {EventTarget~Event}\n * @prop {string} src\n * The source url available when the `sourceset` was triggered.\n * It will be an empty string if we cannot know what the source is\n * but know that the source will change.\n */\n /**\n * Retrigger the `sourceset` event that was triggered by the {@link Tech}.\n *\n * @fires Player#sourceset\n * @listens Tech#sourceset\n * @private\n */\n\n\n Player.prototype.handleTechSourceset_ = function handleTechSourceset_(event) {\n var _this5 = this;\n\n // only update the source cache when the source\n // was not updated using the player api\n if (!this.changingSrc_) {\n // update the source to the intial source right away\n // in some cases this will be empty string\n this.updateSourceCaches_(event.src);\n\n // if the `sourceset` `src` was an empty string\n // wait for a `loadstart` to update the cache to `currentSrc`.\n // If a sourceset happens before a `loadstart`, we reset the state\n // as this function will be called again.\n if (!event.src) {\n var updateCache = function updateCache(e) {\n if (e.type !== 'sourceset') {\n _this5.updateSourceCaches_(_this5.techGet_('currentSrc'));\n }\n\n _this5.tech_.off(['sourceset', 'loadstart'], updateCache);\n };\n\n this.tech_.one(['sourceset', 'loadstart'], updateCache);\n }\n }\n\n this.trigger({\n src: event.src,\n type: 'sourceset'\n });\n };\n\n /**\n * Add/remove the vjs-has-started class\n *\n * @fires Player#firstplay\n *\n * @param {boolean} request\n * - true: adds the class\n * - false: remove the class\n *\n * @return {boolean}\n * the boolean value of hasStarted_\n */\n\n\n Player.prototype.hasStarted = function hasStarted(request) {\n if (request === undefined) {\n // act as getter, if we have no request to change\n return this.hasStarted_;\n }\n\n if (request === this.hasStarted_) {\n return;\n }\n\n this.hasStarted_ = request;\n\n if (this.hasStarted_) {\n this.addClass('vjs-has-started');\n this.trigger('firstplay');\n } else {\n this.removeClass('vjs-has-started');\n }\n };\n\n /**\n * Fired whenever the media begins or resumes playback\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}\n * @fires Player#play\n * @listens Tech#play\n * @private\n */\n\n\n Player.prototype.handleTechPlay_ = function handleTechPlay_() {\n this.removeClass('vjs-ended');\n this.removeClass('vjs-paused');\n this.addClass('vjs-playing');\n\n // hide the poster when the user hits play\n this.hasStarted(true);\n /**\n * Triggered whenever an {@link Tech#play} event happens. Indicates that\n * playback has started or resumed.\n *\n * @event Player#play\n * @type {EventTarget~Event}\n */\n this.trigger('play');\n };\n\n /**\n * Retrigger the `ratechange` event that was triggered by the {@link Tech}.\n *\n * If there were any events queued while the playback rate was zero, fire\n * those events now.\n *\n * @private\n * @method Player#handleTechRateChange_\n * @fires Player#ratechange\n * @listens Tech#ratechange\n */\n\n\n Player.prototype.handleTechRateChange_ = function handleTechRateChange_() {\n if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {\n this.queuedCallbacks_.forEach(function (queued) {\n return queued.callback(queued.event);\n });\n this.queuedCallbacks_ = [];\n }\n this.cache_.lastPlaybackRate = this.tech_.playbackRate();\n /**\n * Fires when the playing speed of the audio/video is changed\n *\n * @event Player#ratechange\n * @type {event}\n */\n this.trigger('ratechange');\n };\n\n /**\n * Retrigger the `waiting` event that was triggered by the {@link Tech}.\n *\n * @fires Player#waiting\n * @listens Tech#waiting\n * @private\n */\n\n\n Player.prototype.handleTechWaiting_ = function handleTechWaiting_() {\n var _this6 = this;\n\n this.addClass('vjs-waiting');\n /**\n * A readyState change on the DOM element has caused playback to stop.\n *\n * @event Player#waiting\n * @type {EventTarget~Event}\n */\n this.trigger('waiting');\n this.one('timeupdate', function () {\n return _this6.removeClass('vjs-waiting');\n });\n };\n\n /**\n * Retrigger the `canplay` event that was triggered by the {@link Tech}.\n * > Note: This is not consistent between browsers. See #1351\n *\n * @fires Player#canplay\n * @listens Tech#canplay\n * @private\n */\n\n\n Player.prototype.handleTechCanPlay_ = function handleTechCanPlay_() {\n this.removeClass('vjs-waiting');\n /**\n * The media has a readyState of HAVE_FUTURE_DATA or greater.\n *\n * @event Player#canplay\n * @type {EventTarget~Event}\n */\n this.trigger('canplay');\n };\n\n /**\n * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.\n *\n * @fires Player#canplaythrough\n * @listens Tech#canplaythrough\n * @private\n */\n\n\n Player.prototype.handleTechCanPlayThrough_ = function handleTechCanPlayThrough_() {\n this.removeClass('vjs-waiting');\n /**\n * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the\n * entire media file can be played without buffering.\n *\n * @event Player#canplaythrough\n * @type {EventTarget~Event}\n */\n this.trigger('canplaythrough');\n };\n\n /**\n * Retrigger the `playing` event that was triggered by the {@link Tech}.\n *\n * @fires Player#playing\n * @listens Tech#playing\n * @private\n */\n\n\n Player.prototype.handleTechPlaying_ = function handleTechPlaying_() {\n this.removeClass('vjs-waiting');\n /**\n * The media is no longer blocked from playback, and has started playing.\n *\n * @event Player#playing\n * @type {EventTarget~Event}\n */\n this.trigger('playing');\n };\n\n /**\n * Retrigger the `seeking` event that was triggered by the {@link Tech}.\n *\n * @fires Player#seeking\n * @listens Tech#seeking\n * @private\n */\n\n\n Player.prototype.handleTechSeeking_ = function handleTechSeeking_() {\n this.addClass('vjs-seeking');\n /**\n * Fired whenever the player is jumping to a new time\n *\n * @event Player#seeking\n * @type {EventTarget~Event}\n */\n this.trigger('seeking');\n };\n\n /**\n * Retrigger the `seeked` event that was triggered by the {@link Tech}.\n *\n * @fires Player#seeked\n * @listens Tech#seeked\n * @private\n */\n\n\n Player.prototype.handleTechSeeked_ = function handleTechSeeked_() {\n this.removeClass('vjs-seeking');\n /**\n * Fired when the player has finished jumping to a new time\n *\n * @event Player#seeked\n * @type {EventTarget~Event}\n */\n this.trigger('seeked');\n };\n\n /**\n * Retrigger the `firstplay` event that was triggered by the {@link Tech}.\n *\n * @fires Player#firstplay\n * @listens Tech#firstplay\n * @deprecated As of 6.0 firstplay event is deprecated.\n * As of 6.0 passing the `starttime` option to the player and the firstplay event are deprecated.\n * @private\n */\n\n\n Player.prototype.handleTechFirstPlay_ = function handleTechFirstPlay_() {\n // If the first starttime attribute is specified\n // then we will start at the given offset in seconds\n if (this.options_.starttime) {\n log$1.warn('Passing the `starttime` option to the player will be deprecated in 6.0');\n this.currentTime(this.options_.starttime);\n }\n\n this.addClass('vjs-has-started');\n /**\n * Fired the first time a video is played. Not part of the HLS spec, and this is\n * probably not the best implementation yet, so use sparingly. If you don't have a\n * reason to prevent playback, use `myPlayer.one('play');` instead.\n *\n * @event Player#firstplay\n * @deprecated As of 6.0 firstplay event is deprecated.\n * @type {EventTarget~Event}\n */\n this.trigger('firstplay');\n };\n\n /**\n * Retrigger the `pause` event that was triggered by the {@link Tech}.\n *\n * @fires Player#pause\n * @listens Tech#pause\n * @private\n */\n\n\n Player.prototype.handleTechPause_ = function handleTechPause_() {\n this.removeClass('vjs-playing');\n this.addClass('vjs-paused');\n /**\n * Fired whenever the media has been paused\n *\n * @event Player#pause\n * @type {EventTarget~Event}\n */\n this.trigger('pause');\n };\n\n /**\n * Retrigger the `ended` event that was triggered by the {@link Tech}.\n *\n * @fires Player#ended\n * @listens Tech#ended\n * @private\n */\n\n\n Player.prototype.handleTechEnded_ = function handleTechEnded_() {\n this.addClass('vjs-ended');\n if (this.options_.loop) {\n this.currentTime(0);\n this.play();\n } else if (!this.paused()) {\n this.pause();\n }\n\n /**\n * Fired when the end of the media resource is reached (currentTime == duration)\n *\n * @event Player#ended\n * @type {EventTarget~Event}\n */\n this.trigger('ended');\n };\n\n /**\n * Fired when the duration of the media resource is first known or changed\n *\n * @listens Tech#durationchange\n * @private\n */\n\n\n Player.prototype.handleTechDurationChange_ = function handleTechDurationChange_() {\n this.duration(this.techGet_('duration'));\n };\n\n /**\n * Handle a click on the media element to play/pause\n *\n * @param {EventTarget~Event} event\n * the event that caused this function to trigger\n *\n * @listens Tech#mousedown\n * @private\n */\n\n\n Player.prototype.handleTechClick_ = function handleTechClick_(event) {\n if (!isSingleLeftClick(event)) {\n return;\n }\n\n // When controls are disabled a click should not toggle playback because\n // the click is considered a control\n if (!this.controls_) {\n return;\n }\n\n if (this.paused()) {\n silencePromise(this.play());\n } else {\n this.pause();\n }\n };\n\n /**\n * Handle a tap on the media element. It will toggle the user\n * activity state, which hides and shows the controls.\n *\n * @listens Tech#tap\n * @private\n */\n\n\n Player.prototype.handleTechTap_ = function handleTechTap_() {\n this.userActive(!this.userActive());\n };\n\n /**\n * Handle touch to start\n *\n * @listens Tech#touchstart\n * @private\n */\n\n\n Player.prototype.handleTechTouchStart_ = function handleTechTouchStart_() {\n this.userWasActive = this.userActive();\n };\n\n /**\n * Handle touch to move\n *\n * @listens Tech#touchmove\n * @private\n */\n\n\n Player.prototype.handleTechTouchMove_ = function handleTechTouchMove_() {\n if (this.userWasActive) {\n this.reportUserActivity();\n }\n };\n\n /**\n * Handle touch to end\n *\n * @param {EventTarget~Event} event\n * the touchend event that triggered\n * this function\n *\n * @listens Tech#touchend\n * @private\n */\n\n\n Player.prototype.handleTechTouchEnd_ = function handleTechTouchEnd_(event) {\n // Stop the mouse events from also happening\n event.preventDefault();\n };\n\n /**\n * Fired when the player switches in or out of fullscreen mode\n *\n * @private\n * @listens Player#fullscreenchange\n */\n\n\n Player.prototype.handleFullscreenChange_ = function handleFullscreenChange_() {\n if (this.isFullscreen()) {\n this.addClass('vjs-fullscreen');\n } else {\n this.removeClass('vjs-fullscreen');\n }\n };\n\n /**\n * native click events on the SWF aren't triggered on IE11, Win8.1RT\n * use stageclick events triggered from inside the SWF instead\n *\n * @private\n * @listens stageclick\n */\n\n\n Player.prototype.handleStageClick_ = function handleStageClick_() {\n this.reportUserActivity();\n };\n\n /**\n * Handle Tech Fullscreen Change\n *\n * @param {EventTarget~Event} event\n * the fullscreenchange event that triggered this function\n *\n * @param {Object} data\n * the data that was sent with the event\n *\n * @private\n * @listens Tech#fullscreenchange\n * @fires Player#fullscreenchange\n */\n\n\n Player.prototype.handleTechFullscreenChange_ = function handleTechFullscreenChange_(event, data) {\n if (data) {\n this.isFullscreen(data.isFullscreen);\n }\n /**\n * Fired when going in and out of fullscreen.\n *\n * @event Player#fullscreenchange\n * @type {EventTarget~Event}\n */\n this.trigger('fullscreenchange');\n };\n\n /**\n * Fires when an error occurred during the loading of an audio/video.\n *\n * @private\n * @listens Tech#error\n */\n\n\n Player.prototype.handleTechError_ = function handleTechError_() {\n var error = this.tech_.error();\n\n this.error(error);\n };\n\n /**\n * Retrigger the `textdata` event that was triggered by the {@link Tech}.\n *\n * @fires Player#textdata\n * @listens Tech#textdata\n * @private\n */\n\n\n Player.prototype.handleTechTextData_ = function handleTechTextData_() {\n var data = null;\n\n if (arguments.length > 1) {\n data = arguments[1];\n }\n\n /**\n * Fires when we get a textdata event from tech\n *\n * @event Player#textdata\n * @type {EventTarget~Event}\n */\n this.trigger('textdata', data);\n };\n\n /**\n * Get object for cached values.\n *\n * @return {Object}\n * get the current object cache\n */\n\n\n Player.prototype.getCache = function getCache() {\n return this.cache_;\n };\n\n /**\n * Pass values to the playback tech\n *\n * @param {string} [method]\n * the method to call\n *\n * @param {Object} arg\n * the argument to pass\n *\n * @private\n */\n\n\n Player.prototype.techCall_ = function techCall_(method, arg) {\n // If it's not ready yet, call method when it is\n\n this.ready(function () {\n if (method in allowedSetters) {\n return set$1(this.middleware_, this.tech_, method, arg);\n } else if (method in allowedMediators) {\n return mediate(this.middleware_, this.tech_, method, arg);\n }\n\n try {\n if (this.tech_) {\n this.tech_[method](arg);\n }\n } catch (e) {\n log$1(e);\n throw e;\n }\n }, true);\n };\n\n /**\n * Get calls can't wait for the tech, and sometimes don't need to.\n *\n * @param {string} method\n * Tech method\n *\n * @return {Function|undefined}\n * the method or undefined\n *\n * @private\n */\n\n\n Player.prototype.techGet_ = function techGet_(method) {\n if (!this.tech_ || !this.tech_.isReady_) {\n return;\n }\n\n if (method in allowedGetters) {\n return get$1(this.middleware_, this.tech_, method);\n } else if (method in allowedMediators) {\n return mediate(this.middleware_, this.tech_, method);\n }\n\n // Flash likes to die and reload when you hide or reposition it.\n // In these cases the object methods go away and we get errors.\n // When that happens we'll catch the errors and inform tech that it's not ready any more.\n try {\n return this.tech_[method]();\n } catch (e) {\n\n // When building additional tech libs, an expected method may not be defined yet\n if (this.tech_[method] === undefined) {\n log$1('Video.js: ' + method + ' method not defined for ' + this.techName_ + ' playback technology.', e);\n throw e;\n }\n\n // When a method isn't available on the object it throws a TypeError\n if (e.name === 'TypeError') {\n log$1('Video.js: ' + method + ' unavailable on ' + this.techName_ + ' playback technology element.', e);\n this.tech_.isReady_ = false;\n throw e;\n }\n\n // If error unknown, just log and throw\n log$1(e);\n throw e;\n }\n };\n\n /**\n * Attempt to begin playback at the first opportunity.\n *\n * @return {Promise|undefined}\n * Returns a promise if the browser supports Promises (or one\n * was passed in as an option). This promise will be resolved on\n * the return value of play. If this is undefined it will fulfill the\n * promise chain otherwise the promise chain will be fulfilled when\n * the promise from play is fulfilled.\n */\n\n\n Player.prototype.play = function play() {\n var _this7 = this;\n\n var PromiseClass = this.options_.Promise || window.Promise;\n\n if (PromiseClass) {\n return new PromiseClass(function (resolve) {\n _this7.play_(resolve);\n });\n }\n\n return this.play_();\n };\n\n /**\n * The actual logic for play, takes a callback that will be resolved on the\n * return value of play. This allows us to resolve to the play promise if there\n * is one on modern browsers.\n *\n * @private\n * @param {Function} [callback]\n * The callback that should be called when the techs play is actually called\n */\n\n\n Player.prototype.play_ = function play_() {\n var _this8 = this;\n\n var callback = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : silencePromise;\n\n // If this is called while we have a play queued up on a loadstart, remove\n // that listener to avoid getting in a potentially bad state.\n if (this.playOnLoadstart_) {\n this.off('loadstart', this.playOnLoadstart_);\n }\n\n // If the player/tech is not ready, queue up another call to `play()` for\n // when it is. This will loop back into this method for another attempt at\n // playback when the tech is ready.\n if (!this.isReady_) {\n\n // Bail out if we're already waiting for `ready`!\n if (this.playWaitingForReady_) {\n return;\n }\n\n this.playWaitingForReady_ = true;\n this.ready(function () {\n _this8.playWaitingForReady_ = false;\n callback(_this8.play());\n });\n\n // If the player/tech is ready and we have a source, we can attempt playback.\n } else if (!this.changingSrc_ && (this.src() || this.currentSrc())) {\n callback(this.techGet_('play'));\n return;\n\n // If the tech is ready, but we do not have a source, we'll need to wait\n // for both the `ready` and a `loadstart` when the source is finally\n // resolved by middleware and set on the player.\n //\n // This can happen if `play()` is called while changing sources or before\n // one has been set on the player.\n } else {\n\n this.playOnLoadstart_ = function () {\n _this8.playOnLoadstart_ = null;\n callback(_this8.play());\n };\n\n this.one('loadstart', this.playOnLoadstart_);\n }\n };\n\n /**\n * Pause the video playback\n *\n * @return {Player}\n * A reference to the player object this function was called on\n */\n\n\n Player.prototype.pause = function pause() {\n this.techCall_('pause');\n };\n\n /**\n * Check if the player is paused or has yet to play\n *\n * @return {boolean}\n * - false: if the media is currently playing\n * - true: if media is not currently playing\n */\n\n\n Player.prototype.paused = function paused() {\n // The initial state of paused should be true (in Safari it's actually false)\n return this.techGet_('paused') === false ? false : true;\n };\n\n /**\n * Get a TimeRange object representing the current ranges of time that the user\n * has played.\n *\n * @return {TimeRange}\n * A time range object that represents all the increments of time that have\n * been played.\n */\n\n\n Player.prototype.played = function played() {\n return this.techGet_('played') || createTimeRanges(0, 0);\n };\n\n /**\n * Returns whether or not the user is \"scrubbing\". Scrubbing is\n * when the user has clicked the progress bar handle and is\n * dragging it along the progress bar.\n *\n * @param {boolean} [isScrubbing]\n * wether the user is or is not scrubbing\n *\n * @return {boolean}\n * The value of scrubbing when getting\n */\n\n\n Player.prototype.scrubbing = function scrubbing(isScrubbing) {\n if (typeof isScrubbing === 'undefined') {\n return this.scrubbing_;\n }\n this.scrubbing_ = !!isScrubbing;\n\n if (isScrubbing) {\n this.addClass('vjs-scrubbing');\n } else {\n this.removeClass('vjs-scrubbing');\n }\n };\n\n /**\n * Get or set the current time (in seconds)\n *\n * @param {number|string} [seconds]\n * The time to seek to in seconds\n *\n * @return {number}\n * - the current time in seconds when getting\n */\n\n\n Player.prototype.currentTime = function currentTime(seconds) {\n if (typeof seconds !== 'undefined') {\n if (seconds < 0) {\n seconds = 0;\n }\n this.techCall_('setCurrentTime', seconds);\n return;\n }\n\n // cache last currentTime and return. default to 0 seconds\n //\n // Caching the currentTime is meant to prevent a massive amount of reads on the tech's\n // currentTime when scrubbing, but may not provide much performance benefit afterall.\n // Should be tested. Also something has to read the actual current time or the cache will\n // never get updated.\n this.cache_.currentTime = this.techGet_('currentTime') || 0;\n return this.cache_.currentTime;\n };\n\n /**\n * Normally gets the length in time of the video in seconds;\n * in all but the rarest use cases an argument will NOT be passed to the method\n *\n * > **NOTE**: The video must have started loading before the duration can be\n * known, and in the case of Flash, may not be known until the video starts\n * playing.\n *\n * @fires Player#durationchange\n *\n * @param {number} [seconds]\n * The duration of the video to set in seconds\n *\n * @return {number}\n * - The duration of the video in seconds when getting\n */\n\n\n Player.prototype.duration = function duration(seconds) {\n if (seconds === undefined) {\n // return NaN if the duration is not known\n return this.cache_.duration !== undefined ? this.cache_.duration : NaN;\n }\n\n seconds = parseFloat(seconds);\n\n // Standardize on Inifity for signaling video is live\n if (seconds < 0) {\n seconds = Infinity;\n }\n\n if (seconds !== this.cache_.duration) {\n // Cache the last set value for optimized scrubbing (esp. Flash)\n this.cache_.duration = seconds;\n\n if (seconds === Infinity) {\n this.addClass('vjs-live');\n } else {\n this.removeClass('vjs-live');\n }\n /**\n * @event Player#durationchange\n * @type {EventTarget~Event}\n */\n this.trigger('durationchange');\n }\n };\n\n /**\n * Calculates how much time is left in the video. Not part\n * of the native video API.\n *\n * @return {number}\n * The time remaining in seconds\n */\n\n\n Player.prototype.remainingTime = function remainingTime() {\n return this.duration() - this.currentTime();\n };\n\n /**\n * A remaining time function that is intented to be used when\n * the time is to be displayed directly to the user.\n *\n * @return {number}\n * The rounded time remaining in seconds\n */\n\n\n Player.prototype.remainingTimeDisplay = function remainingTimeDisplay() {\n return Math.floor(this.duration()) - Math.floor(this.currentTime());\n };\n\n //\n // Kind of like an array of portions of the video that have been downloaded.\n\n /**\n * Get a TimeRange object with an array of the times of the video\n * that have been downloaded. If you just want the percent of the\n * video that's been downloaded, use bufferedPercent.\n *\n * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}\n *\n * @return {TimeRange}\n * A mock TimeRange object (following HTML spec)\n */\n\n\n Player.prototype.buffered = function buffered() {\n var buffered = this.techGet_('buffered');\n\n if (!buffered || !buffered.length) {\n buffered = createTimeRanges(0, 0);\n }\n\n return buffered;\n };\n\n /**\n * Get the percent (as a decimal) of the video that's been downloaded.\n * This method is not a part of the native HTML video API.\n *\n * @return {number}\n * A decimal between 0 and 1 representing the percent\n * that is bufferred 0 being 0% and 1 being 100%\n */\n\n\n Player.prototype.bufferedPercent = function bufferedPercent$$1() {\n return bufferedPercent(this.buffered(), this.duration());\n };\n\n /**\n * Get the ending time of the last buffered time range\n * This is used in the progress bar to encapsulate all time ranges.\n *\n * @return {number}\n * The end of the last buffered time range\n */\n\n\n Player.prototype.bufferedEnd = function bufferedEnd() {\n var buffered = this.buffered();\n var duration = this.duration();\n var end = buffered.end(buffered.length - 1);\n\n if (end > duration) {\n end = duration;\n }\n\n return end;\n };\n\n /**\n * Get or set the current volume of the media\n *\n * @param {number} [percentAsDecimal]\n * The new volume as a decimal percent:\n * - 0 is muted/0%/off\n * - 1.0 is 100%/full\n * - 0.5 is half volume or 50%\n *\n * @return {number}\n * The current volume as a percent when getting\n */\n\n\n Player.prototype.volume = function volume(percentAsDecimal) {\n var vol = void 0;\n\n if (percentAsDecimal !== undefined) {\n // Force value to between 0 and 1\n vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal)));\n this.cache_.volume = vol;\n this.techCall_('setVolume', vol);\n\n if (vol > 0) {\n this.lastVolume_(vol);\n }\n\n return;\n }\n\n // Default to 1 when returning current volume.\n vol = parseFloat(this.techGet_('volume'));\n return isNaN(vol) ? 1 : vol;\n };\n\n /**\n * Get the current muted state, or turn mute on or off\n *\n * @param {boolean} [muted]\n * - true to mute\n * - false to unmute\n *\n * @return {boolean}\n * - true if mute is on and getting\n * - false if mute is off and getting\n */\n\n\n Player.prototype.muted = function muted(_muted) {\n if (_muted !== undefined) {\n this.techCall_('setMuted', _muted);\n return;\n }\n return this.techGet_('muted') || false;\n };\n\n /**\n * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted\n * indicates the state of muted on intial playback.\n *\n * ```js\n * var myPlayer = videojs('some-player-id');\n *\n * myPlayer.src(\"http://www.example.com/path/to/video.mp4\");\n *\n * // get, should be false\n * console.log(myPlayer.defaultMuted());\n * // set to true\n * myPlayer.defaultMuted(true);\n * // get should be true\n * console.log(myPlayer.defaultMuted());\n * ```\n *\n * @param {boolean} [defaultMuted]\n * - true to mute\n * - false to unmute\n *\n * @return {boolean|Player}\n * - true if defaultMuted is on and getting\n * - false if defaultMuted is off and getting\n * - A reference to the current player when setting\n */\n\n\n Player.prototype.defaultMuted = function defaultMuted(_defaultMuted) {\n if (_defaultMuted !== undefined) {\n return this.techCall_('setDefaultMuted', _defaultMuted);\n }\n return this.techGet_('defaultMuted') || false;\n };\n\n /**\n * Get the last volume, or set it\n *\n * @param {number} [percentAsDecimal]\n * The new last volume as a decimal percent:\n * - 0 is muted/0%/off\n * - 1.0 is 100%/full\n * - 0.5 is half volume or 50%\n *\n * @return {number}\n * the current value of lastVolume as a percent when getting\n *\n * @private\n */\n\n\n Player.prototype.lastVolume_ = function lastVolume_(percentAsDecimal) {\n if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {\n this.cache_.lastVolume = percentAsDecimal;\n return;\n }\n return this.cache_.lastVolume;\n };\n\n /**\n * Check if current tech can support native fullscreen\n * (e.g. with built in controls like iOS, so not our flash swf)\n *\n * @return {boolean}\n * if native fullscreen is supported\n */\n\n\n Player.prototype.supportsFullScreen = function supportsFullScreen() {\n return this.techGet_('supportsFullScreen') || false;\n };\n\n /**\n * Check if the player is in fullscreen mode or tell the player that it\n * is or is not in fullscreen mode.\n *\n * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official\n * property and instead document.fullscreenElement is used. But isFullscreen is\n * still a valuable property for internal player workings.\n *\n * @param {boolean} [isFS]\n * Set the players current fullscreen state\n *\n * @return {boolean}\n * - true if fullscreen is on and getting\n * - false if fullscreen is off and getting\n */\n\n\n Player.prototype.isFullscreen = function isFullscreen(isFS) {\n if (isFS !== undefined) {\n this.isFullscreen_ = !!isFS;\n return;\n }\n return !!this.isFullscreen_;\n };\n\n /**\n * Increase the size of the video to full screen\n * In some browsers, full screen is not supported natively, so it enters\n * \"full window mode\", where the video fills the browser window.\n * In browsers and devices that support native full screen, sometimes the\n * browser's default controls will be shown, and not the Video.js custom skin.\n * This includes most mobile devices (iOS, Android) and older versions of\n * Safari.\n *\n * @fires Player#fullscreenchange\n */\n\n\n Player.prototype.requestFullscreen = function requestFullscreen() {\n var fsApi = FullscreenApi;\n\n this.isFullscreen(true);\n\n if (fsApi.requestFullscreen) {\n // the browser supports going fullscreen at the element level so we can\n // take the controls fullscreen as well as the video\n\n // Trigger fullscreenchange event after change\n // We have to specifically add this each time, and remove\n // when canceling fullscreen. Otherwise if there's multiple\n // players on a page, they would all be reacting to the same fullscreen\n // events\n on(document, fsApi.fullscreenchange, bind(this, function documentFullscreenChange(e) {\n this.isFullscreen(document[fsApi.fullscreenElement]);\n\n // If cancelling fullscreen, remove event listener.\n if (this.isFullscreen() === false) {\n off(document, fsApi.fullscreenchange, documentFullscreenChange);\n }\n /**\n * @event Player#fullscreenchange\n * @type {EventTarget~Event}\n */\n this.trigger('fullscreenchange');\n }));\n\n this.el_[fsApi.requestFullscreen]();\n } else if (this.tech_.supportsFullScreen()) {\n // we can't take the video.js controls fullscreen but we can go fullscreen\n // with native controls\n this.techCall_('enterFullScreen');\n } else {\n // fullscreen isn't supported so we'll just stretch the video element to\n // fill the viewport\n this.enterFullWindow();\n /**\n * @event Player#fullscreenchange\n * @type {EventTarget~Event}\n */\n this.trigger('fullscreenchange');\n }\n };\n\n /**\n * Return the video to its normal size after having been in full screen mode\n *\n * @fires Player#fullscreenchange\n */\n\n\n Player.prototype.exitFullscreen = function exitFullscreen() {\n var fsApi = FullscreenApi;\n\n this.isFullscreen(false);\n\n // Check for browser element fullscreen support\n if (fsApi.requestFullscreen) {\n document[fsApi.exitFullscreen]();\n } else if (this.tech_.supportsFullScreen()) {\n this.techCall_('exitFullScreen');\n } else {\n this.exitFullWindow();\n /**\n * @event Player#fullscreenchange\n * @type {EventTarget~Event}\n */\n this.trigger('fullscreenchange');\n }\n };\n\n /**\n * When fullscreen isn't supported we can stretch the\n * video container to as wide as the browser will let us.\n *\n * @fires Player#enterFullWindow\n */\n\n\n Player.prototype.enterFullWindow = function enterFullWindow() {\n this.isFullWindow = true;\n\n // Storing original doc overflow value to return to when fullscreen is off\n this.docOrigOverflow = document.documentElement.style.overflow;\n\n // Add listener for esc key to exit fullscreen\n on(document, 'keydown', bind(this, this.fullWindowOnEscKey));\n\n // Hide any scroll bars\n document.documentElement.style.overflow = 'hidden';\n\n // Apply fullscreen styles\n addClass(document.body, 'vjs-full-window');\n\n /**\n * @event Player#enterFullWindow\n * @type {EventTarget~Event}\n */\n this.trigger('enterFullWindow');\n };\n\n /**\n * Check for call to either exit full window or\n * full screen on ESC key\n *\n * @param {string} event\n * Event to check for key press\n */\n\n\n Player.prototype.fullWindowOnEscKey = function fullWindowOnEscKey(event) {\n if (event.keyCode === 27) {\n if (this.isFullscreen() === true) {\n this.exitFullscreen();\n } else {\n this.exitFullWindow();\n }\n }\n };\n\n /**\n * Exit full window\n *\n * @fires Player#exitFullWindow\n */\n\n\n Player.prototype.exitFullWindow = function exitFullWindow() {\n this.isFullWindow = false;\n off(document, 'keydown', this.fullWindowOnEscKey);\n\n // Unhide scroll bars.\n document.documentElement.style.overflow = this.docOrigOverflow;\n\n // Remove fullscreen styles\n removeClass(document.body, 'vjs-full-window');\n\n // Resize the box, controller, and poster to original sizes\n // this.positionAll();\n /**\n * @event Player#exitFullWindow\n * @type {EventTarget~Event}\n */\n this.trigger('exitFullWindow');\n };\n\n /**\n * Check whether the player can play a given mimetype\n *\n * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype\n *\n * @param {string} type\n * The mimetype to check\n *\n * @return {string}\n * 'probably', 'maybe', or '' (empty string)\n */\n\n\n Player.prototype.canPlayType = function canPlayType(type) {\n var can = void 0;\n\n // Loop through each playback technology in the options order\n for (var i = 0, j = this.options_.techOrder; i < j.length; i++) {\n var techName = j[i];\n var tech = Tech.getTech(techName);\n\n // Support old behavior of techs being registered as components.\n // Remove once that deprecated behavior is removed.\n if (!tech) {\n tech = Component.getComponent(techName);\n }\n\n // Check if the current tech is defined before continuing\n if (!tech) {\n log$1.error('The \"' + techName + '\" tech is undefined. Skipped browser support check for that tech.');\n continue;\n }\n\n // Check if the browser supports this technology\n if (tech.isSupported()) {\n can = tech.canPlayType(type);\n\n if (can) {\n return can;\n }\n }\n }\n\n return '';\n };\n\n /**\n * Select source based on tech-order or source-order\n * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,\n * defaults to tech-order selection\n *\n * @param {Array} sources\n * The sources for a media asset\n *\n * @return {Object|boolean}\n * Object of source and tech order or false\n */\n\n\n Player.prototype.selectSource = function selectSource(sources) {\n var _this9 = this;\n\n // Get only the techs specified in `techOrder` that exist and are supported by the\n // current platform\n var techs = this.options_.techOrder.map(function (techName) {\n return [techName, Tech.getTech(techName)];\n }).filter(function (_ref) {\n var techName = _ref[0],\n tech = _ref[1];\n\n // Check if the current tech is defined before continuing\n if (tech) {\n // Check if the browser supports this technology\n return tech.isSupported();\n }\n\n log$1.error('The \"' + techName + '\" tech is undefined. Skipped browser support check for that tech.');\n return false;\n });\n\n // Iterate over each `innerArray` element once per `outerArray` element and execute\n // `tester` with both. If `tester` returns a non-falsy value, exit early and return\n // that value.\n var findFirstPassingTechSourcePair = function findFirstPassingTechSourcePair(outerArray, innerArray, tester) {\n var found = void 0;\n\n outerArray.some(function (outerChoice) {\n return innerArray.some(function (innerChoice) {\n found = tester(outerChoice, innerChoice);\n\n if (found) {\n return true;\n }\n });\n });\n\n return found;\n };\n\n var foundSourceAndTech = void 0;\n var flip = function flip(fn) {\n return function (a, b) {\n return fn(b, a);\n };\n };\n var finder = function finder(_ref2, source) {\n var techName = _ref2[0],\n tech = _ref2[1];\n\n if (tech.canPlaySource(source, _this9.options_[techName.toLowerCase()])) {\n return { source: source, tech: techName };\n }\n };\n\n // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources\n // to select from them based on their priority.\n if (this.options_.sourceOrder) {\n // Source-first ordering\n foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));\n } else {\n // Tech-first ordering\n foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);\n }\n\n return foundSourceAndTech || false;\n };\n\n /**\n * Get or set the video source.\n *\n * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]\n * A SourceObject, an array of SourceObjects, or a string referencing\n * a URL to a media source. It is _highly recommended_ that an object\n * or array of objects is used here, so that source selection\n * algorithms can take the `type` into account.\n *\n * If not provided, this method acts as a getter.\n *\n * @return {string|undefined}\n * If the `source` argument is missing, returns the current source\n * URL. Otherwise, returns nothing/undefined.\n */\n\n\n Player.prototype.src = function src(source) {\n var _this10 = this;\n\n // getter usage\n if (typeof source === 'undefined') {\n return this.cache_.src || '';\n }\n // filter out invalid sources and turn our source into\n // an array of source objects\n var sources = filterSource(source);\n\n // if a source was passed in then it is invalid because\n // it was filtered to a zero length Array. So we have to\n // show an error\n if (!sources.length) {\n this.setTimeout(function () {\n this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });\n }, 0);\n return;\n }\n\n // intial sources\n this.changingSrc_ = true;\n\n this.cache_.sources = sources;\n this.updateSourceCaches_(sources[0]);\n\n // middlewareSource is the source after it has been changed by middleware\n setSource(this, sources[0], function (middlewareSource, mws) {\n _this10.middleware_ = mws;\n\n // since sourceSet is async we have to update the cache again after we select a source since\n // the source that is selected could be out of order from the cache update above this callback.\n _this10.cache_.sources = sources;\n _this10.updateSourceCaches_(middlewareSource);\n\n var err = _this10.src_(middlewareSource);\n\n if (err) {\n if (sources.length > 1) {\n return _this10.src(sources.slice(1));\n }\n\n _this10.changingSrc_ = false;\n\n // We need to wrap this in a timeout to give folks a chance to add error event handlers\n _this10.setTimeout(function () {\n this.error({ code: 4, message: this.localize(this.options_.notSupportedMessage) });\n }, 0);\n\n // we could not find an appropriate tech, but let's still notify the delegate that this is it\n // this needs a better comment about why this is needed\n _this10.triggerReady();\n\n return;\n }\n\n setTech(mws, _this10.tech_);\n });\n };\n\n /**\n * Set the source object on the tech, returns a boolean that indicates wether\n * there is a tech that can play the source or not\n *\n * @param {Tech~SourceObject} source\n * The source object to set on the Tech\n *\n * @return {Boolean}\n * - True if there is no Tech to playback this source\n * - False otherwise\n *\n * @private\n */\n\n\n Player.prototype.src_ = function src_(source) {\n var _this11 = this;\n\n var sourceTech = this.selectSource([source]);\n\n if (!sourceTech) {\n return true;\n }\n\n if (!titleCaseEquals(sourceTech.tech, this.techName_)) {\n this.changingSrc_ = true;\n // load this technology with the chosen source\n this.loadTech_(sourceTech.tech, sourceTech.source);\n this.tech_.ready(function () {\n _this11.changingSrc_ = false;\n });\n return false;\n }\n\n // wait until the tech is ready to set the source\n // and set it synchronously if possible (#2326)\n this.ready(function () {\n\n // The setSource tech method was added with source handlers\n // so older techs won't support it\n // We need to check the direct prototype for the case where subclasses\n // of the tech do not support source handlers\n if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {\n this.techCall_('setSource', source);\n } else {\n this.techCall_('src', source.src);\n }\n\n this.changingSrc_ = false;\n }, true);\n\n return false;\n };\n\n /**\n * Begin loading the src data.\n */\n\n\n Player.prototype.load = function load() {\n this.techCall_('load');\n };\n\n /**\n * Reset the player. Loads the first tech in the techOrder,\n * and calls `reset` on the tech`.\n */\n\n\n Player.prototype.reset = function reset() {\n if (this.tech_) {\n this.tech_.clearTracks('text');\n }\n this.loadTech_(this.options_.techOrder[0], null);\n this.techCall_('reset');\n };\n\n /**\n * Returns all of the current source objects.\n *\n * @return {Tech~SourceObject[]}\n * The current source objects\n */\n\n\n Player.prototype.currentSources = function currentSources() {\n var source = this.currentSource();\n var sources = [];\n\n // assume `{}` or `{ src }`\n if (Object.keys(source).length !== 0) {\n sources.push(source);\n }\n\n return this.cache_.sources || sources;\n };\n\n /**\n * Returns the current source object.\n *\n * @return {Tech~SourceObject}\n * The current source object\n */\n\n\n Player.prototype.currentSource = function currentSource() {\n return this.cache_.source || {};\n };\n\n /**\n * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4\n * Can be used in conjuction with `currentType` to assist in rebuilding the current source object.\n *\n * @return {string}\n * The current source\n */\n\n\n Player.prototype.currentSrc = function currentSrc() {\n return this.currentSource() && this.currentSource().src || '';\n };\n\n /**\n * Get the current source type e.g. video/mp4\n * This can allow you rebuild the current source object so that you could load the same\n * source and tech later\n *\n * @return {string}\n * The source MIME type\n */\n\n\n Player.prototype.currentType = function currentType() {\n return this.currentSource() && this.currentSource().type || '';\n };\n\n /**\n * Get or set the preload attribute\n *\n * @param {boolean} [value]\n * - true means that we should preload\n * - false maens that we should not preload\n *\n * @return {string}\n * The preload attribute value when getting\n */\n\n\n Player.prototype.preload = function preload(value) {\n if (value !== undefined) {\n this.techCall_('setPreload', value);\n this.options_.preload = value;\n return;\n }\n return this.techGet_('preload');\n };\n\n /**\n * Get or set the autoplay option. When this is a boolean it will\n * modify the attribute on the tech. When this is a string the attribute on\n * the tech will be removed and `Player` will handle autoplay on loadstarts.\n *\n * @param {boolean|string} [value]\n * - true: autoplay using the browser behavior\n * - false: do not autoplay\n * - 'play': call play() on every loadstart\n * - 'muted': call muted() then play() on every loadstart\n * - 'any': call play() on every loadstart. if that fails call muted() then play().\n * - *: values other than those listed here will be set `autoplay` to true\n *\n * @return {boolean|string}\n * The current value of autoplay when getting\n */\n\n\n Player.prototype.autoplay = function autoplay(value) {\n // getter usage\n if (value === undefined) {\n return this.options_.autoplay || false;\n }\n\n var techAutoplay = void 0;\n\n // if the value is a valid string set it to that\n if (typeof value === 'string' && /(any|play|muted)/.test(value)) {\n this.options_.autoplay = value;\n this.manualAutoplay_(value);\n techAutoplay = false;\n\n // any falsy value sets autoplay to false in the browser,\n // lets do the same\n } else if (!value) {\n this.options_.autoplay = false;\n\n // any other value (ie truthy) sets autoplay to true\n } else {\n this.options_.autoplay = true;\n }\n\n techAutoplay = techAutoplay || this.options_.autoplay;\n\n // if we don't have a tech then we do not queue up\n // a setAutoplay call on tech ready. We do this because the\n // autoplay option will be passed in the constructor and we\n // do not need to set it twice\n if (this.tech_) {\n this.techCall_('setAutoplay', techAutoplay);\n }\n };\n\n /**\n * Set or unset the playsinline attribute.\n * Playsinline tells the browser that non-fullscreen playback is preferred.\n *\n * @param {boolean} [value]\n * - true means that we should try to play inline by default\n * - false means that we should use the browser's default playback mode,\n * which in most cases is inline. iOS Safari is a notable exception\n * and plays fullscreen by default.\n *\n * @return {string|Player}\n * - the current value of playsinline\n * - the player when setting\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}\n */\n\n\n Player.prototype.playsinline = function playsinline(value) {\n if (value !== undefined) {\n this.techCall_('setPlaysinline', value);\n this.options_.playsinline = value;\n return this;\n }\n return this.techGet_('playsinline');\n };\n\n /**\n * Get or set the loop attribute on the video element.\n *\n * @param {boolean} [value]\n * - true means that we should loop the video\n * - false means that we should not loop the video\n *\n * @return {string}\n * The current value of loop when getting\n */\n\n\n Player.prototype.loop = function loop(value) {\n if (value !== undefined) {\n this.techCall_('setLoop', value);\n this.options_.loop = value;\n return;\n }\n return this.techGet_('loop');\n };\n\n /**\n * Get or set the poster image source url\n *\n * @fires Player#posterchange\n *\n * @param {string} [src]\n * Poster image source URL\n *\n * @return {string}\n * The current value of poster when getting\n */\n\n\n Player.prototype.poster = function poster(src) {\n if (src === undefined) {\n return this.poster_;\n }\n\n // The correct way to remove a poster is to set as an empty string\n // other falsey values will throw errors\n if (!src) {\n src = '';\n }\n\n if (src === this.poster_) {\n return;\n }\n\n // update the internal poster variable\n this.poster_ = src;\n\n // update the tech's poster\n this.techCall_('setPoster', src);\n\n this.isPosterFromTech_ = false;\n\n // alert components that the poster has been set\n /**\n * This event fires when the poster image is changed on the player.\n *\n * @event Player#posterchange\n * @type {EventTarget~Event}\n */\n this.trigger('posterchange');\n };\n\n /**\n * Some techs (e.g. YouTube) can provide a poster source in an\n * asynchronous way. We want the poster component to use this\n * poster source so that it covers up the tech's controls.\n * (YouTube's play button). However we only want to use this\n * source if the player user hasn't set a poster through\n * the normal APIs.\n *\n * @fires Player#posterchange\n * @listens Tech#posterchange\n * @private\n */\n\n\n Player.prototype.handleTechPosterChange_ = function handleTechPosterChange_() {\n if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {\n var newPoster = this.tech_.poster() || '';\n\n if (newPoster !== this.poster_) {\n this.poster_ = newPoster;\n this.isPosterFromTech_ = true;\n\n // Let components know the poster has changed\n this.trigger('posterchange');\n }\n }\n };\n\n /**\n * Get or set whether or not the controls are showing.\n *\n * @fires Player#controlsenabled\n *\n * @param {boolean} [bool]\n * - true to turn controls on\n * - false to turn controls off\n *\n * @return {boolean}\n * The current value of controls when getting\n */\n\n\n Player.prototype.controls = function controls(bool) {\n if (bool === undefined) {\n return !!this.controls_;\n }\n\n bool = !!bool;\n\n // Don't trigger a change event unless it actually changed\n if (this.controls_ === bool) {\n return;\n }\n\n this.controls_ = bool;\n\n if (this.usingNativeControls()) {\n this.techCall_('setControls', bool);\n }\n\n if (this.controls_) {\n this.removeClass('vjs-controls-disabled');\n this.addClass('vjs-controls-enabled');\n /**\n * @event Player#controlsenabled\n * @type {EventTarget~Event}\n */\n this.trigger('controlsenabled');\n if (!this.usingNativeControls()) {\n this.addTechControlsListeners_();\n }\n } else {\n this.removeClass('vjs-controls-enabled');\n this.addClass('vjs-controls-disabled');\n /**\n * @event Player#controlsdisabled\n * @type {EventTarget~Event}\n */\n this.trigger('controlsdisabled');\n if (!this.usingNativeControls()) {\n this.removeTechControlsListeners_();\n }\n }\n };\n\n /**\n * Toggle native controls on/off. Native controls are the controls built into\n * devices (e.g. default iPhone controls), Flash, or other techs\n * (e.g. Vimeo Controls)\n * **This should only be set by the current tech, because only the tech knows\n * if it can support native controls**\n *\n * @fires Player#usingnativecontrols\n * @fires Player#usingcustomcontrols\n *\n * @param {boolean} [bool]\n * - true to turn native controls on\n * - false to turn native controls off\n *\n * @return {boolean}\n * The current value of native controls when getting\n */\n\n\n Player.prototype.usingNativeControls = function usingNativeControls(bool) {\n if (bool === undefined) {\n return !!this.usingNativeControls_;\n }\n\n bool = !!bool;\n\n // Don't trigger a change event unless it actually changed\n if (this.usingNativeControls_ === bool) {\n return;\n }\n\n this.usingNativeControls_ = bool;\n\n if (this.usingNativeControls_) {\n this.addClass('vjs-using-native-controls');\n\n /**\n * player is using the native device controls\n *\n * @event Player#usingnativecontrols\n * @type {EventTarget~Event}\n */\n this.trigger('usingnativecontrols');\n } else {\n this.removeClass('vjs-using-native-controls');\n\n /**\n * player is using the custom HTML controls\n *\n * @event Player#usingcustomcontrols\n * @type {EventTarget~Event}\n */\n this.trigger('usingcustomcontrols');\n }\n };\n\n /**\n * Set or get the current MediaError\n *\n * @fires Player#error\n *\n * @param {MediaError|string|number} [err]\n * A MediaError or a string/number to be turned\n * into a MediaError\n *\n * @return {MediaError|null}\n * The current MediaError when getting (or null)\n */\n\n\n Player.prototype.error = function error(err) {\n if (err === undefined) {\n return this.error_ || null;\n }\n\n // restoring to default\n if (err === null) {\n this.error_ = err;\n this.removeClass('vjs-error');\n if (this.errorDisplay) {\n this.errorDisplay.close();\n }\n return;\n }\n\n this.error_ = new MediaError(err);\n\n // add the vjs-error classname to the player\n this.addClass('vjs-error');\n\n // log the name of the error type and any message\n // ie8 just logs \"[object object]\" if you just log the error object\n log$1.error('(CODE:' + this.error_.code + ' ' + MediaError.errorTypes[this.error_.code] + ')', this.error_.message, this.error_);\n\n /**\n * @event Player#error\n * @type {EventTarget~Event}\n */\n this.trigger('error');\n\n return;\n };\n\n /**\n * Report user activity\n *\n * @param {Object} event\n * Event object\n */\n\n\n Player.prototype.reportUserActivity = function reportUserActivity(event) {\n this.userActivity_ = true;\n };\n\n /**\n * Get/set if user is active\n *\n * @fires Player#useractive\n * @fires Player#userinactive\n *\n * @param {boolean} [bool]\n * - true if the user is active\n * - false if the user is inactive\n *\n * @return {boolean}\n * The current value of userActive when getting\n */\n\n\n Player.prototype.userActive = function userActive(bool) {\n if (bool === undefined) {\n return this.userActive_;\n }\n\n bool = !!bool;\n\n if (bool === this.userActive_) {\n return;\n }\n\n this.userActive_ = bool;\n\n if (this.userActive_) {\n this.userActivity_ = true;\n this.removeClass('vjs-user-inactive');\n this.addClass('vjs-user-active');\n /**\n * @event Player#useractive\n * @type {EventTarget~Event}\n */\n this.trigger('useractive');\n return;\n }\n\n // Chrome/Safari/IE have bugs where when you change the cursor it can\n // trigger a mousemove event. This causes an issue when you're hiding\n // the cursor when the user is inactive, and a mousemove signals user\n // activity. Making it impossible to go into inactive mode. Specifically\n // this happens in fullscreen when we really need to hide the cursor.\n //\n // When this gets resolved in ALL browsers it can be removed\n // https://code.google.com/p/chromium/issues/detail?id=103041\n if (this.tech_) {\n this.tech_.one('mousemove', function (e) {\n e.stopPropagation();\n e.preventDefault();\n });\n }\n\n this.userActivity_ = false;\n this.removeClass('vjs-user-active');\n this.addClass('vjs-user-inactive');\n /**\n * @event Player#userinactive\n * @type {EventTarget~Event}\n */\n this.trigger('userinactive');\n };\n\n /**\n * Listen for user activity based on timeout value\n *\n * @private\n */\n\n\n Player.prototype.listenForUserActivity_ = function listenForUserActivity_() {\n var mouseInProgress = void 0;\n var lastMoveX = void 0;\n var lastMoveY = void 0;\n var handleActivity = bind(this, this.reportUserActivity);\n\n var handleMouseMove = function handleMouseMove(e) {\n // #1068 - Prevent mousemove spamming\n // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970\n if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {\n lastMoveX = e.screenX;\n lastMoveY = e.screenY;\n handleActivity();\n }\n };\n\n var handleMouseDown = function handleMouseDown() {\n handleActivity();\n // For as long as the they are touching the device or have their mouse down,\n // we consider them active even if they're not moving their finger or mouse.\n // So we want to continue to update that they are active\n this.clearInterval(mouseInProgress);\n // Setting userActivity=true now and setting the interval to the same time\n // as the activityCheck interval (250) should ensure we never miss the\n // next activityCheck\n mouseInProgress = this.setInterval(handleActivity, 250);\n };\n\n var handleMouseUp = function handleMouseUp(event) {\n handleActivity();\n // Stop the interval that maintains activity if the mouse/touch is down\n this.clearInterval(mouseInProgress);\n };\n\n // Any mouse movement will be considered user activity\n this.on('mousedown', handleMouseDown);\n this.on('mousemove', handleMouseMove);\n this.on('mouseup', handleMouseUp);\n\n // Listen for keyboard navigation\n // Shouldn't need to use inProgress interval because of key repeat\n this.on('keydown', handleActivity);\n this.on('keyup', handleActivity);\n\n // Run an interval every 250 milliseconds instead of stuffing everything into\n // the mousemove/touchmove function itself, to prevent performance degradation.\n // `this.reportUserActivity` simply sets this.userActivity_ to true, which\n // then gets picked up by this loop\n // http://ejohn.org/blog/learning-from-twitter/\n var inactivityTimeout = void 0;\n\n this.setInterval(function () {\n // Check to see if mouse/touch activity has happened\n if (!this.userActivity_) {\n return;\n }\n\n // Reset the activity tracker\n this.userActivity_ = false;\n\n // If the user state was inactive, set the state to active\n this.userActive(true);\n\n // Clear any existing inactivity timeout to start the timer over\n this.clearTimeout(inactivityTimeout);\n\n var timeout = this.options_.inactivityTimeout;\n\n if (timeout <= 0) {\n return;\n }\n\n // In <timeout> milliseconds, if no more activity has occurred the\n // user will be considered inactive\n inactivityTimeout = this.setTimeout(function () {\n // Protect against the case where the inactivityTimeout can trigger just\n // before the next user activity is picked up by the activity check loop\n // causing a flicker\n if (!this.userActivity_) {\n this.userActive(false);\n }\n }, timeout);\n }, 250);\n };\n\n /**\n * Gets or sets the current playback rate. A playback rate of\n * 1.0 represents normal speed and 0.5 would indicate half-speed\n * playback, for instance.\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate\n *\n * @param {number} [rate]\n * New playback rate to set.\n *\n * @return {number}\n * The current playback rate when getting or 1.0\n */\n\n\n Player.prototype.playbackRate = function playbackRate(rate) {\n if (rate !== undefined) {\n // NOTE: this.cache_.lastPlaybackRate is set from the tech handler\n // that is registered above\n this.techCall_('setPlaybackRate', rate);\n return;\n }\n\n if (this.tech_ && this.tech_.featuresPlaybackRate) {\n return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');\n }\n return 1.0;\n };\n\n /**\n * Gets or sets the current default playback rate. A default playback rate of\n * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.\n * defaultPlaybackRate will only represent what the intial playbackRate of a video was, not\n * not the current playbackRate.\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate\n *\n * @param {number} [rate]\n * New default playback rate to set.\n *\n * @return {number|Player}\n * - The default playback rate when getting or 1.0\n * - the player when setting\n */\n\n\n Player.prototype.defaultPlaybackRate = function defaultPlaybackRate(rate) {\n if (rate !== undefined) {\n return this.techCall_('setDefaultPlaybackRate', rate);\n }\n\n if (this.tech_ && this.tech_.featuresPlaybackRate) {\n return this.techGet_('defaultPlaybackRate');\n }\n return 1.0;\n };\n\n /**\n * Gets or sets the audio flag\n *\n * @param {boolean} bool\n * - true signals that this is an audio player\n * - false signals that this is not an audio player\n *\n * @return {boolean}\n * The current value of isAudio when getting\n */\n\n\n Player.prototype.isAudio = function isAudio(bool) {\n if (bool !== undefined) {\n this.isAudio_ = !!bool;\n return;\n }\n\n return !!this.isAudio_;\n };\n\n /**\n * A helper method for adding a {@link TextTrack} to our\n * {@link TextTrackList}.\n *\n * In addition to the W3C settings we allow adding additional info through options.\n *\n * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack\n *\n * @param {string} [kind]\n * the kind of TextTrack you are adding\n *\n * @param {string} [label]\n * the label to give the TextTrack label\n *\n * @param {string} [language]\n * the language to set on the TextTrack\n *\n * @return {TextTrack|undefined}\n * the TextTrack that was added or undefined\n * if there is no tech\n */\n\n\n Player.prototype.addTextTrack = function addTextTrack(kind, label, language) {\n if (this.tech_) {\n return this.tech_.addTextTrack(kind, label, language);\n }\n };\n\n /**\n * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}. It will\n * automatically removed from the video element whenever the source changes, unless\n * manualCleanup is set to false.\n *\n * @param {Object} options\n * Options to pass to {@link HTMLTrackElement} during creation. See\n * {@link HTMLTrackElement} for object properties that you should use.\n *\n * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be\n *\n * @return {HtmlTrackElement}\n * the HTMLTrackElement that was created and added\n * to the HtmlTrackElementList and the remote\n * TextTrackList\n *\n * @deprecated The default value of the \"manualCleanup\" parameter will default\n * to \"false\" in upcoming versions of Video.js\n */\n\n\n Player.prototype.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {\n if (this.tech_) {\n return this.tech_.addRemoteTextTrack(options, manualCleanup);\n }\n };\n\n /**\n * Remove a remote {@link TextTrack} from the respective\n * {@link TextTrackList} and {@link HtmlTrackElementList}.\n *\n * @param {Object} track\n * Remote {@link TextTrack} to remove\n *\n * @return {undefined}\n * does not return anything\n */\n\n\n Player.prototype.removeRemoteTextTrack = function removeRemoteTextTrack() {\n var _ref3 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},\n _ref3$track = _ref3.track,\n track = _ref3$track === undefined ? arguments[0] : _ref3$track;\n\n // destructure the input into an object with a track argument, defaulting to arguments[0]\n // default the whole argument to an empty object if nothing was passed in\n\n if (this.tech_) {\n return this.tech_.removeRemoteTextTrack(track);\n }\n };\n\n /**\n * Gets available media playback quality metrics as specified by the W3C's Media\n * Playback Quality API.\n *\n * @see [Spec]{@link https://wicg.github.io/media-playback-quality}\n *\n * @return {Object|undefined}\n * An object with supported media playback quality metrics or undefined if there\n * is no tech or the tech does not support it.\n */\n\n\n Player.prototype.getVideoPlaybackQuality = function getVideoPlaybackQuality() {\n return this.techGet_('getVideoPlaybackQuality');\n };\n\n /**\n * Get video width\n *\n * @return {number}\n * current video width\n */\n\n\n Player.prototype.videoWidth = function videoWidth() {\n return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;\n };\n\n /**\n * Get video height\n *\n * @return {number}\n * current video height\n */\n\n\n Player.prototype.videoHeight = function videoHeight() {\n return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;\n };\n\n /**\n * The player's language code\n * NOTE: The language should be set in the player options if you want the\n * the controls to be built with a specific language. Changing the lanugage\n * later will not update controls text.\n *\n * @param {string} [code]\n * the language code to set the player to\n *\n * @return {string}\n * The current language code when getting\n */\n\n\n Player.prototype.language = function language(code) {\n if (code === undefined) {\n return this.language_;\n }\n\n this.language_ = String(code).toLowerCase();\n };\n\n /**\n * Get the player's language dictionary\n * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time\n * Languages specified directly in the player options have precedence\n *\n * @return {Array}\n * An array of of supported languages\n */\n\n\n Player.prototype.languages = function languages() {\n return mergeOptions(Player.prototype.options_.languages, this.languages_);\n };\n\n /**\n * returns a JavaScript object reperesenting the current track\n * information. **DOES not return it as JSON**\n *\n * @return {Object}\n * Object representing the current of track info\n */\n\n\n Player.prototype.toJSON = function toJSON() {\n var options = mergeOptions(this.options_);\n var tracks = options.tracks;\n\n options.tracks = [];\n\n for (var i = 0; i < tracks.length; i++) {\n var track = tracks[i];\n\n // deep merge tracks and null out player so no circular references\n track = mergeOptions(track);\n track.player = undefined;\n options.tracks[i] = track;\n }\n\n return options;\n };\n\n /**\n * Creates a simple modal dialog (an instance of the {@link ModalDialog}\n * component) that immediately overlays the player with arbitrary\n * content and removes itself when closed.\n *\n * @param {string|Function|Element|Array|null} content\n * Same as {@link ModalDialog#content}'s param of the same name.\n * The most straight-forward usage is to provide a string or DOM\n * element.\n *\n * @param {Object} [options]\n * Extra options which will be passed on to the {@link ModalDialog}.\n *\n * @return {ModalDialog}\n * the {@link ModalDialog} that was created\n */\n\n\n Player.prototype.createModal = function createModal(content, options) {\n var _this12 = this;\n\n options = options || {};\n options.content = content || '';\n\n var modal = new ModalDialog(this, options);\n\n this.addChild(modal);\n modal.on('dispose', function () {\n _this12.removeChild(modal);\n });\n\n modal.open();\n return modal;\n };\n\n /**\n * Gets tag settings\n *\n * @param {Element} tag\n * The player tag\n *\n * @return {Object}\n * An object containing all of the settings\n * for a player tag\n */\n\n\n Player.getTagSettings = function getTagSettings(tag) {\n var baseOptions = {\n sources: [],\n tracks: []\n };\n\n var tagOptions = getAttributes(tag);\n var dataSetup = tagOptions['data-setup'];\n\n if (hasClass(tag, 'vjs-fluid')) {\n tagOptions.fluid = true;\n }\n\n // Check if data-setup attr exists.\n if (dataSetup !== null) {\n // Parse options JSON\n // If empty string, make it a parsable json object.\n var _safeParseTuple = safeParseTuple(dataSetup || '{}'),\n err = _safeParseTuple[0],\n data = _safeParseTuple[1];\n\n if (err) {\n log$1.error(err);\n }\n assign(tagOptions, data);\n }\n\n assign(baseOptions, tagOptions);\n\n // Get tag children settings\n if (tag.hasChildNodes()) {\n var children = tag.childNodes;\n\n for (var i = 0, j = children.length; i < j; i++) {\n var child = children[i];\n // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/\n var childName = child.nodeName.toLowerCase();\n\n if (childName === 'source') {\n baseOptions.sources.push(getAttributes(child));\n } else if (childName === 'track') {\n baseOptions.tracks.push(getAttributes(child));\n }\n }\n }\n\n return baseOptions;\n };\n\n /**\n * Determine wether or not flexbox is supported\n *\n * @return {boolean}\n * - true if flexbox is supported\n * - false if flexbox is not supported\n */\n\n\n Player.prototype.flexNotSupported_ = function flexNotSupported_() {\n var elem = document.createElement('i');\n\n // Note: We don't actually use flexBasis (or flexOrder), but it's one of the more\n // common flex features that we can rely on when checking for flex support.\n return !('flexBasis' in elem.style || 'webkitFlexBasis' in elem.style || 'mozFlexBasis' in elem.style || 'msFlexBasis' in elem.style ||\n // IE10-specific (2012 flex spec)\n 'msFlexOrder' in elem.style);\n };\n\n return Player;\n}(Component);\n\n/**\n * Get the {@link VideoTrackList}\n * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist\n *\n * @return {VideoTrackList}\n * the current video track list\n *\n * @method Player.prototype.videoTracks\n */\n\n/**\n * Get the {@link AudioTrackList}\n * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist\n *\n * @return {AudioTrackList}\n * the current audio track list\n *\n * @method Player.prototype.audioTracks\n */\n\n/**\n * Get the {@link TextTrackList}\n *\n * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks\n *\n * @return {TextTrackList}\n * the current text track list\n *\n * @method Player.prototype.textTracks\n */\n\n/**\n * Get the remote {@link TextTrackList}\n *\n * @return {TextTrackList}\n * The current remote text track list\n *\n * @method Player.prototype.remoteTextTracks\n */\n\n/**\n * Get the remote {@link HtmlTrackElementList} tracks.\n *\n * @return {HtmlTrackElementList}\n * The current remote text track element list\n *\n * @method Player.prototype.remoteTextTrackEls\n */\n\nALL.names.forEach(function (name$$1) {\n var props = ALL[name$$1];\n\n Player.prototype[props.getterName] = function () {\n if (this.tech_) {\n return this.tech_[props.getterName]();\n }\n\n // if we have not yet loadTech_, we create {video,audio,text}Tracks_\n // these will be passed to the tech during loading\n this[props.privateName] = this[props.privateName] || new props.ListClass();\n return this[props.privateName];\n };\n});\n\n/**\n * Global player list\n *\n * @type {Object}\n */\nPlayer.players = {};\n\nvar navigator = window.navigator;\n\n/*\n * Player instance options, surfaced using options\n * options = Player.prototype.options_\n * Make changes in options, not here.\n *\n * @type {Object}\n * @private\n */\nPlayer.prototype.options_ = {\n // Default order of fallback technology\n techOrder: Tech.defaultTechOrder_,\n\n html5: {},\n flash: {},\n\n // default inactivity timeout\n inactivityTimeout: 2000,\n\n // default playback rates\n playbackRates: [],\n // Add playback rate selection by adding rates\n // 'playbackRates': [0.5, 1, 1.5, 2],\n\n // Included control sets\n children: ['mediaLoader', 'posterImage', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'controlBar', 'errorDisplay', 'textTrackSettings'],\n\n language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',\n\n // locales and their language translations\n languages: {},\n\n // Default message to show when a video cannot be played.\n notSupportedMessage: 'No compatible source was found for this media.'\n};\n\nif (!IS_IE8) {\n Player.prototype.options_.children.push('resizeManager');\n}\n\n[\n/**\n * Returns whether or not the player is in the \"ended\" state.\n *\n * @return {Boolean} True if the player is in the ended state, false if not.\n * @method Player#ended\n */\n'ended',\n/**\n * Returns whether or not the player is in the \"seeking\" state.\n *\n * @return {Boolean} True if the player is in the seeking state, false if not.\n * @method Player#seeking\n */\n'seeking',\n/**\n * Returns the TimeRanges of the media that are currently available\n * for seeking to.\n *\n * @return {TimeRanges} the seekable intervals of the media timeline\n * @method Player#seekable\n */\n'seekable',\n/**\n * Returns the current state of network activity for the element, from\n * the codes in the list below.\n * - NETWORK_EMPTY (numeric value 0)\n * The element has not yet been initialised. All attributes are in\n * their initial states.\n * - NETWORK_IDLE (numeric value 1)\n * The element's resource selection algorithm is active and has\n * selected a resource, but it is not actually using the network at\n * this time.\n * - NETWORK_LOADING (numeric value 2)\n * The user agent is actively trying to download data.\n * - NETWORK_NO_SOURCE (numeric value 3)\n * The element's resource selection algorithm is active, but it has\n * not yet found a resource to use.\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states\n * @return {number} the current network activity state\n * @method Player#networkState\n */\n'networkState',\n/**\n * Returns a value that expresses the current state of the element\n * with respect to rendering the current playback position, from the\n * codes in the list below.\n * - HAVE_NOTHING (numeric value 0)\n * No information regarding the media resource is available.\n * - HAVE_METADATA (numeric value 1)\n * Enough of the resource has been obtained that the duration of the\n * resource is available.\n * - HAVE_CURRENT_DATA (numeric value 2)\n * Data for the immediate current playback position is available.\n * - HAVE_FUTURE_DATA (numeric value 3)\n * Data for the immediate current playback position is available, as\n * well as enough data for the user agent to advance the current\n * playback position in the direction of playback.\n * - HAVE_ENOUGH_DATA (numeric value 4)\n * The user agent estimates that enough data is available for\n * playback to proceed uninterrupted.\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate\n * @return {number} the current playback rendering state\n * @method Player#readyState\n */\n'readyState'].forEach(function (fn) {\n Player.prototype[fn] = function () {\n return this.techGet_(fn);\n };\n});\n\nTECH_EVENTS_RETRIGGER.forEach(function (event) {\n Player.prototype['handleTech' + toTitleCase(event) + '_'] = function () {\n return this.trigger(event);\n };\n});\n\n/**\n * Fired when the player has initial duration and dimension information\n *\n * @event Player#loadedmetadata\n * @type {EventTarget~Event}\n */\n\n/**\n * Fired when the player has downloaded data at the current playback position\n *\n * @event Player#loadeddata\n * @type {EventTarget~Event}\n */\n\n/**\n * Fired when the current playback position has changed *\n * During playback this is fired every 15-250 milliseconds, depending on the\n * playback technology in use.\n *\n * @event Player#timeupdate\n * @type {EventTarget~Event}\n */\n\n/**\n * Fired when the volume changes\n *\n * @event Player#volumechange\n * @type {EventTarget~Event}\n */\n\n/**\n * Reports whether or not a player has a plugin available.\n *\n * This does not report whether or not the plugin has ever been initialized\n * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.\n *\n * @method Player#hasPlugin\n * @param {string} name\n * The name of a plugin.\n *\n * @return {boolean}\n * Whether or not this player has the requested plugin available.\n */\n\n/**\n * Reports whether or not a player is using a plugin by name.\n *\n * For basic plugins, this only reports whether the plugin has _ever_ been\n * initialized on this player.\n *\n * @method Player#usingPlugin\n * @param {string} name\n * The name of a plugin.\n *\n * @return {boolean}\n * Whether or not this player is using the requested plugin.\n */\n\nComponent.registerComponent('Player', Player);\n\n/**\n * @file plugin.js\n */\n/**\n * The base plugin name.\n *\n * @private\n * @constant\n * @type {string}\n */\nvar BASE_PLUGIN_NAME = 'plugin';\n\n/**\n * The key on which a player's active plugins cache is stored.\n *\n * @private\n * @constant\n * @type {string}\n */\nvar PLUGIN_CACHE_KEY = 'activePlugins_';\n\n/**\n * Stores registered plugins in a private space.\n *\n * @private\n * @type {Object}\n */\nvar pluginStorage = {};\n\n/**\n * Reports whether or not a plugin has been registered.\n *\n * @private\n * @param {string} name\n * The name of a plugin.\n *\n * @returns {boolean}\n * Whether or not the plugin has been registered.\n */\nvar pluginExists = function pluginExists(name) {\n return pluginStorage.hasOwnProperty(name);\n};\n\n/**\n * Get a single registered plugin by name.\n *\n * @private\n * @param {string} name\n * The name of a plugin.\n *\n * @returns {Function|undefined}\n * The plugin (or undefined).\n */\nvar getPlugin = function getPlugin(name) {\n return pluginExists(name) ? pluginStorage[name] : undefined;\n};\n\n/**\n * Marks a plugin as \"active\" on a player.\n *\n * Also, ensures that the player has an object for tracking active plugins.\n *\n * @private\n * @param {Player} player\n * A Video.js player instance.\n *\n * @param {string} name\n * The name of a plugin.\n */\nvar markPluginAsActive = function markPluginAsActive(player, name) {\n player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};\n player[PLUGIN_CACHE_KEY][name] = true;\n};\n\n/**\n * Triggers a pair of plugin setup events.\n *\n * @private\n * @param {Player} player\n * A Video.js player instance.\n *\n * @param {Plugin~PluginEventHash} hash\n * A plugin event hash.\n *\n * @param {Boolean} [before]\n * If true, prefixes the event name with \"before\". In other words,\n * use this to trigger \"beforepluginsetup\" instead of \"pluginsetup\".\n */\nvar triggerSetupEvent = function triggerSetupEvent(player, hash, before) {\n var eventName = (before ? 'before' : '') + 'pluginsetup';\n\n player.trigger(eventName, hash);\n player.trigger(eventName + ':' + hash.name, hash);\n};\n\n/**\n * Takes a basic plugin function and returns a wrapper function which marks\n * on the player that the plugin has been activated.\n *\n * @private\n * @param {string} name\n * The name of the plugin.\n *\n * @param {Function} plugin\n * The basic plugin.\n *\n * @returns {Function}\n * A wrapper function for the given plugin.\n */\nvar createBasicPlugin = function createBasicPlugin(name, plugin) {\n var basicPluginWrapper = function basicPluginWrapper() {\n\n // We trigger the \"beforepluginsetup\" and \"pluginsetup\" events on the player\n // regardless, but we want the hash to be consistent with the hash provided\n // for advanced plugins.\n //\n // The only potentially counter-intuitive thing here is the `instance` in\n // the \"pluginsetup\" event is the value returned by the `plugin` function.\n triggerSetupEvent(this, { name: name, plugin: plugin, instance: null }, true);\n\n var instance = plugin.apply(this, arguments);\n\n markPluginAsActive(this, name);\n triggerSetupEvent(this, { name: name, plugin: plugin, instance: instance });\n\n return instance;\n };\n\n Object.keys(plugin).forEach(function (prop) {\n basicPluginWrapper[prop] = plugin[prop];\n });\n\n return basicPluginWrapper;\n};\n\n/**\n * Takes a plugin sub-class and returns a factory function for generating\n * instances of it.\n *\n * This factory function will replace itself with an instance of the requested\n * sub-class of Plugin.\n *\n * @private\n * @param {string} name\n * The name of the plugin.\n *\n * @param {Plugin} PluginSubClass\n * The advanced plugin.\n *\n * @returns {Function}\n */\nvar createPluginFactory = function createPluginFactory(name, PluginSubClass) {\n\n // Add a `name` property to the plugin prototype so that each plugin can\n // refer to itself by name.\n PluginSubClass.prototype.name = name;\n\n return function () {\n triggerSetupEvent(this, { name: name, plugin: PluginSubClass, instance: null }, true);\n\n for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n var instance = new (Function.prototype.bind.apply(PluginSubClass, [null].concat([this].concat(args))))();\n\n // The plugin is replaced by a function that returns the current instance.\n this[name] = function () {\n return instance;\n };\n\n triggerSetupEvent(this, instance.getEventHash());\n\n return instance;\n };\n};\n\n/**\n * Parent class for all advanced plugins.\n *\n * @mixes module:evented~EventedMixin\n * @mixes module:stateful~StatefulMixin\n * @fires Player#beforepluginsetup\n * @fires Player#beforepluginsetup:$name\n * @fires Player#pluginsetup\n * @fires Player#pluginsetup:$name\n * @listens Player#dispose\n * @throws {Error}\n * If attempting to instantiate the base {@link Plugin} class\n * directly instead of via a sub-class.\n */\n\nvar Plugin = function () {\n\n /**\n * Creates an instance of this class.\n *\n * Sub-classes should call `super` to ensure plugins are properly initialized.\n *\n * @param {Player} player\n * A Video.js player instance.\n */\n function Plugin(player) {\n classCallCheck(this, Plugin);\n\n if (this.constructor === Plugin) {\n throw new Error('Plugin must be sub-classed; not directly instantiated.');\n }\n\n this.player = player;\n\n // Make this object evented, but remove the added `trigger` method so we\n // use the prototype version instead.\n evented(this);\n delete this.trigger;\n\n stateful(this, this.constructor.defaultState);\n markPluginAsActive(player, this.name);\n\n // Auto-bind the dispose method so we can use it as a listener and unbind\n // it later easily.\n this.dispose = bind(this, this.dispose);\n\n // If the player is disposed, dispose the plugin.\n player.on('dispose', this.dispose);\n }\n\n /**\n * Get the version of the plugin that was set on <pluginName>.VERSION\n */\n\n\n Plugin.prototype.version = function version() {\n return this.constructor.VERSION;\n };\n\n /**\n * Each event triggered by plugins includes a hash of additional data with\n * conventional properties.\n *\n * This returns that object or mutates an existing hash.\n *\n * @param {Object} [hash={}]\n * An object to be used as event an event hash.\n *\n * @returns {Plugin~PluginEventHash}\n * An event hash object with provided properties mixed-in.\n */\n\n\n Plugin.prototype.getEventHash = function getEventHash() {\n var hash = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n hash.name = this.name;\n hash.plugin = this.constructor;\n hash.instance = this;\n return hash;\n };\n\n /**\n * Triggers an event on the plugin object and overrides\n * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.\n *\n * @param {string|Object} event\n * An event type or an object with a type property.\n *\n * @param {Object} [hash={}]\n * Additional data hash to merge with a\n * {@link Plugin~PluginEventHash|PluginEventHash}.\n *\n * @returns {boolean}\n * Whether or not default was prevented.\n */\n\n\n Plugin.prototype.trigger = function trigger$$1(event) {\n var hash = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n return trigger(this.eventBusEl_, event, this.getEventHash(hash));\n };\n\n /**\n * Handles \"statechanged\" events on the plugin. No-op by default, override by\n * subclassing.\n *\n * @abstract\n * @param {Event} e\n * An event object provided by a \"statechanged\" event.\n *\n * @param {Object} e.changes\n * An object describing changes that occurred with the \"statechanged\"\n * event.\n */\n\n\n Plugin.prototype.handleStateChanged = function handleStateChanged(e) {};\n\n /**\n * Disposes a plugin.\n *\n * Subclasses can override this if they want, but for the sake of safety,\n * it's probably best to subscribe the \"dispose\" event.\n *\n * @fires Plugin#dispose\n */\n\n\n Plugin.prototype.dispose = function dispose() {\n var name = this.name,\n player = this.player;\n\n /**\n * Signals that a advanced plugin is about to be disposed.\n *\n * @event Plugin#dispose\n * @type {EventTarget~Event}\n */\n\n this.trigger('dispose');\n this.off();\n player.off('dispose', this.dispose);\n\n // Eliminate any possible sources of leaking memory by clearing up\n // references between the player and the plugin instance and nulling out\n // the plugin's state and replacing methods with a function that throws.\n player[PLUGIN_CACHE_KEY][name] = false;\n this.player = this.state = null;\n\n // Finally, replace the plugin name on the player with a new factory\n // function, so that the plugin is ready to be set up again.\n player[name] = createPluginFactory(name, pluginStorage[name]);\n };\n\n /**\n * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).\n *\n * @param {string|Function} plugin\n * If a string, matches the name of a plugin. If a function, will be\n * tested directly.\n *\n * @returns {boolean}\n * Whether or not a plugin is a basic plugin.\n */\n\n\n Plugin.isBasic = function isBasic(plugin) {\n var p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;\n\n return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);\n };\n\n /**\n * Register a Video.js plugin.\n *\n * @param {string} name\n * The name of the plugin to be registered. Must be a string and\n * must not match an existing plugin or a method on the `Player`\n * prototype.\n *\n * @param {Function} plugin\n * A sub-class of `Plugin` or a function for basic plugins.\n *\n * @returns {Function}\n * For advanced plugins, a factory function for that plugin. For\n * basic plugins, a wrapper function that initializes the plugin.\n */\n\n\n Plugin.registerPlugin = function registerPlugin(name, plugin) {\n if (typeof name !== 'string') {\n throw new Error('Illegal plugin name, \"' + name + '\", must be a string, was ' + (typeof name === 'undefined' ? 'undefined' : _typeof(name)) + '.');\n }\n\n if (pluginExists(name)) {\n log$1.warn('A plugin named \"' + name + '\" already exists. You may want to avoid re-registering plugins!');\n } else if (Player.prototype.hasOwnProperty(name)) {\n throw new Error('Illegal plugin name, \"' + name + '\", cannot share a name with an existing player method!');\n }\n\n if (typeof plugin !== 'function') {\n throw new Error('Illegal plugin for \"' + name + '\", must be a function, was ' + (typeof plugin === 'undefined' ? 'undefined' : _typeof(plugin)) + '.');\n }\n\n pluginStorage[name] = plugin;\n\n // Add a player prototype method for all sub-classed plugins (but not for\n // the base Plugin class).\n if (name !== BASE_PLUGIN_NAME) {\n if (Plugin.isBasic(plugin)) {\n Player.prototype[name] = createBasicPlugin(name, plugin);\n } else {\n Player.prototype[name] = createPluginFactory(name, plugin);\n }\n }\n\n return plugin;\n };\n\n /**\n * De-register a Video.js plugin.\n *\n * @param {string} name\n * The name of the plugin to be deregistered.\n */\n\n\n Plugin.deregisterPlugin = function deregisterPlugin(name) {\n if (name === BASE_PLUGIN_NAME) {\n throw new Error('Cannot de-register base plugin.');\n }\n if (pluginExists(name)) {\n delete pluginStorage[name];\n delete Player.prototype[name];\n }\n };\n\n /**\n * Gets an object containing multiple Video.js plugins.\n *\n * @param {Array} [names]\n * If provided, should be an array of plugin names. Defaults to _all_\n * plugin names.\n *\n * @returns {Object|undefined}\n * An object containing plugin(s) associated with their name(s) or\n * `undefined` if no matching plugins exist).\n */\n\n\n Plugin.getPlugins = function getPlugins() {\n var names = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : Object.keys(pluginStorage);\n\n var result = void 0;\n\n names.forEach(function (name) {\n var plugin = getPlugin(name);\n\n if (plugin) {\n result = result || {};\n result[name] = plugin;\n }\n });\n\n return result;\n };\n\n /**\n * Gets a plugin's version, if available\n *\n * @param {string} name\n * The name of a plugin.\n *\n * @returns {string}\n * The plugin's version or an empty string.\n */\n\n\n Plugin.getPluginVersion = function getPluginVersion(name) {\n var plugin = getPlugin(name);\n\n return plugin && plugin.VERSION || '';\n };\n\n return Plugin;\n}();\n\n/**\n * Gets a plugin by name if it exists.\n *\n * @static\n * @method getPlugin\n * @memberOf Plugin\n * @param {string} name\n * The name of a plugin.\n *\n * @returns {Function|undefined}\n * The plugin (or `undefined`).\n */\n\n\nPlugin.getPlugin = getPlugin;\n\n/**\n * The name of the base plugin class as it is registered.\n *\n * @type {string}\n */\nPlugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;\n\nPlugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);\n\n/**\n * Documented in player.js\n *\n * @ignore\n */\nPlayer.prototype.usingPlugin = function (name) {\n return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;\n};\n\n/**\n * Documented in player.js\n *\n * @ignore\n */\nPlayer.prototype.hasPlugin = function (name) {\n return !!pluginExists(name);\n};\n\n/**\n * Signals that a plugin is about to be set up on a player.\n *\n * @event Player#beforepluginsetup\n * @type {Plugin~PluginEventHash}\n */\n\n/**\n * Signals that a plugin is about to be set up on a player - by name. The name\n * is the name of the plugin.\n *\n * @event Player#beforepluginsetup:$name\n * @type {Plugin~PluginEventHash}\n */\n\n/**\n * Signals that a plugin has just been set up on a player.\n *\n * @event Player#pluginsetup\n * @type {Plugin~PluginEventHash}\n */\n\n/**\n * Signals that a plugin has just been set up on a player - by name. The name\n * is the name of the plugin.\n *\n * @event Player#pluginsetup:$name\n * @type {Plugin~PluginEventHash}\n */\n\n/**\n * @typedef {Object} Plugin~PluginEventHash\n *\n * @property {string} instance\n * For basic plugins, the return value of the plugin function. For\n * advanced plugins, the plugin instance on which the event is fired.\n *\n * @property {string} name\n * The name of the plugin.\n *\n * @property {string} plugin\n * For basic plugins, the plugin function. For advanced plugins, the\n * plugin class/constructor.\n */\n\n/**\n * @file extend.js\n * @module extend\n */\n\n/**\n * A combination of node inherits and babel's inherits (after transpile).\n * Both work the same but node adds `super_` to the subClass\n * and Bable adds the superClass as __proto__. Both seem useful.\n *\n * @param {Object} subClass\n * The class to inherit to\n *\n * @param {Object} superClass\n * The class to inherit from\n *\n * @private\n */\nvar _inherits = function _inherits(subClass, superClass) {\n if (typeof superClass !== 'function' && superClass !== null) {\n throw new TypeError('Super expression must either be null or a function, not ' + (typeof superClass === 'undefined' ? 'undefined' : _typeof(superClass)));\n }\n\n subClass.prototype = Object.create(superClass && superClass.prototype, {\n constructor: {\n value: subClass,\n enumerable: false,\n writable: true,\n configurable: true\n }\n });\n\n if (superClass) {\n // node\n subClass.super_ = superClass;\n }\n};\n\n/**\n * Function for subclassing using the same inheritance that\n * videojs uses internally\n *\n * @static\n * @const\n *\n * @param {Object} superClass\n * The class to inherit from\n *\n * @param {Object} [subClassMethods={}]\n * The class to inherit to\n *\n * @return {Object}\n * The new object with subClassMethods that inherited superClass.\n */\nvar extendFn = function extendFn(superClass) {\n var subClassMethods = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var subClass = function subClass() {\n superClass.apply(this, arguments);\n };\n\n var methods = {};\n\n if ((typeof subClassMethods === 'undefined' ? 'undefined' : _typeof(subClassMethods)) === 'object') {\n if (subClassMethods.constructor !== Object.prototype.constructor) {\n subClass = subClassMethods.constructor;\n }\n methods = subClassMethods;\n } else if (typeof subClassMethods === 'function') {\n subClass = subClassMethods;\n }\n\n _inherits(subClass, superClass);\n\n // Extend subObj's prototype with functions and other properties from props\n for (var name in methods) {\n if (methods.hasOwnProperty(name)) {\n subClass.prototype[name] = methods[name];\n }\n }\n\n return subClass;\n};\n\n/**\n * @file video.js\n * @module videojs\n */\n// Include the built-in techs\n// HTML5 Element Shim for IE8\nif (typeof HTMLVideoElement === 'undefined' && isReal()) {\n document.createElement('video');\n document.createElement('audio');\n document.createElement('track');\n document.createElement('video-js');\n}\n\n/**\n * Normalize an `id` value by trimming off a leading `#`\n *\n * @param {string} id\n * A string, maybe with a leading `#`.\n *\n * @returns {string}\n * The string, without any leading `#`.\n */\nvar normalizeId = function normalizeId(id) {\n return id.indexOf('#') === 0 ? id.slice(1) : id;\n};\n\n/**\n * Doubles as the main function for users to create a player instance and also\n * the main library object.\n * The `videojs` function can be used to initialize or retrieve a player.\n *\n * @param {string|Element} id\n * Video element or video element ID\n *\n * @param {Object} [options]\n * Optional options object for config/settings\n *\n * @param {Component~ReadyCallback} [ready]\n * Optional ready callback\n *\n * @return {Player}\n * A player instance\n */\nfunction videojs(id, options, ready) {\n var player = videojs.getPlayer(id);\n\n if (player) {\n if (options) {\n log$1.warn('Player \"' + id + '\" is already initialised. Options will not be applied.');\n }\n if (ready) {\n player.ready(ready);\n }\n return player;\n }\n\n var el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;\n\n if (!isEl(el)) {\n throw new TypeError('The element or ID supplied is not valid. (videojs)');\n }\n\n if (!document.body.contains(el)) {\n log$1.warn('The element supplied is not included in the DOM');\n }\n\n options = options || {};\n\n videojs.hooks('beforesetup').forEach(function (hookFunction) {\n var opts = hookFunction(el, mergeOptions(options));\n\n if (!isObject(opts) || Array.isArray(opts)) {\n log$1.error('please return an object in beforesetup hooks');\n return;\n }\n\n options = mergeOptions(options, opts);\n });\n\n // We get the current \"Player\" component here in case an integration has\n // replaced it with a custom player.\n var PlayerComponent = Component.getComponent('Player');\n\n player = new PlayerComponent(el, options, ready);\n\n videojs.hooks('setup').forEach(function (hookFunction) {\n return hookFunction(player);\n });\n\n return player;\n}\n\n/**\n * An Object that contains lifecycle hooks as keys which point to an array\n * of functions that are run when a lifecycle is triggered\n */\nvideojs.hooks_ = {};\n\n/**\n * Get a list of hooks for a specific lifecycle\n * @function videojs.hooks\n *\n * @param {string} type\n * the lifecyle to get hooks from\n *\n * @param {Function|Function[]} [fn]\n * Optionally add a hook (or hooks) to the lifecycle that your are getting.\n *\n * @return {Array}\n * an array of hooks, or an empty array if there are none.\n */\nvideojs.hooks = function (type, fn) {\n videojs.hooks_[type] = videojs.hooks_[type] || [];\n if (fn) {\n videojs.hooks_[type] = videojs.hooks_[type].concat(fn);\n }\n return videojs.hooks_[type];\n};\n\n/**\n * Add a function hook to a specific videojs lifecycle.\n *\n * @param {string} type\n * the lifecycle to hook the function to.\n *\n * @param {Function|Function[]}\n * The function or array of functions to attach.\n */\nvideojs.hook = function (type, fn) {\n videojs.hooks(type, fn);\n};\n\n/**\n * Add a function hook that will only run once to a specific videojs lifecycle.\n *\n * @param {string} type\n * the lifecycle to hook the function to.\n *\n * @param {Function|Function[]}\n * The function or array of functions to attach.\n */\nvideojs.hookOnce = function (type, fn) {\n videojs.hooks(type, [].concat(fn).map(function (original) {\n var wrapper = function wrapper() {\n videojs.removeHook(type, wrapper);\n return original.apply(undefined, arguments);\n };\n\n return wrapper;\n }));\n};\n\n/**\n * Remove a hook from a specific videojs lifecycle.\n *\n * @param {string} type\n * the lifecycle that the function hooked to\n *\n * @param {Function} fn\n * The hooked function to remove\n *\n * @return {boolean}\n * The function that was removed or undef\n */\nvideojs.removeHook = function (type, fn) {\n var index = videojs.hooks(type).indexOf(fn);\n\n if (index <= -1) {\n return false;\n }\n\n videojs.hooks_[type] = videojs.hooks_[type].slice();\n videojs.hooks_[type].splice(index, 1);\n\n return true;\n};\n\n// Add default styles\nif (window.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {\n var style = $('.vjs-styles-defaults');\n\n if (!style) {\n style = createStyleElement('vjs-styles-defaults');\n var head = $('head');\n\n if (head) {\n head.insertBefore(style, head.firstChild);\n }\n setTextContent(style, '\\n .video-js {\\n width: 300px;\\n height: 150px;\\n }\\n\\n .vjs-fluid {\\n padding-top: 56.25%\\n }\\n ');\n }\n}\n\n// Run Auto-load players\n// You have to wait at least once in case this script is loaded after your\n// video in the DOM (weird behavior only with minified version)\nautoSetupTimeout(1, videojs);\n\n/**\n * Current software version. Follows semver.\n *\n * @type {string}\n */\nvideojs.VERSION = version;\n\n/**\n * The global options object. These are the settings that take effect\n * if no overrides are specified when the player is created.\n *\n * @type {Object}\n */\nvideojs.options = Player.prototype.options_;\n\n/**\n * Get an object with the currently created players, keyed by player ID\n *\n * @return {Object}\n * The created players\n */\nvideojs.getPlayers = function () {\n return Player.players;\n};\n\n/**\n * Get a single player based on an ID or DOM element.\n *\n * This is useful if you want to check if an element or ID has an associated\n * Video.js player, but not create one if it doesn't.\n *\n * @param {string|Element} id\n * An HTML element - `<video>`, `<audio>`, or `<video-js>` -\n * or a string matching the `id` of such an element.\n *\n * @returns {Player|undefined}\n * A player instance or `undefined` if there is no player instance\n * matching the argument.\n */\nvideojs.getPlayer = function (id) {\n var players = Player.players;\n var tag = void 0;\n\n if (typeof id === 'string') {\n var nId = normalizeId(id);\n var player = players[nId];\n\n if (player) {\n return player;\n }\n\n tag = $('#' + nId);\n } else {\n tag = id;\n }\n\n if (isEl(tag)) {\n var _tag = tag,\n _player = _tag.player,\n playerId = _tag.playerId;\n\n // Element may have a `player` property referring to an already created\n // player instance. If so, return that.\n\n if (_player || players[playerId]) {\n return _player || players[playerId];\n }\n }\n};\n\n/**\n * Returns an array of all current players.\n *\n * @return {Array}\n * An array of all players. The array will be in the order that\n * `Object.keys` provides, which could potentially vary between\n * JavaScript engines.\n *\n */\nvideojs.getAllPlayers = function () {\n return (\n\n // Disposed players leave a key with a `null` value, so we need to make sure\n // we filter those out.\n Object.keys(Player.players).map(function (k) {\n return Player.players[k];\n }).filter(Boolean)\n );\n};\n\n/**\n * Expose players object.\n *\n * @memberOf videojs\n * @property {Object} players\n */\nvideojs.players = Player.players;\n\n/**\n * Get a component class object by name\n *\n * @borrows Component.getComponent as videojs.getComponent\n */\nvideojs.getComponent = Component.getComponent;\n\n/**\n * Register a component so it can referred to by name. Used when adding to other\n * components, either through addChild `component.addChild('myComponent')` or through\n * default children options `{ children: ['myComponent'] }`.\n *\n * > NOTE: You could also just initialize the component before adding.\n * `component.addChild(new MyComponent());`\n *\n * @param {string} name\n * The class name of the component\n *\n * @param {Component} comp\n * The component class\n *\n * @return {Component}\n * The newly registered component\n */\nvideojs.registerComponent = function (name$$1, comp) {\n if (Tech.isTech(comp)) {\n log$1.warn('The ' + name$$1 + ' tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)');\n }\n\n Component.registerComponent.call(Component, name$$1, comp);\n};\n\n/**\n * Get a Tech class object by name\n *\n * @borrows Tech.getTech as videojs.getTech\n */\nvideojs.getTech = Tech.getTech;\n\n/**\n * Register a Tech so it can referred to by name.\n * This is used in the tech order for the player.\n *\n * @borrows Tech.registerTech as videojs.registerTech\n */\nvideojs.registerTech = Tech.registerTech;\n\n/**\n * Register a middleware to a source type.\n *\n * @param {String} type A string representing a MIME type.\n * @param {function(player):object} middleware A middleware factory that takes a player.\n */\nvideojs.use = use;\n\n/**\n * An object that can be returned by a middleware to signify\n * that the middleware is being terminated.\n *\n * @type {object}\n * @memberOf {videojs}\n * @property {object} middleware.TERMINATOR\n */\n// Object.defineProperty is not available in IE8\nif (!IS_IE8 && Object.defineProperty) {\n Object.defineProperty(videojs, 'middleware', {\n value: {},\n writeable: false,\n enumerable: true\n });\n\n Object.defineProperty(videojs.middleware, 'TERMINATOR', {\n value: TERMINATOR,\n writeable: false,\n enumerable: true\n });\n} else {\n videojs.middleware = { TERMINATOR: TERMINATOR };\n}\n\n/**\n * A suite of browser and device tests from {@link browser}.\n *\n * @type {Object}\n * @private\n */\nvideojs.browser = browser;\n\n/**\n * Whether or not the browser supports touch events. Included for backward\n * compatibility with 4.x, but deprecated. Use `videojs.browser.TOUCH_ENABLED`\n * instead going forward.\n *\n * @deprecated since version 5.0\n * @type {boolean}\n */\nvideojs.TOUCH_ENABLED = TOUCH_ENABLED;\n\n/**\n * Subclass an existing class\n * Mimics ES6 subclassing with the `extend` keyword\n *\n * @borrows extend:extendFn as videojs.extend\n */\nvideojs.extend = extendFn;\n\n/**\n * Merge two options objects recursively\n * Performs a deep merge like lodash.merge but **only merges plain objects**\n * (not arrays, elements, anything else)\n * Other values will be copied directly from the second object.\n *\n * @borrows merge-options:mergeOptions as videojs.mergeOptions\n */\nvideojs.mergeOptions = mergeOptions;\n\n/**\n * Change the context (this) of a function\n *\n * > NOTE: as of v5.0 we require an ES5 shim, so you should use the native\n * `function() {}.bind(newContext);` instead of this.\n *\n * @borrows fn:bind as videojs.bind\n */\nvideojs.bind = bind;\n\n/**\n * Register a Video.js plugin.\n *\n * @borrows plugin:registerPlugin as videojs.registerPlugin\n * @method registerPlugin\n *\n * @param {string} name\n * The name of the plugin to be registered. Must be a string and\n * must not match an existing plugin or a method on the `Player`\n * prototype.\n *\n * @param {Function} plugin\n * A sub-class of `Plugin` or a function for basic plugins.\n *\n * @return {Function}\n * For advanced plugins, a factory function for that plugin. For\n * basic plugins, a wrapper function that initializes the plugin.\n */\nvideojs.registerPlugin = Plugin.registerPlugin;\n\n/**\n * Deregister a Video.js plugin.\n *\n * @borrows plugin:deregisterPlugin as videojs.deregisterPlugin\n * @method deregisterPlugin\n *\n * @param {string} name\n * The name of the plugin to be deregistered. Must be a string and\n * must match an existing plugin or a method on the `Player`\n * prototype.\n *\n */\nvideojs.deregisterPlugin = Plugin.deregisterPlugin;\n\n/**\n * Deprecated method to register a plugin with Video.js\n *\n * @deprecated\n * videojs.plugin() is deprecated; use videojs.registerPlugin() instead\n *\n * @param {string} name\n * The plugin name\n *\n * @param {Plugin|Function} plugin\n * The plugin sub-class or function\n */\nvideojs.plugin = function (name$$1, plugin) {\n log$1.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');\n return Plugin.registerPlugin(name$$1, plugin);\n};\n\n/**\n * Gets an object containing multiple Video.js plugins.\n *\n * @param {Array} [names]\n * If provided, should be an array of plugin names. Defaults to _all_\n * plugin names.\n *\n * @return {Object|undefined}\n * An object containing plugin(s) associated with their name(s) or\n * `undefined` if no matching plugins exist).\n */\nvideojs.getPlugins = Plugin.getPlugins;\n\n/**\n * Gets a plugin by name if it exists.\n *\n * @param {string} name\n * The name of a plugin.\n *\n * @return {Function|undefined}\n * The plugin (or `undefined`).\n */\nvideojs.getPlugin = Plugin.getPlugin;\n\n/**\n * Gets a plugin's version, if available\n *\n * @param {string} name\n * The name of a plugin.\n *\n * @return {string}\n * The plugin's version or an empty string.\n */\nvideojs.getPluginVersion = Plugin.getPluginVersion;\n\n/**\n * Adding languages so that they're available to all players.\n * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`\n *\n * @param {string} code\n * The language code or dictionary property\n *\n * @param {Object} data\n * The data values to be translated\n *\n * @return {Object}\n * The resulting language dictionary object\n */\nvideojs.addLanguage = function (code, data) {\n var _mergeOptions;\n\n code = ('' + code).toLowerCase();\n\n videojs.options.languages = mergeOptions(videojs.options.languages, (_mergeOptions = {}, _mergeOptions[code] = data, _mergeOptions));\n\n return videojs.options.languages[code];\n};\n\n/**\n * Log messages\n *\n * @borrows log:log as videojs.log\n */\nvideojs.log = log$1;\n\n/**\n * Creates an emulated TimeRange object.\n *\n * @borrows time-ranges:createTimeRanges as videojs.createTimeRange\n */\n/**\n * @borrows time-ranges:createTimeRanges as videojs.createTimeRanges\n */\nvideojs.createTimeRange = videojs.createTimeRanges = createTimeRanges;\n\n/**\n * Format seconds as a time string, H:MM:SS or M:SS\n * Supplying a guide (in seconds) will force a number of leading zeros\n * to cover the length of the guide\n *\n * @borrows format-time:formatTime as videojs.formatTime\n */\nvideojs.formatTime = formatTime;\n\n/**\n * Replaces format-time with a custom implementation, to be used in place of the default.\n *\n * @borrows format-time:setFormatTime as videojs.setFormatTime\n *\n * @method setFormatTime\n *\n * @param {Function} customFn\n * A custom format-time function which will be called with the current time and guide (in seconds) as arguments.\n * Passed fn should return a string.\n */\nvideojs.setFormatTime = setFormatTime;\n\n/**\n * Resets format-time to the default implementation.\n *\n * @borrows format-time:resetFormatTime as videojs.resetFormatTime\n *\n * @method resetFormatTime\n */\nvideojs.resetFormatTime = resetFormatTime;\n\n/**\n * Resolve and parse the elements of a URL\n *\n * @borrows url:parseUrl as videojs.parseUrl\n *\n */\nvideojs.parseUrl = parseUrl;\n\n/**\n * Returns whether the url passed is a cross domain request or not.\n *\n * @borrows url:isCrossOrigin as videojs.isCrossOrigin\n */\nvideojs.isCrossOrigin = isCrossOrigin;\n\n/**\n * Event target class.\n *\n * @borrows EventTarget as videojs.EventTarget\n */\nvideojs.EventTarget = EventTarget;\n\n/**\n * Add an event listener to element\n * It stores the handler function in a separate cache object\n * and adds a generic handler to the element's event,\n * along with a unique id (guid) to the element.\n *\n * @borrows events:on as videojs.on\n */\nvideojs.on = on;\n\n/**\n * Trigger a listener only once for an event\n *\n * @borrows events:one as videojs.one\n */\nvideojs.one = one;\n\n/**\n * Removes event listeners from an element\n *\n * @borrows events:off as videojs.off\n */\nvideojs.off = off;\n\n/**\n * Trigger an event for an element\n *\n * @borrows events:trigger as videojs.trigger\n */\nvideojs.trigger = trigger;\n\n/**\n * A cross-browser XMLHttpRequest wrapper. Here's a simple example:\n *\n * @param {Object} options\n * settings for the request.\n *\n * @return {XMLHttpRequest|XDomainRequest}\n * The request object.\n *\n * @see https://github.com/Raynos/xhr\n */\nvideojs.xhr = xhr;\n\n/**\n * TextTrack class\n *\n * @borrows TextTrack as videojs.TextTrack\n */\nvideojs.TextTrack = TextTrack;\n\n/**\n * export the AudioTrack class so that source handlers can create\n * AudioTracks and then add them to the players AudioTrackList\n *\n * @borrows AudioTrack as videojs.AudioTrack\n */\nvideojs.AudioTrack = AudioTrack;\n\n/**\n * export the VideoTrack class so that source handlers can create\n * VideoTracks and then add them to the players VideoTrackList\n *\n * @borrows VideoTrack as videojs.VideoTrack\n */\nvideojs.VideoTrack = VideoTrack;\n\n/**\n * Determines, via duck typing, whether or not a value is a DOM element.\n *\n * @borrows dom:isEl as videojs.isEl\n * @deprecated Use videojs.dom.isEl() instead\n */\n\n/**\n * Determines, via duck typing, whether or not a value is a text node.\n *\n * @borrows dom:isTextNode as videojs.isTextNode\n * @deprecated Use videojs.dom.isTextNode() instead\n */\n\n/**\n * Creates an element and applies properties.\n *\n * @borrows dom:createEl as videojs.createEl\n * @deprecated Use videojs.dom.createEl() instead\n */\n\n/**\n * Check if an element has a CSS class\n *\n * @borrows dom:hasElClass as videojs.hasClass\n * @deprecated Use videojs.dom.hasClass() instead\n */\n\n/**\n * Add a CSS class name to an element\n *\n * @borrows dom:addElClass as videojs.addClass\n * @deprecated Use videojs.dom.addClass() instead\n */\n\n/**\n * Remove a CSS class name from an element\n *\n * @borrows dom:removeElClass as videojs.removeClass\n * @deprecated Use videojs.dom.removeClass() instead\n */\n\n/**\n * Adds or removes a CSS class name on an element depending on an optional\n * condition or the presence/absence of the class name.\n *\n * @borrows dom:toggleElClass as videojs.toggleClass\n * @deprecated Use videojs.dom.toggleClass() instead\n */\n\n/**\n * Apply attributes to an HTML element.\n *\n * @borrows dom:setElAttributes as videojs.setAttribute\n * @deprecated Use videojs.dom.setAttributes() instead\n */\n\n/**\n * Get an element's attribute values, as defined on the HTML tag\n * Attributes are not the same as properties. They're defined on the tag\n * or with setAttribute (which shouldn't be used with HTML)\n * This will return true or false for boolean attributes.\n *\n * @borrows dom:getElAttributes as videojs.getAttributes\n * @deprecated Use videojs.dom.getAttributes() instead\n */\n\n/**\n * Empties the contents of an element.\n *\n * @borrows dom:emptyEl as videojs.emptyEl\n * @deprecated Use videojs.dom.emptyEl() instead\n */\n\n/**\n * Normalizes and appends content to an element.\n *\n * The content for an element can be passed in multiple types and\n * combinations, whose behavior is as follows:\n *\n * - String\n * Normalized into a text node.\n *\n * - Element, TextNode\n * Passed through.\n *\n * - Array\n * A one-dimensional array of strings, elements, nodes, or functions (which\n * return single strings, elements, or nodes).\n *\n * - Function\n * If the sole argument, is expected to produce a string, element,\n * node, or array.\n *\n * @borrows dom:appendContents as videojs.appendContet\n * @deprecated Use videojs.dom.appendContent() instead\n */\n\n/**\n * Normalizes and inserts content into an element; this is identical to\n * `appendContent()`, except it empties the element first.\n *\n * The content for an element can be passed in multiple types and\n * combinations, whose behavior is as follows:\n *\n * - String\n * Normalized into a text node.\n *\n * - Element, TextNode\n * Passed through.\n *\n * - Array\n * A one-dimensional array of strings, elements, nodes, or functions (which\n * return single strings, elements, or nodes).\n *\n * - Function\n * If the sole argument, is expected to produce a string, element,\n * node, or array.\n *\n * @borrows dom:insertContent as videojs.insertContent\n * @deprecated Use videojs.dom.insertContent() instead\n */\n['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(function (k) {\n videojs[k] = function () {\n log$1.warn('videojs.' + k + '() is deprecated; use videojs.dom.' + k + '() instead');\n return Dom[k].apply(null, arguments);\n };\n});\n\n/**\n * A safe getComputedStyle with an IE8 fallback.\n *\n * This is because in Firefox, if the player is loaded in an iframe with `display:none`,\n * then `getComputedStyle` returns `null`, so, we do a null-check to make sure\n * that the player doesn't break in these cases.\n * See https://bugzilla.mozilla.org/show_bug.cgi?id=548397 for more details.\n *\n * @borrows computed-style:computedStyle as videojs.computedStyle\n */\nvideojs.computedStyle = computedStyle;\n\n/**\n * Export the Dom utilities for use in external plugins\n * and Tech's\n */\nvideojs.dom = Dom;\n\n/**\n * Export the Url utilities for use in external plugins\n * and Tech's\n */\nvideojs.url = Url;\n\nmodule.exports = videojs;\n","/**\n * Copyright 2013 vtt.js Contributors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n// Default exports for Node. Export the extended versions of VTTCue and\n// VTTRegion in Node since we likely want the capability to convert back and\n// forth between JSON. If we don't then it's not that big of a deal since we're\n// off browser.\n\nvar window = require('global/window');\n\nvar vttjs = module.exports = {\n WebVTT: require(\"./vtt.js\"),\n VTTCue: require(\"./vttcue.js\"),\n VTTRegion: require(\"./vttregion.js\")\n};\n\nwindow.vttjs = vttjs;\nwindow.WebVTT = vttjs.WebVTT;\n\nvar cueShim = vttjs.VTTCue;\nvar regionShim = vttjs.VTTRegion;\nvar nativeVTTCue = window.VTTCue;\nvar nativeVTTRegion = window.VTTRegion;\n\nvttjs.shim = function() {\n window.VTTCue = cueShim;\n window.VTTRegion = regionShim;\n};\n\nvttjs.restore = function() {\n window.VTTCue = nativeVTTCue;\n window.VTTRegion = nativeVTTRegion;\n};\n\nif (!window.VTTCue) {\n vttjs.shim();\n}\n","/**\n * Copyright 2013 vtt.js Contributors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */\n/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */\nvar _objCreate = Object.create || (function() {\n function F() {}\n return function(o) {\n if (arguments.length !== 1) {\n throw new Error('Object.create shim only accepts one parameter.');\n }\n F.prototype = o;\n return new F();\n };\n})();\n\n// Creates a new ParserError object from an errorData object. The errorData\n// object should have default code and message properties. The default message\n// property can be overriden by passing in a message parameter.\n// See ParsingError.Errors below for acceptable errors.\nfunction ParsingError(errorData, message) {\n this.name = \"ParsingError\";\n this.code = errorData.code;\n this.message = message || errorData.message;\n}\nParsingError.prototype = _objCreate(Error.prototype);\nParsingError.prototype.constructor = ParsingError;\n\n// ParsingError metadata for acceptable ParsingErrors.\nParsingError.Errors = {\n BadSignature: {\n code: 0,\n message: \"Malformed WebVTT signature.\"\n },\n BadTimeStamp: {\n code: 1,\n message: \"Malformed time stamp.\"\n }\n};\n\n// Try to parse input as a time stamp.\nfunction parseTimeStamp(input) {\n\n function computeSeconds(h, m, s, f) {\n return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000;\n }\n\n var m = input.match(/^(\\d+):(\\d{2})(:\\d{2})?\\.(\\d{3})/);\n if (!m) {\n return null;\n }\n\n if (m[3]) {\n // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds]\n return computeSeconds(m[1], m[2], m[3].replace(\":\", \"\"), m[4]);\n } else if (m[1] > 59) {\n // Timestamp takes the form of [hours]:[minutes].[milliseconds]\n // First position is hours as it's over 59.\n return computeSeconds(m[1], m[2], 0, m[4]);\n } else {\n // Timestamp takes the form of [minutes]:[seconds].[milliseconds]\n return computeSeconds(0, m[1], m[2], m[4]);\n }\n}\n\n// A settings object holds key/value pairs and will ignore anything but the first\n// assignment to a specific key.\nfunction Settings() {\n this.values = _objCreate(null);\n}\n\nSettings.prototype = {\n // Only accept the first assignment to any key.\n set: function(k, v) {\n if (!this.get(k) && v !== \"\") {\n this.values[k] = v;\n }\n },\n // Return the value for a key, or a default value.\n // If 'defaultKey' is passed then 'dflt' is assumed to be an object with\n // a number of possible default values as properties where 'defaultKey' is\n // the key of the property that will be chosen; otherwise it's assumed to be\n // a single value.\n get: function(k, dflt, defaultKey) {\n if (defaultKey) {\n return this.has(k) ? this.values[k] : dflt[defaultKey];\n }\n return this.has(k) ? this.values[k] : dflt;\n },\n // Check whether we have a value for a key.\n has: function(k) {\n return k in this.values;\n },\n // Accept a setting if its one of the given alternatives.\n alt: function(k, v, a) {\n for (var n = 0; n < a.length; ++n) {\n if (v === a[n]) {\n this.set(k, v);\n break;\n }\n }\n },\n // Accept a setting if its a valid (signed) integer.\n integer: function(k, v) {\n if (/^-?\\d+$/.test(v)) { // integer\n this.set(k, parseInt(v, 10));\n }\n },\n // Accept a setting if its a valid percentage.\n percent: function(k, v) {\n var m;\n if ((m = v.match(/^([\\d]{1,3})(\\.[\\d]*)?%$/))) {\n v = parseFloat(v);\n if (v >= 0 && v <= 100) {\n this.set(k, v);\n return true;\n }\n }\n return false;\n }\n};\n\n// Helper function to parse input into groups separated by 'groupDelim', and\n// interprete each group as a key/value pair separated by 'keyValueDelim'.\nfunction parseOptions(input, callback, keyValueDelim, groupDelim) {\n var groups = groupDelim ? input.split(groupDelim) : [input];\n for (var i in groups) {\n if (typeof groups[i] !== \"string\") {\n continue;\n }\n var kv = groups[i].split(keyValueDelim);\n if (kv.length !== 2) {\n continue;\n }\n var k = kv[0];\n var v = kv[1];\n callback(k, v);\n }\n}\n\nfunction parseCue(input, cue, regionList) {\n // Remember the original input if we need to throw an error.\n var oInput = input;\n // 4.1 WebVTT timestamp\n function consumeTimeStamp() {\n var ts = parseTimeStamp(input);\n if (ts === null) {\n throw new ParsingError(ParsingError.Errors.BadTimeStamp,\n \"Malformed timestamp: \" + oInput);\n }\n // Remove time stamp from input.\n input = input.replace(/^[^\\sa-zA-Z-]+/, \"\");\n return ts;\n }\n\n // 4.4.2 WebVTT cue settings\n function consumeCueSettings(input, cue) {\n var settings = new Settings();\n\n parseOptions(input, function (k, v) {\n switch (k) {\n case \"region\":\n // Find the last region we parsed with the same region id.\n for (var i = regionList.length - 1; i >= 0; i--) {\n if (regionList[i].id === v) {\n settings.set(k, regionList[i].region);\n break;\n }\n }\n break;\n case \"vertical\":\n settings.alt(k, v, [\"rl\", \"lr\"]);\n break;\n case \"line\":\n var vals = v.split(\",\"),\n vals0 = vals[0];\n settings.integer(k, vals0);\n settings.percent(k, vals0) ? settings.set(\"snapToLines\", false) : null;\n settings.alt(k, vals0, [\"auto\"]);\n if (vals.length === 2) {\n settings.alt(\"lineAlign\", vals[1], [\"start\", \"middle\", \"end\"]);\n }\n break;\n case \"position\":\n vals = v.split(\",\");\n settings.percent(k, vals[0]);\n if (vals.length === 2) {\n settings.alt(\"positionAlign\", vals[1], [\"start\", \"middle\", \"end\"]);\n }\n break;\n case \"size\":\n settings.percent(k, v);\n break;\n case \"align\":\n settings.alt(k, v, [\"start\", \"middle\", \"end\", \"left\", \"right\"]);\n break;\n }\n }, /:/, /\\s/);\n\n // Apply default values for any missing fields.\n cue.region = settings.get(\"region\", null);\n cue.vertical = settings.get(\"vertical\", \"\");\n cue.line = settings.get(\"line\", \"auto\");\n cue.lineAlign = settings.get(\"lineAlign\", \"start\");\n cue.snapToLines = settings.get(\"snapToLines\", true);\n cue.size = settings.get(\"size\", 100);\n cue.align = settings.get(\"align\", \"middle\");\n cue.position = settings.get(\"position\", {\n start: 0,\n left: 0,\n middle: 50,\n end: 100,\n right: 100\n }, cue.align);\n cue.positionAlign = settings.get(\"positionAlign\", {\n start: \"start\",\n left: \"start\",\n middle: \"middle\",\n end: \"end\",\n right: \"end\"\n }, cue.align);\n }\n\n function skipWhitespace() {\n input = input.replace(/^\\s+/, \"\");\n }\n\n // 4.1 WebVTT cue timings.\n skipWhitespace();\n cue.startTime = consumeTimeStamp(); // (1) collect cue start time\n skipWhitespace();\n if (input.substr(0, 3) !== \"-->\") { // (3) next characters must match \"-->\"\n throw new ParsingError(ParsingError.Errors.BadTimeStamp,\n \"Malformed time stamp (time stamps must be separated by '-->'): \" +\n oInput);\n }\n input = input.substr(3);\n skipWhitespace();\n cue.endTime = consumeTimeStamp(); // (5) collect cue end time\n\n // 4.1 WebVTT cue settings list.\n skipWhitespace();\n consumeCueSettings(input, cue);\n}\n\nvar ESCAPE = {\n \"&\": \"&\",\n \"<\": \"<\",\n \">\": \">\",\n \"‎\": \"\\u200e\",\n \"‏\": \"\\u200f\",\n \" \": \"\\u00a0\"\n};\n\nvar TAG_NAME = {\n c: \"span\",\n i: \"i\",\n b: \"b\",\n u: \"u\",\n ruby: \"ruby\",\n rt: \"rt\",\n v: \"span\",\n lang: \"span\"\n};\n\nvar TAG_ANNOTATION = {\n v: \"title\",\n lang: \"lang\"\n};\n\nvar NEEDS_PARENT = {\n rt: \"ruby\"\n};\n\n// Parse content into a document fragment.\nfunction parseContent(window, input) {\n function nextToken() {\n // Check for end-of-string.\n if (!input) {\n return null;\n }\n\n // Consume 'n' characters from the input.\n function consume(result) {\n input = input.substr(result.length);\n return result;\n }\n\n var m = input.match(/^([^<]*)(<[^>]*>?)?/);\n // If there is some text before the next tag, return it, otherwise return\n // the tag.\n return consume(m[1] ? m[1] : m[2]);\n }\n\n // Unescape a string 's'.\n function unescape1(e) {\n return ESCAPE[e];\n }\n function unescape(s) {\n while ((m = s.match(/&(amp|lt|gt|lrm|rlm|nbsp);/))) {\n s = s.replace(m[0], unescape1);\n }\n return s;\n }\n\n function shouldAdd(current, element) {\n return !NEEDS_PARENT[element.localName] ||\n NEEDS_PARENT[element.localName] === current.localName;\n }\n\n // Create an element for this tag.\n function createElement(type, annotation) {\n var tagName = TAG_NAME[type];\n if (!tagName) {\n return null;\n }\n var element = window.document.createElement(tagName);\n element.localName = tagName;\n var name = TAG_ANNOTATION[type];\n if (name && annotation) {\n element[name] = annotation.trim();\n }\n return element;\n }\n\n var rootDiv = window.document.createElement(\"div\"),\n current = rootDiv,\n t,\n tagStack = [];\n\n while ((t = nextToken()) !== null) {\n if (t[0] === '<') {\n if (t[1] === \"/\") {\n // If the closing tag matches, move back up to the parent node.\n if (tagStack.length &&\n tagStack[tagStack.length - 1] === t.substr(2).replace(\">\", \"\")) {\n tagStack.pop();\n current = current.parentNode;\n }\n // Otherwise just ignore the end tag.\n continue;\n }\n var ts = parseTimeStamp(t.substr(1, t.length - 2));\n var node;\n if (ts) {\n // Timestamps are lead nodes as well.\n node = window.document.createProcessingInstruction(\"timestamp\", ts);\n current.appendChild(node);\n continue;\n }\n var m = t.match(/^<([^.\\s/0-9>]+)(\\.[^\\s\\\\>]+)?([^>\\\\]+)?(\\\\?)>?$/);\n // If we can't parse the tag, skip to the next tag.\n if (!m) {\n continue;\n }\n // Try to construct an element, and ignore the tag if we couldn't.\n node = createElement(m[1], m[3]);\n if (!node) {\n continue;\n }\n // Determine if the tag should be added based on the context of where it\n // is placed in the cuetext.\n if (!shouldAdd(current, node)) {\n continue;\n }\n // Set the class list (as a list of classes, separated by space).\n if (m[2]) {\n node.className = m[2].substr(1).replace('.', ' ');\n }\n // Append the node to the current node, and enter the scope of the new\n // node.\n tagStack.push(m[1]);\n current.appendChild(node);\n current = node;\n continue;\n }\n\n // Text nodes are leaf nodes.\n current.appendChild(window.document.createTextNode(unescape(t)));\n }\n\n return rootDiv;\n}\n\n// This is a list of all the Unicode characters that have a strong\n// right-to-left category. What this means is that these characters are\n// written right-to-left for sure. It was generated by pulling all the strong\n// right-to-left characters out of the Unicode data table. That table can\n// found at: http://www.unicode.org/Public/UNIDATA/UnicodeData.txt\nvar strongRTLRanges = [[0x5be, 0x5be], [0x5c0, 0x5c0], [0x5c3, 0x5c3], [0x5c6, 0x5c6],\n [0x5d0, 0x5ea], [0x5f0, 0x5f4], [0x608, 0x608], [0x60b, 0x60b], [0x60d, 0x60d],\n [0x61b, 0x61b], [0x61e, 0x64a], [0x66d, 0x66f], [0x671, 0x6d5], [0x6e5, 0x6e6],\n [0x6ee, 0x6ef], [0x6fa, 0x70d], [0x70f, 0x710], [0x712, 0x72f], [0x74d, 0x7a5],\n [0x7b1, 0x7b1], [0x7c0, 0x7ea], [0x7f4, 0x7f5], [0x7fa, 0x7fa], [0x800, 0x815],\n [0x81a, 0x81a], [0x824, 0x824], [0x828, 0x828], [0x830, 0x83e], [0x840, 0x858],\n [0x85e, 0x85e], [0x8a0, 0x8a0], [0x8a2, 0x8ac], [0x200f, 0x200f],\n [0xfb1d, 0xfb1d], [0xfb1f, 0xfb28], [0xfb2a, 0xfb36], [0xfb38, 0xfb3c],\n [0xfb3e, 0xfb3e], [0xfb40, 0xfb41], [0xfb43, 0xfb44], [0xfb46, 0xfbc1],\n [0xfbd3, 0xfd3d], [0xfd50, 0xfd8f], [0xfd92, 0xfdc7], [0xfdf0, 0xfdfc],\n [0xfe70, 0xfe74], [0xfe76, 0xfefc], [0x10800, 0x10805], [0x10808, 0x10808],\n [0x1080a, 0x10835], [0x10837, 0x10838], [0x1083c, 0x1083c], [0x1083f, 0x10855],\n [0x10857, 0x1085f], [0x10900, 0x1091b], [0x10920, 0x10939], [0x1093f, 0x1093f],\n [0x10980, 0x109b7], [0x109be, 0x109bf], [0x10a00, 0x10a00], [0x10a10, 0x10a13],\n [0x10a15, 0x10a17], [0x10a19, 0x10a33], [0x10a40, 0x10a47], [0x10a50, 0x10a58],\n [0x10a60, 0x10a7f], [0x10b00, 0x10b35], [0x10b40, 0x10b55], [0x10b58, 0x10b72],\n [0x10b78, 0x10b7f], [0x10c00, 0x10c48], [0x1ee00, 0x1ee03], [0x1ee05, 0x1ee1f],\n [0x1ee21, 0x1ee22], [0x1ee24, 0x1ee24], [0x1ee27, 0x1ee27], [0x1ee29, 0x1ee32],\n [0x1ee34, 0x1ee37], [0x1ee39, 0x1ee39], [0x1ee3b, 0x1ee3b], [0x1ee42, 0x1ee42],\n [0x1ee47, 0x1ee47], [0x1ee49, 0x1ee49], [0x1ee4b, 0x1ee4b], [0x1ee4d, 0x1ee4f],\n [0x1ee51, 0x1ee52], [0x1ee54, 0x1ee54], [0x1ee57, 0x1ee57], [0x1ee59, 0x1ee59],\n [0x1ee5b, 0x1ee5b], [0x1ee5d, 0x1ee5d], [0x1ee5f, 0x1ee5f], [0x1ee61, 0x1ee62],\n [0x1ee64, 0x1ee64], [0x1ee67, 0x1ee6a], [0x1ee6c, 0x1ee72], [0x1ee74, 0x1ee77],\n [0x1ee79, 0x1ee7c], [0x1ee7e, 0x1ee7e], [0x1ee80, 0x1ee89], [0x1ee8b, 0x1ee9b],\n [0x1eea1, 0x1eea3], [0x1eea5, 0x1eea9], [0x1eeab, 0x1eebb], [0x10fffd, 0x10fffd]];\n\nfunction isStrongRTLChar(charCode) {\n for (var i = 0; i < strongRTLRanges.length; i++) {\n var currentRange = strongRTLRanges[i];\n if (charCode >= currentRange[0] && charCode <= currentRange[1]) {\n return true;\n }\n }\n\n return false;\n}\n\nfunction determineBidi(cueDiv) {\n var nodeStack = [],\n text = \"\",\n charCode;\n\n if (!cueDiv || !cueDiv.childNodes) {\n return \"ltr\";\n }\n\n function pushNodes(nodeStack, node) {\n for (var i = node.childNodes.length - 1; i >= 0; i--) {\n nodeStack.push(node.childNodes[i]);\n }\n }\n\n function nextTextNode(nodeStack) {\n if (!nodeStack || !nodeStack.length) {\n return null;\n }\n\n var node = nodeStack.pop(),\n text = node.textContent || node.innerText;\n if (text) {\n // TODO: This should match all unicode type B characters (paragraph\n // separator characters). See issue #115.\n var m = text.match(/^.*(\\n|\\r)/);\n if (m) {\n nodeStack.length = 0;\n return m[0];\n }\n return text;\n }\n if (node.tagName === \"ruby\") {\n return nextTextNode(nodeStack);\n }\n if (node.childNodes) {\n pushNodes(nodeStack, node);\n return nextTextNode(nodeStack);\n }\n }\n\n pushNodes(nodeStack, cueDiv);\n while ((text = nextTextNode(nodeStack))) {\n for (var i = 0; i < text.length; i++) {\n charCode = text.charCodeAt(i);\n if (isStrongRTLChar(charCode)) {\n return \"rtl\";\n }\n }\n }\n return \"ltr\";\n}\n\nfunction computeLinePos(cue) {\n if (typeof cue.line === \"number\" &&\n (cue.snapToLines || (cue.line >= 0 && cue.line <= 100))) {\n return cue.line;\n }\n if (!cue.track || !cue.track.textTrackList ||\n !cue.track.textTrackList.mediaElement) {\n return -1;\n }\n var track = cue.track,\n trackList = track.textTrackList,\n count = 0;\n for (var i = 0; i < trackList.length && trackList[i] !== track; i++) {\n if (trackList[i].mode === \"showing\") {\n count++;\n }\n }\n return ++count * -1;\n}\n\nfunction StyleBox() {\n}\n\n// Apply styles to a div. If there is no div passed then it defaults to the\n// div on 'this'.\nStyleBox.prototype.applyStyles = function(styles, div) {\n div = div || this.div;\n for (var prop in styles) {\n if (styles.hasOwnProperty(prop)) {\n div.style[prop] = styles[prop];\n }\n }\n};\n\nStyleBox.prototype.formatStyle = function(val, unit) {\n return val === 0 ? 0 : val + unit;\n};\n\n// Constructs the computed display state of the cue (a div). Places the div\n// into the overlay which should be a block level element (usually a div).\nfunction CueStyleBox(window, cue, styleOptions) {\n var isIE8 = (/MSIE\\s8\\.0/).test(navigator.userAgent);\n var color = \"rgba(255, 255, 255, 1)\";\n var backgroundColor = \"rgba(0, 0, 0, 0.8)\";\n\n if (isIE8) {\n color = \"rgb(255, 255, 255)\";\n backgroundColor = \"rgb(0, 0, 0)\";\n }\n\n StyleBox.call(this);\n this.cue = cue;\n\n // Parse our cue's text into a DOM tree rooted at 'cueDiv'. This div will\n // have inline positioning and will function as the cue background box.\n this.cueDiv = parseContent(window, cue.text);\n var styles = {\n color: color,\n backgroundColor: backgroundColor,\n position: \"relative\",\n left: 0,\n right: 0,\n top: 0,\n bottom: 0,\n display: \"inline\"\n };\n\n if (!isIE8) {\n styles.writingMode = cue.vertical === \"\" ? \"horizontal-tb\"\n : cue.vertical === \"lr\" ? \"vertical-lr\"\n : \"vertical-rl\";\n styles.unicodeBidi = \"plaintext\";\n }\n this.applyStyles(styles, this.cueDiv);\n\n // Create an absolutely positioned div that will be used to position the cue\n // div. Note, all WebVTT cue-setting alignments are equivalent to the CSS\n // mirrors of them except \"middle\" which is \"center\" in CSS.\n this.div = window.document.createElement(\"div\");\n styles = {\n textAlign: cue.align === \"middle\" ? \"center\" : cue.align,\n font: styleOptions.font,\n whiteSpace: \"pre-line\",\n position: \"absolute\"\n };\n\n if (!isIE8) {\n styles.direction = determineBidi(this.cueDiv);\n styles.writingMode = cue.vertical === \"\" ? \"horizontal-tb\"\n : cue.vertical === \"lr\" ? \"vertical-lr\"\n : \"vertical-rl\".\n stylesunicodeBidi = \"plaintext\";\n }\n\n this.applyStyles(styles);\n\n this.div.appendChild(this.cueDiv);\n\n // Calculate the distance from the reference edge of the viewport to the text\n // position of the cue box. The reference edge will be resolved later when\n // the box orientation styles are applied.\n var textPos = 0;\n switch (cue.positionAlign) {\n case \"start\":\n textPos = cue.position;\n break;\n case \"middle\":\n textPos = cue.position - (cue.size / 2);\n break;\n case \"end\":\n textPos = cue.position - cue.size;\n break;\n }\n\n // Horizontal box orientation; textPos is the distance from the left edge of the\n // area to the left edge of the box and cue.size is the distance extending to\n // the right from there.\n if (cue.vertical === \"\") {\n this.applyStyles({\n left: this.formatStyle(textPos, \"%\"),\n width: this.formatStyle(cue.size, \"%\")\n });\n // Vertical box orientation; textPos is the distance from the top edge of the\n // area to the top edge of the box and cue.size is the height extending\n // downwards from there.\n } else {\n this.applyStyles({\n top: this.formatStyle(textPos, \"%\"),\n height: this.formatStyle(cue.size, \"%\")\n });\n }\n\n this.move = function(box) {\n this.applyStyles({\n top: this.formatStyle(box.top, \"px\"),\n bottom: this.formatStyle(box.bottom, \"px\"),\n left: this.formatStyle(box.left, \"px\"),\n right: this.formatStyle(box.right, \"px\"),\n height: this.formatStyle(box.height, \"px\"),\n width: this.formatStyle(box.width, \"px\")\n });\n };\n}\nCueStyleBox.prototype = _objCreate(StyleBox.prototype);\nCueStyleBox.prototype.constructor = CueStyleBox;\n\n// Represents the co-ordinates of an Element in a way that we can easily\n// compute things with such as if it overlaps or intersects with another Element.\n// Can initialize it with either a StyleBox or another BoxPosition.\nfunction BoxPosition(obj) {\n var isIE8 = (/MSIE\\s8\\.0/).test(navigator.userAgent);\n\n // Either a BoxPosition was passed in and we need to copy it, or a StyleBox\n // was passed in and we need to copy the results of 'getBoundingClientRect'\n // as the object returned is readonly. All co-ordinate values are in reference\n // to the viewport origin (top left).\n var lh, height, width, top;\n if (obj.div) {\n height = obj.div.offsetHeight;\n width = obj.div.offsetWidth;\n top = obj.div.offsetTop;\n\n var rects = (rects = obj.div.childNodes) && (rects = rects[0]) &&\n rects.getClientRects && rects.getClientRects();\n obj = obj.div.getBoundingClientRect();\n // In certain cases the outter div will be slightly larger then the sum of\n // the inner div's lines. This could be due to bold text, etc, on some platforms.\n // In this case we should get the average line height and use that. This will\n // result in the desired behaviour.\n lh = rects ? Math.max((rects[0] && rects[0].height) || 0, obj.height / rects.length)\n : 0;\n\n }\n this.left = obj.left;\n this.right = obj.right;\n this.top = obj.top || top;\n this.height = obj.height || height;\n this.bottom = obj.bottom || (top + (obj.height || height));\n this.width = obj.width || width;\n this.lineHeight = lh !== undefined ? lh : obj.lineHeight;\n\n if (isIE8 && !this.lineHeight) {\n this.lineHeight = 13;\n }\n}\n\n// Move the box along a particular axis. Optionally pass in an amount to move\n// the box. If no amount is passed then the default is the line height of the\n// box.\nBoxPosition.prototype.move = function(axis, toMove) {\n toMove = toMove !== undefined ? toMove : this.lineHeight;\n switch (axis) {\n case \"+x\":\n this.left += toMove;\n this.right += toMove;\n break;\n case \"-x\":\n this.left -= toMove;\n this.right -= toMove;\n break;\n case \"+y\":\n this.top += toMove;\n this.bottom += toMove;\n break;\n case \"-y\":\n this.top -= toMove;\n this.bottom -= toMove;\n break;\n }\n};\n\n// Check if this box overlaps another box, b2.\nBoxPosition.prototype.overlaps = function(b2) {\n return this.left < b2.right &&\n this.right > b2.left &&\n this.top < b2.bottom &&\n this.bottom > b2.top;\n};\n\n// Check if this box overlaps any other boxes in boxes.\nBoxPosition.prototype.overlapsAny = function(boxes) {\n for (var i = 0; i < boxes.length; i++) {\n if (this.overlaps(boxes[i])) {\n return true;\n }\n }\n return false;\n};\n\n// Check if this box is within another box.\nBoxPosition.prototype.within = function(container) {\n return this.top >= container.top &&\n this.bottom <= container.bottom &&\n this.left >= container.left &&\n this.right <= container.right;\n};\n\n// Check if this box is entirely within the container or it is overlapping\n// on the edge opposite of the axis direction passed. For example, if \"+x\" is\n// passed and the box is overlapping on the left edge of the container, then\n// return true.\nBoxPosition.prototype.overlapsOppositeAxis = function(container, axis) {\n switch (axis) {\n case \"+x\":\n return this.left < container.left;\n case \"-x\":\n return this.right > container.right;\n case \"+y\":\n return this.top < container.top;\n case \"-y\":\n return this.bottom > container.bottom;\n }\n};\n\n// Find the percentage of the area that this box is overlapping with another\n// box.\nBoxPosition.prototype.intersectPercentage = function(b2) {\n var x = Math.max(0, Math.min(this.right, b2.right) - Math.max(this.left, b2.left)),\n y = Math.max(0, Math.min(this.bottom, b2.bottom) - Math.max(this.top, b2.top)),\n intersectArea = x * y;\n return intersectArea / (this.height * this.width);\n};\n\n// Convert the positions from this box to CSS compatible positions using\n// the reference container's positions. This has to be done because this\n// box's positions are in reference to the viewport origin, whereas, CSS\n// values are in referecne to their respective edges.\nBoxPosition.prototype.toCSSCompatValues = function(reference) {\n return {\n top: this.top - reference.top,\n bottom: reference.bottom - this.bottom,\n left: this.left - reference.left,\n right: reference.right - this.right,\n height: this.height,\n width: this.width\n };\n};\n\n// Get an object that represents the box's position without anything extra.\n// Can pass a StyleBox, HTMLElement, or another BoxPositon.\nBoxPosition.getSimpleBoxPosition = function(obj) {\n var height = obj.div ? obj.div.offsetHeight : obj.tagName ? obj.offsetHeight : 0;\n var width = obj.div ? obj.div.offsetWidth : obj.tagName ? obj.offsetWidth : 0;\n var top = obj.div ? obj.div.offsetTop : obj.tagName ? obj.offsetTop : 0;\n\n obj = obj.div ? obj.div.getBoundingClientRect() :\n obj.tagName ? obj.getBoundingClientRect() : obj;\n var ret = {\n left: obj.left,\n right: obj.right,\n top: obj.top || top,\n height: obj.height || height,\n bottom: obj.bottom || (top + (obj.height || height)),\n width: obj.width || width\n };\n return ret;\n};\n\n// Move a StyleBox to its specified, or next best, position. The containerBox\n// is the box that contains the StyleBox, such as a div. boxPositions are\n// a list of other boxes that the styleBox can't overlap with.\nfunction moveBoxToLinePosition(window, styleBox, containerBox, boxPositions) {\n\n // Find the best position for a cue box, b, on the video. The axis parameter\n // is a list of axis, the order of which, it will move the box along. For example:\n // Passing [\"+x\", \"-x\"] will move the box first along the x axis in the positive\n // direction. If it doesn't find a good position for it there it will then move\n // it along the x axis in the negative direction.\n function findBestPosition(b, axis) {\n var bestPosition,\n specifiedPosition = new BoxPosition(b),\n percentage = 1; // Highest possible so the first thing we get is better.\n\n for (var i = 0; i < axis.length; i++) {\n while (b.overlapsOppositeAxis(containerBox, axis[i]) ||\n (b.within(containerBox) && b.overlapsAny(boxPositions))) {\n b.move(axis[i]);\n }\n // We found a spot where we aren't overlapping anything. This is our\n // best position.\n if (b.within(containerBox)) {\n return b;\n }\n var p = b.intersectPercentage(containerBox);\n // If we're outside the container box less then we were on our last try\n // then remember this position as the best position.\n if (percentage > p) {\n bestPosition = new BoxPosition(b);\n percentage = p;\n }\n // Reset the box position to the specified position.\n b = new BoxPosition(specifiedPosition);\n }\n return bestPosition || specifiedPosition;\n }\n\n var boxPosition = new BoxPosition(styleBox),\n cue = styleBox.cue,\n linePos = computeLinePos(cue),\n axis = [];\n\n // If we have a line number to align the cue to.\n if (cue.snapToLines) {\n var size;\n switch (cue.vertical) {\n case \"\":\n axis = [ \"+y\", \"-y\" ];\n size = \"height\";\n break;\n case \"rl\":\n axis = [ \"+x\", \"-x\" ];\n size = \"width\";\n break;\n case \"lr\":\n axis = [ \"-x\", \"+x\" ];\n size = \"width\";\n break;\n }\n\n var step = boxPosition.lineHeight,\n position = step * Math.round(linePos),\n maxPosition = containerBox[size] + step,\n initialAxis = axis[0];\n\n // If the specified intial position is greater then the max position then\n // clamp the box to the amount of steps it would take for the box to\n // reach the max position.\n if (Math.abs(position) > maxPosition) {\n position = position < 0 ? -1 : 1;\n position *= Math.ceil(maxPosition / step) * step;\n }\n\n // If computed line position returns negative then line numbers are\n // relative to the bottom of the video instead of the top. Therefore, we\n // need to increase our initial position by the length or width of the\n // video, depending on the writing direction, and reverse our axis directions.\n if (linePos < 0) {\n position += cue.vertical === \"\" ? containerBox.height : containerBox.width;\n axis = axis.reverse();\n }\n\n // Move the box to the specified position. This may not be its best\n // position.\n boxPosition.move(initialAxis, position);\n\n } else {\n // If we have a percentage line value for the cue.\n var calculatedPercentage = (boxPosition.lineHeight / containerBox.height) * 100;\n\n switch (cue.lineAlign) {\n case \"middle\":\n linePos -= (calculatedPercentage / 2);\n break;\n case \"end\":\n linePos -= calculatedPercentage;\n break;\n }\n\n // Apply initial line position to the cue box.\n switch (cue.vertical) {\n case \"\":\n styleBox.applyStyles({\n top: styleBox.formatStyle(linePos, \"%\")\n });\n break;\n case \"rl\":\n styleBox.applyStyles({\n left: styleBox.formatStyle(linePos, \"%\")\n });\n break;\n case \"lr\":\n styleBox.applyStyles({\n right: styleBox.formatStyle(linePos, \"%\")\n });\n break;\n }\n\n axis = [ \"+y\", \"-x\", \"+x\", \"-y\" ];\n\n // Get the box position again after we've applied the specified positioning\n // to it.\n boxPosition = new BoxPosition(styleBox);\n }\n\n var bestPosition = findBestPosition(boxPosition, axis);\n styleBox.move(bestPosition.toCSSCompatValues(containerBox));\n}\n\nfunction WebVTT() {\n // Nothing\n}\n\n// Helper to allow strings to be decoded instead of the default binary utf8 data.\nWebVTT.StringDecoder = function() {\n return {\n decode: function(data) {\n if (!data) {\n return \"\";\n }\n if (typeof data !== \"string\") {\n throw new Error(\"Error - expected string data.\");\n }\n return decodeURIComponent(encodeURIComponent(data));\n }\n };\n};\n\nWebVTT.convertCueToDOMTree = function(window, cuetext) {\n if (!window || !cuetext) {\n return null;\n }\n return parseContent(window, cuetext);\n};\n\nvar FONT_SIZE_PERCENT = 0.05;\nvar FONT_STYLE = \"sans-serif\";\nvar CUE_BACKGROUND_PADDING = \"1.5%\";\n\n// Runs the processing model over the cues and regions passed to it.\n// @param overlay A block level element (usually a div) that the computed cues\n// and regions will be placed into.\nWebVTT.processCues = function(window, cues, overlay) {\n if (!window || !cues || !overlay) {\n return null;\n }\n\n // Remove all previous children.\n while (overlay.firstChild) {\n overlay.removeChild(overlay.firstChild);\n }\n\n var paddedOverlay = window.document.createElement(\"div\");\n paddedOverlay.style.position = \"absolute\";\n paddedOverlay.style.left = \"0\";\n paddedOverlay.style.right = \"0\";\n paddedOverlay.style.top = \"0\";\n paddedOverlay.style.bottom = \"0\";\n paddedOverlay.style.margin = CUE_BACKGROUND_PADDING;\n overlay.appendChild(paddedOverlay);\n\n // Determine if we need to compute the display states of the cues. This could\n // be the case if a cue's state has been changed since the last computation or\n // if it has not been computed yet.\n function shouldCompute(cues) {\n for (var i = 0; i < cues.length; i++) {\n if (cues[i].hasBeenReset || !cues[i].displayState) {\n return true;\n }\n }\n return false;\n }\n\n // We don't need to recompute the cues' display states. Just reuse them.\n if (!shouldCompute(cues)) {\n for (var i = 0; i < cues.length; i++) {\n paddedOverlay.appendChild(cues[i].displayState);\n }\n return;\n }\n\n var boxPositions = [],\n containerBox = BoxPosition.getSimpleBoxPosition(paddedOverlay),\n fontSize = Math.round(containerBox.height * FONT_SIZE_PERCENT * 100) / 100;\n var styleOptions = {\n font: fontSize + \"px \" + FONT_STYLE\n };\n\n (function() {\n var styleBox, cue;\n\n for (var i = 0; i < cues.length; i++) {\n cue = cues[i];\n\n // Compute the intial position and styles of the cue div.\n styleBox = new CueStyleBox(window, cue, styleOptions);\n paddedOverlay.appendChild(styleBox.div);\n\n // Move the cue div to it's correct line position.\n moveBoxToLinePosition(window, styleBox, containerBox, boxPositions);\n\n // Remember the computed div so that we don't have to recompute it later\n // if we don't have too.\n cue.displayState = styleBox.div;\n\n boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox));\n }\n })();\n};\n\nWebVTT.Parser = function(window, vttjs, decoder) {\n if (!decoder) {\n decoder = vttjs;\n vttjs = {};\n }\n if (!vttjs) {\n vttjs = {};\n }\n\n this.window = window;\n this.vttjs = vttjs;\n this.state = \"INITIAL\";\n this.buffer = \"\";\n this.decoder = decoder || new TextDecoder(\"utf8\");\n this.regionList = [];\n};\n\nWebVTT.Parser.prototype = {\n // If the error is a ParsingError then report it to the consumer if\n // possible. If it's not a ParsingError then throw it like normal.\n reportOrThrowError: function(e) {\n if (e instanceof ParsingError) {\n this.onparsingerror && this.onparsingerror(e);\n } else {\n throw e;\n }\n },\n parse: function (data) {\n var self = this;\n\n // If there is no data then we won't decode it, but will just try to parse\n // whatever is in buffer already. This may occur in circumstances, for\n // example when flush() is called.\n if (data) {\n // Try to decode the data that we received.\n self.buffer += self.decoder.decode(data, {stream: true});\n }\n\n function collectNextLine() {\n var buffer = self.buffer;\n var pos = 0;\n while (pos < buffer.length && buffer[pos] !== '\\r' && buffer[pos] !== '\\n') {\n ++pos;\n }\n var line = buffer.substr(0, pos);\n // Advance the buffer early in case we fail below.\n if (buffer[pos] === '\\r') {\n ++pos;\n }\n if (buffer[pos] === '\\n') {\n ++pos;\n }\n self.buffer = buffer.substr(pos);\n return line;\n }\n\n // 3.4 WebVTT region and WebVTT region settings syntax\n function parseRegion(input) {\n var settings = new Settings();\n\n parseOptions(input, function (k, v) {\n switch (k) {\n case \"id\":\n settings.set(k, v);\n break;\n case \"width\":\n settings.percent(k, v);\n break;\n case \"lines\":\n settings.integer(k, v);\n break;\n case \"regionanchor\":\n case \"viewportanchor\":\n var xy = v.split(',');\n if (xy.length !== 2) {\n break;\n }\n // We have to make sure both x and y parse, so use a temporary\n // settings object here.\n var anchor = new Settings();\n anchor.percent(\"x\", xy[0]);\n anchor.percent(\"y\", xy[1]);\n if (!anchor.has(\"x\") || !anchor.has(\"y\")) {\n break;\n }\n settings.set(k + \"X\", anchor.get(\"x\"));\n settings.set(k + \"Y\", anchor.get(\"y\"));\n break;\n case \"scroll\":\n settings.alt(k, v, [\"up\"]);\n break;\n }\n }, /=/, /\\s/);\n\n // Create the region, using default values for any values that were not\n // specified.\n if (settings.has(\"id\")) {\n var region = new (self.vttjs.VTTRegion || self.window.VTTRegion)();\n region.width = settings.get(\"width\", 100);\n region.lines = settings.get(\"lines\", 3);\n region.regionAnchorX = settings.get(\"regionanchorX\", 0);\n region.regionAnchorY = settings.get(\"regionanchorY\", 100);\n region.viewportAnchorX = settings.get(\"viewportanchorX\", 0);\n region.viewportAnchorY = settings.get(\"viewportanchorY\", 100);\n region.scroll = settings.get(\"scroll\", \"\");\n // Register the region.\n self.onregion && self.onregion(region);\n // Remember the VTTRegion for later in case we parse any VTTCues that\n // reference it.\n self.regionList.push({\n id: settings.get(\"id\"),\n region: region\n });\n }\n }\n\n // draft-pantos-http-live-streaming-20\n // https://tools.ietf.org/html/draft-pantos-http-live-streaming-20#section-3.5\n // 3.5 WebVTT\n function parseTimestampMap(input) {\n var settings = new Settings();\n\n parseOptions(input, function(k, v) {\n switch(k) {\n case \"MPEGT\":\n settings.integer(k + 'S', v);\n break;\n case \"LOCA\":\n settings.set(k + 'L', parseTimeStamp(v));\n break;\n }\n }, /[^\\d]:/, /,/);\n\n self.ontimestampmap && self.ontimestampmap({\n \"MPEGTS\": settings.get(\"MPEGTS\"),\n \"LOCAL\": settings.get(\"LOCAL\")\n });\n }\n\n // 3.2 WebVTT metadata header syntax\n function parseHeader(input) {\n if (input.match(/X-TIMESTAMP-MAP/)) {\n // This line contains HLS X-TIMESTAMP-MAP metadata\n parseOptions(input, function(k, v) {\n switch(k) {\n case \"X-TIMESTAMP-MAP\":\n parseTimestampMap(v);\n break;\n }\n }, /=/);\n } else {\n parseOptions(input, function (k, v) {\n switch (k) {\n case \"Region\":\n // 3.3 WebVTT region metadata header syntax\n parseRegion(v);\n break;\n }\n }, /:/);\n }\n\n }\n\n // 5.1 WebVTT file parsing.\n try {\n var line;\n if (self.state === \"INITIAL\") {\n // We can't start parsing until we have the first line.\n if (!/\\r\\n|\\n/.test(self.buffer)) {\n return this;\n }\n\n line = collectNextLine();\n\n var m = line.match(/^WEBVTT([ \\t].*)?$/);\n if (!m || !m[0]) {\n throw new ParsingError(ParsingError.Errors.BadSignature);\n }\n\n self.state = \"HEADER\";\n }\n\n var alreadyCollectedLine = false;\n while (self.buffer) {\n // We can't parse a line until we have the full line.\n if (!/\\r\\n|\\n/.test(self.buffer)) {\n return this;\n }\n\n if (!alreadyCollectedLine) {\n line = collectNextLine();\n } else {\n alreadyCollectedLine = false;\n }\n\n switch (self.state) {\n case \"HEADER\":\n // 13-18 - Allow a header (metadata) under the WEBVTT line.\n if (/:/.test(line)) {\n parseHeader(line);\n } else if (!line) {\n // An empty line terminates the header and starts the body (cues).\n self.state = \"ID\";\n }\n continue;\n case \"NOTE\":\n // Ignore NOTE blocks.\n if (!line) {\n self.state = \"ID\";\n }\n continue;\n case \"ID\":\n // Check for the start of NOTE blocks.\n if (/^NOTE($|[ \\t])/.test(line)) {\n self.state = \"NOTE\";\n break;\n }\n // 19-29 - Allow any number of line terminators, then initialize new cue values.\n if (!line) {\n continue;\n }\n self.cue = new (self.vttjs.VTTCue || self.window.VTTCue)(0, 0, \"\");\n self.state = \"CUE\";\n // 30-39 - Check if self line contains an optional identifier or timing data.\n if (line.indexOf(\"-->\") === -1) {\n self.cue.id = line;\n continue;\n }\n // Process line as start of a cue.\n /*falls through*/\n case \"CUE\":\n // 40 - Collect cue timings and settings.\n try {\n parseCue(line, self.cue, self.regionList);\n } catch (e) {\n self.reportOrThrowError(e);\n // In case of an error ignore rest of the cue.\n self.cue = null;\n self.state = \"BADCUE\";\n continue;\n }\n self.state = \"CUETEXT\";\n continue;\n case \"CUETEXT\":\n var hasSubstring = line.indexOf(\"-->\") !== -1;\n // 34 - If we have an empty line then report the cue.\n // 35 - If we have the special substring '-->' then report the cue,\n // but do not collect the line as we need to process the current\n // one as a new cue.\n if (!line || hasSubstring && (alreadyCollectedLine = true)) {\n // We are done parsing self cue.\n self.oncue && self.oncue(self.cue);\n self.cue = null;\n self.state = \"ID\";\n continue;\n }\n if (self.cue.text) {\n self.cue.text += \"\\n\";\n }\n self.cue.text += line;\n continue;\n case \"BADCUE\": // BADCUE\n // 54-62 - Collect and discard the remaining cue.\n if (!line) {\n self.state = \"ID\";\n }\n continue;\n }\n }\n } catch (e) {\n self.reportOrThrowError(e);\n\n // If we are currently parsing a cue, report what we have.\n if (self.state === \"CUETEXT\" && self.cue && self.oncue) {\n self.oncue(self.cue);\n }\n self.cue = null;\n // Enter BADWEBVTT state if header was not parsed correctly otherwise\n // another exception occurred so enter BADCUE state.\n self.state = self.state === \"INITIAL\" ? \"BADWEBVTT\" : \"BADCUE\";\n }\n return this;\n },\n flush: function () {\n var self = this;\n try {\n // Finish decoding the stream.\n self.buffer += self.decoder.decode();\n // Synthesize the end of the current cue or region.\n if (self.cue || self.state === \"HEADER\") {\n self.buffer += \"\\n\\n\";\n self.parse();\n }\n // If we've flushed, parsed, and we're still on the INITIAL state then\n // that means we don't have enough of the stream to parse the first\n // line.\n if (self.state === \"INITIAL\") {\n throw new ParsingError(ParsingError.Errors.BadSignature);\n }\n } catch(e) {\n self.reportOrThrowError(e);\n }\n self.onflush && self.onflush();\n return this;\n }\n};\n\nmodule.exports = WebVTT;\n","/**\n * Copyright 2013 vtt.js Contributors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar autoKeyword = \"auto\";\nvar directionSetting = {\n \"\": true,\n \"lr\": true,\n \"rl\": true\n};\nvar alignSetting = {\n \"start\": true,\n \"middle\": true,\n \"end\": true,\n \"left\": true,\n \"right\": true\n};\n\nfunction findDirectionSetting(value) {\n if (typeof value !== \"string\") {\n return false;\n }\n var dir = directionSetting[value.toLowerCase()];\n return dir ? value.toLowerCase() : false;\n}\n\nfunction findAlignSetting(value) {\n if (typeof value !== \"string\") {\n return false;\n }\n var align = alignSetting[value.toLowerCase()];\n return align ? value.toLowerCase() : false;\n}\n\nfunction extend(obj) {\n var i = 1;\n for (; i < arguments.length; i++) {\n var cobj = arguments[i];\n for (var p in cobj) {\n obj[p] = cobj[p];\n }\n }\n\n return obj;\n}\n\nfunction VTTCue(startTime, endTime, text) {\n var cue = this;\n var isIE8 = (/MSIE\\s8\\.0/).test(navigator.userAgent);\n var baseObj = {};\n\n if (isIE8) {\n cue = document.createElement('custom');\n } else {\n baseObj.enumerable = true;\n }\n\n /**\n * Shim implementation specific properties. These properties are not in\n * the spec.\n */\n\n // Lets us know when the VTTCue's data has changed in such a way that we need\n // to recompute its display state. This lets us compute its display state\n // lazily.\n cue.hasBeenReset = false;\n\n /**\n * VTTCue and TextTrackCue properties\n * http://dev.w3.org/html5/webvtt/#vttcue-interface\n */\n\n var _id = \"\";\n var _pauseOnExit = false;\n var _startTime = startTime;\n var _endTime = endTime;\n var _text = text;\n var _region = null;\n var _vertical = \"\";\n var _snapToLines = true;\n var _line = \"auto\";\n var _lineAlign = \"start\";\n var _position = 50;\n var _positionAlign = \"middle\";\n var _size = 50;\n var _align = \"middle\";\n\n Object.defineProperty(cue,\n \"id\", extend({}, baseObj, {\n get: function() {\n return _id;\n },\n set: function(value) {\n _id = \"\" + value;\n }\n }));\n\n Object.defineProperty(cue,\n \"pauseOnExit\", extend({}, baseObj, {\n get: function() {\n return _pauseOnExit;\n },\n set: function(value) {\n _pauseOnExit = !!value;\n }\n }));\n\n Object.defineProperty(cue,\n \"startTime\", extend({}, baseObj, {\n get: function() {\n return _startTime;\n },\n set: function(value) {\n if (typeof value !== \"number\") {\n throw new TypeError(\"Start time must be set to a number.\");\n }\n _startTime = value;\n this.hasBeenReset = true;\n }\n }));\n\n Object.defineProperty(cue,\n \"endTime\", extend({}, baseObj, {\n get: function() {\n return _endTime;\n },\n set: function(value) {\n if (typeof value !== \"number\") {\n throw new TypeError(\"End time must be set to a number.\");\n }\n _endTime = value;\n this.hasBeenReset = true;\n }\n }));\n\n Object.defineProperty(cue,\n \"text\", extend({}, baseObj, {\n get: function() {\n return _text;\n },\n set: function(value) {\n _text = \"\" + value;\n this.hasBeenReset = true;\n }\n }));\n\n Object.defineProperty(cue,\n \"region\", extend({}, baseObj, {\n get: function() {\n return _region;\n },\n set: function(value) {\n _region = value;\n this.hasBeenReset = true;\n }\n }));\n\n Object.defineProperty(cue,\n \"vertical\", extend({}, baseObj, {\n get: function() {\n return _vertical;\n },\n set: function(value) {\n var setting = findDirectionSetting(value);\n // Have to check for false because the setting an be an empty string.\n if (setting === false) {\n throw new SyntaxError(\"An invalid or illegal string was specified.\");\n }\n _vertical = setting;\n this.hasBeenReset = true;\n }\n }));\n\n Object.defineProperty(cue,\n \"snapToLines\", extend({}, baseObj, {\n get: function() {\n return _snapToLines;\n },\n set: function(value) {\n _snapToLines = !!value;\n this.hasBeenReset = true;\n }\n }));\n\n Object.defineProperty(cue,\n \"line\", extend({}, baseObj, {\n get: function() {\n return _line;\n },\n set: function(value) {\n if (typeof value !== \"number\" && value !== autoKeyword) {\n throw new SyntaxError(\"An invalid number or illegal string was specified.\");\n }\n _line = value;\n this.hasBeenReset = true;\n }\n }));\n\n Object.defineProperty(cue,\n \"lineAlign\", extend({}, baseObj, {\n get: function() {\n return _lineAlign;\n },\n set: function(value) {\n var setting = findAlignSetting(value);\n if (!setting) {\n throw new SyntaxError(\"An invalid or illegal string was specified.\");\n }\n _lineAlign = setting;\n this.hasBeenReset = true;\n }\n }));\n\n Object.defineProperty(cue,\n \"position\", extend({}, baseObj, {\n get: function() {\n return _position;\n },\n set: function(value) {\n if (value < 0 || value > 100) {\n throw new Error(\"Position must be between 0 and 100.\");\n }\n _position = value;\n this.hasBeenReset = true;\n }\n }));\n\n Object.defineProperty(cue,\n \"positionAlign\", extend({}, baseObj, {\n get: function() {\n return _positionAlign;\n },\n set: function(value) {\n var setting = findAlignSetting(value);\n if (!setting) {\n throw new SyntaxError(\"An invalid or illegal string was specified.\");\n }\n _positionAlign = setting;\n this.hasBeenReset = true;\n }\n }));\n\n Object.defineProperty(cue,\n \"size\", extend({}, baseObj, {\n get: function() {\n return _size;\n },\n set: function(value) {\n if (value < 0 || value > 100) 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License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar scrollSetting = {\n \"\": true,\n \"up\": true\n};\n\nfunction findScrollSetting(value) {\n if (typeof value !== \"string\") {\n return false;\n }\n var scroll = scrollSetting[value.toLowerCase()];\n return scroll ? value.toLowerCase() : false;\n}\n\nfunction isValidPercentValue(value) {\n return typeof value === \"number\" && (value >= 0 && value <= 100);\n}\n\n// VTTRegion shim http://dev.w3.org/html5/webvtt/#vttregion-interface\nfunction VTTRegion() {\n var _width = 100;\n var _lines = 3;\n var _regionAnchorX = 0;\n var _regionAnchorY = 100;\n var _viewportAnchorX = 0;\n var _viewportAnchorY = 100;\n var _scroll = \"\";\n\n Object.defineProperties(this, {\n \"width\": {\n enumerable: true,\n get: function() {\n return _width;\n },\n set: function(value) {\n if (!isValidPercentValue(value)) {\n throw new Error(\"Width must be between 0 and 100.\");\n }\n _width = value;\n }\n },\n \"lines\": {\n enumerable: true,\n get: function() {\n return _lines;\n },\n set: function(value) {\n if (typeof value !== \"number\") {\n throw new TypeError(\"Lines must be set to a number.\");\n }\n _lines = value;\n }\n },\n \"regionAnchorY\": {\n enumerable: true,\n get: function() {\n return _regionAnchorY;\n },\n set: function(value) {\n if (!isValidPercentValue(value)) {\n throw new Error(\"RegionAnchorX must be between 0 and 100.\");\n }\n _regionAnchorY = value;\n }\n },\n \"regionAnchorX\": {\n enumerable: true,\n get: function() 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invalid or illegal string was specified.\");\n }\n _scroll = setting;\n }\n }\n });\n}\n\nmodule.exports = VTTRegion;\n","var g;\n\n// This works in non-strict mode\ng = (function() {\n\treturn this;\n})();\n\ntry {\n\t// This works if eval is allowed (see CSP)\n\tg = g || new Function(\"return this\")();\n} catch (e) {\n\t// This works if the window reference is available\n\tif (typeof window === \"object\") g = window;\n}\n\n// g can still be undefined, but nothing to do about it...\n// We return undefined, instead of nothing here, so it's\n// easier to handle this case. if(!global) { ...}\n\nmodule.exports = g;\n","module.exports = function(module) {\n\tif (!module.webpackPolyfill) {\n\t\tmodule.deprecate = function() {};\n\t\tmodule.paths = [];\n\t\t// module.parent = undefined by default\n\t\tif (!module.children) module.children = [];\n\t\tObject.defineProperty(module, \"loaded\", {\n\t\t\tenumerable: true,\n\t\t\tget: function() {\n\t\t\t\treturn module.l;\n\t\t\t}\n\t\t});\n\t\tObject.defineProperty(module, \"id\", {\n\t\t\tenumerable: true,\n\t\t\tget: function() {\n\t\t\t\treturn module.i;\n\t\t\t}\n\t\t});\n\t\tmodule.webpackPolyfill = 1;\n\t}\n\treturn module;\n};\n","\"use strict\";\nvar window = require(\"global/window\")\nvar isFunction = require(\"is-function\")\nvar parseHeaders = require(\"parse-headers\")\nvar xtend = require(\"xtend\")\n\nmodule.exports = createXHR\ncreateXHR.XMLHttpRequest = window.XMLHttpRequest || noop\ncreateXHR.XDomainRequest = \"withCredentials\" in (new createXHR.XMLHttpRequest()) ? createXHR.XMLHttpRequest : window.XDomainRequest\n\nforEachArray([\"get\", \"put\", \"post\", \"patch\", \"head\", \"delete\"], function(method) {\n createXHR[method === \"delete\" ? \"del\" : method] = function(uri, options, callback) {\n options = initParams(uri, options, callback)\n options.method = method.toUpperCase()\n return _createXHR(options)\n }\n})\n\nfunction forEachArray(array, iterator) {\n for (var 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