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Diffstat (limited to 'priv/static/video.js/alt/video.core.js')
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diff --git a/priv/static/video.js/alt/video.core.js b/priv/static/video.js/alt/video.core.js new file mode 100644 index 0000000..28b38e7 --- /dev/null +++ b/priv/static/video.js/alt/video.core.js @@ -0,0 +1,28595 @@ +/** + * @license + * Video.js 8.12.0 <http://videojs.com/> + * Copyright Brightcove, Inc. <https://www.brightcove.com/> + * Available under Apache License Version 2.0 + * <https://github.com/videojs/video.js/blob/main/LICENSE> + * + * Includes vtt.js <https://github.com/mozilla/vtt.js> + * Available under Apache License Version 2.0 + * <https://github.com/mozilla/vtt.js/blob/main/LICENSE> + */ + +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : + typeof define === 'function' && define.amd ? define(factory) : + (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.videojs = factory()); +})(this, (function () { 'use strict'; + + var version = "8.12.0"; + + /** + * An Object that contains lifecycle hooks as keys which point to an array + * of functions that are run when a lifecycle is triggered + * + * @private + */ + const hooks_ = {}; + + /** + * Get a list of hooks for a specific lifecycle + * + * @param {string} type + * the lifecycle to get hooks from + * + * @param {Function|Function[]} [fn] + * Optionally add a hook (or hooks) to the lifecycle that your are getting. + * + * @return {Array} + * an array of hooks, or an empty array if there are none. + */ + const hooks = function (type, fn) { + hooks_[type] = hooks_[type] || []; + if (fn) { + hooks_[type] = hooks_[type].concat(fn); + } + return hooks_[type]; + }; + + /** + * Add a function hook to a specific videojs lifecycle. + * + * @param {string} type + * the lifecycle to hook the function to. + * + * @param {Function|Function[]} + * The function or array of functions to attach. + */ + const hook = function (type, fn) { + hooks(type, fn); + }; + + /** + * Remove a hook from a specific videojs lifecycle. + * + * @param {string} type + * the lifecycle that the function hooked to + * + * @param {Function} fn + * The hooked function to remove + * + * @return {boolean} + * The function that was removed or undef + */ + const removeHook = function (type, fn) { + const index = hooks(type).indexOf(fn); + if (index <= -1) { + return false; + } + hooks_[type] = hooks_[type].slice(); + hooks_[type].splice(index, 1); + return true; + }; + + /** + * Add a function hook that will only run once to a specific videojs lifecycle. + * + * @param {string} type + * the lifecycle to hook the function to. + * + * @param {Function|Function[]} + * The function or array of functions to attach. + */ + const hookOnce = function (type, fn) { + hooks(type, [].concat(fn).map(original => { + const wrapper = (...args) => { + removeHook(type, wrapper); + return original(...args); + }; + return wrapper; + })); + }; + + /** + * @file fullscreen-api.js + * @module fullscreen-api + */ + + /** + * Store the browser-specific methods for the fullscreen API. + * + * @type {Object} + * @see [Specification]{@link https://fullscreen.spec.whatwg.org} + * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js} + */ + const FullscreenApi = { + prefixed: true + }; + + // browser API methods + const apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror', 'fullscreen'], + // WebKit + ['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror', '-webkit-full-screen']]; + const specApi = apiMap[0]; + let browserApi; + + // determine the supported set of functions + for (let i = 0; i < apiMap.length; i++) { + // check for exitFullscreen function + if (apiMap[i][1] in document) { + browserApi = apiMap[i]; + break; + } + } + + // map the browser API names to the spec API names + if (browserApi) { + for (let i = 0; i < browserApi.length; i++) { + FullscreenApi[specApi[i]] = browserApi[i]; + } + FullscreenApi.prefixed = browserApi[0] !== specApi[0]; + } + + /** + * @file create-logger.js + * @module create-logger + */ + + // This is the private tracking variable for the logging history. + let history = []; + + /** + * Log messages to the console and history based on the type of message + * + * @private + * @param {string} name + * The name of the console method to use. + * + * @param {Object} log + * The arguments to be passed to the matching console method. + * + * @param {string} [styles] + * styles for name + */ + const LogByTypeFactory = (name, log, styles) => (type, level, args) => { + const lvl = log.levels[level]; + const lvlRegExp = new RegExp(`^(${lvl})$`); + let resultName = name; + if (type !== 'log') { + // Add the type to the front of the message when it's not "log". + args.unshift(type.toUpperCase() + ':'); + } + if (styles) { + resultName = `%c${name}`; + args.unshift(styles); + } + + // Add console prefix after adding to history. + args.unshift(resultName + ':'); + + // Add a clone of the args at this point to history. + if (history) { + history.push([].concat(args)); + + // only store 1000 history entries + const splice = history.length - 1000; + history.splice(0, splice > 0 ? splice : 0); + } + + // If there's no console then don't try to output messages, but they will + // still be stored in history. + if (!window.console) { + return; + } + + // Was setting these once outside of this function, but containing them + // in the function makes it easier to test cases where console doesn't exist + // when the module is executed. + let fn = window.console[type]; + if (!fn && type === 'debug') { + // Certain browsers don't have support for console.debug. For those, we + // should default to the closest comparable log. + fn = window.console.info || window.console.log; + } + + // Bail out if there's no console or if this type is not allowed by the + // current logging level. + if (!fn || !lvl || !lvlRegExp.test(type)) { + return; + } + fn[Array.isArray(args) ? 'apply' : 'call'](window.console, args); + }; + function createLogger$1(name, delimiter = ':', styles = '') { + // This is the private tracking variable for logging level. + let level = 'info'; + + // the curried logByType bound to the specific log and history + let logByType; + + /** + * Logs plain debug messages. Similar to `console.log`. + * + * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149) + * of our JSDoc template, we cannot properly document this as both a function + * and a namespace, so its function signature is documented here. + * + * #### Arguments + * ##### *args + * *[] + * + * Any combination of values that could be passed to `console.log()`. + * + * #### Return Value + * + * `undefined` + * + * @namespace + * @param {...*} args + * One or more messages or objects that should be logged. + */ + const log = function (...args) { + logByType('log', level, args); + }; + + // This is the logByType helper that the logging methods below use + logByType = LogByTypeFactory(name, log, styles); + + /** + * Create a new subLogger which chains the old name to the new name. + * + * For example, doing `videojs.log.createLogger('player')` and then using that logger will log the following: + * ```js + * mylogger('foo'); + * // > VIDEOJS: player: foo + * ``` + * + * @param {string} subName + * The name to add call the new logger + * @param {string} [subDelimiter] + * Optional delimiter + * @param {string} [subStyles] + * Optional styles + * @return {Object} + */ + log.createLogger = (subName, subDelimiter, subStyles) => { + const resultDelimiter = subDelimiter !== undefined ? subDelimiter : delimiter; + const resultStyles = subStyles !== undefined ? subStyles : styles; + const resultName = `${name} ${resultDelimiter} ${subName}`; + return createLogger$1(resultName, resultDelimiter, resultStyles); + }; + + /** + * Create a new logger. + * + * @param {string} newName + * The name for the new logger + * @param {string} [newDelimiter] + * Optional delimiter + * @param {string} [newStyles] + * Optional styles + * @return {Object} + */ + log.createNewLogger = (newName, newDelimiter, newStyles) => { + return createLogger$1(newName, newDelimiter, newStyles); + }; + + /** + * Enumeration of available logging levels, where the keys are the level names + * and the values are `|`-separated strings containing logging methods allowed + * in that logging level. These strings are used to create a regular expression + * matching the function name being called. + * + * Levels provided by Video.js are: + * + * - `off`: Matches no calls. Any value that can be cast to `false` will have + * this effect. The most restrictive. + * - `all`: Matches only Video.js-provided functions (`debug`, `log`, + * `log.warn`, and `log.error`). + * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls. + * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls. + * - `warn`: Matches `log.warn` and `log.error` calls. + * - `error`: Matches only `log.error` calls. + * + * @type {Object} + */ + log.levels = { + all: 'debug|log|warn|error', + off: '', + debug: 'debug|log|warn|error', + info: 'log|warn|error', + warn: 'warn|error', + error: 'error', + DEFAULT: level + }; + + /** + * Get or set the current logging level. + * + * If a string matching a key from {@link module:log.levels} is provided, acts + * as a setter. + * + * @param {'all'|'debug'|'info'|'warn'|'error'|'off'} [lvl] + * Pass a valid level to set a new logging level. + * + * @return {string} + * The current logging level. + */ + log.level = lvl => { + if (typeof lvl === 'string') { + if (!log.levels.hasOwnProperty(lvl)) { + throw new Error(`"${lvl}" in not a valid log level`); + } + level = lvl; + } + return level; + }; + + /** + * Returns an array containing everything that has been logged to the history. + * + * This array is a shallow clone of the internal history record. However, its + * contents are _not_ cloned; so, mutating objects inside this array will + * mutate them in history. + * + * @return {Array} + */ + log.history = () => history ? [].concat(history) : []; + + /** + * Allows you to filter the history by the given logger name + * + * @param {string} fname + * The name to filter by + * + * @return {Array} + * The filtered list to return + */ + log.history.filter = fname => { + return (history || []).filter(historyItem => { + // if the first item in each historyItem includes `fname`, then it's a match + return new RegExp(`.*${fname}.*`).test(historyItem[0]); + }); + }; + + /** + * Clears the internal history tracking, but does not prevent further history + * tracking. + */ + log.history.clear = () => { + if (history) { + history.length = 0; + } + }; + + /** + * Disable history tracking if it is currently enabled. + */ + log.history.disable = () => { + if (history !== null) { + history.length = 0; + history = null; + } + }; + + /** + * Enable history tracking if it is currently disabled. + */ + log.history.enable = () => { + if (history === null) { + history = []; + } + }; + + /** + * Logs error messages. Similar to `console.error`. + * + * @param {...*} args + * One or more messages or objects that should be logged as an error + */ + log.error = (...args) => logByType('error', level, args); + + /** + * Logs warning messages. Similar to `console.warn`. + * + * @param {...*} args + * One or more messages or objects that should be logged as a warning. + */ + log.warn = (...args) => logByType('warn', level, args); + + /** + * Logs debug messages. Similar to `console.debug`, but may also act as a comparable + * log if `console.debug` is not available + * + * @param {...*} args + * One or more messages or objects that should be logged as debug. + */ + log.debug = (...args) => logByType('debug', level, args); + return log; + } + + /** + * @file log.js + * @module log + */ + const log = createLogger$1('VIDEOJS'); + const createLogger = log.createLogger; + + /** + * @file obj.js + * @module obj + */ + + /** + * @callback obj:EachCallback + * + * @param {*} value + * The current key for the object that is being iterated over. + * + * @param {string} key + * The current key-value for object that is being iterated over + */ + + /** + * @callback obj:ReduceCallback + * + * @param {*} accum + * The value that is accumulating over the reduce loop. + * + * @param {*} value + * The current key for the object that is being iterated over. + * + * @param {string} key + * The current key-value for object that is being iterated over + * + * @return {*} + * The new accumulated value. + */ + const toString$1 = Object.prototype.toString; + + /** + * Get the keys of an Object + * + * @param {Object} + * The Object to get the keys from + * + * @return {string[]} + * An array of the keys from the object. Returns an empty array if the + * object passed in was invalid or had no keys. + * + * @private + */ + const keys = function (object) { + return isObject(object) ? Object.keys(object) : []; + }; + + /** + * Array-like iteration for objects. + * + * @param {Object} object + * The object to iterate over + * + * @param {obj:EachCallback} fn + * The callback function which is called for each key in the object. + */ + function each(object, fn) { + keys(object).forEach(key => fn(object[key], key)); + } + + /** + * Array-like reduce for objects. + * + * @param {Object} object + * The Object that you want to reduce. + * + * @param {Function} fn + * A callback function which is called for each key in the object. It + * receives the accumulated value and the per-iteration value and key + * as arguments. + * + * @param {*} [initial = 0] + * Starting value + * + * @return {*} + * The final accumulated value. + */ + function reduce(object, fn, initial = 0) { + return keys(object).reduce((accum, key) => fn(accum, object[key], key), initial); + } + + /** + * Returns whether a value is an object of any kind - including DOM nodes, + * arrays, regular expressions, etc. Not functions, though. + * + * This avoids the gotcha where using `typeof` on a `null` value + * results in `'object'`. + * + * @param {Object} value + * @return {boolean} + */ + function isObject(value) { + return !!value && typeof value === 'object'; + } + + /** + * Returns whether an object appears to be a "plain" object - that is, a + * direct instance of `Object`. + * + * @param {Object} value + * @return {boolean} + */ + function isPlain(value) { + return isObject(value) && toString$1.call(value) === '[object Object]' && value.constructor === Object; + } + + /** + * Merge two objects recursively. + * + * Performs a deep merge like + * {@link https://lodash.com/docs/4.17.10#merge|lodash.merge}, but only merges + * plain objects (not arrays, elements, or anything else). + * + * Non-plain object values will be copied directly from the right-most + * argument. + * + * @param {Object[]} sources + * One or more objects to merge into a new object. + * + * @return {Object} + * A new object that is the merged result of all sources. + */ + function merge(...sources) { + const result = {}; + sources.forEach(source => { + if (!source) { + return; + } + each(source, (value, key) => { + if (!isPlain(value)) { + result[key] = value; + return; + } + if (!isPlain(result[key])) { + result[key] = {}; + } + result[key] = merge(result[key], value); + }); + }); + return result; + } + + /** + * Returns an array of values for a given object + * + * @param {Object} source - target object + * @return {Array<unknown>} - object values + */ + function values(source = {}) { + const result = []; + for (const key in source) { + if (source.hasOwnProperty(key)) { + const value = source[key]; + result.push(value); + } + } + return result; + } + + /** + * Object.defineProperty but "lazy", which means that the value is only set after + * it is retrieved the first time, rather than being set right away. + * + * @param {Object} obj the object to set the property on + * @param {string} key the key for the property to set + * @param {Function} getValue the function used to get the value when it is needed. + * @param {boolean} setter whether a setter should be allowed or not + */ + function defineLazyProperty(obj, key, getValue, setter = true) { + const set = value => Object.defineProperty(obj, key, { + value, + enumerable: true, + writable: true + }); + const options = { + configurable: true, + enumerable: true, + get() { + const value = getValue(); + set(value); + return value; + } + }; + if (setter) { + options.set = set; + } + return Object.defineProperty(obj, key, options); + } + + var Obj = /*#__PURE__*/Object.freeze({ + __proto__: null, + each: each, + reduce: reduce, + isObject: isObject, + isPlain: isPlain, + merge: merge, + values: values, + defineLazyProperty: defineLazyProperty + }); + + /** + * @file browser.js + * @module browser + */ + + /** + * Whether or not this device is an iPod. + * + * @static + * @type {Boolean} + */ + let IS_IPOD = false; + + /** + * The detected iOS version - or `null`. + * + * @static + * @type {string|null} + */ + let IOS_VERSION = null; + + /** + * Whether or not this is an Android device. + * + * @static + * @type {Boolean} + */ + let IS_ANDROID = false; + + /** + * The detected Android version - or `null` if not Android or indeterminable. + * + * @static + * @type {number|string|null} + */ + let ANDROID_VERSION; + + /** + * Whether or not this is Mozilla Firefox. + * + * @static + * @type {Boolean} + */ + let IS_FIREFOX = false; + + /** + * Whether or not this is Microsoft Edge. + * + * @static + * @type {Boolean} + */ + let IS_EDGE = false; + + /** + * Whether or not this is any Chromium Browser + * + * @static + * @type {Boolean} + */ + let IS_CHROMIUM = false; + + /** + * Whether or not this is any Chromium browser that is not Edge. + * + * This will also be `true` for Chrome on iOS, which will have different support + * as it is actually Safari under the hood. + * + * Deprecated, as the behaviour to not match Edge was to prevent Legacy Edge's UA matching. + * IS_CHROMIUM should be used instead. + * "Chromium but not Edge" could be explicitly tested with IS_CHROMIUM && !IS_EDGE + * + * @static + * @deprecated + * @type {Boolean} + */ + let IS_CHROME = false; + + /** + * The detected Chromium version - or `null`. + * + * @static + * @type {number|null} + */ + let CHROMIUM_VERSION = null; + + /** + * The detected Google Chrome version - or `null`. + * This has always been the _Chromium_ version, i.e. would return on Chromium Edge. + * Deprecated, use CHROMIUM_VERSION instead. + * + * @static + * @deprecated + * @type {number|null} + */ + let CHROME_VERSION = null; + + /** + * The detected Internet Explorer version - or `null`. + * + * @static + * @deprecated + * @type {number|null} + */ + let IE_VERSION = null; + + /** + * Whether or not this is desktop Safari. + * + * @static + * @type {Boolean} + */ + let IS_SAFARI = false; + + /** + * Whether or not this is a Windows machine. + * + * @static + * @type {Boolean} + */ + let IS_WINDOWS = false; + + /** + * Whether or not this device is an iPad. + * + * @static + * @type {Boolean} + */ + let IS_IPAD = false; + + /** + * Whether or not this device is an iPhone. + * + * @static + * @type {Boolean} + */ + // The Facebook app's UIWebView identifies as both an iPhone and iPad, so + // to identify iPhones, we need to exclude iPads. + // http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/ + let IS_IPHONE = false; + + /** + * Whether or not this is a Tizen device. + * + * @static + * @type {Boolean} + */ + let IS_TIZEN = false; + + /** + * Whether or not this is a WebOS device. + * + * @static + * @type {Boolean} + */ + let IS_WEBOS = false; + + /** + * Whether or not this is a Smart TV (Tizen or WebOS) device. + * + * @static + * @type {Boolean} + */ + let IS_SMART_TV = false; + + /** + * Whether or not this device is touch-enabled. + * + * @static + * @const + * @type {Boolean} + */ + const TOUCH_ENABLED = Boolean(isReal() && ('ontouchstart' in window || window.navigator.maxTouchPoints || window.DocumentTouch && window.document instanceof window.DocumentTouch)); + const UAD = window.navigator && window.navigator.userAgentData; + if (UAD && UAD.platform && UAD.brands) { + // If userAgentData is present, use it instead of userAgent to avoid warnings + // Currently only implemented on Chromium + // userAgentData does not expose Android version, so ANDROID_VERSION remains `null` + + IS_ANDROID = UAD.platform === 'Android'; + IS_EDGE = Boolean(UAD.brands.find(b => b.brand === 'Microsoft Edge')); + IS_CHROMIUM = Boolean(UAD.brands.find(b => b.brand === 'Chromium')); + IS_CHROME = !IS_EDGE && IS_CHROMIUM; + CHROMIUM_VERSION = CHROME_VERSION = (UAD.brands.find(b => b.brand === 'Chromium') || {}).version || null; + IS_WINDOWS = UAD.platform === 'Windows'; + } + + // If the browser is not Chromium, either userAgentData is not present which could be an old Chromium browser, + // or it's a browser that has added userAgentData since that we don't have tests for yet. In either case, + // the checks need to be made agiainst the regular userAgent string. + if (!IS_CHROMIUM) { + const USER_AGENT = window.navigator && window.navigator.userAgent || ''; + IS_IPOD = /iPod/i.test(USER_AGENT); + IOS_VERSION = function () { + const match = USER_AGENT.match(/OS (\d+)_/i); + if (match && match[1]) { + return match[1]; + } + return null; + }(); + IS_ANDROID = /Android/i.test(USER_AGENT); + ANDROID_VERSION = function () { + // This matches Android Major.Minor.Patch versions + // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned + const match = USER_AGENT.match(/Android (\d+)(?:\.(\d+))?(?:\.(\d+))*/i); + if (!match) { + return null; + } + const major = match[1] && parseFloat(match[1]); + const minor = match[2] && parseFloat(match[2]); + if (major && minor) { + return parseFloat(match[1] + '.' + match[2]); + } else if (major) { + return major; + } + return null; + }(); + IS_FIREFOX = /Firefox/i.test(USER_AGENT); + IS_EDGE = /Edg/i.test(USER_AGENT); + IS_CHROMIUM = /Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT); + IS_CHROME = !IS_EDGE && IS_CHROMIUM; + CHROMIUM_VERSION = CHROME_VERSION = function () { + const match = USER_AGENT.match(/(Chrome|CriOS)\/(\d+)/); + if (match && match[2]) { + return parseFloat(match[2]); + } + return null; + }(); + IE_VERSION = function () { + const result = /MSIE\s(\d+)\.\d/.exec(USER_AGENT); + let version = result && parseFloat(result[1]); + if (!version && /Trident\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) { + // IE 11 has a different user agent string than other IE versions + version = 11.0; + } + return version; + }(); + IS_TIZEN = /Tizen/i.test(USER_AGENT); + IS_WEBOS = /Web0S/i.test(USER_AGENT); + IS_SMART_TV = IS_TIZEN || IS_WEBOS; + IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE && !IS_SMART_TV; + IS_WINDOWS = /Windows/i.test(USER_AGENT); + IS_IPAD = /iPad/i.test(USER_AGENT) || IS_SAFARI && TOUCH_ENABLED && !/iPhone/i.test(USER_AGENT); + IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD; + } + + /** + * Whether or not this is an iOS device. + * + * @static + * @const + * @type {Boolean} + */ + const IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD; + + /** + * Whether or not this is any flavor of Safari - including iOS. + * + * @static + * @const + * @type {Boolean} + */ + const IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME; + + var browser = /*#__PURE__*/Object.freeze({ + __proto__: null, + get IS_IPOD () { return IS_IPOD; }, + get IOS_VERSION () { return IOS_VERSION; }, + get IS_ANDROID () { return IS_ANDROID; }, + get ANDROID_VERSION () { return ANDROID_VERSION; }, + get IS_FIREFOX () { return IS_FIREFOX; }, + get IS_EDGE () { return IS_EDGE; }, + get IS_CHROMIUM () { return IS_CHROMIUM; }, + get IS_CHROME () { return IS_CHROME; }, + get CHROMIUM_VERSION () { return CHROMIUM_VERSION; }, + get CHROME_VERSION () { return CHROME_VERSION; }, + get IE_VERSION () { return IE_VERSION; }, + get IS_SAFARI () { return IS_SAFARI; }, + get IS_WINDOWS () { return IS_WINDOWS; }, + get IS_IPAD () { return IS_IPAD; }, + get IS_IPHONE () { return IS_IPHONE; }, + get IS_TIZEN () { return IS_TIZEN; }, + get IS_WEBOS () { return IS_WEBOS; }, + get IS_SMART_TV () { return IS_SMART_TV; }, + TOUCH_ENABLED: TOUCH_ENABLED, + IS_IOS: IS_IOS, + IS_ANY_SAFARI: IS_ANY_SAFARI + }); + + /** + * @file dom.js + * @module dom + */ + + /** + * Detect if a value is a string with any non-whitespace characters. + * + * @private + * @param {string} str + * The string to check + * + * @return {boolean} + * Will be `true` if the string is non-blank, `false` otherwise. + * + */ + function isNonBlankString(str) { + // we use str.trim as it will trim any whitespace characters + // from the front or back of non-whitespace characters. aka + // Any string that contains non-whitespace characters will + // still contain them after `trim` but whitespace only strings + // will have a length of 0, failing this check. + return typeof str === 'string' && Boolean(str.trim()); + } + + /** + * Throws an error if the passed string has whitespace. This is used by + * class methods to be relatively consistent with the classList API. + * + * @private + * @param {string} str + * The string to check for whitespace. + * + * @throws {Error} + * Throws an error if there is whitespace in the string. + */ + function throwIfWhitespace(str) { + // str.indexOf instead of regex because str.indexOf is faster performance wise. + if (str.indexOf(' ') >= 0) { + throw new Error('class has illegal whitespace characters'); + } + } + + /** + * Whether the current DOM interface appears to be real (i.e. not simulated). + * + * @return {boolean} + * Will be `true` if the DOM appears to be real, `false` otherwise. + */ + function isReal() { + // Both document and window will never be undefined thanks to `global`. + return document === window.document; + } + + /** + * Determines, via duck typing, whether or not a value is a DOM element. + * + * @param {*} value + * The value to check. + * + * @return {boolean} + * Will be `true` if the value is a DOM element, `false` otherwise. + */ + function isEl(value) { + return isObject(value) && value.nodeType === 1; + } + + /** + * Determines if the current DOM is embedded in an iframe. + * + * @return {boolean} + * Will be `true` if the DOM is embedded in an iframe, `false` + * otherwise. + */ + function isInFrame() { + // We need a try/catch here because Safari will throw errors when attempting + // to get either `parent` or `self` + try { + return window.parent !== window.self; + } catch (x) { + return true; + } + } + + /** + * Creates functions to query the DOM using a given method. + * + * @private + * @param {string} method + * The method to create the query with. + * + * @return {Function} + * The query method + */ + function createQuerier(method) { + return function (selector, context) { + if (!isNonBlankString(selector)) { + return document[method](null); + } + if (isNonBlankString(context)) { + context = document.querySelector(context); + } + const ctx = isEl(context) ? context : document; + return ctx[method] && ctx[method](selector); + }; + } + + /** + * Creates an element and applies properties, attributes, and inserts content. + * + * @param {string} [tagName='div'] + * Name of tag to be created. + * + * @param {Object} [properties={}] + * Element properties to be applied. + * + * @param {Object} [attributes={}] + * Element attributes to be applied. + * + * @param {ContentDescriptor} [content] + * A content descriptor object. + * + * @return {Element} + * The element that was created. + */ + function createEl(tagName = 'div', properties = {}, attributes = {}, content) { + const el = document.createElement(tagName); + Object.getOwnPropertyNames(properties).forEach(function (propName) { + const val = properties[propName]; + + // Handle textContent since it's not supported everywhere and we have a + // method for it. + if (propName === 'textContent') { + textContent(el, val); + } else if (el[propName] !== val || propName === 'tabIndex') { + el[propName] = val; + } + }); + Object.getOwnPropertyNames(attributes).forEach(function (attrName) { + el.setAttribute(attrName, attributes[attrName]); + }); + if (content) { + appendContent(el, content); + } + return el; + } + + /** + * Injects text into an element, replacing any existing contents entirely. + * + * @param {HTMLElement} el + * The element to add text content into + * + * @param {string} text + * The text content to add. + * + * @return {Element} + * The element with added text content. + */ + function textContent(el, text) { + if (typeof el.textContent === 'undefined') { + el.innerText = text; + } else { + el.textContent = text; + } + return el; + } + + /** + * Insert an element as the first child node of another + * + * @param {Element} child + * Element to insert + * + * @param {Element} parent + * Element to insert child into + */ + function prependTo(child, parent) { + if (parent.firstChild) { + parent.insertBefore(child, parent.firstChild); + } else { + parent.appendChild(child); + } + } + + /** + * Check if an element has a class name. + * + * @param {Element} element + * Element to check + * + * @param {string} classToCheck + * Class name to check for + * + * @return {boolean} + * Will be `true` if the element has a class, `false` otherwise. + * + * @throws {Error} + * Throws an error if `classToCheck` has white space. + */ + function hasClass(element, classToCheck) { + throwIfWhitespace(classToCheck); + return element.classList.contains(classToCheck); + } + + /** + * Add a class name to an element. + * + * @param {Element} element + * Element to add class name to. + * + * @param {...string} classesToAdd + * One or more class name to add. + * + * @return {Element} + * The DOM element with the added class name. + */ + function addClass(element, ...classesToAdd) { + element.classList.add(...classesToAdd.reduce((prev, current) => prev.concat(current.split(/\s+/)), [])); + return element; + } + + /** + * Remove a class name from an element. + * + * @param {Element} element + * Element to remove a class name from. + * + * @param {...string} classesToRemove + * One or more class name to remove. + * + * @return {Element} + * The DOM element with class name removed. + */ + function removeClass(element, ...classesToRemove) { + // Protect in case the player gets disposed + if (!element) { + log.warn("removeClass was called with an element that doesn't exist"); + return null; + } + element.classList.remove(...classesToRemove.reduce((prev, current) => prev.concat(current.split(/\s+/)), [])); + return element; + } + + /** + * The callback definition for toggleClass. + * + * @callback module:dom~PredicateCallback + * @param {Element} element + * The DOM element of the Component. + * + * @param {string} classToToggle + * The `className` that wants to be toggled + * + * @return {boolean|undefined} + * If `true` is returned, the `classToToggle` will be added to the + * `element`. If `false`, the `classToToggle` will be removed from + * the `element`. If `undefined`, the callback will be ignored. + */ + + /** + * Adds or removes a class name to/from an element depending on an optional + * condition or the presence/absence of the class name. + * + * @param {Element} element + * The element to toggle a class name on. + * + * @param {string} classToToggle + * The class that should be toggled. + * + * @param {boolean|module:dom~PredicateCallback} [predicate] + * See the return value for {@link module:dom~PredicateCallback} + * + * @return {Element} + * The element with a class that has been toggled. + */ + function toggleClass(element, classToToggle, predicate) { + if (typeof predicate === 'function') { + predicate = predicate(element, classToToggle); + } + if (typeof predicate !== 'boolean') { + predicate = undefined; + } + classToToggle.split(/\s+/).forEach(className => element.classList.toggle(className, predicate)); + return element; + } + + /** + * Apply attributes to an HTML element. + * + * @param {Element} el + * Element to add attributes to. + * + * @param {Object} [attributes] + * Attributes to be applied. + */ + function setAttributes(el, attributes) { + Object.getOwnPropertyNames(attributes).forEach(function (attrName) { + const attrValue = attributes[attrName]; + if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) { + el.removeAttribute(attrName); + } else { + el.setAttribute(attrName, attrValue === true ? '' : attrValue); + } + }); + } + + /** + * Get an element's attribute values, as defined on the HTML tag. + * + * Attributes are not the same as properties. They're defined on the tag + * or with setAttribute. + * + * @param {Element} tag + * Element from which to get tag attributes. + * + * @return {Object} + * All attributes of the element. Boolean attributes will be `true` or + * `false`, others will be strings. + */ + function getAttributes(tag) { + const obj = {}; + + // known boolean attributes + // we can check for matching boolean properties, but not all browsers + // and not all tags know about these attributes, so, we still want to check them manually + const knownBooleans = ['autoplay', 'controls', 'playsinline', 'loop', 'muted', 'default', 'defaultMuted']; + if (tag && tag.attributes && tag.attributes.length > 0) { + const attrs = tag.attributes; + for (let i = attrs.length - 1; i >= 0; i--) { + const attrName = attrs[i].name; + /** @type {boolean|string} */ + let attrVal = attrs[i].value; + + // check for known booleans + // the matching element property will return a value for typeof + if (knownBooleans.includes(attrName)) { + // the value of an included boolean attribute is typically an empty + // string ('') which would equal false if we just check for a false value. + // we also don't want support bad code like autoplay='false' + attrVal = attrVal !== null ? true : false; + } + obj[attrName] = attrVal; + } + } + return obj; + } + + /** + * Get the value of an element's attribute. + * + * @param {Element} el + * A DOM element. + * + * @param {string} attribute + * Attribute to get the value of. + * + * @return {string} + * The value of the attribute. + */ + function getAttribute(el, attribute) { + return el.getAttribute(attribute); + } + + /** + * Set the value of an element's attribute. + * + * @param {Element} el + * A DOM element. + * + * @param {string} attribute + * Attribute to set. + * + * @param {string} value + * Value to set the attribute to. + */ + function setAttribute(el, attribute, value) { + el.setAttribute(attribute, value); + } + + /** + * Remove an element's attribute. + * + * @param {Element} el + * A DOM element. + * + * @param {string} attribute + * Attribute to remove. + */ + function removeAttribute(el, attribute) { + el.removeAttribute(attribute); + } + + /** + * Attempt to block the ability to select text. + */ + function blockTextSelection() { + document.body.focus(); + document.onselectstart = function () { + return false; + }; + } + + /** + * Turn off text selection blocking. + */ + function unblockTextSelection() { + document.onselectstart = function () { + return true; + }; + } + + /** + * Identical to the native `getBoundingClientRect` function, but ensures that + * the method is supported at all (it is in all browsers we claim to support) + * and that the element is in the DOM before continuing. + * + * This wrapper function also shims properties which are not provided by some + * older browsers (namely, IE8). + * + * Additionally, some browsers do not support adding properties to a + * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard + * properties (except `x` and `y` which are not widely supported). This helps + * avoid implementations where keys are non-enumerable. + * + * @param {Element} el + * Element whose `ClientRect` we want to calculate. + * + * @return {Object|undefined} + * Always returns a plain object - or `undefined` if it cannot. + */ + function getBoundingClientRect(el) { + if (el && el.getBoundingClientRect && el.parentNode) { + const rect = el.getBoundingClientRect(); + const result = {}; + ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(k => { + if (rect[k] !== undefined) { + result[k] = rect[k]; + } + }); + if (!result.height) { + result.height = parseFloat(computedStyle(el, 'height')); + } + if (!result.width) { + result.width = parseFloat(computedStyle(el, 'width')); + } + return result; + } + } + + /** + * Represents the position of a DOM element on the page. + * + * @typedef {Object} module:dom~Position + * + * @property {number} left + * Pixels to the left. + * + * @property {number} top + * Pixels from the top. + */ + + /** + * Get the position of an element in the DOM. + * + * Uses `getBoundingClientRect` technique from John Resig. + * + * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/ + * + * @param {Element} el + * Element from which to get offset. + * + * @return {module:dom~Position} + * The position of the element that was passed in. + */ + function findPosition(el) { + if (!el || el && !el.offsetParent) { + return { + left: 0, + top: 0, + width: 0, + height: 0 + }; + } + const width = el.offsetWidth; + const height = el.offsetHeight; + let left = 0; + let top = 0; + while (el.offsetParent && el !== document[FullscreenApi.fullscreenElement]) { + left += el.offsetLeft; + top += el.offsetTop; + el = el.offsetParent; + } + return { + left, + top, + width, + height + }; + } + + /** + * Represents x and y coordinates for a DOM element or mouse pointer. + * + * @typedef {Object} module:dom~Coordinates + * + * @property {number} x + * x coordinate in pixels + * + * @property {number} y + * y coordinate in pixels + */ + + /** + * Get the pointer position within an element. + * + * The base on the coordinates are the bottom left of the element. + * + * @param {Element} el + * Element on which to get the pointer position on. + * + * @param {Event} event + * Event object. + * + * @return {module:dom~Coordinates} + * A coordinates object corresponding to the mouse position. + * + */ + function getPointerPosition(el, event) { + const translated = { + x: 0, + y: 0 + }; + if (IS_IOS) { + let item = el; + while (item && item.nodeName.toLowerCase() !== 'html') { + const transform = computedStyle(item, 'transform'); + if (/^matrix/.test(transform)) { + const values = transform.slice(7, -1).split(/,\s/).map(Number); + translated.x += values[4]; + translated.y += values[5]; + } else if (/^matrix3d/.test(transform)) { + const values = transform.slice(9, -1).split(/,\s/).map(Number); + translated.x += values[12]; + translated.y += values[13]; + } + item = item.parentNode; + } + } + const position = {}; + const boxTarget = findPosition(event.target); + const box = findPosition(el); + const boxW = box.width; + const boxH = box.height; + let offsetY = event.offsetY - (box.top - boxTarget.top); + let offsetX = event.offsetX - (box.left - boxTarget.left); + if (event.changedTouches) { + offsetX = event.changedTouches[0].pageX - box.left; + offsetY = event.changedTouches[0].pageY + box.top; + if (IS_IOS) { + offsetX -= translated.x; + offsetY -= translated.y; + } + } + position.y = 1 - Math.max(0, Math.min(1, offsetY / boxH)); + position.x = Math.max(0, Math.min(1, offsetX / boxW)); + return position; + } + + /** + * Determines, via duck typing, whether or not a value is a text node. + * + * @param {*} value + * Check if this value is a text node. + * + * @return {boolean} + * Will be `true` if the value is a text node, `false` otherwise. + */ + function isTextNode(value) { + return isObject(value) && value.nodeType === 3; + } + + /** + * Empties the contents of an element. + * + * @param {Element} el + * The element to empty children from + * + * @return {Element} + * The element with no children + */ + function emptyEl(el) { + while (el.firstChild) { + el.removeChild(el.firstChild); + } + return el; + } + + /** + * This is a mixed value that describes content to be injected into the DOM + * via some method. It can be of the following types: + * + * Type | Description + * -----------|------------- + * `string` | The value will be normalized into a text node. + * `Element` | The value will be accepted as-is. + * `Text` | A TextNode. The value will be accepted as-is. + * `Array` | A one-dimensional array of strings, elements, text nodes, or functions. These functions should return a string, element, or text node (any other return value, like an array, will be ignored). + * `Function` | A function, which is expected to return a string, element, text node, or array - any of the other possible values described above. This means that a content descriptor could be a function that returns an array of functions, but those second-level functions must return strings, elements, or text nodes. + * + * @typedef {string|Element|Text|Array|Function} ContentDescriptor + */ + + /** + * Normalizes content for eventual insertion into the DOM. + * + * This allows a wide range of content definition methods, but helps protect + * from falling into the trap of simply writing to `innerHTML`, which could + * be an XSS concern. + * + * The content for an element can be passed in multiple types and + * combinations, whose behavior is as follows: + * + * @param {ContentDescriptor} content + * A content descriptor value. + * + * @return {Array} + * All of the content that was passed in, normalized to an array of + * elements or text nodes. + */ + function normalizeContent(content) { + // First, invoke content if it is a function. If it produces an array, + // that needs to happen before normalization. + if (typeof content === 'function') { + content = content(); + } + + // Next up, normalize to an array, so one or many items can be normalized, + // filtered, and returned. + return (Array.isArray(content) ? content : [content]).map(value => { + // First, invoke value if it is a function to produce a new value, + // which will be subsequently normalized to a Node of some kind. + if (typeof value === 'function') { + value = value(); + } + if (isEl(value) || isTextNode(value)) { + return value; + } + if (typeof value === 'string' && /\S/.test(value)) { + return document.createTextNode(value); + } + }).filter(value => value); + } + + /** + * Normalizes and appends content to an element. + * + * @param {Element} el + * Element to append normalized content to. + * + * @param {ContentDescriptor} content + * A content descriptor value. + * + * @return {Element} + * The element with appended normalized content. + */ + function appendContent(el, content) { + normalizeContent(content).forEach(node => el.appendChild(node)); + return el; + } + + /** + * Normalizes and inserts content into an element; this is identical to + * `appendContent()`, except it empties the element first. + * + * @param {Element} el + * Element to insert normalized content into. + * + * @param {ContentDescriptor} content + * A content descriptor value. + * + * @return {Element} + * The element with inserted normalized content. + */ + function insertContent(el, content) { + return appendContent(emptyEl(el), content); + } + + /** + * Check if an event was a single left click. + * + * @param {MouseEvent} event + * Event object. + * + * @return {boolean} + * Will be `true` if a single left click, `false` otherwise. + */ + function isSingleLeftClick(event) { + // Note: if you create something draggable, be sure to + // call it on both `mousedown` and `mousemove` event, + // otherwise `mousedown` should be enough for a button + + if (event.button === undefined && event.buttons === undefined) { + // Why do we need `buttons` ? + // Because, middle mouse sometimes have this: + // e.button === 0 and e.buttons === 4 + // Furthermore, we want to prevent combination click, something like + // HOLD middlemouse then left click, that would be + // e.button === 0, e.buttons === 5 + // just `button` is not gonna work + + // Alright, then what this block does ? + // this is for chrome `simulate mobile devices` + // I want to support this as well + + return true; + } + if (event.button === 0 && event.buttons === undefined) { + // Touch screen, sometimes on some specific device, `buttons` + // doesn't have anything (safari on ios, blackberry...) + + return true; + } + + // `mouseup` event on a single left click has + // `button` and `buttons` equal to 0 + if (event.type === 'mouseup' && event.button === 0 && event.buttons === 0) { + return true; + } + if (event.button !== 0 || event.buttons !== 1) { + // This is the reason we have those if else block above + // if any special case we can catch and let it slide + // we do it above, when get to here, this definitely + // is-not-left-click + + return false; + } + return true; + } + + /** + * Finds a single DOM element matching `selector` within the optional + * `context` of another DOM element (defaulting to `document`). + * + * @param {string} selector + * A valid CSS selector, which will be passed to `querySelector`. + * + * @param {Element|String} [context=document] + * A DOM element within which to query. Can also be a selector + * string in which case the first matching element will be used + * as context. If missing (or no element matches selector), falls + * back to `document`. + * + * @return {Element|null} + * The element that was found or null. + */ + const $ = createQuerier('querySelector'); + + /** + * Finds a all DOM elements matching `selector` within the optional + * `context` of another DOM element (defaulting to `document`). + * + * @param {string} selector + * A valid CSS selector, which will be passed to `querySelectorAll`. + * + * @param {Element|String} [context=document] + * A DOM element within which to query. Can also be a selector + * string in which case the first matching element will be used + * as context. If missing (or no element matches selector), falls + * back to `document`. + * + * @return {NodeList} + * A element list of elements that were found. Will be empty if none + * were found. + * + */ + const $$ = createQuerier('querySelectorAll'); + + /** + * A safe getComputedStyle. + * + * This is needed because in Firefox, if the player is loaded in an iframe with + * `display:none`, then `getComputedStyle` returns `null`, so, we do a + * null-check to make sure that the player doesn't break in these cases. + * + * @param {Element} el + * The element you want the computed style of + * + * @param {string} prop + * The property name you want + * + * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397 + */ + function computedStyle(el, prop) { + if (!el || !prop) { + return ''; + } + if (typeof window.getComputedStyle === 'function') { + let computedStyleValue; + try { + computedStyleValue = window.getComputedStyle(el); + } catch (e) { + return ''; + } + return computedStyleValue ? computedStyleValue.getPropertyValue(prop) || computedStyleValue[prop] : ''; + } + return ''; + } + + /** + * Copy document style sheets to another window. + * + * @param {Window} win + * The window element you want to copy the document style sheets to. + * + */ + function copyStyleSheetsToWindow(win) { + [...document.styleSheets].forEach(styleSheet => { + try { + const cssRules = [...styleSheet.cssRules].map(rule => rule.cssText).join(''); + const style = document.createElement('style'); + style.textContent = cssRules; + win.document.head.appendChild(style); + } catch (e) { + const link = document.createElement('link'); + link.rel = 'stylesheet'; + link.type = styleSheet.type; + // For older Safari this has to be the string; on other browsers setting the MediaList works + link.media = styleSheet.media.mediaText; + link.href = styleSheet.href; + win.document.head.appendChild(link); + } + }); + } + + var Dom = /*#__PURE__*/Object.freeze({ + __proto__: null, + isReal: isReal, + isEl: isEl, + isInFrame: isInFrame, + createEl: createEl, + textContent: textContent, + prependTo: prependTo, + hasClass: hasClass, + addClass: addClass, + removeClass: removeClass, + toggleClass: toggleClass, + setAttributes: setAttributes, + getAttributes: getAttributes, + getAttribute: getAttribute, + setAttribute: setAttribute, + removeAttribute: removeAttribute, + blockTextSelection: blockTextSelection, + unblockTextSelection: unblockTextSelection, + getBoundingClientRect: getBoundingClientRect, + findPosition: findPosition, + getPointerPosition: getPointerPosition, + isTextNode: isTextNode, + emptyEl: emptyEl, + normalizeContent: normalizeContent, + appendContent: appendContent, + insertContent: insertContent, + isSingleLeftClick: isSingleLeftClick, + $: $, + $$: $$, + computedStyle: computedStyle, + copyStyleSheetsToWindow: copyStyleSheetsToWindow + }); + + /** + * @file setup.js - Functions for setting up a player without + * user interaction based on the data-setup `attribute` of the video tag. + * + * @module setup + */ + let _windowLoaded = false; + let videojs$1; + + /** + * Set up any tags that have a data-setup `attribute` when the player is started. + */ + const autoSetup = function () { + if (videojs$1.options.autoSetup === false) { + return; + } + const vids = Array.prototype.slice.call(document.getElementsByTagName('video')); + const audios = Array.prototype.slice.call(document.getElementsByTagName('audio')); + const divs = Array.prototype.slice.call(document.getElementsByTagName('video-js')); + const mediaEls = vids.concat(audios, divs); + + // Check if any media elements exist + if (mediaEls && mediaEls.length > 0) { + for (let i = 0, e = mediaEls.length; i < e; i++) { + const mediaEl = mediaEls[i]; + + // Check if element exists, has getAttribute func. + if (mediaEl && mediaEl.getAttribute) { + // Make sure this player hasn't already been set up. + if (mediaEl.player === undefined) { + const options = mediaEl.getAttribute('data-setup'); + + // Check if data-setup attr exists. + // We only auto-setup if they've added the data-setup attr. + if (options !== null) { + // Create new video.js instance. + videojs$1(mediaEl); + } + } + + // If getAttribute isn't defined, we need to wait for the DOM. + } else { + autoSetupTimeout(1); + break; + } + } + + // No videos were found, so keep looping unless page is finished loading. + } else if (!_windowLoaded) { + autoSetupTimeout(1); + } + }; + + /** + * Wait until the page is loaded before running autoSetup. This will be called in + * autoSetup if `hasLoaded` returns false. + * + * @param {number} wait + * How long to wait in ms + * + * @param {module:videojs} [vjs] + * The videojs library function + */ + function autoSetupTimeout(wait, vjs) { + // Protect against breakage in non-browser environments + if (!isReal()) { + return; + } + if (vjs) { + videojs$1 = vjs; + } + window.setTimeout(autoSetup, wait); + } + + /** + * Used to set the internal tracking of window loaded state to true. + * + * @private + */ + function setWindowLoaded() { + _windowLoaded = true; + window.removeEventListener('load', setWindowLoaded); + } + if (isReal()) { + if (document.readyState === 'complete') { + setWindowLoaded(); + } else { + /** + * Listen for the load event on window, and set _windowLoaded to true. + * + * We use a standard event listener here to avoid incrementing the GUID + * before any players are created. + * + * @listens load + */ + window.addEventListener('load', setWindowLoaded); + } + } + + /** + * @file stylesheet.js + * @module stylesheet + */ + + /** + * Create a DOM style element given a className for it. + * + * @param {string} className + * The className to add to the created style element. + * + * @return {Element} + * The element that was created. + */ + const createStyleElement = function (className) { + const style = document.createElement('style'); + style.className = className; + return style; + }; + + /** + * Add text to a DOM element. + * + * @param {Element} el + * The Element to add text content to. + * + * @param {string} content + * The text to add to the element. + */ + const setTextContent = function (el, content) { + if (el.styleSheet) { + el.styleSheet.cssText = content; + } else { + el.textContent = content; + } + }; + + /** + * @file dom-data.js + * @module dom-data + */ + + /** + * Element Data Store. + * + * Allows for binding data to an element without putting it directly on the + * element. Ex. Event listeners are stored here. + * (also from jsninja.com, slightly modified and updated for closure compiler) + * + * @type {Object} + * @private + */ + var DomData = new WeakMap(); + + /** + * @file guid.js + * @module guid + */ + + // Default value for GUIDs. This allows us to reset the GUID counter in tests. + // + // The initial GUID is 3 because some users have come to rely on the first + // default player ID ending up as `vjs_video_3`. + // + // See: https://github.com/videojs/video.js/pull/6216 + const _initialGuid = 3; + + /** + * Unique ID for an element or function + * + * @type {Number} + */ + let _guid = _initialGuid; + + /** + * Get a unique auto-incrementing ID by number that has not been returned before. + * + * @return {number} + * A new unique ID. + */ + function newGUID() { + return _guid++; + } + + /** + * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/) + * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible) + * This should work very similarly to jQuery's events, however it's based off the book version which isn't as + * robust as jquery's, so there's probably some differences. + * + * @file events.js + * @module events + */ + + /** + * Clean up the listener cache and dispatchers + * + * @param {Element|Object} elem + * Element to clean up + * + * @param {string} type + * Type of event to clean up + */ + function _cleanUpEvents(elem, type) { + if (!DomData.has(elem)) { + return; + } + const data = DomData.get(elem); + + // Remove the events of a particular type if there are none left + if (data.handlers[type].length === 0) { + delete data.handlers[type]; + // data.handlers[type] = null; + // Setting to null was causing an error with data.handlers + + // Remove the meta-handler from the element + if (elem.removeEventListener) { + elem.removeEventListener(type, data.dispatcher, false); + } else if (elem.detachEvent) { + elem.detachEvent('on' + type, data.dispatcher); + } + } + + // Remove the events object if there are no types left + if (Object.getOwnPropertyNames(data.handlers).length <= 0) { + delete data.handlers; + delete data.dispatcher; + delete data.disabled; + } + + // Finally remove the element data if there is no data left + if (Object.getOwnPropertyNames(data).length === 0) { + DomData.delete(elem); + } + } + + /** + * Loops through an array of event types and calls the requested method for each type. + * + * @param {Function} fn + * The event method we want to use. + * + * @param {Element|Object} elem + * Element or object to bind listeners to + * + * @param {string[]} types + * Type of event to bind to. + * + * @param {Function} callback + * Event listener. + */ + function _handleMultipleEvents(fn, elem, types, callback) { + types.forEach(function (type) { + // Call the event method for each one of the types + fn(elem, type, callback); + }); + } + + /** + * Fix a native event to have standard property values + * + * @param {Object} event + * Event object to fix. + * + * @return {Object} + * Fixed event object. + */ + function fixEvent(event) { + if (event.fixed_) { + return event; + } + function returnTrue() { + return true; + } + function returnFalse() { + return false; + } + + // Test if fixing up is needed + // Used to check if !event.stopPropagation instead of isPropagationStopped + // But native events return true for stopPropagation, but don't have + // other expected methods like isPropagationStopped. Seems to be a problem + // with the Javascript Ninja code. So we're just overriding all events now. + if (!event || !event.isPropagationStopped || !event.isImmediatePropagationStopped) { + const old = event || window.event; + event = {}; + // Clone the old object so that we can modify the values event = {}; + // IE8 Doesn't like when you mess with native event properties + // Firefox returns false for event.hasOwnProperty('type') and other props + // which makes copying more difficult. + // TODO: Probably best to create a whitelist of event props + for (const key in old) { + // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y + // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation + // and webkitMovementX/Y + // Lighthouse complains if Event.path is copied + if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY' && key !== 'path') { + // Chrome 32+ warns if you try to copy deprecated returnValue, but + // we still want to if preventDefault isn't supported (IE8). + if (!(key === 'returnValue' && old.preventDefault)) { + event[key] = old[key]; + } + } + } + + // The event occurred on this element + if (!event.target) { + event.target = event.srcElement || document; + } + + // Handle which other element the event is related to + if (!event.relatedTarget) { + event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement; + } + + // Stop the default browser action + event.preventDefault = function () { + if (old.preventDefault) { + old.preventDefault(); + } + event.returnValue = false; + old.returnValue = false; + event.defaultPrevented = true; + }; + event.defaultPrevented = false; + + // Stop the event from bubbling + event.stopPropagation = function () { + if (old.stopPropagation) { + old.stopPropagation(); + } + event.cancelBubble = true; + old.cancelBubble = true; + event.isPropagationStopped = returnTrue; + }; + event.isPropagationStopped = returnFalse; + + // Stop the event from bubbling and executing other handlers + event.stopImmediatePropagation = function () { + if (old.stopImmediatePropagation) { + old.stopImmediatePropagation(); + } + event.isImmediatePropagationStopped = returnTrue; + event.stopPropagation(); + }; + event.isImmediatePropagationStopped = returnFalse; + + // Handle mouse position + if (event.clientX !== null && event.clientX !== undefined) { + const doc = document.documentElement; + const body = document.body; + event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0); + event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0); + } + + // Handle key presses + event.which = event.charCode || event.keyCode; + + // Fix button for mouse clicks: + // 0 == left; 1 == middle; 2 == right + if (event.button !== null && event.button !== undefined) { + // The following is disabled because it does not pass videojs-standard + // and... yikes. + /* eslint-disable */ + event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0; + /* eslint-enable */ + } + } + + event.fixed_ = true; + // Returns fixed-up instance + return event; + } + + /** + * Whether passive event listeners are supported + */ + let _supportsPassive; + const supportsPassive = function () { + if (typeof _supportsPassive !== 'boolean') { + _supportsPassive = false; + try { + const opts = Object.defineProperty({}, 'passive', { + get() { + _supportsPassive = true; + } + }); + window.addEventListener('test', null, opts); + window.removeEventListener('test', null, opts); + } catch (e) { + // disregard + } + } + return _supportsPassive; + }; + + /** + * Touch events Chrome expects to be passive + */ + const passiveEvents = ['touchstart', 'touchmove']; + + /** + * Add an event listener to element + * It stores the handler function in a separate cache object + * and adds a generic handler to the element's event, + * along with a unique id (guid) to the element. + * + * @param {Element|Object} elem + * Element or object to bind listeners to + * + * @param {string|string[]} type + * Type of event to bind to. + * + * @param {Function} fn + * Event listener. + */ + function on(elem, type, fn) { + if (Array.isArray(type)) { + return _handleMultipleEvents(on, elem, type, fn); + } + if (!DomData.has(elem)) { + DomData.set(elem, {}); + } + const data = DomData.get(elem); + + // We need a place to store all our handler data + if (!data.handlers) { + data.handlers = {}; + } + if (!data.handlers[type]) { + data.handlers[type] = []; + } + if (!fn.guid) { + fn.guid = newGUID(); + } + data.handlers[type].push(fn); + if (!data.dispatcher) { + data.disabled = false; + data.dispatcher = function (event, hash) { + if (data.disabled) { + return; + } + event = fixEvent(event); + const handlers = data.handlers[event.type]; + if (handlers) { + // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off. + const handlersCopy = handlers.slice(0); + for (let m = 0, n = handlersCopy.length; m < n; m++) { + if (event.isImmediatePropagationStopped()) { + break; + } else { + try { + handlersCopy[m].call(elem, event, hash); + } catch (e) { + log.error(e); + } + } + } + } + }; + } + if (data.handlers[type].length === 1) { + if (elem.addEventListener) { + let options = false; + if (supportsPassive() && passiveEvents.indexOf(type) > -1) { + options = { + passive: true + }; + } + elem.addEventListener(type, data.dispatcher, options); + } else if (elem.attachEvent) { + elem.attachEvent('on' + type, data.dispatcher); + } + } + } + + /** + * Removes event listeners from an element + * + * @param {Element|Object} elem + * Object to remove listeners from. + * + * @param {string|string[]} [type] + * Type of listener to remove. Don't include to remove all events from element. + * + * @param {Function} [fn] + * Specific listener to remove. Don't include to remove listeners for an event + * type. + */ + function off(elem, type, fn) { + // Don't want to add a cache object through getElData if not needed + if (!DomData.has(elem)) { + return; + } + const data = DomData.get(elem); + + // If no events exist, nothing to unbind + if (!data.handlers) { + return; + } + if (Array.isArray(type)) { + return _handleMultipleEvents(off, elem, type, fn); + } + + // Utility function + const removeType = function (el, t) { + data.handlers[t] = []; + _cleanUpEvents(el, t); + }; + + // Are we removing all bound events? + if (type === undefined) { + for (const t in data.handlers) { + if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) { + removeType(elem, t); + } + } + return; + } + const handlers = data.handlers[type]; + + // If no handlers exist, nothing to unbind + if (!handlers) { + return; + } + + // If no listener was provided, remove all listeners for type + if (!fn) { + removeType(elem, type); + return; + } + + // We're only removing a single handler + if (fn.guid) { + for (let n = 0; n < handlers.length; n++) { + if (handlers[n].guid === fn.guid) { + handlers.splice(n--, 1); + } + } + } + _cleanUpEvents(elem, type); + } + + /** + * Trigger an event for an element + * + * @param {Element|Object} elem + * Element to trigger an event on + * + * @param {EventTarget~Event|string} event + * A string (the type) or an event object with a type attribute + * + * @param {Object} [hash] + * data hash to pass along with the event + * + * @return {boolean|undefined} + * Returns the opposite of `defaultPrevented` if default was + * prevented. Otherwise, returns `undefined` + */ + function trigger(elem, event, hash) { + // Fetches element data and a reference to the parent (for bubbling). + // Don't want to add a data object to cache for every parent, + // so checking hasElData first. + const elemData = DomData.has(elem) ? DomData.get(elem) : {}; + const parent = elem.parentNode || elem.ownerDocument; + // type = event.type || event, + // handler; + + // If an event name was passed as a string, creates an event out of it + if (typeof event === 'string') { + event = { + type: event, + target: elem + }; + } else if (!event.target) { + event.target = elem; + } + + // Normalizes the event properties. + event = fixEvent(event); + + // If the passed element has a dispatcher, executes the established handlers. + if (elemData.dispatcher) { + elemData.dispatcher.call(elem, event, hash); + } + + // Unless explicitly stopped or the event does not bubble (e.g. media events) + // recursively calls this function to bubble the event up the DOM. + if (parent && !event.isPropagationStopped() && event.bubbles === true) { + trigger.call(null, parent, event, hash); + + // If at the top of the DOM, triggers the default action unless disabled. + } else if (!parent && !event.defaultPrevented && event.target && event.target[event.type]) { + if (!DomData.has(event.target)) { + DomData.set(event.target, {}); + } + const targetData = DomData.get(event.target); + + // Checks if the target has a default action for this event. + if (event.target[event.type]) { + // Temporarily disables event dispatching on the target as we have already executed the handler. + targetData.disabled = true; + // Executes the default action. + if (typeof event.target[event.type] === 'function') { + event.target[event.type](); + } + // Re-enables event dispatching. + targetData.disabled = false; + } + } + + // Inform the triggerer if the default was prevented by returning false + return !event.defaultPrevented; + } + + /** + * Trigger a listener only once for an event. + * + * @param {Element|Object} elem + * Element or object to bind to. + * + * @param {string|string[]} type + * Name/type of event + * + * @param {Event~EventListener} fn + * Event listener function + */ + function one(elem, type, fn) { + if (Array.isArray(type)) { + return _handleMultipleEvents(one, elem, type, fn); + } + const func = function () { + off(elem, type, func); + fn.apply(this, arguments); + }; + + // copy the guid to the new function so it can removed using the original function's ID + func.guid = fn.guid = fn.guid || newGUID(); + on(elem, type, func); + } + + /** + * Trigger a listener only once and then turn if off for all + * configured events + * + * @param {Element|Object} elem + * Element or object to bind to. + * + * @param {string|string[]} type + * Name/type of event + * + * @param {Event~EventListener} fn + * Event listener function + */ + function any(elem, type, fn) { + const func = function () { + off(elem, type, func); + fn.apply(this, arguments); + }; + + // copy the guid to the new function so it can removed using the original function's ID + func.guid = fn.guid = fn.guid || newGUID(); + + // multiple ons, but one off for everything + on(elem, type, func); + } + + var Events = /*#__PURE__*/Object.freeze({ + __proto__: null, + fixEvent: fixEvent, + on: on, + off: off, + trigger: trigger, + one: one, + any: any + }); + + /** + * @file fn.js + * @module fn + */ + const UPDATE_REFRESH_INTERVAL = 30; + + /** + * A private, internal-only function for changing the context of a function. + * + * It also stores a unique id on the function so it can be easily removed from + * events. + * + * @private + * @function + * @param {*} context + * The object to bind as scope. + * + * @param {Function} fn + * The function to be bound to a scope. + * + * @param {number} [uid] + * An optional unique ID for the function to be set + * + * @return {Function} + * The new function that will be bound into the context given + */ + const bind_ = function (context, fn, uid) { + // Make sure the function has a unique ID + if (!fn.guid) { + fn.guid = newGUID(); + } + + // Create the new function that changes the context + const bound = fn.bind(context); + + // Allow for the ability to individualize this function + // Needed in the case where multiple objects might share the same prototype + // IF both items add an event listener with the same function, then you try to remove just one + // it will remove both because they both have the same guid. + // when using this, you need to use the bind method when you remove the listener as well. + // currently used in text tracks + bound.guid = uid ? uid + '_' + fn.guid : fn.guid; + return bound; + }; + + /** + * Wraps the given function, `fn`, with a new function that only invokes `fn` + * at most once per every `wait` milliseconds. + * + * @function + * @param {Function} fn + * The function to be throttled. + * + * @param {number} wait + * The number of milliseconds by which to throttle. + * + * @return {Function} + */ + const throttle = function (fn, wait) { + let last = window.performance.now(); + const throttled = function (...args) { + const now = window.performance.now(); + if (now - last >= wait) { + fn(...args); + last = now; + } + }; + return throttled; + }; + + /** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. + * + * Inspired by lodash and underscore implementations. + * + * @function + * @param {Function} func + * The function to wrap with debounce behavior. + * + * @param {number} wait + * The number of milliseconds to wait after the last invocation. + * + * @param {boolean} [immediate] + * Whether or not to invoke the function immediately upon creation. + * + * @param {Object} [context=window] + * The "context" in which the debounced function should debounce. For + * example, if this function should be tied to a Video.js player, + * the player can be passed here. Alternatively, defaults to the + * global `window` object. + * + * @return {Function} + * A debounced function. + */ + const debounce = function (func, wait, immediate, context = window) { + let timeout; + const cancel = () => { + context.clearTimeout(timeout); + timeout = null; + }; + + /* eslint-disable consistent-this */ + const debounced = function () { + const self = this; + const args = arguments; + let later = function () { + timeout = null; + later = null; + if (!immediate) { + func.apply(self, args); + } + }; + if (!timeout && immediate) { + func.apply(self, args); + } + context.clearTimeout(timeout); + timeout = context.setTimeout(later, wait); + }; + /* eslint-enable consistent-this */ + + debounced.cancel = cancel; + return debounced; + }; + + var Fn = /*#__PURE__*/Object.freeze({ + __proto__: null, + UPDATE_REFRESH_INTERVAL: UPDATE_REFRESH_INTERVAL, + bind_: bind_, + throttle: throttle, + debounce: debounce + }); + + /** + * @file src/js/event-target.js + */ + let EVENT_MAP; + + /** + * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It + * adds shorthand functions that wrap around lengthy functions. For example: + * the `on` function is a wrapper around `addEventListener`. + * + * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget} + * @class EventTarget + */ + class EventTarget { + /** + * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a + * function that will get called when an event with a certain name gets triggered. + * + * @param {string|string[]} type + * An event name or an array of event names. + * + * @param {Function} fn + * The function to call with `EventTarget`s + */ + on(type, fn) { + // Remove the addEventListener alias before calling Events.on + // so we don't get into an infinite type loop + const ael = this.addEventListener; + this.addEventListener = () => {}; + on(this, type, fn); + this.addEventListener = ael; + } + /** + * Removes an `event listener` for a specific event from an instance of `EventTarget`. + * This makes it so that the `event listener` will no longer get called when the + * named event happens. + * + * @param {string|string[]} type + * An event name or an array of event names. + * + * @param {Function} fn + * The function to remove. + */ + off(type, fn) { + off(this, type, fn); + } + /** + * This function will add an `event listener` that gets triggered only once. After the + * first trigger it will get removed. This is like adding an `event listener` + * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself. + * + * @param {string|string[]} type + * An event name or an array of event names. + * + * @param {Function} fn + * The function to be called once for each event name. + */ + one(type, fn) { + // Remove the addEventListener aliasing Events.on + // so we don't get into an infinite type loop + const ael = this.addEventListener; + this.addEventListener = () => {}; + one(this, type, fn); + this.addEventListener = ael; + } + /** + * This function will add an `event listener` that gets triggered only once and is + * removed from all events. This is like adding an array of `event listener`s + * with {@link EventTarget#on} that calls {@link EventTarget#off} on all events the + * first time it is triggered. + * + * @param {string|string[]} type + * An event name or an array of event names. + * + * @param {Function} fn + * The function to be called once for each event name. + */ + any(type, fn) { + // Remove the addEventListener aliasing Events.on + // so we don't get into an infinite type loop + const ael = this.addEventListener; + this.addEventListener = () => {}; + any(this, type, fn); + this.addEventListener = ael; + } + /** + * This function causes an event to happen. This will then cause any `event listeners` + * that are waiting for that event, to get called. If there are no `event listeners` + * for an event then nothing will happen. + * + * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`. + * Trigger will also call the `on` + `uppercaseEventName` function. + * + * Example: + * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call + * `onClick` if it exists. + * + * @param {string|EventTarget~Event|Object} event + * The name of the event, an `Event`, or an object with a key of type set to + * an event name. + */ + trigger(event) { + const type = event.type || event; + + // deprecation + // In a future version we should default target to `this` + // similar to how we default the target to `elem` in + // `Events.trigger`. Right now the default `target` will be + // `document` due to the `Event.fixEvent` call. + if (typeof event === 'string') { + event = { + type + }; + } + event = fixEvent(event); + if (this.allowedEvents_[type] && this['on' + type]) { + this['on' + type](event); + } + trigger(this, event); + } + queueTrigger(event) { + // only set up EVENT_MAP if it'll be used + if (!EVENT_MAP) { + EVENT_MAP = new Map(); + } + const type = event.type || event; + let map = EVENT_MAP.get(this); + if (!map) { + map = new Map(); + EVENT_MAP.set(this, map); + } + const oldTimeout = map.get(type); + map.delete(type); + window.clearTimeout(oldTimeout); + const timeout = window.setTimeout(() => { + map.delete(type); + // if we cleared out all timeouts for the current target, delete its map + if (map.size === 0) { + map = null; + EVENT_MAP.delete(this); + } + this.trigger(event); + }, 0); + map.set(type, timeout); + } + } + + /** + * A Custom DOM event. + * + * @typedef {CustomEvent} Event + * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent} + */ + + /** + * All event listeners should follow the following format. + * + * @callback EventListener + * @this {EventTarget} + * + * @param {Event} event + * the event that triggered this function + * + * @param {Object} [hash] + * hash of data sent during the event + */ + + /** + * An object containing event names as keys and booleans as values. + * + * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger} + * will have extra functionality. See that function for more information. + * + * @property EventTarget.prototype.allowedEvents_ + * @protected + */ + EventTarget.prototype.allowedEvents_ = {}; + + /** + * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic + * the standard DOM API. + * + * @function + * @see {@link EventTarget#on} + */ + EventTarget.prototype.addEventListener = EventTarget.prototype.on; + + /** + * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic + * the standard DOM API. + * + * @function + * @see {@link EventTarget#off} + */ + EventTarget.prototype.removeEventListener = EventTarget.prototype.off; + + /** + * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic + * the standard DOM API. + * + * @function + * @see {@link EventTarget#trigger} + */ + EventTarget.prototype.dispatchEvent = EventTarget.prototype.trigger; + + /** + * @file mixins/evented.js + * @module evented + */ + const objName = obj => { + if (typeof obj.name === 'function') { + return obj.name(); + } + if (typeof obj.name === 'string') { + return obj.name; + } + if (obj.name_) { + return obj.name_; + } + if (obj.constructor && obj.constructor.name) { + return obj.constructor.name; + } + return typeof obj; + }; + + /** + * Returns whether or not an object has had the evented mixin applied. + * + * @param {Object} object + * An object to test. + * + * @return {boolean} + * Whether or not the object appears to be evented. + */ + const isEvented = object => object instanceof EventTarget || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(k => typeof object[k] === 'function'); + + /** + * Adds a callback to run after the evented mixin applied. + * + * @param {Object} target + * An object to Add + * @param {Function} callback + * The callback to run. + */ + const addEventedCallback = (target, callback) => { + if (isEvented(target)) { + callback(); + } else { + if (!target.eventedCallbacks) { + target.eventedCallbacks = []; + } + target.eventedCallbacks.push(callback); + } + }; + + /** + * Whether a value is a valid event type - non-empty string or array. + * + * @private + * @param {string|Array} type + * The type value to test. + * + * @return {boolean} + * Whether or not the type is a valid event type. + */ + const isValidEventType = type => + // The regex here verifies that the `type` contains at least one non- + // whitespace character. + typeof type === 'string' && /\S/.test(type) || Array.isArray(type) && !!type.length; + + /** + * Validates a value to determine if it is a valid event target. Throws if not. + * + * @private + * @throws {Error} + * If the target does not appear to be a valid event target. + * + * @param {Object} target + * The object to test. + * + * @param {Object} obj + * The evented object we are validating for + * + * @param {string} fnName + * The name of the evented mixin function that called this. + */ + const validateTarget = (target, obj, fnName) => { + if (!target || !target.nodeName && !isEvented(target)) { + throw new Error(`Invalid target for ${objName(obj)}#${fnName}; must be a DOM node or evented object.`); + } + }; + + /** + * Validates a value to determine if it is a valid event target. Throws if not. + * + * @private + * @throws {Error} + * If the type does not appear to be a valid event type. + * + * @param {string|Array} type + * The type to test. + * + * @param {Object} obj + * The evented object we are validating for + * + * @param {string} fnName + * The name of the evented mixin function that called this. + */ + const validateEventType = (type, obj, fnName) => { + if (!isValidEventType(type)) { + throw new Error(`Invalid event type for ${objName(obj)}#${fnName}; must be a non-empty string or array.`); + } + }; + + /** + * Validates a value to determine if it is a valid listener. Throws if not. + * + * @private + * @throws {Error} + * If the listener is not a function. + * + * @param {Function} listener + * The listener to test. + * + * @param {Object} obj + * The evented object we are validating for + * + * @param {string} fnName + * The name of the evented mixin function that called this. + */ + const validateListener = (listener, obj, fnName) => { + if (typeof listener !== 'function') { + throw new Error(`Invalid listener for ${objName(obj)}#${fnName}; must be a function.`); + } + }; + + /** + * Takes an array of arguments given to `on()` or `one()`, validates them, and + * normalizes them into an object. + * + * @private + * @param {Object} self + * The evented object on which `on()` or `one()` was called. This + * object will be bound as the `this` value for the listener. + * + * @param {Array} args + * An array of arguments passed to `on()` or `one()`. + * + * @param {string} fnName + * The name of the evented mixin function that called this. + * + * @return {Object} + * An object containing useful values for `on()` or `one()` calls. + */ + const normalizeListenArgs = (self, args, fnName) => { + // If the number of arguments is less than 3, the target is always the + // evented object itself. + const isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_; + let target; + let type; + let listener; + if (isTargetingSelf) { + target = self.eventBusEl_; + + // Deal with cases where we got 3 arguments, but we are still listening to + // the evented object itself. + if (args.length >= 3) { + args.shift(); + } + [type, listener] = args; + } else { + [target, type, listener] = args; + } + validateTarget(target, self, fnName); + validateEventType(type, self, fnName); + validateListener(listener, self, fnName); + listener = bind_(self, listener); + return { + isTargetingSelf, + target, + type, + listener + }; + }; + + /** + * Adds the listener to the event type(s) on the target, normalizing for + * the type of target. + * + * @private + * @param {Element|Object} target + * A DOM node or evented object. + * + * @param {string} method + * The event binding method to use ("on" or "one"). + * + * @param {string|Array} type + * One or more event type(s). + * + * @param {Function} listener + * A listener function. + */ + const listen = (target, method, type, listener) => { + validateTarget(target, target, method); + if (target.nodeName) { + Events[method](target, type, listener); + } else { + target[method](type, listener); + } + }; + + /** + * Contains methods that provide event capabilities to an object which is passed + * to {@link module:evented|evented}. + * + * @mixin EventedMixin + */ + const EventedMixin = { + /** + * Add a listener to an event (or events) on this object or another evented + * object. + * + * @param {string|Array|Element|Object} targetOrType + * If this is a string or array, it represents the event type(s) + * that will trigger the listener. + * + * Another evented object can be passed here instead, which will + * cause the listener to listen for events on _that_ object. + * + * In either case, the listener's `this` value will be bound to + * this object. + * + * @param {string|Array|Function} typeOrListener + * If the first argument was a string or array, this should be the + * listener function. Otherwise, this is a string or array of event + * type(s). + * + * @param {Function} [listener] + * If the first argument was another evented object, this will be + * the listener function. + */ + on(...args) { + const { + isTargetingSelf, + target, + type, + listener + } = normalizeListenArgs(this, args, 'on'); + listen(target, 'on', type, listener); + + // If this object is listening to another evented object. + if (!isTargetingSelf) { + // If this object is disposed, remove the listener. + const removeListenerOnDispose = () => this.off(target, type, listener); + + // Use the same function ID as the listener so we can remove it later it + // using the ID of the original listener. + removeListenerOnDispose.guid = listener.guid; + + // Add a listener to the target's dispose event as well. This ensures + // that if the target is disposed BEFORE this object, we remove the + // removal listener that was just added. Otherwise, we create a memory leak. + const removeRemoverOnTargetDispose = () => this.off('dispose', removeListenerOnDispose); + + // Use the same function ID as the listener so we can remove it later + // it using the ID of the original listener. + removeRemoverOnTargetDispose.guid = listener.guid; + listen(this, 'on', 'dispose', removeListenerOnDispose); + listen(target, 'on', 'dispose', removeRemoverOnTargetDispose); + } + }, + /** + * Add a listener to an event (or events) on this object or another evented + * object. The listener will be called once per event and then removed. + * + * @param {string|Array|Element|Object} targetOrType + * If this is a string or array, it represents the event type(s) + * that will trigger the listener. + * + * Another evented object can be passed here instead, which will + * cause the listener to listen for events on _that_ object. + * + * In either case, the listener's `this` value will be bound to + * this object. + * + * @param {string|Array|Function} typeOrListener + * If the first argument was a string or array, this should be the + * listener function. Otherwise, this is a string or array of event + * type(s). + * + * @param {Function} [listener] + * If the first argument was another evented object, this will be + * the listener function. + */ + one(...args) { + const { + isTargetingSelf, + target, + type, + listener + } = normalizeListenArgs(this, args, 'one'); + + // Targeting this evented object. + if (isTargetingSelf) { + listen(target, 'one', type, listener); + + // Targeting another evented object. + } else { + // TODO: This wrapper is incorrect! It should only + // remove the wrapper for the event type that called it. + // Instead all listeners are removed on the first trigger! + // see https://github.com/videojs/video.js/issues/5962 + const wrapper = (...largs) => { + this.off(target, type, wrapper); + listener.apply(null, largs); + }; + + // Use the same function ID as the listener so we can remove it later + // it using the ID of the original listener. + wrapper.guid = listener.guid; + listen(target, 'one', type, wrapper); + } + }, + /** + * Add a listener to an event (or events) on this object or another evented + * object. The listener will only be called once for the first event that is triggered + * then removed. + * + * @param {string|Array|Element|Object} targetOrType + * If this is a string or array, it represents the event type(s) + * that will trigger the listener. + * + * Another evented object can be passed here instead, which will + * cause the listener to listen for events on _that_ object. + * + * In either case, the listener's `this` value will be bound to + * this object. + * + * @param {string|Array|Function} typeOrListener + * If the first argument was a string or array, this should be the + * listener function. Otherwise, this is a string or array of event + * type(s). + * + * @param {Function} [listener] + * If the first argument was another evented object, this will be + * the listener function. + */ + any(...args) { + const { + isTargetingSelf, + target, + type, + listener + } = normalizeListenArgs(this, args, 'any'); + + // Targeting this evented object. + if (isTargetingSelf) { + listen(target, 'any', type, listener); + + // Targeting another evented object. + } else { + const wrapper = (...largs) => { + this.off(target, type, wrapper); + listener.apply(null, largs); + }; + + // Use the same function ID as the listener so we can remove it later + // it using the ID of the original listener. + wrapper.guid = listener.guid; + listen(target, 'any', type, wrapper); + } + }, + /** + * Removes listener(s) from event(s) on an evented object. + * + * @param {string|Array|Element|Object} [targetOrType] + * If this is a string or array, it represents the event type(s). + * + * Another evented object can be passed here instead, in which case + * ALL 3 arguments are _required_. + * + * @param {string|Array|Function} [typeOrListener] + * If the first argument was a string or array, this may be the + * listener function. Otherwise, this is a string or array of event + * type(s). + * + * @param {Function} [listener] + * If the first argument was another evented object, this will be + * the listener function; otherwise, _all_ listeners bound to the + * event type(s) will be removed. + */ + off(targetOrType, typeOrListener, listener) { + // Targeting this evented object. + if (!targetOrType || isValidEventType(targetOrType)) { + off(this.eventBusEl_, targetOrType, typeOrListener); + + // Targeting another evented object. + } else { + const target = targetOrType; + const type = typeOrListener; + + // Fail fast and in a meaningful way! + validateTarget(target, this, 'off'); + validateEventType(type, this, 'off'); + validateListener(listener, this, 'off'); + + // Ensure there's at least a guid, even if the function hasn't been used + listener = bind_(this, listener); + + // Remove the dispose listener on this evented object, which was given + // the same guid as the event listener in on(). + this.off('dispose', listener); + if (target.nodeName) { + off(target, type, listener); + off(target, 'dispose', listener); + } else if (isEvented(target)) { + target.off(type, listener); + target.off('dispose', listener); + } + } + }, + /** + * Fire an event on this evented object, causing its listeners to be called. + * + * @param {string|Object} event + * An event type or an object with a type property. + * + * @param {Object} [hash] + * An additional object to pass along to listeners. + * + * @return {boolean} + * Whether or not the default behavior was prevented. + */ + trigger(event, hash) { + validateTarget(this.eventBusEl_, this, 'trigger'); + const type = event && typeof event !== 'string' ? event.type : event; + if (!isValidEventType(type)) { + throw new Error(`Invalid event type for ${objName(this)}#trigger; ` + 'must be a non-empty string or object with a type key that has a non-empty value.'); + } + return trigger(this.eventBusEl_, event, hash); + } + }; + + /** + * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object. + * + * @param {Object} target + * The object to which to add event methods. + * + * @param {Object} [options={}] + * Options for customizing the mixin behavior. + * + * @param {string} [options.eventBusKey] + * By default, adds a `eventBusEl_` DOM element to the target object, + * which is used as an event bus. If the target object already has a + * DOM element that should be used, pass its key here. + * + * @return {Object} + * The target object. + */ + function evented(target, options = {}) { + const { + eventBusKey + } = options; + + // Set or create the eventBusEl_. + if (eventBusKey) { + if (!target[eventBusKey].nodeName) { + throw new Error(`The eventBusKey "${eventBusKey}" does not refer to an element.`); + } + target.eventBusEl_ = target[eventBusKey]; + } else { + target.eventBusEl_ = createEl('span', { + className: 'vjs-event-bus' + }); + } + Object.assign(target, EventedMixin); + if (target.eventedCallbacks) { + target.eventedCallbacks.forEach(callback => { + callback(); + }); + } + + // When any evented object is disposed, it removes all its listeners. + target.on('dispose', () => { + target.off(); + [target, target.el_, target.eventBusEl_].forEach(function (val) { + if (val && DomData.has(val)) { + DomData.delete(val); + } + }); + window.setTimeout(() => { + target.eventBusEl_ = null; + }, 0); + }); + return target; + } + + /** + * @file mixins/stateful.js + * @module stateful + */ + + /** + * Contains methods that provide statefulness to an object which is passed + * to {@link module:stateful}. + * + * @mixin StatefulMixin + */ + const StatefulMixin = { + /** + * A hash containing arbitrary keys and values representing the state of + * the object. + * + * @type {Object} + */ + state: {}, + /** + * Set the state of an object by mutating its + * {@link module:stateful~StatefulMixin.state|state} object in place. + * + * @fires module:stateful~StatefulMixin#statechanged + * @param {Object|Function} stateUpdates + * A new set of properties to shallow-merge into the plugin state. + * Can be a plain object or a function returning a plain object. + * + * @return {Object|undefined} + * An object containing changes that occurred. If no changes + * occurred, returns `undefined`. + */ + setState(stateUpdates) { + // Support providing the `stateUpdates` state as a function. + if (typeof stateUpdates === 'function') { + stateUpdates = stateUpdates(); + } + let changes; + each(stateUpdates, (value, key) => { + // Record the change if the value is different from what's in the + // current state. + if (this.state[key] !== value) { + changes = changes || {}; + changes[key] = { + from: this.state[key], + to: value + }; + } + this.state[key] = value; + }); + + // Only trigger "statechange" if there were changes AND we have a trigger + // function. This allows us to not require that the target object be an + // evented object. + if (changes && isEvented(this)) { + /** + * An event triggered on an object that is both + * {@link module:stateful|stateful} and {@link module:evented|evented} + * indicating that its state has changed. + * + * @event module:stateful~StatefulMixin#statechanged + * @type {Object} + * @property {Object} changes + * A hash containing the properties that were changed and + * the values they were changed `from` and `to`. + */ + this.trigger({ + changes, + type: 'statechanged' + }); + } + return changes; + } + }; + + /** + * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target + * object. + * + * If the target object is {@link module:evented|evented} and has a + * `handleStateChanged` method, that method will be automatically bound to the + * `statechanged` event on itself. + * + * @param {Object} target + * The object to be made stateful. + * + * @param {Object} [defaultState] + * A default set of properties to populate the newly-stateful object's + * `state` property. + * + * @return {Object} + * Returns the `target`. + */ + function stateful(target, defaultState) { + Object.assign(target, StatefulMixin); + + // This happens after the mixing-in because we need to replace the `state` + // added in that step. + target.state = Object.assign({}, target.state, defaultState); + + // Auto-bind the `handleStateChanged` method of the target object if it exists. + if (typeof target.handleStateChanged === 'function' && isEvented(target)) { + target.on('statechanged', target.handleStateChanged); + } + return target; + } + + /** + * @file str.js + * @module to-lower-case + */ + + /** + * Lowercase the first letter of a string. + * + * @param {string} string + * String to be lowercased + * + * @return {string} + * The string with a lowercased first letter + */ + const toLowerCase = function (string) { + if (typeof string !== 'string') { + return string; + } + return string.replace(/./, w => w.toLowerCase()); + }; + + /** + * Uppercase the first letter of a string. + * + * @param {string} string + * String to be uppercased + * + * @return {string} + * The string with an uppercased first letter + */ + const toTitleCase = function (string) { + if (typeof string !== 'string') { + return string; + } + return string.replace(/./, w => w.toUpperCase()); + }; + + /** + * Compares the TitleCase versions of the two strings for equality. + * + * @param {string} str1 + * The first string to compare + * + * @param {string} str2 + * The second string to compare + * + * @return {boolean} + * Whether the TitleCase versions of the strings are equal + */ + const titleCaseEquals = function (str1, str2) { + return toTitleCase(str1) === toTitleCase(str2); + }; + + var Str = /*#__PURE__*/Object.freeze({ + __proto__: null, + toLowerCase: toLowerCase, + toTitleCase: toTitleCase, + titleCaseEquals: titleCaseEquals + }); + + var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {}; + + function unwrapExports (x) { + return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x; + } + + function createCommonjsModule(fn, module) { + return module = { exports: {} }, fn(module, module.exports), module.exports; + } + + var keycode = createCommonjsModule(function (module, exports) { + // Source: http://jsfiddle.net/vWx8V/ + // http://stackoverflow.com/questions/5603195/full-list-of-javascript-keycodes + + /** + * Conenience method returns corresponding value for given keyName or keyCode. + * + * @param {Mixed} keyCode {Number} or keyName {String} + * @return {Mixed} + * @api public + */ + + function keyCode(searchInput) { + // Keyboard Events + if (searchInput && 'object' === typeof searchInput) { + var hasKeyCode = searchInput.which || searchInput.keyCode || searchInput.charCode; + if (hasKeyCode) searchInput = hasKeyCode; + } + + // Numbers + if ('number' === typeof searchInput) return names[searchInput]; + + // Everything else (cast to string) + var search = String(searchInput); + + // check codes + var foundNamedKey = codes[search.toLowerCase()]; + if (foundNamedKey) return foundNamedKey; + + // check aliases + var foundNamedKey = aliases[search.toLowerCase()]; + if (foundNamedKey) return foundNamedKey; + + // weird character? + if (search.length === 1) return search.charCodeAt(0); + return undefined; + } + + /** + * Compares a keyboard event with a given keyCode or keyName. + * + * @param {Event} event Keyboard event that should be tested + * @param {Mixed} keyCode {Number} or keyName {String} + * @return {Boolean} + * @api public + */ + keyCode.isEventKey = function isEventKey(event, nameOrCode) { + if (event && 'object' === typeof event) { + var keyCode = event.which || event.keyCode || event.charCode; + if (keyCode === null || keyCode === undefined) { + return false; + } + if (typeof nameOrCode === 'string') { + // check codes + var foundNamedKey = codes[nameOrCode.toLowerCase()]; + if (foundNamedKey) { + return foundNamedKey === keyCode; + } + + // check aliases + var foundNamedKey = aliases[nameOrCode.toLowerCase()]; + if (foundNamedKey) { + return foundNamedKey === keyCode; + } + } else if (typeof nameOrCode === 'number') { + return nameOrCode === keyCode; + } + return false; + } + }; + exports = module.exports = keyCode; + + /** + * Get by name + * + * exports.code['enter'] // => 13 + */ + + var codes = exports.code = exports.codes = { + 'backspace': 8, + 'tab': 9, + 'enter': 13, + 'shift': 16, + 'ctrl': 17, + 'alt': 18, + 'pause/break': 19, + 'caps lock': 20, + 'esc': 27, + 'space': 32, + 'page up': 33, + 'page down': 34, + 'end': 35, + 'home': 36, + 'left': 37, + 'up': 38, + 'right': 39, + 'down': 40, + 'insert': 45, + 'delete': 46, + 'command': 91, + 'left command': 91, + 'right command': 93, + 'numpad *': 106, + 'numpad +': 107, + 'numpad -': 109, + 'numpad .': 110, + 'numpad /': 111, + 'num lock': 144, + 'scroll lock': 145, + 'my computer': 182, + 'my calculator': 183, + ';': 186, + '=': 187, + ',': 188, + '-': 189, + '.': 190, + '/': 191, + '`': 192, + '[': 219, + '\\': 220, + ']': 221, + "'": 222 + }; + + // Helper aliases + + var aliases = exports.aliases = { + 'windows': 91, + '⇧': 16, + '⌥': 18, + '⌃': 17, + '⌘': 91, + 'ctl': 17, + 'control': 17, + 'option': 18, + 'pause': 19, + 'break': 19, + 'caps': 20, + 'return': 13, + 'escape': 27, + 'spc': 32, + 'spacebar': 32, + 'pgup': 33, + 'pgdn': 34, + 'ins': 45, + 'del': 46, + 'cmd': 91 + }; + + /*! + * Programatically add the following + */ + + // lower case chars + for (i = 97; i < 123; i++) codes[String.fromCharCode(i)] = i - 32; + + // numbers + for (var i = 48; i < 58; i++) codes[i - 48] = i; + + // function keys + for (i = 1; i < 13; i++) codes['f' + i] = i + 111; + + // numpad keys + for (i = 0; i < 10; i++) codes['numpad ' + i] = i + 96; + + /** + * Get by code + * + * exports.name[13] // => 'Enter' + */ + + var names = exports.names = exports.title = {}; // title for backward compat + + // Create reverse mapping + for (i in codes) names[codes[i]] = i; + + // Add aliases + for (var alias in aliases) { + codes[alias] = aliases[alias]; + } + }); + keycode.code; + keycode.codes; + keycode.aliases; + keycode.names; + keycode.title; + + /** + * Player Component - Base class for all UI objects + * + * @file component.js + */ + + /** + * Base class for all UI Components. + * Components are UI objects which represent both a javascript object and an element + * in the DOM. They can be children of other components, and can have + * children themselves. + * + * Components can also use methods from {@link EventTarget} + */ + class Component { + /** + * A callback that is called when a component is ready. Does not have any + * parameters and any callback value will be ignored. + * + * @callback ReadyCallback + * @this Component + */ + + /** + * Creates an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of component options. + * + * @param {Object[]} [options.children] + * An array of children objects to initialize this component with. Children objects have + * a name property that will be used if more than one component of the same type needs to be + * added. + * + * @param {string} [options.className] + * A class or space separated list of classes to add the component + * + * @param {ReadyCallback} [ready] + * Function that gets called when the `Component` is ready. + */ + constructor(player, options, ready) { + // The component might be the player itself and we can't pass `this` to super + if (!player && this.play) { + this.player_ = player = this; // eslint-disable-line + } else { + this.player_ = player; + } + this.isDisposed_ = false; + + // Hold the reference to the parent component via `addChild` method + this.parentComponent_ = null; + + // Make a copy of prototype.options_ to protect against overriding defaults + this.options_ = merge({}, this.options_); + + // Updated options with supplied options + options = this.options_ = merge(this.options_, options); + + // Get ID from options or options element if one is supplied + this.id_ = options.id || options.el && options.el.id; + + // If there was no ID from the options, generate one + if (!this.id_) { + // Don't require the player ID function in the case of mock players + const id = player && player.id && player.id() || 'no_player'; + this.id_ = `${id}_component_${newGUID()}`; + } + this.name_ = options.name || null; + + // Create element if one wasn't provided in options + if (options.el) { + this.el_ = options.el; + } else if (options.createEl !== false) { + this.el_ = this.createEl(); + } + if (options.className && this.el_) { + options.className.split(' ').forEach(c => this.addClass(c)); + } + + // Remove the placeholder event methods. If the component is evented, the + // real methods are added next + ['on', 'off', 'one', 'any', 'trigger'].forEach(fn => { + this[fn] = undefined; + }); + + // if evented is anything except false, we want to mixin in evented + if (options.evented !== false) { + // Make this an evented object and use `el_`, if available, as its event bus + evented(this, { + eventBusKey: this.el_ ? 'el_' : null + }); + this.handleLanguagechange = this.handleLanguagechange.bind(this); + this.on(this.player_, 'languagechange', this.handleLanguagechange); + } + stateful(this, this.constructor.defaultState); + this.children_ = []; + this.childIndex_ = {}; + this.childNameIndex_ = {}; + this.setTimeoutIds_ = new Set(); + this.setIntervalIds_ = new Set(); + this.rafIds_ = new Set(); + this.namedRafs_ = new Map(); + this.clearingTimersOnDispose_ = false; + + // Add any child components in options + if (options.initChildren !== false) { + this.initChildren(); + } + + // Don't want to trigger ready here or it will go before init is actually + // finished for all children that run this constructor + this.ready(ready); + if (options.reportTouchActivity !== false) { + this.enableTouchActivity(); + } + } + + // `on`, `off`, `one`, `any` and `trigger` are here so tsc includes them in definitions. + // They are replaced or removed in the constructor + + /** + * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a + * function that will get called when an event with a certain name gets triggered. + * + * @param {string|string[]} type + * An event name or an array of event names. + * + * @param {Function} fn + * The function to call with `EventTarget`s + */ + on(type, fn) {} + + /** + * Removes an `event listener` for a specific event from an instance of `EventTarget`. + * This makes it so that the `event listener` will no longer get called when the + * named event happens. + * + * @param {string|string[]} type + * An event name or an array of event names. + * + * @param {Function} [fn] + * The function to remove. If not specified, all listeners managed by Video.js will be removed. + */ + off(type, fn) {} + + /** + * This function will add an `event listener` that gets triggered only once. After the + * first trigger it will get removed. This is like adding an `event listener` + * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself. + * + * @param {string|string[]} type + * An event name or an array of event names. + * + * @param {Function} fn + * The function to be called once for each event name. + */ + one(type, fn) {} + + /** + * This function will add an `event listener` that gets triggered only once and is + * removed from all events. This is like adding an array of `event listener`s + * with {@link EventTarget#on} that calls {@link EventTarget#off} on all events the + * first time it is triggered. + * + * @param {string|string[]} type + * An event name or an array of event names. + * + * @param {Function} fn + * The function to be called once for each event name. + */ + any(type, fn) {} + + /** + * This function causes an event to happen. This will then cause any `event listeners` + * that are waiting for that event, to get called. If there are no `event listeners` + * for an event then nothing will happen. + * + * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`. + * Trigger will also call the `on` + `uppercaseEventName` function. + * + * Example: + * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call + * `onClick` if it exists. + * + * @param {string|Event|Object} event + * The name of the event, an `Event`, or an object with a key of type set to + * an event name. + * + * @param {Object} [hash] + * Optionally extra argument to pass through to an event listener + */ + trigger(event, hash) {} + + /** + * Dispose of the `Component` and all child components. + * + * @fires Component#dispose + * + * @param {Object} options + * @param {Element} options.originalEl element with which to replace player element + */ + dispose(options = {}) { + // Bail out if the component has already been disposed. + if (this.isDisposed_) { + return; + } + if (this.readyQueue_) { + this.readyQueue_.length = 0; + } + + /** + * Triggered when a `Component` is disposed. + * + * @event Component#dispose + * @type {Event} + * + * @property {boolean} [bubbles=false] + * set to false so that the dispose event does not + * bubble up + */ + this.trigger({ + type: 'dispose', + bubbles: false + }); + this.isDisposed_ = true; + + // Dispose all children. + if (this.children_) { + for (let i = this.children_.length - 1; i >= 0; i--) { + if (this.children_[i].dispose) { + this.children_[i].dispose(); + } + } + } + + // Delete child references + this.children_ = null; + this.childIndex_ = null; + this.childNameIndex_ = null; + this.parentComponent_ = null; + if (this.el_) { + // Remove element from DOM + if (this.el_.parentNode) { + if (options.restoreEl) { + this.el_.parentNode.replaceChild(options.restoreEl, this.el_); + } else { + this.el_.parentNode.removeChild(this.el_); + } + } + this.el_ = null; + } + + // remove reference to the player after disposing of the element + this.player_ = null; + } + + /** + * Determine whether or not this component has been disposed. + * + * @return {boolean} + * If the component has been disposed, will be `true`. Otherwise, `false`. + */ + isDisposed() { + return Boolean(this.isDisposed_); + } + + /** + * Return the {@link Player} that the `Component` has attached to. + * + * @return { import('./player').default } + * The player that this `Component` has attached to. + */ + player() { + return this.player_; + } + + /** + * Deep merge of options objects with new options. + * > Note: When both `obj` and `options` contain properties whose values are objects. + * The two properties get merged using {@link module:obj.merge} + * + * @param {Object} obj + * The object that contains new options. + * + * @return {Object} + * A new object of `this.options_` and `obj` merged together. + */ + options(obj) { + if (!obj) { + return this.options_; + } + this.options_ = merge(this.options_, obj); + return this.options_; + } + + /** + * Get the `Component`s DOM element + * + * @return {Element} + * The DOM element for this `Component`. + */ + el() { + return this.el_; + } + + /** + * Create the `Component`s DOM element. + * + * @param {string} [tagName] + * Element's DOM node type. e.g. 'div' + * + * @param {Object} [properties] + * An object of properties that should be set. + * + * @param {Object} [attributes] + * An object of attributes that should be set. + * + * @return {Element} + * The element that gets created. + */ + createEl(tagName, properties, attributes) { + return createEl(tagName, properties, attributes); + } + + /** + * Localize a string given the string in english. + * + * If tokens are provided, it'll try and run a simple token replacement on the provided string. + * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array. + * + * If a `defaultValue` is provided, it'll use that over `string`, + * if a value isn't found in provided language files. + * This is useful if you want to have a descriptive key for token replacement + * but have a succinct localized string and not require `en.json` to be included. + * + * Currently, it is used for the progress bar timing. + * ```js + * { + * "progress bar timing: currentTime={1} duration={2}": "{1} of {2}" + * } + * ``` + * It is then used like so: + * ```js + * this.localize('progress bar timing: currentTime={1} duration{2}', + * [this.player_.currentTime(), this.player_.duration()], + * '{1} of {2}'); + * ``` + * + * Which outputs something like: `01:23 of 24:56`. + * + * + * @param {string} string + * The string to localize and the key to lookup in the language files. + * @param {string[]} [tokens] + * If the current item has token replacements, provide the tokens here. + * @param {string} [defaultValue] + * Defaults to `string`. Can be a default value to use for token replacement + * if the lookup key is needed to be separate. + * + * @return {string} + * The localized string or if no localization exists the english string. + */ + localize(string, tokens, defaultValue = string) { + const code = this.player_.language && this.player_.language(); + const languages = this.player_.languages && this.player_.languages(); + const language = languages && languages[code]; + const primaryCode = code && code.split('-')[0]; + const primaryLang = languages && languages[primaryCode]; + let localizedString = defaultValue; + if (language && language[string]) { + localizedString = language[string]; + } else if (primaryLang && primaryLang[string]) { + localizedString = primaryLang[string]; + } + if (tokens) { + localizedString = localizedString.replace(/\{(\d+)\}/g, function (match, index) { + const value = tokens[index - 1]; + let ret = value; + if (typeof value === 'undefined') { + ret = match; + } + return ret; + }); + } + return localizedString; + } + + /** + * Handles language change for the player in components. Should be overridden by sub-components. + * + * @abstract + */ + handleLanguagechange() {} + + /** + * Return the `Component`s DOM element. This is where children get inserted. + * This will usually be the the same as the element returned in {@link Component#el}. + * + * @return {Element} + * The content element for this `Component`. + */ + contentEl() { + return this.contentEl_ || this.el_; + } + + /** + * Get this `Component`s ID + * + * @return {string} + * The id of this `Component` + */ + id() { + return this.id_; + } + + /** + * Get the `Component`s name. The name gets used to reference the `Component` + * and is set during registration. + * + * @return {string} + * The name of this `Component`. + */ + name() { + return this.name_; + } + + /** + * Get an array of all child components + * + * @return {Array} + * The children + */ + children() { + return this.children_; + } + + /** + * Returns the child `Component` with the given `id`. + * + * @param {string} id + * The id of the child `Component` to get. + * + * @return {Component|undefined} + * The child `Component` with the given `id` or undefined. + */ + getChildById(id) { + return this.childIndex_[id]; + } + + /** + * Returns the child `Component` with the given `name`. + * + * @param {string} name + * The name of the child `Component` to get. + * + * @return {Component|undefined} + * The child `Component` with the given `name` or undefined. + */ + getChild(name) { + if (!name) { + return; + } + return this.childNameIndex_[name]; + } + + /** + * Returns the descendant `Component` following the givent + * descendant `names`. For instance ['foo', 'bar', 'baz'] would + * try to get 'foo' on the current component, 'bar' on the 'foo' + * component and 'baz' on the 'bar' component and return undefined + * if any of those don't exist. + * + * @param {...string[]|...string} names + * The name of the child `Component` to get. + * + * @return {Component|undefined} + * The descendant `Component` following the given descendant + * `names` or undefined. + */ + getDescendant(...names) { + // flatten array argument into the main array + names = names.reduce((acc, n) => acc.concat(n), []); + let currentChild = this; + for (let i = 0; i < names.length; i++) { + currentChild = currentChild.getChild(names[i]); + if (!currentChild || !currentChild.getChild) { + return; + } + } + return currentChild; + } + + /** + * Adds an SVG icon element to another element or component. + * + * @param {string} iconName + * The name of icon. A list of all the icon names can be found at 'sandbox/svg-icons.html' + * + * @param {Element} [el=this.el()] + * Element to set the title on. Defaults to the current Component's element. + * + * @return {Element} + * The newly created icon element. + */ + setIcon(iconName, el = this.el()) { + // TODO: In v9 of video.js, we will want to remove font icons entirely. + // This means this check, as well as the others throughout the code, and + // the unecessary CSS for font icons, will need to be removed. + // See https://github.com/videojs/video.js/pull/8260 as to which components + // need updating. + if (!this.player_.options_.experimentalSvgIcons) { + return; + } + const xmlnsURL = 'http://www.w3.org/2000/svg'; + + // The below creates an element in the format of: + // <span><svg><use>....</use></svg></span> + const iconContainer = createEl('span', { + className: 'vjs-icon-placeholder vjs-svg-icon' + }, { + 'aria-hidden': 'true' + }); + const svgEl = document.createElementNS(xmlnsURL, 'svg'); + svgEl.setAttributeNS(null, 'viewBox', '0 0 512 512'); + const useEl = document.createElementNS(xmlnsURL, 'use'); + svgEl.appendChild(useEl); + useEl.setAttributeNS(null, 'href', `#vjs-icon-${iconName}`); + iconContainer.appendChild(svgEl); + + // Replace a pre-existing icon if one exists. + if (this.iconIsSet_) { + el.replaceChild(iconContainer, el.querySelector('.vjs-icon-placeholder')); + } else { + el.appendChild(iconContainer); + } + this.iconIsSet_ = true; + return iconContainer; + } + + /** + * Add a child `Component` inside the current `Component`. + * + * @param {string|Component} child + * The name or instance of a child to add. + * + * @param {Object} [options={}] + * The key/value store of options that will get passed to children of + * the child. + * + * @param {number} [index=this.children_.length] + * The index to attempt to add a child into. + * + * + * @return {Component} + * The `Component` that gets added as a child. When using a string the + * `Component` will get created by this process. + */ + addChild(child, options = {}, index = this.children_.length) { + let component; + let componentName; + + // If child is a string, create component with options + if (typeof child === 'string') { + componentName = toTitleCase(child); + const componentClassName = options.componentClass || componentName; + + // Set name through options + options.name = componentName; + + // Create a new object & element for this controls set + // If there's no .player_, this is a player + const ComponentClass = Component.getComponent(componentClassName); + if (!ComponentClass) { + throw new Error(`Component ${componentClassName} does not exist`); + } + + // data stored directly on the videojs object may be + // misidentified as a component to retain + // backwards-compatibility with 4.x. check to make sure the + // component class can be instantiated. + if (typeof ComponentClass !== 'function') { + return null; + } + component = new ComponentClass(this.player_ || this, options); + + // child is a component instance + } else { + component = child; + } + if (component.parentComponent_) { + component.parentComponent_.removeChild(component); + } + this.children_.splice(index, 0, component); + component.parentComponent_ = this; + if (typeof component.id === 'function') { + this.childIndex_[component.id()] = component; + } + + // If a name wasn't used to create the component, check if we can use the + // name function of the component + componentName = componentName || component.name && toTitleCase(component.name()); + if (componentName) { + this.childNameIndex_[componentName] = component; + this.childNameIndex_[toLowerCase(componentName)] = component; + } + + // Add the UI object's element to the container div (box) + // Having an element is not required + if (typeof component.el === 'function' && component.el()) { + // If inserting before a component, insert before that component's element + let refNode = null; + if (this.children_[index + 1]) { + // Most children are components, but the video tech is an HTML element + if (this.children_[index + 1].el_) { + refNode = this.children_[index + 1].el_; + } else if (isEl(this.children_[index + 1])) { + refNode = this.children_[index + 1]; + } + } + this.contentEl().insertBefore(component.el(), refNode); + } + + // Return so it can stored on parent object if desired. + return component; + } + + /** + * Remove a child `Component` from this `Component`s list of children. Also removes + * the child `Component`s element from this `Component`s element. + * + * @param {Component} component + * The child `Component` to remove. + */ + removeChild(component) { + if (typeof component === 'string') { + component = this.getChild(component); + } + if (!component || !this.children_) { + return; + } + let childFound = false; + for (let i = this.children_.length - 1; i >= 0; i--) { + if (this.children_[i] === component) { + childFound = true; + this.children_.splice(i, 1); + break; + } + } + if (!childFound) { + return; + } + component.parentComponent_ = null; + this.childIndex_[component.id()] = null; + this.childNameIndex_[toTitleCase(component.name())] = null; + this.childNameIndex_[toLowerCase(component.name())] = null; + const compEl = component.el(); + if (compEl && compEl.parentNode === this.contentEl()) { + this.contentEl().removeChild(component.el()); + } + } + + /** + * Add and initialize default child `Component`s based upon options. + */ + initChildren() { + const children = this.options_.children; + if (children) { + // `this` is `parent` + const parentOptions = this.options_; + const handleAdd = child => { + const name = child.name; + let opts = child.opts; + + // Allow options for children to be set at the parent options + // e.g. videojs(id, { controlBar: false }); + // instead of videojs(id, { children: { controlBar: false }); + if (parentOptions[name] !== undefined) { + opts = parentOptions[name]; + } + + // Allow for disabling default components + // e.g. options['children']['posterImage'] = false + if (opts === false) { + return; + } + + // Allow options to be passed as a simple boolean if no configuration + // is necessary. + if (opts === true) { + opts = {}; + } + + // We also want to pass the original player options + // to each component as well so they don't need to + // reach back into the player for options later. + opts.playerOptions = this.options_.playerOptions; + + // Create and add the child component. + // Add a direct reference to the child by name on the parent instance. + // If two of the same component are used, different names should be supplied + // for each + const newChild = this.addChild(name, opts); + if (newChild) { + this[name] = newChild; + } + }; + + // Allow for an array of children details to passed in the options + let workingChildren; + const Tech = Component.getComponent('Tech'); + if (Array.isArray(children)) { + workingChildren = children; + } else { + workingChildren = Object.keys(children); + } + workingChildren + // children that are in this.options_ but also in workingChildren would + // give us extra children we do not want. So, we want to filter them out. + .concat(Object.keys(this.options_).filter(function (child) { + return !workingChildren.some(function (wchild) { + if (typeof wchild === 'string') { + return child === wchild; + } + return child === wchild.name; + }); + })).map(child => { + let name; + let opts; + if (typeof child === 'string') { + name = child; + opts = children[name] || this.options_[name] || {}; + } else { + name = child.name; + opts = child; + } + return { + name, + opts + }; + }).filter(child => { + // we have to make sure that child.name isn't in the techOrder since + // techs are registered as Components but can't aren't compatible + // See https://github.com/videojs/video.js/issues/2772 + const c = Component.getComponent(child.opts.componentClass || toTitleCase(child.name)); + return c && !Tech.isTech(c); + }).forEach(handleAdd); + } + } + + /** + * Builds the default DOM class name. Should be overridden by sub-components. + * + * @return {string} + * The DOM class name for this object. + * + * @abstract + */ + buildCSSClass() { + // Child classes can include a function that does: + // return 'CLASS NAME' + this._super(); + return ''; + } + + /** + * Bind a listener to the component's ready state. + * Different from event listeners in that if the ready event has already happened + * it will trigger the function immediately. + * + * @param {ReadyCallback} fn + * Function that gets called when the `Component` is ready. + * + * @return {Component} + * Returns itself; method can be chained. + */ + ready(fn, sync = false) { + if (!fn) { + return; + } + if (!this.isReady_) { + this.readyQueue_ = this.readyQueue_ || []; + this.readyQueue_.push(fn); + return; + } + if (sync) { + fn.call(this); + } else { + // Call the function asynchronously by default for consistency + this.setTimeout(fn, 1); + } + } + + /** + * Trigger all the ready listeners for this `Component`. + * + * @fires Component#ready + */ + triggerReady() { + this.isReady_ = true; + + // Ensure ready is triggered asynchronously + this.setTimeout(function () { + const readyQueue = this.readyQueue_; + + // Reset Ready Queue + this.readyQueue_ = []; + if (readyQueue && readyQueue.length > 0) { + readyQueue.forEach(function (fn) { + fn.call(this); + }, this); + } + + // Allow for using event listeners also + /** + * Triggered when a `Component` is ready. + * + * @event Component#ready + * @type {Event} + */ + this.trigger('ready'); + }, 1); + } + + /** + * Find a single DOM element matching a `selector`. This can be within the `Component`s + * `contentEl()` or another custom context. + * + * @param {string} selector + * A valid CSS selector, which will be passed to `querySelector`. + * + * @param {Element|string} [context=this.contentEl()] + * A DOM element within which to query. Can also be a selector string in + * which case the first matching element will get used as context. If + * missing `this.contentEl()` gets used. If `this.contentEl()` returns + * nothing it falls back to `document`. + * + * @return {Element|null} + * the dom element that was found, or null + * + * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors) + */ + $(selector, context) { + return $(selector, context || this.contentEl()); + } + + /** + * Finds all DOM element matching a `selector`. This can be within the `Component`s + * `contentEl()` or another custom context. + * + * @param {string} selector + * A valid CSS selector, which will be passed to `querySelectorAll`. + * + * @param {Element|string} [context=this.contentEl()] + * A DOM element within which to query. Can also be a selector string in + * which case the first matching element will get used as context. If + * missing `this.contentEl()` gets used. If `this.contentEl()` returns + * nothing it falls back to `document`. + * + * @return {NodeList} + * a list of dom elements that were found + * + * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors) + */ + $$(selector, context) { + return $$(selector, context || this.contentEl()); + } + + /** + * Check if a component's element has a CSS class name. + * + * @param {string} classToCheck + * CSS class name to check. + * + * @return {boolean} + * - True if the `Component` has the class. + * - False if the `Component` does not have the class` + */ + hasClass(classToCheck) { + return hasClass(this.el_, classToCheck); + } + + /** + * Add a CSS class name to the `Component`s element. + * + * @param {...string} classesToAdd + * One or more CSS class name to add. + */ + addClass(...classesToAdd) { + addClass(this.el_, ...classesToAdd); + } + + /** + * Remove a CSS class name from the `Component`s element. + * + * @param {...string} classesToRemove + * One or more CSS class name to remove. + */ + removeClass(...classesToRemove) { + removeClass(this.el_, ...classesToRemove); + } + + /** + * Add or remove a CSS class name from the component's element. + * - `classToToggle` gets added when {@link Component#hasClass} would return false. + * - `classToToggle` gets removed when {@link Component#hasClass} would return true. + * + * @param {string} classToToggle + * The class to add or remove based on (@link Component#hasClass} + * + * @param {boolean|Dom~predicate} [predicate] + * An {@link Dom~predicate} function or a boolean + */ + toggleClass(classToToggle, predicate) { + toggleClass(this.el_, classToToggle, predicate); + } + + /** + * Show the `Component`s element if it is hidden by removing the + * 'vjs-hidden' class name from it. + */ + show() { + this.removeClass('vjs-hidden'); + } + + /** + * Hide the `Component`s element if it is currently showing by adding the + * 'vjs-hidden` class name to it. + */ + hide() { + this.addClass('vjs-hidden'); + } + + /** + * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing' + * class name to it. Used during fadeIn/fadeOut. + * + * @private + */ + lockShowing() { + this.addClass('vjs-lock-showing'); + } + + /** + * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing' + * class name from it. Used during fadeIn/fadeOut. + * + * @private + */ + unlockShowing() { + this.removeClass('vjs-lock-showing'); + } + + /** + * Get the value of an attribute on the `Component`s element. + * + * @param {string} attribute + * Name of the attribute to get the value from. + * + * @return {string|null} + * - The value of the attribute that was asked for. + * - Can be an empty string on some browsers if the attribute does not exist + * or has no value + * - Most browsers will return null if the attribute does not exist or has + * no value. + * + * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute} + */ + getAttribute(attribute) { + return getAttribute(this.el_, attribute); + } + + /** + * Set the value of an attribute on the `Component`'s element + * + * @param {string} attribute + * Name of the attribute to set. + * + * @param {string} value + * Value to set the attribute to. + * + * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute} + */ + setAttribute(attribute, value) { + setAttribute(this.el_, attribute, value); + } + + /** + * Remove an attribute from the `Component`s element. + * + * @param {string} attribute + * Name of the attribute to remove. + * + * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute} + */ + removeAttribute(attribute) { + removeAttribute(this.el_, attribute); + } + + /** + * Get or set the width of the component based upon the CSS styles. + * See {@link Component#dimension} for more detailed information. + * + * @param {number|string} [num] + * The width that you want to set postfixed with '%', 'px' or nothing. + * + * @param {boolean} [skipListeners] + * Skip the componentresize event trigger + * + * @return {number|undefined} + * The width when getting, zero if there is no width + */ + width(num, skipListeners) { + return this.dimension('width', num, skipListeners); + } + + /** + * Get or set the height of the component based upon the CSS styles. + * See {@link Component#dimension} for more detailed information. + * + * @param {number|string} [num] + * The height that you want to set postfixed with '%', 'px' or nothing. + * + * @param {boolean} [skipListeners] + * Skip the componentresize event trigger + * + * @return {number|undefined} + * The height when getting, zero if there is no height + */ + height(num, skipListeners) { + return this.dimension('height', num, skipListeners); + } + + /** + * Set both the width and height of the `Component` element at the same time. + * + * @param {number|string} width + * Width to set the `Component`s element to. + * + * @param {number|string} height + * Height to set the `Component`s element to. + */ + dimensions(width, height) { + // Skip componentresize listeners on width for optimization + this.width(width, true); + this.height(height); + } + + /** + * Get or set width or height of the `Component` element. This is the shared code + * for the {@link Component#width} and {@link Component#height}. + * + * Things to know: + * - If the width or height in an number this will return the number postfixed with 'px'. + * - If the width/height is a percent this will return the percent postfixed with '%' + * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function + * defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`. + * See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/} + * for more information + * - If you want the computed style of the component, use {@link Component#currentWidth} + * and {@link {Component#currentHeight} + * + * @fires Component#componentresize + * + * @param {string} widthOrHeight + 8 'width' or 'height' + * + * @param {number|string} [num] + 8 New dimension + * + * @param {boolean} [skipListeners] + * Skip componentresize event trigger + * + * @return {number|undefined} + * The dimension when getting or 0 if unset + */ + dimension(widthOrHeight, num, skipListeners) { + if (num !== undefined) { + // Set to zero if null or literally NaN (NaN !== NaN) + if (num === null || num !== num) { + num = 0; + } + + // Check if using css width/height (% or px) and adjust + if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) { + this.el_.style[widthOrHeight] = num; + } else if (num === 'auto') { + this.el_.style[widthOrHeight] = ''; + } else { + this.el_.style[widthOrHeight] = num + 'px'; + } + + // skipListeners allows us to avoid triggering the resize event when setting both width and height + if (!skipListeners) { + /** + * Triggered when a component is resized. + * + * @event Component#componentresize + * @type {Event} + */ + this.trigger('componentresize'); + } + return; + } + + // Not setting a value, so getting it + // Make sure element exists + if (!this.el_) { + return 0; + } + + // Get dimension value from style + const val = this.el_.style[widthOrHeight]; + const pxIndex = val.indexOf('px'); + if (pxIndex !== -1) { + // Return the pixel value with no 'px' + return parseInt(val.slice(0, pxIndex), 10); + } + + // No px so using % or no style was set, so falling back to offsetWidth/height + // If component has display:none, offset will return 0 + // TODO: handle display:none and no dimension style using px + return parseInt(this.el_['offset' + toTitleCase(widthOrHeight)], 10); + } + + /** + * Get the computed width or the height of the component's element. + * + * Uses `window.getComputedStyle`. + * + * @param {string} widthOrHeight + * A string containing 'width' or 'height'. Whichever one you want to get. + * + * @return {number} + * The dimension that gets asked for or 0 if nothing was set + * for that dimension. + */ + currentDimension(widthOrHeight) { + let computedWidthOrHeight = 0; + if (widthOrHeight !== 'width' && widthOrHeight !== 'height') { + throw new Error('currentDimension only accepts width or height value'); + } + computedWidthOrHeight = computedStyle(this.el_, widthOrHeight); + + // remove 'px' from variable and parse as integer + computedWidthOrHeight = parseFloat(computedWidthOrHeight); + + // if the computed value is still 0, it's possible that the browser is lying + // and we want to check the offset values. + // This code also runs wherever getComputedStyle doesn't exist. + if (computedWidthOrHeight === 0 || isNaN(computedWidthOrHeight)) { + const rule = `offset${toTitleCase(widthOrHeight)}`; + computedWidthOrHeight = this.el_[rule]; + } + return computedWidthOrHeight; + } + + /** + * An object that contains width and height values of the `Component`s + * computed style. Uses `window.getComputedStyle`. + * + * @typedef {Object} Component~DimensionObject + * + * @property {number} width + * The width of the `Component`s computed style. + * + * @property {number} height + * The height of the `Component`s computed style. + */ + + /** + * Get an object that contains computed width and height values of the + * component's element. + * + * Uses `window.getComputedStyle`. + * + * @return {Component~DimensionObject} + * The computed dimensions of the component's element. + */ + currentDimensions() { + return { + width: this.currentDimension('width'), + height: this.currentDimension('height') + }; + } + + /** + * Get the computed width of the component's element. + * + * Uses `window.getComputedStyle`. + * + * @return {number} + * The computed width of the component's element. + */ + currentWidth() { + return this.currentDimension('width'); + } + + /** + * Get the computed height of the component's element. + * + * Uses `window.getComputedStyle`. + * + * @return {number} + * The computed height of the component's element. + */ + currentHeight() { + return this.currentDimension('height'); + } + + /** + * Set the focus to this component + */ + focus() { + this.el_.focus(); + } + + /** + * Remove the focus from this component + */ + blur() { + this.el_.blur(); + } + + /** + * When this Component receives a `keydown` event which it does not process, + * it passes the event to the Player for handling. + * + * @param {KeyboardEvent} event + * The `keydown` event that caused this function to be called. + */ + handleKeyDown(event) { + if (this.player_) { + // We only stop propagation here because we want unhandled events to fall + // back to the browser. Exclude Tab for focus trapping. + if (!keycode.isEventKey(event, 'Tab')) { + event.stopPropagation(); + } + this.player_.handleKeyDown(event); + } + } + + /** + * Many components used to have a `handleKeyPress` method, which was poorly + * named because it listened to a `keydown` event. This method name now + * delegates to `handleKeyDown`. This means anyone calling `handleKeyPress` + * will not see their method calls stop working. + * + * @param {KeyboardEvent} event + * The event that caused this function to be called. + */ + handleKeyPress(event) { + this.handleKeyDown(event); + } + + /** + * Emit a 'tap' events when touch event support gets detected. This gets used to + * support toggling the controls through a tap on the video. They get enabled + * because every sub-component would have extra overhead otherwise. + * + * @protected + * @fires Component#tap + * @listens Component#touchstart + * @listens Component#touchmove + * @listens Component#touchleave + * @listens Component#touchcancel + * @listens Component#touchend + */ + emitTapEvents() { + // Track the start time so we can determine how long the touch lasted + let touchStart = 0; + let firstTouch = null; + + // Maximum movement allowed during a touch event to still be considered a tap + // Other popular libs use anywhere from 2 (hammer.js) to 15, + // so 10 seems like a nice, round number. + const tapMovementThreshold = 10; + + // The maximum length a touch can be while still being considered a tap + const touchTimeThreshold = 200; + let couldBeTap; + this.on('touchstart', function (event) { + // If more than one finger, don't consider treating this as a click + if (event.touches.length === 1) { + // Copy pageX/pageY from the object + firstTouch = { + pageX: event.touches[0].pageX, + pageY: event.touches[0].pageY + }; + // Record start time so we can detect a tap vs. "touch and hold" + touchStart = window.performance.now(); + // Reset couldBeTap tracking + couldBeTap = true; + } + }); + this.on('touchmove', function (event) { + // If more than one finger, don't consider treating this as a click + if (event.touches.length > 1) { + couldBeTap = false; + } else if (firstTouch) { + // Some devices will throw touchmoves for all but the slightest of taps. + // So, if we moved only a small distance, this could still be a tap + const xdiff = event.touches[0].pageX - firstTouch.pageX; + const ydiff = event.touches[0].pageY - firstTouch.pageY; + const touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff); + if (touchDistance > tapMovementThreshold) { + couldBeTap = false; + } + } + }); + const noTap = function () { + couldBeTap = false; + }; + + // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s + this.on('touchleave', noTap); + this.on('touchcancel', noTap); + + // When the touch ends, measure how long it took and trigger the appropriate + // event + this.on('touchend', function (event) { + firstTouch = null; + // Proceed only if the touchmove/leave/cancel event didn't happen + if (couldBeTap === true) { + // Measure how long the touch lasted + const touchTime = window.performance.now() - touchStart; + + // Make sure the touch was less than the threshold to be considered a tap + if (touchTime < touchTimeThreshold) { + // Don't let browser turn this into a click + event.preventDefault(); + /** + * Triggered when a `Component` is tapped. + * + * @event Component#tap + * @type {MouseEvent} + */ + this.trigger('tap'); + // It may be good to copy the touchend event object and change the + // type to tap, if the other event properties aren't exact after + // Events.fixEvent runs (e.g. event.target) + } + } + }); + } + + /** + * This function reports user activity whenever touch events happen. This can get + * turned off by any sub-components that wants touch events to act another way. + * + * Report user touch activity when touch events occur. User activity gets used to + * determine when controls should show/hide. It is simple when it comes to mouse + * events, because any mouse event should show the controls. So we capture mouse + * events that bubble up to the player and report activity when that happens. + * With touch events it isn't as easy as `touchstart` and `touchend` toggle player + * controls. So touch events can't help us at the player level either. + * + * User activity gets checked asynchronously. So what could happen is a tap event + * on the video turns the controls off. Then the `touchend` event bubbles up to + * the player. Which, if it reported user activity, would turn the controls right + * back on. We also don't want to completely block touch events from bubbling up. + * Furthermore a `touchmove` event and anything other than a tap, should not turn + * controls back on. + * + * @listens Component#touchstart + * @listens Component#touchmove + * @listens Component#touchend + * @listens Component#touchcancel + */ + enableTouchActivity() { + // Don't continue if the root player doesn't support reporting user activity + if (!this.player() || !this.player().reportUserActivity) { + return; + } + + // listener for reporting that the user is active + const report = bind_(this.player(), this.player().reportUserActivity); + let touchHolding; + this.on('touchstart', function () { + report(); + // For as long as the they are touching the device or have their mouse down, + // we consider them active even if they're not moving their finger or mouse. + // So we want to continue to update that they are active + this.clearInterval(touchHolding); + // report at the same interval as activityCheck + touchHolding = this.setInterval(report, 250); + }); + const touchEnd = function (event) { + report(); + // stop the interval that maintains activity if the touch is holding + this.clearInterval(touchHolding); + }; + this.on('touchmove', report); + this.on('touchend', touchEnd); + this.on('touchcancel', touchEnd); + } + + /** + * A callback that has no parameters and is bound into `Component`s context. + * + * @callback Component~GenericCallback + * @this Component + */ + + /** + * Creates a function that runs after an `x` millisecond timeout. This function is a + * wrapper around `window.setTimeout`. There are a few reasons to use this one + * instead though: + * 1. It gets cleared via {@link Component#clearTimeout} when + * {@link Component#dispose} gets called. + * 2. The function callback will gets turned into a {@link Component~GenericCallback} + * + * > Note: You can't use `window.clearTimeout` on the id returned by this function. This + * will cause its dispose listener not to get cleaned up! Please use + * {@link Component#clearTimeout} or {@link Component#dispose} instead. + * + * @param {Component~GenericCallback} fn + * The function that will be run after `timeout`. + * + * @param {number} timeout + * Timeout in milliseconds to delay before executing the specified function. + * + * @return {number} + * Returns a timeout ID that gets used to identify the timeout. It can also + * get used in {@link Component#clearTimeout} to clear the timeout that + * was set. + * + * @listens Component#dispose + * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout} + */ + setTimeout(fn, timeout) { + // declare as variables so they are properly available in timeout function + // eslint-disable-next-line + var timeoutId; + fn = bind_(this, fn); + this.clearTimersOnDispose_(); + timeoutId = window.setTimeout(() => { + if (this.setTimeoutIds_.has(timeoutId)) { + this.setTimeoutIds_.delete(timeoutId); + } + fn(); + }, timeout); + this.setTimeoutIds_.add(timeoutId); + return timeoutId; + } + + /** + * Clears a timeout that gets created via `window.setTimeout` or + * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout} + * use this function instead of `window.clearTimout`. If you don't your dispose + * listener will not get cleaned up until {@link Component#dispose}! + * + * @param {number} timeoutId + * The id of the timeout to clear. The return value of + * {@link Component#setTimeout} or `window.setTimeout`. + * + * @return {number} + * Returns the timeout id that was cleared. + * + * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout} + */ + clearTimeout(timeoutId) { + if (this.setTimeoutIds_.has(timeoutId)) { + this.setTimeoutIds_.delete(timeoutId); + window.clearTimeout(timeoutId); + } + return timeoutId; + } + + /** + * Creates a function that gets run every `x` milliseconds. This function is a wrapper + * around `window.setInterval`. There are a few reasons to use this one instead though. + * 1. It gets cleared via {@link Component#clearInterval} when + * {@link Component#dispose} gets called. + * 2. The function callback will be a {@link Component~GenericCallback} + * + * @param {Component~GenericCallback} fn + * The function to run every `x` seconds. + * + * @param {number} interval + * Execute the specified function every `x` milliseconds. + * + * @return {number} + * Returns an id that can be used to identify the interval. It can also be be used in + * {@link Component#clearInterval} to clear the interval. + * + * @listens Component#dispose + * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval} + */ + setInterval(fn, interval) { + fn = bind_(this, fn); + this.clearTimersOnDispose_(); + const intervalId = window.setInterval(fn, interval); + this.setIntervalIds_.add(intervalId); + return intervalId; + } + + /** + * Clears an interval that gets created via `window.setInterval` or + * {@link Component#setInterval}. If you set an interval via {@link Component#setInterval} + * use this function instead of `window.clearInterval`. If you don't your dispose + * listener will not get cleaned up until {@link Component#dispose}! + * + * @param {number} intervalId + * The id of the interval to clear. The return value of + * {@link Component#setInterval} or `window.setInterval`. + * + * @return {number} + * Returns the interval id that was cleared. + * + * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval} + */ + clearInterval(intervalId) { + if (this.setIntervalIds_.has(intervalId)) { + this.setIntervalIds_.delete(intervalId); + window.clearInterval(intervalId); + } + return intervalId; + } + + /** + * Queues up a callback to be passed to requestAnimationFrame (rAF), but + * with a few extra bonuses: + * + * - Supports browsers that do not support rAF by falling back to + * {@link Component#setTimeout}. + * + * - The callback is turned into a {@link Component~GenericCallback} (i.e. + * bound to the component). + * + * - Automatic cancellation of the rAF callback is handled if the component + * is disposed before it is called. + * + * @param {Component~GenericCallback} fn + * A function that will be bound to this component and executed just + * before the browser's next repaint. + * + * @return {number} + * Returns an rAF ID that gets used to identify the timeout. It can + * also be used in {@link Component#cancelAnimationFrame} to cancel + * the animation frame callback. + * + * @listens Component#dispose + * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame} + */ + requestAnimationFrame(fn) { + this.clearTimersOnDispose_(); + + // declare as variables so they are properly available in rAF function + // eslint-disable-next-line + var id; + fn = bind_(this, fn); + id = window.requestAnimationFrame(() => { + if (this.rafIds_.has(id)) { + this.rafIds_.delete(id); + } + fn(); + }); + this.rafIds_.add(id); + return id; + } + + /** + * Request an animation frame, but only one named animation + * frame will be queued. Another will never be added until + * the previous one finishes. + * + * @param {string} name + * The name to give this requestAnimationFrame + * + * @param {Component~GenericCallback} fn + * A function that will be bound to this component and executed just + * before the browser's next repaint. + */ + requestNamedAnimationFrame(name, fn) { + if (this.namedRafs_.has(name)) { + return; + } + this.clearTimersOnDispose_(); + fn = bind_(this, fn); + const id = this.requestAnimationFrame(() => { + fn(); + if (this.namedRafs_.has(name)) { + this.namedRafs_.delete(name); + } + }); + this.namedRafs_.set(name, id); + return name; + } + + /** + * Cancels a current named animation frame if it exists. + * + * @param {string} name + * The name of the requestAnimationFrame to cancel. + */ + cancelNamedAnimationFrame(name) { + if (!this.namedRafs_.has(name)) { + return; + } + this.cancelAnimationFrame(this.namedRafs_.get(name)); + this.namedRafs_.delete(name); + } + + /** + * Cancels a queued callback passed to {@link Component#requestAnimationFrame} + * (rAF). + * + * If you queue an rAF callback via {@link Component#requestAnimationFrame}, + * use this function instead of `window.cancelAnimationFrame`. If you don't, + * your dispose listener will not get cleaned up until {@link Component#dispose}! + * + * @param {number} id + * The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}. + * + * @return {number} + * Returns the rAF ID that was cleared. + * + * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame} + */ + cancelAnimationFrame(id) { + if (this.rafIds_.has(id)) { + this.rafIds_.delete(id); + window.cancelAnimationFrame(id); + } + return id; + } + + /** + * A function to setup `requestAnimationFrame`, `setTimeout`, + * and `setInterval`, clearing on dispose. + * + * > Previously each timer added and removed dispose listeners on it's own. + * For better performance it was decided to batch them all, and use `Set`s + * to track outstanding timer ids. + * + * @private + */ + clearTimersOnDispose_() { + if (this.clearingTimersOnDispose_) { + return; + } + this.clearingTimersOnDispose_ = true; + this.one('dispose', () => { + [['namedRafs_', 'cancelNamedAnimationFrame'], ['rafIds_', 'cancelAnimationFrame'], ['setTimeoutIds_', 'clearTimeout'], ['setIntervalIds_', 'clearInterval']].forEach(([idName, cancelName]) => { + // for a `Set` key will actually be the value again + // so forEach((val, val) =>` but for maps we want to use + // the key. + this[idName].forEach((val, key) => this[cancelName](key)); + }); + this.clearingTimersOnDispose_ = false; + }); + } + + /** + * Register a `Component` with `videojs` given the name and the component. + * + * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s + * should be registered using {@link Tech.registerTech} or + * {@link videojs:videojs.registerTech}. + * + * > NOTE: This function can also be seen on videojs as + * {@link videojs:videojs.registerComponent}. + * + * @param {string} name + * The name of the `Component` to register. + * + * @param {Component} ComponentToRegister + * The `Component` class to register. + * + * @return {Component} + * The `Component` that was registered. + */ + static registerComponent(name, ComponentToRegister) { + if (typeof name !== 'string' || !name) { + throw new Error(`Illegal component name, "${name}"; must be a non-empty string.`); + } + const Tech = Component.getComponent('Tech'); + + // We need to make sure this check is only done if Tech has been registered. + const isTech = Tech && Tech.isTech(ComponentToRegister); + const isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype); + if (isTech || !isComp) { + let reason; + if (isTech) { + reason = 'techs must be registered using Tech.registerTech()'; + } else { + reason = 'must be a Component subclass'; + } + throw new Error(`Illegal component, "${name}"; ${reason}.`); + } + name = toTitleCase(name); + if (!Component.components_) { + Component.components_ = {}; + } + const Player = Component.getComponent('Player'); + if (name === 'Player' && Player && Player.players) { + const players = Player.players; + const playerNames = Object.keys(players); + + // If we have players that were disposed, then their name will still be + // in Players.players. So, we must loop through and verify that the value + // for each item is not null. This allows registration of the Player component + // after all players have been disposed or before any were created. + if (players && playerNames.length > 0 && playerNames.map(pname => players[pname]).every(Boolean)) { + throw new Error('Can not register Player component after player has been created.'); + } + } + Component.components_[name] = ComponentToRegister; + Component.components_[toLowerCase(name)] = ComponentToRegister; + return ComponentToRegister; + } + + /** + * Get a `Component` based on the name it was registered with. + * + * @param {string} name + * The Name of the component to get. + * + * @return {typeof Component} + * The `Component` that got registered under the given name. + */ + static getComponent(name) { + if (!name || !Component.components_) { + return; + } + return Component.components_[name]; + } + } + Component.registerComponent('Component', Component); + + /** + * @file time.js + * @module time + */ + + /** + * Returns the time for the specified index at the start or end + * of a TimeRange object. + * + * @typedef {Function} TimeRangeIndex + * + * @param {number} [index=0] + * The range number to return the time for. + * + * @return {number} + * The time offset at the specified index. + * + * @deprecated The index argument must be provided. + * In the future, leaving it out will throw an error. + */ + + /** + * An object that contains ranges of time, which mimics {@link TimeRanges}. + * + * @typedef {Object} TimeRange + * + * @property {number} length + * The number of time ranges represented by this object. + * + * @property {module:time~TimeRangeIndex} start + * Returns the time offset at which a specified time range begins. + * + * @property {module:time~TimeRangeIndex} end + * Returns the time offset at which a specified time range ends. + * + * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges + */ + + /** + * Check if any of the time ranges are over the maximum index. + * + * @private + * @param {string} fnName + * The function name to use for logging + * + * @param {number} index + * The index to check + * + * @param {number} maxIndex + * The maximum possible index + * + * @throws {Error} if the timeRanges provided are over the maxIndex + */ + function rangeCheck(fnName, index, maxIndex) { + if (typeof index !== 'number' || index < 0 || index > maxIndex) { + throw new Error(`Failed to execute '${fnName}' on 'TimeRanges': The index provided (${index}) is non-numeric or out of bounds (0-${maxIndex}).`); + } + } + + /** + * Get the time for the specified index at the start or end + * of a TimeRange object. + * + * @private + * @param {string} fnName + * The function name to use for logging + * + * @param {string} valueIndex + * The property that should be used to get the time. should be + * 'start' or 'end' + * + * @param {Array} ranges + * An array of time ranges + * + * @param {Array} [rangeIndex=0] + * The index to start the search at + * + * @return {number} + * The time that offset at the specified index. + * + * @deprecated rangeIndex must be set to a value, in the future this will throw an error. + * @throws {Error} if rangeIndex is more than the length of ranges + */ + function getRange(fnName, valueIndex, ranges, rangeIndex) { + rangeCheck(fnName, rangeIndex, ranges.length - 1); + return ranges[rangeIndex][valueIndex]; + } + + /** + * Create a time range object given ranges of time. + * + * @private + * @param {Array} [ranges] + * An array of time ranges. + * + * @return {TimeRange} + */ + function createTimeRangesObj(ranges) { + let timeRangesObj; + if (ranges === undefined || ranges.length === 0) { + timeRangesObj = { + length: 0, + start() { + throw new Error('This TimeRanges object is empty'); + }, + end() { + throw new Error('This TimeRanges object is empty'); + } + }; + } else { + timeRangesObj = { + length: ranges.length, + start: getRange.bind(null, 'start', 0, ranges), + end: getRange.bind(null, 'end', 1, ranges) + }; + } + if (window.Symbol && window.Symbol.iterator) { + timeRangesObj[window.Symbol.iterator] = () => (ranges || []).values(); + } + return timeRangesObj; + } + + /** + * Create a `TimeRange` object which mimics an + * {@link https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges|HTML5 TimeRanges instance}. + * + * @param {number|Array[]} start + * The start of a single range (a number) or an array of ranges (an + * array of arrays of two numbers each). + * + * @param {number} end + * The end of a single range. Cannot be used with the array form of + * the `start` argument. + * + * @return {TimeRange} + */ + function createTimeRanges(start, end) { + if (Array.isArray(start)) { + return createTimeRangesObj(start); + } else if (start === undefined || end === undefined) { + return createTimeRangesObj(); + } + return createTimeRangesObj([[start, end]]); + } + + /** + * Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in + * seconds) will force a number of leading zeros to cover the length of the + * guide. + * + * @private + * @param {number} seconds + * Number of seconds to be turned into a string + * + * @param {number} guide + * Number (in seconds) to model the string after + * + * @return {string} + * Time formatted as H:MM:SS or M:SS + */ + const defaultImplementation = function (seconds, guide) { + seconds = seconds < 0 ? 0 : seconds; + let s = Math.floor(seconds % 60); + let m = Math.floor(seconds / 60 % 60); + let h = Math.floor(seconds / 3600); + const gm = Math.floor(guide / 60 % 60); + const gh = Math.floor(guide / 3600); + + // handle invalid times + if (isNaN(seconds) || seconds === Infinity) { + // '-' is false for all relational operators (e.g. <, >=) so this setting + // will add the minimum number of fields specified by the guide + h = m = s = '-'; + } + + // Check if we need to show hours + h = h > 0 || gh > 0 ? h + ':' : ''; + + // If hours are showing, we may need to add a leading zero. + // Always show at least one digit of minutes. + m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':'; + + // Check if leading zero is need for seconds + s = s < 10 ? '0' + s : s; + return h + m + s; + }; + + // Internal pointer to the current implementation. + let implementation = defaultImplementation; + + /** + * Replaces the default formatTime implementation with a custom implementation. + * + * @param {Function} customImplementation + * A function which will be used in place of the default formatTime + * implementation. Will receive the current time in seconds and the + * guide (in seconds) as arguments. + */ + function setFormatTime(customImplementation) { + implementation = customImplementation; + } + + /** + * Resets formatTime to the default implementation. + */ + function resetFormatTime() { + implementation = defaultImplementation; + } + + /** + * Delegates to either the default time formatting function or a custom + * function supplied via `setFormatTime`. + * + * Formats seconds as a time string (H:MM:SS or M:SS). Supplying a + * guide (in seconds) will force a number of leading zeros to cover the + * length of the guide. + * + * @example formatTime(125, 600) === "02:05" + * @param {number} seconds + * Number of seconds to be turned into a string + * + * @param {number} guide + * Number (in seconds) to model the string after + * + * @return {string} + * Time formatted as H:MM:SS or M:SS + */ + function formatTime(seconds, guide = seconds) { + return implementation(seconds, guide); + } + + var Time = /*#__PURE__*/Object.freeze({ + __proto__: null, + createTimeRanges: createTimeRanges, + createTimeRange: createTimeRanges, + setFormatTime: setFormatTime, + resetFormatTime: resetFormatTime, + formatTime: formatTime + }); + + /** + * @file buffer.js + * @module buffer + */ + + /** + * Compute the percentage of the media that has been buffered. + * + * @param { import('./time').TimeRange } buffered + * The current `TimeRanges` object representing buffered time ranges + * + * @param {number} duration + * Total duration of the media + * + * @return {number} + * Percent buffered of the total duration in decimal form. + */ + function bufferedPercent(buffered, duration) { + let bufferedDuration = 0; + let start; + let end; + if (!duration) { + return 0; + } + if (!buffered || !buffered.length) { + buffered = createTimeRanges(0, 0); + } + for (let i = 0; i < buffered.length; i++) { + start = buffered.start(i); + end = buffered.end(i); + + // buffered end can be bigger than duration by a very small fraction + if (end > duration) { + end = duration; + } + bufferedDuration += end - start; + } + return bufferedDuration / duration; + } + + /** + * @file media-error.js + */ + + /** + * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class. + * + * @param {number|string|Object|MediaError} value + * This can be of multiple types: + * - number: should be a standard error code + * - string: an error message (the code will be 0) + * - Object: arbitrary properties + * - `MediaError` (native): used to populate a video.js `MediaError` object + * - `MediaError` (video.js): will return itself if it's already a + * video.js `MediaError` object. + * + * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror} + * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes} + * + * @class MediaError + */ + function MediaError(value) { + // Allow redundant calls to this constructor to avoid having `instanceof` + // checks peppered around the code. + if (value instanceof MediaError) { + return value; + } + if (typeof value === 'number') { + this.code = value; + } else if (typeof value === 'string') { + // default code is zero, so this is a custom error + this.message = value; + } else if (isObject(value)) { + // We assign the `code` property manually because native `MediaError` objects + // do not expose it as an own/enumerable property of the object. + if (typeof value.code === 'number') { + this.code = value.code; + } + Object.assign(this, value); + } + if (!this.message) { + this.message = MediaError.defaultMessages[this.code] || ''; + } + } + + /** + * The error code that refers two one of the defined `MediaError` types + * + * @type {Number} + */ + MediaError.prototype.code = 0; + + /** + * An optional message that to show with the error. Message is not part of the HTML5 + * video spec but allows for more informative custom errors. + * + * @type {String} + */ + MediaError.prototype.message = ''; + + /** + * An optional status code that can be set by plugins to allow even more detail about + * the error. For example a plugin might provide a specific HTTP status code and an + * error message for that code. Then when the plugin gets that error this class will + * know how to display an error message for it. This allows a custom message to show + * up on the `Player` error overlay. + * + * @type {Array} + */ + MediaError.prototype.status = null; + + /** + * An object containing an error type, as well as other information regarding the error. + * + * @typedef {{errorType: string, [key: string]: any}} ErrorMetadata + */ + + /** + * An optional object to give more detail about the error. This can be used to give + * a higher level of specificity to an error versus the more generic MediaError codes. + * `metadata` expects an `errorType` string that should align with the values from videojs.Error. + * + * @type {ErrorMetadata} + */ + MediaError.prototype.metadata = null; + + /** + * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the + * specification listed under {@link MediaError} for more information. + * + * @enum {array} + * @readonly + * @property {string} 0 - MEDIA_ERR_CUSTOM + * @property {string} 1 - MEDIA_ERR_ABORTED + * @property {string} 2 - MEDIA_ERR_NETWORK + * @property {string} 3 - MEDIA_ERR_DECODE + * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED + * @property {string} 5 - MEDIA_ERR_ENCRYPTED + */ + MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED']; + + /** + * The default `MediaError` messages based on the {@link MediaError.errorTypes}. + * + * @type {Array} + * @constant + */ + MediaError.defaultMessages = { + 1: 'You aborted the media playback', + 2: 'A network error caused the media download to fail part-way.', + 3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.', + 4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.', + 5: 'The media is encrypted and we do not have the keys to decrypt it.' + }; + + /** + * W3C error code for any custom error. + * + * @member MediaError#MEDIA_ERR_CUSTOM + * @constant {number} + * @default 0 + */ + MediaError.MEDIA_ERR_CUSTOM = 0; + + /** + * W3C error code for any custom error. + * + * @member MediaError.MEDIA_ERR_CUSTOM + * @constant {number} + * @default 0 + */ + MediaError.prototype.MEDIA_ERR_CUSTOM = 0; + + /** + * W3C error code for media error aborted. + * + * @member MediaError#MEDIA_ERR_ABORTED + * @constant {number} + * @default 1 + */ + MediaError.MEDIA_ERR_ABORTED = 1; + + /** + * W3C error code for media error aborted. + * + * @member MediaError.MEDIA_ERR_ABORTED + * @constant {number} + * @default 1 + */ + MediaError.prototype.MEDIA_ERR_ABORTED = 1; + + /** + * W3C error code for any network error. + * + * @member MediaError#MEDIA_ERR_NETWORK + * @constant {number} + * @default 2 + */ + MediaError.MEDIA_ERR_NETWORK = 2; + + /** + * W3C error code for any network error. + * + * @member MediaError.MEDIA_ERR_NETWORK + * @constant {number} + * @default 2 + */ + MediaError.prototype.MEDIA_ERR_NETWORK = 2; + + /** + * W3C error code for any decoding error. + * + * @member MediaError#MEDIA_ERR_DECODE + * @constant {number} + * @default 3 + */ + MediaError.MEDIA_ERR_DECODE = 3; + + /** + * W3C error code for any decoding error. + * + * @member MediaError.MEDIA_ERR_DECODE + * @constant {number} + * @default 3 + */ + MediaError.prototype.MEDIA_ERR_DECODE = 3; + + /** + * W3C error code for any time that a source is not supported. + * + * @member MediaError#MEDIA_ERR_SRC_NOT_SUPPORTED + * @constant {number} + * @default 4 + */ + MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4; + + /** + * W3C error code for any time that a source is not supported. + * + * @member MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED + * @constant {number} + * @default 4 + */ + MediaError.prototype.MEDIA_ERR_SRC_NOT_SUPPORTED = 4; + + /** + * W3C error code for any time that a source is encrypted. + * + * @member MediaError#MEDIA_ERR_ENCRYPTED + * @constant {number} + * @default 5 + */ + MediaError.MEDIA_ERR_ENCRYPTED = 5; + + /** + * W3C error code for any time that a source is encrypted. + * + * @member MediaError.MEDIA_ERR_ENCRYPTED + * @constant {number} + * @default 5 + */ + MediaError.prototype.MEDIA_ERR_ENCRYPTED = 5; + + var tuple = SafeParseTuple; + function SafeParseTuple(obj, reviver) { + var json; + var error = null; + try { + json = JSON.parse(obj, reviver); + } catch (err) { + error = err; + } + return [error, json]; + } + + /** + * Returns whether an object is `Promise`-like (i.e. has a `then` method). + * + * @param {Object} value + * An object that may or may not be `Promise`-like. + * + * @return {boolean} + * Whether or not the object is `Promise`-like. + */ + function isPromise(value) { + return value !== undefined && value !== null && typeof value.then === 'function'; + } + + /** + * Silence a Promise-like object. + * + * This is useful for avoiding non-harmful, but potentially confusing "uncaught + * play promise" rejection error messages. + * + * @param {Object} value + * An object that may or may not be `Promise`-like. + */ + function silencePromise(value) { + if (isPromise(value)) { + value.then(null, e => {}); + } + } + + /** + * @file text-track-list-converter.js Utilities for capturing text track state and + * re-creating tracks based on a capture. + * + * @module text-track-list-converter + */ + + /** + * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that + * represents the {@link TextTrack}'s state. + * + * @param {TextTrack} track + * The text track to query. + * + * @return {Object} + * A serializable javascript representation of the TextTrack. + * @private + */ + const trackToJson_ = function (track) { + const ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce((acc, prop, i) => { + if (track[prop]) { + acc[prop] = track[prop]; + } + return acc; + }, { + cues: track.cues && Array.prototype.map.call(track.cues, function (cue) { + return { + startTime: cue.startTime, + endTime: cue.endTime, + text: cue.text, + id: cue.id + }; + }) + }); + return ret; + }; + + /** + * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the + * state of all {@link TextTrack}s currently configured. The return array is compatible with + * {@link text-track-list-converter:jsonToTextTracks}. + * + * @param { import('../tech/tech').default } tech + * The tech object to query + * + * @return {Array} + * A serializable javascript representation of the {@link Tech}s + * {@link TextTrackList}. + */ + const textTracksToJson = function (tech) { + const trackEls = tech.$$('track'); + const trackObjs = Array.prototype.map.call(trackEls, t => t.track); + const tracks = Array.prototype.map.call(trackEls, function (trackEl) { + const json = trackToJson_(trackEl.track); + if (trackEl.src) { + json.src = trackEl.src; + } + return json; + }); + return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) { + return trackObjs.indexOf(track) === -1; + }).map(trackToJson_)); + }; + + /** + * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript + * object {@link TextTrack} representations. + * + * @param {Array} json + * An array of `TextTrack` representation objects, like those that would be + * produced by `textTracksToJson`. + * + * @param {Tech} tech + * The `Tech` to create the `TextTrack`s on. + */ + const jsonToTextTracks = function (json, tech) { + json.forEach(function (track) { + const addedTrack = tech.addRemoteTextTrack(track).track; + if (!track.src && track.cues) { + track.cues.forEach(cue => addedTrack.addCue(cue)); + } + }); + return tech.textTracks(); + }; + var textTrackConverter = { + textTracksToJson, + jsonToTextTracks, + trackToJson_ + }; + + /** + * @file modal-dialog.js + */ + const MODAL_CLASS_NAME = 'vjs-modal-dialog'; + + /** + * The `ModalDialog` displays over the video and its controls, which blocks + * interaction with the player until it is closed. + * + * Modal dialogs include a "Close" button and will close when that button + * is activated - or when ESC is pressed anywhere. + * + * @extends Component + */ + class ModalDialog extends Component { + /** + * Create an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @param { import('./utils/dom').ContentDescriptor} [options.content=undefined] + * Provide customized content for this modal. + * + * @param {string} [options.description] + * A text description for the modal, primarily for accessibility. + * + * @param {boolean} [options.fillAlways=false] + * Normally, modals are automatically filled only the first time + * they open. This tells the modal to refresh its content + * every time it opens. + * + * @param {string} [options.label] + * A text label for the modal, primarily for accessibility. + * + * @param {boolean} [options.pauseOnOpen=true] + * If `true`, playback will will be paused if playing when + * the modal opens, and resumed when it closes. + * + * @param {boolean} [options.temporary=true] + * If `true`, the modal can only be opened once; it will be + * disposed as soon as it's closed. + * + * @param {boolean} [options.uncloseable=false] + * If `true`, the user will not be able to close the modal + * through the UI in the normal ways. Programmatic closing is + * still possible. + */ + constructor(player, options) { + super(player, options); + this.handleKeyDown_ = e => this.handleKeyDown(e); + this.close_ = e => this.close(e); + this.opened_ = this.hasBeenOpened_ = this.hasBeenFilled_ = false; + this.closeable(!this.options_.uncloseable); + this.content(this.options_.content); + + // Make sure the contentEl is defined AFTER any children are initialized + // because we only want the contents of the modal in the contentEl + // (not the UI elements like the close button). + this.contentEl_ = createEl('div', { + className: `${MODAL_CLASS_NAME}-content` + }, { + role: 'document' + }); + this.descEl_ = createEl('p', { + className: `${MODAL_CLASS_NAME}-description vjs-control-text`, + id: this.el().getAttribute('aria-describedby') + }); + textContent(this.descEl_, this.description()); + this.el_.appendChild(this.descEl_); + this.el_.appendChild(this.contentEl_); + } + + /** + * Create the `ModalDialog`'s DOM element + * + * @return {Element} + * The DOM element that gets created. + */ + createEl() { + return super.createEl('div', { + className: this.buildCSSClass(), + tabIndex: -1 + }, { + 'aria-describedby': `${this.id()}_description`, + 'aria-hidden': 'true', + 'aria-label': this.label(), + 'role': 'dialog', + 'aria-live': 'polite' + }); + } + dispose() { + this.contentEl_ = null; + this.descEl_ = null; + this.previouslyActiveEl_ = null; + super.dispose(); + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `${MODAL_CLASS_NAME} vjs-hidden ${super.buildCSSClass()}`; + } + + /** + * Returns the label string for this modal. Primarily used for accessibility. + * + * @return {string} + * the localized or raw label of this modal. + */ + label() { + return this.localize(this.options_.label || 'Modal Window'); + } + + /** + * Returns the description string for this modal. Primarily used for + * accessibility. + * + * @return {string} + * The localized or raw description of this modal. + */ + description() { + let desc = this.options_.description || this.localize('This is a modal window.'); + + // Append a universal closeability message if the modal is closeable. + if (this.closeable()) { + desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.'); + } + return desc; + } + + /** + * Opens the modal. + * + * @fires ModalDialog#beforemodalopen + * @fires ModalDialog#modalopen + */ + open() { + if (this.opened_) { + if (this.options_.fillAlways) { + this.fill(); + } + return; + } + const player = this.player(); + + /** + * Fired just before a `ModalDialog` is opened. + * + * @event ModalDialog#beforemodalopen + * @type {Event} + */ + this.trigger('beforemodalopen'); + this.opened_ = true; + + // Fill content if the modal has never opened before and + // never been filled. + if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) { + this.fill(); + } + + // If the player was playing, pause it and take note of its previously + // playing state. + this.wasPlaying_ = !player.paused(); + if (this.options_.pauseOnOpen && this.wasPlaying_) { + player.pause(); + } + this.on('keydown', this.handleKeyDown_); + + // Hide controls and note if they were enabled. + this.hadControls_ = player.controls(); + player.controls(false); + this.show(); + this.conditionalFocus_(); + this.el().setAttribute('aria-hidden', 'false'); + + /** + * Fired just after a `ModalDialog` is opened. + * + * @event ModalDialog#modalopen + * @type {Event} + */ + this.trigger('modalopen'); + this.hasBeenOpened_ = true; + } + + /** + * If the `ModalDialog` is currently open or closed. + * + * @param {boolean} [value] + * If given, it will open (`true`) or close (`false`) the modal. + * + * @return {boolean} + * the current open state of the modaldialog + */ + opened(value) { + if (typeof value === 'boolean') { + this[value ? 'open' : 'close'](); + } + return this.opened_; + } + + /** + * Closes the modal, does nothing if the `ModalDialog` is + * not open. + * + * @fires ModalDialog#beforemodalclose + * @fires ModalDialog#modalclose + */ + close() { + if (!this.opened_) { + return; + } + const player = this.player(); + + /** + * Fired just before a `ModalDialog` is closed. + * + * @event ModalDialog#beforemodalclose + * @type {Event} + */ + this.trigger('beforemodalclose'); + this.opened_ = false; + if (this.wasPlaying_ && this.options_.pauseOnOpen) { + player.play(); + } + this.off('keydown', this.handleKeyDown_); + if (this.hadControls_) { + player.controls(true); + } + this.hide(); + this.el().setAttribute('aria-hidden', 'true'); + + /** + * Fired just after a `ModalDialog` is closed. + * + * @event ModalDialog#modalclose + * @type {Event} + */ + this.trigger('modalclose'); + this.conditionalBlur_(); + if (this.options_.temporary) { + this.dispose(); + } + } + + /** + * Check to see if the `ModalDialog` is closeable via the UI. + * + * @param {boolean} [value] + * If given as a boolean, it will set the `closeable` option. + * + * @return {boolean} + * Returns the final value of the closable option. + */ + closeable(value) { + if (typeof value === 'boolean') { + const closeable = this.closeable_ = !!value; + let close = this.getChild('closeButton'); + + // If this is being made closeable and has no close button, add one. + if (closeable && !close) { + // The close button should be a child of the modal - not its + // content element, so temporarily change the content element. + const temp = this.contentEl_; + this.contentEl_ = this.el_; + close = this.addChild('closeButton', { + controlText: 'Close Modal Dialog' + }); + this.contentEl_ = temp; + this.on(close, 'close', this.close_); + } + + // If this is being made uncloseable and has a close button, remove it. + if (!closeable && close) { + this.off(close, 'close', this.close_); + this.removeChild(close); + close.dispose(); + } + } + return this.closeable_; + } + + /** + * Fill the modal's content element with the modal's "content" option. + * The content element will be emptied before this change takes place. + */ + fill() { + this.fillWith(this.content()); + } + + /** + * Fill the modal's content element with arbitrary content. + * The content element will be emptied before this change takes place. + * + * @fires ModalDialog#beforemodalfill + * @fires ModalDialog#modalfill + * + * @param { import('./utils/dom').ContentDescriptor} [content] + * The same rules apply to this as apply to the `content` option. + */ + fillWith(content) { + const contentEl = this.contentEl(); + const parentEl = contentEl.parentNode; + const nextSiblingEl = contentEl.nextSibling; + + /** + * Fired just before a `ModalDialog` is filled with content. + * + * @event ModalDialog#beforemodalfill + * @type {Event} + */ + this.trigger('beforemodalfill'); + this.hasBeenFilled_ = true; + + // Detach the content element from the DOM before performing + // manipulation to avoid modifying the live DOM multiple times. + parentEl.removeChild(contentEl); + this.empty(); + insertContent(contentEl, content); + /** + * Fired just after a `ModalDialog` is filled with content. + * + * @event ModalDialog#modalfill + * @type {Event} + */ + this.trigger('modalfill'); + + // Re-inject the re-filled content element. + if (nextSiblingEl) { + parentEl.insertBefore(contentEl, nextSiblingEl); + } else { + parentEl.appendChild(contentEl); + } + + // make sure that the close button is last in the dialog DOM + const closeButton = this.getChild('closeButton'); + if (closeButton) { + parentEl.appendChild(closeButton.el_); + } + } + + /** + * Empties the content element. This happens anytime the modal is filled. + * + * @fires ModalDialog#beforemodalempty + * @fires ModalDialog#modalempty + */ + empty() { + /** + * Fired just before a `ModalDialog` is emptied. + * + * @event ModalDialog#beforemodalempty + * @type {Event} + */ + this.trigger('beforemodalempty'); + emptyEl(this.contentEl()); + + /** + * Fired just after a `ModalDialog` is emptied. + * + * @event ModalDialog#modalempty + * @type {Event} + */ + this.trigger('modalempty'); + } + + /** + * Gets or sets the modal content, which gets normalized before being + * rendered into the DOM. + * + * This does not update the DOM or fill the modal, but it is called during + * that process. + * + * @param { import('./utils/dom').ContentDescriptor} [value] + * If defined, sets the internal content value to be used on the + * next call(s) to `fill`. This value is normalized before being + * inserted. To "clear" the internal content value, pass `null`. + * + * @return { import('./utils/dom').ContentDescriptor} + * The current content of the modal dialog + */ + content(value) { + if (typeof value !== 'undefined') { + this.content_ = value; + } + return this.content_; + } + + /** + * conditionally focus the modal dialog if focus was previously on the player. + * + * @private + */ + conditionalFocus_() { + const activeEl = document.activeElement; + const playerEl = this.player_.el_; + this.previouslyActiveEl_ = null; + if (playerEl.contains(activeEl) || playerEl === activeEl) { + this.previouslyActiveEl_ = activeEl; + this.focus(); + } + } + + /** + * conditionally blur the element and refocus the last focused element + * + * @private + */ + conditionalBlur_() { + if (this.previouslyActiveEl_) { + this.previouslyActiveEl_.focus(); + this.previouslyActiveEl_ = null; + } + } + + /** + * Keydown handler. Attached when modal is focused. + * + * @listens keydown + */ + handleKeyDown(event) { + // Do not allow keydowns to reach out of the modal dialog. + event.stopPropagation(); + if (keycode.isEventKey(event, 'Escape') && this.closeable()) { + event.preventDefault(); + this.close(); + return; + } + + // exit early if it isn't a tab key + if (!keycode.isEventKey(event, 'Tab')) { + return; + } + const focusableEls = this.focusableEls_(); + const activeEl = this.el_.querySelector(':focus'); + let focusIndex; + for (let i = 0; i < focusableEls.length; i++) { + if (activeEl === focusableEls[i]) { + focusIndex = i; + break; + } + } + if (document.activeElement === this.el_) { + focusIndex = 0; + } + if (event.shiftKey && focusIndex === 0) { + focusableEls[focusableEls.length - 1].focus(); + event.preventDefault(); + } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) { + focusableEls[0].focus(); + event.preventDefault(); + } + } + + /** + * get all focusable elements + * + * @private + */ + focusableEls_() { + const allChildren = this.el_.querySelectorAll('*'); + return Array.prototype.filter.call(allChildren, child => { + 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'); + }); + } + } + + /** + * Default options for `ModalDialog` default options. + * + * @type {Object} + * @private + */ + ModalDialog.prototype.options_ = { + pauseOnOpen: true, + temporary: true + }; + Component.registerComponent('ModalDialog', ModalDialog); + + /** + * @file track-list.js + */ + + /** + * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and + * {@link VideoTrackList} + * + * @extends EventTarget + */ + class TrackList extends EventTarget { + /** + * Create an instance of this class + * + * @param { import('./track').default[] } tracks + * A list of tracks to initialize the list with. + * + * @abstract + */ + constructor(tracks = []) { + super(); + this.tracks_ = []; + + /** + * @memberof TrackList + * @member {number} length + * The current number of `Track`s in the this Trackist. + * @instance + */ + Object.defineProperty(this, 'length', { + get() { + return this.tracks_.length; + } + }); + for (let i = 0; i < tracks.length; i++) { + this.addTrack(tracks[i]); + } + } + + /** + * Add a {@link Track} to the `TrackList` + * + * @param { import('./track').default } track + * The audio, video, or text track to add to the list. + * + * @fires TrackList#addtrack + */ + addTrack(track) { + const index = this.tracks_.length; + if (!('' + index in this)) { + Object.defineProperty(this, index, { + get() { + return this.tracks_[index]; + } + }); + } + + // Do not add duplicate tracks + if (this.tracks_.indexOf(track) === -1) { + this.tracks_.push(track); + /** + * Triggered when a track is added to a track list. + * + * @event TrackList#addtrack + * @type {Event} + * @property {Track} track + * A reference to track that was added. + */ + this.trigger({ + track, + type: 'addtrack', + target: this + }); + } + + /** + * Triggered when a track label is changed. + * + * @event TrackList#addtrack + * @type {Event} + * @property {Track} track + * A reference to track that was added. + */ + track.labelchange_ = () => { + this.trigger({ + track, + type: 'labelchange', + target: this + }); + }; + if (isEvented(track)) { + track.addEventListener('labelchange', track.labelchange_); + } + } + + /** + * Remove a {@link Track} from the `TrackList` + * + * @param { import('./track').default } rtrack + * The audio, video, or text track to remove from the list. + * + * @fires TrackList#removetrack + */ + removeTrack(rtrack) { + let track; + for (let i = 0, l = this.length; i < l; i++) { + if (this[i] === rtrack) { + track = this[i]; + if (track.off) { + track.off(); + } + this.tracks_.splice(i, 1); + break; + } + } + if (!track) { + return; + } + + /** + * Triggered when a track is removed from track list. + * + * @event TrackList#removetrack + * @type {Event} + * @property {Track} track + * A reference to track that was removed. + */ + this.trigger({ + track, + type: 'removetrack', + target: this + }); + } + + /** + * Get a Track from the TrackList by a tracks id + * + * @param {string} id - the id of the track to get + * @method getTrackById + * @return { import('./track').default } + * @private + */ + getTrackById(id) { + let result = null; + for (let i = 0, l = this.length; i < l; i++) { + const track = this[i]; + if (track.id === id) { + result = track; + break; + } + } + return result; + } + } + + /** + * Triggered when a different track is selected/enabled. + * + * @event TrackList#change + * @type {Event} + */ + + /** + * Events that can be called with on + eventName. See {@link EventHandler}. + * + * @property {Object} TrackList#allowedEvents_ + * @protected + */ + TrackList.prototype.allowedEvents_ = { + change: 'change', + addtrack: 'addtrack', + removetrack: 'removetrack', + labelchange: 'labelchange' + }; + + // emulate attribute EventHandler support to allow for feature detection + for (const event in TrackList.prototype.allowedEvents_) { + TrackList.prototype['on' + event] = null; + } + + /** + * @file audio-track-list.js + */ + + /** + * Anywhere we call this function we diverge from the spec + * as we only support one enabled audiotrack at a time + * + * @param {AudioTrackList} list + * list to work on + * + * @param { import('./audio-track').default } track + * The track to skip + * + * @private + */ + const disableOthers$1 = function (list, track) { + for (let i = 0; i < list.length; i++) { + if (!Object.keys(list[i]).length || track.id === list[i].id) { + continue; + } + // another audio track is enabled, disable it + list[i].enabled = false; + } + }; + + /** + * The current list of {@link AudioTrack} for a media file. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist} + * @extends TrackList + */ + class AudioTrackList extends TrackList { + /** + * Create an instance of this class. + * + * @param { import('./audio-track').default[] } [tracks=[]] + * A list of `AudioTrack` to instantiate the list with. + */ + constructor(tracks = []) { + // make sure only 1 track is enabled + // sorted from last index to first index + for (let i = tracks.length - 1; i >= 0; i--) { + if (tracks[i].enabled) { + disableOthers$1(tracks, tracks[i]); + break; + } + } + super(tracks); + this.changing_ = false; + } + + /** + * Add an {@link AudioTrack} to the `AudioTrackList`. + * + * @param { import('./audio-track').default } track + * The AudioTrack to add to the list + * + * @fires TrackList#addtrack + */ + addTrack(track) { + if (track.enabled) { + disableOthers$1(this, track); + } + super.addTrack(track); + // native tracks don't have this + if (!track.addEventListener) { + return; + } + track.enabledChange_ = () => { + // when we are disabling other tracks (since we don't support + // more than one track at a time) we will set changing_ + // to true so that we don't trigger additional change events + if (this.changing_) { + return; + } + this.changing_ = true; + disableOthers$1(this, track); + this.changing_ = false; + this.trigger('change'); + }; + + /** + * @listens AudioTrack#enabledchange + * @fires TrackList#change + */ + track.addEventListener('enabledchange', track.enabledChange_); + } + removeTrack(rtrack) { + super.removeTrack(rtrack); + if (rtrack.removeEventListener && rtrack.enabledChange_) { + rtrack.removeEventListener('enabledchange', rtrack.enabledChange_); + rtrack.enabledChange_ = null; + } + } + } + + /** + * @file video-track-list.js + */ + + /** + * Un-select all other {@link VideoTrack}s that are selected. + * + * @param {VideoTrackList} list + * list to work on + * + * @param { import('./video-track').default } track + * The track to skip + * + * @private + */ + const disableOthers = function (list, track) { + for (let i = 0; i < list.length; i++) { + if (!Object.keys(list[i]).length || track.id === list[i].id) { + continue; + } + // another video track is enabled, disable it + list[i].selected = false; + } + }; + + /** + * The current list of {@link VideoTrack} for a video. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist} + * @extends TrackList + */ + class VideoTrackList extends TrackList { + /** + * Create an instance of this class. + * + * @param {VideoTrack[]} [tracks=[]] + * A list of `VideoTrack` to instantiate the list with. + */ + constructor(tracks = []) { + // make sure only 1 track is enabled + // sorted from last index to first index + for (let i = tracks.length - 1; i >= 0; i--) { + if (tracks[i].selected) { + disableOthers(tracks, tracks[i]); + break; + } + } + super(tracks); + this.changing_ = false; + + /** + * @member {number} VideoTrackList#selectedIndex + * The current index of the selected {@link VideoTrack`}. + */ + Object.defineProperty(this, 'selectedIndex', { + get() { + for (let i = 0; i < this.length; i++) { + if (this[i].selected) { + return i; + } + } + return -1; + }, + set() {} + }); + } + + /** + * Add a {@link VideoTrack} to the `VideoTrackList`. + * + * @param { import('./video-track').default } track + * The VideoTrack to add to the list + * + * @fires TrackList#addtrack + */ + addTrack(track) { + if (track.selected) { + disableOthers(this, track); + } + super.addTrack(track); + // native tracks don't have this + if (!track.addEventListener) { + return; + } + track.selectedChange_ = () => { + if (this.changing_) { + return; + } + this.changing_ = true; + disableOthers(this, track); + this.changing_ = false; + this.trigger('change'); + }; + + /** + * @listens VideoTrack#selectedchange + * @fires TrackList#change + */ + track.addEventListener('selectedchange', track.selectedChange_); + } + removeTrack(rtrack) { + super.removeTrack(rtrack); + if (rtrack.removeEventListener && rtrack.selectedChange_) { + rtrack.removeEventListener('selectedchange', rtrack.selectedChange_); + rtrack.selectedChange_ = null; + } + } + } + + /** + * @file text-track-list.js + */ + + /** + * The current list of {@link TextTrack} for a media file. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist} + * @extends TrackList + */ + class TextTrackList extends TrackList { + /** + * Add a {@link TextTrack} to the `TextTrackList` + * + * @param { import('./text-track').default } track + * The text track to add to the list. + * + * @fires TrackList#addtrack + */ + addTrack(track) { + super.addTrack(track); + if (!this.queueChange_) { + this.queueChange_ = () => this.queueTrigger('change'); + } + if (!this.triggerSelectedlanguagechange) { + this.triggerSelectedlanguagechange_ = () => this.trigger('selectedlanguagechange'); + } + + /** + * @listens TextTrack#modechange + * @fires TrackList#change + */ + track.addEventListener('modechange', this.queueChange_); + const nonLanguageTextTrackKind = ['metadata', 'chapters']; + if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) { + track.addEventListener('modechange', this.triggerSelectedlanguagechange_); + } + } + removeTrack(rtrack) { + super.removeTrack(rtrack); + + // manually remove the event handlers we added + if (rtrack.removeEventListener) { + if (this.queueChange_) { + rtrack.removeEventListener('modechange', this.queueChange_); + } + if (this.selectedlanguagechange_) { + rtrack.removeEventListener('modechange', this.triggerSelectedlanguagechange_); + } + } + } + } + + /** + * @file html-track-element-list.js + */ + + /** + * The current list of {@link HtmlTrackElement}s. + */ + class HtmlTrackElementList { + /** + * Create an instance of this class. + * + * @param {HtmlTrackElement[]} [tracks=[]] + * A list of `HtmlTrackElement` to instantiate the list with. + */ + constructor(trackElements = []) { + this.trackElements_ = []; + + /** + * @memberof HtmlTrackElementList + * @member {number} length + * The current number of `Track`s in the this Trackist. + * @instance + */ + Object.defineProperty(this, 'length', { + get() { + return this.trackElements_.length; + } + }); + for (let i = 0, length = trackElements.length; i < length; i++) { + this.addTrackElement_(trackElements[i]); + } + } + + /** + * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList` + * + * @param {HtmlTrackElement} trackElement + * The track element to add to the list. + * + * @private + */ + addTrackElement_(trackElement) { + const index = this.trackElements_.length; + if (!('' + index in this)) { + Object.defineProperty(this, index, { + get() { + return this.trackElements_[index]; + } + }); + } + + // Do not add duplicate elements + if (this.trackElements_.indexOf(trackElement) === -1) { + this.trackElements_.push(trackElement); + } + } + + /** + * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an + * {@link TextTrack}. + * + * @param {TextTrack} track + * The track associated with a track element. + * + * @return {HtmlTrackElement|undefined} + * The track element that was found or undefined. + * + * @private + */ + getTrackElementByTrack_(track) { + let trackElement_; + for (let i = 0, length = this.trackElements_.length; i < length; i++) { + if (track === this.trackElements_[i].track) { + trackElement_ = this.trackElements_[i]; + break; + } + } + return trackElement_; + } + + /** + * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList` + * + * @param {HtmlTrackElement} trackElement + * The track element to remove from the list. + * + * @private + */ + removeTrackElement_(trackElement) { + for (let i = 0, length = this.trackElements_.length; i < length; i++) { + if (trackElement === this.trackElements_[i]) { + if (this.trackElements_[i].track && typeof this.trackElements_[i].track.off === 'function') { + this.trackElements_[i].track.off(); + } + if (typeof this.trackElements_[i].off === 'function') { + this.trackElements_[i].off(); + } + this.trackElements_.splice(i, 1); + break; + } + } + } + } + + /** + * @file text-track-cue-list.js + */ + + /** + * @typedef {Object} TextTrackCueList~TextTrackCue + * + * @property {string} id + * The unique id for this text track cue + * + * @property {number} startTime + * The start time for this text track cue + * + * @property {number} endTime + * The end time for this text track cue + * + * @property {boolean} pauseOnExit + * Pause when the end time is reached if true. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue} + */ + + /** + * A List of TextTrackCues. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist} + */ + class TextTrackCueList { + /** + * Create an instance of this class.. + * + * @param {Array} cues + * A list of cues to be initialized with + */ + constructor(cues) { + TextTrackCueList.prototype.setCues_.call(this, cues); + + /** + * @memberof TextTrackCueList + * @member {number} length + * The current number of `TextTrackCue`s in the TextTrackCueList. + * @instance + */ + Object.defineProperty(this, 'length', { + get() { + return this.length_; + } + }); + } + + /** + * A setter for cues in this list. Creates getters + * an an index for the cues. + * + * @param {Array} cues + * An array of cues to set + * + * @private + */ + setCues_(cues) { + const oldLength = this.length || 0; + let i = 0; + const l = cues.length; + this.cues_ = cues; + this.length_ = cues.length; + const defineProp = function (index) { + if (!('' + index in this)) { + Object.defineProperty(this, '' + index, { + get() { + return this.cues_[index]; + } + }); + } + }; + if (oldLength < l) { + i = oldLength; + for (; i < l; i++) { + defineProp.call(this, i); + } + } + } + + /** + * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id. + * + * @param {string} id + * The id of the cue that should be searched for. + * + * @return {TextTrackCueList~TextTrackCue|null} + * A single cue or null if none was found. + */ + getCueById(id) { + let result = null; + for (let i = 0, l = this.length; i < l; i++) { + const cue = this[i]; + if (cue.id === id) { + result = cue; + break; + } + } + return result; + } + } + + /** + * @file track-kinds.js + */ + + /** + * All possible `VideoTrackKind`s + * + * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind + * @typedef VideoTrack~Kind + * @enum + */ + const VideoTrackKind = { + alternative: 'alternative', + captions: 'captions', + main: 'main', + sign: 'sign', + subtitles: 'subtitles', + commentary: 'commentary' + }; + + /** + * All possible `AudioTrackKind`s + * + * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind + * @typedef AudioTrack~Kind + * @enum + */ + const AudioTrackKind = { + 'alternative': 'alternative', + 'descriptions': 'descriptions', + 'main': 'main', + 'main-desc': 'main-desc', + 'translation': 'translation', + 'commentary': 'commentary' + }; + + /** + * All possible `TextTrackKind`s + * + * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind + * @typedef TextTrack~Kind + * @enum + */ + const TextTrackKind = { + subtitles: 'subtitles', + captions: 'captions', + descriptions: 'descriptions', + chapters: 'chapters', + metadata: 'metadata' + }; + + /** + * All possible `TextTrackMode`s + * + * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode + * @typedef TextTrack~Mode + * @enum + */ + const TextTrackMode = { + disabled: 'disabled', + hidden: 'hidden', + showing: 'showing' + }; + + /** + * @file track.js + */ + + /** + * A Track class that contains all of the common functionality for {@link AudioTrack}, + * {@link VideoTrack}, and {@link TextTrack}. + * + * > Note: This class should not be used directly + * + * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html} + * @extends EventTarget + * @abstract + */ + class Track extends EventTarget { + /** + * Create an instance of this class. + * + * @param {Object} [options={}] + * Object of option names and values + * + * @param {string} [options.kind=''] + * A valid kind for the track type you are creating. + * + * @param {string} [options.id='vjs_track_' + Guid.newGUID()] + * A unique id for this AudioTrack. + * + * @param {string} [options.label=''] + * The menu label for this track. + * + * @param {string} [options.language=''] + * A valid two character language code. + * + * @abstract + */ + constructor(options = {}) { + super(); + const trackProps = { + id: options.id || 'vjs_track_' + newGUID(), + kind: options.kind || '', + language: options.language || '' + }; + let label = options.label || ''; + + /** + * @memberof Track + * @member {string} id + * The id of this track. Cannot be changed after creation. + * @instance + * + * @readonly + */ + + /** + * @memberof Track + * @member {string} kind + * The kind of track that this is. Cannot be changed after creation. + * @instance + * + * @readonly + */ + + /** + * @memberof Track + * @member {string} language + * The two letter language code for this track. Cannot be changed after + * creation. + * @instance + * + * @readonly + */ + + for (const key in trackProps) { + Object.defineProperty(this, key, { + get() { + return trackProps[key]; + }, + set() {} + }); + } + + /** + * @memberof Track + * @member {string} label + * The label of this track. Cannot be changed after creation. + * @instance + * + * @fires Track#labelchange + */ + Object.defineProperty(this, 'label', { + get() { + return label; + }, + set(newLabel) { + if (newLabel !== label) { + label = newLabel; + + /** + * An event that fires when label changes on this track. + * + * > Note: This is not part of the spec! + * + * @event Track#labelchange + * @type {Event} + */ + this.trigger('labelchange'); + } + } + }); + } + } + + /** + * @file url.js + * @module url + */ + + /** + * @typedef {Object} url:URLObject + * + * @property {string} protocol + * The protocol of the url that was parsed. + * + * @property {string} hostname + * The hostname of the url that was parsed. + * + * @property {string} port + * The port of the url that was parsed. + * + * @property {string} pathname + * The pathname of the url that was parsed. + * + * @property {string} search + * The search query of the url that was parsed. + * + * @property {string} hash + * The hash of the url that was parsed. + * + * @property {string} host + * The host of the url that was parsed. + */ + + /** + * Resolve and parse the elements of a URL. + * + * @function + * @param {String} url + * The url to parse + * + * @return {url:URLObject} + * An object of url details + */ + const parseUrl = function (url) { + // This entire method can be replace with URL once we are able to drop IE11 + + const props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host']; + + // add the url to an anchor and let the browser parse the URL + const a = document.createElement('a'); + a.href = url; + + // Copy the specific URL properties to a new object + // This is also needed for IE because the anchor loses its + // properties when it's removed from the dom + const details = {}; + for (let i = 0; i < props.length; i++) { + details[props[i]] = a[props[i]]; + } + + // IE adds the port to the host property unlike everyone else. If + // a port identifier is added for standard ports, strip it. + if (details.protocol === 'http:') { + details.host = details.host.replace(/:80$/, ''); + } + if (details.protocol === 'https:') { + details.host = details.host.replace(/:443$/, ''); + } + if (!details.protocol) { + details.protocol = window.location.protocol; + } + + /* istanbul ignore if */ + if (!details.host) { + details.host = window.location.host; + } + return details; + }; + + /** + * Get absolute version of relative URL. + * + * @function + * @param {string} url + * URL to make absolute + * + * @return {string} + * Absolute URL + * + * @see http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue + */ + const getAbsoluteURL = function (url) { + // Check if absolute URL + if (!url.match(/^https?:\/\//)) { + // Add the url to an anchor and let the browser parse it to convert to an absolute url + const a = document.createElement('a'); + a.href = url; + url = a.href; + } + return url; + }; + + /** + * Returns the extension of the passed file name. It will return an empty string + * if passed an invalid path. + * + * @function + * @param {string} path + * The fileName path like '/path/to/file.mp4' + * + * @return {string} + * The extension in lower case or an empty string if no + * extension could be found. + */ + const getFileExtension = function (path) { + if (typeof path === 'string') { + const splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/; + const pathParts = splitPathRe.exec(path); + if (pathParts) { + return pathParts.pop().toLowerCase(); + } + } + return ''; + }; + + /** + * Returns whether the url passed is a cross domain request or not. + * + * @function + * @param {string} url + * The url to check. + * + * @param {Object} [winLoc] + * the domain to check the url against, defaults to window.location + * + * @param {string} [winLoc.protocol] + * The window location protocol defaults to window.location.protocol + * + * @param {string} [winLoc.host] + * The window location host defaults to window.location.host + * + * @return {boolean} + * Whether it is a cross domain request or not. + */ + const isCrossOrigin = function (url, winLoc = window.location) { + const urlInfo = parseUrl(url); + + // IE8 protocol relative urls will return ':' for protocol + const srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol; + + // Check if url is for another domain/origin + // IE8 doesn't know location.origin, so we won't rely on it here + const crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host; + return crossOrigin; + }; + + var Url = /*#__PURE__*/Object.freeze({ + __proto__: null, + parseUrl: parseUrl, + getAbsoluteURL: getAbsoluteURL, + getFileExtension: getFileExtension, + isCrossOrigin: isCrossOrigin + }); + + var win; + if (typeof window !== "undefined") { + win = window; + } else if (typeof commonjsGlobal !== "undefined") { + win = commonjsGlobal; + } else if (typeof self !== "undefined") { + win = self; + } else { + win = {}; + } + var window_1 = win; + + var _extends_1 = createCommonjsModule(function (module) { + function _extends() { + module.exports = _extends = Object.assign ? Object.assign.bind() : function (target) { + for (var i = 1; i < arguments.length; i++) { + var source = arguments[i]; + for (var key in source) { + if (Object.prototype.hasOwnProperty.call(source, key)) { + target[key] = source[key]; + } + } + } + return target; + }, module.exports.__esModule = true, module.exports["default"] = module.exports; + return _extends.apply(this, arguments); + } + module.exports = _extends, module.exports.__esModule = true, module.exports["default"] = module.exports; + }); + unwrapExports(_extends_1); + + var isFunction_1 = isFunction; + var toString = Object.prototype.toString; + function isFunction(fn) { + if (!fn) { + return false; + } + var string = toString.call(fn); + return string === '[object Function]' || typeof fn === 'function' && string !== '[object RegExp]' || typeof window !== 'undefined' && ( + // IE8 and below + fn === window.setTimeout || fn === window.alert || fn === window.confirm || fn === window.prompt); + } + + var httpResponseHandler = function httpResponseHandler(callback, decodeResponseBody) { + if (decodeResponseBody === void 0) { + decodeResponseBody = false; + } + return function (err, response, responseBody) { + // if the XHR failed, return that error + if (err) { + callback(err); + return; + } // if the HTTP status code is 4xx or 5xx, the request also failed + + if (response.statusCode >= 400 && response.statusCode <= 599) { + var cause = responseBody; + if (decodeResponseBody) { + if (window_1.TextDecoder) { + var charset = getCharset(response.headers && response.headers['content-type']); + try { + cause = new TextDecoder(charset).decode(responseBody); + } catch (e) {} + } else { + cause = String.fromCharCode.apply(null, new Uint8Array(responseBody)); + } + } + callback({ + cause: cause + }); + return; + } // otherwise, request succeeded + + callback(null, responseBody); + }; + }; + function getCharset(contentTypeHeader) { + if (contentTypeHeader === void 0) { + contentTypeHeader = ''; + } + return contentTypeHeader.toLowerCase().split(';').reduce(function (charset, contentType) { + var _contentType$split = contentType.split('='), + type = _contentType$split[0], + value = _contentType$split[1]; + if (type.trim() === 'charset') { + return value.trim(); + } + return charset; + }, 'utf-8'); + } + var httpHandler = httpResponseHandler; + + createXHR.httpHandler = httpHandler; + /** + * @license + * slighly modified parse-headers 2.0.2 <https://github.com/kesla/parse-headers/> + * Copyright (c) 2014 David Björklund + * Available under the MIT license + * <https://github.com/kesla/parse-headers/blob/master/LICENCE> + */ + + var parseHeaders = function parseHeaders(headers) { + var result = {}; + if (!headers) { + return result; + } + headers.trim().split('\n').forEach(function (row) { + var index = row.indexOf(':'); + var key = row.slice(0, index).trim().toLowerCase(); + var value = row.slice(index + 1).trim(); + if (typeof result[key] === 'undefined') { + result[key] = value; + } else if (Array.isArray(result[key])) { + result[key].push(value); + } else { + result[key] = [result[key], value]; + } + }); + return result; + }; + var lib = createXHR; // Allow use of default import syntax in TypeScript + + var default_1 = createXHR; + createXHR.XMLHttpRequest = window_1.XMLHttpRequest || noop; + createXHR.XDomainRequest = "withCredentials" in new createXHR.XMLHttpRequest() ? createXHR.XMLHttpRequest : window_1.XDomainRequest; + forEachArray(["get", "put", "post", "patch", "head", "delete"], function (method) { + createXHR[method === "delete" ? "del" : method] = function (uri, options, callback) { + options = initParams(uri, options, callback); + options.method = method.toUpperCase(); + return _createXHR(options); + }; + }); + function forEachArray(array, iterator) { + for (var i = 0; i < array.length; i++) { + iterator(array[i]); + } + } + function isEmpty(obj) { + for (var i in obj) { + if (obj.hasOwnProperty(i)) return false; + } + return true; + } + function initParams(uri, options, callback) { + var params = uri; + if (isFunction_1(options)) { + callback = options; + if (typeof uri === "string") { + params = { + uri: uri + }; + } + } else { + params = _extends_1({}, options, { + uri: uri + }); + } + params.callback = callback; + return params; + } + function createXHR(uri, options, callback) { + options = initParams(uri, options, callback); + return _createXHR(options); + } + function _createXHR(options) { + if (typeof options.callback === "undefined") { + throw new Error("callback argument missing"); + } + var called = false; + var callback = function cbOnce(err, response, body) { + if (!called) { + called = true; + options.callback(err, response, body); + } + }; + function readystatechange() { + if (xhr.readyState === 4) { + setTimeout(loadFunc, 0); + } + } + function getBody() { + // Chrome with requestType=blob throws errors arround when even testing access to responseText + var body = undefined; + if (xhr.response) { + body = xhr.response; + } else { + body = xhr.responseText || getXml(xhr); + } + if (isJson) { + try { + body = JSON.parse(body); + } catch (e) {} + } + return body; + } + function errorFunc(evt) { + clearTimeout(timeoutTimer); + if (!(evt instanceof Error)) { + evt = new Error("" + (evt || "Unknown XMLHttpRequest Error")); + } + evt.statusCode = 0; + return callback(evt, failureResponse); + } // will load the data & process the response in a special response object + + function loadFunc() { + if (aborted) return; + var status; + clearTimeout(timeoutTimer); + if (options.useXDR && xhr.status === undefined) { + //IE8 CORS GET successful response doesn't have a status field, but body is fine + status = 200; + } else { + status = xhr.status === 1223 ? 204 : xhr.status; + } + var response = failureResponse; + var err = null; + if (status !== 0) { + response = { + body: getBody(), + statusCode: status, + method: method, + headers: {}, + url: uri, + rawRequest: xhr + }; + if (xhr.getAllResponseHeaders) { + //remember xhr can in fact be XDR for CORS in IE + response.headers = parseHeaders(xhr.getAllResponseHeaders()); + } + } else { + err = new Error("Internal XMLHttpRequest Error"); + } + return callback(err, response, response.body); + } + var xhr = options.xhr || null; + if (!xhr) { + if (options.cors || options.useXDR) { + xhr = new createXHR.XDomainRequest(); + } else { + xhr = new createXHR.XMLHttpRequest(); + } + } + var key; + var aborted; + var uri = xhr.url = options.uri || options.url; + var method = xhr.method = options.method || "GET"; + var body = options.body || options.data; + var headers = xhr.headers = options.headers || {}; + var sync = !!options.sync; + var isJson = false; + var timeoutTimer; + var failureResponse = { + body: undefined, + headers: {}, + statusCode: 0, + method: method, + url: uri, + rawRequest: xhr + }; + if ("json" in options && options.json !== false) { + isJson = true; + headers["accept"] || headers["Accept"] || (headers["Accept"] = "application/json"); //Don't override existing accept header declared by user + + if (method !== "GET" && method !== "HEAD") { + headers["content-type"] || headers["Content-Type"] || (headers["Content-Type"] = "application/json"); //Don't override existing accept header declared by user + + body = JSON.stringify(options.json === true ? body : options.json); + } + } + xhr.onreadystatechange = readystatechange; + xhr.onload = loadFunc; + xhr.onerror = errorFunc; // IE9 must have onprogress be set to a unique function. + + xhr.onprogress = function () {// IE must die + }; + xhr.onabort = function () { + aborted = true; + }; + xhr.ontimeout = errorFunc; + xhr.open(method, uri, !sync, options.username, options.password); //has to be after open + + if (!sync) { + xhr.withCredentials = !!options.withCredentials; + } // Cannot set timeout with sync request + // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly + // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent + + if (!sync && options.timeout > 0) { + timeoutTimer = setTimeout(function () { + if (aborted) return; + aborted = true; //IE9 may still call readystatechange + + xhr.abort("timeout"); + var e = new Error("XMLHttpRequest timeout"); + e.code = "ETIMEDOUT"; + errorFunc(e); + }, options.timeout); + } + if (xhr.setRequestHeader) { + for (key in headers) { + if (headers.hasOwnProperty(key)) { + xhr.setRequestHeader(key, headers[key]); + } + } + } else if (options.headers && !isEmpty(options.headers)) { + throw new Error("Headers cannot be set on an XDomainRequest object"); + } + if ("responseType" in options) { + xhr.responseType = options.responseType; + } + if ("beforeSend" in options && typeof options.beforeSend === "function") { + options.beforeSend(xhr); + } // Microsoft Edge browser sends "undefined" when send is called with undefined value. + // XMLHttpRequest spec says to pass null as body to indicate no body + // See https://github.com/naugtur/xhr/issues/100. + + xhr.send(body || null); + return xhr; + } + function getXml(xhr) { + // xhr.responseXML will throw Exception "InvalidStateError" or "DOMException" + // See https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseXML. + try { + if (xhr.responseType === "document") { + return xhr.responseXML; + } + var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === "parsererror"; + if (xhr.responseType === "" && !firefoxBugTakenEffect) { + return xhr.responseXML; + } + } catch (e) {} + return null; + } + function noop() {} + lib.default = default_1; + + /** + * @file text-track.js + */ + + /** + * Takes a webvtt file contents and parses it into cues + * + * @param {string} srcContent + * webVTT file contents + * + * @param {TextTrack} track + * TextTrack to add cues to. Cues come from the srcContent. + * + * @private + */ + const parseCues = function (srcContent, track) { + const parser = new window.WebVTT.Parser(window, window.vttjs, window.WebVTT.StringDecoder()); + const errors = []; + parser.oncue = function (cue) { + track.addCue(cue); + }; + parser.onparsingerror = function (error) { + errors.push(error); + }; + parser.onflush = function () { + track.trigger({ + type: 'loadeddata', + target: track + }); + }; + parser.parse(srcContent); + if (errors.length > 0) { + if (window.console && window.console.groupCollapsed) { + window.console.groupCollapsed(`Text Track parsing errors for ${track.src}`); + } + errors.forEach(error => log.error(error)); + if (window.console && window.console.groupEnd) { + window.console.groupEnd(); + } + } + parser.flush(); + }; + + /** + * Load a `TextTrack` from a specified url. + * + * @param {string} src + * Url to load track from. + * + * @param {TextTrack} track + * Track to add cues to. Comes from the content at the end of `url`. + * + * @private + */ + const loadTrack = function (src, track) { + const opts = { + uri: src + }; + const crossOrigin = isCrossOrigin(src); + if (crossOrigin) { + opts.cors = crossOrigin; + } + const withCredentials = track.tech_.crossOrigin() === 'use-credentials'; + if (withCredentials) { + opts.withCredentials = withCredentials; + } + lib(opts, bind_(this, function (err, response, responseBody) { + if (err) { + return log.error(err, response); + } + track.loaded_ = true; + + // Make sure that vttjs has loaded, otherwise, wait till it finished loading + // NOTE: this is only used for the alt/video.novtt.js build + if (typeof window.WebVTT !== 'function') { + if (track.tech_) { + // to prevent use before define eslint error, we define loadHandler + // as a let here + track.tech_.any(['vttjsloaded', 'vttjserror'], event => { + if (event.type === 'vttjserror') { + log.error(`vttjs failed to load, stopping trying to process ${track.src}`); + return; + } + return parseCues(responseBody, track); + }); + } + } else { + parseCues(responseBody, track); + } + })); + }; + + /** + * A representation of a single `TextTrack`. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack} + * @extends Track + */ + class TextTrack extends Track { + /** + * Create an instance of this class. + * + * @param {Object} options={} + * Object of option names and values + * + * @param { import('../tech/tech').default } options.tech + * A reference to the tech that owns this TextTrack. + * + * @param {TextTrack~Kind} [options.kind='subtitles'] + * A valid text track kind. + * + * @param {TextTrack~Mode} [options.mode='disabled'] + * A valid text track mode. + * + * @param {string} [options.id='vjs_track_' + Guid.newGUID()] + * A unique id for this TextTrack. + * + * @param {string} [options.label=''] + * The menu label for this track. + * + * @param {string} [options.language=''] + * A valid two character language code. + * + * @param {string} [options.srclang=''] + * A valid two character language code. An alternative, but deprioritized + * version of `options.language` + * + * @param {string} [options.src] + * A url to TextTrack cues. + * + * @param {boolean} [options.default] + * If this track should default to on or off. + */ + constructor(options = {}) { + if (!options.tech) { + throw new Error('A tech was not provided.'); + } + const settings = merge(options, { + kind: TextTrackKind[options.kind] || 'subtitles', + language: options.language || options.srclang || '' + }); + let mode = TextTrackMode[settings.mode] || 'disabled'; + const default_ = settings.default; + if (settings.kind === 'metadata' || settings.kind === 'chapters') { + mode = 'hidden'; + } + super(settings); + this.tech_ = settings.tech; + this.cues_ = []; + this.activeCues_ = []; + this.preload_ = this.tech_.preloadTextTracks !== false; + const cues = new TextTrackCueList(this.cues_); + const activeCues = new TextTrackCueList(this.activeCues_); + let changed = false; + this.timeupdateHandler = bind_(this, function (event = {}) { + if (this.tech_.isDisposed()) { + return; + } + if (!this.tech_.isReady_) { + if (event.type !== 'timeupdate') { + this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler); + } + return; + } + + // Accessing this.activeCues for the side-effects of updating itself + // due to its nature as a getter function. Do not remove or cues will + // stop updating! + // Use the setter to prevent deletion from uglify (pure_getters rule) + this.activeCues = this.activeCues; + if (changed) { + this.trigger('cuechange'); + changed = false; + } + if (event.type !== 'timeupdate') { + this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler); + } + }); + const disposeHandler = () => { + this.stopTracking(); + }; + this.tech_.one('dispose', disposeHandler); + if (mode !== 'disabled') { + this.startTracking(); + } + Object.defineProperties(this, { + /** + * @memberof TextTrack + * @member {boolean} default + * If this track was set to be on or off by default. Cannot be changed after + * creation. + * @instance + * + * @readonly + */ + default: { + get() { + return default_; + }, + set() {} + }, + /** + * @memberof TextTrack + * @member {string} mode + * Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will + * not be set if setting to an invalid mode. + * @instance + * + * @fires TextTrack#modechange + */ + mode: { + get() { + return mode; + }, + set(newMode) { + if (!TextTrackMode[newMode]) { + return; + } + if (mode === newMode) { + return; + } + mode = newMode; + if (!this.preload_ && mode !== 'disabled' && this.cues.length === 0) { + // On-demand load. + loadTrack(this.src, this); + } + this.stopTracking(); + if (mode !== 'disabled') { + this.startTracking(); + } + /** + * An event that fires when mode changes on this track. This allows + * the TextTrackList that holds this track to act accordingly. + * + * > Note: This is not part of the spec! + * + * @event TextTrack#modechange + * @type {Event} + */ + this.trigger('modechange'); + } + }, + /** + * @memberof TextTrack + * @member {TextTrackCueList} cues + * The text track cue list for this TextTrack. + * @instance + */ + cues: { + get() { + if (!this.loaded_) { + return null; + } + return cues; + }, + set() {} + }, + /** + * @memberof TextTrack + * @member {TextTrackCueList} activeCues + * The list text track cues that are currently active for this TextTrack. + * @instance + */ + activeCues: { + get() { + if (!this.loaded_) { + return null; + } + + // nothing to do + if (this.cues.length === 0) { + return activeCues; + } + const ct = this.tech_.currentTime(); + const active = []; + for (let i = 0, l = this.cues.length; i < l; i++) { + const cue = this.cues[i]; + if (cue.startTime <= ct && cue.endTime >= ct) { + active.push(cue); + } + } + changed = false; + if (active.length !== this.activeCues_.length) { + changed = true; + } else { + for (let i = 0; i < active.length; i++) { + if (this.activeCues_.indexOf(active[i]) === -1) { + changed = true; + } + } + } + this.activeCues_ = active; + activeCues.setCues_(this.activeCues_); + return activeCues; + }, + // /!\ Keep this setter empty (see the timeupdate handler above) + set() {} + } + }); + if (settings.src) { + this.src = settings.src; + if (!this.preload_) { + // Tracks will load on-demand. + // Act like we're loaded for other purposes. + this.loaded_ = true; + } + if (this.preload_ || settings.kind !== 'subtitles' && settings.kind !== 'captions') { + loadTrack(this.src, this); + } + } else { + this.loaded_ = true; + } + } + startTracking() { + // More precise cues based on requestVideoFrameCallback with a requestAnimationFram fallback + this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler); + // Also listen to timeupdate in case rVFC/rAF stops (window in background, audio in video el) + this.tech_.on('timeupdate', this.timeupdateHandler); + } + stopTracking() { + if (this.rvf_) { + this.tech_.cancelVideoFrameCallback(this.rvf_); + this.rvf_ = undefined; + } + this.tech_.off('timeupdate', this.timeupdateHandler); + } + + /** + * Add a cue to the internal list of cues. + * + * @param {TextTrack~Cue} cue + * The cue to add to our internal list + */ + addCue(originalCue) { + let cue = originalCue; + + // Testing if the cue is a VTTCue in a way that survives minification + if (!('getCueAsHTML' in cue)) { + cue = new window.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text); + for (const prop in originalCue) { + if (!(prop in cue)) { + cue[prop] = originalCue[prop]; + } + } + + // make sure that `id` is copied over + cue.id = originalCue.id; + cue.originalCue_ = originalCue; + } + const tracks = this.tech_.textTracks(); + for (let i = 0; i < tracks.length; i++) { + if (tracks[i] !== this) { + tracks[i].removeCue(cue); + } + } + this.cues_.push(cue); + this.cues.setCues_(this.cues_); + } + + /** + * Remove a cue from our internal list + * + * @param {TextTrack~Cue} removeCue + * The cue to remove from our internal list + */ + removeCue(removeCue) { + let i = this.cues_.length; + while (i--) { + const cue = this.cues_[i]; + if (cue === removeCue || cue.originalCue_ && cue.originalCue_ === removeCue) { + this.cues_.splice(i, 1); + this.cues.setCues_(this.cues_); + break; + } + } + } + } + + /** + * cuechange - One or more cues in the track have become active or stopped being active. + * @protected + */ + TextTrack.prototype.allowedEvents_ = { + cuechange: 'cuechange' + }; + + /** + * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList} + * only one `AudioTrack` in the list will be enabled at a time. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack} + * @extends Track + */ + class AudioTrack extends Track { + /** + * Create an instance of this class. + * + * @param {Object} [options={}] + * Object of option names and values + * + * @param {AudioTrack~Kind} [options.kind=''] + * A valid audio track kind + * + * @param {string} [options.id='vjs_track_' + Guid.newGUID()] + * A unique id for this AudioTrack. + * + * @param {string} [options.label=''] + * The menu label for this track. + * + * @param {string} [options.language=''] + * A valid two character language code. + * + * @param {boolean} [options.enabled] + * If this track is the one that is currently playing. If this track is part of + * an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled. + */ + constructor(options = {}) { + const settings = merge(options, { + kind: AudioTrackKind[options.kind] || '' + }); + super(settings); + let enabled = false; + + /** + * @memberof AudioTrack + * @member {boolean} enabled + * If this `AudioTrack` is enabled or not. When setting this will + * fire {@link AudioTrack#enabledchange} if the state of enabled is changed. + * @instance + * + * @fires VideoTrack#selectedchange + */ + Object.defineProperty(this, 'enabled', { + get() { + return enabled; + }, + set(newEnabled) { + // an invalid or unchanged value + if (typeof newEnabled !== 'boolean' || newEnabled === enabled) { + return; + } + enabled = newEnabled; + + /** + * An event that fires when enabled changes on this track. This allows + * the AudioTrackList that holds this track to act accordingly. + * + * > Note: This is not part of the spec! Native tracks will do + * this internally without an event. + * + * @event AudioTrack#enabledchange + * @type {Event} + */ + this.trigger('enabledchange'); + } + }); + + // if the user sets this track to selected then + // set selected to that true value otherwise + // we keep it false + if (settings.enabled) { + this.enabled = settings.enabled; + } + this.loaded_ = true; + } + } + + /** + * A representation of a single `VideoTrack`. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack} + * @extends Track + */ + class VideoTrack extends Track { + /** + * Create an instance of this class. + * + * @param {Object} [options={}] + * Object of option names and values + * + * @param {string} [options.kind=''] + * A valid {@link VideoTrack~Kind} + * + * @param {string} [options.id='vjs_track_' + Guid.newGUID()] + * A unique id for this AudioTrack. + * + * @param {string} [options.label=''] + * The menu label for this track. + * + * @param {string} [options.language=''] + * A valid two character language code. + * + * @param {boolean} [options.selected] + * If this track is the one that is currently playing. + */ + constructor(options = {}) { + const settings = merge(options, { + kind: VideoTrackKind[options.kind] || '' + }); + super(settings); + let selected = false; + + /** + * @memberof VideoTrack + * @member {boolean} selected + * If this `VideoTrack` is selected or not. When setting this will + * fire {@link VideoTrack#selectedchange} if the state of selected changed. + * @instance + * + * @fires VideoTrack#selectedchange + */ + Object.defineProperty(this, 'selected', { + get() { + return selected; + }, + set(newSelected) { + // an invalid or unchanged value + if (typeof newSelected !== 'boolean' || newSelected === selected) { + return; + } + selected = newSelected; + + /** + * An event that fires when selected changes on this track. This allows + * the VideoTrackList that holds this track to act accordingly. + * + * > Note: This is not part of the spec! Native tracks will do + * this internally without an event. + * + * @event VideoTrack#selectedchange + * @type {Event} + */ + this.trigger('selectedchange'); + } + }); + + // if the user sets this track to selected then + // set selected to that true value otherwise + // we keep it false + if (settings.selected) { + this.selected = settings.selected; + } + } + } + + /** + * @file html-track-element.js + */ + + /** + * A single track represented in the DOM. + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement} + * @extends EventTarget + */ + class HTMLTrackElement extends EventTarget { + /** + * Create an instance of this class. + * + * @param {Object} options={} + * Object of option names and values + * + * @param { import('../tech/tech').default } options.tech + * A reference to the tech that owns this HTMLTrackElement. + * + * @param {TextTrack~Kind} [options.kind='subtitles'] + * A valid text track kind. + * + * @param {TextTrack~Mode} [options.mode='disabled'] + * A valid text track mode. + * + * @param {string} [options.id='vjs_track_' + Guid.newGUID()] + * A unique id for this TextTrack. + * + * @param {string} [options.label=''] + * The menu label for this track. + * + * @param {string} [options.language=''] + * A valid two character language code. + * + * @param {string} [options.srclang=''] + * A valid two character language code. An alternative, but deprioritized + * version of `options.language` + * + * @param {string} [options.src] + * A url to TextTrack cues. + * + * @param {boolean} [options.default] + * If this track should default to on or off. + */ + constructor(options = {}) { + super(); + let readyState; + const track = new TextTrack(options); + this.kind = track.kind; + this.src = track.src; + this.srclang = track.language; + this.label = track.label; + this.default = track.default; + Object.defineProperties(this, { + /** + * @memberof HTMLTrackElement + * @member {HTMLTrackElement~ReadyState} readyState + * The current ready state of the track element. + * @instance + */ + readyState: { + get() { + return readyState; + } + }, + /** + * @memberof HTMLTrackElement + * @member {TextTrack} track + * The underlying TextTrack object. + * @instance + * + */ + track: { + get() { + return track; + } + } + }); + readyState = HTMLTrackElement.NONE; + + /** + * @listens TextTrack#loadeddata + * @fires HTMLTrackElement#load + */ + track.addEventListener('loadeddata', () => { + readyState = HTMLTrackElement.LOADED; + this.trigger({ + type: 'load', + target: this + }); + }); + } + } + + /** + * @protected + */ + HTMLTrackElement.prototype.allowedEvents_ = { + load: 'load' + }; + + /** + * The text track not loaded state. + * + * @type {number} + * @static + */ + HTMLTrackElement.NONE = 0; + + /** + * The text track loading state. + * + * @type {number} + * @static + */ + HTMLTrackElement.LOADING = 1; + + /** + * The text track loaded state. + * + * @type {number} + * @static + */ + HTMLTrackElement.LOADED = 2; + + /** + * The text track failed to load state. + * + * @type {number} + * @static + */ + HTMLTrackElement.ERROR = 3; + + /* + * This file contains all track properties that are used in + * player.js, tech.js, html5.js and possibly other techs in the future. + */ + + const NORMAL = { + audio: { + ListClass: AudioTrackList, + TrackClass: AudioTrack, + capitalName: 'Audio' + }, + video: { + ListClass: VideoTrackList, + TrackClass: VideoTrack, + capitalName: 'Video' + }, + text: { + ListClass: TextTrackList, + TrackClass: TextTrack, + capitalName: 'Text' + } + }; + Object.keys(NORMAL).forEach(function (type) { + NORMAL[type].getterName = `${type}Tracks`; + NORMAL[type].privateName = `${type}Tracks_`; + }); + const REMOTE = { + remoteText: { + ListClass: TextTrackList, + TrackClass: TextTrack, + capitalName: 'RemoteText', + getterName: 'remoteTextTracks', + privateName: 'remoteTextTracks_' + }, + remoteTextEl: { + ListClass: HtmlTrackElementList, + TrackClass: HTMLTrackElement, + capitalName: 'RemoteTextTrackEls', + getterName: 'remoteTextTrackEls', + privateName: 'remoteTextTrackEls_' + } + }; + const ALL = Object.assign({}, NORMAL, REMOTE); + REMOTE.names = Object.keys(REMOTE); + NORMAL.names = Object.keys(NORMAL); + ALL.names = [].concat(REMOTE.names).concat(NORMAL.names); + + var minDoc = {}; + + var topLevel = typeof commonjsGlobal !== 'undefined' ? commonjsGlobal : typeof window !== 'undefined' ? window : {}; + var doccy; + if (typeof document !== 'undefined') { + doccy = document; + } else { + doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4']; + if (!doccy) { + doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc; + } + } + var document_1 = doccy; + + /** + * Copyright 2013 vtt.js Contributors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ + /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ + + var _objCreate = Object.create || function () { + function F() {} + return function (o) { + if (arguments.length !== 1) { + throw new Error('Object.create shim only accepts one parameter.'); + } + F.prototype = o; + return new F(); + }; + }(); + + // Creates a new ParserError object from an errorData object. The errorData + // object should have default code and message properties. The default message + // property can be overriden by passing in a message parameter. + // See ParsingError.Errors below for acceptable errors. + function ParsingError(errorData, message) { + this.name = "ParsingError"; + this.code = errorData.code; + this.message = message || errorData.message; + } + ParsingError.prototype = _objCreate(Error.prototype); + ParsingError.prototype.constructor = ParsingError; + + // ParsingError metadata for acceptable ParsingErrors. + ParsingError.Errors = { + BadSignature: { + code: 0, + message: "Malformed WebVTT signature." + }, + BadTimeStamp: { + code: 1, + message: "Malformed time stamp." + } + }; + + // Try to parse input as a time stamp. + function parseTimeStamp(input) { + function computeSeconds(h, m, s, f) { + return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000; + } + var m = input.match(/^(\d+):(\d{1,2})(:\d{1,2})?\.(\d{3})/); + if (!m) { + return null; + } + if (m[3]) { + // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds] + return computeSeconds(m[1], m[2], m[3].replace(":", ""), m[4]); + } else if (m[1] > 59) { + // Timestamp takes the form of [hours]:[minutes].[milliseconds] + // First position is hours as it's over 59. + return computeSeconds(m[1], m[2], 0, m[4]); + } else { + // Timestamp takes the form of [minutes]:[seconds].[milliseconds] + return computeSeconds(0, m[1], m[2], m[4]); + } + } + + // A settings object holds key/value pairs and will ignore anything but the first + // assignment to a specific key. + function Settings() { + this.values = _objCreate(null); + } + Settings.prototype = { + // Only accept the first assignment to any key. + set: function (k, v) { + if (!this.get(k) && v !== "") { + this.values[k] = v; + } + }, + // Return the value for a key, or a default value. + // If 'defaultKey' is passed then 'dflt' is assumed to be an object with + // a number of possible default values as properties where 'defaultKey' is + // the key of the property that will be chosen; otherwise it's assumed to be + // a single value. + get: function (k, dflt, defaultKey) { + if (defaultKey) { + return this.has(k) ? this.values[k] : dflt[defaultKey]; + } + return this.has(k) ? this.values[k] : dflt; + }, + // Check whether we have a value for a key. + has: function (k) { + return k in this.values; + }, + // Accept a setting if its one of the given alternatives. + alt: function (k, v, a) { + for (var n = 0; n < a.length; ++n) { + if (v === a[n]) { + this.set(k, v); + break; + } + } + }, + // Accept a setting if its a valid (signed) integer. + integer: function (k, v) { + if (/^-?\d+$/.test(v)) { + // integer + this.set(k, parseInt(v, 10)); + } + }, + // Accept a setting if its a valid percentage. + percent: function (k, v) { + if (v.match(/^([\d]{1,3})(\.[\d]*)?%$/)) { + v = parseFloat(v); + if (v >= 0 && v <= 100) { + this.set(k, v); + return true; + } + } + return false; + } + }; + + // Helper function to parse input into groups separated by 'groupDelim', and + // interprete each group as a key/value pair separated by 'keyValueDelim'. + function parseOptions(input, callback, keyValueDelim, groupDelim) { + var groups = groupDelim ? input.split(groupDelim) : [input]; + for (var i in groups) { + if (typeof groups[i] !== "string") { + continue; + } + var kv = groups[i].split(keyValueDelim); + if (kv.length !== 2) { + continue; + } + var k = kv[0].trim(); + var v = kv[1].trim(); + callback(k, v); + } + } + function parseCue(input, cue, regionList) { + // Remember the original input if we need to throw an error. + var oInput = input; + // 4.1 WebVTT timestamp + function consumeTimeStamp() { + var ts = parseTimeStamp(input); + if (ts === null) { + throw new ParsingError(ParsingError.Errors.BadTimeStamp, "Malformed timestamp: " + oInput); + } + // Remove time stamp from input. + input = input.replace(/^[^\sa-zA-Z-]+/, ""); + return ts; + } + + // 4.4.2 WebVTT cue settings + function consumeCueSettings(input, cue) { + var settings = new Settings(); + parseOptions(input, function (k, v) { + switch (k) { + case "region": + // Find the last region we parsed with the same region id. + for (var i = regionList.length - 1; i >= 0; i--) { + if (regionList[i].id === v) { + settings.set(k, regionList[i].region); + break; + } + } + break; + case "vertical": + settings.alt(k, v, ["rl", "lr"]); + break; + case "line": + var vals = v.split(","), + vals0 = vals[0]; + settings.integer(k, vals0); + settings.percent(k, vals0) ? settings.set("snapToLines", false) : null; + settings.alt(k, vals0, ["auto"]); + if (vals.length === 2) { + settings.alt("lineAlign", vals[1], ["start", "center", "end"]); + } + break; + case "position": + vals = v.split(","); + settings.percent(k, vals[0]); + if (vals.length === 2) { + settings.alt("positionAlign", vals[1], ["start", "center", "end"]); + } + break; + case "size": + settings.percent(k, v); + break; + case "align": + settings.alt(k, v, ["start", "center", "end", "left", "right"]); + break; + } + }, /:/, /\s/); + + // Apply default values for any missing fields. + cue.region = settings.get("region", null); + cue.vertical = settings.get("vertical", ""); + try { + cue.line = settings.get("line", "auto"); + } catch (e) {} + cue.lineAlign = settings.get("lineAlign", "start"); + cue.snapToLines = settings.get("snapToLines", true); + cue.size = settings.get("size", 100); + // Safari still uses the old middle value and won't accept center + try { + cue.align = settings.get("align", "center"); + } catch (e) { + cue.align = settings.get("align", "middle"); + } + try { + cue.position = settings.get("position", "auto"); + } catch (e) { + cue.position = settings.get("position", { + start: 0, + left: 0, + center: 50, + middle: 50, + end: 100, + right: 100 + }, cue.align); + } + cue.positionAlign = settings.get("positionAlign", { + start: "start", + left: "start", + center: "center", + middle: "center", + end: "end", + right: "end" + }, cue.align); + } + function skipWhitespace() { + input = input.replace(/^\s+/, ""); + } + + // 4.1 WebVTT cue timings. + skipWhitespace(); + cue.startTime = consumeTimeStamp(); // (1) collect cue start time + skipWhitespace(); + if (input.substr(0, 3) !== "-->") { + // (3) next characters must match "-->" + throw new ParsingError(ParsingError.Errors.BadTimeStamp, "Malformed time stamp (time stamps must be separated by '-->'): " + oInput); + } + input = input.substr(3); + skipWhitespace(); + cue.endTime = consumeTimeStamp(); // (5) collect cue end time + + // 4.1 WebVTT cue settings list. + skipWhitespace(); + consumeCueSettings(input, cue); + } + + // When evaluating this file as part of a Webpack bundle for server + // side rendering, `document` is an empty object. + var TEXTAREA_ELEMENT = document_1.createElement && document_1.createElement("textarea"); + var TAG_NAME = { + c: "span", + i: "i", + b: "b", + u: "u", + ruby: "ruby", + rt: "rt", + v: "span", + lang: "span" + }; + + // 5.1 default text color + // 5.2 default text background color is equivalent to text color with bg_ prefix + var DEFAULT_COLOR_CLASS = { + white: 'rgba(255,255,255,1)', + lime: 'rgba(0,255,0,1)', + cyan: 'rgba(0,255,255,1)', + red: 'rgba(255,0,0,1)', + yellow: 'rgba(255,255,0,1)', + magenta: 'rgba(255,0,255,1)', + blue: 'rgba(0,0,255,1)', + black: 'rgba(0,0,0,1)' + }; + var TAG_ANNOTATION = { + v: "title", + lang: "lang" + }; + var NEEDS_PARENT = { + rt: "ruby" + }; + + // Parse content into a document fragment. + function parseContent(window, input) { + function nextToken() { + // Check for end-of-string. + if (!input) { + return null; + } + + // Consume 'n' characters from the input. + function consume(result) { + input = input.substr(result.length); + return result; + } + var m = input.match(/^([^<]*)(<[^>]*>?)?/); + // If there is some text before the next tag, return it, otherwise return + // the tag. + return consume(m[1] ? m[1] : m[2]); + } + function unescape(s) { + TEXTAREA_ELEMENT.innerHTML = s; + s = TEXTAREA_ELEMENT.textContent; + TEXTAREA_ELEMENT.textContent = ""; + return s; + } + function shouldAdd(current, element) { + return !NEEDS_PARENT[element.localName] || NEEDS_PARENT[element.localName] === current.localName; + } + + // Create an element for this tag. + function createElement(type, annotation) { + var tagName = TAG_NAME[type]; + if (!tagName) { + return null; + } + var element = window.document.createElement(tagName); + var name = TAG_ANNOTATION[type]; + if (name && annotation) { + element[name] = annotation.trim(); + } + return element; + } + var rootDiv = window.document.createElement("div"), + current = rootDiv, + t, + tagStack = []; + while ((t = nextToken()) !== null) { + if (t[0] === '<') { + if (t[1] === "/") { + // If the closing tag matches, move back up to the parent node. + if (tagStack.length && tagStack[tagStack.length - 1] === t.substr(2).replace(">", "")) { + tagStack.pop(); + current = current.parentNode; + } + // Otherwise just ignore the end tag. + continue; + } + var ts = parseTimeStamp(t.substr(1, t.length - 2)); + var node; + if (ts) { + // Timestamps are lead nodes as well. + node = window.document.createProcessingInstruction("timestamp", ts); + current.appendChild(node); + continue; + } + var m = t.match(/^<([^.\s/0-9>]+)(\.[^\s\\>]+)?([^>\\]+)?(\\?)>?$/); + // If we can't parse the tag, skip to the next tag. + if (!m) { + continue; + } + // Try to construct an element, and ignore the tag if we couldn't. + node = createElement(m[1], m[3]); + if (!node) { + continue; + } + // Determine if the tag should be added based on the context of where it + // is placed in the cuetext. + if (!shouldAdd(current, node)) { + continue; + } + // Set the class list (as a list of classes, separated by space). + if (m[2]) { + var classes = m[2].split('.'); + classes.forEach(function (cl) { + var bgColor = /^bg_/.test(cl); + // slice out `bg_` if it's a background color + var colorName = bgColor ? cl.slice(3) : cl; + if (DEFAULT_COLOR_CLASS.hasOwnProperty(colorName)) { + var propName = bgColor ? 'background-color' : 'color'; + var propValue = DEFAULT_COLOR_CLASS[colorName]; + node.style[propName] = propValue; + } + }); + node.className = classes.join(' '); + } + // Append the node to the current node, and enter the scope of the new + // node. + tagStack.push(m[1]); + current.appendChild(node); + current = node; + continue; + } + + // Text nodes are leaf nodes. + current.appendChild(window.document.createTextNode(unescape(t))); + } + return rootDiv; + } + + // This is a list of all the Unicode characters that have a strong + // right-to-left category. What this means is that these characters are + // written right-to-left for sure. It was generated by pulling all the strong + // right-to-left characters out of the Unicode data table. That table can + // found at: http://www.unicode.org/Public/UNIDATA/UnicodeData.txt + var strongRTLRanges = [[0x5be, 0x5be], [0x5c0, 0x5c0], [0x5c3, 0x5c3], [0x5c6, 0x5c6], [0x5d0, 0x5ea], [0x5f0, 0x5f4], [0x608, 0x608], [0x60b, 0x60b], [0x60d, 0x60d], [0x61b, 0x61b], [0x61e, 0x64a], [0x66d, 0x66f], [0x671, 0x6d5], [0x6e5, 0x6e6], [0x6ee, 0x6ef], [0x6fa, 0x70d], [0x70f, 0x710], [0x712, 0x72f], [0x74d, 0x7a5], [0x7b1, 0x7b1], [0x7c0, 0x7ea], [0x7f4, 0x7f5], [0x7fa, 0x7fa], [0x800, 0x815], [0x81a, 0x81a], [0x824, 0x824], [0x828, 0x828], [0x830, 0x83e], [0x840, 0x858], [0x85e, 0x85e], [0x8a0, 0x8a0], [0x8a2, 0x8ac], [0x200f, 0x200f], [0xfb1d, 0xfb1d], [0xfb1f, 0xfb28], [0xfb2a, 0xfb36], [0xfb38, 0xfb3c], [0xfb3e, 0xfb3e], [0xfb40, 0xfb41], [0xfb43, 0xfb44], [0xfb46, 0xfbc1], [0xfbd3, 0xfd3d], [0xfd50, 0xfd8f], [0xfd92, 0xfdc7], [0xfdf0, 0xfdfc], [0xfe70, 0xfe74], [0xfe76, 0xfefc], [0x10800, 0x10805], [0x10808, 0x10808], [0x1080a, 0x10835], [0x10837, 0x10838], [0x1083c, 0x1083c], [0x1083f, 0x10855], [0x10857, 0x1085f], [0x10900, 0x1091b], [0x10920, 0x10939], [0x1093f, 0x1093f], [0x10980, 0x109b7], [0x109be, 0x109bf], [0x10a00, 0x10a00], [0x10a10, 0x10a13], [0x10a15, 0x10a17], [0x10a19, 0x10a33], [0x10a40, 0x10a47], [0x10a50, 0x10a58], [0x10a60, 0x10a7f], [0x10b00, 0x10b35], [0x10b40, 0x10b55], [0x10b58, 0x10b72], [0x10b78, 0x10b7f], [0x10c00, 0x10c48], [0x1ee00, 0x1ee03], [0x1ee05, 0x1ee1f], [0x1ee21, 0x1ee22], [0x1ee24, 0x1ee24], [0x1ee27, 0x1ee27], [0x1ee29, 0x1ee32], [0x1ee34, 0x1ee37], [0x1ee39, 0x1ee39], [0x1ee3b, 0x1ee3b], [0x1ee42, 0x1ee42], [0x1ee47, 0x1ee47], [0x1ee49, 0x1ee49], [0x1ee4b, 0x1ee4b], [0x1ee4d, 0x1ee4f], [0x1ee51, 0x1ee52], [0x1ee54, 0x1ee54], [0x1ee57, 0x1ee57], [0x1ee59, 0x1ee59], [0x1ee5b, 0x1ee5b], [0x1ee5d, 0x1ee5d], [0x1ee5f, 0x1ee5f], [0x1ee61, 0x1ee62], [0x1ee64, 0x1ee64], [0x1ee67, 0x1ee6a], [0x1ee6c, 0x1ee72], [0x1ee74, 0x1ee77], [0x1ee79, 0x1ee7c], [0x1ee7e, 0x1ee7e], [0x1ee80, 0x1ee89], [0x1ee8b, 0x1ee9b], [0x1eea1, 0x1eea3], [0x1eea5, 0x1eea9], [0x1eeab, 0x1eebb], [0x10fffd, 0x10fffd]]; + function isStrongRTLChar(charCode) { + for (var i = 0; i < strongRTLRanges.length; i++) { + var currentRange = strongRTLRanges[i]; + if (charCode >= currentRange[0] && charCode <= currentRange[1]) { + return true; + } + } + return false; + } + function determineBidi(cueDiv) { + var nodeStack = [], + text = "", + charCode; + if (!cueDiv || !cueDiv.childNodes) { + return "ltr"; + } + function pushNodes(nodeStack, node) { + for (var i = node.childNodes.length - 1; i >= 0; i--) { + nodeStack.push(node.childNodes[i]); + } + } + function nextTextNode(nodeStack) { + if (!nodeStack || !nodeStack.length) { + return null; + } + var node = nodeStack.pop(), + text = node.textContent || node.innerText; + if (text) { + // TODO: This should match all unicode type B characters (paragraph + // separator characters). See issue #115. + var m = text.match(/^.*(\n|\r)/); + if (m) { + nodeStack.length = 0; + return m[0]; + } + return text; + } + if (node.tagName === "ruby") { + return nextTextNode(nodeStack); + } + if (node.childNodes) { + pushNodes(nodeStack, node); + return nextTextNode(nodeStack); + } + } + pushNodes(nodeStack, cueDiv); + while (text = nextTextNode(nodeStack)) { + for (var i = 0; i < text.length; i++) { + charCode = text.charCodeAt(i); + if (isStrongRTLChar(charCode)) { + return "rtl"; + } + } + } + return "ltr"; + } + function computeLinePos(cue) { + if (typeof cue.line === "number" && (cue.snapToLines || cue.line >= 0 && cue.line <= 100)) { + return cue.line; + } + if (!cue.track || !cue.track.textTrackList || !cue.track.textTrackList.mediaElement) { + return -1; + } + var track = cue.track, + trackList = track.textTrackList, + count = 0; + for (var i = 0; i < trackList.length && trackList[i] !== track; i++) { + if (trackList[i].mode === "showing") { + count++; + } + } + return ++count * -1; + } + function StyleBox() {} + + // Apply styles to a div. If there is no div passed then it defaults to the + // div on 'this'. + StyleBox.prototype.applyStyles = function (styles, div) { + div = div || this.div; + for (var prop in styles) { + if (styles.hasOwnProperty(prop)) { + div.style[prop] = styles[prop]; + } + } + }; + StyleBox.prototype.formatStyle = function (val, unit) { + return val === 0 ? 0 : val + unit; + }; + + // Constructs the computed display state of the cue (a div). Places the div + // into the overlay which should be a block level element (usually a div). + function CueStyleBox(window, cue, styleOptions) { + StyleBox.call(this); + this.cue = cue; + + // Parse our cue's text into a DOM tree rooted at 'cueDiv'. This div will + // have inline positioning and will function as the cue background box. + this.cueDiv = parseContent(window, cue.text); + var styles = { + color: "rgba(255, 255, 255, 1)", + backgroundColor: "rgba(0, 0, 0, 0.8)", + position: "relative", + left: 0, + right: 0, + top: 0, + bottom: 0, + display: "inline", + writingMode: cue.vertical === "" ? "horizontal-tb" : cue.vertical === "lr" ? "vertical-lr" : "vertical-rl", + unicodeBidi: "plaintext" + }; + this.applyStyles(styles, this.cueDiv); + + // Create an absolutely positioned div that will be used to position the cue + // div. Note, all WebVTT cue-setting alignments are equivalent to the CSS + // mirrors of them except middle instead of center on Safari. + this.div = window.document.createElement("div"); + styles = { + direction: determineBidi(this.cueDiv), + writingMode: cue.vertical === "" ? "horizontal-tb" : cue.vertical === "lr" ? "vertical-lr" : "vertical-rl", + unicodeBidi: "plaintext", + textAlign: cue.align === "middle" ? "center" : cue.align, + font: styleOptions.font, + whiteSpace: "pre-line", + position: "absolute" + }; + this.applyStyles(styles); + this.div.appendChild(this.cueDiv); + + // Calculate the distance from the reference edge of the viewport to the text + // position of the cue box. The reference edge will be resolved later when + // the box orientation styles are applied. + var textPos = 0; + switch (cue.positionAlign) { + case "start": + case "line-left": + textPos = cue.position; + break; + case "center": + textPos = cue.position - cue.size / 2; + break; + case "end": + case "line-right": + textPos = cue.position - cue.size; + break; + } + + // Horizontal box orientation; textPos is the distance from the left edge of the + // area to the left edge of the box and cue.size is the distance extending to + // the right from there. + if (cue.vertical === "") { + this.applyStyles({ + left: this.formatStyle(textPos, "%"), + width: this.formatStyle(cue.size, "%") + }); + // Vertical box orientation; textPos is the distance from the top edge of the + // area to the top edge of the box and cue.size is the height extending + // downwards from there. + } else { + this.applyStyles({ + top: this.formatStyle(textPos, "%"), + height: this.formatStyle(cue.size, "%") + }); + } + this.move = function (box) { + this.applyStyles({ + top: this.formatStyle(box.top, "px"), + bottom: this.formatStyle(box.bottom, "px"), + left: this.formatStyle(box.left, "px"), + right: this.formatStyle(box.right, "px"), + height: this.formatStyle(box.height, "px"), + width: this.formatStyle(box.width, "px") + }); + }; + } + CueStyleBox.prototype = _objCreate(StyleBox.prototype); + CueStyleBox.prototype.constructor = CueStyleBox; + + // Represents the co-ordinates of an Element in a way that we can easily + // compute things with such as if it overlaps or intersects with another Element. + // Can initialize it with either a StyleBox or another BoxPosition. + function BoxPosition(obj) { + // Either a BoxPosition was passed in and we need to copy it, or a StyleBox + // was passed in and we need to copy the results of 'getBoundingClientRect' + // as the object returned is readonly. All co-ordinate values are in reference + // to the viewport origin (top left). + var lh, height, width, top; + if (obj.div) { + height = obj.div.offsetHeight; + width = obj.div.offsetWidth; + top = obj.div.offsetTop; + var rects = (rects = obj.div.childNodes) && (rects = rects[0]) && rects.getClientRects && rects.getClientRects(); + obj = obj.div.getBoundingClientRect(); + // In certain cases the outter div will be slightly larger then the sum of + // the inner div's lines. This could be due to bold text, etc, on some platforms. + // In this case we should get the average line height and use that. This will + // result in the desired behaviour. + lh = rects ? Math.max(rects[0] && rects[0].height || 0, obj.height / rects.length) : 0; + } + this.left = obj.left; + this.right = obj.right; + this.top = obj.top || top; + this.height = obj.height || height; + this.bottom = obj.bottom || top + (obj.height || height); + this.width = obj.width || width; + this.lineHeight = lh !== undefined ? lh : obj.lineHeight; + } + + // Move the box along a particular axis. Optionally pass in an amount to move + // the box. If no amount is passed then the default is the line height of the + // box. + BoxPosition.prototype.move = function (axis, toMove) { + toMove = toMove !== undefined ? toMove : this.lineHeight; + switch (axis) { + case "+x": + this.left += toMove; + this.right += toMove; + break; + case "-x": + this.left -= toMove; + this.right -= toMove; + break; + case "+y": + this.top += toMove; + this.bottom += toMove; + break; + case "-y": + this.top -= toMove; + this.bottom -= toMove; + break; + } + }; + + // Check if this box overlaps another box, b2. + BoxPosition.prototype.overlaps = function (b2) { + return this.left < b2.right && this.right > b2.left && this.top < b2.bottom && this.bottom > b2.top; + }; + + // Check if this box overlaps any other boxes in boxes. + BoxPosition.prototype.overlapsAny = function (boxes) { + for (var i = 0; i < boxes.length; i++) { + if (this.overlaps(boxes[i])) { + return true; + } + } + return false; + }; + + // Check if this box is within another box. + BoxPosition.prototype.within = function (container) { + return this.top >= container.top && this.bottom <= container.bottom && this.left >= container.left && this.right <= container.right; + }; + + // Check if this box is entirely within the container or it is overlapping + // on the edge opposite of the axis direction passed. For example, if "+x" is + // passed and the box is overlapping on the left edge of the container, then + // return true. + BoxPosition.prototype.overlapsOppositeAxis = function (container, axis) { + switch (axis) { + case "+x": + return this.left < container.left; + case "-x": + return this.right > container.right; + case "+y": + return this.top < container.top; + case "-y": + return this.bottom > container.bottom; + } + }; + + // Find the percentage of the area that this box is overlapping with another + // box. + BoxPosition.prototype.intersectPercentage = function (b2) { + var x = Math.max(0, Math.min(this.right, b2.right) - Math.max(this.left, b2.left)), + y = Math.max(0, Math.min(this.bottom, b2.bottom) - Math.max(this.top, b2.top)), + intersectArea = x * y; + return intersectArea / (this.height * this.width); + }; + + // Convert the positions from this box to CSS compatible positions using + // the reference container's positions. This has to be done because this + // box's positions are in reference to the viewport origin, whereas, CSS + // values are in referecne to their respective edges. + BoxPosition.prototype.toCSSCompatValues = function (reference) { + return { + top: this.top - reference.top, + bottom: reference.bottom - this.bottom, + left: this.left - reference.left, + right: reference.right - this.right, + height: this.height, + width: this.width + }; + }; + + // Get an object that represents the box's position without anything extra. + // Can pass a StyleBox, HTMLElement, or another BoxPositon. + BoxPosition.getSimpleBoxPosition = function (obj) { + var height = obj.div ? obj.div.offsetHeight : obj.tagName ? obj.offsetHeight : 0; + var width = obj.div ? obj.div.offsetWidth : obj.tagName ? obj.offsetWidth : 0; + var top = obj.div ? obj.div.offsetTop : obj.tagName ? obj.offsetTop : 0; + obj = obj.div ? obj.div.getBoundingClientRect() : obj.tagName ? obj.getBoundingClientRect() : obj; + var ret = { + left: obj.left, + right: obj.right, + top: obj.top || top, + height: obj.height || height, + bottom: obj.bottom || top + (obj.height || height), + width: obj.width || width + }; + return ret; + }; + + // Move a StyleBox to its specified, or next best, position. The containerBox + // is the box that contains the StyleBox, such as a div. boxPositions are + // a list of other boxes that the styleBox can't overlap with. + function moveBoxToLinePosition(window, styleBox, containerBox, boxPositions) { + // Find the best position for a cue box, b, on the video. The axis parameter + // is a list of axis, the order of which, it will move the box along. For example: + // Passing ["+x", "-x"] will move the box first along the x axis in the positive + // direction. If it doesn't find a good position for it there it will then move + // it along the x axis in the negative direction. + function findBestPosition(b, axis) { + var bestPosition, + specifiedPosition = new BoxPosition(b), + percentage = 1; // Highest possible so the first thing we get is better. + + for (var i = 0; i < axis.length; i++) { + while (b.overlapsOppositeAxis(containerBox, axis[i]) || b.within(containerBox) && b.overlapsAny(boxPositions)) { + b.move(axis[i]); + } + // We found a spot where we aren't overlapping anything. This is our + // best position. + if (b.within(containerBox)) { + return b; + } + var p = b.intersectPercentage(containerBox); + // If we're outside the container box less then we were on our last try + // then remember this position as the best position. + if (percentage > p) { + bestPosition = new BoxPosition(b); + percentage = p; + } + // Reset the box position to the specified position. + b = new BoxPosition(specifiedPosition); + } + return bestPosition || specifiedPosition; + } + var boxPosition = new BoxPosition(styleBox), + cue = styleBox.cue, + linePos = computeLinePos(cue), + axis = []; + + // If we have a line number to align the cue to. + if (cue.snapToLines) { + var size; + switch (cue.vertical) { + case "": + axis = ["+y", "-y"]; + size = "height"; + break; + case "rl": + axis = ["+x", "-x"]; + size = "width"; + break; + case "lr": + axis = ["-x", "+x"]; + size = "width"; + break; + } + var step = boxPosition.lineHeight, + position = step * Math.round(linePos), + maxPosition = containerBox[size] + step, + initialAxis = axis[0]; + + // If the specified intial position is greater then the max position then + // clamp the box to the amount of steps it would take for the box to + // reach the max position. + if (Math.abs(position) > maxPosition) { + position = position < 0 ? -1 : 1; + position *= Math.ceil(maxPosition / step) * step; + } + + // If computed line position returns negative then line numbers are + // relative to the bottom of the video instead of the top. Therefore, we + // need to increase our initial position by the length or width of the + // video, depending on the writing direction, and reverse our axis directions. + if (linePos < 0) { + position += cue.vertical === "" ? containerBox.height : containerBox.width; + axis = axis.reverse(); + } + + // Move the box to the specified position. This may not be its best + // position. + boxPosition.move(initialAxis, position); + } else { + // If we have a percentage line value for the cue. + var calculatedPercentage = boxPosition.lineHeight / containerBox.height * 100; + switch (cue.lineAlign) { + case "center": + linePos -= calculatedPercentage / 2; + break; + case "end": + linePos -= calculatedPercentage; + break; + } + + // Apply initial line position to the cue box. + switch (cue.vertical) { + case "": + styleBox.applyStyles({ + top: styleBox.formatStyle(linePos, "%") + }); + break; + case "rl": + styleBox.applyStyles({ + left: styleBox.formatStyle(linePos, "%") + }); + break; + case "lr": + styleBox.applyStyles({ + right: styleBox.formatStyle(linePos, "%") + }); + break; + } + axis = ["+y", "-x", "+x", "-y"]; + + // Get the box position again after we've applied the specified positioning + // to it. + boxPosition = new BoxPosition(styleBox); + } + var bestPosition = findBestPosition(boxPosition, axis); + styleBox.move(bestPosition.toCSSCompatValues(containerBox)); + } + function WebVTT$1() { + // Nothing + } + + // Helper to allow strings to be decoded instead of the default binary utf8 data. + WebVTT$1.StringDecoder = function () { + return { + decode: function (data) { + if (!data) { + return ""; + } + if (typeof data !== "string") { + throw new Error("Error - expected string data."); + } + return decodeURIComponent(encodeURIComponent(data)); + } + }; + }; + WebVTT$1.convertCueToDOMTree = function (window, cuetext) { + if (!window || !cuetext) { + return null; + } + return parseContent(window, cuetext); + }; + var FONT_SIZE_PERCENT = 0.05; + var FONT_STYLE = "sans-serif"; + var CUE_BACKGROUND_PADDING = "1.5%"; + + // Runs the processing model over the cues and regions passed to it. + // @param overlay A block level element (usually a div) that the computed cues + // and regions will be placed into. + WebVTT$1.processCues = function (window, cues, overlay) { + if (!window || !cues || !overlay) { + return null; + } + + // Remove all previous children. + while (overlay.firstChild) { + overlay.removeChild(overlay.firstChild); + } + var paddedOverlay = window.document.createElement("div"); + paddedOverlay.style.position = "absolute"; + paddedOverlay.style.left = "0"; + paddedOverlay.style.right = "0"; + paddedOverlay.style.top = "0"; + paddedOverlay.style.bottom = "0"; + paddedOverlay.style.margin = CUE_BACKGROUND_PADDING; + overlay.appendChild(paddedOverlay); + + // Determine if we need to compute the display states of the cues. This could + // be the case if a cue's state has been changed since the last computation or + // if it has not been computed yet. + function shouldCompute(cues) { + for (var i = 0; i < cues.length; i++) { + if (cues[i].hasBeenReset || !cues[i].displayState) { + return true; + } + } + return false; + } + + // We don't need to recompute the cues' display states. Just reuse them. + if (!shouldCompute(cues)) { + for (var i = 0; i < cues.length; i++) { + paddedOverlay.appendChild(cues[i].displayState); + } + return; + } + var boxPositions = [], + containerBox = BoxPosition.getSimpleBoxPosition(paddedOverlay), + fontSize = Math.round(containerBox.height * FONT_SIZE_PERCENT * 100) / 100; + var styleOptions = { + font: fontSize + "px " + FONT_STYLE + }; + (function () { + var styleBox, cue; + for (var i = 0; i < cues.length; i++) { + cue = cues[i]; + + // Compute the intial position and styles of the cue div. + styleBox = new CueStyleBox(window, cue, styleOptions); + paddedOverlay.appendChild(styleBox.div); + + // Move the cue div to it's correct line position. + moveBoxToLinePosition(window, styleBox, containerBox, boxPositions); + + // Remember the computed div so that we don't have to recompute it later + // if we don't have too. + cue.displayState = styleBox.div; + boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox)); + } + })(); + }; + WebVTT$1.Parser = function (window, vttjs, decoder) { + if (!decoder) { + decoder = vttjs; + vttjs = {}; + } + if (!vttjs) { + vttjs = {}; + } + this.window = window; + this.vttjs = vttjs; + this.state = "INITIAL"; + this.buffer = ""; + this.decoder = decoder || new TextDecoder("utf8"); + this.regionList = []; + }; + WebVTT$1.Parser.prototype = { + // If the error is a ParsingError then report it to the consumer if + // possible. If it's not a ParsingError then throw it like normal. + reportOrThrowError: function (e) { + if (e instanceof ParsingError) { + this.onparsingerror && this.onparsingerror(e); + } else { + throw e; + } + }, + parse: function (data) { + var self = this; + + // If there is no data then we won't decode it, but will just try to parse + // whatever is in buffer already. This may occur in circumstances, for + // example when flush() is called. + if (data) { + // Try to decode the data that we received. + self.buffer += self.decoder.decode(data, { + stream: true + }); + } + function collectNextLine() { + var buffer = self.buffer; + var pos = 0; + while (pos < buffer.length && buffer[pos] !== '\r' && buffer[pos] !== '\n') { + ++pos; + } + var line = buffer.substr(0, pos); + // Advance the buffer early in case we fail below. + if (buffer[pos] === '\r') { + ++pos; + } + if (buffer[pos] === '\n') { + ++pos; + } + self.buffer = buffer.substr(pos); + return line; + } + + // 3.4 WebVTT region and WebVTT region settings syntax + function parseRegion(input) { + var settings = new Settings(); + parseOptions(input, function (k, v) { + switch (k) { + case "id": + settings.set(k, v); + break; + case "width": + settings.percent(k, v); + break; + case "lines": + settings.integer(k, v); + break; + case "regionanchor": + case "viewportanchor": + var xy = v.split(','); + if (xy.length !== 2) { + break; + } + // We have to make sure both x and y parse, so use a temporary + // settings object here. + var anchor = new Settings(); + anchor.percent("x", xy[0]); + anchor.percent("y", xy[1]); + if (!anchor.has("x") || !anchor.has("y")) { + break; + } + settings.set(k + "X", anchor.get("x")); + settings.set(k + "Y", anchor.get("y")); + break; + case "scroll": + settings.alt(k, v, ["up"]); + break; + } + }, /=/, /\s/); + + // Create the region, using default values for any values that were not + // specified. + if (settings.has("id")) { + var region = new (self.vttjs.VTTRegion || self.window.VTTRegion)(); + region.width = settings.get("width", 100); + region.lines = settings.get("lines", 3); + region.regionAnchorX = settings.get("regionanchorX", 0); + region.regionAnchorY = settings.get("regionanchorY", 100); + region.viewportAnchorX = settings.get("viewportanchorX", 0); + region.viewportAnchorY = settings.get("viewportanchorY", 100); + region.scroll = settings.get("scroll", ""); + // Register the region. + self.onregion && self.onregion(region); + // Remember the VTTRegion for later in case we parse any VTTCues that + // reference it. + self.regionList.push({ + id: settings.get("id"), + region: region + }); + } + } + + // draft-pantos-http-live-streaming-20 + // https://tools.ietf.org/html/draft-pantos-http-live-streaming-20#section-3.5 + // 3.5 WebVTT + function parseTimestampMap(input) { + var settings = new Settings(); + parseOptions(input, function (k, v) { + switch (k) { + case "MPEGT": + settings.integer(k + 'S', v); + break; + case "LOCA": + settings.set(k + 'L', parseTimeStamp(v)); + break; + } + }, /[^\d]:/, /,/); + self.ontimestampmap && self.ontimestampmap({ + "MPEGTS": settings.get("MPEGTS"), + "LOCAL": settings.get("LOCAL") + }); + } + + // 3.2 WebVTT metadata header syntax + function parseHeader(input) { + if (input.match(/X-TIMESTAMP-MAP/)) { + // This line contains HLS X-TIMESTAMP-MAP metadata + parseOptions(input, function (k, v) { + switch (k) { + case "X-TIMESTAMP-MAP": + parseTimestampMap(v); + break; + } + }, /=/); + } else { + parseOptions(input, function (k, v) { + switch (k) { + case "Region": + // 3.3 WebVTT region metadata header syntax + parseRegion(v); + break; + } + }, /:/); + } + } + + // 5.1 WebVTT file parsing. + try { + var line; + if (self.state === "INITIAL") { + // We can't start parsing until we have the first line. + if (!/\r\n|\n/.test(self.buffer)) { + return this; + } + line = collectNextLine(); + var m = line.match(/^WEBVTT([ \t].*)?$/); + if (!m || !m[0]) { + throw new ParsingError(ParsingError.Errors.BadSignature); + } + self.state = "HEADER"; + } + var alreadyCollectedLine = false; + while (self.buffer) { + // We can't parse a line until we have the full line. + if (!/\r\n|\n/.test(self.buffer)) { + return this; + } + if (!alreadyCollectedLine) { + line = collectNextLine(); + } else { + alreadyCollectedLine = false; + } + switch (self.state) { + case "HEADER": + // 13-18 - Allow a header (metadata) under the WEBVTT line. + if (/:/.test(line)) { + parseHeader(line); + } else if (!line) { + // An empty line terminates the header and starts the body (cues). + self.state = "ID"; + } + continue; + case "NOTE": + // Ignore NOTE blocks. + if (!line) { + self.state = "ID"; + } + continue; + case "ID": + // Check for the start of NOTE blocks. + if (/^NOTE($|[ \t])/.test(line)) { + self.state = "NOTE"; + break; + } + // 19-29 - Allow any number of line terminators, then initialize new cue values. + if (!line) { + continue; + } + self.cue = new (self.vttjs.VTTCue || self.window.VTTCue)(0, 0, ""); + // Safari still uses the old middle value and won't accept center + try { + self.cue.align = "center"; + } catch (e) { + self.cue.align = "middle"; + } + self.state = "CUE"; + // 30-39 - Check if self line contains an optional identifier or timing data. + if (line.indexOf("-->") === -1) { + self.cue.id = line; + continue; + } + // Process line as start of a cue. + /*falls through*/ + case "CUE": + // 40 - Collect cue timings and settings. + try { + parseCue(line, self.cue, self.regionList); + } catch (e) { + self.reportOrThrowError(e); + // In case of an error ignore rest of the cue. + self.cue = null; + self.state = "BADCUE"; + continue; + } + self.state = "CUETEXT"; + continue; + case "CUETEXT": + var hasSubstring = line.indexOf("-->") !== -1; + // 34 - If we have an empty line then report the cue. + // 35 - If we have the special substring '-->' then report the cue, + // but do not collect the line as we need to process the current + // one as a new cue. + if (!line || hasSubstring && (alreadyCollectedLine = true)) { + // We are done parsing self cue. + self.oncue && self.oncue(self.cue); + self.cue = null; + self.state = "ID"; + continue; + } + if (self.cue.text) { + self.cue.text += "\n"; + } + self.cue.text += line.replace(/\u2028/g, '\n').replace(/u2029/g, '\n'); + continue; + case "BADCUE": + // BADCUE + // 54-62 - Collect and discard the remaining cue. + if (!line) { + self.state = "ID"; + } + continue; + } + } + } catch (e) { + self.reportOrThrowError(e); + + // If we are currently parsing a cue, report what we have. + if (self.state === "CUETEXT" && self.cue && self.oncue) { + self.oncue(self.cue); + } + self.cue = null; + // Enter BADWEBVTT state if header was not parsed correctly otherwise + // another exception occurred so enter BADCUE state. + self.state = self.state === "INITIAL" ? "BADWEBVTT" : "BADCUE"; + } + return this; + }, + flush: function () { + var self = this; + try { + // Finish decoding the stream. + self.buffer += self.decoder.decode(); + // Synthesize the end of the current cue or region. + if (self.cue || self.state === "HEADER") { + self.buffer += "\n\n"; + self.parse(); + } + // If we've flushed, parsed, and we're still on the INITIAL state then + // that means we don't have enough of the stream to parse the first + // line. + if (self.state === "INITIAL") { + throw new ParsingError(ParsingError.Errors.BadSignature); + } + } catch (e) { + self.reportOrThrowError(e); + } + self.onflush && self.onflush(); + return this; + } + }; + var vtt = WebVTT$1; + + /** + * Copyright 2013 vtt.js Contributors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + var autoKeyword = "auto"; + var directionSetting = { + "": 1, + "lr": 1, + "rl": 1 + }; + var alignSetting = { + "start": 1, + "center": 1, + "end": 1, + "left": 1, + "right": 1, + "auto": 1, + "line-left": 1, + "line-right": 1 + }; + function findDirectionSetting(value) { + if (typeof value !== "string") { + return false; + } + var dir = directionSetting[value.toLowerCase()]; + return dir ? value.toLowerCase() : false; + } + function findAlignSetting(value) { + if (typeof value !== "string") { + return false; + } + var align = alignSetting[value.toLowerCase()]; + return align ? value.toLowerCase() : false; + } + function VTTCue(startTime, endTime, text) { + /** + * Shim implementation specific properties. These properties are not in + * the spec. + */ + + // Lets us know when the VTTCue's data has changed in such a way that we need + // to recompute its display state. This lets us compute its display state + // lazily. + this.hasBeenReset = false; + + /** + * VTTCue and TextTrackCue properties + * http://dev.w3.org/html5/webvtt/#vttcue-interface + */ + + var _id = ""; + var _pauseOnExit = false; + var _startTime = startTime; + var _endTime = endTime; + var _text = text; + var _region = null; + var _vertical = ""; + var _snapToLines = true; + var _line = "auto"; + var _lineAlign = "start"; + var _position = "auto"; + var _positionAlign = "auto"; + var _size = 100; + var _align = "center"; + Object.defineProperties(this, { + "id": { + enumerable: true, + get: function () { + return _id; + }, + set: function (value) { + _id = "" + value; + } + }, + "pauseOnExit": { + enumerable: true, + get: function () { + return _pauseOnExit; + }, + set: function (value) { + _pauseOnExit = !!value; + } + }, + "startTime": { + enumerable: true, + get: function () { + return _startTime; + }, + set: function (value) { + if (typeof value !== "number") { + throw new TypeError("Start time must be set to a number."); + } + _startTime = value; + this.hasBeenReset = true; + } + }, + "endTime": { + enumerable: true, + get: function () { + return _endTime; + }, + set: function (value) { + if (typeof value !== "number") { + throw new TypeError("End time must be set to a number."); + } + _endTime = value; + this.hasBeenReset = true; + } + }, + "text": { + enumerable: true, + get: function () { + return _text; + }, + set: function (value) { + _text = "" + value; + this.hasBeenReset = true; + } + }, + "region": { + enumerable: true, + get: function () { + return _region; + }, + set: function (value) { + _region = value; + this.hasBeenReset = true; + } + }, + "vertical": { + enumerable: true, + get: function () { + return _vertical; + }, + set: function (value) { + var setting = findDirectionSetting(value); + // Have to check for false because the setting an be an empty string. + if (setting === false) { + throw new SyntaxError("Vertical: an invalid or illegal direction string was specified."); + } + _vertical = setting; + this.hasBeenReset = true; + } + }, + "snapToLines": { + enumerable: true, + get: function () { + return _snapToLines; + }, + set: function (value) { + _snapToLines = !!value; + this.hasBeenReset = true; + } + }, + "line": { + enumerable: true, + get: function () { + return _line; + }, + set: function (value) { + if (typeof value !== "number" && value !== autoKeyword) { + throw new SyntaxError("Line: an invalid number or illegal string was specified."); + } + _line = value; + this.hasBeenReset = true; + } + }, + "lineAlign": { + enumerable: true, + get: function () { + return _lineAlign; + }, + set: function (value) { + var setting = findAlignSetting(value); + if (!setting) { + console.warn("lineAlign: an invalid or illegal string was specified."); + } else { + _lineAlign = setting; + this.hasBeenReset = true; + } + } + }, + "position": { + enumerable: true, + get: function () { + return _position; + }, + set: function (value) { + if (value < 0 || value > 100) { + throw new Error("Position must be between 0 and 100."); + } + _position = value; + this.hasBeenReset = true; + } + }, + "positionAlign": { + enumerable: true, + get: function () { + return _positionAlign; + }, + set: function (value) { + var setting = findAlignSetting(value); + if (!setting) { + console.warn("positionAlign: an invalid or illegal string was specified."); + } else { + _positionAlign = setting; + this.hasBeenReset = true; + } + } + }, + "size": { + enumerable: true, + get: function () { + return _size; + }, + set: function (value) { + if (value < 0 || value > 100) { + throw new Error("Size must be between 0 and 100."); + } + _size = value; + this.hasBeenReset = true; + } + }, + "align": { + enumerable: true, + get: function () { + return _align; + }, + set: function (value) { + var setting = findAlignSetting(value); + if (!setting) { + throw new SyntaxError("align: an invalid or illegal alignment string was specified."); + } + _align = setting; + this.hasBeenReset = true; + } + } + }); + + /** + * Other <track> spec defined properties + */ + + // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state + this.displayState = undefined; + } + + /** + * VTTCue methods + */ + + VTTCue.prototype.getCueAsHTML = function () { + // Assume WebVTT.convertCueToDOMTree is on the global. + return WebVTT.convertCueToDOMTree(window, this.text); + }; + var vttcue = VTTCue; + + /** + * Copyright 2013 vtt.js Contributors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + var scrollSetting = { + "": true, + "up": true + }; + function findScrollSetting(value) { + if (typeof value !== "string") { + return false; + } + var scroll = scrollSetting[value.toLowerCase()]; + return scroll ? value.toLowerCase() : false; + } + function isValidPercentValue(value) { + return typeof value === "number" && value >= 0 && value <= 100; + } + + // VTTRegion shim http://dev.w3.org/html5/webvtt/#vttregion-interface + function VTTRegion() { + var _width = 100; + var _lines = 3; + var _regionAnchorX = 0; + var _regionAnchorY = 100; + var _viewportAnchorX = 0; + var _viewportAnchorY = 100; + var _scroll = ""; + Object.defineProperties(this, { + "width": { + enumerable: true, + get: function () { + return _width; + }, + set: function (value) { + if (!isValidPercentValue(value)) { + throw new Error("Width must be between 0 and 100."); + } + _width = value; + } + }, + "lines": { + enumerable: true, + get: function () { + return _lines; + }, + set: function (value) { + if (typeof value !== "number") { + throw new TypeError("Lines must be set to a number."); + } + _lines = value; + } + }, + "regionAnchorY": { + enumerable: true, + get: function () { + return _regionAnchorY; + }, + set: function (value) { + if (!isValidPercentValue(value)) { + throw new Error("RegionAnchorX must be between 0 and 100."); + } + _regionAnchorY = value; + } + }, + "regionAnchorX": { + enumerable: true, + get: function () { + return _regionAnchorX; + }, + set: function (value) { + if (!isValidPercentValue(value)) { + throw new Error("RegionAnchorY must be between 0 and 100."); + } + _regionAnchorX = value; + } + }, + "viewportAnchorY": { + enumerable: true, + get: function () { + return _viewportAnchorY; + }, + set: function (value) { + if (!isValidPercentValue(value)) { + throw new Error("ViewportAnchorY must be between 0 and 100."); + } + _viewportAnchorY = value; + } + }, + "viewportAnchorX": { + enumerable: true, + get: function () { + return _viewportAnchorX; + }, + set: function (value) { + if (!isValidPercentValue(value)) { + throw new Error("ViewportAnchorX must be between 0 and 100."); + } + _viewportAnchorX = value; + } + }, + "scroll": { + enumerable: true, + get: function () { + return _scroll; + }, + set: function (value) { + var setting = findScrollSetting(value); + // Have to check for false as an empty string is a legal value. + if (setting === false) { + console.warn("Scroll: an invalid or illegal string was specified."); + } else { + _scroll = setting; + } + } + } + }); + } + var vttregion = VTTRegion; + + var browserIndex = createCommonjsModule(function (module) { + /** + * Copyright 2013 vtt.js Contributors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + // Default exports for Node. Export the extended versions of VTTCue and + // VTTRegion in Node since we likely want the capability to convert back and + // forth between JSON. If we don't then it's not that big of a deal since we're + // off browser. + + var vttjs = module.exports = { + WebVTT: vtt, + VTTCue: vttcue, + VTTRegion: vttregion + }; + window_1.vttjs = vttjs; + window_1.WebVTT = vttjs.WebVTT; + var cueShim = vttjs.VTTCue; + var regionShim = vttjs.VTTRegion; + var nativeVTTCue = window_1.VTTCue; + var nativeVTTRegion = window_1.VTTRegion; + vttjs.shim = function () { + window_1.VTTCue = cueShim; + window_1.VTTRegion = regionShim; + }; + vttjs.restore = function () { + window_1.VTTCue = nativeVTTCue; + window_1.VTTRegion = nativeVTTRegion; + }; + if (!window_1.VTTCue) { + vttjs.shim(); + } + }); + browserIndex.WebVTT; + browserIndex.VTTCue; + browserIndex.VTTRegion; + + /** + * @file tech.js + */ + + /** + * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string + * that just contains the src url alone. + * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};` + * `var SourceString = 'http://example.com/some-video.mp4';` + * + * @typedef {Object|string} SourceObject + * + * @property {string} src + * The url to the source + * + * @property {string} type + * The mime type of the source + */ + + /** + * A function used by {@link Tech} to create a new {@link TextTrack}. + * + * @private + * + * @param {Tech} self + * An instance of the Tech class. + * + * @param {string} kind + * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata) + * + * @param {string} [label] + * Label to identify the text track + * + * @param {string} [language] + * Two letter language abbreviation + * + * @param {Object} [options={}] + * An object with additional text track options + * + * @return {TextTrack} + * The text track that was created. + */ + function createTrackHelper(self, kind, label, language, options = {}) { + const tracks = self.textTracks(); + options.kind = kind; + if (label) { + options.label = label; + } + if (language) { + options.language = language; + } + options.tech = self; + const track = new ALL.text.TrackClass(options); + tracks.addTrack(track); + return track; + } + + /** + * This is the base class for media playback technology controllers, such as + * {@link HTML5} + * + * @extends Component + */ + class Tech extends Component { + /** + * Create an instance of this Tech. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @param {Function} [ready] + * Callback function to call when the `HTML5` Tech is ready. + */ + constructor(options = {}, ready = function () {}) { + // we don't want the tech to report user activity automatically. + // This is done manually in addControlsListeners + options.reportTouchActivity = false; + super(null, options, ready); + this.onDurationChange_ = e => this.onDurationChange(e); + this.trackProgress_ = e => this.trackProgress(e); + this.trackCurrentTime_ = e => this.trackCurrentTime(e); + this.stopTrackingCurrentTime_ = e => this.stopTrackingCurrentTime(e); + this.disposeSourceHandler_ = e => this.disposeSourceHandler(e); + this.queuedHanders_ = new Set(); + + // keep track of whether the current source has played at all to + // implement a very limited played() + this.hasStarted_ = false; + this.on('playing', function () { + this.hasStarted_ = true; + }); + this.on('loadstart', function () { + this.hasStarted_ = false; + }); + ALL.names.forEach(name => { + const props = ALL[name]; + if (options && options[props.getterName]) { + this[props.privateName] = options[props.getterName]; + } + }); + + // Manually track progress in cases where the browser/tech doesn't report it. + if (!this.featuresProgressEvents) { + this.manualProgressOn(); + } + + // Manually track timeupdates in cases where the browser/tech doesn't report it. + if (!this.featuresTimeupdateEvents) { + this.manualTimeUpdatesOn(); + } + ['Text', 'Audio', 'Video'].forEach(track => { + if (options[`native${track}Tracks`] === false) { + this[`featuresNative${track}Tracks`] = false; + } + }); + if (options.nativeCaptions === false || options.nativeTextTracks === false) { + this.featuresNativeTextTracks = false; + } else if (options.nativeCaptions === true || options.nativeTextTracks === true) { + this.featuresNativeTextTracks = true; + } + if (!this.featuresNativeTextTracks) { + this.emulateTextTracks(); + } + this.preloadTextTracks = options.preloadTextTracks !== false; + this.autoRemoteTextTracks_ = new ALL.text.ListClass(); + this.initTrackListeners(); + + // Turn on component tap events only if not using native controls + if (!options.nativeControlsForTouch) { + this.emitTapEvents(); + } + if (this.constructor) { + this.name_ = this.constructor.name || 'Unknown Tech'; + } + } + + /** + * A special function to trigger source set in a way that will allow player + * to re-trigger if the player or tech are not ready yet. + * + * @fires Tech#sourceset + * @param {string} src The source string at the time of the source changing. + */ + triggerSourceset(src) { + if (!this.isReady_) { + // on initial ready we have to trigger source set + // 1ms after ready so that player can watch for it. + this.one('ready', () => this.setTimeout(() => this.triggerSourceset(src), 1)); + } + + /** + * Fired when the source is set on the tech causing the media element + * to reload. + * + * @see {@link Player#event:sourceset} + * @event Tech#sourceset + * @type {Event} + */ + this.trigger({ + src, + type: 'sourceset' + }); + } + + /* Fallbacks for unsupported event types + ================================================================================ */ + + /** + * Polyfill the `progress` event for browsers that don't support it natively. + * + * @see {@link Tech#trackProgress} + */ + manualProgressOn() { + this.on('durationchange', this.onDurationChange_); + this.manualProgress = true; + + // Trigger progress watching when a source begins loading + this.one('ready', this.trackProgress_); + } + + /** + * Turn off the polyfill for `progress` events that was created in + * {@link Tech#manualProgressOn} + */ + manualProgressOff() { + this.manualProgress = false; + this.stopTrackingProgress(); + this.off('durationchange', this.onDurationChange_); + } + + /** + * This is used to trigger a `progress` event when the buffered percent changes. It + * sets an interval function that will be called every 500 milliseconds to check if the + * buffer end percent has changed. + * + * > This function is called by {@link Tech#manualProgressOn} + * + * @param {Event} event + * The `ready` event that caused this to run. + * + * @listens Tech#ready + * @fires Tech#progress + */ + trackProgress(event) { + this.stopTrackingProgress(); + this.progressInterval = this.setInterval(bind_(this, function () { + // Don't trigger unless buffered amount is greater than last time + + const numBufferedPercent = this.bufferedPercent(); + if (this.bufferedPercent_ !== numBufferedPercent) { + /** + * See {@link Player#progress} + * + * @event Tech#progress + * @type {Event} + */ + this.trigger('progress'); + } + this.bufferedPercent_ = numBufferedPercent; + if (numBufferedPercent === 1) { + this.stopTrackingProgress(); + } + }), 500); + } + + /** + * Update our internal duration on a `durationchange` event by calling + * {@link Tech#duration}. + * + * @param {Event} event + * The `durationchange` event that caused this to run. + * + * @listens Tech#durationchange + */ + onDurationChange(event) { + this.duration_ = this.duration(); + } + + /** + * Get and create a `TimeRange` object for buffering. + * + * @return { import('../utils/time').TimeRange } + * The time range object that was created. + */ + buffered() { + return createTimeRanges(0, 0); + } + + /** + * Get the percentage of the current video that is currently buffered. + * + * @return {number} + * A number from 0 to 1 that represents the decimal percentage of the + * video that is buffered. + * + */ + bufferedPercent() { + return bufferedPercent(this.buffered(), this.duration_); + } + + /** + * Turn off the polyfill for `progress` events that was created in + * {@link Tech#manualProgressOn} + * Stop manually tracking progress events by clearing the interval that was set in + * {@link Tech#trackProgress}. + */ + stopTrackingProgress() { + this.clearInterval(this.progressInterval); + } + + /** + * Polyfill the `timeupdate` event for browsers that don't support it. + * + * @see {@link Tech#trackCurrentTime} + */ + manualTimeUpdatesOn() { + this.manualTimeUpdates = true; + this.on('play', this.trackCurrentTime_); + this.on('pause', this.stopTrackingCurrentTime_); + } + + /** + * Turn off the polyfill for `timeupdate` events that was created in + * {@link Tech#manualTimeUpdatesOn} + */ + manualTimeUpdatesOff() { + this.manualTimeUpdates = false; + this.stopTrackingCurrentTime(); + this.off('play', this.trackCurrentTime_); + this.off('pause', this.stopTrackingCurrentTime_); + } + + /** + * Sets up an interval function to track current time and trigger `timeupdate` every + * 250 milliseconds. + * + * @listens Tech#play + * @triggers Tech#timeupdate + */ + trackCurrentTime() { + if (this.currentTimeInterval) { + this.stopTrackingCurrentTime(); + } + this.currentTimeInterval = this.setInterval(function () { + /** + * Triggered at an interval of 250ms to indicated that time is passing in the video. + * + * @event Tech#timeupdate + * @type {Event} + */ + this.trigger({ + type: 'timeupdate', + target: this, + manuallyTriggered: true + }); + + // 42 = 24 fps // 250 is what Webkit uses // FF uses 15 + }, 250); + } + + /** + * Stop the interval function created in {@link Tech#trackCurrentTime} so that the + * `timeupdate` event is no longer triggered. + * + * @listens {Tech#pause} + */ + stopTrackingCurrentTime() { + this.clearInterval(this.currentTimeInterval); + + // #1002 - if the video ends right before the next timeupdate would happen, + // the progress bar won't make it all the way to the end + this.trigger({ + type: 'timeupdate', + target: this, + manuallyTriggered: true + }); + } + + /** + * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList}, + * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech. + * + * @fires Component#dispose + */ + dispose() { + // clear out all tracks because we can't reuse them between techs + this.clearTracks(NORMAL.names); + + // Turn off any manual progress or timeupdate tracking + if (this.manualProgress) { + this.manualProgressOff(); + } + if (this.manualTimeUpdates) { + this.manualTimeUpdatesOff(); + } + super.dispose(); + } + + /** + * Clear out a single `TrackList` or an array of `TrackLists` given their names. + * + * > Note: Techs without source handlers should call this between sources for `video` + * & `audio` tracks. You don't want to use them between tracks! + * + * @param {string[]|string} types + * TrackList names to clear, valid names are `video`, `audio`, and + * `text`. + */ + clearTracks(types) { + types = [].concat(types); + // clear out all tracks because we can't reuse them between techs + types.forEach(type => { + const list = this[`${type}Tracks`]() || []; + let i = list.length; + while (i--) { + const track = list[i]; + if (type === 'text') { + this.removeRemoteTextTrack(track); + } + list.removeTrack(track); + } + }); + } + + /** + * Remove any TextTracks added via addRemoteTextTrack that are + * flagged for automatic garbage collection + */ + cleanupAutoTextTracks() { + const list = this.autoRemoteTextTracks_ || []; + let i = list.length; + while (i--) { + const track = list[i]; + this.removeRemoteTextTrack(track); + } + } + + /** + * Reset the tech, which will removes all sources and reset the internal readyState. + * + * @abstract + */ + reset() {} + + /** + * Get the value of `crossOrigin` from the tech. + * + * @abstract + * + * @see {Html5#crossOrigin} + */ + crossOrigin() {} + + /** + * Set the value of `crossOrigin` on the tech. + * + * @abstract + * + * @param {string} crossOrigin the crossOrigin value + * @see {Html5#setCrossOrigin} + */ + setCrossOrigin() {} + + /** + * Get or set an error on the Tech. + * + * @param {MediaError} [err] + * Error to set on the Tech + * + * @return {MediaError|null} + * The current error object on the tech, or null if there isn't one. + */ + error(err) { + if (err !== undefined) { + this.error_ = new MediaError(err); + this.trigger('error'); + } + return this.error_; + } + + /** + * Returns the `TimeRange`s that have been played through for the current source. + * + * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`. + * It only checks whether the source has played at all or not. + * + * @return { import('../utils/time').TimeRange } + * - A single time range if this video has played + * - An empty set of ranges if not. + */ + played() { + if (this.hasStarted_) { + return createTimeRanges(0, 0); + } + return createTimeRanges(); + } + + /** + * Start playback + * + * @abstract + * + * @see {Html5#play} + */ + play() {} + + /** + * Set whether we are scrubbing or not + * + * @abstract + * @param {boolean} _isScrubbing + * - true for we are currently scrubbing + * - false for we are no longer scrubbing + * + * @see {Html5#setScrubbing} + */ + setScrubbing(_isScrubbing) {} + + /** + * Get whether we are scrubbing or not + * + * @abstract + * + * @see {Html5#scrubbing} + */ + scrubbing() {} + + /** + * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was + * previously called. + * + * @param {number} _seconds + * Set the current time of the media to this. + * @fires Tech#timeupdate + */ + setCurrentTime(_seconds) { + // improve the accuracy of manual timeupdates + if (this.manualTimeUpdates) { + /** + * A manual `timeupdate` event. + * + * @event Tech#timeupdate + * @type {Event} + */ + this.trigger({ + type: 'timeupdate', + target: this, + manuallyTriggered: true + }); + } + } + + /** + * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and + * {@link TextTrackList} events. + * + * This adds {@link EventTarget~EventListeners} for `addtrack`, and `removetrack`. + * + * @fires Tech#audiotrackchange + * @fires Tech#videotrackchange + * @fires Tech#texttrackchange + */ + initTrackListeners() { + /** + * Triggered when tracks are added or removed on the Tech {@link AudioTrackList} + * + * @event Tech#audiotrackchange + * @type {Event} + */ + + /** + * Triggered when tracks are added or removed on the Tech {@link VideoTrackList} + * + * @event Tech#videotrackchange + * @type {Event} + */ + + /** + * Triggered when tracks are added or removed on the Tech {@link TextTrackList} + * + * @event Tech#texttrackchange + * @type {Event} + */ + NORMAL.names.forEach(name => { + const props = NORMAL[name]; + const trackListChanges = () => { + this.trigger(`${name}trackchange`); + }; + const tracks = this[props.getterName](); + tracks.addEventListener('removetrack', trackListChanges); + tracks.addEventListener('addtrack', trackListChanges); + this.on('dispose', () => { + tracks.removeEventListener('removetrack', trackListChanges); + tracks.removeEventListener('addtrack', trackListChanges); + }); + }); + } + + /** + * Emulate TextTracks using vtt.js if necessary + * + * @fires Tech#vttjsloaded + * @fires Tech#vttjserror + */ + addWebVttScript_() { + if (window.WebVTT) { + return; + } + + // Initially, Tech.el_ is a child of a dummy-div wait until the Component system + // signals that the Tech is ready at which point Tech.el_ is part of the DOM + // before inserting the WebVTT script + if (document.body.contains(this.el())) { + // load via require if available and vtt.js script location was not passed in + // as an option. novtt builds will turn the above require call into an empty object + // which will cause this if check to always fail. + if (!this.options_['vtt.js'] && isPlain(browserIndex) && Object.keys(browserIndex).length > 0) { + this.trigger('vttjsloaded'); + return; + } + + // load vtt.js via the script location option or the cdn of no location was + // passed in + const script = document.createElement('script'); + script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js'; + script.onload = () => { + /** + * Fired when vtt.js is loaded. + * + * @event Tech#vttjsloaded + * @type {Event} + */ + this.trigger('vttjsloaded'); + }; + script.onerror = () => { + /** + * Fired when vtt.js was not loaded due to an error + * + * @event Tech#vttjsloaded + * @type {Event} + */ + this.trigger('vttjserror'); + }; + this.on('dispose', () => { + script.onload = null; + script.onerror = null; + }); + // but have not loaded yet and we set it to true before the inject so that + // we don't overwrite the injected window.WebVTT if it loads right away + window.WebVTT = true; + this.el().parentNode.appendChild(script); + } else { + this.ready(this.addWebVttScript_); + } + } + + /** + * Emulate texttracks + * + */ + emulateTextTracks() { + const tracks = this.textTracks(); + const remoteTracks = this.remoteTextTracks(); + const handleAddTrack = e => tracks.addTrack(e.track); + const handleRemoveTrack = e => tracks.removeTrack(e.track); + remoteTracks.on('addtrack', handleAddTrack); + remoteTracks.on('removetrack', handleRemoveTrack); + this.addWebVttScript_(); + const updateDisplay = () => this.trigger('texttrackchange'); + const textTracksChanges = () => { + updateDisplay(); + for (let i = 0; i < tracks.length; i++) { + const track = tracks[i]; + track.removeEventListener('cuechange', updateDisplay); + if (track.mode === 'showing') { + track.addEventListener('cuechange', updateDisplay); + } + } + }; + textTracksChanges(); + tracks.addEventListener('change', textTracksChanges); + tracks.addEventListener('addtrack', textTracksChanges); + tracks.addEventListener('removetrack', textTracksChanges); + this.on('dispose', function () { + remoteTracks.off('addtrack', handleAddTrack); + remoteTracks.off('removetrack', handleRemoveTrack); + tracks.removeEventListener('change', textTracksChanges); + tracks.removeEventListener('addtrack', textTracksChanges); + tracks.removeEventListener('removetrack', textTracksChanges); + for (let i = 0; i < tracks.length; i++) { + const track = tracks[i]; + track.removeEventListener('cuechange', updateDisplay); + } + }); + } + + /** + * Create and returns a remote {@link TextTrack} object. + * + * @param {string} kind + * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata) + * + * @param {string} [label] + * Label to identify the text track + * + * @param {string} [language] + * Two letter language abbreviation + * + * @return {TextTrack} + * The TextTrack that gets created. + */ + addTextTrack(kind, label, language) { + if (!kind) { + throw new Error('TextTrack kind is required but was not provided'); + } + return createTrackHelper(this, kind, label, language); + } + + /** + * Create an emulated TextTrack for use by addRemoteTextTrack + * + * This is intended to be overridden by classes that inherit from + * Tech in order to create native or custom TextTracks. + * + * @param {Object} options + * The object should contain the options to initialize the TextTrack with. + * + * @param {string} [options.kind] + * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata). + * + * @param {string} [options.label]. + * Label to identify the text track + * + * @param {string} [options.language] + * Two letter language abbreviation. + * + * @return {HTMLTrackElement} + * The track element that gets created. + */ + createRemoteTextTrack(options) { + const track = merge(options, { + tech: this + }); + return new REMOTE.remoteTextEl.TrackClass(track); + } + + /** + * Creates a remote text track object and returns an html track element. + * + * > Note: This can be an emulated {@link HTMLTrackElement} or a native one. + * + * @param {Object} options + * See {@link Tech#createRemoteTextTrack} for more detailed properties. + * + * @param {boolean} [manualCleanup=false] + * - When false: the TextTrack will be automatically removed from the video + * element whenever the source changes + * - When True: The TextTrack will have to be cleaned up manually + * + * @return {HTMLTrackElement} + * An Html Track Element. + * + */ + addRemoteTextTrack(options = {}, manualCleanup) { + const htmlTrackElement = this.createRemoteTextTrack(options); + if (typeof manualCleanup !== 'boolean') { + manualCleanup = false; + } + + // store HTMLTrackElement and TextTrack to remote list + this.remoteTextTrackEls().addTrackElement_(htmlTrackElement); + this.remoteTextTracks().addTrack(htmlTrackElement.track); + if (manualCleanup === false) { + // create the TextTrackList if it doesn't exist + this.ready(() => this.autoRemoteTextTracks_.addTrack(htmlTrackElement.track)); + } + return htmlTrackElement; + } + + /** + * Remove a remote text track from the remote `TextTrackList`. + * + * @param {TextTrack} track + * `TextTrack` to remove from the `TextTrackList` + */ + removeRemoteTextTrack(track) { + const trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track); + + // remove HTMLTrackElement and TextTrack from remote list + this.remoteTextTrackEls().removeTrackElement_(trackElement); + this.remoteTextTracks().removeTrack(track); + this.autoRemoteTextTracks_.removeTrack(track); + } + + /** + * Gets available media playback quality metrics as specified by the W3C's Media + * Playback Quality API. + * + * @see [Spec]{@link https://wicg.github.io/media-playback-quality} + * + * @return {Object} + * An object with supported media playback quality metrics + * + * @abstract + */ + getVideoPlaybackQuality() { + return {}; + } + + /** + * Attempt to create a floating video window always on top of other windows + * so that users may continue consuming media while they interact with other + * content sites, or applications on their device. + * + * @see [Spec]{@link https://wicg.github.io/picture-in-picture} + * + * @return {Promise|undefined} + * A promise with a Picture-in-Picture window if the browser supports + * Promises (or one was passed in as an option). It returns undefined + * otherwise. + * + * @abstract + */ + requestPictureInPicture() { + return Promise.reject(); + } + + /** + * A method to check for the value of the 'disablePictureInPicture' <video> property. + * Defaults to true, as it should be considered disabled if the tech does not support pip + * + * @abstract + */ + disablePictureInPicture() { + return true; + } + + /** + * A method to set or unset the 'disablePictureInPicture' <video> property. + * + * @abstract + */ + setDisablePictureInPicture() {} + + /** + * A fallback implementation of requestVideoFrameCallback using requestAnimationFrame + * + * @param {function} cb + * @return {number} request id + */ + requestVideoFrameCallback(cb) { + const id = newGUID(); + if (!this.isReady_ || this.paused()) { + this.queuedHanders_.add(id); + this.one('playing', () => { + if (this.queuedHanders_.has(id)) { + this.queuedHanders_.delete(id); + cb(); + } + }); + } else { + this.requestNamedAnimationFrame(id, cb); + } + return id; + } + + /** + * A fallback implementation of cancelVideoFrameCallback + * + * @param {number} id id of callback to be cancelled + */ + cancelVideoFrameCallback(id) { + if (this.queuedHanders_.has(id)) { + this.queuedHanders_.delete(id); + } else { + this.cancelNamedAnimationFrame(id); + } + } + + /** + * A method to set a poster from a `Tech`. + * + * @abstract + */ + setPoster() {} + + /** + * A method to check for the presence of the 'playsinline' <video> attribute. + * + * @abstract + */ + playsinline() {} + + /** + * A method to set or unset the 'playsinline' <video> attribute. + * + * @abstract + */ + setPlaysinline() {} + + /** + * Attempt to force override of native audio tracks. + * + * @param {boolean} override - If set to true native audio will be overridden, + * otherwise native audio will potentially be used. + * + * @abstract + */ + overrideNativeAudioTracks(override) {} + + /** + * Attempt to force override of native video tracks. + * + * @param {boolean} override - If set to true native video will be overridden, + * otherwise native video will potentially be used. + * + * @abstract + */ + overrideNativeVideoTracks(override) {} + + /** + * Check if the tech can support the given mime-type. + * + * The base tech does not support any type, but source handlers might + * overwrite this. + * + * @param {string} _type + * The mimetype to check for support + * + * @return {string} + * 'probably', 'maybe', or empty string + * + * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType} + * + * @abstract + */ + canPlayType(_type) { + return ''; + } + + /** + * Check if the type is supported by this tech. + * + * The base tech does not support any type, but source handlers might + * overwrite this. + * + * @param {string} _type + * The media type to check + * @return {string} Returns the native video element's response + */ + static canPlayType(_type) { + return ''; + } + + /** + * Check if the tech can support the given source + * + * @param {Object} srcObj + * The source object + * @param {Object} options + * The options passed to the tech + * @return {string} 'probably', 'maybe', or '' (empty string) + */ + static canPlaySource(srcObj, options) { + return Tech.canPlayType(srcObj.type); + } + + /* + * Return whether the argument is a Tech or not. + * Can be passed either a Class like `Html5` or a instance like `player.tech_` + * + * @param {Object} component + * The item to check + * + * @return {boolean} + * Whether it is a tech or not + * - True if it is a tech + * - False if it is not + */ + static isTech(component) { + return component.prototype instanceof Tech || component instanceof Tech || component === Tech; + } + + /** + * Registers a `Tech` into a shared list for videojs. + * + * @param {string} name + * Name of the `Tech` to register. + * + * @param {Object} tech + * The `Tech` class to register. + */ + static registerTech(name, tech) { + if (!Tech.techs_) { + Tech.techs_ = {}; + } + if (!Tech.isTech(tech)) { + throw new Error(`Tech ${name} must be a Tech`); + } + if (!Tech.canPlayType) { + throw new Error('Techs must have a static canPlayType method on them'); + } + if (!Tech.canPlaySource) { + throw new Error('Techs must have a static canPlaySource method on them'); + } + name = toTitleCase(name); + Tech.techs_[name] = tech; + Tech.techs_[toLowerCase(name)] = tech; + if (name !== 'Tech') { + // camel case the techName for use in techOrder + Tech.defaultTechOrder_.push(name); + } + return tech; + } + + /** + * Get a `Tech` from the shared list by name. + * + * @param {string} name + * `camelCase` or `TitleCase` name of the Tech to get + * + * @return {Tech|undefined} + * The `Tech` or undefined if there was no tech with the name requested. + */ + static getTech(name) { + if (!name) { + return; + } + if (Tech.techs_ && Tech.techs_[name]) { + return Tech.techs_[name]; + } + name = toTitleCase(name); + if (window && window.videojs && window.videojs[name]) { + log.warn(`The ${name} tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)`); + return window.videojs[name]; + } + } + } + + /** + * Get the {@link VideoTrackList} + * + * @returns {VideoTrackList} + * @method Tech.prototype.videoTracks + */ + + /** + * Get the {@link AudioTrackList} + * + * @returns {AudioTrackList} + * @method Tech.prototype.audioTracks + */ + + /** + * Get the {@link TextTrackList} + * + * @returns {TextTrackList} + * @method Tech.prototype.textTracks + */ + + /** + * Get the remote element {@link TextTrackList} + * + * @returns {TextTrackList} + * @method Tech.prototype.remoteTextTracks + */ + + /** + * Get the remote element {@link HtmlTrackElementList} + * + * @returns {HtmlTrackElementList} + * @method Tech.prototype.remoteTextTrackEls + */ + + ALL.names.forEach(function (name) { + const props = ALL[name]; + Tech.prototype[props.getterName] = function () { + this[props.privateName] = this[props.privateName] || new props.ListClass(); + return this[props.privateName]; + }; + }); + + /** + * List of associated text tracks + * + * @type {TextTrackList} + * @private + * @property Tech#textTracks_ + */ + + /** + * List of associated audio tracks. + * + * @type {AudioTrackList} + * @private + * @property Tech#audioTracks_ + */ + + /** + * List of associated video tracks. + * + * @type {VideoTrackList} + * @private + * @property Tech#videoTracks_ + */ + + /** + * Boolean indicating whether the `Tech` supports volume control. + * + * @type {boolean} + * @default + */ + Tech.prototype.featuresVolumeControl = true; + + /** + * Boolean indicating whether the `Tech` supports muting volume. + * + * @type {boolean} + * @default + */ + Tech.prototype.featuresMuteControl = true; + + /** + * Boolean indicating whether the `Tech` supports fullscreen resize control. + * Resizing plugins using request fullscreen reloads the plugin + * + * @type {boolean} + * @default + */ + Tech.prototype.featuresFullscreenResize = false; + + /** + * Boolean indicating whether the `Tech` supports changing the speed at which the video + * plays. Examples: + * - Set player to play 2x (twice) as fast + * - Set player to play 0.5x (half) as fast + * + * @type {boolean} + * @default + */ + Tech.prototype.featuresPlaybackRate = false; + + /** + * Boolean indicating whether the `Tech` supports the `progress` event. + * This will be used to determine if {@link Tech#manualProgressOn} should be called. + * + * @type {boolean} + * @default + */ + Tech.prototype.featuresProgressEvents = false; + + /** + * Boolean indicating whether the `Tech` supports the `sourceset` event. + * + * A tech should set this to `true` and then use {@link Tech#triggerSourceset} + * to trigger a {@link Tech#event:sourceset} at the earliest time after getting + * a new source. + * + * @type {boolean} + * @default + */ + Tech.prototype.featuresSourceset = false; + + /** + * Boolean indicating whether the `Tech` supports the `timeupdate` event. + * This will be used to determine if {@link Tech#manualTimeUpdates} should be called. + * + * @type {boolean} + * @default + */ + Tech.prototype.featuresTimeupdateEvents = false; + + /** + * Boolean indicating whether the `Tech` supports the native `TextTrack`s. + * This will help us integrate with native `TextTrack`s if the browser supports them. + * + * @type {boolean} + * @default + */ + Tech.prototype.featuresNativeTextTracks = false; + + /** + * Boolean indicating whether the `Tech` supports `requestVideoFrameCallback`. + * + * @type {boolean} + * @default + */ + Tech.prototype.featuresVideoFrameCallback = false; + + /** + * A functional mixin for techs that want to use the Source Handler pattern. + * Source handlers are scripts for handling specific formats. + * The source handler pattern is used for adaptive formats (HLS, DASH) that + * manually load video data and feed it into a Source Buffer (Media Source Extensions) + * Example: `Tech.withSourceHandlers.call(MyTech);` + * + * @param {Tech} _Tech + * The tech to add source handler functions to. + * + * @mixes Tech~SourceHandlerAdditions + */ + Tech.withSourceHandlers = function (_Tech) { + /** + * Register a source handler + * + * @param {Function} handler + * The source handler class + * + * @param {number} [index] + * Register it at the following index + */ + _Tech.registerSourceHandler = function (handler, index) { + let handlers = _Tech.sourceHandlers; + if (!handlers) { + handlers = _Tech.sourceHandlers = []; + } + if (index === undefined) { + // add to the end of the list + index = handlers.length; + } + handlers.splice(index, 0, handler); + }; + + /** + * Check if the tech can support the given type. Also checks the + * Techs sourceHandlers. + * + * @param {string} type + * The mimetype to check. + * + * @return {string} + * 'probably', 'maybe', or '' (empty string) + */ + _Tech.canPlayType = function (type) { + const handlers = _Tech.sourceHandlers || []; + let can; + for (let i = 0; i < handlers.length; i++) { + can = handlers[i].canPlayType(type); + if (can) { + return can; + } + } + return ''; + }; + + /** + * Returns the first source handler that supports the source. + * + * TODO: Answer question: should 'probably' be prioritized over 'maybe' + * + * @param {SourceObject} source + * The source object + * + * @param {Object} options + * The options passed to the tech + * + * @return {SourceHandler|null} + * The first source handler that supports the source or null if + * no SourceHandler supports the source + */ + _Tech.selectSourceHandler = function (source, options) { + const handlers = _Tech.sourceHandlers || []; + let can; + for (let i = 0; i < handlers.length; i++) { + can = handlers[i].canHandleSource(source, options); + if (can) { + return handlers[i]; + } + } + return null; + }; + + /** + * Check if the tech can support the given source. + * + * @param {SourceObject} srcObj + * The source object + * + * @param {Object} options + * The options passed to the tech + * + * @return {string} + * 'probably', 'maybe', or '' (empty string) + */ + _Tech.canPlaySource = function (srcObj, options) { + const sh = _Tech.selectSourceHandler(srcObj, options); + if (sh) { + return sh.canHandleSource(srcObj, options); + } + return ''; + }; + + /** + * When using a source handler, prefer its implementation of + * any function normally provided by the tech. + */ + const deferrable = ['seekable', 'seeking', 'duration']; + + /** + * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable + * function if it exists, with a fallback to the Techs seekable function. + * + * @method _Tech.seekable + */ + + /** + * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration + * function if it exists, otherwise it will fallback to the techs duration function. + * + * @method _Tech.duration + */ + + deferrable.forEach(function (fnName) { + const originalFn = this[fnName]; + if (typeof originalFn !== 'function') { + return; + } + this[fnName] = function () { + if (this.sourceHandler_ && this.sourceHandler_[fnName]) { + return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments); + } + return originalFn.apply(this, arguments); + }; + }, _Tech.prototype); + + /** + * Create a function for setting the source using a source object + * and source handlers. + * Should never be called unless a source handler was found. + * + * @param {SourceObject} source + * A source object with src and type keys + */ + _Tech.prototype.setSource = function (source) { + let sh = _Tech.selectSourceHandler(source, this.options_); + if (!sh) { + // Fall back to a native source handler when unsupported sources are + // deliberately set + if (_Tech.nativeSourceHandler) { + sh = _Tech.nativeSourceHandler; + } else { + log.error('No source handler found for the current source.'); + } + } + + // Dispose any existing source handler + this.disposeSourceHandler(); + this.off('dispose', this.disposeSourceHandler_); + if (sh !== _Tech.nativeSourceHandler) { + this.currentSource_ = source; + } + this.sourceHandler_ = sh.handleSource(source, this, this.options_); + this.one('dispose', this.disposeSourceHandler_); + }; + + /** + * Clean up any existing SourceHandlers and listeners when the Tech is disposed. + * + * @listens Tech#dispose + */ + _Tech.prototype.disposeSourceHandler = function () { + // if we have a source and get another one + // then we are loading something new + // than clear all of our current tracks + if (this.currentSource_) { + this.clearTracks(['audio', 'video']); + this.currentSource_ = null; + } + + // always clean up auto-text tracks + this.cleanupAutoTextTracks(); + if (this.sourceHandler_) { + if (this.sourceHandler_.dispose) { + this.sourceHandler_.dispose(); + } + this.sourceHandler_ = null; + } + }; + }; + + // The base Tech class needs to be registered as a Component. It is the only + // Tech that can be registered as a Component. + Component.registerComponent('Tech', Tech); + Tech.registerTech('Tech', Tech); + + /** + * A list of techs that should be added to techOrder on Players + * + * @private + */ + Tech.defaultTechOrder_ = []; + + /** + * @file middleware.js + * @module middleware + */ + const middlewares = {}; + const middlewareInstances = {}; + const TERMINATOR = {}; + + /** + * A middleware object is a plain JavaScript object that has methods that + * match the {@link Tech} methods found in the lists of allowed + * {@link module:middleware.allowedGetters|getters}, + * {@link module:middleware.allowedSetters|setters}, and + * {@link module:middleware.allowedMediators|mediators}. + * + * @typedef {Object} MiddlewareObject + */ + + /** + * A middleware factory function that should return a + * {@link module:middleware~MiddlewareObject|MiddlewareObject}. + * + * This factory will be called for each player when needed, with the player + * passed in as an argument. + * + * @callback MiddlewareFactory + * @param { import('../player').default } player + * A Video.js player. + */ + + /** + * Define a middleware that the player should use by way of a factory function + * that returns a middleware object. + * + * @param {string} type + * The MIME type to match or `"*"` for all MIME types. + * + * @param {MiddlewareFactory} middleware + * A middleware factory function that will be executed for + * matching types. + */ + function use(type, middleware) { + middlewares[type] = middlewares[type] || []; + middlewares[type].push(middleware); + } + + /** + * Asynchronously sets a source using middleware by recursing through any + * matching middlewares and calling `setSource` on each, passing along the + * previous returned value each time. + * + * @param { import('../player').default } player + * A {@link Player} instance. + * + * @param {Tech~SourceObject} src + * A source object. + * + * @param {Function} + * The next middleware to run. + */ + function setSource(player, src, next) { + player.setTimeout(() => setSourceHelper(src, middlewares[src.type], next, player), 1); + } + + /** + * When the tech is set, passes the tech to each middleware's `setTech` method. + * + * @param {Object[]} middleware + * An array of middleware instances. + * + * @param { import('../tech/tech').default } tech + * A Video.js tech. + */ + function setTech(middleware, tech) { + middleware.forEach(mw => mw.setTech && mw.setTech(tech)); + } + + /** + * Calls a getter on the tech first, through each middleware + * from right to left to the player. + * + * @param {Object[]} middleware + * An array of middleware instances. + * + * @param { import('../tech/tech').default } tech + * The current tech. + * + * @param {string} method + * A method name. + * + * @return {*} + * The final value from the tech after middleware has intercepted it. + */ + function get(middleware, tech, method) { + return middleware.reduceRight(middlewareIterator(method), tech[method]()); + } + + /** + * Takes the argument given to the player and calls the setter method on each + * middleware from left to right to the tech. + * + * @param {Object[]} middleware + * An array of middleware instances. + * + * @param { import('../tech/tech').default } tech + * The current tech. + * + * @param {string} method + * A method name. + * + * @param {*} arg + * The value to set on the tech. + * + * @return {*} + * The return value of the `method` of the `tech`. + */ + function set(middleware, tech, method, arg) { + return tech[method](middleware.reduce(middlewareIterator(method), arg)); + } + + /** + * Takes the argument given to the player and calls the `call` version of the + * method on each middleware from left to right. + * + * Then, call the passed in method on the tech and return the result unchanged + * back to the player, through middleware, this time from right to left. + * + * @param {Object[]} middleware + * An array of middleware instances. + * + * @param { import('../tech/tech').default } tech + * The current tech. + * + * @param {string} method + * A method name. + * + * @param {*} arg + * The value to set on the tech. + * + * @return {*} + * The return value of the `method` of the `tech`, regardless of the + * return values of middlewares. + */ + function mediate(middleware, tech, method, arg = null) { + const callMethod = 'call' + toTitleCase(method); + const middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg); + const terminated = middlewareValue === TERMINATOR; + // deprecated. The `null` return value should instead return TERMINATOR to + // prevent confusion if a techs method actually returns null. + const returnValue = terminated ? null : tech[method](middlewareValue); + executeRight(middleware, method, returnValue, terminated); + return returnValue; + } + + /** + * Enumeration of allowed getters where the keys are method names. + * + * @type {Object} + */ + const allowedGetters = { + buffered: 1, + currentTime: 1, + duration: 1, + muted: 1, + played: 1, + paused: 1, + seekable: 1, + volume: 1, + ended: 1 + }; + + /** + * Enumeration of allowed setters where the keys are method names. + * + * @type {Object} + */ + const allowedSetters = { + setCurrentTime: 1, + setMuted: 1, + setVolume: 1 + }; + + /** + * Enumeration of allowed mediators where the keys are method names. + * + * @type {Object} + */ + const allowedMediators = { + play: 1, + pause: 1 + }; + function middlewareIterator(method) { + return (value, mw) => { + // if the previous middleware terminated, pass along the termination + if (value === TERMINATOR) { + return TERMINATOR; + } + if (mw[method]) { + return mw[method](value); + } + return value; + }; + } + function executeRight(mws, method, value, terminated) { + for (let i = mws.length - 1; i >= 0; i--) { + const mw = mws[i]; + if (mw[method]) { + mw[method](terminated, value); + } + } + } + + /** + * Clear the middleware cache for a player. + * + * @param { import('../player').default } player + * A {@link Player} instance. + */ + function clearCacheForPlayer(player) { + middlewareInstances[player.id()] = null; + } + + /** + * { + * [playerId]: [[mwFactory, mwInstance], ...] + * } + * + * @private + */ + function getOrCreateFactory(player, mwFactory) { + const mws = middlewareInstances[player.id()]; + let mw = null; + if (mws === undefined || mws === null) { + mw = mwFactory(player); + middlewareInstances[player.id()] = [[mwFactory, mw]]; + return mw; + } + for (let i = 0; i < mws.length; i++) { + const [mwf, mwi] = mws[i]; + if (mwf !== mwFactory) { + continue; + } + mw = mwi; + } + if (mw === null) { + mw = mwFactory(player); + mws.push([mwFactory, mw]); + } + return mw; + } + function setSourceHelper(src = {}, middleware = [], next, player, acc = [], lastRun = false) { + const [mwFactory, ...mwrest] = middleware; + + // if mwFactory is a string, then we're at a fork in the road + if (typeof mwFactory === 'string') { + setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun); + + // if we have an mwFactory, call it with the player to get the mw, + // then call the mw's setSource method + } else if (mwFactory) { + const mw = getOrCreateFactory(player, mwFactory); + + // if setSource isn't present, implicitly select this middleware + if (!mw.setSource) { + acc.push(mw); + return setSourceHelper(src, mwrest, next, player, acc, lastRun); + } + mw.setSource(Object.assign({}, src), function (err, _src) { + // something happened, try the next middleware on the current level + // make sure to use the old src + if (err) { + return setSourceHelper(src, mwrest, next, player, acc, lastRun); + } + + // we've succeeded, now we need to go deeper + acc.push(mw); + + // if it's the same type, continue down the current chain + // otherwise, we want to go down the new chain + setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun); + }); + } else if (mwrest.length) { + setSourceHelper(src, mwrest, next, player, acc, lastRun); + } else if (lastRun) { + next(src, acc); + } else { + setSourceHelper(src, middlewares['*'], next, player, acc, true); + } + } + + /** + * Mimetypes + * + * @see https://www.iana.org/assignments/media-types/media-types.xhtml + * @typedef Mimetypes~Kind + * @enum + */ + const MimetypesKind = { + opus: 'video/ogg', + ogv: 'video/ogg', + mp4: 'video/mp4', + mov: 'video/mp4', + m4v: 'video/mp4', + mkv: 'video/x-matroska', + m4a: 'audio/mp4', + mp3: 'audio/mpeg', + aac: 'audio/aac', + caf: 'audio/x-caf', + flac: 'audio/flac', + oga: 'audio/ogg', + wav: 'audio/wav', + m3u8: 'application/x-mpegURL', + mpd: 'application/dash+xml', + jpg: 'image/jpeg', + jpeg: 'image/jpeg', + gif: 'image/gif', + png: 'image/png', + svg: 'image/svg+xml', + webp: 'image/webp' + }; + + /** + * Get the mimetype of a given src url if possible + * + * @param {string} src + * The url to the src + * + * @return {string} + * return the mimetype if it was known or empty string otherwise + */ + const getMimetype = function (src = '') { + const ext = getFileExtension(src); + const mimetype = MimetypesKind[ext.toLowerCase()]; + return mimetype || ''; + }; + + /** + * Find the mime type of a given source string if possible. Uses the player + * source cache. + * + * @param { import('../player').default } player + * The player object + * + * @param {string} src + * The source string + * + * @return {string} + * The type that was found + */ + const findMimetype = (player, src) => { + if (!src) { + return ''; + } + + // 1. check for the type in the `source` cache + if (player.cache_.source.src === src && player.cache_.source.type) { + return player.cache_.source.type; + } + + // 2. see if we have this source in our `currentSources` cache + const matchingSources = player.cache_.sources.filter(s => s.src === src); + if (matchingSources.length) { + return matchingSources[0].type; + } + + // 3. look for the src url in source elements and use the type there + const sources = player.$$('source'); + for (let i = 0; i < sources.length; i++) { + const s = sources[i]; + if (s.type && s.src && s.src === src) { + return s.type; + } + } + + // 4. finally fallback to our list of mime types based on src url extension + return getMimetype(src); + }; + + /** + * @module filter-source + */ + + /** + * Filter out single bad source objects or multiple source objects in an + * array. Also flattens nested source object arrays into a 1 dimensional + * array of source objects. + * + * @param {Tech~SourceObject|Tech~SourceObject[]} src + * The src object to filter + * + * @return {Tech~SourceObject[]} + * An array of sourceobjects containing only valid sources + * + * @private + */ + const filterSource = function (src) { + // traverse array + if (Array.isArray(src)) { + let newsrc = []; + src.forEach(function (srcobj) { + srcobj = filterSource(srcobj); + if (Array.isArray(srcobj)) { + newsrc = newsrc.concat(srcobj); + } else if (isObject(srcobj)) { + newsrc.push(srcobj); + } + }); + src = newsrc; + } else if (typeof src === 'string' && src.trim()) { + // convert string into object + src = [fixSource({ + src + })]; + } else if (isObject(src) && typeof src.src === 'string' && src.src && src.src.trim()) { + // src is already valid + src = [fixSource(src)]; + } else { + // invalid source, turn it into an empty array + src = []; + } + return src; + }; + + /** + * Checks src mimetype, adding it when possible + * + * @param {Tech~SourceObject} src + * The src object to check + * @return {Tech~SourceObject} + * src Object with known type + */ + function fixSource(src) { + if (!src.type) { + const mimetype = getMimetype(src.src); + if (mimetype) { + src.type = mimetype; + } + } + return src; + } + + var icons = "<svg xmlns=\"http://www.w3.org/2000/svg\">\n <defs>\n <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-play\">\n <path d=\"M16 10v28l22-14z\"></path>\n </symbol>\n <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-pause\">\n <path d=\"M12 38h8V10h-8v28zm16-28v28h8V10h-8z\"></path>\n </symbol>\n <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-audio\">\n <path d=\"M24 2C14.06 2 6 10.06 6 20v14c0 3.31 2.69 6 6 6h6V24h-8v-4c0-7.73 6.27-14 14-14s14 6.27 14 14v4h-8v16h6c3.31 0 6-2.69 6-6V20c0-9.94-8.06-18-18-18z\"></path>\n </symbol>\n <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-captions\">\n <path d=\"M38 8H10c-2.21 0-4 1.79-4 4v24c0 2.21 1.79 4 4 4h28c2.21 0 4-1.79 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super(player, options_, ready); + + // If there are no sources when the player is initialized, + // load the first supported playback technology. + + if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) { + for (let i = 0, j = options.playerOptions.techOrder; i < j.length; i++) { + const techName = toTitleCase(j[i]); + let tech = Tech.getTech(techName); + + // Support old behavior of techs being registered as components. + // Remove once that deprecated behavior is removed. + if (!techName) { + tech = Component.getComponent(techName); + } + + // Check if the browser supports this technology + if (tech && tech.isSupported()) { + player.loadTech_(techName); + break; + } + } + } else { + // Loop through playback technologies (e.g. HTML5) and check for support. + // Then load the best source. + // A few assumptions here: + // All playback technologies respect preload false. + player.src(options.playerOptions.sources); + } + } + } + Component.registerComponent('MediaLoader', MediaLoader); + + /** + * @file clickable-component.js + */ + + /** + * Component which is clickable or keyboard actionable, but is not a + * native HTML button. + * + * @extends Component + */ + class ClickableComponent extends Component { + /** + * Creates an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of component options. + * + * @param {function} [options.clickHandler] + * The function to call when the button is clicked / activated + * + * @param {string} [options.controlText] + * The text to set on the button + * + * @param {string} [options.className] + * A class or space separated list of classes to add the component + * + */ + constructor(player, options) { + super(player, options); + if (this.options_.controlText) { + this.controlText(this.options_.controlText); + } + this.handleMouseOver_ = e => this.handleMouseOver(e); + this.handleMouseOut_ = e => this.handleMouseOut(e); + this.handleClick_ = e => this.handleClick(e); + this.handleKeyDown_ = e => this.handleKeyDown(e); + this.emitTapEvents(); + this.enable(); + } + + /** + * Create the `ClickableComponent`s DOM element. + * + * @param {string} [tag=div] + * The element's node type. + * + * @param {Object} [props={}] + * An object of properties that should be set on the element. + * + * @param {Object} [attributes={}] + * An object of attributes that should be set on the element. + * + * @return {Element} + * The element that gets created. + */ + createEl(tag = 'div', props = {}, attributes = {}) { + props = Object.assign({ + className: this.buildCSSClass(), + tabIndex: 0 + }, props); + if (tag === 'button') { + log.error(`Creating a ClickableComponent with an HTML element of ${tag} is not supported; use a Button instead.`); + } + + // Add ARIA attributes for clickable element which is not a native HTML button + attributes = Object.assign({ + role: 'button' + }, attributes); + this.tabIndex_ = props.tabIndex; + const el = createEl(tag, props, attributes); + if (!this.player_.options_.experimentalSvgIcons) { + el.appendChild(createEl('span', { + className: 'vjs-icon-placeholder' + }, { + 'aria-hidden': true + })); + } + this.createControlTextEl(el); + return el; + } + dispose() { + // remove controlTextEl_ on dispose + this.controlTextEl_ = null; + super.dispose(); + } + + /** + * Create a control text element on this `ClickableComponent` + * + * @param {Element} [el] + * Parent element for the control text. + * + * @return {Element} + * The control text element that gets created. + */ + createControlTextEl(el) { + this.controlTextEl_ = createEl('span', { + className: 'vjs-control-text' + }, { + // let the screen reader user know that the text of the element may change + 'aria-live': 'polite' + }); + if (el) { + el.appendChild(this.controlTextEl_); + } + this.controlText(this.controlText_, el); + return this.controlTextEl_; + } + + /** + * Get or set the localize text to use for the controls on the `ClickableComponent`. + * + * @param {string} [text] + * Control text for element. + * + * @param {Element} [el=this.el()] + * Element to set the title on. + * + * @return {string} + * - The control text when getting + */ + controlText(text, el = this.el()) { + if (text === undefined) { + return this.controlText_ || 'Need Text'; + } + const localizedText = this.localize(text); + + /** @protected */ + this.controlText_ = text; + textContent(this.controlTextEl_, localizedText); + if (!this.nonIconControl && !this.player_.options_.noUITitleAttributes) { + // Set title attribute if only an icon is shown + el.setAttribute('title', localizedText); + } + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-control vjs-button ${super.buildCSSClass()}`; + } + + /** + * Enable this `ClickableComponent` + */ + enable() { + if (!this.enabled_) { + this.enabled_ = true; + this.removeClass('vjs-disabled'); + this.el_.setAttribute('aria-disabled', 'false'); + if (typeof this.tabIndex_ !== 'undefined') { + this.el_.setAttribute('tabIndex', this.tabIndex_); + } + this.on(['tap', 'click'], this.handleClick_); + this.on('keydown', this.handleKeyDown_); + } + } + + /** + * Disable this `ClickableComponent` + */ + disable() { + this.enabled_ = false; + this.addClass('vjs-disabled'); + this.el_.setAttribute('aria-disabled', 'true'); + if (typeof this.tabIndex_ !== 'undefined') { + this.el_.removeAttribute('tabIndex'); + } + this.off('mouseover', this.handleMouseOver_); + this.off('mouseout', this.handleMouseOut_); + this.off(['tap', 'click'], this.handleClick_); + this.off('keydown', this.handleKeyDown_); + } + + /** + * Handles language change in ClickableComponent for the player in components + * + * + */ + handleLanguagechange() { + this.controlText(this.controlText_); + } + + /** + * Event handler that is called when a `ClickableComponent` receives a + * `click` or `tap` event. + * + * @param {Event} event + * The `tap` or `click` event that caused this function to be called. + * + * @listens tap + * @listens click + * @abstract + */ + handleClick(event) { + if (this.options_.clickHandler) { + this.options_.clickHandler.call(this, arguments); + } + } + + /** + * Event handler that is called when a `ClickableComponent` receives a + * `keydown` event. + * + * By default, if the key is Space or Enter, it will trigger a `click` event. + * + * @param {KeyboardEvent} event + * The `keydown` event that caused this function to be called. + * + * @listens keydown + */ + handleKeyDown(event) { + // Support Space or Enter key operation to fire a click event. Also, + // prevent the event from propagating through the DOM and triggering + // Player hotkeys. + if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) { + event.preventDefault(); + event.stopPropagation(); + this.trigger('click'); + } else { + // Pass keypress handling up for unsupported keys + super.handleKeyDown(event); + } + } + } + Component.registerComponent('ClickableComponent', ClickableComponent); + + /** + * @file poster-image.js + */ + + /** + * A `ClickableComponent` that handles showing the poster image for the player. + * + * @extends ClickableComponent + */ + class PosterImage extends ClickableComponent { + /** + * Create an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should attach to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.update(); + this.update_ = e => this.update(e); + player.on('posterchange', this.update_); + } + + /** + * Clean up and dispose of the `PosterImage`. + */ + dispose() { + this.player().off('posterchange', this.update_); + super.dispose(); + } + + /** + * Create the `PosterImage`s DOM element. + * + * @return {Element} + * The element that gets created. + */ + createEl() { + // The el is an empty div to keep position in the DOM + // A picture and img el will be inserted when a source is set + return createEl('div', { + className: 'vjs-poster' + }); + } + + /** + * Get or set the `PosterImage`'s crossOrigin option. + * + * @param {string|null} [value] + * The value to set the crossOrigin to. If an argument is + * given, must be one of `'anonymous'` or `'use-credentials'`, or 'null'. + * + * @return {string|null} + * - The current crossOrigin value of the `Player` when getting. + * - undefined when setting + */ + crossOrigin(value) { + // `null` can be set to unset a value + if (typeof value === 'undefined') { + if (this.$('img')) { + // If the poster's element exists, give its value + return this.$('img').crossOrigin; + } else if (this.player_.tech_ && this.player_.tech_.isReady_) { + // If not but the tech is ready, query the tech + return this.player_.crossOrigin(); + } + // Otherwise check options as the poster is usually set before the state of crossorigin + // can be retrieved by the getter + return this.player_.options_.crossOrigin || this.player_.options_.crossorigin || null; + } + if (value !== null && value !== 'anonymous' && value !== 'use-credentials') { + this.player_.log.warn(`crossOrigin must be null, "anonymous" or "use-credentials", given "${value}"`); + return; + } + if (this.$('img')) { + this.$('img').crossOrigin = value; + } + return; + } + + /** + * An {@link EventTarget~EventListener} for {@link Player#posterchange} events. + * + * @listens Player#posterchange + * + * @param {Event} [event] + * The `Player#posterchange` event that triggered this function. + */ + update(event) { + const url = this.player().poster(); + this.setSrc(url); + + // If there's no poster source we should display:none on this component + // so it's not still clickable or right-clickable + if (url) { + this.show(); + } else { + this.hide(); + } + } + + /** + * Set the source of the `PosterImage` depending on the display method. (Re)creates + * the inner picture and img elementss when needed. + * + * @param {string} [url] + * The URL to the source for the `PosterImage`. If not specified or falsy, + * any source and ant inner picture/img are removed. + */ + setSrc(url) { + if (!url) { + this.el_.textContent = ''; + return; + } + if (!this.$('img')) { + this.el_.appendChild(createEl('picture', { + className: 'vjs-poster', + // Don't want poster to be tabbable. + tabIndex: -1 + }, {}, createEl('img', { + loading: 'lazy', + crossOrigin: this.crossOrigin() + }, { + alt: '' + }))); + } + this.$('img').src = url; + } + + /** + * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See + * {@link ClickableComponent#handleClick} for instances where this will be triggered. + * + * @listens tap + * @listens click + * @listens keydown + * + * @param {Event} event + + The `click`, `tap` or `keydown` event that caused this function to be called. + */ + handleClick(event) { + // We don't want a click to trigger playback when controls are disabled + if (!this.player_.controls()) { + return; + } + if (this.player_.tech(true)) { + this.player_.tech(true).focus(); + } + if (this.player_.paused()) { + silencePromise(this.player_.play()); + } else { + this.player_.pause(); + } + } + } + + /** + * Get or set the `PosterImage`'s crossorigin option. For the HTML5 player, this + * sets the `crossOrigin` property on the `<img>` tag to control the CORS + * behavior. + * + * @param {string|null} [value] + * The value to set the `PosterImages`'s crossorigin to. If an argument is + * given, must be one of `anonymous` or `use-credentials`. + * + * @return {string|null|undefined} + * - The current crossorigin value of the `Player` when getting. + * - undefined when setting + */ + PosterImage.prototype.crossorigin = PosterImage.prototype.crossOrigin; + Component.registerComponent('PosterImage', PosterImage); + + /** + * @file text-track-display.js + */ + const darkGray = '#222'; + const lightGray = '#ccc'; + const fontMap = { + monospace: 'monospace', + sansSerif: 'sans-serif', + serif: 'serif', + monospaceSansSerif: '"Andale Mono", "Lucida Console", monospace', + monospaceSerif: '"Courier New", monospace', + proportionalSansSerif: 'sans-serif', + proportionalSerif: 'serif', + casual: '"Comic Sans MS", Impact, fantasy', + script: '"Monotype Corsiva", cursive', + smallcaps: '"Andale Mono", "Lucida Console", monospace, sans-serif' + }; + + /** + * Construct an rgba color from a given hex color code. + * + * @param {number} color + * Hex number for color, like #f0e or #f604e2. + * + * @param {number} opacity + * Value for opacity, 0.0 - 1.0. + * + * @return {string} + * The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'. + */ + function constructColor(color, opacity) { + let hex; + if (color.length === 4) { + // color looks like "#f0e" + hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3]; + } else if (color.length === 7) { + // color looks like "#f604e2" + hex = color.slice(1); + } else { + throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.'); + } + return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')'; + } + + /** + * Try to update the style of a DOM element. Some style changes will throw an error, + * particularly in IE8. Those should be noops. + * + * @param {Element} el + * The DOM element to be styled. + * + * @param {string} style + * The CSS property on the element that should be styled. + * + * @param {string} rule + * The style rule that should be applied to the property. + * + * @private + */ + function tryUpdateStyle(el, style, rule) { + try { + el.style[style] = rule; + } catch (e) { + // Satisfies linter. + return; + } + } + + /** + * Converts the CSS top/right/bottom/left property numeric value to string in pixels. + * + * @param {number} position + * The CSS top/right/bottom/left property value. + * + * @return {string} + * The CSS property value that was created, like '10px'. + * + * @private + */ + function getCSSPositionValue(position) { + return position ? `${position}px` : ''; + } + + /** + * The component for displaying text track cues. + * + * @extends Component + */ + class TextTrackDisplay extends Component { + /** + * Creates an instance of this class. + * + * @param { import('../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @param {Function} [ready] + * The function to call when `TextTrackDisplay` is ready. + */ + constructor(player, options, ready) { + super(player, options, ready); + const updateDisplayTextHandler = e => this.updateDisplay(e); + const updateDisplayHandler = e => { + this.updateDisplayOverlay(); + this.updateDisplay(e); + }; + player.on('loadstart', e => this.toggleDisplay(e)); + player.on('texttrackchange', updateDisplayTextHandler); + player.on('loadedmetadata', e => { + this.updateDisplayOverlay(); + this.preselectTrack(e); + }); + + // This used to be called during player init, but was causing an error + // if a track should show by default and the display hadn't loaded yet. + // Should probably be moved to an external track loader when we support + // tracks that don't need a display. + player.ready(bind_(this, function () { + if (player.tech_ && player.tech_.featuresNativeTextTracks) { + this.hide(); + return; + } + player.on('fullscreenchange', updateDisplayHandler); + player.on('playerresize', updateDisplayHandler); + const screenOrientation = window.screen.orientation || window; + const changeOrientationEvent = window.screen.orientation ? 'change' : 'orientationchange'; + screenOrientation.addEventListener(changeOrientationEvent, updateDisplayHandler); + player.on('dispose', () => screenOrientation.removeEventListener(changeOrientationEvent, updateDisplayHandler)); + const tracks = this.options_.playerOptions.tracks || []; + for (let i = 0; i < tracks.length; i++) { + this.player_.addRemoteTextTrack(tracks[i], true); + } + this.preselectTrack(); + })); + } + + /** + * Preselect a track following this precedence: + * - matches the previously selected {@link TextTrack}'s language and kind + * - matches the previously selected {@link TextTrack}'s language only + * - is the first default captions track + * - is the first default descriptions track + * + * @listens Player#loadstart + */ + preselectTrack() { + const modes = { + captions: 1, + subtitles: 1 + }; + const trackList = this.player_.textTracks(); + const userPref = this.player_.cache_.selectedLanguage; + let firstDesc; + let firstCaptions; + let preferredTrack; + for (let i = 0; i < trackList.length; i++) { + const track = trackList[i]; + if (userPref && userPref.enabled && userPref.language && userPref.language === track.language && track.kind in modes) { + // Always choose the track that matches both language and kind + if (track.kind === userPref.kind) { + preferredTrack = track; + // or choose the first track that matches language + } else if (!preferredTrack) { + preferredTrack = track; + } + + // clear everything if offTextTrackMenuItem was clicked + } else if (userPref && !userPref.enabled) { + preferredTrack = null; + firstDesc = null; + firstCaptions = null; + } else if (track.default) { + if (track.kind === 'descriptions' && !firstDesc) { + firstDesc = track; + } else if (track.kind in modes && !firstCaptions) { + firstCaptions = track; + } + } + } + + // The preferredTrack matches the user preference and takes + // precedence over all the other tracks. + // So, display the preferredTrack before the first default track + // and the subtitles/captions track before the descriptions track + if (preferredTrack) { + preferredTrack.mode = 'showing'; + } else if (firstCaptions) { + firstCaptions.mode = 'showing'; + } else if (firstDesc) { + firstDesc.mode = 'showing'; + } + } + + /** + * Turn display of {@link TextTrack}'s from the current state into the other state. + * There are only two states: + * - 'shown' + * - 'hidden' + * + * @listens Player#loadstart + */ + toggleDisplay() { + if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) { + this.hide(); + } else { + this.show(); + } + } + + /** + * Create the {@link Component}'s DOM element. + * + * @return {Element} + * The element that was created. + */ + createEl() { + return super.createEl('div', { + className: 'vjs-text-track-display' + }, { + 'translate': 'yes', + 'aria-live': 'off', + 'aria-atomic': 'true' + }); + } + + /** + * Clear all displayed {@link TextTrack}s. + */ + clearDisplay() { + if (typeof window.WebVTT === 'function') { + window.WebVTT.processCues(window, [], this.el_); + } + } + + /** + * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or + * a {@link Player#fullscreenchange} is fired. + * + * @listens Player#texttrackchange + * @listens Player#fullscreenchange + */ + updateDisplay() { + const tracks = this.player_.textTracks(); + const allowMultipleShowingTracks = this.options_.allowMultipleShowingTracks; + this.clearDisplay(); + if (allowMultipleShowingTracks) { + const showingTracks = []; + for (let i = 0; i < tracks.length; ++i) { + const track = tracks[i]; + if (track.mode !== 'showing') { + continue; + } + showingTracks.push(track); + } + this.updateForTrack(showingTracks); + return; + } + + // Track display prioritization model: if multiple tracks are 'showing', + // display the first 'subtitles' or 'captions' track which is 'showing', + // otherwise display the first 'descriptions' track which is 'showing' + + let descriptionsTrack = null; + let captionsSubtitlesTrack = null; + let i = tracks.length; + while (i--) { + const track = tracks[i]; + if (track.mode === 'showing') { + if (track.kind === 'descriptions') { + descriptionsTrack = track; + } else { + captionsSubtitlesTrack = track; + } + } + } + if (captionsSubtitlesTrack) { + if (this.getAttribute('aria-live') !== 'off') { + this.setAttribute('aria-live', 'off'); + } + this.updateForTrack(captionsSubtitlesTrack); + } else if (descriptionsTrack) { + if (this.getAttribute('aria-live') !== 'assertive') { + this.setAttribute('aria-live', 'assertive'); + } + this.updateForTrack(descriptionsTrack); + } + } + + /** + * Updates the displayed TextTrack to be sure it overlays the video when a either + * a {@link Player#texttrackchange} or a {@link Player#fullscreenchange} is fired. + */ + updateDisplayOverlay() { + // inset-inline and inset-block are not supprted on old chrome, but these are + // only likely to be used on TV devices + if (!this.player_.videoHeight() || !window.CSS.supports('inset-inline: 10px')) { + return; + } + const playerWidth = this.player_.currentWidth(); + const playerHeight = this.player_.currentHeight(); + const playerAspectRatio = playerWidth / playerHeight; + const videoAspectRatio = this.player_.videoWidth() / this.player_.videoHeight(); + let insetInlineMatch = 0; + let insetBlockMatch = 0; + if (Math.abs(playerAspectRatio - videoAspectRatio) > 0.1) { + if (playerAspectRatio > videoAspectRatio) { + insetInlineMatch = Math.round((playerWidth - playerHeight * videoAspectRatio) / 2); + } else { + insetBlockMatch = Math.round((playerHeight - playerWidth / videoAspectRatio) / 2); + } + } + tryUpdateStyle(this.el_, 'insetInline', getCSSPositionValue(insetInlineMatch)); + tryUpdateStyle(this.el_, 'insetBlock', getCSSPositionValue(insetBlockMatch)); + } + + /** + * Style {@Link TextTrack} activeCues according to {@Link TextTrackSettings}. + * + * @param {TextTrack} track + * Text track object containing active cues to style. + */ + updateDisplayState(track) { + const overrides = this.player_.textTrackSettings.getValues(); + const cues = track.activeCues; + let i = cues.length; + while (i--) { + const cue = cues[i]; + if (!cue) { + continue; + } + const cueDiv = cue.displayState; + if (overrides.color) { + cueDiv.firstChild.style.color = overrides.color; + } + if (overrides.textOpacity) { + tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity)); + } + if (overrides.backgroundColor) { + cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor; + } + if (overrides.backgroundOpacity) { + tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity)); + } + if (overrides.windowColor) { + if (overrides.windowOpacity) { + tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity)); + } else { + cueDiv.style.backgroundColor = overrides.windowColor; + } + } + if (overrides.edgeStyle) { + if (overrides.edgeStyle === 'dropshadow') { + cueDiv.firstChild.style.textShadow = `2px 2px 3px ${darkGray}, 2px 2px 4px ${darkGray}, 2px 2px 5px ${darkGray}`; + } else if (overrides.edgeStyle === 'raised') { + cueDiv.firstChild.style.textShadow = `1px 1px ${darkGray}, 2px 2px ${darkGray}, 3px 3px ${darkGray}`; + } else if (overrides.edgeStyle === 'depressed') { + cueDiv.firstChild.style.textShadow = `1px 1px ${lightGray}, 0 1px ${lightGray}, -1px -1px ${darkGray}, 0 -1px ${darkGray}`; + } else if (overrides.edgeStyle === 'uniform') { + cueDiv.firstChild.style.textShadow = `0 0 4px ${darkGray}, 0 0 4px ${darkGray}, 0 0 4px ${darkGray}, 0 0 4px ${darkGray}`; + } + } + if (overrides.fontPercent && overrides.fontPercent !== 1) { + const fontSize = window.parseFloat(cueDiv.style.fontSize); + cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px'; + cueDiv.style.height = 'auto'; + cueDiv.style.top = 'auto'; + } + if (overrides.fontFamily && overrides.fontFamily !== 'default') { + if (overrides.fontFamily === 'small-caps') { + cueDiv.firstChild.style.fontVariant = 'small-caps'; + } else { + cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily]; + } + } + } + } + + /** + * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}. + * + * @param {TextTrack|TextTrack[]} tracks + * Text track object or text track array to be added to the list. + */ + updateForTrack(tracks) { + if (!Array.isArray(tracks)) { + tracks = [tracks]; + } + if (typeof window.WebVTT !== 'function' || tracks.every(track => { + return !track.activeCues; + })) { + return; + } + const cues = []; + + // push all active track cues + for (let i = 0; i < tracks.length; ++i) { + const track = tracks[i]; + for (let j = 0; j < track.activeCues.length; ++j) { + cues.push(track.activeCues[j]); + } + } + + // removes all cues before it processes new ones + window.WebVTT.processCues(window, cues, this.el_); + + // add unique class to each language text track & add settings styling if necessary + for (let i = 0; i < tracks.length; ++i) { + const track = tracks[i]; + for (let j = 0; j < track.activeCues.length; ++j) { + const cueEl = track.activeCues[j].displayState; + addClass(cueEl, 'vjs-text-track-cue', 'vjs-text-track-cue-' + (track.language ? track.language : i)); + if (track.language) { + setAttribute(cueEl, 'lang', track.language); + } + } + if (this.player_.textTrackSettings) { + this.updateDisplayState(track); + } + } + } + } + Component.registerComponent('TextTrackDisplay', TextTrackDisplay); + + /** + * @file loading-spinner.js + */ + + /** + * A loading spinner for use during waiting/loading events. + * + * @extends Component + */ + class LoadingSpinner extends Component { + /** + * Create the `LoadingSpinner`s DOM element. + * + * @return {Element} + * The dom element that gets created. + */ + createEl() { + const isAudio = this.player_.isAudio(); + const playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player'); + const controlText = createEl('span', { + className: 'vjs-control-text', + textContent: this.localize('{1} is loading.', [playerType]) + }); + const el = super.createEl('div', { + className: 'vjs-loading-spinner', + dir: 'ltr' + }); + el.appendChild(controlText); + return el; + } + + /** + * Update control text on languagechange + */ + handleLanguagechange() { + this.$('.vjs-control-text').textContent = this.localize('{1} is loading.', [this.player_.isAudio() ? 'Audio Player' : 'Video Player']); + } + } + Component.registerComponent('LoadingSpinner', LoadingSpinner); + + /** + * @file button.js + */ + + /** + * Base class for all buttons. + * + * @extends ClickableComponent + */ + class Button extends ClickableComponent { + /** + * Create the `Button`s DOM element. + * + * @param {string} [tag="button"] + * The element's node type. This argument is IGNORED: no matter what + * is passed, it will always create a `button` element. + * + * @param {Object} [props={}] + * An object of properties that should be set on the element. + * + * @param {Object} [attributes={}] + * An object of attributes that should be set on the element. + * + * @return {Element} + * The element that gets created. + */ + createEl(tag, props = {}, attributes = {}) { + tag = 'button'; + props = Object.assign({ + className: this.buildCSSClass() + }, props); + + // Add attributes for button element + attributes = Object.assign({ + // Necessary since the default button type is "submit" + type: 'button' + }, attributes); + const el = createEl(tag, props, attributes); + if (!this.player_.options_.experimentalSvgIcons) { + el.appendChild(createEl('span', { + className: 'vjs-icon-placeholder' + }, { + 'aria-hidden': true + })); + } + this.createControlTextEl(el); + return el; + } + + /** + * Add a child `Component` inside of this `Button`. + * + * @param {string|Component} child + * The name or instance of a child to add. + * + * @param {Object} [options={}] + * The key/value store of options that will get passed to children of + * the child. + * + * @return {Component} + * The `Component` that gets added as a child. When using a string the + * `Component` will get created by this process. + * + * @deprecated since version 5 + */ + addChild(child, options = {}) { + const className = this.constructor.name; + log.warn(`Adding an actionable (user controllable) child to a Button (${className}) is not supported; use a ClickableComponent instead.`); + + // Avoid the error message generated by ClickableComponent's addChild method + return Component.prototype.addChild.call(this, child, options); + } + + /** + * Enable the `Button` element so that it can be activated or clicked. Use this with + * {@link Button#disable}. + */ + enable() { + super.enable(); + this.el_.removeAttribute('disabled'); + } + + /** + * Disable the `Button` element so that it cannot be activated or clicked. Use this with + * {@link Button#enable}. + */ + disable() { + super.disable(); + this.el_.setAttribute('disabled', 'disabled'); + } + + /** + * This gets called when a `Button` has focus and `keydown` is triggered via a key + * press. + * + * @param {KeyboardEvent} event + * The event that caused this function to get called. + * + * @listens keydown + */ + handleKeyDown(event) { + // Ignore Space or Enter key operation, which is handled by the browser for + // a button - though not for its super class, ClickableComponent. Also, + // prevent the event from propagating through the DOM and triggering Player + // hotkeys. We do not preventDefault here because we _want_ the browser to + // handle it. + if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) { + event.stopPropagation(); + return; + } + + // Pass keypress handling up for unsupported keys + super.handleKeyDown(event); + } + } + Component.registerComponent('Button', Button); + + /** + * @file big-play-button.js + */ + + /** + * The initial play button that shows before the video has played. The hiding of the + * `BigPlayButton` get done via CSS and `Player` states. + * + * @extends Button + */ + class BigPlayButton extends Button { + constructor(player, options) { + super(player, options); + this.mouseused_ = false; + this.setIcon('play'); + this.on('mousedown', e => this.handleMouseDown(e)); + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. Always returns 'vjs-big-play-button'. + */ + buildCSSClass() { + return 'vjs-big-play-button'; + } + + /** + * This gets called when a `BigPlayButton` "clicked". See {@link ClickableComponent} + * for more detailed information on what a click can be. + * + * @param {KeyboardEvent|MouseEvent|TouchEvent} event + * The `keydown`, `tap`, or `click` event that caused this function to be + * called. + * + * @listens tap + * @listens click + */ + handleClick(event) { + const playPromise = this.player_.play(); + + // exit early if clicked via the mouse + if (this.mouseused_ && 'clientX' in event && 'clientY' in event) { + silencePromise(playPromise); + if (this.player_.tech(true)) { + this.player_.tech(true).focus(); + } + return; + } + const cb = this.player_.getChild('controlBar'); + const playToggle = cb && cb.getChild('playToggle'); + if (!playToggle) { + this.player_.tech(true).focus(); + return; + } + const playFocus = () => playToggle.focus(); + if (isPromise(playPromise)) { + playPromise.then(playFocus, () => {}); + } else { + this.setTimeout(playFocus, 1); + } + } + + /** + * Event handler that is called when a `BigPlayButton` receives a + * `keydown` event. + * + * @param {KeyboardEvent} event + * The `keydown` event that caused this function to be called. + * + * @listens keydown + */ + handleKeyDown(event) { + this.mouseused_ = false; + super.handleKeyDown(event); + } + + /** + * Handle `mousedown` events on the `BigPlayButton`. + * + * @param {MouseEvent} event + * `mousedown` or `touchstart` event that triggered this function + * + * @listens mousedown + */ + handleMouseDown(event) { + this.mouseused_ = true; + } + } + + /** + * The text that should display over the `BigPlayButton`s controls. Added to for localization. + * + * @type {string} + * @protected + */ + BigPlayButton.prototype.controlText_ = 'Play Video'; + Component.registerComponent('BigPlayButton', BigPlayButton); + + /** + * @file close-button.js + */ + + /** + * The `CloseButton` is a `{@link Button}` that fires a `close` event when + * it gets clicked. + * + * @extends Button + */ + class CloseButton extends Button { + /** + * Creates an instance of the this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.setIcon('cancel'); + this.controlText(options && options.controlText || this.localize('Close')); + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-close-button ${super.buildCSSClass()}`; + } + + /** + * This gets called when a `CloseButton` gets clicked. See + * {@link ClickableComponent#handleClick} for more information on when + * this will be triggered + * + * @param {Event} event + * The `keydown`, `tap`, or `click` event that caused this function to be + * called. + * + * @listens tap + * @listens click + * @fires CloseButton#close + */ + handleClick(event) { + /** + * Triggered when the a `CloseButton` is clicked. + * + * @event CloseButton#close + * @type {Event} + * + * @property {boolean} [bubbles=false] + * set to false so that the close event does not + * bubble up to parents if there is no listener + */ + this.trigger({ + type: 'close', + bubbles: false + }); + } + /** + * Event handler that is called when a `CloseButton` receives a + * `keydown` event. + * + * By default, if the key is Esc, it will trigger a `click` event. + * + * @param {KeyboardEvent} event + * The `keydown` event that caused this function to be called. + * + * @listens keydown + */ + handleKeyDown(event) { + // Esc button will trigger `click` event + if (keycode.isEventKey(event, 'Esc')) { + event.preventDefault(); + event.stopPropagation(); + this.trigger('click'); + } else { + // Pass keypress handling up for unsupported keys + super.handleKeyDown(event); + } + } + } + Component.registerComponent('CloseButton', CloseButton); + + /** + * @file play-toggle.js + */ + + /** + * Button to toggle between play and pause. + * + * @extends Button + */ + class PlayToggle extends Button { + /** + * Creates an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options={}] + * The key/value store of player options. + */ + constructor(player, options = {}) { + super(player, options); + + // show or hide replay icon + options.replay = options.replay === undefined || options.replay; + this.setIcon('play'); + this.on(player, 'play', e => this.handlePlay(e)); + this.on(player, 'pause', e => this.handlePause(e)); + if (options.replay) { + this.on(player, 'ended', e => this.handleEnded(e)); + } + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-play-control ${super.buildCSSClass()}`; + } + + /** + * This gets called when an `PlayToggle` is "clicked". See + * {@link ClickableComponent} for more detailed information on what a click can be. + * + * @param {Event} [event] + * The `keydown`, `tap`, or `click` event that caused this function to be + * called. + * + * @listens tap + * @listens click + */ + handleClick(event) { + if (this.player_.paused()) { + silencePromise(this.player_.play()); + } else { + this.player_.pause(); + } + } + + /** + * This gets called once after the video has ended and the user seeks so that + * we can change the replay button back to a play button. + * + * @param {Event} [event] + * The event that caused this function to run. + * + * @listens Player#seeked + */ + handleSeeked(event) { + this.removeClass('vjs-ended'); + if (this.player_.paused()) { + this.handlePause(event); + } else { + this.handlePlay(event); + } + } + + /** + * Add the vjs-playing class to the element so it can change appearance. + * + * @param {Event} [event] + * The event that caused this function to run. + * + * @listens Player#play + */ + handlePlay(event) { + this.removeClass('vjs-ended', 'vjs-paused'); + this.addClass('vjs-playing'); + // change the button text to "Pause" + this.setIcon('pause'); + this.controlText('Pause'); + } + + /** + * Add the vjs-paused class to the element so it can change appearance. + * + * @param {Event} [event] + * The event that caused this function to run. + * + * @listens Player#pause + */ + handlePause(event) { + this.removeClass('vjs-playing'); + this.addClass('vjs-paused'); + // change the button text to "Play" + this.setIcon('play'); + this.controlText('Play'); + } + + /** + * Add the vjs-ended class to the element so it can change appearance + * + * @param {Event} [event] + * The event that caused this function to run. + * + * @listens Player#ended + */ + handleEnded(event) { + this.removeClass('vjs-playing'); + this.addClass('vjs-ended'); + // change the button text to "Replay" + this.setIcon('replay'); + this.controlText('Replay'); + + // on the next seek remove the replay button + this.one(this.player_, 'seeked', e => this.handleSeeked(e)); + } + } + + /** + * The text that should display over the `PlayToggle`s controls. Added for localization. + * + * @type {string} + * @protected + */ + PlayToggle.prototype.controlText_ = 'Play'; + Component.registerComponent('PlayToggle', PlayToggle); + + /** + * @file time-display.js + */ + + /** + * Displays time information about the video + * + * @extends Component + */ + class TimeDisplay extends Component { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.on(player, ['timeupdate', 'ended', 'seeking'], e => this.update(e)); + this.updateTextNode_(); + } + + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + const className = this.buildCSSClass(); + const el = super.createEl('div', { + className: `${className} vjs-time-control vjs-control` + }); + const span = createEl('span', { + className: 'vjs-control-text', + textContent: `${this.localize(this.labelText_)}\u00a0` + }, { + role: 'presentation' + }); + el.appendChild(span); + this.contentEl_ = createEl('span', { + className: `${className}-display` + }, { + // span elements have no implicit role, but some screen readers (notably VoiceOver) + // treat them as a break between items in the DOM when using arrow keys + // (or left-to-right swipes on iOS) to read contents of a page. Using + // role='presentation' causes VoiceOver to NOT treat this span as a break. + role: 'presentation' + }); + el.appendChild(this.contentEl_); + return el; + } + dispose() { + this.contentEl_ = null; + this.textNode_ = null; + super.dispose(); + } + + /** + * Updates the displayed time according to the `updateContent` function which is defined in the child class. + * + * @param {Event} [event] + * The `timeupdate`, `ended` or `seeking` (if enableSmoothSeeking is true) event that caused this function to be called. + */ + update(event) { + if (!this.player_.options_.enableSmoothSeeking && event.type === 'seeking') { + return; + } + this.updateContent(event); + } + + /** + * Updates the time display text node with a new time + * + * @param {number} [time=0] the time to update to + * + * @private + */ + updateTextNode_(time = 0) { + time = formatTime(time); + if (this.formattedTime_ === time) { + return; + } + this.formattedTime_ = time; + this.requestNamedAnimationFrame('TimeDisplay#updateTextNode_', () => { + if (!this.contentEl_) { + return; + } + let oldNode = this.textNode_; + if (oldNode && this.contentEl_.firstChild !== oldNode) { + oldNode = null; + log.warn('TimeDisplay#updateTextnode_: Prevented replacement of text node element since it was no longer a child of this node. Appending a new node instead.'); + } + this.textNode_ = document.createTextNode(this.formattedTime_); + if (!this.textNode_) { + return; + } + if (oldNode) { + this.contentEl_.replaceChild(this.textNode_, oldNode); + } else { + this.contentEl_.appendChild(this.textNode_); + } + }); + } + + /** + * To be filled out in the child class, should update the displayed time + * in accordance with the fact that the current time has changed. + * + * @param {Event} [event] + * The `timeupdate` event that caused this to run. + * + * @listens Player#timeupdate + */ + updateContent(event) {} + } + + /** + * The text that is added to the `TimeDisplay` for screen reader users. + * + * @type {string} + * @private + */ + TimeDisplay.prototype.labelText_ = 'Time'; + + /** + * The text that should display over the `TimeDisplay`s controls. Added to for localization. + * + * @type {string} + * @protected + * + * @deprecated in v7; controlText_ is not used in non-active display Components + */ + TimeDisplay.prototype.controlText_ = 'Time'; + Component.registerComponent('TimeDisplay', TimeDisplay); + + /** + * @file current-time-display.js + */ + + /** + * Displays the current time + * + * @extends Component + */ + class CurrentTimeDisplay extends TimeDisplay { + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return 'vjs-current-time'; + } + + /** + * Update current time display + * + * @param {Event} [event] + * The `timeupdate` event that caused this function to run. + * + * @listens Player#timeupdate + */ + updateContent(event) { + // Allows for smooth scrubbing, when player can't keep up. + let time; + if (this.player_.ended()) { + time = this.player_.duration(); + } else { + time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime(); + } + this.updateTextNode_(time); + } + } + + /** + * The text that is added to the `CurrentTimeDisplay` for screen reader users. + * + * @type {string} + * @private + */ + CurrentTimeDisplay.prototype.labelText_ = 'Current Time'; + + /** + * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization. + * + * @type {string} + * @protected + * + * @deprecated in v7; controlText_ is not used in non-active display Components + */ + CurrentTimeDisplay.prototype.controlText_ = 'Current Time'; + Component.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay); + + /** + * @file duration-display.js + */ + + /** + * Displays the duration + * + * @extends Component + */ + class DurationDisplay extends TimeDisplay { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + const updateContent = e => this.updateContent(e); + + // we do not want to/need to throttle duration changes, + // as they should always display the changed duration as + // it has changed + this.on(player, 'durationchange', updateContent); + + // Listen to loadstart because the player duration is reset when a new media element is loaded, + // but the durationchange on the user agent will not fire. + // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm} + this.on(player, 'loadstart', updateContent); + + // Also listen for timeupdate (in the parent) and loadedmetadata because removing those + // listeners could have broken dependent applications/libraries. These + // can likely be removed for 7.0. + this.on(player, 'loadedmetadata', updateContent); + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return 'vjs-duration'; + } + + /** + * Update duration time display. + * + * @param {Event} [event] + * The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused + * this function to be called. + * + * @listens Player#durationchange + * @listens Player#timeupdate + * @listens Player#loadedmetadata + */ + updateContent(event) { + const duration = this.player_.duration(); + this.updateTextNode_(duration); + } + } + + /** + * The text that is added to the `DurationDisplay` for screen reader users. + * + * @type {string} + * @private + */ + DurationDisplay.prototype.labelText_ = 'Duration'; + + /** + * The text that should display over the `DurationDisplay`s controls. Added to for localization. + * + * @type {string} + * @protected + * + * @deprecated in v7; controlText_ is not used in non-active display Components + */ + DurationDisplay.prototype.controlText_ = 'Duration'; + Component.registerComponent('DurationDisplay', DurationDisplay); + + /** + * @file time-divider.js + */ + + /** + * The separator between the current time and duration. + * Can be hidden if it's not needed in the design. + * + * @extends Component + */ + class TimeDivider extends Component { + /** + * Create the component's DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + const el = super.createEl('div', { + className: 'vjs-time-control vjs-time-divider' + }, { + // this element and its contents can be hidden from assistive techs since + // it is made extraneous by the announcement of the control text + // for the current time and duration displays + 'aria-hidden': true + }); + const div = super.createEl('div'); + const span = super.createEl('span', { + textContent: '/' + }); + div.appendChild(span); + el.appendChild(div); + return el; + } + } + Component.registerComponent('TimeDivider', TimeDivider); + + /** + * @file remaining-time-display.js + */ + + /** + * Displays the time left in the video + * + * @extends Component + */ + class RemainingTimeDisplay extends TimeDisplay { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.on(player, 'durationchange', e => this.updateContent(e)); + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return 'vjs-remaining-time'; + } + + /** + * Create the `Component`'s DOM element with the "minus" character prepend to the time + * + * @return {Element} + * The element that was created. + */ + createEl() { + const el = super.createEl(); + if (this.options_.displayNegative !== false) { + el.insertBefore(createEl('span', {}, { + 'aria-hidden': true + }, '-'), this.contentEl_); + } + return el; + } + + /** + * Update remaining time display. + * + * @param {Event} [event] + * The `timeupdate` or `durationchange` event that caused this to run. + * + * @listens Player#timeupdate + * @listens Player#durationchange + */ + updateContent(event) { + if (typeof this.player_.duration() !== 'number') { + return; + } + let time; + + // @deprecated We should only use remainingTimeDisplay + // as of video.js 7 + if (this.player_.ended()) { + time = 0; + } else if (this.player_.remainingTimeDisplay) { + time = this.player_.remainingTimeDisplay(); + } else { + time = this.player_.remainingTime(); + } + this.updateTextNode_(time); + } + } + + /** + * The text that is added to the `RemainingTimeDisplay` for screen reader users. + * + * @type {string} + * @private + */ + RemainingTimeDisplay.prototype.labelText_ = 'Remaining Time'; + + /** + * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization. + * + * @type {string} + * @protected + * + * @deprecated in v7; controlText_ is not used in non-active display Components + */ + RemainingTimeDisplay.prototype.controlText_ = 'Remaining Time'; + Component.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay); + + /** + * @file live-display.js + */ + + // TODO - Future make it click to snap to live + + /** + * Displays the live indicator when duration is Infinity. + * + * @extends Component + */ + class LiveDisplay extends Component { + /** + * Creates an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.updateShowing(); + this.on(this.player(), 'durationchange', e => this.updateShowing(e)); + } + + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + const el = super.createEl('div', { + className: 'vjs-live-control vjs-control' + }); + this.contentEl_ = createEl('div', { + className: 'vjs-live-display' + }, { + 'aria-live': 'off' + }); + this.contentEl_.appendChild(createEl('span', { + className: 'vjs-control-text', + textContent: `${this.localize('Stream Type')}\u00a0` + })); + this.contentEl_.appendChild(document.createTextNode(this.localize('LIVE'))); + el.appendChild(this.contentEl_); + return el; + } + dispose() { + this.contentEl_ = null; + super.dispose(); + } + + /** + * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide + * it accordingly + * + * @param {Event} [event] + * The {@link Player#durationchange} event that caused this function to run. + * + * @listens Player#durationchange + */ + updateShowing(event) { + if (this.player().duration() === Infinity) { + this.show(); + } else { + this.hide(); + } + } + } + Component.registerComponent('LiveDisplay', LiveDisplay); + + /** + * @file seek-to-live.js + */ + + /** + * Displays the live indicator when duration is Infinity. + * + * @extends Component + */ + class SeekToLive extends Button { + /** + * Creates an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.updateLiveEdgeStatus(); + if (this.player_.liveTracker) { + this.updateLiveEdgeStatusHandler_ = e => this.updateLiveEdgeStatus(e); + this.on(this.player_.liveTracker, 'liveedgechange', this.updateLiveEdgeStatusHandler_); + } + } + + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + const el = super.createEl('button', { + className: 'vjs-seek-to-live-control vjs-control' + }); + this.setIcon('circle', el); + this.textEl_ = createEl('span', { + className: 'vjs-seek-to-live-text', + textContent: this.localize('LIVE') + }, { + 'aria-hidden': 'true' + }); + el.appendChild(this.textEl_); + return el; + } + + /** + * Update the state of this button if we are at the live edge + * or not + */ + updateLiveEdgeStatus() { + // default to live edge + if (!this.player_.liveTracker || this.player_.liveTracker.atLiveEdge()) { + this.setAttribute('aria-disabled', true); + this.addClass('vjs-at-live-edge'); + this.controlText('Seek to live, currently playing live'); + } else { + this.setAttribute('aria-disabled', false); + this.removeClass('vjs-at-live-edge'); + this.controlText('Seek to live, currently behind live'); + } + } + + /** + * On click bring us as near to the live point as possible. + * This requires that we wait for the next `live-seekable-change` + * event which will happen every segment length seconds. + */ + handleClick() { + this.player_.liveTracker.seekToLiveEdge(); + } + + /** + * Dispose of the element and stop tracking + */ + dispose() { + if (this.player_.liveTracker) { + this.off(this.player_.liveTracker, 'liveedgechange', this.updateLiveEdgeStatusHandler_); + } + this.textEl_ = null; + super.dispose(); + } + } + /** + * The text that should display over the `SeekToLive`s control. Added for localization. + * + * @type {string} + * @protected + */ + SeekToLive.prototype.controlText_ = 'Seek to live, currently playing live'; + Component.registerComponent('SeekToLive', SeekToLive); + + /** + * @file num.js + * @module num + */ + + /** + * Keep a number between a min and a max value + * + * @param {number} number + * The number to clamp + * + * @param {number} min + * The minimum value + * @param {number} max + * The maximum value + * + * @return {number} + * the clamped number + */ + function clamp(number, min, max) { + number = Number(number); + return Math.min(max, Math.max(min, isNaN(number) ? min : number)); + } + + var Num = /*#__PURE__*/Object.freeze({ + __proto__: null, + clamp: clamp + }); + + /** + * @file slider.js + */ + + /** + * The base functionality for a slider. Can be vertical or horizontal. + * For instance the volume bar or the seek bar on a video is a slider. + * + * @extends Component + */ + class Slider extends Component { + /** + * Create an instance of this class + * + * @param { import('../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.handleMouseDown_ = e => this.handleMouseDown(e); + this.handleMouseUp_ = e => this.handleMouseUp(e); + this.handleKeyDown_ = e => this.handleKeyDown(e); + this.handleClick_ = e => this.handleClick(e); + this.handleMouseMove_ = e => this.handleMouseMove(e); + this.update_ = e => this.update(e); + + // Set property names to bar to match with the child Slider class is looking for + this.bar = this.getChild(this.options_.barName); + + // Set a horizontal or vertical class on the slider depending on the slider type + this.vertical(!!this.options_.vertical); + this.enable(); + } + + /** + * Are controls are currently enabled for this slider or not. + * + * @return {boolean} + * true if controls are enabled, false otherwise + */ + enabled() { + return this.enabled_; + } + + /** + * Enable controls for this slider if they are disabled + */ + enable() { + if (this.enabled()) { + return; + } + this.on('mousedown', this.handleMouseDown_); + this.on('touchstart', this.handleMouseDown_); + this.on('keydown', this.handleKeyDown_); + this.on('click', this.handleClick_); + + // TODO: deprecated, controlsvisible does not seem to be fired + this.on(this.player_, 'controlsvisible', this.update); + if (this.playerEvent) { + this.on(this.player_, this.playerEvent, this.update); + } + this.removeClass('disabled'); + this.setAttribute('tabindex', 0); + this.enabled_ = true; + } + + /** + * Disable controls for this slider if they are enabled + */ + disable() { + if (!this.enabled()) { + return; + } + const doc = this.bar.el_.ownerDocument; + this.off('mousedown', this.handleMouseDown_); + this.off('touchstart', this.handleMouseDown_); + this.off('keydown', this.handleKeyDown_); + this.off('click', this.handleClick_); + this.off(this.player_, 'controlsvisible', this.update_); + this.off(doc, 'mousemove', this.handleMouseMove_); + this.off(doc, 'mouseup', this.handleMouseUp_); + this.off(doc, 'touchmove', this.handleMouseMove_); + this.off(doc, 'touchend', this.handleMouseUp_); + this.removeAttribute('tabindex'); + this.addClass('disabled'); + if (this.playerEvent) { + this.off(this.player_, this.playerEvent, this.update); + } + this.enabled_ = false; + } + + /** + * Create the `Slider`s DOM element. + * + * @param {string} type + * Type of element to create. + * + * @param {Object} [props={}] + * List of properties in Object form. + * + * @param {Object} [attributes={}] + * list of attributes in Object form. + * + * @return {Element} + * The element that gets created. + */ + createEl(type, props = {}, attributes = {}) { + // Add the slider element class to all sub classes + props.className = props.className + ' vjs-slider'; + props = Object.assign({ + tabIndex: 0 + }, props); + attributes = Object.assign({ + 'role': 'slider', + 'aria-valuenow': 0, + 'aria-valuemin': 0, + 'aria-valuemax': 100 + }, attributes); + return super.createEl(type, props, attributes); + } + + /** + * Handle `mousedown` or `touchstart` events on the `Slider`. + * + * @param {MouseEvent} event + * `mousedown` or `touchstart` event that triggered this function + * + * @listens mousedown + * @listens touchstart + * @fires Slider#slideractive + */ + handleMouseDown(event) { + const doc = this.bar.el_.ownerDocument; + if (event.type === 'mousedown') { + event.preventDefault(); + } + // Do not call preventDefault() on touchstart in Chrome + // to avoid console warnings. Use a 'touch-action: none' style + // instead to prevent unintended scrolling. + // https://developers.google.com/web/updates/2017/01/scrolling-intervention + if (event.type === 'touchstart' && !IS_CHROME) { + event.preventDefault(); + } + blockTextSelection(); + this.addClass('vjs-sliding'); + /** + * Triggered when the slider is in an active state + * + * @event Slider#slideractive + * @type {MouseEvent} + */ + this.trigger('slideractive'); + this.on(doc, 'mousemove', this.handleMouseMove_); + this.on(doc, 'mouseup', this.handleMouseUp_); + this.on(doc, 'touchmove', this.handleMouseMove_); + this.on(doc, 'touchend', this.handleMouseUp_); + this.handleMouseMove(event, true); + } + + /** + * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`. + * The `mousemove` and `touchmove` events will only only trigger this function during + * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and + * {@link Slider#handleMouseUp}. + * + * @param {MouseEvent} event + * `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered + * this function + * @param {boolean} mouseDown this is a flag that should be set to true if `handleMouseMove` is called directly. It allows us to skip things that should not happen if coming from mouse down but should happen on regular mouse move handler. Defaults to false. + * + * @listens mousemove + * @listens touchmove + */ + handleMouseMove(event) {} + + /** + * Handle `mouseup` or `touchend` events on the `Slider`. + * + * @param {MouseEvent} event + * `mouseup` or `touchend` event that triggered this function. + * + * @listens touchend + * @listens mouseup + * @fires Slider#sliderinactive + */ + handleMouseUp(event) { + const doc = this.bar.el_.ownerDocument; + unblockTextSelection(); + this.removeClass('vjs-sliding'); + /** + * Triggered when the slider is no longer in an active state. + * + * @event Slider#sliderinactive + * @type {Event} + */ + this.trigger('sliderinactive'); + this.off(doc, 'mousemove', this.handleMouseMove_); + this.off(doc, 'mouseup', this.handleMouseUp_); + this.off(doc, 'touchmove', this.handleMouseMove_); + this.off(doc, 'touchend', this.handleMouseUp_); + this.update(); + } + + /** + * Update the progress bar of the `Slider`. + * + * @return {number} + * The percentage of progress the progress bar represents as a + * number from 0 to 1. + */ + update() { + // In VolumeBar init we have a setTimeout for update that pops and update + // to the end of the execution stack. The player is destroyed before then + // update will cause an error + // If there's no bar... + if (!this.el_ || !this.bar) { + return; + } + + // clamp progress between 0 and 1 + // and only round to four decimal places, as we round to two below + const progress = this.getProgress(); + if (progress === this.progress_) { + return progress; + } + this.progress_ = progress; + this.requestNamedAnimationFrame('Slider#update', () => { + // Set the new bar width or height + const sizeKey = this.vertical() ? 'height' : 'width'; + + // Convert to a percentage for css value + this.bar.el().style[sizeKey] = (progress * 100).toFixed(2) + '%'; + }); + return progress; + } + + /** + * Get the percentage of the bar that should be filled + * but clamped and rounded. + * + * @return {number} + * percentage filled that the slider is + */ + getProgress() { + return Number(clamp(this.getPercent(), 0, 1).toFixed(4)); + } + + /** + * Calculate distance for slider + * + * @param {Event} event + * The event that caused this function to run. + * + * @return {number} + * The current position of the Slider. + * - position.x for vertical `Slider`s + * - position.y for horizontal `Slider`s + */ + calculateDistance(event) { + const position = getPointerPosition(this.el_, event); + if (this.vertical()) { + return position.y; + } + return position.x; + } + + /** + * Handle a `keydown` event on the `Slider`. Watches for left, right, up, and down + * arrow keys. This function will only be called when the slider has focus. See + * {@link Slider#handleFocus} and {@link Slider#handleBlur}. + * + * @param {KeyboardEvent} event + * the `keydown` event that caused this function to run. + * + * @listens keydown + */ + handleKeyDown(event) { + // Left and Down Arrows + if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) { + event.preventDefault(); + event.stopPropagation(); + this.stepBack(); + + // Up and Right Arrows + } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) { + event.preventDefault(); + event.stopPropagation(); + this.stepForward(); + } else { + // Pass keydown handling up for unsupported keys + super.handleKeyDown(event); + } + } + + /** + * Listener for click events on slider, used to prevent clicks + * from bubbling up to parent elements like button menus. + * + * @param {Object} event + * Event that caused this object to run + */ + handleClick(event) { + event.stopPropagation(); + event.preventDefault(); + } + + /** + * Get/set if slider is horizontal for vertical + * + * @param {boolean} [bool] + * - true if slider is vertical, + * - false is horizontal + * + * @return {boolean} + * - true if slider is vertical, and getting + * - false if the slider is horizontal, and getting + */ + vertical(bool) { + if (bool === undefined) { + return this.vertical_ || false; + } + this.vertical_ = !!bool; + if (this.vertical_) { + this.addClass('vjs-slider-vertical'); + } else { + this.addClass('vjs-slider-horizontal'); + } + } + } + Component.registerComponent('Slider', Slider); + + /** + * @file load-progress-bar.js + */ + + // get the percent width of a time compared to the total end + const percentify = (time, end) => clamp(time / end * 100, 0, 100).toFixed(2) + '%'; + + /** + * Shows loading progress + * + * @extends Component + */ + class LoadProgressBar extends Component { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.partEls_ = []; + this.on(player, 'progress', e => this.update(e)); + } + + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + const el = super.createEl('div', { + className: 'vjs-load-progress' + }); + const wrapper = createEl('span', { + className: 'vjs-control-text' + }); + const loadedText = createEl('span', { + textContent: this.localize('Loaded') + }); + const separator = document.createTextNode(': '); + this.percentageEl_ = createEl('span', { + className: 'vjs-control-text-loaded-percentage', + textContent: '0%' + }); + el.appendChild(wrapper); + wrapper.appendChild(loadedText); + wrapper.appendChild(separator); + wrapper.appendChild(this.percentageEl_); + return el; + } + dispose() { + this.partEls_ = null; + this.percentageEl_ = null; + super.dispose(); + } + + /** + * Update progress bar + * + * @param {Event} [event] + * The `progress` event that caused this function to run. + * + * @listens Player#progress + */ + update(event) { + this.requestNamedAnimationFrame('LoadProgressBar#update', () => { + const liveTracker = this.player_.liveTracker; + const buffered = this.player_.buffered(); + const duration = liveTracker && liveTracker.isLive() ? liveTracker.seekableEnd() : this.player_.duration(); + const bufferedEnd = this.player_.bufferedEnd(); + const children = this.partEls_; + const percent = percentify(bufferedEnd, duration); + if (this.percent_ !== percent) { + // update the width of the progress bar + this.el_.style.width = percent; + // update the control-text + textContent(this.percentageEl_, percent); + this.percent_ = percent; + } + + // add child elements to represent the individual buffered time ranges + for (let i = 0; i < buffered.length; i++) { + const start = buffered.start(i); + const end = buffered.end(i); + let part = children[i]; + if (!part) { + part = this.el_.appendChild(createEl()); + children[i] = part; + } + + // only update if changed + if (part.dataset.start === start && part.dataset.end === end) { + continue; + } + part.dataset.start = start; + part.dataset.end = end; + + // set the percent based on the width of the progress bar (bufferedEnd) + part.style.left = percentify(start, bufferedEnd); + part.style.width = percentify(end - start, bufferedEnd); + } + + // remove unused buffered range elements + for (let i = children.length; i > buffered.length; i--) { + this.el_.removeChild(children[i - 1]); + } + children.length = buffered.length; + }); + } + } + Component.registerComponent('LoadProgressBar', LoadProgressBar); + + /** + * @file time-tooltip.js + */ + + /** + * Time tooltips display a time above the progress bar. + * + * @extends Component + */ + class TimeTooltip extends Component { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The {@link Player} that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL); + } + + /** + * Create the time tooltip DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + return super.createEl('div', { + className: 'vjs-time-tooltip' + }, { + 'aria-hidden': 'true' + }); + } + + /** + * Updates the position of the time tooltip relative to the `SeekBar`. + * + * @param {Object} seekBarRect + * The `ClientRect` for the {@link SeekBar} element. + * + * @param {number} seekBarPoint + * A number from 0 to 1, representing a horizontal reference point + * from the left edge of the {@link SeekBar} + */ + update(seekBarRect, seekBarPoint, content) { + const tooltipRect = findPosition(this.el_); + const playerRect = getBoundingClientRect(this.player_.el()); + const seekBarPointPx = seekBarRect.width * seekBarPoint; + + // do nothing if either rect isn't available + // for example, if the player isn't in the DOM for testing + if (!playerRect || !tooltipRect) { + return; + } + + // This is the space left of the `seekBarPoint` available within the bounds + // of the player. We calculate any gap between the left edge of the player + // and the left edge of the `SeekBar` and add the number of pixels in the + // `SeekBar` before hitting the `seekBarPoint` + let spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx; + + // This is the space right of the `seekBarPoint` available within the bounds + // of the player. We calculate the number of pixels from the `seekBarPoint` + // to the right edge of the `SeekBar` and add to that any gap between the + // right edge of the `SeekBar` and the player. + let spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right); + + // spaceRightOfPoint is always NaN for mouse time display + // because the seekbarRect does not have a right property. This causes + // the mouse tool tip to be truncated when it's close to the right edge of the player. + // In such cases, we ignore the `playerRect.right - seekBarRect.right` value when calculating. + // For the sake of consistency, we ignore seekBarRect.left - playerRect.left for the left edge. + if (!spaceRightOfPoint) { + spaceRightOfPoint = seekBarRect.width - seekBarPointPx; + spaceLeftOfPoint = seekBarPointPx; + } + // This is the number of pixels by which the tooltip will need to be pulled + // further to the right to center it over the `seekBarPoint`. + let pullTooltipBy = tooltipRect.width / 2; + + // Adjust the `pullTooltipBy` distance to the left or right depending on + // the results of the space calculations above. + if (spaceLeftOfPoint < pullTooltipBy) { + pullTooltipBy += pullTooltipBy - spaceLeftOfPoint; + } else if (spaceRightOfPoint < pullTooltipBy) { + pullTooltipBy = spaceRightOfPoint; + } + + // Due to the imprecision of decimal/ratio based calculations and varying + // rounding behaviors, there are cases where the spacing adjustment is off + // by a pixel or two. This adds insurance to these calculations. + if (pullTooltipBy < 0) { + pullTooltipBy = 0; + } else if (pullTooltipBy > tooltipRect.width) { + pullTooltipBy = tooltipRect.width; + } + + // prevent small width fluctuations within 0.4px from + // changing the value below. + // This really helps for live to prevent the play + // progress time tooltip from jittering + pullTooltipBy = Math.round(pullTooltipBy); + this.el_.style.right = `-${pullTooltipBy}px`; + this.write(content); + } + + /** + * Write the time to the tooltip DOM element. + * + * @param {string} content + * The formatted time for the tooltip. + */ + write(content) { + textContent(this.el_, content); + } + + /** + * Updates the position of the time tooltip relative to the `SeekBar`. + * + * @param {Object} seekBarRect + * The `ClientRect` for the {@link SeekBar} element. + * + * @param {number} seekBarPoint + * A number from 0 to 1, representing a horizontal reference point + * from the left edge of the {@link SeekBar} + * + * @param {number} time + * The time to update the tooltip to, not used during live playback + * + * @param {Function} cb + * A function that will be called during the request animation frame + * for tooltips that need to do additional animations from the default + */ + updateTime(seekBarRect, seekBarPoint, time, cb) { + this.requestNamedAnimationFrame('TimeTooltip#updateTime', () => { + let content; + const duration = this.player_.duration(); + if (this.player_.liveTracker && this.player_.liveTracker.isLive()) { + const liveWindow = this.player_.liveTracker.liveWindow(); + const secondsBehind = liveWindow - seekBarPoint * liveWindow; + content = (secondsBehind < 1 ? '' : '-') + formatTime(secondsBehind, liveWindow); + } else { + content = formatTime(time, duration); + } + this.update(seekBarRect, seekBarPoint, content); + if (cb) { + cb(); + } + }); + } + } + Component.registerComponent('TimeTooltip', TimeTooltip); + + /** + * @file play-progress-bar.js + */ + + /** + * Used by {@link SeekBar} to display media playback progress as part of the + * {@link ProgressControl}. + * + * @extends Component + */ + class PlayProgressBar extends Component { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The {@link Player} that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.setIcon('circle'); + this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL); + } + + /** + * Create the the DOM element for this class. + * + * @return {Element} + * The element that was created. + */ + createEl() { + return super.createEl('div', { + className: 'vjs-play-progress vjs-slider-bar' + }, { + 'aria-hidden': 'true' + }); + } + + /** + * Enqueues updates to its own DOM as well as the DOM of its + * {@link TimeTooltip} child. + * + * @param {Object} seekBarRect + * The `ClientRect` for the {@link SeekBar} element. + * + * @param {number} seekBarPoint + * A number from 0 to 1, representing a horizontal reference point + * from the left edge of the {@link SeekBar} + */ + update(seekBarRect, seekBarPoint) { + const timeTooltip = this.getChild('timeTooltip'); + if (!timeTooltip) { + return; + } + const time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime(); + timeTooltip.updateTime(seekBarRect, seekBarPoint, time); + } + } + + /** + * Default options for {@link PlayProgressBar}. + * + * @type {Object} + * @private + */ + PlayProgressBar.prototype.options_ = { + children: [] + }; + + // Time tooltips should not be added to a player on mobile devices + if (!IS_IOS && !IS_ANDROID) { + PlayProgressBar.prototype.options_.children.push('timeTooltip'); + } + Component.registerComponent('PlayProgressBar', PlayProgressBar); + + /** + * @file mouse-time-display.js + */ + + /** + * The {@link MouseTimeDisplay} component tracks mouse movement over the + * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip} + * indicating the time which is represented by a given point in the + * {@link ProgressControl}. + * + * @extends Component + */ + class MouseTimeDisplay extends Component { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The {@link Player} that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL); + } + + /** + * Create the DOM element for this class. + * + * @return {Element} + * The element that was created. + */ + createEl() { + return super.createEl('div', { + className: 'vjs-mouse-display' + }); + } + + /** + * Enqueues updates to its own DOM as well as the DOM of its + * {@link TimeTooltip} child. + * + * @param {Object} seekBarRect + * The `ClientRect` for the {@link SeekBar} element. + * + * @param {number} seekBarPoint + * A number from 0 to 1, representing a horizontal reference point + * from the left edge of the {@link SeekBar} + */ + update(seekBarRect, seekBarPoint) { + const time = seekBarPoint * this.player_.duration(); + this.getChild('timeTooltip').updateTime(seekBarRect, seekBarPoint, time, () => { + this.el_.style.left = `${seekBarRect.width * seekBarPoint}px`; + }); + } + } + + /** + * Default options for `MouseTimeDisplay` + * + * @type {Object} + * @private + */ + MouseTimeDisplay.prototype.options_ = { + children: ['timeTooltip'] + }; + Component.registerComponent('MouseTimeDisplay', MouseTimeDisplay); + + /** + * @file seek-bar.js + */ + + // The number of seconds the `step*` functions move the timeline. + const STEP_SECONDS = 5; + + // The multiplier of STEP_SECONDS that PgUp/PgDown move the timeline. + const PAGE_KEY_MULTIPLIER = 12; + + /** + * Seek bar and container for the progress bars. Uses {@link PlayProgressBar} + * as its `bar`. + * + * @extends Slider + */ + class SeekBar extends Slider { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.setEventHandlers_(); + } + + /** + * Sets the event handlers + * + * @private + */ + setEventHandlers_() { + this.update_ = bind_(this, this.update); + this.update = throttle(this.update_, UPDATE_REFRESH_INTERVAL); + this.on(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update); + if (this.player_.liveTracker) { + this.on(this.player_.liveTracker, 'liveedgechange', this.update); + } + + // when playing, let's ensure we smoothly update the play progress bar + // via an interval + this.updateInterval = null; + this.enableIntervalHandler_ = e => this.enableInterval_(e); + this.disableIntervalHandler_ = e => this.disableInterval_(e); + this.on(this.player_, ['playing'], this.enableIntervalHandler_); + this.on(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_); + + // we don't need to update the play progress if the document is hidden, + // also, this causes the CPU to spike and eventually crash the page on IE11. + if ('hidden' in document && 'visibilityState' in document) { + this.on(document, 'visibilitychange', this.toggleVisibility_); + } + } + toggleVisibility_(e) { + if (document.visibilityState === 'hidden') { + this.cancelNamedAnimationFrame('SeekBar#update'); + this.cancelNamedAnimationFrame('Slider#update'); + this.disableInterval_(e); + } else { + if (!this.player_.ended() && !this.player_.paused()) { + this.enableInterval_(); + } + + // we just switched back to the page and someone may be looking, so, update ASAP + this.update(); + } + } + enableInterval_() { + if (this.updateInterval) { + return; + } + this.updateInterval = this.setInterval(this.update, UPDATE_REFRESH_INTERVAL); + } + disableInterval_(e) { + if (this.player_.liveTracker && this.player_.liveTracker.isLive() && e && e.type !== 'ended') { + return; + } + if (!this.updateInterval) { + return; + } + this.clearInterval(this.updateInterval); + this.updateInterval = null; + } + + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + return super.createEl('div', { + className: 'vjs-progress-holder' + }, { + 'aria-label': this.localize('Progress Bar') + }); + } + + /** + * This function updates the play progress bar and accessibility + * attributes to whatever is passed in. + * + * @param {Event} [event] + * The `timeupdate` or `ended` event that caused this to run. + * + * @listens Player#timeupdate + * + * @return {number} + * The current percent at a number from 0-1 + */ + update(event) { + // ignore updates while the tab is hidden + if (document.visibilityState === 'hidden') { + return; + } + const percent = super.update(); + this.requestNamedAnimationFrame('SeekBar#update', () => { + const currentTime = this.player_.ended() ? this.player_.duration() : this.getCurrentTime_(); + const liveTracker = this.player_.liveTracker; + let duration = this.player_.duration(); + if (liveTracker && liveTracker.isLive()) { + duration = this.player_.liveTracker.liveCurrentTime(); + } + if (this.percent_ !== percent) { + // machine readable value of progress bar (percentage complete) + this.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2)); + this.percent_ = percent; + } + if (this.currentTime_ !== currentTime || this.duration_ !== duration) { + // human readable value of progress bar (time complete) + this.el_.setAttribute('aria-valuetext', this.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}')); + this.currentTime_ = currentTime; + this.duration_ = duration; + } + + // update the progress bar time tooltip with the current time + if (this.bar) { + this.bar.update(getBoundingClientRect(this.el()), this.getProgress()); + } + }); + return percent; + } + + /** + * Prevent liveThreshold from causing seeks to seem like they + * are not happening from a user perspective. + * + * @param {number} ct + * current time to seek to + */ + userSeek_(ct) { + if (this.player_.liveTracker && this.player_.liveTracker.isLive()) { + this.player_.liveTracker.nextSeekedFromUser(); + } + this.player_.currentTime(ct); + } + + /** + * Get the value of current time but allows for smooth scrubbing, + * when player can't keep up. + * + * @return {number} + * The current time value to display + * + * @private + */ + getCurrentTime_() { + return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime(); + } + + /** + * Get the percentage of media played so far. + * + * @return {number} + * The percentage of media played so far (0 to 1). + */ + getPercent() { + const currentTime = this.getCurrentTime_(); + let percent; + const liveTracker = this.player_.liveTracker; + if (liveTracker && liveTracker.isLive()) { + percent = (currentTime - liveTracker.seekableStart()) / liveTracker.liveWindow(); + + // prevent the percent from changing at the live edge + if (liveTracker.atLiveEdge()) { + percent = 1; + } + } else { + percent = currentTime / this.player_.duration(); + } + return percent; + } + + /** + * Handle mouse down on seek bar + * + * @param {MouseEvent} event + * The `mousedown` event that caused this to run. + * + * @listens mousedown + */ + handleMouseDown(event) { + if (!isSingleLeftClick(event)) { + return; + } + + // Stop event propagation to prevent double fire in progress-control.js + event.stopPropagation(); + this.videoWasPlaying = !this.player_.paused(); + this.player_.pause(); + super.handleMouseDown(event); + } + + /** + * Handle mouse move on seek bar + * + * @param {MouseEvent} event + * The `mousemove` event that caused this to run. + * @param {boolean} mouseDown this is a flag that should be set to true if `handleMouseMove` is called directly. It allows us to skip things that should not happen if coming from mouse down but should happen on regular mouse move handler. Defaults to false + * + * @listens mousemove + */ + handleMouseMove(event, mouseDown = false) { + if (!isSingleLeftClick(event) || isNaN(this.player_.duration())) { + return; + } + if (!mouseDown && !this.player_.scrubbing()) { + this.player_.scrubbing(true); + } + let newTime; + const distance = this.calculateDistance(event); + const liveTracker = this.player_.liveTracker; + if (!liveTracker || !liveTracker.isLive()) { + newTime = distance * this.player_.duration(); + + // Don't let video end while scrubbing. + if (newTime === this.player_.duration()) { + newTime = newTime - 0.1; + } + } else { + if (distance >= 0.99) { + liveTracker.seekToLiveEdge(); + return; + } + const seekableStart = liveTracker.seekableStart(); + const seekableEnd = liveTracker.liveCurrentTime(); + newTime = seekableStart + distance * liveTracker.liveWindow(); + + // Don't let video end while scrubbing. + if (newTime >= seekableEnd) { + newTime = seekableEnd; + } + + // Compensate for precision differences so that currentTime is not less + // than seekable start + if (newTime <= seekableStart) { + newTime = seekableStart + 0.1; + } + + // On android seekableEnd can be Infinity sometimes, + // this will cause newTime to be Infinity, which is + // not a valid currentTime. + if (newTime === Infinity) { + return; + } + } + + // Set new time (tell player to seek to new time) + this.userSeek_(newTime); + if (this.player_.options_.enableSmoothSeeking) { + this.update(); + } + } + enable() { + super.enable(); + const mouseTimeDisplay = this.getChild('mouseTimeDisplay'); + if (!mouseTimeDisplay) { + return; + } + mouseTimeDisplay.show(); + } + disable() { + super.disable(); + const mouseTimeDisplay = this.getChild('mouseTimeDisplay'); + if (!mouseTimeDisplay) { + return; + } + mouseTimeDisplay.hide(); + } + + /** + * Handle mouse up on seek bar + * + * @param {MouseEvent} event + * The `mouseup` event that caused this to run. + * + * @listens mouseup + */ + handleMouseUp(event) { + super.handleMouseUp(event); + + // Stop event propagation to prevent double fire in progress-control.js + if (event) { + event.stopPropagation(); + } + this.player_.scrubbing(false); + + /** + * Trigger timeupdate because we're done seeking and the time has changed. + * This is particularly useful for if the player is paused to time the time displays. + * + * @event Tech#timeupdate + * @type {Event} + */ + this.player_.trigger({ + type: 'timeupdate', + target: this, + manuallyTriggered: true + }); + if (this.videoWasPlaying) { + silencePromise(this.player_.play()); + } else { + // We're done seeking and the time has changed. + // If the player is paused, make sure we display the correct time on the seek bar. + this.update_(); + } + } + + /** + * Move more quickly fast forward for keyboard-only users + */ + stepForward() { + this.userSeek_(this.player_.currentTime() + STEP_SECONDS); + } + + /** + * Move more quickly rewind for keyboard-only users + */ + stepBack() { + this.userSeek_(this.player_.currentTime() - STEP_SECONDS); + } + + /** + * Toggles the playback state of the player + * This gets called when enter or space is used on the seekbar + * + * @param {KeyboardEvent} event + * The `keydown` event that caused this function to be called + * + */ + handleAction(event) { + if (this.player_.paused()) { + this.player_.play(); + } else { + this.player_.pause(); + } + } + + /** + * Called when this SeekBar has focus and a key gets pressed down. + * Supports the following keys: + * + * Space or Enter key fire a click event + * Home key moves to start of the timeline + * End key moves to end of the timeline + * Digit "0" through "9" keys move to 0%, 10% ... 80%, 90% of the timeline + * PageDown key moves back a larger step than ArrowDown + * PageUp key moves forward a large step + * + * @param {KeyboardEvent} event + * The `keydown` event that caused this function to be called. + * + * @listens keydown + */ + handleKeyDown(event) { + const liveTracker = this.player_.liveTracker; + if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) { + event.preventDefault(); + event.stopPropagation(); + this.handleAction(event); + } else if (keycode.isEventKey(event, 'Home')) { + event.preventDefault(); + event.stopPropagation(); + this.userSeek_(0); + } else if (keycode.isEventKey(event, 'End')) { + event.preventDefault(); + event.stopPropagation(); + if (liveTracker && liveTracker.isLive()) { + this.userSeek_(liveTracker.liveCurrentTime()); + } else { + this.userSeek_(this.player_.duration()); + } + } else if (/^[0-9]$/.test(keycode(event))) { + event.preventDefault(); + event.stopPropagation(); + const gotoFraction = (keycode.codes[keycode(event)] - keycode.codes['0']) * 10.0 / 100.0; + if (liveTracker && liveTracker.isLive()) { + this.userSeek_(liveTracker.seekableStart() + liveTracker.liveWindow() * gotoFraction); + } else { + this.userSeek_(this.player_.duration() * gotoFraction); + } + } else if (keycode.isEventKey(event, 'PgDn')) { + event.preventDefault(); + event.stopPropagation(); + this.userSeek_(this.player_.currentTime() - STEP_SECONDS * PAGE_KEY_MULTIPLIER); + } else if (keycode.isEventKey(event, 'PgUp')) { + event.preventDefault(); + event.stopPropagation(); + this.userSeek_(this.player_.currentTime() + STEP_SECONDS * PAGE_KEY_MULTIPLIER); + } else { + // Pass keydown handling up for unsupported keys + super.handleKeyDown(event); + } + } + dispose() { + this.disableInterval_(); + this.off(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update); + if (this.player_.liveTracker) { + this.off(this.player_.liveTracker, 'liveedgechange', this.update); + } + this.off(this.player_, ['playing'], this.enableIntervalHandler_); + this.off(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_); + + // we don't need to update the play progress if the document is hidden, + // also, this causes the CPU to spike and eventually crash the page on IE11. + if ('hidden' in document && 'visibilityState' in document) { + this.off(document, 'visibilitychange', this.toggleVisibility_); + } + super.dispose(); + } + } + + /** + * Default options for the `SeekBar` + * + * @type {Object} + * @private + */ + SeekBar.prototype.options_ = { + children: ['loadProgressBar', 'playProgressBar'], + barName: 'playProgressBar' + }; + + // MouseTimeDisplay tooltips should not be added to a player on mobile devices + if (!IS_IOS && !IS_ANDROID) { + SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay'); + } + Component.registerComponent('SeekBar', SeekBar); + + /** + * @file progress-control.js + */ + + /** + * The Progress Control component contains the seek bar, load progress, + * and play progress. + * + * @extends Component + */ + class ProgressControl extends Component { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.handleMouseMove = throttle(bind_(this, this.handleMouseMove), UPDATE_REFRESH_INTERVAL); + this.throttledHandleMouseSeek = throttle(bind_(this, this.handleMouseSeek), UPDATE_REFRESH_INTERVAL); + this.handleMouseUpHandler_ = e => this.handleMouseUp(e); + this.handleMouseDownHandler_ = e => this.handleMouseDown(e); + this.enable(); + } + + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + return super.createEl('div', { + className: 'vjs-progress-control vjs-control' + }); + } + + /** + * When the mouse moves over the `ProgressControl`, the pointer position + * gets passed down to the `MouseTimeDisplay` component. + * + * @param {Event} event + * The `mousemove` event that caused this function to run. + * + * @listen mousemove + */ + handleMouseMove(event) { + const seekBar = this.getChild('seekBar'); + if (!seekBar) { + return; + } + const playProgressBar = seekBar.getChild('playProgressBar'); + const mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay'); + if (!playProgressBar && !mouseTimeDisplay) { + return; + } + const seekBarEl = seekBar.el(); + const seekBarRect = findPosition(seekBarEl); + let seekBarPoint = getPointerPosition(seekBarEl, event).x; + + // The default skin has a gap on either side of the `SeekBar`. This means + // that it's possible to trigger this behavior outside the boundaries of + // the `SeekBar`. This ensures we stay within it at all times. + seekBarPoint = clamp(seekBarPoint, 0, 1); + if (mouseTimeDisplay) { + mouseTimeDisplay.update(seekBarRect, seekBarPoint); + } + if (playProgressBar) { + playProgressBar.update(seekBarRect, seekBar.getProgress()); + } + } + + /** + * A throttled version of the {@link ProgressControl#handleMouseSeek} listener. + * + * @method ProgressControl#throttledHandleMouseSeek + * @param {Event} event + * The `mousemove` event that caused this function to run. + * + * @listen mousemove + * @listen touchmove + */ + + /** + * Handle `mousemove` or `touchmove` events on the `ProgressControl`. + * + * @param {Event} event + * `mousedown` or `touchstart` event that triggered this function + * + * @listens mousemove + * @listens touchmove + */ + handleMouseSeek(event) { + const seekBar = this.getChild('seekBar'); + if (seekBar) { + seekBar.handleMouseMove(event); + } + } + + /** + * Are controls are currently enabled for this progress control. + * + * @return {boolean} + * true if controls are enabled, false otherwise + */ + enabled() { + return this.enabled_; + } + + /** + * Disable all controls on the progress control and its children + */ + disable() { + this.children().forEach(child => child.disable && child.disable()); + if (!this.enabled()) { + return; + } + this.off(['mousedown', 'touchstart'], this.handleMouseDownHandler_); + this.off(this.el_, 'mousemove', this.handleMouseMove); + this.removeListenersAddedOnMousedownAndTouchstart(); + this.addClass('disabled'); + this.enabled_ = false; + + // Restore normal playback state if controls are disabled while scrubbing + if (this.player_.scrubbing()) { + const seekBar = this.getChild('seekBar'); + this.player_.scrubbing(false); + if (seekBar.videoWasPlaying) { + silencePromise(this.player_.play()); + } + } + } + + /** + * Enable all controls on the progress control and its children + */ + enable() { + this.children().forEach(child => child.enable && child.enable()); + if (this.enabled()) { + return; + } + this.on(['mousedown', 'touchstart'], this.handleMouseDownHandler_); + this.on(this.el_, 'mousemove', this.handleMouseMove); + this.removeClass('disabled'); + this.enabled_ = true; + } + + /** + * Cleanup listeners after the user finishes interacting with the progress controls + */ + removeListenersAddedOnMousedownAndTouchstart() { + const doc = this.el_.ownerDocument; + this.off(doc, 'mousemove', this.throttledHandleMouseSeek); + this.off(doc, 'touchmove', this.throttledHandleMouseSeek); + this.off(doc, 'mouseup', this.handleMouseUpHandler_); + this.off(doc, 'touchend', this.handleMouseUpHandler_); + } + + /** + * Handle `mousedown` or `touchstart` events on the `ProgressControl`. + * + * @param {Event} event + * `mousedown` or `touchstart` event that triggered this function + * + * @listens mousedown + * @listens touchstart + */ + handleMouseDown(event) { + const doc = this.el_.ownerDocument; + const seekBar = this.getChild('seekBar'); + if (seekBar) { + seekBar.handleMouseDown(event); + } + this.on(doc, 'mousemove', this.throttledHandleMouseSeek); + this.on(doc, 'touchmove', this.throttledHandleMouseSeek); + this.on(doc, 'mouseup', this.handleMouseUpHandler_); + this.on(doc, 'touchend', this.handleMouseUpHandler_); + } + + /** + * Handle `mouseup` or `touchend` events on the `ProgressControl`. + * + * @param {Event} event + * `mouseup` or `touchend` event that triggered this function. + * + * @listens touchend + * @listens mouseup + */ + handleMouseUp(event) { + const seekBar = this.getChild('seekBar'); + if (seekBar) { + seekBar.handleMouseUp(event); + } + this.removeListenersAddedOnMousedownAndTouchstart(); + } + } + + /** + * Default options for `ProgressControl` + * + * @type {Object} + * @private + */ + ProgressControl.prototype.options_ = { + children: ['seekBar'] + }; + Component.registerComponent('ProgressControl', ProgressControl); + + /** + * @file picture-in-picture-toggle.js + */ + + /** + * Toggle Picture-in-Picture mode + * + * @extends Button + */ + class PictureInPictureToggle extends Button { + /** + * Creates an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @listens Player#enterpictureinpicture + * @listens Player#leavepictureinpicture + */ + constructor(player, options) { + super(player, options); + this.setIcon('picture-in-picture-enter'); + this.on(player, ['enterpictureinpicture', 'leavepictureinpicture'], e => this.handlePictureInPictureChange(e)); + this.on(player, ['disablepictureinpicturechanged', 'loadedmetadata'], e => this.handlePictureInPictureEnabledChange(e)); + this.on(player, ['loadedmetadata', 'audioonlymodechange', 'audiopostermodechange'], () => this.handlePictureInPictureAudioModeChange()); + + // TODO: Deactivate button on player emptied event. + this.disable(); + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-picture-in-picture-control vjs-hidden ${super.buildCSSClass()}`; + } + + /** + * Displays or hides the button depending on the audio mode detection. + * Exits picture-in-picture if it is enabled when switching to audio mode. + */ + handlePictureInPictureAudioModeChange() { + // This audio detection will not detect HLS or DASH audio-only streams because there was no reliable way to detect them at the time + const isSourceAudio = this.player_.currentType().substring(0, 5) === 'audio'; + const isAudioMode = isSourceAudio || this.player_.audioPosterMode() || this.player_.audioOnlyMode(); + if (!isAudioMode) { + this.show(); + return; + } + if (this.player_.isInPictureInPicture()) { + this.player_.exitPictureInPicture(); + } + this.hide(); + } + + /** + * Enables or disables button based on availability of a Picture-In-Picture mode. + * + * Enabled if + * - `player.options().enableDocumentPictureInPicture` is true and + * window.documentPictureInPicture is available; or + * - `player.disablePictureInPicture()` is false and + * element.requestPictureInPicture is available + */ + handlePictureInPictureEnabledChange() { + if (document.pictureInPictureEnabled && this.player_.disablePictureInPicture() === false || this.player_.options_.enableDocumentPictureInPicture && 'documentPictureInPicture' in window) { + this.enable(); + } else { + this.disable(); + } + } + + /** + * Handles enterpictureinpicture and leavepictureinpicture on the player and change control text accordingly. + * + * @param {Event} [event] + * The {@link Player#enterpictureinpicture} or {@link Player#leavepictureinpicture} event that caused this function to be + * called. + * + * @listens Player#enterpictureinpicture + * @listens Player#leavepictureinpicture + */ + handlePictureInPictureChange(event) { + if (this.player_.isInPictureInPicture()) { + this.setIcon('picture-in-picture-exit'); + this.controlText('Exit Picture-in-Picture'); + } else { + this.setIcon('picture-in-picture-enter'); + this.controlText('Picture-in-Picture'); + } + this.handlePictureInPictureEnabledChange(); + } + + /** + * This gets called when an `PictureInPictureToggle` is "clicked". See + * {@link ClickableComponent} for more detailed information on what a click can be. + * + * @param {Event} [event] + * The `keydown`, `tap`, or `click` event that caused this function to be + * called. + * + * @listens tap + * @listens click + */ + handleClick(event) { + if (!this.player_.isInPictureInPicture()) { + this.player_.requestPictureInPicture(); + } else { + this.player_.exitPictureInPicture(); + } + } + + /** + * Show the `Component`s element if it is hidden by removing the + * 'vjs-hidden' class name from it only in browsers that support the Picture-in-Picture API. + */ + show() { + // Does not allow to display the pictureInPictureToggle in browsers that do not support the Picture-in-Picture API, e.g. Firefox. + if (typeof document.exitPictureInPicture !== 'function') { + return; + } + super.show(); + } + } + + /** + * The text that should display over the `PictureInPictureToggle`s controls. Added for localization. + * + * @type {string} + * @protected + */ + PictureInPictureToggle.prototype.controlText_ = 'Picture-in-Picture'; + Component.registerComponent('PictureInPictureToggle', PictureInPictureToggle); + + /** + * @file fullscreen-toggle.js + */ + + /** + * Toggle fullscreen video + * + * @extends Button + */ + class FullscreenToggle extends Button { + /** + * Creates an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.setIcon('fullscreen-enter'); + this.on(player, 'fullscreenchange', e => this.handleFullscreenChange(e)); + if (document[player.fsApi_.fullscreenEnabled] === false) { + this.disable(); + } + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-fullscreen-control ${super.buildCSSClass()}`; + } + + /** + * Handles fullscreenchange on the player and change control text accordingly. + * + * @param {Event} [event] + * The {@link Player#fullscreenchange} event that caused this function to be + * called. + * + * @listens Player#fullscreenchange + */ + handleFullscreenChange(event) { + if (this.player_.isFullscreen()) { + this.controlText('Exit Fullscreen'); + this.setIcon('fullscreen-exit'); + } else { + this.controlText('Fullscreen'); + this.setIcon('fullscreen-enter'); + } + } + + /** + * This gets called when an `FullscreenToggle` is "clicked". See + * {@link ClickableComponent} for more detailed information on what a click can be. + * + * @param {Event} [event] + * The `keydown`, `tap`, or `click` event that caused this function to be + * called. + * + * @listens tap + * @listens click + */ + handleClick(event) { + if (!this.player_.isFullscreen()) { + this.player_.requestFullscreen(); + } else { + this.player_.exitFullscreen(); + } + } + } + + /** + * The text that should display over the `FullscreenToggle`s controls. Added for localization. + * + * @type {string} + * @protected + */ + FullscreenToggle.prototype.controlText_ = 'Fullscreen'; + Component.registerComponent('FullscreenToggle', FullscreenToggle); + + /** + * Check if volume control is supported and if it isn't hide the + * `Component` that was passed using the `vjs-hidden` class. + * + * @param { import('../../component').default } self + * The component that should be hidden if volume is unsupported + * + * @param { import('../../player').default } player + * A reference to the player + * + * @private + */ + const checkVolumeSupport = function (self, player) { + // hide volume controls when they're not supported by the current tech + if (player.tech_ && !player.tech_.featuresVolumeControl) { + self.addClass('vjs-hidden'); + } + self.on(player, 'loadstart', function () { + if (!player.tech_.featuresVolumeControl) { + self.addClass('vjs-hidden'); + } else { + self.removeClass('vjs-hidden'); + } + }); + }; + + /** + * @file volume-level.js + */ + + /** + * Shows volume level + * + * @extends Component + */ + class VolumeLevel extends Component { + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + const el = super.createEl('div', { + className: 'vjs-volume-level' + }); + this.setIcon('circle', el); + el.appendChild(super.createEl('span', { + className: 'vjs-control-text' + })); + return el; + } + } + Component.registerComponent('VolumeLevel', VolumeLevel); + + /** + * @file volume-level-tooltip.js + */ + + /** + * Volume level tooltips display a volume above or side by side the volume bar. + * + * @extends Component + */ + class VolumeLevelTooltip extends Component { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The {@link Player} that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL); + } + + /** + * Create the volume tooltip DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + return super.createEl('div', { + className: 'vjs-volume-tooltip' + }, { + 'aria-hidden': 'true' + }); + } + + /** + * Updates the position of the tooltip relative to the `VolumeBar` and + * its content text. + * + * @param {Object} rangeBarRect + * The `ClientRect` for the {@link VolumeBar} element. + * + * @param {number} rangeBarPoint + * A number from 0 to 1, representing a horizontal/vertical reference point + * from the left edge of the {@link VolumeBar} + * + * @param {boolean} vertical + * Referees to the Volume control position + * in the control bar{@link VolumeControl} + * + */ + update(rangeBarRect, rangeBarPoint, vertical, content) { + if (!vertical) { + const tooltipRect = getBoundingClientRect(this.el_); + const playerRect = getBoundingClientRect(this.player_.el()); + const volumeBarPointPx = rangeBarRect.width * rangeBarPoint; + if (!playerRect || !tooltipRect) { + return; + } + const spaceLeftOfPoint = rangeBarRect.left - playerRect.left + volumeBarPointPx; + const spaceRightOfPoint = rangeBarRect.width - volumeBarPointPx + (playerRect.right - rangeBarRect.right); + let pullTooltipBy = tooltipRect.width / 2; + if (spaceLeftOfPoint < pullTooltipBy) { + pullTooltipBy += pullTooltipBy - spaceLeftOfPoint; + } else if (spaceRightOfPoint < pullTooltipBy) { + pullTooltipBy = spaceRightOfPoint; + } + if (pullTooltipBy < 0) { + pullTooltipBy = 0; + } else if (pullTooltipBy > tooltipRect.width) { + pullTooltipBy = tooltipRect.width; + } + this.el_.style.right = `-${pullTooltipBy}px`; + } + this.write(`${content}%`); + } + + /** + * Write the volume to the tooltip DOM element. + * + * @param {string} content + * The formatted volume for the tooltip. + */ + write(content) { + textContent(this.el_, content); + } + + /** + * Updates the position of the volume tooltip relative to the `VolumeBar`. + * + * @param {Object} rangeBarRect + * The `ClientRect` for the {@link VolumeBar} element. + * + * @param {number} rangeBarPoint + * A number from 0 to 1, representing a horizontal/vertical reference point + * from the left edge of the {@link VolumeBar} + * + * @param {boolean} vertical + * Referees to the Volume control position + * in the control bar{@link VolumeControl} + * + * @param {number} volume + * The volume level to update the tooltip to + * + * @param {Function} cb + * A function that will be called during the request animation frame + * for tooltips that need to do additional animations from the default + */ + updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, cb) { + this.requestNamedAnimationFrame('VolumeLevelTooltip#updateVolume', () => { + this.update(rangeBarRect, rangeBarPoint, vertical, volume.toFixed(0)); + if (cb) { + cb(); + } + }); + } + } + Component.registerComponent('VolumeLevelTooltip', VolumeLevelTooltip); + + /** + * @file mouse-volume-level-display.js + */ + + /** + * The {@link MouseVolumeLevelDisplay} component tracks mouse movement over the + * {@link VolumeControl}. It displays an indicator and a {@link VolumeLevelTooltip} + * indicating the volume level which is represented by a given point in the + * {@link VolumeBar}. + * + * @extends Component + */ + class MouseVolumeLevelDisplay extends Component { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The {@link Player} that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL); + } + + /** + * Create the DOM element for this class. + * + * @return {Element} + * The element that was created. + */ + createEl() { + return super.createEl('div', { + className: 'vjs-mouse-display' + }); + } + + /** + * Enquires updates to its own DOM as well as the DOM of its + * {@link VolumeLevelTooltip} child. + * + * @param {Object} rangeBarRect + * The `ClientRect` for the {@link VolumeBar} element. + * + * @param {number} rangeBarPoint + * A number from 0 to 1, representing a horizontal/vertical reference point + * from the left edge of the {@link VolumeBar} + * + * @param {boolean} vertical + * Referees to the Volume control position + * in the control bar{@link VolumeControl} + * + */ + update(rangeBarRect, rangeBarPoint, vertical) { + const volume = 100 * rangeBarPoint; + this.getChild('volumeLevelTooltip').updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, () => { + if (vertical) { + this.el_.style.bottom = `${rangeBarRect.height * rangeBarPoint}px`; + } else { + this.el_.style.left = `${rangeBarRect.width * rangeBarPoint}px`; + } + }); + } + } + + /** + * Default options for `MouseVolumeLevelDisplay` + * + * @type {Object} + * @private + */ + MouseVolumeLevelDisplay.prototype.options_ = { + children: ['volumeLevelTooltip'] + }; + Component.registerComponent('MouseVolumeLevelDisplay', MouseVolumeLevelDisplay); + + /** + * @file volume-bar.js + */ + + /** + * The bar that contains the volume level and can be clicked on to adjust the level + * + * @extends Slider + */ + class VolumeBar extends Slider { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.on('slideractive', e => this.updateLastVolume_(e)); + this.on(player, 'volumechange', e => this.updateARIAAttributes(e)); + player.ready(() => this.updateARIAAttributes()); + } + + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + return super.createEl('div', { + className: 'vjs-volume-bar vjs-slider-bar' + }, { + 'aria-label': this.localize('Volume Level'), + 'aria-live': 'polite' + }); + } + + /** + * Handle mouse down on volume bar + * + * @param {Event} event + * The `mousedown` event that caused this to run. + * + * @listens mousedown + */ + handleMouseDown(event) { + if (!isSingleLeftClick(event)) { + return; + } + super.handleMouseDown(event); + } + + /** + * Handle movement events on the {@link VolumeMenuButton}. + * + * @param {Event} event + * The event that caused this function to run. + * + * @listens mousemove + */ + handleMouseMove(event) { + const mouseVolumeLevelDisplay = this.getChild('mouseVolumeLevelDisplay'); + if (mouseVolumeLevelDisplay) { + const volumeBarEl = this.el(); + const volumeBarRect = getBoundingClientRect(volumeBarEl); + const vertical = this.vertical(); + let volumeBarPoint = getPointerPosition(volumeBarEl, event); + volumeBarPoint = vertical ? volumeBarPoint.y : volumeBarPoint.x; + // The default skin has a gap on either side of the `VolumeBar`. This means + // that it's possible to trigger this behavior outside the boundaries of + // the `VolumeBar`. This ensures we stay within it at all times. + volumeBarPoint = clamp(volumeBarPoint, 0, 1); + mouseVolumeLevelDisplay.update(volumeBarRect, volumeBarPoint, vertical); + } + if (!isSingleLeftClick(event)) { + return; + } + this.checkMuted(); + this.player_.volume(this.calculateDistance(event)); + } + + /** + * If the player is muted unmute it. + */ + checkMuted() { + if (this.player_.muted()) { + this.player_.muted(false); + } + } + + /** + * Get percent of volume level + * + * @return {number} + * Volume level percent as a decimal number. + */ + getPercent() { + if (this.player_.muted()) { + return 0; + } + return this.player_.volume(); + } + + /** + * Increase volume level for keyboard users + */ + stepForward() { + this.checkMuted(); + this.player_.volume(this.player_.volume() + 0.1); + } + + /** + * Decrease volume level for keyboard users + */ + stepBack() { + this.checkMuted(); + this.player_.volume(this.player_.volume() - 0.1); + } + + /** + * Update ARIA accessibility attributes + * + * @param {Event} [event] + * The `volumechange` event that caused this function to run. + * + * @listens Player#volumechange + */ + updateARIAAttributes(event) { + const ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_(); + this.el_.setAttribute('aria-valuenow', ariaValue); + this.el_.setAttribute('aria-valuetext', ariaValue + '%'); + } + + /** + * Returns the current value of the player volume as a percentage + * + * @private + */ + volumeAsPercentage_() { + return Math.round(this.player_.volume() * 100); + } + + /** + * When user starts dragging the VolumeBar, store the volume and listen for + * the end of the drag. When the drag ends, if the volume was set to zero, + * set lastVolume to the stored volume. + * + * @listens slideractive + * @private + */ + updateLastVolume_() { + const volumeBeforeDrag = this.player_.volume(); + this.one('sliderinactive', () => { + if (this.player_.volume() === 0) { + this.player_.lastVolume_(volumeBeforeDrag); + } + }); + } + } + + /** + * Default options for the `VolumeBar` + * + * @type {Object} + * @private + */ + VolumeBar.prototype.options_ = { + children: ['volumeLevel'], + barName: 'volumeLevel' + }; + + // MouseVolumeLevelDisplay tooltip should not be added to a player on mobile devices + if (!IS_IOS && !IS_ANDROID) { + VolumeBar.prototype.options_.children.splice(0, 0, 'mouseVolumeLevelDisplay'); + } + + /** + * Call the update event for this Slider when this event happens on the player. + * + * @type {string} + */ + VolumeBar.prototype.playerEvent = 'volumechange'; + Component.registerComponent('VolumeBar', VolumeBar); + + /** + * @file volume-control.js + */ + + /** + * The component for controlling the volume level + * + * @extends Component + */ + class VolumeControl extends Component { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options={}] + * The key/value store of player options. + */ + constructor(player, options = {}) { + options.vertical = options.vertical || false; + + // Pass the vertical option down to the VolumeBar if + // the VolumeBar is turned on. + if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) { + options.volumeBar = options.volumeBar || {}; + options.volumeBar.vertical = options.vertical; + } + super(player, options); + + // hide this control if volume support is missing + checkVolumeSupport(this, player); + this.throttledHandleMouseMove = throttle(bind_(this, this.handleMouseMove), UPDATE_REFRESH_INTERVAL); + this.handleMouseUpHandler_ = e => this.handleMouseUp(e); + this.on('mousedown', e => this.handleMouseDown(e)); + this.on('touchstart', e => this.handleMouseDown(e)); + this.on('mousemove', e => this.handleMouseMove(e)); + + // while the slider is active (the mouse has been pressed down and + // is dragging) or in focus we do not want to hide the VolumeBar + this.on(this.volumeBar, ['focus', 'slideractive'], () => { + this.volumeBar.addClass('vjs-slider-active'); + this.addClass('vjs-slider-active'); + this.trigger('slideractive'); + }); + this.on(this.volumeBar, ['blur', 'sliderinactive'], () => { + this.volumeBar.removeClass('vjs-slider-active'); + this.removeClass('vjs-slider-active'); + this.trigger('sliderinactive'); + }); + } + + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + let orientationClass = 'vjs-volume-horizontal'; + if (this.options_.vertical) { + orientationClass = 'vjs-volume-vertical'; + } + return super.createEl('div', { + className: `vjs-volume-control vjs-control ${orientationClass}` + }); + } + + /** + * Handle `mousedown` or `touchstart` events on the `VolumeControl`. + * + * @param {Event} event + * `mousedown` or `touchstart` event that triggered this function + * + * @listens mousedown + * @listens touchstart + */ + handleMouseDown(event) { + const doc = this.el_.ownerDocument; + this.on(doc, 'mousemove', this.throttledHandleMouseMove); + this.on(doc, 'touchmove', this.throttledHandleMouseMove); + this.on(doc, 'mouseup', this.handleMouseUpHandler_); + this.on(doc, 'touchend', this.handleMouseUpHandler_); + } + + /** + * Handle `mouseup` or `touchend` events on the `VolumeControl`. + * + * @param {Event} event + * `mouseup` or `touchend` event that triggered this function. + * + * @listens touchend + * @listens mouseup + */ + handleMouseUp(event) { + const doc = this.el_.ownerDocument; + this.off(doc, 'mousemove', this.throttledHandleMouseMove); + this.off(doc, 'touchmove', this.throttledHandleMouseMove); + this.off(doc, 'mouseup', this.handleMouseUpHandler_); + this.off(doc, 'touchend', this.handleMouseUpHandler_); + } + + /** + * Handle `mousedown` or `touchstart` events on the `VolumeControl`. + * + * @param {Event} event + * `mousedown` or `touchstart` event that triggered this function + * + * @listens mousedown + * @listens touchstart + */ + handleMouseMove(event) { + this.volumeBar.handleMouseMove(event); + } + } + + /** + * Default options for the `VolumeControl` + * + * @type {Object} + * @private + */ + VolumeControl.prototype.options_ = { + children: ['volumeBar'] + }; + Component.registerComponent('VolumeControl', VolumeControl); + + /** + * Check if muting volume is supported and if it isn't hide the mute toggle + * button. + * + * @param { import('../../component').default } self + * A reference to the mute toggle button + * + * @param { import('../../player').default } player + * A reference to the player + * + * @private + */ + const checkMuteSupport = function (self, player) { + // hide mute toggle button if it's not supported by the current tech + if (player.tech_ && !player.tech_.featuresMuteControl) { + self.addClass('vjs-hidden'); + } + self.on(player, 'loadstart', function () { + if (!player.tech_.featuresMuteControl) { + self.addClass('vjs-hidden'); + } else { + self.removeClass('vjs-hidden'); + } + }); + }; + + /** + * @file mute-toggle.js + */ + + /** + * A button component for muting the audio. + * + * @extends Button + */ + class MuteToggle extends Button { + /** + * Creates an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + + // hide this control if volume support is missing + checkMuteSupport(this, player); + this.on(player, ['loadstart', 'volumechange'], e => this.update(e)); + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-mute-control ${super.buildCSSClass()}`; + } + + /** + * This gets called when an `MuteToggle` is "clicked". See + * {@link ClickableComponent} for more detailed information on what a click can be. + * + * @param {Event} [event] + * The `keydown`, `tap`, or `click` event that caused this function to be + * called. + * + * @listens tap + * @listens click + */ + handleClick(event) { + const vol = this.player_.volume(); + const lastVolume = this.player_.lastVolume_(); + if (vol === 0) { + const volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume; + this.player_.volume(volumeToSet); + this.player_.muted(false); + } else { + this.player_.muted(this.player_.muted() ? false : true); + } + } + + /** + * Update the `MuteToggle` button based on the state of `volume` and `muted` + * on the player. + * + * @param {Event} [event] + * The {@link Player#loadstart} event if this function was called + * through an event. + * + * @listens Player#loadstart + * @listens Player#volumechange + */ + update(event) { + this.updateIcon_(); + this.updateControlText_(); + } + + /** + * Update the appearance of the `MuteToggle` icon. + * + * Possible states (given `level` variable below): + * - 0: crossed out + * - 1: zero bars of volume + * - 2: one bar of volume + * - 3: two bars of volume + * + * @private + */ + updateIcon_() { + const vol = this.player_.volume(); + let level = 3; + this.setIcon('volume-high'); + + // in iOS when a player is loaded with muted attribute + // and volume is changed with a native mute button + // we want to make sure muted state is updated + if (IS_IOS && this.player_.tech_ && this.player_.tech_.el_) { + this.player_.muted(this.player_.tech_.el_.muted); + } + if (vol === 0 || this.player_.muted()) { + this.setIcon('volume-mute'); + level = 0; + } else if (vol < 0.33) { + this.setIcon('volume-low'); + level = 1; + } else if (vol < 0.67) { + this.setIcon('volume-medium'); + level = 2; + } + removeClass(this.el_, [0, 1, 2, 3].reduce((str, i) => str + `${i ? ' ' : ''}vjs-vol-${i}`, '')); + addClass(this.el_, `vjs-vol-${level}`); + } + + /** + * If `muted` has changed on the player, update the control text + * (`title` attribute on `vjs-mute-control` element and content of + * `vjs-control-text` element). + * + * @private + */ + updateControlText_() { + const soundOff = this.player_.muted() || this.player_.volume() === 0; + const text = soundOff ? 'Unmute' : 'Mute'; + if (this.controlText() !== text) { + this.controlText(text); + } + } + } + + /** + * The text that should display over the `MuteToggle`s controls. Added for localization. + * + * @type {string} + * @protected + */ + MuteToggle.prototype.controlText_ = 'Mute'; + Component.registerComponent('MuteToggle', MuteToggle); + + /** + * @file volume-control.js + */ + + /** + * A Component to contain the MuteToggle and VolumeControl so that + * they can work together. + * + * @extends Component + */ + class VolumePanel extends Component { + /** + * Creates an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options={}] + * The key/value store of player options. + */ + constructor(player, options = {}) { + if (typeof options.inline !== 'undefined') { + options.inline = options.inline; + } else { + options.inline = true; + } + + // pass the inline option down to the VolumeControl as vertical if + // the VolumeControl is on. + if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) { + options.volumeControl = options.volumeControl || {}; + options.volumeControl.vertical = !options.inline; + } + super(player, options); + + // this handler is used by mouse handler methods below + this.handleKeyPressHandler_ = e => this.handleKeyPress(e); + this.on(player, ['loadstart'], e => this.volumePanelState_(e)); + this.on(this.muteToggle, 'keyup', e => this.handleKeyPress(e)); + this.on(this.volumeControl, 'keyup', e => this.handleVolumeControlKeyUp(e)); + this.on('keydown', e => this.handleKeyPress(e)); + this.on('mouseover', e => this.handleMouseOver(e)); + this.on('mouseout', e => this.handleMouseOut(e)); + + // while the slider is active (the mouse has been pressed down and + // is dragging) we do not want to hide the VolumeBar + this.on(this.volumeControl, ['slideractive'], this.sliderActive_); + this.on(this.volumeControl, ['sliderinactive'], this.sliderInactive_); + } + + /** + * Add vjs-slider-active class to the VolumePanel + * + * @listens VolumeControl#slideractive + * @private + */ + sliderActive_() { + this.addClass('vjs-slider-active'); + } + + /** + * Removes vjs-slider-active class to the VolumePanel + * + * @listens VolumeControl#sliderinactive + * @private + */ + sliderInactive_() { + this.removeClass('vjs-slider-active'); + } + + /** + * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel + * depending on MuteToggle and VolumeControl state + * + * @listens Player#loadstart + * @private + */ + volumePanelState_() { + // hide volume panel if neither volume control or mute toggle + // are displayed + if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) { + this.addClass('vjs-hidden'); + } + + // if only mute toggle is visible we don't want + // volume panel expanding when hovered or active + if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) { + this.addClass('vjs-mute-toggle-only'); + } + } + + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + let orientationClass = 'vjs-volume-panel-horizontal'; + if (!this.options_.inline) { + orientationClass = 'vjs-volume-panel-vertical'; + } + return super.createEl('div', { + className: `vjs-volume-panel vjs-control ${orientationClass}` + }); + } + + /** + * Dispose of the `volume-panel` and all child components. + */ + dispose() { + this.handleMouseOut(); + super.dispose(); + } + + /** + * Handles `keyup` events on the `VolumeControl`, looking for ESC, which closes + * the volume panel and sets focus on `MuteToggle`. + * + * @param {Event} event + * The `keyup` event that caused this function to be called. + * + * @listens keyup + */ + handleVolumeControlKeyUp(event) { + if (keycode.isEventKey(event, 'Esc')) { + this.muteToggle.focus(); + } + } + + /** + * This gets called when a `VolumePanel` gains hover via a `mouseover` event. + * Turns on listening for `mouseover` event. When they happen it + * calls `this.handleMouseOver`. + * + * @param {Event} event + * The `mouseover` event that caused this function to be called. + * + * @listens mouseover + */ + handleMouseOver(event) { + this.addClass('vjs-hover'); + on(document, 'keyup', this.handleKeyPressHandler_); + } + + /** + * This gets called when a `VolumePanel` gains hover via a `mouseout` event. + * Turns on listening for `mouseout` event. When they happen it + * calls `this.handleMouseOut`. + * + * @param {Event} event + * The `mouseout` event that caused this function to be called. + * + * @listens mouseout + */ + handleMouseOut(event) { + this.removeClass('vjs-hover'); + off(document, 'keyup', this.handleKeyPressHandler_); + } + + /** + * Handles `keyup` event on the document or `keydown` event on the `VolumePanel`, + * looking for ESC, which hides the `VolumeControl`. + * + * @param {Event} event + * The keypress that triggered this event. + * + * @listens keydown | keyup + */ + handleKeyPress(event) { + if (keycode.isEventKey(event, 'Esc')) { + this.handleMouseOut(); + } + } + } + + /** + * Default options for the `VolumeControl` + * + * @type {Object} + * @private + */ + VolumePanel.prototype.options_ = { + children: ['muteToggle', 'volumeControl'] + }; + Component.registerComponent('VolumePanel', VolumePanel); + + /** + * Button to skip forward a configurable amount of time + * through a video. Renders in the control bar. + * + * e.g. options: {controlBar: {skipButtons: forward: 5}} + * + * @extends Button + */ + class SkipForward extends Button { + constructor(player, options) { + super(player, options); + this.validOptions = [5, 10, 30]; + this.skipTime = this.getSkipForwardTime(); + if (this.skipTime && this.validOptions.includes(this.skipTime)) { + this.setIcon(`forward-${this.skipTime}`); + this.controlText(this.localize('Skip forward {1} seconds', [this.skipTime.toLocaleString(player.language())])); + this.show(); + } else { + this.hide(); + } + } + getSkipForwardTime() { + const playerOptions = this.options_.playerOptions; + return playerOptions.controlBar && playerOptions.controlBar.skipButtons && playerOptions.controlBar.skipButtons.forward; + } + buildCSSClass() { + return `vjs-skip-forward-${this.getSkipForwardTime()} ${super.buildCSSClass()}`; + } + + /** + * On click, skips forward in the duration/seekable range by a configurable amount of seconds. + * If the time left in the duration/seekable range is less than the configured 'skip forward' time, + * skips to end of duration/seekable range. + * + * Handle a click on a `SkipForward` button + * + * @param {EventTarget~Event} event + * The `click` event that caused this function + * to be called + */ + handleClick(event) { + if (isNaN(this.player_.duration())) { + return; + } + const currentVideoTime = this.player_.currentTime(); + const liveTracker = this.player_.liveTracker; + const duration = liveTracker && liveTracker.isLive() ? liveTracker.seekableEnd() : this.player_.duration(); + let newTime; + if (currentVideoTime + this.skipTime <= duration) { + newTime = currentVideoTime + this.skipTime; + } else { + newTime = duration; + } + this.player_.currentTime(newTime); + } + + /** + * Update control text on languagechange + */ + handleLanguagechange() { + this.controlText(this.localize('Skip forward {1} seconds', [this.skipTime])); + } + } + SkipForward.prototype.controlText_ = 'Skip Forward'; + Component.registerComponent('SkipForward', SkipForward); + + /** + * Button to skip backward a configurable amount of time + * through a video. Renders in the control bar. + * + * * e.g. options: {controlBar: {skipButtons: backward: 5}} + * + * @extends Button + */ + class SkipBackward extends Button { + constructor(player, options) { + super(player, options); + this.validOptions = [5, 10, 30]; + this.skipTime = this.getSkipBackwardTime(); + if (this.skipTime && this.validOptions.includes(this.skipTime)) { + this.setIcon(`replay-${this.skipTime}`); + this.controlText(this.localize('Skip backward {1} seconds', [this.skipTime.toLocaleString(player.language())])); + this.show(); + } else { + this.hide(); + } + } + getSkipBackwardTime() { + const playerOptions = this.options_.playerOptions; + return playerOptions.controlBar && playerOptions.controlBar.skipButtons && playerOptions.controlBar.skipButtons.backward; + } + buildCSSClass() { + return `vjs-skip-backward-${this.getSkipBackwardTime()} ${super.buildCSSClass()}`; + } + + /** + * On click, skips backward in the video by a configurable amount of seconds. + * If the current time in the video is less than the configured 'skip backward' time, + * skips to beginning of video or seekable range. + * + * Handle a click on a `SkipBackward` button + * + * @param {EventTarget~Event} event + * The `click` event that caused this function + * to be called + */ + handleClick(event) { + const currentVideoTime = this.player_.currentTime(); + const liveTracker = this.player_.liveTracker; + const seekableStart = liveTracker && liveTracker.isLive() && liveTracker.seekableStart(); + let newTime; + if (seekableStart && currentVideoTime - this.skipTime <= seekableStart) { + newTime = seekableStart; + } else if (currentVideoTime >= this.skipTime) { + newTime = currentVideoTime - this.skipTime; + } else { + newTime = 0; + } + this.player_.currentTime(newTime); + } + + /** + * Update control text on languagechange + */ + handleLanguagechange() { + this.controlText(this.localize('Skip backward {1} seconds', [this.skipTime])); + } + } + SkipBackward.prototype.controlText_ = 'Skip Backward'; + Component.registerComponent('SkipBackward', SkipBackward); + + /** + * @file menu.js + */ + + /** + * The Menu component is used to build popup menus, including subtitle and + * captions selection menus. + * + * @extends Component + */ + class Menu extends Component { + /** + * Create an instance of this class. + * + * @param { import('../player').default } player + * the player that this component should attach to + * + * @param {Object} [options] + * Object of option names and values + * + */ + constructor(player, options) { + super(player, options); + if (options) { + this.menuButton_ = options.menuButton; + } + this.focusedChild_ = -1; + this.on('keydown', e => this.handleKeyDown(e)); + + // All the menu item instances share the same blur handler provided by the menu container. + this.boundHandleBlur_ = e => this.handleBlur(e); + this.boundHandleTapClick_ = e => this.handleTapClick(e); + } + + /** + * Add event listeners to the {@link MenuItem}. + * + * @param {Object} component + * The instance of the `MenuItem` to add listeners to. + * + */ + addEventListenerForItem(component) { + if (!(component instanceof Component)) { + return; + } + this.on(component, 'blur', this.boundHandleBlur_); + this.on(component, ['tap', 'click'], this.boundHandleTapClick_); + } + + /** + * Remove event listeners from the {@link MenuItem}. + * + * @param {Object} component + * The instance of the `MenuItem` to remove listeners. + * + */ + removeEventListenerForItem(component) { + if (!(component instanceof Component)) { + return; + } + this.off(component, 'blur', this.boundHandleBlur_); + this.off(component, ['tap', 'click'], this.boundHandleTapClick_); + } + + /** + * This method will be called indirectly when the component has been added + * before the component adds to the new menu instance by `addItem`. + * In this case, the original menu instance will remove the component + * by calling `removeChild`. + * + * @param {Object} component + * The instance of the `MenuItem` + */ + removeChild(component) { + if (typeof component === 'string') { + component = this.getChild(component); + } + this.removeEventListenerForItem(component); + super.removeChild(component); + } + + /** + * Add a {@link MenuItem} to the menu. + * + * @param {Object|string} component + * The name or instance of the `MenuItem` to add. + * + */ + addItem(component) { + const childComponent = this.addChild(component); + if (childComponent) { + this.addEventListenerForItem(childComponent); + } + } + + /** + * Create the `Menu`s DOM element. + * + * @return {Element} + * the element that was created + */ + createEl() { + const contentElType = this.options_.contentElType || 'ul'; + this.contentEl_ = createEl(contentElType, { + className: 'vjs-menu-content' + }); + this.contentEl_.setAttribute('role', 'menu'); + const el = super.createEl('div', { + append: this.contentEl_, + className: 'vjs-menu' + }); + el.appendChild(this.contentEl_); + + // Prevent clicks from bubbling up. Needed for Menu Buttons, + // where a click on the parent is significant + on(el, 'click', function (event) { + event.preventDefault(); + event.stopImmediatePropagation(); + }); + return el; + } + dispose() { + this.contentEl_ = null; + this.boundHandleBlur_ = null; + this.boundHandleTapClick_ = null; + super.dispose(); + } + + /** + * Called when a `MenuItem` loses focus. + * + * @param {Event} event + * The `blur` event that caused this function to be called. + * + * @listens blur + */ + handleBlur(event) { + const relatedTarget = event.relatedTarget || document.activeElement; + + // Close menu popup when a user clicks outside the menu + if (!this.children().some(element => { + return element.el() === relatedTarget; + })) { + const btn = this.menuButton_; + if (btn && btn.buttonPressed_ && relatedTarget !== btn.el().firstChild) { + btn.unpressButton(); + } + } + } + + /** + * Called when a `MenuItem` gets clicked or tapped. + * + * @param {Event} event + * The `click` or `tap` event that caused this function to be called. + * + * @listens click,tap + */ + handleTapClick(event) { + // Unpress the associated MenuButton, and move focus back to it + if (this.menuButton_) { + this.menuButton_.unpressButton(); + const childComponents = this.children(); + if (!Array.isArray(childComponents)) { + return; + } + const foundComponent = childComponents.filter(component => component.el() === event.target)[0]; + if (!foundComponent) { + return; + } + + // don't focus menu button if item is a caption settings item + // because focus will move elsewhere + if (foundComponent.name() !== 'CaptionSettingsMenuItem') { + this.menuButton_.focus(); + } + } + } + + /** + * Handle a `keydown` event on this menu. This listener is added in the constructor. + * + * @param {KeyboardEvent} event + * A `keydown` event that happened on the menu. + * + * @listens keydown + */ + handleKeyDown(event) { + // Left and Down Arrows + if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) { + event.preventDefault(); + event.stopPropagation(); + this.stepForward(); + + // Up and Right Arrows + } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) { + event.preventDefault(); + event.stopPropagation(); + this.stepBack(); + } + } + + /** + * Move to next (lower) menu item for keyboard users. + */ + stepForward() { + let stepChild = 0; + if (this.focusedChild_ !== undefined) { + stepChild = this.focusedChild_ + 1; + } + this.focus(stepChild); + } + + /** + * Move to previous (higher) menu item for keyboard users. + */ + stepBack() { + let stepChild = 0; + if (this.focusedChild_ !== undefined) { + stepChild = this.focusedChild_ - 1; + } + this.focus(stepChild); + } + + /** + * Set focus on a {@link MenuItem} in the `Menu`. + * + * @param {Object|string} [item=0] + * Index of child item set focus on. + */ + focus(item = 0) { + const children = this.children().slice(); + const haveTitle = children.length && children[0].hasClass('vjs-menu-title'); + if (haveTitle) { + children.shift(); + } + if (children.length > 0) { + if (item < 0) { + item = 0; + } else if (item >= children.length) { + item = children.length - 1; + } + this.focusedChild_ = item; + children[item].el_.focus(); + } + } + } + Component.registerComponent('Menu', Menu); + + /** + * @file menu-button.js + */ + + /** + * A `MenuButton` class for any popup {@link Menu}. + * + * @extends Component + */ + class MenuButton extends Component { + /** + * Creates an instance of this class. + * + * @param { import('../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options={}] + * The key/value store of player options. + */ + constructor(player, options = {}) { + super(player, options); + this.menuButton_ = new Button(player, options); + this.menuButton_.controlText(this.controlText_); + this.menuButton_.el_.setAttribute('aria-haspopup', 'true'); + + // Add buildCSSClass values to the button, not the wrapper + const buttonClass = Button.prototype.buildCSSClass(); + this.menuButton_.el_.className = this.buildCSSClass() + ' ' + buttonClass; + this.menuButton_.removeClass('vjs-control'); + this.addChild(this.menuButton_); + this.update(); + this.enabled_ = true; + const handleClick = e => this.handleClick(e); + this.handleMenuKeyUp_ = e => this.handleMenuKeyUp(e); + this.on(this.menuButton_, 'tap', handleClick); + this.on(this.menuButton_, 'click', handleClick); + this.on(this.menuButton_, 'keydown', e => this.handleKeyDown(e)); + this.on(this.menuButton_, 'mouseenter', () => { + this.addClass('vjs-hover'); + this.menu.show(); + on(document, 'keyup', this.handleMenuKeyUp_); + }); + this.on('mouseleave', e => this.handleMouseLeave(e)); + this.on('keydown', e => this.handleSubmenuKeyDown(e)); + } + + /** + * Update the menu based on the current state of its items. + */ + update() { + const menu = this.createMenu(); + if (this.menu) { + this.menu.dispose(); + this.removeChild(this.menu); + } + this.menu = menu; + this.addChild(menu); + + /** + * Track the state of the menu button + * + * @type {Boolean} + * @private + */ + this.buttonPressed_ = false; + this.menuButton_.el_.setAttribute('aria-expanded', 'false'); + if (this.items && this.items.length <= this.hideThreshold_) { + this.hide(); + this.menu.contentEl_.removeAttribute('role'); + } else { + this.show(); + this.menu.contentEl_.setAttribute('role', 'menu'); + } + } + + /** + * Create the menu and add all items to it. + * + * @return {Menu} + * The constructed menu + */ + createMenu() { + const menu = new Menu(this.player_, { + menuButton: this + }); + + /** + * Hide the menu if the number of items is less than or equal to this threshold. This defaults + * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list + * it here because every time we run `createMenu` we need to reset the value. + * + * @protected + * @type {Number} + */ + this.hideThreshold_ = 0; + + // Add a title list item to the top + if (this.options_.title) { + const titleEl = createEl('li', { + className: 'vjs-menu-title', + textContent: toTitleCase(this.options_.title), + tabIndex: -1 + }); + const titleComponent = new Component(this.player_, { + el: titleEl + }); + menu.addItem(titleComponent); + } + this.items = this.createItems(); + if (this.items) { + // Add menu items to the menu + for (let i = 0; i < this.items.length; i++) { + menu.addItem(this.items[i]); + } + } + return menu; + } + + /** + * Create the list of menu items. Specific to each subclass. + * + * @abstract + */ + createItems() {} + + /** + * Create the `MenuButtons`s DOM element. + * + * @return {Element} + * The element that gets created. + */ + createEl() { + return super.createEl('div', { + className: this.buildWrapperCSSClass() + }, {}); + } + + /** + * Overwrites the `setIcon` method from `Component`. + * In this case, we want the icon to be appended to the menuButton. + * + * @param {string} name + * The icon name to be added. + */ + setIcon(name) { + super.setIcon(name, this.menuButton_.el_); + } + + /** + * Allow sub components to stack CSS class names for the wrapper element + * + * @return {string} + * The constructed wrapper DOM `className` + */ + buildWrapperCSSClass() { + let menuButtonClass = 'vjs-menu-button'; + + // If the inline option is passed, we want to use different styles altogether. + if (this.options_.inline === true) { + menuButtonClass += '-inline'; + } else { + menuButtonClass += '-popup'; + } + + // TODO: Fix the CSS so that this isn't necessary + const buttonClass = Button.prototype.buildCSSClass(); + return `vjs-menu-button ${menuButtonClass} ${buttonClass} ${super.buildCSSClass()}`; + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + let menuButtonClass = 'vjs-menu-button'; + + // If the inline option is passed, we want to use different styles altogether. + if (this.options_.inline === true) { + menuButtonClass += '-inline'; + } else { + menuButtonClass += '-popup'; + } + return `vjs-menu-button ${menuButtonClass} ${super.buildCSSClass()}`; + } + + /** + * Get or set the localized control text that will be used for accessibility. + * + * > NOTE: This will come from the internal `menuButton_` element. + * + * @param {string} [text] + * Control text for element. + * + * @param {Element} [el=this.menuButton_.el()] + * Element to set the title on. + * + * @return {string} + * - The control text when getting + */ + controlText(text, el = this.menuButton_.el()) { + return this.menuButton_.controlText(text, el); + } + + /** + * Dispose of the `menu-button` and all child components. + */ + dispose() { + this.handleMouseLeave(); + super.dispose(); + } + + /** + * Handle a click on a `MenuButton`. + * See {@link ClickableComponent#handleClick} for instances where this is called. + * + * @param {Event} event + * The `keydown`, `tap`, or `click` event that caused this function to be + * called. + * + * @listens tap + * @listens click + */ + handleClick(event) { + if (this.buttonPressed_) { + this.unpressButton(); + } else { + this.pressButton(); + } + } + + /** + * Handle `mouseleave` for `MenuButton`. + * + * @param {Event} event + * The `mouseleave` event that caused this function to be called. + * + * @listens mouseleave + */ + handleMouseLeave(event) { + this.removeClass('vjs-hover'); + off(document, 'keyup', this.handleMenuKeyUp_); + } + + /** + * Set the focus to the actual button, not to this element + */ + focus() { + this.menuButton_.focus(); + } + + /** + * Remove the focus from the actual button, not this element + */ + blur() { + this.menuButton_.blur(); + } + + /** + * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See + * {@link ClickableComponent#handleKeyDown} for instances where this is called. + * + * @param {Event} event + * The `keydown` event that caused this function to be called. + * + * @listens keydown + */ + handleKeyDown(event) { + // Escape or Tab unpress the 'button' + if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) { + if (this.buttonPressed_) { + this.unpressButton(); + } + + // Don't preventDefault for Tab key - we still want to lose focus + if (!keycode.isEventKey(event, 'Tab')) { + event.preventDefault(); + // Set focus back to the menu button's button + this.menuButton_.focus(); + } + // Up Arrow or Down Arrow also 'press' the button to open the menu + } else if (keycode.isEventKey(event, 'Up') || keycode.isEventKey(event, 'Down')) { + if (!this.buttonPressed_) { + event.preventDefault(); + this.pressButton(); + } + } + } + + /** + * Handle a `keyup` event on a `MenuButton`. The listener for this is added in + * the constructor. + * + * @param {Event} event + * Key press event + * + * @listens keyup + */ + handleMenuKeyUp(event) { + // Escape hides popup menu + if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) { + this.removeClass('vjs-hover'); + } + } + + /** + * This method name now delegates to `handleSubmenuKeyDown`. This means + * anyone calling `handleSubmenuKeyPress` will not see their method calls + * stop working. + * + * @param {Event} event + * The event that caused this function to be called. + */ + handleSubmenuKeyPress(event) { + this.handleSubmenuKeyDown(event); + } + + /** + * Handle a `keydown` event on a sub-menu. The listener for this is added in + * the constructor. + * + * @param {Event} event + * Key press event + * + * @listens keydown + */ + handleSubmenuKeyDown(event) { + // Escape or Tab unpress the 'button' + if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) { + if (this.buttonPressed_) { + this.unpressButton(); + } + // Don't preventDefault for Tab key - we still want to lose focus + if (!keycode.isEventKey(event, 'Tab')) { + event.preventDefault(); + // Set focus back to the menu button's button + this.menuButton_.focus(); + } + } + } + + /** + * Put the current `MenuButton` into a pressed state. + */ + pressButton() { + if (this.enabled_) { + this.buttonPressed_ = true; + this.menu.show(); + this.menu.lockShowing(); + this.menuButton_.el_.setAttribute('aria-expanded', 'true'); + + // set the focus into the submenu, except on iOS where it is resulting in + // undesired scrolling behavior when the player is in an iframe + if (IS_IOS && isInFrame()) { + // Return early so that the menu isn't focused + return; + } + this.menu.focus(); + } + } + + /** + * Take the current `MenuButton` out of a pressed state. + */ + unpressButton() { + if (this.enabled_) { + this.buttonPressed_ = false; + this.menu.unlockShowing(); + this.menu.hide(); + this.menuButton_.el_.setAttribute('aria-expanded', 'false'); + } + } + + /** + * Disable the `MenuButton`. Don't allow it to be clicked. + */ + disable() { + this.unpressButton(); + this.enabled_ = false; + this.addClass('vjs-disabled'); + this.menuButton_.disable(); + } + + /** + * Enable the `MenuButton`. Allow it to be clicked. + */ + enable() { + this.enabled_ = true; + this.removeClass('vjs-disabled'); + this.menuButton_.enable(); + } + } + Component.registerComponent('MenuButton', MenuButton); + + /** + * @file track-button.js + */ + + /** + * The base class for buttons that toggle specific track types (e.g. subtitles). + * + * @extends MenuButton + */ + class TrackButton extends MenuButton { + /** + * Creates an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + const tracks = options.tracks; + super(player, options); + if (this.items.length <= 1) { + this.hide(); + } + if (!tracks) { + return; + } + const updateHandler = bind_(this, this.update); + tracks.addEventListener('removetrack', updateHandler); + tracks.addEventListener('addtrack', updateHandler); + tracks.addEventListener('labelchange', updateHandler); + this.player_.on('ready', updateHandler); + this.player_.on('dispose', function () { + tracks.removeEventListener('removetrack', updateHandler); + tracks.removeEventListener('addtrack', updateHandler); + tracks.removeEventListener('labelchange', updateHandler); + }); + } + } + Component.registerComponent('TrackButton', TrackButton); + + /** + * @file menu-keys.js + */ + + /** + * All keys used for operation of a menu (`MenuButton`, `Menu`, and `MenuItem`) + * Note that 'Enter' and 'Space' are not included here (otherwise they would + * prevent the `MenuButton` and `MenuItem` from being keyboard-clickable) + * + * @typedef MenuKeys + * @array + */ + const MenuKeys = ['Tab', 'Esc', 'Up', 'Down', 'Right', 'Left']; + + /** + * @file menu-item.js + */ + + /** + * The component for a menu item. `<li>` + * + * @extends ClickableComponent + */ + class MenuItem extends ClickableComponent { + /** + * Creates an instance of the this class. + * + * @param { import('../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options={}] + * The key/value store of player options. + * + */ + constructor(player, options) { + super(player, options); + this.selectable = options.selectable; + this.isSelected_ = options.selected || false; + this.multiSelectable = options.multiSelectable; + this.selected(this.isSelected_); + if (this.selectable) { + if (this.multiSelectable) { + this.el_.setAttribute('role', 'menuitemcheckbox'); + } else { + this.el_.setAttribute('role', 'menuitemradio'); + } + } else { + this.el_.setAttribute('role', 'menuitem'); + } + } + + /** + * Create the `MenuItem's DOM element + * + * @param {string} [type=li] + * Element's node type, not actually used, always set to `li`. + * + * @param {Object} [props={}] + * An object of properties that should be set on the element + * + * @param {Object} [attrs={}] + * An object of attributes that should be set on the element + * + * @return {Element} + * The element that gets created. + */ + createEl(type, props, attrs) { + // The control is textual, not just an icon + this.nonIconControl = true; + const el = super.createEl('li', Object.assign({ + className: 'vjs-menu-item', + tabIndex: -1 + }, props), attrs); + + // swap icon with menu item text. + const menuItemEl = createEl('span', { + className: 'vjs-menu-item-text', + textContent: this.localize(this.options_.label) + }); + + // If using SVG icons, the element with vjs-icon-placeholder will be added separately. + if (this.player_.options_.experimentalSvgIcons) { + el.appendChild(menuItemEl); + } else { + el.replaceChild(menuItemEl, el.querySelector('.vjs-icon-placeholder')); + } + return el; + } + + /** + * Ignore keys which are used by the menu, but pass any other ones up. See + * {@link ClickableComponent#handleKeyDown} for instances where this is called. + * + * @param {KeyboardEvent} event + * The `keydown` event that caused this function to be called. + * + * @listens keydown + */ + handleKeyDown(event) { + if (!MenuKeys.some(key => keycode.isEventKey(event, key))) { + // Pass keydown handling up for unused keys + super.handleKeyDown(event); + } + } + + /** + * Any click on a `MenuItem` puts it into the selected state. + * See {@link ClickableComponent#handleClick} for instances where this is called. + * + * @param {Event} event + * The `keydown`, `tap`, or `click` event that caused this function to be + * called. + * + * @listens tap + * @listens click + */ + handleClick(event) { + this.selected(true); + } + + /** + * Set the state for this menu item as selected or not. + * + * @param {boolean} selected + * if the menu item is selected or not + */ + selected(selected) { + if (this.selectable) { + if (selected) { + this.addClass('vjs-selected'); + this.el_.setAttribute('aria-checked', 'true'); + // aria-checked isn't fully supported by browsers/screen readers, + // so indicate selected state to screen reader in the control text. + this.controlText(', selected'); + this.isSelected_ = true; + } else { + this.removeClass('vjs-selected'); + this.el_.setAttribute('aria-checked', 'false'); + // Indicate un-selected state to screen reader + this.controlText(''); + this.isSelected_ = false; + } + } + } + } + Component.registerComponent('MenuItem', MenuItem); + + /** + * @file text-track-menu-item.js + */ + + /** + * The specific menu item type for selecting a language within a text track kind + * + * @extends MenuItem + */ + class TextTrackMenuItem extends MenuItem { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + const track = options.track; + const tracks = player.textTracks(); + + // Modify options for parent MenuItem class's init. + options.label = track.label || track.language || 'Unknown'; + options.selected = track.mode === 'showing'; + super(player, options); + this.track = track; + // Determine the relevant kind(s) of tracks for this component and filter + // out empty kinds. + this.kinds = (options.kinds || [options.kind || this.track.kind]).filter(Boolean); + const changeHandler = (...args) => { + this.handleTracksChange.apply(this, args); + }; + const selectedLanguageChangeHandler = (...args) => { + this.handleSelectedLanguageChange.apply(this, args); + }; + player.on(['loadstart', 'texttrackchange'], changeHandler); + tracks.addEventListener('change', changeHandler); + tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler); + this.on('dispose', function () { + player.off(['loadstart', 'texttrackchange'], changeHandler); + tracks.removeEventListener('change', changeHandler); + tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler); + }); + + // iOS7 doesn't dispatch change events to TextTrackLists when an + // associated track's mode changes. Without something like + // Object.observe() (also not present on iOS7), it's not + // possible to detect changes to the mode attribute and polyfill + // the change event. As a poor substitute, we manually dispatch + // change events whenever the controls modify the mode. + if (tracks.onchange === undefined) { + let event; + this.on(['tap', 'click'], function () { + if (typeof window.Event !== 'object') { + // Android 2.3 throws an Illegal Constructor error for window.Event + try { + event = new window.Event('change'); + } catch (err) { + // continue regardless of error + } + } + if (!event) { + event = document.createEvent('Event'); + event.initEvent('change', true, true); + } + tracks.dispatchEvent(event); + }); + } + + // set the default state based on current tracks + this.handleTracksChange(); + } + + /** + * This gets called when an `TextTrackMenuItem` is "clicked". See + * {@link ClickableComponent} for more detailed information on what a click can be. + * + * @param {Event} event + * The `keydown`, `tap`, or `click` event that caused this function to be + * called. + * + * @listens tap + * @listens click + */ + handleClick(event) { + const referenceTrack = this.track; + const tracks = this.player_.textTracks(); + super.handleClick(event); + if (!tracks) { + return; + } + for (let i = 0; i < tracks.length; i++) { + const track = tracks[i]; + + // If the track from the text tracks list is not of the right kind, + // skip it. We do not want to affect tracks of incompatible kind(s). + if (this.kinds.indexOf(track.kind) === -1) { + continue; + } + + // If this text track is the component's track and it is not showing, + // set it to showing. + if (track === referenceTrack) { + if (track.mode !== 'showing') { + track.mode = 'showing'; + } + + // If this text track is not the component's track and it is not + // disabled, set it to disabled. + } else if (track.mode !== 'disabled') { + track.mode = 'disabled'; + } + } + } + + /** + * Handle text track list change + * + * @param {Event} event + * The `change` event that caused this function to be called. + * + * @listens TextTrackList#change + */ + handleTracksChange(event) { + const shouldBeSelected = this.track.mode === 'showing'; + + // Prevent redundant selected() calls because they may cause + // screen readers to read the appended control text unnecessarily + if (shouldBeSelected !== this.isSelected_) { + this.selected(shouldBeSelected); + } + } + handleSelectedLanguageChange(event) { + if (this.track.mode === 'showing') { + const selectedLanguage = this.player_.cache_.selectedLanguage; + + // Don't replace the kind of track across the same language + if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) { + return; + } + this.player_.cache_.selectedLanguage = { + enabled: true, + language: this.track.language, + kind: this.track.kind + }; + } + } + dispose() { + // remove reference to track object on dispose + this.track = null; + super.dispose(); + } + } + Component.registerComponent('TextTrackMenuItem', TextTrackMenuItem); + + /** + * @file off-text-track-menu-item.js + */ + + /** + * A special menu item for turning off a specific type of text track + * + * @extends TextTrackMenuItem + */ + class OffTextTrackMenuItem extends TextTrackMenuItem { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + // Create pseudo track info + // Requires options['kind'] + options.track = { + player, + // it is no longer necessary to store `kind` or `kinds` on the track itself + // since they are now stored in the `kinds` property of all instances of + // TextTrackMenuItem, but this will remain for backwards compatibility + kind: options.kind, + kinds: options.kinds, + default: false, + mode: 'disabled' + }; + if (!options.kinds) { + options.kinds = [options.kind]; + } + if (options.label) { + options.track.label = options.label; + } else { + options.track.label = options.kinds.join(' and ') + ' off'; + } + + // MenuItem is selectable + options.selectable = true; + // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time) + options.multiSelectable = false; + super(player, options); + } + + /** + * Handle text track change + * + * @param {Event} event + * The event that caused this function to run + */ + handleTracksChange(event) { + const tracks = this.player().textTracks(); + let shouldBeSelected = true; + for (let i = 0, l = tracks.length; i < l; i++) { + const track = tracks[i]; + if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') { + shouldBeSelected = false; + break; + } + } + + // Prevent redundant selected() calls because they may cause + // screen readers to read the appended control text unnecessarily + if (shouldBeSelected !== this.isSelected_) { + this.selected(shouldBeSelected); + } + } + handleSelectedLanguageChange(event) { + const tracks = this.player().textTracks(); + let allHidden = true; + for (let i = 0, l = tracks.length; i < l; i++) { + const track = tracks[i]; + if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') { + allHidden = false; + break; + } + } + if (allHidden) { + this.player_.cache_.selectedLanguage = { + enabled: false + }; + } + } + + /** + * Update control text and label on languagechange + */ + handleLanguagechange() { + this.$('.vjs-menu-item-text').textContent = this.player_.localize(this.options_.label); + super.handleLanguagechange(); + } + } + Component.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem); + + /** + * @file text-track-button.js + */ + + /** + * The base class for buttons that toggle specific text track types (e.g. subtitles) + * + * @extends MenuButton + */ + class TextTrackButton extends TrackButton { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options={}] + * The key/value store of player options. + */ + constructor(player, options = {}) { + options.tracks = player.textTracks(); + super(player, options); + } + + /** + * Create a menu item for each text track + * + * @param {TextTrackMenuItem[]} [items=[]] + * Existing array of items to use during creation + * + * @return {TextTrackMenuItem[]} + * Array of menu items that were created + */ + createItems(items = [], TrackMenuItem = TextTrackMenuItem) { + // Label is an override for the [track] off label + // USed to localise captions/subtitles + let label; + if (this.label_) { + label = `${this.label_} off`; + } + // Add an OFF menu item to turn all tracks off + items.push(new OffTextTrackMenuItem(this.player_, { + kinds: this.kinds_, + kind: this.kind_, + label + })); + this.hideThreshold_ += 1; + const tracks = this.player_.textTracks(); + if (!Array.isArray(this.kinds_)) { + this.kinds_ = [this.kind_]; + } + for (let i = 0; i < tracks.length; i++) { + const track = tracks[i]; + + // only add tracks that are of an appropriate kind and have a label + if (this.kinds_.indexOf(track.kind) > -1) { + const item = new TrackMenuItem(this.player_, { + track, + kinds: this.kinds_, + kind: this.kind_, + // MenuItem is selectable + selectable: true, + // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time) + multiSelectable: false + }); + item.addClass(`vjs-${track.kind}-menu-item`); + items.push(item); + } + } + return items; + } + } + Component.registerComponent('TextTrackButton', TextTrackButton); + + /** + * @file chapters-track-menu-item.js + */ + + /** + * The chapter track menu item + * + * @extends MenuItem + */ + class ChaptersTrackMenuItem extends MenuItem { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + const track = options.track; + const cue = options.cue; + const currentTime = player.currentTime(); + + // Modify options for parent MenuItem class's init. + options.selectable = true; + options.multiSelectable = false; + options.label = cue.text; + options.selected = cue.startTime <= currentTime && currentTime < cue.endTime; + super(player, options); + this.track = track; + this.cue = cue; + } + + /** + * This gets called when an `ChaptersTrackMenuItem` is "clicked". See + * {@link ClickableComponent} for more detailed information on what a click can be. + * + * @param {Event} [event] + * The `keydown`, `tap`, or `click` event that caused this function to be + * called. + * + * @listens tap + * @listens click + */ + handleClick(event) { + super.handleClick(); + this.player_.currentTime(this.cue.startTime); + } + } + Component.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem); + + /** + * @file chapters-button.js + */ + + /** + * The button component for toggling and selecting chapters + * Chapters act much differently than other text tracks + * Cues are navigation vs. other tracks of alternative languages + * + * @extends TextTrackButton + */ + class ChaptersButton extends TextTrackButton { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @param {Function} [ready] + * The function to call when this function is ready. + */ + constructor(player, options, ready) { + super(player, options, ready); + this.setIcon('chapters'); + this.selectCurrentItem_ = () => { + this.items.forEach(item => { + item.selected(this.track_.activeCues[0] === item.cue); + }); + }; + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-chapters-button ${super.buildCSSClass()}`; + } + buildWrapperCSSClass() { + return `vjs-chapters-button ${super.buildWrapperCSSClass()}`; + } + + /** + * Update the menu based on the current state of its items. + * + * @param {Event} [event] + * An event that triggered this function to run. + * + * @listens TextTrackList#addtrack + * @listens TextTrackList#removetrack + * @listens TextTrackList#change + */ + update(event) { + if (event && event.track && event.track.kind !== 'chapters') { + return; + } + const track = this.findChaptersTrack(); + if (track !== this.track_) { + this.setTrack(track); + super.update(); + } else if (!this.items || track && track.cues && track.cues.length !== this.items.length) { + // Update the menu initially or if the number of cues has changed since set + super.update(); + } + } + + /** + * Set the currently selected track for the chapters button. + * + * @param {TextTrack} track + * The new track to select. Nothing will change if this is the currently selected + * track. + */ + setTrack(track) { + if (this.track_ === track) { + return; + } + if (!this.updateHandler_) { + this.updateHandler_ = this.update.bind(this); + } + + // here this.track_ refers to the old track instance + if (this.track_) { + const remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_); + if (remoteTextTrackEl) { + remoteTextTrackEl.removeEventListener('load', this.updateHandler_); + } + this.track_.removeEventListener('cuechange', this.selectCurrentItem_); + this.track_ = null; + } + this.track_ = track; + + // here this.track_ refers to the new track instance + if (this.track_) { + this.track_.mode = 'hidden'; + const remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_); + if (remoteTextTrackEl) { + remoteTextTrackEl.addEventListener('load', this.updateHandler_); + } + this.track_.addEventListener('cuechange', this.selectCurrentItem_); + } + } + + /** + * Find the track object that is currently in use by this ChaptersButton + * + * @return {TextTrack|undefined} + * The current track or undefined if none was found. + */ + findChaptersTrack() { + const tracks = this.player_.textTracks() || []; + for (let i = tracks.length - 1; i >= 0; i--) { + // We will always choose the last track as our chaptersTrack + const track = tracks[i]; + if (track.kind === this.kind_) { + return track; + } + } + } + + /** + * Get the caption for the ChaptersButton based on the track label. This will also + * use the current tracks localized kind as a fallback if a label does not exist. + * + * @return {string} + * The tracks current label or the localized track kind. + */ + getMenuCaption() { + if (this.track_ && this.track_.label) { + return this.track_.label; + } + return this.localize(toTitleCase(this.kind_)); + } + + /** + * Create menu from chapter track + * + * @return { import('../../menu/menu').default } + * New menu for the chapter buttons + */ + createMenu() { + this.options_.title = this.getMenuCaption(); + return super.createMenu(); + } + + /** + * Create a menu item for each text track + * + * @return { import('./text-track-menu-item').default[] } + * Array of menu items + */ + createItems() { + const items = []; + if (!this.track_) { + return items; + } + const cues = this.track_.cues; + if (!cues) { + return items; + } + for (let i = 0, l = cues.length; i < l; i++) { + const cue = cues[i]; + const mi = new ChaptersTrackMenuItem(this.player_, { + track: this.track_, + cue + }); + items.push(mi); + } + return items; + } + } + + /** + * `kind` of TextTrack to look for to associate it with this menu. + * + * @type {string} + * @private + */ + ChaptersButton.prototype.kind_ = 'chapters'; + + /** + * The text that should display over the `ChaptersButton`s controls. Added for localization. + * + * @type {string} + * @protected + */ + ChaptersButton.prototype.controlText_ = 'Chapters'; + Component.registerComponent('ChaptersButton', ChaptersButton); + + /** + * @file descriptions-button.js + */ + + /** + * The button component for toggling and selecting descriptions + * + * @extends TextTrackButton + */ + class DescriptionsButton extends TextTrackButton { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @param {Function} [ready] + * The function to call when this component is ready. + */ + constructor(player, options, ready) { + super(player, options, ready); + this.setIcon('audio-description'); + const tracks = player.textTracks(); + const changeHandler = bind_(this, this.handleTracksChange); + tracks.addEventListener('change', changeHandler); + this.on('dispose', function () { + tracks.removeEventListener('change', changeHandler); + }); + } + + /** + * Handle text track change + * + * @param {Event} event + * The event that caused this function to run + * + * @listens TextTrackList#change + */ + handleTracksChange(event) { + const tracks = this.player().textTracks(); + let disabled = false; + + // Check whether a track of a different kind is showing + for (let i = 0, l = tracks.length; i < l; i++) { + const track = tracks[i]; + if (track.kind !== this.kind_ && track.mode === 'showing') { + disabled = true; + break; + } + } + + // If another track is showing, disable this menu button + if (disabled) { + this.disable(); + } else { + this.enable(); + } + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-descriptions-button ${super.buildCSSClass()}`; + } + buildWrapperCSSClass() { + return `vjs-descriptions-button ${super.buildWrapperCSSClass()}`; + } + } + + /** + * `kind` of TextTrack to look for to associate it with this menu. + * + * @type {string} + * @private + */ + DescriptionsButton.prototype.kind_ = 'descriptions'; + + /** + * The text that should display over the `DescriptionsButton`s controls. Added for localization. + * + * @type {string} + * @protected + */ + DescriptionsButton.prototype.controlText_ = 'Descriptions'; + Component.registerComponent('DescriptionsButton', DescriptionsButton); + + /** + * @file subtitles-button.js + */ + + /** + * The button component for toggling and selecting subtitles + * + * @extends TextTrackButton + */ + class SubtitlesButton extends TextTrackButton { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @param {Function} [ready] + * The function to call when this component is ready. + */ + constructor(player, options, ready) { + super(player, options, ready); + this.setIcon('subtitles'); + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-subtitles-button ${super.buildCSSClass()}`; + } + buildWrapperCSSClass() { + return `vjs-subtitles-button ${super.buildWrapperCSSClass()}`; + } + } + + /** + * `kind` of TextTrack to look for to associate it with this menu. + * + * @type {string} + * @private + */ + SubtitlesButton.prototype.kind_ = 'subtitles'; + + /** + * The text that should display over the `SubtitlesButton`s controls. Added for localization. + * + * @type {string} + * @protected + */ + SubtitlesButton.prototype.controlText_ = 'Subtitles'; + Component.registerComponent('SubtitlesButton', SubtitlesButton); + + /** + * @file caption-settings-menu-item.js + */ + + /** + * The menu item for caption track settings menu + * + * @extends TextTrackMenuItem + */ + class CaptionSettingsMenuItem extends TextTrackMenuItem { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + options.track = { + player, + kind: options.kind, + label: options.kind + ' settings', + selectable: false, + default: false, + mode: 'disabled' + }; + + // CaptionSettingsMenuItem has no concept of 'selected' + options.selectable = false; + options.name = 'CaptionSettingsMenuItem'; + super(player, options); + this.addClass('vjs-texttrack-settings'); + this.controlText(', opens ' + options.kind + ' settings dialog'); + } + + /** + * This gets called when an `CaptionSettingsMenuItem` is "clicked". See + * {@link ClickableComponent} for more detailed information on what a click can be. + * + * @param {Event} [event] + * The `keydown`, `tap`, or `click` event that caused this function to be + * called. + * + * @listens tap + * @listens click + */ + handleClick(event) { + this.player().getChild('textTrackSettings').open(); + } + + /** + * Update control text and label on languagechange + */ + handleLanguagechange() { + this.$('.vjs-menu-item-text').textContent = this.player_.localize(this.options_.kind + ' settings'); + super.handleLanguagechange(); + } + } + Component.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem); + + /** + * @file captions-button.js + */ + + /** + * The button component for toggling and selecting captions + * + * @extends TextTrackButton + */ + class CaptionsButton extends TextTrackButton { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @param {Function} [ready] + * The function to call when this component is ready. + */ + constructor(player, options, ready) { + super(player, options, ready); + this.setIcon('captions'); + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-captions-button ${super.buildCSSClass()}`; + } + buildWrapperCSSClass() { + return `vjs-captions-button ${super.buildWrapperCSSClass()}`; + } + + /** + * Create caption menu items + * + * @return {CaptionSettingsMenuItem[]} + * The array of current menu items. + */ + createItems() { + const items = []; + if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) { + items.push(new CaptionSettingsMenuItem(this.player_, { + kind: this.kind_ + })); + this.hideThreshold_ += 1; + } + return super.createItems(items); + } + } + + /** + * `kind` of TextTrack to look for to associate it with this menu. + * + * @type {string} + * @private + */ + CaptionsButton.prototype.kind_ = 'captions'; + + /** + * The text that should display over the `CaptionsButton`s controls. Added for localization. + * + * @type {string} + * @protected + */ + CaptionsButton.prototype.controlText_ = 'Captions'; + Component.registerComponent('CaptionsButton', CaptionsButton); + + /** + * @file subs-caps-menu-item.js + */ + + /** + * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles + * in the SubsCapsMenu. + * + * @extends TextTrackMenuItem + */ + class SubsCapsMenuItem extends TextTrackMenuItem { + createEl(type, props, attrs) { + const el = super.createEl(type, props, attrs); + const parentSpan = el.querySelector('.vjs-menu-item-text'); + if (this.options_.track.kind === 'captions') { + if (this.player_.options_.experimentalSvgIcons) { + this.setIcon('captions', el); + } else { + parentSpan.appendChild(createEl('span', { + className: 'vjs-icon-placeholder' + }, { + 'aria-hidden': true + })); + } + parentSpan.appendChild(createEl('span', { + className: 'vjs-control-text', + // space added as the text will visually flow with the + // label + textContent: ` ${this.localize('Captions')}` + })); + } + return el; + } + } + Component.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem); + + /** + * @file sub-caps-button.js + */ + + /** + * The button component for toggling and selecting captions and/or subtitles + * + * @extends TextTrackButton + */ + class SubsCapsButton extends TextTrackButton { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @param {Function} [ready] + * The function to call when this component is ready. + */ + constructor(player, options = {}) { + super(player, options); + + // Although North America uses "captions" in most cases for + // "captions and subtitles" other locales use "subtitles" + this.label_ = 'subtitles'; + this.setIcon('subtitles'); + if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(this.player_.language_) > -1) { + this.label_ = 'captions'; + this.setIcon('captions'); + } + this.menuButton_.controlText(toTitleCase(this.label_)); + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-subs-caps-button ${super.buildCSSClass()}`; + } + buildWrapperCSSClass() { + return `vjs-subs-caps-button ${super.buildWrapperCSSClass()}`; + } + + /** + * Create caption/subtitles menu items + * + * @return {CaptionSettingsMenuItem[]} + * The array of current menu items. + */ + createItems() { + let items = []; + if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) { + items.push(new CaptionSettingsMenuItem(this.player_, { + kind: this.label_ + })); + this.hideThreshold_ += 1; + } + items = super.createItems(items, SubsCapsMenuItem); + return items; + } + } + + /** + * `kind`s of TextTrack to look for to associate it with this menu. + * + * @type {array} + * @private + */ + SubsCapsButton.prototype.kinds_ = ['captions', 'subtitles']; + + /** + * The text that should display over the `SubsCapsButton`s controls. + * + * + * @type {string} + * @protected + */ + SubsCapsButton.prototype.controlText_ = 'Subtitles'; + Component.registerComponent('SubsCapsButton', SubsCapsButton); + + /** + * @file audio-track-menu-item.js + */ + + /** + * An {@link AudioTrack} {@link MenuItem} + * + * @extends MenuItem + */ + class AudioTrackMenuItem extends MenuItem { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + const track = options.track; + const tracks = player.audioTracks(); + + // Modify options for parent MenuItem class's init. + options.label = track.label || track.language || 'Unknown'; + options.selected = track.enabled; + super(player, options); + this.track = track; + this.addClass(`vjs-${track.kind}-menu-item`); + const changeHandler = (...args) => { + this.handleTracksChange.apply(this, args); + }; + tracks.addEventListener('change', changeHandler); + this.on('dispose', () => { + tracks.removeEventListener('change', changeHandler); + }); + } + createEl(type, props, attrs) { + const el = super.createEl(type, props, attrs); + const parentSpan = el.querySelector('.vjs-menu-item-text'); + if (['main-desc', 'description'].indexOf(this.options_.track.kind) >= 0) { + parentSpan.appendChild(createEl('span', { + className: 'vjs-icon-placeholder' + }, { + 'aria-hidden': true + })); + parentSpan.appendChild(createEl('span', { + className: 'vjs-control-text', + textContent: ' ' + this.localize('Descriptions') + })); + } + return el; + } + + /** + * This gets called when an `AudioTrackMenuItem is "clicked". See {@link ClickableComponent} + * for more detailed information on what a click can be. + * + * @param {Event} [event] + * The `keydown`, `tap`, or `click` event that caused this function to be + * called. + * + * @listens tap + * @listens click + */ + handleClick(event) { + super.handleClick(event); + + // the audio track list will automatically toggle other tracks + // off for us. + this.track.enabled = true; + + // when native audio tracks are used, we want to make sure that other tracks are turned off + if (this.player_.tech_.featuresNativeAudioTracks) { + const tracks = this.player_.audioTracks(); + for (let i = 0; i < tracks.length; i++) { + const track = tracks[i]; + + // skip the current track since we enabled it above + if (track === this.track) { + continue; + } + track.enabled = track === this.track; + } + } + } + + /** + * Handle any {@link AudioTrack} change. + * + * @param {Event} [event] + * The {@link AudioTrackList#change} event that caused this to run. + * + * @listens AudioTrackList#change + */ + handleTracksChange(event) { + this.selected(this.track.enabled); + } + } + Component.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem); + + /** + * @file audio-track-button.js + */ + + /** + * The base class for buttons that toggle specific {@link AudioTrack} types. + * + * @extends TrackButton + */ + class AudioTrackButton extends TrackButton { + /** + * Creates an instance of this class. + * + * @param {Player} player + * The `Player` that this class should be attached to. + * + * @param {Object} [options={}] + * The key/value store of player options. + */ + constructor(player, options = {}) { + options.tracks = player.audioTracks(); + super(player, options); + this.setIcon('audio'); + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-audio-button ${super.buildCSSClass()}`; + } + buildWrapperCSSClass() { + return `vjs-audio-button ${super.buildWrapperCSSClass()}`; + } + + /** + * Create a menu item for each audio track + * + * @param {AudioTrackMenuItem[]} [items=[]] + * An array of existing menu items to use. + * + * @return {AudioTrackMenuItem[]} + * An array of menu items + */ + createItems(items = []) { + // if there's only one audio track, there no point in showing it + this.hideThreshold_ = 1; + const tracks = this.player_.audioTracks(); + for (let i = 0; i < tracks.length; i++) { + const track = tracks[i]; + items.push(new AudioTrackMenuItem(this.player_, { + track, + // MenuItem is selectable + selectable: true, + // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time) + multiSelectable: false + })); + } + return items; + } + } + + /** + * The text that should display over the `AudioTrackButton`s controls. Added for localization. + * + * @type {string} + * @protected + */ + AudioTrackButton.prototype.controlText_ = 'Audio Track'; + Component.registerComponent('AudioTrackButton', AudioTrackButton); + + /** + * @file playback-rate-menu-item.js + */ + + /** + * The specific menu item type for selecting a playback rate. + * + * @extends MenuItem + */ + class PlaybackRateMenuItem extends MenuItem { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + const label = options.rate; + const rate = parseFloat(label, 10); + + // Modify options for parent MenuItem class's init. + options.label = label; + options.selected = rate === player.playbackRate(); + options.selectable = true; + options.multiSelectable = false; + super(player, options); + this.label = label; + this.rate = rate; + this.on(player, 'ratechange', e => this.update(e)); + } + + /** + * This gets called when an `PlaybackRateMenuItem` is "clicked". See + * {@link ClickableComponent} for more detailed information on what a click can be. + * + * @param {Event} [event] + * The `keydown`, `tap`, or `click` event that caused this function to be + * called. + * + * @listens tap + * @listens click + */ + handleClick(event) { + super.handleClick(); + this.player().playbackRate(this.rate); + } + + /** + * Update the PlaybackRateMenuItem when the playbackrate changes. + * + * @param {Event} [event] + * The `ratechange` event that caused this function to run. + * + * @listens Player#ratechange + */ + update(event) { + this.selected(this.player().playbackRate() === this.rate); + } + } + + /** + * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization. + * + * @type {string} + * @private + */ + PlaybackRateMenuItem.prototype.contentElType = 'button'; + Component.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem); + + /** + * @file playback-rate-menu-button.js + */ + + /** + * The component for controlling the playback rate. + * + * @extends MenuButton + */ + class PlaybackRateMenuButton extends MenuButton { + /** + * Creates an instance of this class. + * + * @param { import('../../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.menuButton_.el_.setAttribute('aria-describedby', this.labelElId_); + this.updateVisibility(); + this.updateLabel(); + this.on(player, 'loadstart', e => this.updateVisibility(e)); + this.on(player, 'ratechange', e => this.updateLabel(e)); + this.on(player, 'playbackrateschange', e => this.handlePlaybackRateschange(e)); + } + + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + const el = super.createEl(); + this.labelElId_ = 'vjs-playback-rate-value-label-' + this.id_; + this.labelEl_ = createEl('div', { + className: 'vjs-playback-rate-value', + id: this.labelElId_, + textContent: '1x' + }); + el.appendChild(this.labelEl_); + return el; + } + dispose() { + this.labelEl_ = null; + super.dispose(); + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-playback-rate ${super.buildCSSClass()}`; + } + buildWrapperCSSClass() { + return `vjs-playback-rate ${super.buildWrapperCSSClass()}`; + } + + /** + * Create the list of menu items. Specific to each subclass. + * + */ + createItems() { + const rates = this.playbackRates(); + const items = []; + for (let i = rates.length - 1; i >= 0; i--) { + items.push(new PlaybackRateMenuItem(this.player(), { + rate: rates[i] + 'x' + })); + } + return items; + } + + /** + * On playbackrateschange, update the menu to account for the new items. + * + * @listens Player#playbackrateschange + */ + handlePlaybackRateschange(event) { + this.update(); + } + + /** + * Get possible playback rates + * + * @return {Array} + * All possible playback rates + */ + playbackRates() { + const player = this.player(); + return player.playbackRates && player.playbackRates() || []; + } + + /** + * Get whether playback rates is supported by the tech + * and an array of playback rates exists + * + * @return {boolean} + * Whether changing playback rate is supported + */ + playbackRateSupported() { + return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0; + } + + /** + * Hide playback rate controls when they're no playback rate options to select + * + * @param {Event} [event] + * The event that caused this function to run. + * + * @listens Player#loadstart + */ + updateVisibility(event) { + if (this.playbackRateSupported()) { + this.removeClass('vjs-hidden'); + } else { + this.addClass('vjs-hidden'); + } + } + + /** + * Update button label when rate changed + * + * @param {Event} [event] + * The event that caused this function to run. + * + * @listens Player#ratechange + */ + updateLabel(event) { + if (this.playbackRateSupported()) { + this.labelEl_.textContent = this.player().playbackRate() + 'x'; + } + } + } + + /** + * The text that should display over the `PlaybackRateMenuButton`s controls. + * + * Added for localization. + * + * @type {string} + * @protected + */ + PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate'; + Component.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton); + + /** + * @file spacer.js + */ + + /** + * Just an empty spacer element that can be used as an append point for plugins, etc. + * Also can be used to create space between elements when necessary. + * + * @extends Component + */ + class Spacer extends Component { + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-spacer ${super.buildCSSClass()}`; + } + + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl(tag = 'div', props = {}, attributes = {}) { + if (!props.className) { + props.className = this.buildCSSClass(); + } + return super.createEl(tag, props, attributes); + } + } + Component.registerComponent('Spacer', Spacer); + + /** + * @file custom-control-spacer.js + */ + + /** + * Spacer specifically meant to be used as an insertion point for new plugins, etc. + * + * @extends Spacer + */ + class CustomControlSpacer extends Spacer { + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + */ + buildCSSClass() { + return `vjs-custom-control-spacer ${super.buildCSSClass()}`; + } + + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + return super.createEl('div', { + className: this.buildCSSClass(), + // No-flex/table-cell mode requires there be some content + // in the cell to fill the remaining space of the table. + textContent: '\u00a0' + }); + } + } + Component.registerComponent('CustomControlSpacer', CustomControlSpacer); + + /** + * @file control-bar.js + */ + + /** + * Container of main controls. + * + * @extends Component + */ + class ControlBar extends Component { + /** + * Create the `Component`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + return super.createEl('div', { + className: 'vjs-control-bar', + dir: 'ltr' + }); + } + } + + /** + * Default options for `ControlBar` + * + * @type {Object} + * @private + */ + ControlBar.prototype.options_ = { + children: ['playToggle', 'skipBackward', 'skipForward', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'seekToLive', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'pictureInPictureToggle', 'fullscreenToggle'] + }; + Component.registerComponent('ControlBar', ControlBar); + + /** + * @file error-display.js + */ + + /** + * A display that indicates an error has occurred. This means that the video + * is unplayable. + * + * @extends ModalDialog + */ + class ErrorDisplay extends ModalDialog { + /** + * Creates an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + super(player, options); + this.on(player, 'error', e => { + this.open(e); + }); + } + + /** + * Builds the default DOM `className`. + * + * @return {string} + * The DOM `className` for this object. + * + * @deprecated Since version 5. + */ + buildCSSClass() { + return `vjs-error-display ${super.buildCSSClass()}`; + } + + /** + * Gets the localized error message based on the `Player`s error. + * + * @return {string} + * The `Player`s error message localized or an empty string. + */ + content() { + const error = this.player().error(); + return error ? this.localize(error.message) : ''; + } + } + + /** + * The default options for an `ErrorDisplay`. + * + * @private + */ + ErrorDisplay.prototype.options_ = Object.assign({}, ModalDialog.prototype.options_, { + pauseOnOpen: false, + fillAlways: true, + temporary: false, + uncloseable: true + }); + Component.registerComponent('ErrorDisplay', ErrorDisplay); + + /** + * @file text-track-settings.js + */ + const LOCAL_STORAGE_KEY = 'vjs-text-track-settings'; + const COLOR_BLACK = ['#000', 'Black']; + const COLOR_BLUE = ['#00F', 'Blue']; + const COLOR_CYAN = ['#0FF', 'Cyan']; + const COLOR_GREEN = ['#0F0', 'Green']; + const COLOR_MAGENTA = ['#F0F', 'Magenta']; + const COLOR_RED = ['#F00', 'Red']; + const COLOR_WHITE = ['#FFF', 'White']; + const COLOR_YELLOW = ['#FF0', 'Yellow']; + const OPACITY_OPAQUE = ['1', 'Opaque']; + const OPACITY_SEMI = ['0.5', 'Semi-Transparent']; + const OPACITY_TRANS = ['0', 'Transparent']; + + // Configuration for the various <select> elements in the DOM of this component. + // + // Possible keys include: + // + // `default`: + // The default option index. Only needs to be provided if not zero. + // `parser`: + // A function which is used to parse the value from the selected option in + // a customized way. + // `selector`: + // The selector used to find the associated <select> element. + const selectConfigs = { + backgroundColor: { + selector: '.vjs-bg-color > select', + id: 'captions-background-color-%s', + label: 'Color', + options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN] + }, + backgroundOpacity: { + selector: '.vjs-bg-opacity > select', + id: 'captions-background-opacity-%s', + label: 'Opacity', + options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS] + }, + color: { + selector: '.vjs-text-color > select', + id: 'captions-foreground-color-%s', + label: 'Color', + options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN] + }, + edgeStyle: { + selector: '.vjs-edge-style > select', + id: '%s', + label: 'Text Edge Style', + options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Drop shadow']] + }, + fontFamily: { + selector: '.vjs-font-family > select', + id: 'captions-font-family-%s', + label: 'Font Family', + options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']] + }, + fontPercent: { + selector: '.vjs-font-percent > select', + id: 'captions-font-size-%s', + label: 'Font Size', + 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%']], + default: 2, + parser: v => v === '1.00' ? null : Number(v) + }, + textOpacity: { + selector: '.vjs-text-opacity > select', + id: 'captions-foreground-opacity-%s', + label: 'Opacity', + options: [OPACITY_OPAQUE, OPACITY_SEMI] + }, + // Options for this object are defined below. + windowColor: { + selector: '.vjs-window-color > select', + id: 'captions-window-color-%s', + label: 'Color' + }, + // Options for this object are defined below. + windowOpacity: { + selector: '.vjs-window-opacity > select', + id: 'captions-window-opacity-%s', + label: 'Opacity', + options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE] + } + }; + selectConfigs.windowColor.options = selectConfigs.backgroundColor.options; + + /** + * Get the actual value of an option. + * + * @param {string} value + * The value to get + * + * @param {Function} [parser] + * Optional function to adjust the value. + * + * @return {*} + * - Will be `undefined` if no value exists + * - Will be `undefined` if the given value is "none". + * - Will be the actual value otherwise. + * + * @private + */ + function parseOptionValue(value, parser) { + if (parser) { + value = parser(value); + } + if (value && value !== 'none') { + return value; + } + } + + /** + * Gets the value of the selected <option> element within a <select> element. + * + * @param {Element} el + * the element to look in + * + * @param {Function} [parser] + * Optional function to adjust the value. + * + * @return {*} + * - Will be `undefined` if no value exists + * - Will be `undefined` if the given value is "none". + * - Will be the actual value otherwise. + * + * @private + */ + function getSelectedOptionValue(el, parser) { + const value = el.options[el.options.selectedIndex].value; + return parseOptionValue(value, parser); + } + + /** + * Sets the selected <option> element within a <select> element based on a + * given value. + * + * @param {Element} el + * The element to look in. + * + * @param {string} value + * the property to look on. + * + * @param {Function} [parser] + * Optional function to adjust the value before comparing. + * + * @private + */ + function setSelectedOption(el, value, parser) { + if (!value) { + return; + } + for (let i = 0; i < el.options.length; i++) { + if (parseOptionValue(el.options[i].value, parser) === value) { + el.selectedIndex = i; + break; + } + } + } + + /** + * Manipulate Text Tracks settings. + * + * @extends ModalDialog + */ + class TextTrackSettings extends ModalDialog { + /** + * Creates an instance of this class. + * + * @param { import('../player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + */ + constructor(player, options) { + options.temporary = false; + super(player, options); + this.updateDisplay = this.updateDisplay.bind(this); + + // fill the modal and pretend we have opened it + this.fill(); + this.hasBeenOpened_ = this.hasBeenFilled_ = true; + this.endDialog = createEl('p', { + className: 'vjs-control-text', + textContent: this.localize('End of dialog window.') + }); + this.el().appendChild(this.endDialog); + this.setDefaults(); + + // Grab `persistTextTrackSettings` from the player options if not passed in child options + if (options.persistTextTrackSettings === undefined) { + this.options_.persistTextTrackSettings = this.options_.playerOptions.persistTextTrackSettings; + } + this.on(this.$('.vjs-done-button'), 'click', () => { + this.saveSettings(); + this.close(); + }); + this.on(this.$('.vjs-default-button'), 'click', () => { + this.setDefaults(); + this.updateDisplay(); + }); + each(selectConfigs, config => { + this.on(this.$(config.selector), 'change', this.updateDisplay); + }); + if (this.options_.persistTextTrackSettings) { + this.restoreSettings(); + } + } + dispose() { + this.endDialog = null; + super.dispose(); + } + + /** + * Create a <select> element with configured options. + * + * @param {string} key + * Configuration key to use during creation. + * + * @param {string} [legendId] + * Id of associated <legend>. + * + * @param {string} [type=label] + * Type of labelling element, `label` or `legend` + * + * @return {string} + * An HTML string. + * + * @private + */ + createElSelect_(key, legendId = '', type = 'label') { + const config = selectConfigs[key]; + const id = config.id.replace('%s', this.id_); + const selectLabelledbyIds = [legendId, id].join(' ').trim(); + const guid = `vjs_select_${newGUID()}`; + return [`<${type} id="${id}"${type === 'label' ? ` for="${guid}" class="vjs-label"` : ''}>`, this.localize(config.label), `</${type}>`, `<select aria-labelledby="${selectLabelledbyIds}" id="${guid}">`].concat(config.options.map(o => { + const optionId = id + '-' + o[1].replace(/\W+/g, ''); + return [`<option id="${optionId}" value="${o[0]}" `, `aria-labelledby="${selectLabelledbyIds} ${optionId}">`, this.localize(o[1]), '</option>'].join(''); + })).concat('</select>').join(''); + } + + /** + * Create foreground color element for the component + * + * @return {string} + * An HTML string. + * + * @private + */ + createElFgColor_() { + const legendId = `captions-text-legend-${this.id_}`; + return ['<fieldset class="vjs-fg vjs-track-setting">', `<legend id="${legendId}">`, this.localize('Text'), '</legend>', '<span class="vjs-text-color">', this.createElSelect_('color', legendId), '</span>', '<span class="vjs-text-opacity vjs-opacity">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join(''); + } + + /** + * Create background color element for the component + * + * @return {string} + * An HTML string. + * + * @private + */ + createElBgColor_() { + const legendId = `captions-background-${this.id_}`; + return ['<fieldset class="vjs-bg vjs-track-setting">', `<legend id="${legendId}">`, this.localize('Text Background'), '</legend>', '<span class="vjs-bg-color">', this.createElSelect_('backgroundColor', legendId), '</span>', '<span class="vjs-bg-opacity vjs-opacity">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join(''); + } + + /** + * Create window color element for the component + * + * @return {string} + * An HTML string. + * + * @private + */ + createElWinColor_() { + const legendId = `captions-window-${this.id_}`; + return ['<fieldset class="vjs-window vjs-track-setting">', `<legend id="${legendId}">`, this.localize('Caption Area Background'), '</legend>', '<span class="vjs-window-color">', this.createElSelect_('windowColor', legendId), '</span>', '<span class="vjs-window-opacity vjs-opacity">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join(''); + } + + /** + * Create color elements for the component + * + * @return {Element} + * The element that was created + * + * @private + */ + createElColors_() { + return createEl('div', { + className: 'vjs-track-settings-colors', + innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('') + }); + } + + /** + * Create font elements for the component + * + * @return {Element} + * The element that was created. + * + * @private + */ + createElFont_() { + return createEl('div', { + className: 'vjs-track-settings-font', + 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('') + }); + } + + /** + * Create controls for the component + * + * @return {Element} + * The element that was created. + * + * @private + */ + createElControls_() { + const defaultsDescription = this.localize('restore all settings to the default values'); + return createEl('div', { + className: 'vjs-track-settings-controls', + innerHTML: [`<button type="button" class="vjs-default-button" title="${defaultsDescription}">`, this.localize('Reset'), `<span class="vjs-control-text"> ${defaultsDescription}</span>`, '</button>', `<button type="button" class="vjs-done-button">${this.localize('Done')}</button>`].join('') + }); + } + content() { + return [this.createElColors_(), this.createElFont_(), this.createElControls_()]; + } + label() { + return this.localize('Caption Settings Dialog'); + } + description() { + return this.localize('Beginning of dialog window. Escape will cancel and close the window.'); + } + buildCSSClass() { + return super.buildCSSClass() + ' vjs-text-track-settings'; + } + + /** + * Gets an object of text track settings (or null). + * + * @return {Object} + * An object with config values parsed from the DOM or localStorage. + */ + getValues() { + return reduce(selectConfigs, (accum, config, key) => { + const value = getSelectedOptionValue(this.$(config.selector), config.parser); + if (value !== undefined) { + accum[key] = value; + } + return accum; + }, {}); + } + + /** + * Sets text track settings from an object of values. + * + * @param {Object} values + * An object with config values parsed from the DOM or localStorage. + */ + setValues(values) { + each(selectConfigs, (config, key) => { + setSelectedOption(this.$(config.selector), values[key], config.parser); + }); + } + + /** + * Sets all `<select>` elements to their default values. + */ + setDefaults() { + each(selectConfigs, config => { + const index = config.hasOwnProperty('default') ? config.default : 0; + this.$(config.selector).selectedIndex = index; + }); + } + + /** + * Restore texttrack settings from localStorage + */ + restoreSettings() { + let values; + try { + values = JSON.parse(window.localStorage.getItem(LOCAL_STORAGE_KEY)); + } catch (err) { + log.warn(err); + } + if (values) { + this.setValues(values); + } + } + + /** + * Save text track settings to localStorage + */ + saveSettings() { + if (!this.options_.persistTextTrackSettings) { + return; + } + const values = this.getValues(); + try { + if (Object.keys(values).length) { + window.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(values)); + } else { + window.localStorage.removeItem(LOCAL_STORAGE_KEY); + } + } catch (err) { + log.warn(err); + } + } + + /** + * Update display of text track settings + */ + updateDisplay() { + const ttDisplay = this.player_.getChild('textTrackDisplay'); + if (ttDisplay) { + ttDisplay.updateDisplay(); + } + } + + /** + * conditionally blur the element and refocus the captions button + * + * @private + */ + conditionalBlur_() { + this.previouslyActiveEl_ = null; + const cb = this.player_.controlBar; + const subsCapsBtn = cb && cb.subsCapsButton; + const ccBtn = cb && cb.captionsButton; + if (subsCapsBtn) { + subsCapsBtn.focus(); + } else if (ccBtn) { + ccBtn.focus(); + } + } + + /** + * Repopulate dialog with new localizations on languagechange + */ + handleLanguagechange() { + this.fill(); + } + } + Component.registerComponent('TextTrackSettings', TextTrackSettings); + + /** + * @file resize-manager.js + */ + + /** + * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions. + * + * 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}. + * + * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option. + * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below. + * + * @example <caption>How to disable the resize manager</caption> + * const player = videojs('#vid', { + * resizeManager: false + * }); + * + * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification} + * + * @extends Component + */ + class ResizeManager extends Component { + /** + * Create the ResizeManager. + * + * @param {Object} player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of ResizeManager options. + * + * @param {Object} [options.ResizeObserver] + * A polyfill for ResizeObserver can be passed in here. + * If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback. + */ + constructor(player, options) { + let RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window.ResizeObserver; + + // if `null` was passed, we want to disable the ResizeObserver + if (options.ResizeObserver === null) { + RESIZE_OBSERVER_AVAILABLE = false; + } + + // Only create an element when ResizeObserver isn't available + const options_ = merge({ + createEl: !RESIZE_OBSERVER_AVAILABLE, + reportTouchActivity: false + }, options); + super(player, options_); + this.ResizeObserver = options.ResizeObserver || window.ResizeObserver; + this.loadListener_ = null; + this.resizeObserver_ = null; + this.debouncedHandler_ = debounce(() => { + this.resizeHandler(); + }, 100, false, this); + if (RESIZE_OBSERVER_AVAILABLE) { + this.resizeObserver_ = new this.ResizeObserver(this.debouncedHandler_); + this.resizeObserver_.observe(player.el()); + } else { + this.loadListener_ = () => { + if (!this.el_ || !this.el_.contentWindow) { + return; + } + const debouncedHandler_ = this.debouncedHandler_; + let unloadListener_ = this.unloadListener_ = function () { + off(this, 'resize', debouncedHandler_); + off(this, 'unload', unloadListener_); + unloadListener_ = null; + }; + + // safari and edge can unload the iframe before resizemanager dispose + // we have to dispose of event handlers correctly before that happens + on(this.el_.contentWindow, 'unload', unloadListener_); + on(this.el_.contentWindow, 'resize', debouncedHandler_); + }; + this.one('load', this.loadListener_); + } + } + createEl() { + return super.createEl('iframe', { + className: 'vjs-resize-manager', + tabIndex: -1, + title: this.localize('No content') + }, { + 'aria-hidden': 'true' + }); + } + + /** + * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver + * + * @fires Player#playerresize + */ + resizeHandler() { + /** + * Called when the player size has changed + * + * @event Player#playerresize + * @type {Event} + */ + // make sure player is still around to trigger + // prevents this from causing an error after dispose + if (!this.player_ || !this.player_.trigger) { + return; + } + this.player_.trigger('playerresize'); + } + dispose() { + if (this.debouncedHandler_) { + this.debouncedHandler_.cancel(); + } + if (this.resizeObserver_) { + if (this.player_.el()) { + this.resizeObserver_.unobserve(this.player_.el()); + } + this.resizeObserver_.disconnect(); + } + if (this.loadListener_) { + this.off('load', this.loadListener_); + } + if (this.el_ && this.el_.contentWindow && this.unloadListener_) { + this.unloadListener_.call(this.el_.contentWindow); + } + this.ResizeObserver = null; + this.resizeObserver = null; + this.debouncedHandler_ = null; + this.loadListener_ = null; + super.dispose(); + } + } + Component.registerComponent('ResizeManager', ResizeManager); + + const defaults = { + trackingThreshold: 20, + liveTolerance: 15 + }; + + /* + track when we are at the live edge, and other helpers for live playback */ + + /** + * A class for checking live current time and determining when the player + * is at or behind the live edge. + */ + class LiveTracker extends Component { + /** + * Creates an instance of this class. + * + * @param { import('./player').default } player + * The `Player` that this class should be attached to. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @param {number} [options.trackingThreshold=20] + * Number of seconds of live window (seekableEnd - seekableStart) that + * media needs to have before the liveui will be shown. + * + * @param {number} [options.liveTolerance=15] + * Number of seconds behind live that we have to be + * before we will be considered non-live. Note that this will only + * be used when playing at the live edge. This allows large seekable end + * changes to not effect whether we are live or not. + */ + constructor(player, options) { + // LiveTracker does not need an element + const options_ = merge(defaults, options, { + createEl: false + }); + super(player, options_); + this.trackLiveHandler_ = () => this.trackLive_(); + this.handlePlay_ = e => this.handlePlay(e); + this.handleFirstTimeupdate_ = e => this.handleFirstTimeupdate(e); + this.handleSeeked_ = e => this.handleSeeked(e); + this.seekToLiveEdge_ = e => this.seekToLiveEdge(e); + this.reset_(); + this.on(this.player_, 'durationchange', e => this.handleDurationchange(e)); + // we should try to toggle tracking on canplay as native playback engines, like Safari + // may not have the proper values for things like seekableEnd until then + this.on(this.player_, 'canplay', () => this.toggleTracking()); + } + + /** + * all the functionality for tracking when seek end changes + * and for tracking how far past seek end we should be + */ + trackLive_() { + const seekable = this.player_.seekable(); + + // skip undefined seekable + if (!seekable || !seekable.length) { + return; + } + const newTime = Number(window.performance.now().toFixed(4)); + const deltaTime = this.lastTime_ === -1 ? 0 : (newTime - this.lastTime_) / 1000; + this.lastTime_ = newTime; + this.pastSeekEnd_ = this.pastSeekEnd() + deltaTime; + const liveCurrentTime = this.liveCurrentTime(); + const currentTime = this.player_.currentTime(); + + // we are behind live if any are true + // 1. the player is paused + // 2. the user seeked to a location 2 seconds away from live + // 3. the difference between live and current time is greater + // liveTolerance which defaults to 15s + let isBehind = this.player_.paused() || this.seekedBehindLive_ || Math.abs(liveCurrentTime - currentTime) > this.options_.liveTolerance; + + // we cannot be behind if + // 1. until we have not seen a timeupdate yet + // 2. liveCurrentTime is Infinity, which happens on Android and Native Safari + if (!this.timeupdateSeen_ || liveCurrentTime === Infinity) { + isBehind = false; + } + if (isBehind !== this.behindLiveEdge_) { + this.behindLiveEdge_ = isBehind; + this.trigger('liveedgechange'); + } + } + + /** + * handle a durationchange event on the player + * and start/stop tracking accordingly. + */ + handleDurationchange() { + this.toggleTracking(); + } + + /** + * start/stop tracking + */ + toggleTracking() { + if (this.player_.duration() === Infinity && this.liveWindow() >= this.options_.trackingThreshold) { + if (this.player_.options_.liveui) { + this.player_.addClass('vjs-liveui'); + } + this.startTracking(); + } else { + this.player_.removeClass('vjs-liveui'); + this.stopTracking(); + } + } + + /** + * start tracking live playback + */ + startTracking() { + if (this.isTracking()) { + return; + } + + // If we haven't seen a timeupdate, we need to check whether playback + // began before this component started tracking. This can happen commonly + // when using autoplay. + if (!this.timeupdateSeen_) { + this.timeupdateSeen_ = this.player_.hasStarted(); + } + this.trackingInterval_ = this.setInterval(this.trackLiveHandler_, UPDATE_REFRESH_INTERVAL); + this.trackLive_(); + this.on(this.player_, ['play', 'pause'], this.trackLiveHandler_); + if (!this.timeupdateSeen_) { + this.one(this.player_, 'play', this.handlePlay_); + this.one(this.player_, 'timeupdate', this.handleFirstTimeupdate_); + } else { + this.on(this.player_, 'seeked', this.handleSeeked_); + } + } + + /** + * handle the first timeupdate on the player if it wasn't already playing + * when live tracker started tracking. + */ + handleFirstTimeupdate() { + this.timeupdateSeen_ = true; + this.on(this.player_, 'seeked', this.handleSeeked_); + } + + /** + * Keep track of what time a seek starts, and listen for seeked + * to find where a seek ends. + */ + handleSeeked() { + const timeDiff = Math.abs(this.liveCurrentTime() - this.player_.currentTime()); + this.seekedBehindLive_ = this.nextSeekedFromUser_ && timeDiff > 2; + this.nextSeekedFromUser_ = false; + this.trackLive_(); + } + + /** + * handle the first play on the player, and make sure that we seek + * right to the live edge. + */ + handlePlay() { + this.one(this.player_, 'timeupdate', this.seekToLiveEdge_); + } + + /** + * Stop tracking, and set all internal variables to + * their initial value. + */ + reset_() { + this.lastTime_ = -1; + this.pastSeekEnd_ = 0; + this.lastSeekEnd_ = -1; + this.behindLiveEdge_ = true; + this.timeupdateSeen_ = false; + this.seekedBehindLive_ = false; + this.nextSeekedFromUser_ = false; + this.clearInterval(this.trackingInterval_); + this.trackingInterval_ = null; + this.off(this.player_, ['play', 'pause'], this.trackLiveHandler_); + this.off(this.player_, 'seeked', this.handleSeeked_); + this.off(this.player_, 'play', this.handlePlay_); + this.off(this.player_, 'timeupdate', this.handleFirstTimeupdate_); + this.off(this.player_, 'timeupdate', this.seekToLiveEdge_); + } + + /** + * The next seeked event is from the user. Meaning that any seek + * > 2s behind live will be considered behind live for real and + * liveTolerance will be ignored. + */ + nextSeekedFromUser() { + this.nextSeekedFromUser_ = true; + } + + /** + * stop tracking live playback + */ + stopTracking() { + if (!this.isTracking()) { + return; + } + this.reset_(); + this.trigger('liveedgechange'); + } + + /** + * A helper to get the player seekable end + * so that we don't have to null check everywhere + * + * @return {number} + * The furthest seekable end or Infinity. + */ + seekableEnd() { + const seekable = this.player_.seekable(); + const seekableEnds = []; + let i = seekable ? seekable.length : 0; + while (i--) { + seekableEnds.push(seekable.end(i)); + } + + // grab the furthest seekable end after sorting, or if there are none + // default to Infinity + return seekableEnds.length ? seekableEnds.sort()[seekableEnds.length - 1] : Infinity; + } + + /** + * A helper to get the player seekable start + * so that we don't have to null check everywhere + * + * @return {number} + * The earliest seekable start or 0. + */ + seekableStart() { + const seekable = this.player_.seekable(); + const seekableStarts = []; + let i = seekable ? seekable.length : 0; + while (i--) { + seekableStarts.push(seekable.start(i)); + } + + // grab the first seekable start after sorting, or if there are none + // default to 0 + return seekableStarts.length ? seekableStarts.sort()[0] : 0; + } + + /** + * Get the live time window aka + * the amount of time between seekable start and + * live current time. + * + * @return {number} + * The amount of seconds that are seekable in + * the live video. + */ + liveWindow() { + const liveCurrentTime = this.liveCurrentTime(); + + // if liveCurrenTime is Infinity then we don't have a liveWindow at all + if (liveCurrentTime === Infinity) { + return 0; + } + return liveCurrentTime - this.seekableStart(); + } + + /** + * Determines if the player is live, only checks if this component + * is tracking live playback or not + * + * @return {boolean} + * Whether liveTracker is tracking + */ + isLive() { + return this.isTracking(); + } + + /** + * Determines if currentTime is at the live edge and won't fall behind + * on each seekableendchange + * + * @return {boolean} + * Whether playback is at the live edge + */ + atLiveEdge() { + return !this.behindLiveEdge(); + } + + /** + * get what we expect the live current time to be + * + * @return {number} + * The expected live current time + */ + liveCurrentTime() { + return this.pastSeekEnd() + this.seekableEnd(); + } + + /** + * The number of seconds that have occurred after seekable end + * changed. This will be reset to 0 once seekable end changes. + * + * @return {number} + * Seconds past the current seekable end + */ + pastSeekEnd() { + const seekableEnd = this.seekableEnd(); + if (this.lastSeekEnd_ !== -1 && seekableEnd !== this.lastSeekEnd_) { + this.pastSeekEnd_ = 0; + } + this.lastSeekEnd_ = seekableEnd; + return this.pastSeekEnd_; + } + + /** + * If we are currently behind the live edge, aka currentTime will be + * behind on a seekableendchange + * + * @return {boolean} + * If we are behind the live edge + */ + behindLiveEdge() { + return this.behindLiveEdge_; + } + + /** + * Whether live tracker is currently tracking or not. + */ + isTracking() { + return typeof this.trackingInterval_ === 'number'; + } + + /** + * Seek to the live edge if we are behind the live edge + */ + seekToLiveEdge() { + this.seekedBehindLive_ = false; + if (this.atLiveEdge()) { + return; + } + this.nextSeekedFromUser_ = false; + this.player_.currentTime(this.liveCurrentTime()); + } + + /** + * Dispose of liveTracker + */ + dispose() { + this.stopTracking(); + super.dispose(); + } + } + Component.registerComponent('LiveTracker', LiveTracker); + + /** + * Displays an element over the player which contains an optional title and + * description for the current content. + * + * Much of the code for this component originated in the now obsolete + * videojs-dock plugin: https://github.com/brightcove/videojs-dock/ + * + * @extends Component + */ + class TitleBar extends Component { + constructor(player, options) { + super(player, options); + this.on('statechanged', e => this.updateDom_()); + this.updateDom_(); + } + + /** + * Create the `TitleBar`'s DOM element + * + * @return {Element} + * The element that was created. + */ + createEl() { + this.els = { + title: createEl('div', { + className: 'vjs-title-bar-title', + id: `vjs-title-bar-title-${newGUID()}` + }), + description: createEl('div', { + className: 'vjs-title-bar-description', + id: `vjs-title-bar-description-${newGUID()}` + }) + }; + return createEl('div', { + className: 'vjs-title-bar' + }, {}, values(this.els)); + } + + /** + * Updates the DOM based on the component's state object. + */ + updateDom_() { + const tech = this.player_.tech_; + const techEl = tech && tech.el_; + const techAriaAttrs = { + title: 'aria-labelledby', + description: 'aria-describedby' + }; + ['title', 'description'].forEach(k => { + const value = this.state[k]; + const el = this.els[k]; + const techAriaAttr = techAriaAttrs[k]; + emptyEl(el); + if (value) { + textContent(el, value); + } + + // If there is a tech element available, update its ARIA attributes + // according to whether a title and/or description have been provided. + if (techEl) { + techEl.removeAttribute(techAriaAttr); + if (value) { + techEl.setAttribute(techAriaAttr, el.id); + } + } + }); + if (this.state.title || this.state.description) { + this.show(); + } else { + this.hide(); + } + } + + /** + * Update the contents of the title bar component with new title and + * description text. + * + * If both title and description are missing, the title bar will be hidden. + * + * If either title or description are present, the title bar will be visible. + * + * NOTE: Any previously set value will be preserved. To unset a previously + * set value, you must pass an empty string or null. + * + * For example: + * + * ``` + * update({title: 'foo', description: 'bar'}) // title: 'foo', description: 'bar' + * update({description: 'bar2'}) // title: 'foo', description: 'bar2' + * update({title: ''}) // title: '', description: 'bar2' + * update({title: 'foo', description: null}) // title: 'foo', description: null + * ``` + * + * @param {Object} [options={}] + * An options object. When empty, the title bar will be hidden. + * + * @param {string} [options.title] + * A title to display in the title bar. + * + * @param {string} [options.description] + * A description to display in the title bar. + */ + update(options) { + this.setState(options); + } + + /** + * Dispose the component. + */ + dispose() { + const tech = this.player_.tech_; + const techEl = tech && tech.el_; + if (techEl) { + techEl.removeAttribute('aria-labelledby'); + techEl.removeAttribute('aria-describedby'); + } + super.dispose(); + this.els = null; + } + } + Component.registerComponent('TitleBar', TitleBar); + + /** + * This function is used to fire a sourceset when there is something + * similar to `mediaEl.load()` being called. It will try to find the source via + * the `src` attribute and then the `<source>` elements. It will then fire `sourceset` + * with the source that was found or empty string if we cannot know. If it cannot + * find a source then `sourceset` will not be fired. + * + * @param { import('./html5').default } tech + * The tech object that sourceset was setup on + * + * @return {boolean} + * returns false if the sourceset was not fired and true otherwise. + */ + const sourcesetLoad = tech => { + const el = tech.el(); + + // if `el.src` is set, that source will be loaded. + if (el.hasAttribute('src')) { + tech.triggerSourceset(el.src); + return true; + } + + /** + * Since there isn't a src property on the media element, source elements will be used for + * implementing the source selection algorithm. This happens asynchronously and + * for most cases were there is more than one source we cannot tell what source will + * be loaded, without re-implementing the source selection algorithm. At this time we are not + * going to do that. There are three special cases that we do handle here though: + * + * 1. If there are no sources, do not fire `sourceset`. + * 2. If there is only one `<source>` with a `src` property/attribute that is our `src` + * 3. If there is more than one `<source>` but all of them have the same `src` url. + * That will be our src. + */ + const sources = tech.$$('source'); + const srcUrls = []; + let src = ''; + + // if there are no sources, do not fire sourceset + if (!sources.length) { + return false; + } + + // only count valid/non-duplicate source elements + for (let i = 0; i < sources.length; i++) { + const url = sources[i].src; + if (url && srcUrls.indexOf(url) === -1) { + srcUrls.push(url); + } + } + + // there were no valid sources + if (!srcUrls.length) { + return false; + } + + // there is only one valid source element url + // use that + if (srcUrls.length === 1) { + src = srcUrls[0]; + } + tech.triggerSourceset(src); + return true; + }; + + /** + * our implementation of an `innerHTML` descriptor for browsers + * that do not have one. + */ + const innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', { + get() { + return this.cloneNode(true).innerHTML; + }, + set(v) { + // make a dummy node to use innerHTML on + const dummy = document.createElement(this.nodeName.toLowerCase()); + + // set innerHTML to the value provided + dummy.innerHTML = v; + + // make a document fragment to hold the nodes from dummy + const docFrag = document.createDocumentFragment(); + + // copy all of the nodes created by the innerHTML on dummy + // to the document fragment + while (dummy.childNodes.length) { + docFrag.appendChild(dummy.childNodes[0]); + } + + // remove content + this.innerText = ''; + + // now we add all of that html in one by appending the + // document fragment. This is how innerHTML does it. + window.Element.prototype.appendChild.call(this, docFrag); + + // then return the result that innerHTML's setter would + return this.innerHTML; + } + }); + + /** + * Get a property descriptor given a list of priorities and the + * property to get. + */ + const getDescriptor = (priority, prop) => { + let descriptor = {}; + for (let i = 0; i < priority.length; i++) { + descriptor = Object.getOwnPropertyDescriptor(priority[i], prop); + if (descriptor && descriptor.set && descriptor.get) { + break; + } + } + descriptor.enumerable = true; + descriptor.configurable = true; + return descriptor; + }; + const getInnerHTMLDescriptor = tech => getDescriptor([tech.el(), window.HTMLMediaElement.prototype, window.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML'); + + /** + * Patches browser internal functions so that we can tell synchronously + * if a `<source>` was appended to the media element. For some reason this + * causes a `sourceset` if the the media element is ready and has no source. + * This happens when: + * - The page has just loaded and the media element does not have a source. + * - The media element was emptied of all sources, then `load()` was called. + * + * It does this by patching the following functions/properties when they are supported: + * + * - `append()` - can be used to add a `<source>` element to the media element + * - `appendChild()` - can be used to add a `<source>` element to the media element + * - `insertAdjacentHTML()` - can be used to add a `<source>` element to the media element + * - `innerHTML` - can be used to add a `<source>` element to the media element + * + * @param {Html5} tech + * The tech object that sourceset is being setup on. + */ + const firstSourceWatch = function (tech) { + const el = tech.el(); + + // make sure firstSourceWatch isn't setup twice. + if (el.resetSourceWatch_) { + return; + } + const old = {}; + const innerDescriptor = getInnerHTMLDescriptor(tech); + const appendWrapper = appendFn => (...args) => { + const retval = appendFn.apply(el, args); + sourcesetLoad(tech); + return retval; + }; + ['append', 'appendChild', 'insertAdjacentHTML'].forEach(k => { + if (!el[k]) { + return; + } + + // store the old function + old[k] = el[k]; + + // call the old function with a sourceset if a source + // was loaded + el[k] = appendWrapper(old[k]); + }); + Object.defineProperty(el, 'innerHTML', merge(innerDescriptor, { + set: appendWrapper(innerDescriptor.set) + })); + el.resetSourceWatch_ = () => { + el.resetSourceWatch_ = null; + Object.keys(old).forEach(k => { + el[k] = old[k]; + }); + Object.defineProperty(el, 'innerHTML', innerDescriptor); + }; + + // on the first sourceset, we need to revert our changes + tech.one('sourceset', el.resetSourceWatch_); + }; + + /** + * our implementation of a `src` descriptor for browsers + * that do not have one + */ + const srcDescriptorPolyfill = Object.defineProperty({}, 'src', { + get() { + if (this.hasAttribute('src')) { + return getAbsoluteURL(window.Element.prototype.getAttribute.call(this, 'src')); + } + return ''; + }, + set(v) { + window.Element.prototype.setAttribute.call(this, 'src', v); + return v; + } + }); + const getSrcDescriptor = tech => getDescriptor([tech.el(), window.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src'); + + /** + * setup `sourceset` handling on the `Html5` tech. This function + * patches the following element properties/functions: + * + * - `src` - to determine when `src` is set + * - `setAttribute()` - to determine when `src` is set + * - `load()` - this re-triggers the source selection algorithm, and can + * cause a sourceset. + * + * If there is no source when we are adding `sourceset` support or during a `load()` + * we also patch the functions listed in `firstSourceWatch`. + * + * @param {Html5} tech + * The tech to patch + */ + const setupSourceset = function (tech) { + if (!tech.featuresSourceset) { + return; + } + const el = tech.el(); + + // make sure sourceset isn't setup twice. + if (el.resetSourceset_) { + return; + } + const srcDescriptor = getSrcDescriptor(tech); + const oldSetAttribute = el.setAttribute; + const oldLoad = el.load; + Object.defineProperty(el, 'src', merge(srcDescriptor, { + set: v => { + const retval = srcDescriptor.set.call(el, v); + + // we use the getter here to get the actual value set on src + tech.triggerSourceset(el.src); + return retval; + } + })); + el.setAttribute = (n, v) => { + const retval = oldSetAttribute.call(el, n, v); + if (/src/i.test(n)) { + tech.triggerSourceset(el.src); + } + return retval; + }; + el.load = () => { + const retval = oldLoad.call(el); + + // if load was called, but there was no source to fire + // sourceset on. We have to watch for a source append + // as that can trigger a `sourceset` when the media element + // has no source + if (!sourcesetLoad(tech)) { + tech.triggerSourceset(''); + firstSourceWatch(tech); + } + return retval; + }; + if (el.currentSrc) { + tech.triggerSourceset(el.currentSrc); + } else if (!sourcesetLoad(tech)) { + firstSourceWatch(tech); + } + el.resetSourceset_ = () => { + el.resetSourceset_ = null; + el.load = oldLoad; + el.setAttribute = oldSetAttribute; + Object.defineProperty(el, 'src', srcDescriptor); + if (el.resetSourceWatch_) { + el.resetSourceWatch_(); + } + }; + }; + + /** + * @file html5.js + */ + + /** + * HTML5 Media Controller - Wrapper for HTML5 Media API + * + * @mixes Tech~SourceHandlerAdditions + * @extends Tech + */ + class Html5 extends Tech { + /** + * Create an instance of this Tech. + * + * @param {Object} [options] + * The key/value store of player options. + * + * @param {Function} [ready] + * Callback function to call when the `HTML5` Tech is ready. + */ + constructor(options, ready) { + super(options, ready); + const source = options.source; + let crossoriginTracks = false; + this.featuresVideoFrameCallback = this.featuresVideoFrameCallback && this.el_.tagName === 'VIDEO'; + + // Set the source if one is provided + // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted) + // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source + // anyway so the error gets fired. + if (source && (this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) { + this.setSource(source); + } else { + this.handleLateInit_(this.el_); + } + + // setup sourceset after late sourceset/init + if (options.enableSourceset) { + this.setupSourcesetHandling_(); + } + this.isScrubbing_ = false; + if (this.el_.hasChildNodes()) { + const nodes = this.el_.childNodes; + let nodesLength = nodes.length; + const removeNodes = []; + while (nodesLength--) { + const node = nodes[nodesLength]; + const nodeName = node.nodeName.toLowerCase(); + if (nodeName === 'track') { + if (!this.featuresNativeTextTracks) { + // Empty video tag tracks so the built-in player doesn't use them also. + // This may not be fast enough to stop HTML5 browsers from reading the tags + // so we'll need to turn off any default tracks if we're manually doing + // captions and subtitles. videoElement.textTracks + removeNodes.push(node); + } else { + // store HTMLTrackElement and TextTrack to remote list + this.remoteTextTrackEls().addTrackElement_(node); + this.remoteTextTracks().addTrack(node.track); + this.textTracks().addTrack(node.track); + if (!crossoriginTracks && !this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) { + crossoriginTracks = true; + } + } + } + } + for (let i = 0; i < removeNodes.length; i++) { + this.el_.removeChild(removeNodes[i]); + } + } + this.proxyNativeTracks_(); + if (this.featuresNativeTextTracks && crossoriginTracks) { + log.warn('Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n' + 'This may prevent text tracks from loading.'); + } + + // prevent iOS Safari from disabling metadata text tracks during native playback + this.restoreMetadataTracksInIOSNativePlayer_(); + + // Determine if native controls should be used + // Our goal should be to get the custom controls on mobile solid everywhere + // so we can remove this all together. Right now this will block custom + // controls on touch enabled laptops like the Chrome Pixel + if ((TOUCH_ENABLED || IS_IPHONE) && options.nativeControlsForTouch === true) { + this.setControls(true); + } + + // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen` + // into a `fullscreenchange` event + this.proxyWebkitFullscreen_(); + this.triggerReady(); + } + + /** + * Dispose of `HTML5` media element and remove all tracks. + */ + dispose() { + if (this.el_ && this.el_.resetSourceset_) { + this.el_.resetSourceset_(); + } + Html5.disposeMediaElement(this.el_); + this.options_ = null; + + // tech will handle clearing of the emulated track list + super.dispose(); + } + + /** + * Modify the media element so that we can detect when + * the source is changed. Fires `sourceset` just after the source has changed + */ + setupSourcesetHandling_() { + setupSourceset(this); + } + + /** + * When a captions track is enabled in the iOS Safari native player, all other + * tracks are disabled (including metadata tracks), which nulls all of their + * associated cue points. This will restore metadata tracks to their pre-fullscreen + * state in those cases so that cue points are not needlessly lost. + * + * @private + */ + restoreMetadataTracksInIOSNativePlayer_() { + const textTracks = this.textTracks(); + let metadataTracksPreFullscreenState; + + // captures a snapshot of every metadata track's current state + const takeMetadataTrackSnapshot = () => { + metadataTracksPreFullscreenState = []; + for (let i = 0; i < textTracks.length; i++) { + const track = textTracks[i]; + if (track.kind === 'metadata') { + metadataTracksPreFullscreenState.push({ + track, + storedMode: track.mode + }); + } + } + }; + + // snapshot each metadata track's initial state, and update the snapshot + // each time there is a track 'change' event + takeMetadataTrackSnapshot(); + textTracks.addEventListener('change', takeMetadataTrackSnapshot); + this.on('dispose', () => textTracks.removeEventListener('change', takeMetadataTrackSnapshot)); + const restoreTrackMode = () => { + for (let i = 0; i < metadataTracksPreFullscreenState.length; i++) { + const storedTrack = metadataTracksPreFullscreenState[i]; + if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) { + storedTrack.track.mode = storedTrack.storedMode; + } + } + // we only want this handler to be executed on the first 'change' event + textTracks.removeEventListener('change', restoreTrackMode); + }; + + // when we enter fullscreen playback, stop updating the snapshot and + // restore all track modes to their pre-fullscreen state + this.on('webkitbeginfullscreen', () => { + textTracks.removeEventListener('change', takeMetadataTrackSnapshot); + + // remove the listener before adding it just in case it wasn't previously removed + textTracks.removeEventListener('change', restoreTrackMode); + textTracks.addEventListener('change', restoreTrackMode); + }); + + // start updating the snapshot again after leaving fullscreen + this.on('webkitendfullscreen', () => { + // remove the listener before adding it just in case it wasn't previously removed + textTracks.removeEventListener('change', takeMetadataTrackSnapshot); + textTracks.addEventListener('change', takeMetadataTrackSnapshot); + + // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback + textTracks.removeEventListener('change', restoreTrackMode); + }); + } + + /** + * Attempt to force override of tracks for the given type + * + * @param {string} type - Track type to override, possible values include 'Audio', + * 'Video', and 'Text'. + * @param {boolean} override - If set to true native audio/video will be overridden, + * otherwise native audio/video will potentially be used. + * @private + */ + overrideNative_(type, override) { + // If there is no behavioral change don't add/remove listeners + if (override !== this[`featuresNative${type}Tracks`]) { + return; + } + const lowerCaseType = type.toLowerCase(); + if (this[`${lowerCaseType}TracksListeners_`]) { + Object.keys(this[`${lowerCaseType}TracksListeners_`]).forEach(eventName => { + const elTracks = this.el()[`${lowerCaseType}Tracks`]; + elTracks.removeEventListener(eventName, this[`${lowerCaseType}TracksListeners_`][eventName]); + }); + } + this[`featuresNative${type}Tracks`] = !override; + this[`${lowerCaseType}TracksListeners_`] = null; + this.proxyNativeTracksForType_(lowerCaseType); + } + + /** + * Attempt to force override of native audio tracks. + * + * @param {boolean} override - If set to true native audio will be overridden, + * otherwise native audio will potentially be used. + */ + overrideNativeAudioTracks(override) { + this.overrideNative_('Audio', override); + } + + /** + * Attempt to force override of native video tracks. + * + * @param {boolean} override - If set to true native video will be overridden, + * otherwise native video will potentially be used. + */ + overrideNativeVideoTracks(override) { + this.overrideNative_('Video', override); + } + + /** + * Proxy native track list events for the given type to our track + * lists if the browser we are playing in supports that type of track list. + * + * @param {string} name - Track type; values include 'audio', 'video', and 'text' + * @private + */ + proxyNativeTracksForType_(name) { + const props = NORMAL[name]; + const elTracks = this.el()[props.getterName]; + const techTracks = this[props.getterName](); + if (!this[`featuresNative${props.capitalName}Tracks`] || !elTracks || !elTracks.addEventListener) { + return; + } + const listeners = { + change: e => { + const event = { + type: 'change', + target: techTracks, + currentTarget: techTracks, + srcElement: techTracks + }; + techTracks.trigger(event); + + // if we are a text track change event, we should also notify the + // remote text track list. This can potentially cause a false positive + // if we were to get a change event on a non-remote track and + // we triggered the event on the remote text track list which doesn't + // contain that track. However, best practices mean looping through the + // list of tracks and searching for the appropriate mode value, so, + // this shouldn't pose an issue + if (name === 'text') { + this[REMOTE.remoteText.getterName]().trigger(event); + } + }, + addtrack(e) { + techTracks.addTrack(e.track); + }, + removetrack(e) { + techTracks.removeTrack(e.track); + } + }; + const removeOldTracks = function () { + const removeTracks = []; + for (let i = 0; i < techTracks.length; i++) { + let found = false; + for (let j = 0; j < elTracks.length; j++) { + if (elTracks[j] === techTracks[i]) { + found = true; + break; + } + } + if (!found) { + removeTracks.push(techTracks[i]); + } + } + while (removeTracks.length) { + techTracks.removeTrack(removeTracks.shift()); + } + }; + this[props.getterName + 'Listeners_'] = listeners; + Object.keys(listeners).forEach(eventName => { + const listener = listeners[eventName]; + elTracks.addEventListener(eventName, listener); + this.on('dispose', e => elTracks.removeEventListener(eventName, listener)); + }); + + // Remove (native) tracks that are not used anymore + this.on('loadstart', removeOldTracks); + this.on('dispose', e => this.off('loadstart', removeOldTracks)); + } + + /** + * Proxy all native track list events to our track lists if the browser we are playing + * in supports that type of track list. + * + * @private + */ + proxyNativeTracks_() { + NORMAL.names.forEach(name => { + this.proxyNativeTracksForType_(name); + }); + } + + /** + * Create the `Html5` Tech's DOM element. + * + * @return {Element} + * The element that gets created. + */ + createEl() { + let el = this.options_.tag; + + // Check if this browser supports moving the element into the box. + // On the iPhone video will break if you move the element, + // So we have to create a brand new element. + // If we ingested the player div, we do not need to move the media element. + if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) { + // If the original tag is still there, clone and remove it. + if (el) { + const clone = el.cloneNode(true); + if (el.parentNode) { + el.parentNode.insertBefore(clone, el); + } + Html5.disposeMediaElement(el); + el = clone; + } else { + el = document.createElement('video'); + + // determine if native controls should be used + const tagAttributes = this.options_.tag && getAttributes(this.options_.tag); + const attributes = merge({}, tagAttributes); + if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) { + delete attributes.controls; + } + setAttributes(el, Object.assign(attributes, { + id: this.options_.techId, + class: 'vjs-tech' + })); + } + el.playerId = this.options_.playerId; + } + if (typeof this.options_.preload !== 'undefined') { + setAttribute(el, 'preload', this.options_.preload); + } + if (this.options_.disablePictureInPicture !== undefined) { + el.disablePictureInPicture = this.options_.disablePictureInPicture; + } + + // Update specific tag settings, in case they were overridden + // `autoplay` has to be *last* so that `muted` and `playsinline` are present + // when iOS/Safari or other browsers attempt to autoplay. + const settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay']; + for (let i = 0; i < settingsAttrs.length; i++) { + const attr = settingsAttrs[i]; + const value = this.options_[attr]; + if (typeof value !== 'undefined') { + if (value) { + setAttribute(el, attr, attr); + } else { + removeAttribute(el, attr); + } + el[attr] = value; + } + } + return el; + } + + /** + * This will be triggered if the loadstart event has already fired, before videojs was + * ready. Two known examples of when this can happen are: + * 1. If we're loading the playback object after it has started loading + * 2. The media is already playing the (often with autoplay on) then + * + * This function will fire another loadstart so that videojs can catchup. + * + * @fires Tech#loadstart + * + * @return {undefined} + * returns nothing. + */ + handleLateInit_(el) { + if (el.networkState === 0 || el.networkState === 3) { + // The video element hasn't started loading the source yet + // or didn't find a source + return; + } + if (el.readyState === 0) { + // NetworkState is set synchronously BUT loadstart is fired at the + // end of the current stack, usually before setInterval(fn, 0). + // So at this point we know loadstart may have already fired or is + // about to fire, and either way the player hasn't seen it yet. + // We don't want to fire loadstart prematurely here and cause a + // double loadstart so we'll wait and see if it happens between now + // and the next loop, and fire it if not. + // HOWEVER, we also want to make sure it fires before loadedmetadata + // which could also happen between now and the next loop, so we'll + // watch for that also. + let loadstartFired = false; + const setLoadstartFired = function () { + loadstartFired = true; + }; + this.on('loadstart', setLoadstartFired); + const triggerLoadstart = function () { + // We did miss the original loadstart. Make sure the player + // sees loadstart before loadedmetadata + if (!loadstartFired) { + this.trigger('loadstart'); + } + }; + this.on('loadedmetadata', triggerLoadstart); + this.ready(function () { + this.off('loadstart', setLoadstartFired); + this.off('loadedmetadata', triggerLoadstart); + if (!loadstartFired) { + // We did miss the original native loadstart. Fire it now. + this.trigger('loadstart'); + } + }); + return; + } + + // From here on we know that loadstart already fired and we missed it. + // The other readyState events aren't as much of a problem if we double + // them, so not going to go to as much trouble as loadstart to prevent + // that unless we find reason to. + const eventsToTrigger = ['loadstart']; + + // loadedmetadata: newly equal to HAVE_METADATA (1) or greater + eventsToTrigger.push('loadedmetadata'); + + // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater + if (el.readyState >= 2) { + eventsToTrigger.push('loadeddata'); + } + + // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater + if (el.readyState >= 3) { + eventsToTrigger.push('canplay'); + } + + // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4) + if (el.readyState >= 4) { + eventsToTrigger.push('canplaythrough'); + } + + // We still need to give the player time to add event listeners + this.ready(function () { + eventsToTrigger.forEach(function (type) { + this.trigger(type); + }, this); + }); + } + + /** + * Set whether we are scrubbing or not. + * This is used to decide whether we should use `fastSeek` or not. + * `fastSeek` is used to provide trick play on Safari browsers. + * + * @param {boolean} isScrubbing + * - true for we are currently scrubbing + * - false for we are no longer scrubbing + */ + setScrubbing(isScrubbing) { + this.isScrubbing_ = isScrubbing; + } + + /** + * Get whether we are scrubbing or not. + * + * @return {boolean} isScrubbing + * - true for we are currently scrubbing + * - false for we are no longer scrubbing + */ + scrubbing() { + return this.isScrubbing_; + } + + /** + * Set current time for the `HTML5` tech. + * + * @param {number} seconds + * Set the current time of the media to this. + */ + setCurrentTime(seconds) { + try { + if (this.isScrubbing_ && this.el_.fastSeek && IS_ANY_SAFARI) { + this.el_.fastSeek(seconds); + } else { + this.el_.currentTime = seconds; + } + } catch (e) { + log(e, 'Video is not ready. (Video.js)'); + // this.warning(VideoJS.warnings.videoNotReady); + } + } + + /** + * Get the current duration of the HTML5 media element. + * + * @return {number} + * The duration of the media or 0 if there is no duration. + */ + duration() { + // Android Chrome will report duration as Infinity for VOD HLS until after + // playback has started, which triggers the live display erroneously. + // Return NaN if playback has not started and trigger a durationupdate once + // the duration can be reliably known. + if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) { + // Wait for the first `timeupdate` with currentTime > 0 - there may be + // several with 0 + const checkProgress = () => { + if (this.el_.currentTime > 0) { + // Trigger durationchange for genuinely live video + if (this.el_.duration === Infinity) { + this.trigger('durationchange'); + } + this.off('timeupdate', checkProgress); + } + }; + this.on('timeupdate', checkProgress); + return NaN; + } + return this.el_.duration || NaN; + } + + /** + * Get the current width of the HTML5 media element. + * + * @return {number} + * The width of the HTML5 media element. + */ + width() { + return this.el_.offsetWidth; + } + + /** + * Get the current height of the HTML5 media element. + * + * @return {number} + * The height of the HTML5 media element. + */ + height() { + return this.el_.offsetHeight; + } + + /** + * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into + * `fullscreenchange` event. + * + * @private + * @fires fullscreenchange + * @listens webkitendfullscreen + * @listens webkitbeginfullscreen + * @listens webkitbeginfullscreen + */ + proxyWebkitFullscreen_() { + if (!('webkitDisplayingFullscreen' in this.el_)) { + return; + } + const endFn = function () { + this.trigger('fullscreenchange', { + isFullscreen: false + }); + // Safari will sometimes set controls on the videoelement when existing fullscreen. + if (this.el_.controls && !this.options_.nativeControlsForTouch && this.controls()) { + this.el_.controls = false; + } + }; + const beginFn = function () { + if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') { + this.one('webkitendfullscreen', endFn); + this.trigger('fullscreenchange', { + isFullscreen: true, + // set a flag in case another tech triggers fullscreenchange + nativeIOSFullscreen: true + }); + } + }; + this.on('webkitbeginfullscreen', beginFn); + this.on('dispose', () => { + this.off('webkitbeginfullscreen', beginFn); + this.off('webkitendfullscreen', endFn); + }); + } + + /** + * Check if fullscreen is supported on the video el. + * + * @return {boolean} + * - True if fullscreen is supported. + * - False if fullscreen is not supported. + */ + supportsFullScreen() { + return typeof this.el_.webkitEnterFullScreen === 'function'; + } + + /** + * Request that the `HTML5` Tech enter fullscreen. + */ + enterFullScreen() { + const video = this.el_; + if (video.paused && video.networkState <= video.HAVE_METADATA) { + // attempt to prime the video element for programmatic access + // this isn't necessary on the desktop but shouldn't hurt + silencePromise(this.el_.play()); + + // playing and pausing synchronously during the transition to fullscreen + // can get iOS ~6.1 devices into a play/pause loop + this.setTimeout(function () { + video.pause(); + try { + video.webkitEnterFullScreen(); + } catch (e) { + this.trigger('fullscreenerror', e); + } + }, 0); + } else { + try { + video.webkitEnterFullScreen(); + } catch (e) { + this.trigger('fullscreenerror', e); + } + } + } + + /** + * Request that the `HTML5` Tech exit fullscreen. + */ + exitFullScreen() { + if (!this.el_.webkitDisplayingFullscreen) { + this.trigger('fullscreenerror', new Error('The video is not fullscreen')); + return; + } + this.el_.webkitExitFullScreen(); + } + + /** + * Create a floating video window always on top of other windows so that users may + * continue consuming media while they interact with other content sites, or + * applications on their device. + * + * @see [Spec]{@link https://wicg.github.io/picture-in-picture} + * + * @return {Promise} + * A promise with a Picture-in-Picture window. + */ + requestPictureInPicture() { + return this.el_.requestPictureInPicture(); + } + + /** + * Native requestVideoFrameCallback if supported by browser/tech, or fallback + * Don't use rVCF on Safari when DRM is playing, as it doesn't fire + * Needs to be checked later than the constructor + * This will be a false positive for clear sources loaded after a Fairplay source + * + * @param {function} cb function to call + * @return {number} id of request + */ + requestVideoFrameCallback(cb) { + if (this.featuresVideoFrameCallback && !this.el_.webkitKeys) { + return this.el_.requestVideoFrameCallback(cb); + } + return super.requestVideoFrameCallback(cb); + } + + /** + * Native or fallback requestVideoFrameCallback + * + * @param {number} id request id to cancel + */ + cancelVideoFrameCallback(id) { + if (this.featuresVideoFrameCallback && !this.el_.webkitKeys) { + this.el_.cancelVideoFrameCallback(id); + } else { + super.cancelVideoFrameCallback(id); + } + } + + /** + * A getter/setter for the `Html5` Tech's source object. + * > Note: Please use {@link Html5#setSource} + * + * @param {Tech~SourceObject} [src] + * The source object you want to set on the `HTML5` techs element. + * + * @return {Tech~SourceObject|undefined} + * - The current source object when a source is not passed in. + * - undefined when setting + * + * @deprecated Since version 5. + */ + src(src) { + if (src === undefined) { + return this.el_.src; + } + + // Setting src through `src` instead of `setSrc` will be deprecated + this.setSrc(src); + } + + /** + * Reset the tech by removing all sources and then calling + * {@link Html5.resetMediaElement}. + */ + reset() { + Html5.resetMediaElement(this.el_); + } + + /** + * Get the current source on the `HTML5` Tech. Falls back to returning the source from + * the HTML5 media element. + * + * @return {Tech~SourceObject} + * The current source object from the HTML5 tech. With a fallback to the + * elements source. + */ + currentSrc() { + if (this.currentSource_) { + return this.currentSource_.src; + } + return this.el_.currentSrc; + } + + /** + * Set controls attribute for the HTML5 media Element. + * + * @param {string} val + * Value to set the controls attribute to + */ + setControls(val) { + this.el_.controls = !!val; + } + + /** + * Create and returns a remote {@link TextTrack} object. + * + * @param {string} kind + * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata) + * + * @param {string} [label] + * Label to identify the text track + * + * @param {string} [language] + * Two letter language abbreviation + * + * @return {TextTrack} + * The TextTrack that gets created. + */ + addTextTrack(kind, label, language) { + if (!this.featuresNativeTextTracks) { + return super.addTextTrack(kind, label, language); + } + return this.el_.addTextTrack(kind, label, language); + } + + /** + * Creates either native TextTrack or an emulated TextTrack depending + * on the value of `featuresNativeTextTracks` + * + * @param {Object} options + * The object should contain the options to initialize the TextTrack with. + * + * @param {string} [options.kind] + * `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata). + * + * @param {string} [options.label] + * Label to identify the text track + * + * @param {string} [options.language] + * Two letter language abbreviation. + * + * @param {boolean} [options.default] + * Default this track to on. + * + * @param {string} [options.id] + * The internal id to assign this track. + * + * @param {string} [options.src] + * A source url for the track. + * + * @return {HTMLTrackElement} + * The track element that gets created. + */ + createRemoteTextTrack(options) { + if (!this.featuresNativeTextTracks) { + return super.createRemoteTextTrack(options); + } + const htmlTrackElement = document.createElement('track'); + if (options.kind) { + htmlTrackElement.kind = options.kind; + } + if (options.label) { + htmlTrackElement.label = options.label; + } + if (options.language || options.srclang) { + htmlTrackElement.srclang = options.language || options.srclang; + } + if (options.default) { + htmlTrackElement.default = options.default; + } + if (options.id) { + htmlTrackElement.id = options.id; + } + if (options.src) { + htmlTrackElement.src = options.src; + } + return htmlTrackElement; + } + + /** + * Creates a remote text track object and returns an html track element. + * + * @param {Object} options The object should contain values for + * kind, language, label, and src (location of the WebVTT file) + * @param {boolean} [manualCleanup=false] if set to true, the TextTrack + * will not be removed from the TextTrackList and HtmlTrackElementList + * after a source change + * @return {HTMLTrackElement} An Html Track Element. + * This can be an emulated {@link HTMLTrackElement} or a native one. + * + */ + addRemoteTextTrack(options, manualCleanup) { + const htmlTrackElement = super.addRemoteTextTrack(options, manualCleanup); + if (this.featuresNativeTextTracks) { + this.el().appendChild(htmlTrackElement); + } + return htmlTrackElement; + } + + /** + * Remove remote `TextTrack` from `TextTrackList` object + * + * @param {TextTrack} track + * `TextTrack` object to remove + */ + removeRemoteTextTrack(track) { + super.removeRemoteTextTrack(track); + if (this.featuresNativeTextTracks) { + const tracks = this.$$('track'); + let i = tracks.length; + while (i--) { + if (track === tracks[i] || track === tracks[i].track) { + this.el().removeChild(tracks[i]); + } + } + } + } + + /** + * Gets available media playback quality metrics as specified by the W3C's Media + * Playback Quality API. + * + * @see [Spec]{@link https://wicg.github.io/media-playback-quality} + * + * @return {Object} + * An object with supported media playback quality metrics + */ + getVideoPlaybackQuality() { + if (typeof this.el().getVideoPlaybackQuality === 'function') { + return this.el().getVideoPlaybackQuality(); + } + const videoPlaybackQuality = {}; + if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') { + videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount; + videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount; + } + if (window.performance) { + videoPlaybackQuality.creationTime = window.performance.now(); + } + return videoPlaybackQuality; + } + } + + /* HTML5 Support Testing ---------------------------------------------------- */ + + /** + * Element for testing browser HTML5 media capabilities + * + * @type {Element} + * @constant + * @private + */ + defineLazyProperty(Html5, 'TEST_VID', function () { + if (!isReal()) { + return; + } + const video = document.createElement('video'); + const track = document.createElement('track'); + track.kind = 'captions'; + track.srclang = 'en'; + track.label = 'English'; + video.appendChild(track); + return video; + }); + + /** + * Check if HTML5 media is supported by this browser/device. + * + * @return {boolean} + * - True if HTML5 media is supported. + * - False if HTML5 media is not supported. + */ + Html5.isSupported = function () { + // IE with no Media Player is a LIAR! (#984) + try { + Html5.TEST_VID.volume = 0.5; + } catch (e) { + return false; + } + return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType); + }; + + /** + * Check if the tech can support the given type + * + * @param {string} type + * The mimetype to check + * @return {string} 'probably', 'maybe', or '' (empty string) + */ + Html5.canPlayType = function (type) { + return Html5.TEST_VID.canPlayType(type); + }; + + /** + * Check if the tech can support the given source + * + * @param {Object} srcObj + * The source object + * @param {Object} options + * The options passed to the tech + * @return {string} 'probably', 'maybe', or '' (empty string) + */ + Html5.canPlaySource = function (srcObj, options) { + return Html5.canPlayType(srcObj.type); + }; + + /** + * Check if the volume can be changed in this browser/device. + * Volume cannot be changed in a lot of mobile devices. + * Specifically, it can't be changed from 1 on iOS. + * + * @return {boolean} + * - True if volume can be controlled + * - False otherwise + */ + Html5.canControlVolume = function () { + // IE will error if Windows Media Player not installed #3315 + try { + const volume = Html5.TEST_VID.volume; + Html5.TEST_VID.volume = volume / 2 + 0.1; + const canControl = volume !== Html5.TEST_VID.volume; + + // With the introduction of iOS 15, there are cases where the volume is read as + // changed but reverts back to its original state at the start of the next tick. + // To determine whether volume can be controlled on iOS, + // a timeout is set and the volume is checked asynchronously. + // Since `features` doesn't currently work asynchronously, the value is manually set. + if (canControl && IS_IOS) { + window.setTimeout(() => { + if (Html5 && Html5.prototype) { + Html5.prototype.featuresVolumeControl = volume !== Html5.TEST_VID.volume; + } + }); + + // default iOS to false, which will be updated in the timeout above. + return false; + } + return canControl; + } catch (e) { + return false; + } + }; + + /** + * Check if the volume can be muted in this browser/device. + * Some devices, e.g. iOS, don't allow changing volume + * but permits muting/unmuting. + * + * @return {boolean} + * - True if volume can be muted + * - False otherwise + */ + Html5.canMuteVolume = function () { + try { + const muted = Html5.TEST_VID.muted; + + // in some versions of iOS muted property doesn't always + // work, so we want to set both property and attribute + Html5.TEST_VID.muted = !muted; + if (Html5.TEST_VID.muted) { + setAttribute(Html5.TEST_VID, 'muted', 'muted'); + } else { + removeAttribute(Html5.TEST_VID, 'muted', 'muted'); + } + return muted !== Html5.TEST_VID.muted; + } catch (e) { + return false; + } + }; + + /** + * Check if the playback rate can be changed in this browser/device. + * + * @return {boolean} + * - True if playback rate can be controlled + * - False otherwise + */ + Html5.canControlPlaybackRate = function () { + // Playback rate API is implemented in Android Chrome, but doesn't do anything + // https://github.com/videojs/video.js/issues/3180 + if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) { + return false; + } + // IE will error if Windows Media Player not installed #3315 + try { + const playbackRate = Html5.TEST_VID.playbackRate; + Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1; + return playbackRate !== Html5.TEST_VID.playbackRate; + } catch (e) { + return false; + } + }; + + /** + * Check if we can override a video/audio elements attributes, with + * Object.defineProperty. + * + * @return {boolean} + * - True if builtin attributes can be overridden + * - False otherwise + */ + Html5.canOverrideAttributes = function () { + // if we cannot overwrite the src/innerHTML property, there is no support + // iOS 7 safari for instance cannot do this. + try { + const noop = () => {}; + Object.defineProperty(document.createElement('video'), 'src', { + get: noop, + set: noop + }); + Object.defineProperty(document.createElement('audio'), 'src', { + get: noop, + set: noop + }); + Object.defineProperty(document.createElement('video'), 'innerHTML', { + get: noop, + set: noop + }); + Object.defineProperty(document.createElement('audio'), 'innerHTML', { + get: noop, + set: noop + }); + } catch (e) { + return false; + } + return true; + }; + + /** + * Check to see if native `TextTrack`s are supported by this browser/device. + * + * @return {boolean} + * - True if native `TextTrack`s are supported. + * - False otherwise + */ + Html5.supportsNativeTextTracks = function () { + return IS_ANY_SAFARI || IS_IOS && IS_CHROME; + }; + + /** + * Check to see if native `VideoTrack`s are supported by this browser/device + * + * @return {boolean} + * - True if native `VideoTrack`s are supported. + * - False otherwise + */ + Html5.supportsNativeVideoTracks = function () { + return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks); + }; + + /** + * Check to see if native `AudioTrack`s are supported by this browser/device + * + * @return {boolean} + * - True if native `AudioTrack`s are supported. + * - False otherwise + */ + Html5.supportsNativeAudioTracks = function () { + return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks); + }; + + /** + * An array of events available on the Html5 tech. + * + * @private + * @type {Array} + */ + Html5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange']; + + /** + * Boolean indicating whether the `Tech` supports volume control. + * + * @type {boolean} + * @default {@link Html5.canControlVolume} + */ + /** + * Boolean indicating whether the `Tech` supports muting volume. + * + * @type {boolean} + * @default {@link Html5.canMuteVolume} + */ + + /** + * Boolean indicating whether the `Tech` supports changing the speed at which the media + * plays. Examples: + * - Set player to play 2x (twice) as fast + * - Set player to play 0.5x (half) as fast + * + * @type {boolean} + * @default {@link Html5.canControlPlaybackRate} + */ + + /** + * Boolean indicating whether the `Tech` supports the `sourceset` event. + * + * @type {boolean} + * @default + */ + /** + * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s. + * + * @type {boolean} + * @default {@link Html5.supportsNativeTextTracks} + */ + /** + * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s. + * + * @type {boolean} + * @default {@link Html5.supportsNativeVideoTracks} + */ + /** + * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s. + * + * @type {boolean} + * @default {@link Html5.supportsNativeAudioTracks} + */ + [['featuresMuteControl', 'canMuteVolume'], ['featuresPlaybackRate', 'canControlPlaybackRate'], ['featuresSourceset', 'canOverrideAttributes'], ['featuresNativeTextTracks', 'supportsNativeTextTracks'], ['featuresNativeVideoTracks', 'supportsNativeVideoTracks'], ['featuresNativeAudioTracks', 'supportsNativeAudioTracks']].forEach(function ([key, fn]) { + defineLazyProperty(Html5.prototype, key, () => Html5[fn](), true); + }); + Html5.prototype.featuresVolumeControl = Html5.canControlVolume(); + + /** + * Boolean indicating whether the `HTML5` tech currently supports the media element + * moving in the DOM. iOS breaks if you move the media element, so this is set this to + * false there. Everywhere else this should be true. + * + * @type {boolean} + * @default + */ + Html5.prototype.movingMediaElementInDOM = !IS_IOS; + + // TODO: Previous comment: No longer appears to be used. Can probably be removed. + // Is this true? + /** + * Boolean indicating whether the `HTML5` tech currently supports automatic media resize + * when going into fullscreen. + * + * @type {boolean} + * @default + */ + Html5.prototype.featuresFullscreenResize = true; + + /** + * Boolean indicating whether the `HTML5` tech currently supports the progress event. + * If this is false, manual `progress` events will be triggered instead. + * + * @type {boolean} + * @default + */ + Html5.prototype.featuresProgressEvents = true; + + /** + * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event. + * If this is false, manual `timeupdate` events will be triggered instead. + * + * @default + */ + Html5.prototype.featuresTimeupdateEvents = true; + + /** + * Whether the HTML5 el supports `requestVideoFrameCallback` + * + * @type {boolean} + */ + Html5.prototype.featuresVideoFrameCallback = !!(Html5.TEST_VID && Html5.TEST_VID.requestVideoFrameCallback); + Html5.disposeMediaElement = function (el) { + if (!el) { + return; + } + if (el.parentNode) { + el.parentNode.removeChild(el); + } + + // remove any child track or source nodes to prevent their loading + while (el.hasChildNodes()) { + el.removeChild(el.firstChild); + } + + // remove any src reference. not setting `src=''` because that causes a warning + // in firefox + el.removeAttribute('src'); + + // force the media element to update its loading state by calling load() + // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793) + if (typeof el.load === 'function') { + // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473) + (function () { + try { + el.load(); + } catch (e) { + // not supported + } + })(); + } + }; + Html5.resetMediaElement = function (el) { + if (!el) { + return; + } + const sources = el.querySelectorAll('source'); + let i = sources.length; + while (i--) { + el.removeChild(sources[i]); + } + + // remove any src reference. + // not setting `src=''` because that throws an error + el.removeAttribute('src'); + if (typeof el.load === 'function') { + // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473) + (function () { + try { + el.load(); + } catch (e) { + // satisfy linter + } + })(); + } + }; + + /* Native HTML5 element property wrapping ----------------------------------- */ + // Wrap native boolean attributes with getters that check both property and attribute + // The list is as followed: + // muted, defaultMuted, autoplay, controls, loop, playsinline + [ + /** + * Get the value of `muted` from the media element. `muted` indicates + * that the volume for the media should be set to silent. This does not actually change + * the `volume` attribute. + * + * @method Html5#muted + * @return {boolean} + * - True if the value of `volume` should be ignored and the audio set to silent. + * - False if the value of `volume` should be used. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted} + */ + 'muted', + /** + * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates + * whether the media should start muted or not. Only changes the default state of the + * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the + * current state. + * + * @method Html5#defaultMuted + * @return {boolean} + * - The value of `defaultMuted` from the media element. + * - True indicates that the media should start muted. + * - False indicates that the media should not start muted + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted} + */ + 'defaultMuted', + /** + * Get the value of `autoplay` from the media element. `autoplay` indicates + * that the media should start to play as soon as the page is ready. + * + * @method Html5#autoplay + * @return {boolean} + * - The value of `autoplay` from the media element. + * - True indicates that the media should start as soon as the page loads. + * - False indicates that the media should not start as soon as the page loads. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay} + */ + 'autoplay', + /** + * Get the value of `controls` from the media element. `controls` indicates + * whether the native media controls should be shown or hidden. + * + * @method Html5#controls + * @return {boolean} + * - The value of `controls` from the media element. + * - True indicates that native controls should be showing. + * - False indicates that native controls should be hidden. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls} + */ + 'controls', + /** + * Get the value of `loop` from the media element. `loop` indicates + * that the media should return to the start of the media and continue playing once + * it reaches the end. + * + * @method Html5#loop + * @return {boolean} + * - The value of `loop` from the media element. + * - True indicates that playback should seek back to start once + * the end of a media is reached. + * - False indicates that playback should not loop back to the start when the + * end of the media is reached. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop} + */ + 'loop', + /** + * Get the value of `playsinline` from the media element. `playsinline` indicates + * to the browser that non-fullscreen playback is preferred when fullscreen + * playback is the native default, such as in iOS Safari. + * + * @method Html5#playsinline + * @return {boolean} + * - The value of `playsinline` from the media element. + * - True indicates that the media should play inline. + * - False indicates that the media should not play inline. + * + * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline} + */ + 'playsinline'].forEach(function (prop) { + Html5.prototype[prop] = function () { + return this.el_[prop] || this.el_.hasAttribute(prop); + }; + }); + + // Wrap native boolean attributes with setters that set both property and attribute + // The list is as followed: + // setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline + // setControls is special-cased above + [ + /** + * Set the value of `muted` on the media element. `muted` indicates that the current + * audio level should be silent. + * + * @method Html5#setMuted + * @param {boolean} muted + * - True if the audio should be set to silent + * - False otherwise + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted} + */ + 'muted', + /** + * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current + * audio level should be silent, but will only effect the muted level on initial playback.. + * + * @method Html5.prototype.setDefaultMuted + * @param {boolean} defaultMuted + * - True if the audio should be set to silent + * - False otherwise + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted} + */ + 'defaultMuted', + /** + * Set the value of `autoplay` on the media element. `autoplay` indicates + * that the media should start to play as soon as the page is ready. + * + * @method Html5#setAutoplay + * @param {boolean} autoplay + * - True indicates that the media should start as soon as the page loads. + * - False indicates that the media should not start as soon as the page loads. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay} + */ + 'autoplay', + /** + * Set the value of `loop` on the media element. `loop` indicates + * that the media should return to the start of the media and continue playing once + * it reaches the end. + * + * @method Html5#setLoop + * @param {boolean} loop + * - True indicates that playback should seek back to start once + * the end of a media is reached. + * - False indicates that playback should not loop back to the start when the + * end of the media is reached. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop} + */ + 'loop', + /** + * Set the value of `playsinline` from the media element. `playsinline` indicates + * to the browser that non-fullscreen playback is preferred when fullscreen + * playback is the native default, such as in iOS Safari. + * + * @method Html5#setPlaysinline + * @param {boolean} playsinline + * - True indicates that the media should play inline. + * - False indicates that the media should not play inline. + * + * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline} + */ + 'playsinline'].forEach(function (prop) { + Html5.prototype['set' + toTitleCase(prop)] = function (v) { + this.el_[prop] = v; + if (v) { + this.el_.setAttribute(prop, prop); + } else { + this.el_.removeAttribute(prop); + } + }; + }); + + // Wrap native properties with a getter + // The list is as followed + // paused, currentTime, buffered, volume, poster, preload, error, seeking + // seekable, ended, playbackRate, defaultPlaybackRate, disablePictureInPicture + // played, networkState, readyState, videoWidth, videoHeight, crossOrigin + [ + /** + * Get the value of `paused` from the media element. `paused` indicates whether the media element + * is currently paused or not. + * + * @method Html5#paused + * @return {boolean} + * The value of `paused` from the media element. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused} + */ + 'paused', + /** + * Get the value of `currentTime` from the media element. `currentTime` indicates + * the current second that the media is at in playback. + * + * @method Html5#currentTime + * @return {number} + * The value of `currentTime` from the media element. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime} + */ + 'currentTime', + /** + * Get the value of `buffered` from the media element. `buffered` is a `TimeRange` + * object that represents the parts of the media that are already downloaded and + * available for playback. + * + * @method Html5#buffered + * @return {TimeRange} + * The value of `buffered` from the media element. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered} + */ + 'buffered', + /** + * Get the value of `volume` from the media element. `volume` indicates + * the current playback volume of audio for a media. `volume` will be a value from 0 + * (silent) to 1 (loudest and default). + * + * @method Html5#volume + * @return {number} + * The value of `volume` from the media element. Value will be between 0-1. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume} + */ + 'volume', + /** + * Get the value of `poster` from the media element. `poster` indicates + * that the url of an image file that can/will be shown when no media data is available. + * + * @method Html5#poster + * @return {string} + * The value of `poster` from the media element. Value will be a url to an + * image. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster} + */ + 'poster', + /** + * Get the value of `preload` from the media element. `preload` indicates + * what should download before the media is interacted with. It can have the following + * values: + * - none: nothing should be downloaded + * - metadata: poster and the first few frames of the media may be downloaded to get + * media dimensions and other metadata + * - auto: allow the media and metadata for the media to be downloaded before + * interaction + * + * @method Html5#preload + * @return {string} + * The value of `preload` from the media element. Will be 'none', 'metadata', + * or 'auto'. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload} + */ + 'preload', + /** + * Get the value of the `error` from the media element. `error` indicates any + * MediaError that may have occurred during playback. If error returns null there is no + * current error. + * + * @method Html5#error + * @return {MediaError|null} + * The value of `error` from the media element. Will be `MediaError` if there + * is a current error and null otherwise. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error} + */ + 'error', + /** + * Get the value of `seeking` from the media element. `seeking` indicates whether the + * media is currently seeking to a new position or not. + * + * @method Html5#seeking + * @return {boolean} + * - The value of `seeking` from the media element. + * - True indicates that the media is currently seeking to a new position. + * - False indicates that the media is not seeking to a new position at this time. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking} + */ + 'seeking', + /** + * Get the value of `seekable` from the media element. `seekable` returns a + * `TimeRange` object indicating ranges of time that can currently be `seeked` to. + * + * @method Html5#seekable + * @return {TimeRange} + * The value of `seekable` from the media element. A `TimeRange` object + * indicating the current ranges of time that can be seeked to. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable} + */ + 'seekable', + /** + * Get the value of `ended` from the media element. `ended` indicates whether + * the media has reached the end or not. + * + * @method Html5#ended + * @return {boolean} + * - The value of `ended` from the media element. + * - True indicates that the media has ended. + * - False indicates that the media has not ended. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended} + */ + 'ended', + /** + * Get the value of `playbackRate` from the media element. `playbackRate` indicates + * the rate at which the media is currently playing back. Examples: + * - if playbackRate is set to 2, media will play twice as fast. + * - if playbackRate is set to 0.5, media will play half as fast. + * + * @method Html5#playbackRate + * @return {number} + * The value of `playbackRate` from the media element. A number indicating + * the current playback speed of the media, where 1 is normal speed. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate} + */ + 'playbackRate', + /** + * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates + * the rate at which the media is currently playing back. This value will not indicate the current + * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that. + * + * Examples: + * - if defaultPlaybackRate is set to 2, media will play twice as fast. + * - if defaultPlaybackRate is set to 0.5, media will play half as fast. + * + * @method Html5.prototype.defaultPlaybackRate + * @return {number} + * The value of `defaultPlaybackRate` from the media element. A number indicating + * the current playback speed of the media, where 1 is normal speed. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate} + */ + 'defaultPlaybackRate', + /** + * Get the value of 'disablePictureInPicture' from the video element. + * + * @method Html5#disablePictureInPicture + * @return {boolean} value + * - The value of `disablePictureInPicture` from the video element. + * - True indicates that the video can't be played in Picture-In-Picture mode + * - False indicates that the video can be played in Picture-In-Picture mode + * + * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip} + */ + 'disablePictureInPicture', + /** + * Get the value of `played` from the media element. `played` returns a `TimeRange` + * object representing points in the media timeline that have been played. + * + * @method Html5#played + * @return {TimeRange} + * The value of `played` from the media element. A `TimeRange` object indicating + * the ranges of time that have been played. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played} + */ + 'played', + /** + * Get the value of `networkState` from the media element. `networkState` indicates + * the current network state. It returns an enumeration from the following list: + * - 0: NETWORK_EMPTY + * - 1: NETWORK_IDLE + * - 2: NETWORK_LOADING + * - 3: NETWORK_NO_SOURCE + * + * @method Html5#networkState + * @return {number} + * The value of `networkState` from the media element. This will be a number + * from the list in the description. + * + * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate} + */ + 'networkState', + /** + * Get the value of `readyState` from the media element. `readyState` indicates + * the current state of the media element. It returns an enumeration from the + * following list: + * - 0: HAVE_NOTHING + * - 1: HAVE_METADATA + * - 2: HAVE_CURRENT_DATA + * - 3: HAVE_FUTURE_DATA + * - 4: HAVE_ENOUGH_DATA + * + * @method Html5#readyState + * @return {number} + * The value of `readyState` from the media element. This will be a number + * from the list in the description. + * + * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states} + */ + 'readyState', + /** + * Get the value of `videoWidth` from the video element. `videoWidth` indicates + * the current width of the video in css pixels. + * + * @method Html5#videoWidth + * @return {number} + * The value of `videoWidth` from the video element. This will be a number + * in css pixels. + * + * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth} + */ + 'videoWidth', + /** + * Get the value of `videoHeight` from the video element. `videoHeight` indicates + * the current height of the video in css pixels. + * + * @method Html5#videoHeight + * @return {number} + * The value of `videoHeight` from the video element. This will be a number + * in css pixels. + * + * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth} + */ + 'videoHeight', + /** + * Get the value of `crossOrigin` from the media element. `crossOrigin` indicates + * to the browser that should sent the cookies along with the requests for the + * different assets/playlists + * + * @method Html5#crossOrigin + * @return {string} + * - anonymous indicates that the media should not sent cookies. + * - use-credentials indicates that the media should sent cookies along the requests. + * + * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin} + */ + 'crossOrigin'].forEach(function (prop) { + Html5.prototype[prop] = function () { + return this.el_[prop]; + }; + }); + + // Wrap native properties with a setter in this format: + // set + toTitleCase(name) + // The list is as follows: + // setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate, + // setDisablePictureInPicture, setCrossOrigin + [ + /** + * Set the value of `volume` on the media element. `volume` indicates the current + * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and + * so on. + * + * @method Html5#setVolume + * @param {number} percentAsDecimal + * The volume percent as a decimal. Valid range is from 0-1. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume} + */ + 'volume', + /** + * Set the value of `src` on the media element. `src` indicates the current + * {@link Tech~SourceObject} for the media. + * + * @method Html5#setSrc + * @param {Tech~SourceObject} src + * The source object to set as the current source. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src} + */ + 'src', + /** + * Set the value of `poster` on the media element. `poster` is the url to + * an image file that can/will be shown when no media data is available. + * + * @method Html5#setPoster + * @param {string} poster + * The url to an image that should be used as the `poster` for the media + * element. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster} + */ + 'poster', + /** + * Set the value of `preload` on the media element. `preload` indicates + * what should download before the media is interacted with. It can have the following + * values: + * - none: nothing should be downloaded + * - metadata: poster and the first few frames of the media may be downloaded to get + * media dimensions and other metadata + * - auto: allow the media and metadata for the media to be downloaded before + * interaction + * + * @method Html5#setPreload + * @param {string} preload + * The value of `preload` to set on the media element. Must be 'none', 'metadata', + * or 'auto'. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload} + */ + 'preload', + /** + * Set the value of `playbackRate` on the media element. `playbackRate` indicates + * the rate at which the media should play back. Examples: + * - if playbackRate is set to 2, media will play twice as fast. + * - if playbackRate is set to 0.5, media will play half as fast. + * + * @method Html5#setPlaybackRate + * @return {number} + * The value of `playbackRate` from the media element. A number indicating + * the current playback speed of the media, where 1 is normal speed. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate} + */ + 'playbackRate', + /** + * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates + * the rate at which the media should play back upon initial startup. Changing this value + * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}. + * + * Example Values: + * - if playbackRate is set to 2, media will play twice as fast. + * - if playbackRate is set to 0.5, media will play half as fast. + * + * @method Html5.prototype.setDefaultPlaybackRate + * @return {number} + * The value of `defaultPlaybackRate` from the media element. A number indicating + * the current playback speed of the media, where 1 is normal speed. + * + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate} + */ + 'defaultPlaybackRate', + /** + * Prevents the browser from suggesting a Picture-in-Picture context menu + * or to request Picture-in-Picture automatically in some cases. + * + * @method Html5#setDisablePictureInPicture + * @param {boolean} value + * The true value will disable Picture-in-Picture mode. + * + * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip} + */ + 'disablePictureInPicture', + /** + * Set the value of `crossOrigin` from the media element. `crossOrigin` indicates + * to the browser that should sent the cookies along with the requests for the + * different assets/playlists + * + * @method Html5#setCrossOrigin + * @param {string} crossOrigin + * - anonymous indicates that the media should not sent cookies. + * - use-credentials indicates that the media should sent cookies along the requests. + * + * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin} + */ + 'crossOrigin'].forEach(function (prop) { + Html5.prototype['set' + toTitleCase(prop)] = function (v) { + this.el_[prop] = v; + }; + }); + + // wrap native functions with a function + // The list is as follows: + // pause, load, play + [ + /** + * A wrapper around the media elements `pause` function. This will call the `HTML5` + * media elements `pause` function. + * + * @method Html5#pause + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause} + */ + 'pause', + /** + * A wrapper around the media elements `load` function. This will call the `HTML5`s + * media element `load` function. + * + * @method Html5#load + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load} + */ + 'load', + /** + * A wrapper around the media elements `play` function. This will call the `HTML5`s + * media element `play` function. + * + * @method Html5#play + * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play} + */ + 'play'].forEach(function (prop) { + Html5.prototype[prop] = function () { + return this.el_[prop](); + }; + }); + Tech.withSourceHandlers(Html5); + + /** + * Native source handler for Html5, simply passes the source to the media element. + * + * @property {Tech~SourceObject} source + * The source object + * + * @property {Html5} tech + * The instance of the HTML5 tech. + */ + Html5.nativeSourceHandler = {}; + + /** + * Check if the media element can play the given mime type. + * + * @param {string} type + * The mimetype to check + * + * @return {string} + * 'probably', 'maybe', or '' (empty string) + */ + Html5.nativeSourceHandler.canPlayType = function (type) { + // IE without MediaPlayer throws an error (#519) + try { + return Html5.TEST_VID.canPlayType(type); + } catch (e) { + return ''; + } + }; + + /** + * Check if the media element can handle a source natively. + * + * @param {Tech~SourceObject} source + * The source object + * + * @param {Object} [options] + * Options to be passed to the tech. + * + * @return {string} + * 'probably', 'maybe', or '' (empty string). + */ + Html5.nativeSourceHandler.canHandleSource = function (source, options) { + // If a type was provided we should rely on that + if (source.type) { + return Html5.nativeSourceHandler.canPlayType(source.type); + + // If no type, fall back to checking 'video/[EXTENSION]' + } else if (source.src) { + const ext = getFileExtension(source.src); + return Html5.nativeSourceHandler.canPlayType(`video/${ext}`); + } + return ''; + }; + + /** + * Pass the source to the native media element. + * + * @param {Tech~SourceObject} source + * The source object + * + * @param {Html5} tech + * The instance of the Html5 tech + * + * @param {Object} [options] + * The options to pass to the source + */ + Html5.nativeSourceHandler.handleSource = function (source, tech, options) { + tech.setSrc(source.src); + }; + + /** + * A noop for the native dispose function, as cleanup is not needed. + */ + Html5.nativeSourceHandler.dispose = function () {}; + + // Register the native source handler + Html5.registerSourceHandler(Html5.nativeSourceHandler); + Tech.registerTech('Html5', Html5); + + /** + * @file player.js + */ + + // The following tech events are simply re-triggered + // on the player when they happen + const TECH_EVENTS_RETRIGGER = [ + /** + * Fired while the user agent is downloading media data. + * + * @event Player#progress + * @type {Event} + */ + /** + * Retrigger the `progress` event that was triggered by the {@link Tech}. + * + * @private + * @method Player#handleTechProgress_ + * @fires Player#progress + * @listens Tech#progress + */ + 'progress', + /** + * Fires when the loading of an audio/video is aborted. + * + * @event Player#abort + * @type {Event} + */ + /** + * Retrigger the `abort` event that was triggered by the {@link Tech}. + * + * @private + * @method Player#handleTechAbort_ + * @fires Player#abort + * @listens Tech#abort + */ + 'abort', + /** + * Fires when the browser is intentionally not getting media data. + * + * @event Player#suspend + * @type {Event} + */ + /** + * Retrigger the `suspend` event that was triggered by the {@link Tech}. + * + * @private + * @method Player#handleTechSuspend_ + * @fires Player#suspend + * @listens Tech#suspend + */ + 'suspend', + /** + * Fires when the current playlist is empty. + * + * @event Player#emptied + * @type {Event} + */ + /** + * Retrigger the `emptied` event that was triggered by the {@link Tech}. + * + * @private + * @method Player#handleTechEmptied_ + * @fires Player#emptied + * @listens Tech#emptied + */ + 'emptied', + /** + * Fires when the browser is trying to get media data, but data is not available. + * + * @event Player#stalled + * @type {Event} + */ + /** + * Retrigger the `stalled` event that was triggered by the {@link Tech}. + * + * @private + * @method Player#handleTechStalled_ + * @fires Player#stalled + * @listens Tech#stalled + */ + 'stalled', + /** + * Fires when the browser has loaded meta data for the audio/video. + * + * @event Player#loadedmetadata + * @type {Event} + */ + /** + * Retrigger the `loadedmetadata` event that was triggered by the {@link Tech}. + * + * @private + * @method Player#handleTechLoadedmetadata_ + * @fires Player#loadedmetadata + * @listens Tech#loadedmetadata + */ + 'loadedmetadata', + /** + * Fires when the browser has loaded the current frame of the audio/video. + * + * @event Player#loadeddata + * @type {event} + */ + /** + * Retrigger the `loadeddata` event that was triggered by the {@link Tech}. + * + * @private + * @method Player#handleTechLoaddeddata_ + * @fires Player#loadeddata + * @listens Tech#loadeddata + */ + 'loadeddata', + /** + * Fires when the current playback position has changed. + * + * @event Player#timeupdate + * @type {event} + */ + /** + * Retrigger the `timeupdate` event that was triggered by the {@link Tech}. + * + * @private + * @method Player#handleTechTimeUpdate_ + * @fires Player#timeupdate + * @listens Tech#timeupdate + */ + 'timeupdate', + /** + * Fires when the video's intrinsic dimensions change + * + * @event Player#resize + * @type {event} + */ + /** + * Retrigger the `resize` event that was triggered by the {@link Tech}. + * + * @private + * @method Player#handleTechResize_ + * @fires Player#resize + * @listens Tech#resize + */ + 'resize', + /** + * Fires when the volume has been changed + * + * @event Player#volumechange + * @type {event} + */ + /** + * Retrigger the `volumechange` event that was triggered by the {@link Tech}. + * + * @private + * @method Player#handleTechVolumechange_ + * @fires Player#volumechange + * @listens Tech#volumechange + */ + 'volumechange', + /** + * Fires when the text track has been changed + * + * @event Player#texttrackchange + * @type {event} + */ + /** + * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}. + * + * @private + * @method Player#handleTechTexttrackchange_ + * @fires Player#texttrackchange + * @listens Tech#texttrackchange + */ + 'texttrackchange']; + + // events to queue when playback rate is zero + // this is a hash for the sole purpose of mapping non-camel-cased event names + // to camel-cased function names + const TECH_EVENTS_QUEUE = { + canplay: 'CanPlay', + canplaythrough: 'CanPlayThrough', + playing: 'Playing', + seeked: 'Seeked' + }; + const BREAKPOINT_ORDER = ['tiny', 'xsmall', 'small', 'medium', 'large', 'xlarge', 'huge']; + const BREAKPOINT_CLASSES = {}; + + // grep: vjs-layout-tiny + // grep: vjs-layout-x-small + // grep: vjs-layout-small + // grep: vjs-layout-medium + // grep: vjs-layout-large + // grep: vjs-layout-x-large + // grep: vjs-layout-huge + BREAKPOINT_ORDER.forEach(k => { + const v = k.charAt(0) === 'x' ? `x-${k.substring(1)}` : k; + BREAKPOINT_CLASSES[k] = `vjs-layout-${v}`; + }); + const DEFAULT_BREAKPOINTS = { + tiny: 210, + xsmall: 320, + small: 425, + medium: 768, + large: 1440, + xlarge: 2560, + huge: Infinity + }; + + /** + * An instance of the `Player` class is created when any of the Video.js setup methods + * are used to initialize a video. + * + * After an instance has been created it can be accessed globally in three ways: + * 1. By calling `videojs.getPlayer('example_video_1');` + * 2. By calling `videojs('example_video_1');` (not recommended) + * 2. By using it directly via `videojs.players.example_video_1;` + * + * @extends Component + * @global + */ + class Player extends Component { + /** + * Create an instance of this class. + * + * @param {Element} tag + * The original video DOM element used for configuring options. + * + * @param {Object} [options] + * Object of option names and values. + * + * @param {Function} [ready] + * Ready callback function. + */ + constructor(tag, options, ready) { + // Make sure tag ID exists + // also here.. probably better + tag.id = tag.id || options.id || `vjs_video_${newGUID()}`; + + // Set Options + // The options argument overrides options set in the video tag + // which overrides globally set options. + // This latter part coincides with the load order + // (tag must exist before Player) + options = Object.assign(Player.getTagSettings(tag), options); + + // Delay the initialization of children because we need to set up + // player properties first, and can't use `this` before `super()` + options.initChildren = false; + + // Same with creating the element + options.createEl = false; + + // don't auto mixin the evented mixin + options.evented = false; + + // we don't want the player to report touch activity on itself + // see enableTouchActivity in Component + options.reportTouchActivity = false; + + // If language is not set, get the closest lang attribute + if (!options.language) { + const closest = tag.closest('[lang]'); + if (closest) { + options.language = closest.getAttribute('lang'); + } + } + + // Run base component initializing with new options + super(null, options, ready); + + // Create bound methods for document listeners. + this.boundDocumentFullscreenChange_ = e => this.documentFullscreenChange_(e); + this.boundFullWindowOnEscKey_ = e => this.fullWindowOnEscKey(e); + this.boundUpdateStyleEl_ = e => this.updateStyleEl_(e); + this.boundApplyInitTime_ = e => this.applyInitTime_(e); + this.boundUpdateCurrentBreakpoint_ = e => this.updateCurrentBreakpoint_(e); + this.boundHandleTechClick_ = e => this.handleTechClick_(e); + this.boundHandleTechDoubleClick_ = e => this.handleTechDoubleClick_(e); + this.boundHandleTechTouchStart_ = e => this.handleTechTouchStart_(e); + this.boundHandleTechTouchMove_ = e => this.handleTechTouchMove_(e); + this.boundHandleTechTouchEnd_ = e => this.handleTechTouchEnd_(e); + this.boundHandleTechTap_ = e => this.handleTechTap_(e); + + // default isFullscreen_ to false + this.isFullscreen_ = false; + + // create logger + this.log = createLogger(this.id_); + + // Hold our own reference to fullscreen api so it can be mocked in tests + this.fsApi_ = FullscreenApi; + + // Tracks when a tech changes the poster + this.isPosterFromTech_ = false; + + // Holds callback info that gets queued when playback rate is zero + // and a seek is happening + this.queuedCallbacks_ = []; + + // Turn off API access because we're loading a new tech that might load asynchronously + this.isReady_ = false; + + // Init state hasStarted_ + this.hasStarted_ = false; + + // Init state userActive_ + this.userActive_ = false; + + // Init debugEnabled_ + this.debugEnabled_ = false; + + // Init state audioOnlyMode_ + this.audioOnlyMode_ = false; + + // Init state audioPosterMode_ + this.audioPosterMode_ = false; + + // Init state audioOnlyCache_ + this.audioOnlyCache_ = { + playerHeight: null, + hiddenChildren: [] + }; + + // if the global option object was accidentally blown away by + // someone, bail early with an informative error + if (!this.options_ || !this.options_.techOrder || !this.options_.techOrder.length) { + throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?'); + } + + // Store the original tag used to set options + this.tag = tag; + + // Store the tag attributes used to restore html5 element + this.tagAttributes = tag && getAttributes(tag); + + // Update current language + this.language(this.options_.language); + + // Update Supported Languages + if (options.languages) { + // Normalise player option languages to lowercase + const languagesToLower = {}; + Object.getOwnPropertyNames(options.languages).forEach(function (name) { + languagesToLower[name.toLowerCase()] = options.languages[name]; + }); + this.languages_ = languagesToLower; + } else { + this.languages_ = Player.prototype.options_.languages; + } + this.resetCache_(); + + // Set poster + /** @type string */ + this.poster_ = options.poster || ''; + + // Set controls + /** @type {boolean} */ + this.controls_ = !!options.controls; + + // Original tag settings stored in options + // now remove immediately so native controls don't flash. + // May be turned back on by HTML5 tech if nativeControlsForTouch is true + tag.controls = false; + tag.removeAttribute('controls'); + this.changingSrc_ = false; + this.playCallbacks_ = []; + this.playTerminatedQueue_ = []; + + // the attribute overrides the option + if (tag.hasAttribute('autoplay')) { + this.autoplay(true); + } else { + // otherwise use the setter to validate and + // set the correct value. + this.autoplay(this.options_.autoplay); + } + + // check plugins + if (options.plugins) { + Object.keys(options.plugins).forEach(name => { + if (typeof this[name] !== 'function') { + throw new Error(`plugin "${name}" does not exist`); + } + }); + } + + /* + * Store the internal state of scrubbing + * + * @private + * @return {Boolean} True if the user is scrubbing + */ + this.scrubbing_ = false; + this.el_ = this.createEl(); + + // Make this an evented object and use `el_` as its event bus. + evented(this, { + eventBusKey: 'el_' + }); + + // listen to document and player fullscreenchange handlers so we receive those events + // before a user can receive them so we can update isFullscreen appropriately. + // make sure that we listen to fullscreenchange events before everything else to make sure that + // our isFullscreen method is updated properly for internal components as well as external. + if (this.fsApi_.requestFullscreen) { + on(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_); + this.on(this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_); + } + if (this.fluid_) { + this.on(['playerreset', 'resize'], this.boundUpdateStyleEl_); + } + // We also want to pass the original player options to each component and plugin + // as well so they don't need to reach back into the player for options later. + // We also need to do another copy of this.options_ so we don't end up with + // an infinite loop. + const playerOptionsCopy = merge(this.options_); + + // Load plugins + if (options.plugins) { + Object.keys(options.plugins).forEach(name => { + this[name](options.plugins[name]); + }); + } + + // Enable debug mode to fire debugon event for all plugins. + if (options.debug) { + this.debug(true); + } + this.options_.playerOptions = playerOptionsCopy; + this.middleware_ = []; + this.playbackRates(options.playbackRates); + if (options.experimentalSvgIcons) { + // Add SVG Sprite to the DOM + const parser = new window.DOMParser(); + const parsedSVG = parser.parseFromString(icons, 'image/svg+xml'); + const errorNode = parsedSVG.querySelector('parsererror'); + if (errorNode) { + log.warn('Failed to load SVG Icons. Falling back to Font Icons.'); + this.options_.experimentalSvgIcons = null; + } else { + const sprite = parsedSVG.documentElement; + sprite.style.display = 'none'; + this.el_.appendChild(sprite); + this.addClass('vjs-svg-icons-enabled'); + } + } + this.initChildren(); + + // Set isAudio based on whether or not an audio tag was used + this.isAudio(tag.nodeName.toLowerCase() === 'audio'); + + // Update controls className. Can't do this when the controls are initially + // set because the element doesn't exist yet. + if (this.controls()) { + this.addClass('vjs-controls-enabled'); + } else { + this.addClass('vjs-controls-disabled'); + } + + // Set ARIA label and region role depending on player type + this.el_.setAttribute('role', 'region'); + if (this.isAudio()) { + this.el_.setAttribute('aria-label', this.localize('Audio Player')); + } else { + this.el_.setAttribute('aria-label', this.localize('Video Player')); + } + if (this.isAudio()) { + this.addClass('vjs-audio'); + } + + // TODO: Make this smarter. Toggle user state between touching/mousing + // using events, since devices can have both touch and mouse events. + // TODO: Make this check be performed again when the window switches between monitors + // (See https://github.com/videojs/video.js/issues/5683) + if (TOUCH_ENABLED) { + this.addClass('vjs-touch-enabled'); + } + + // iOS Safari has broken hover handling + if (!IS_IOS) { + this.addClass('vjs-workinghover'); + } + + // Make player easily findable by ID + Player.players[this.id_] = this; + + // Add a major version class to aid css in plugins + const majorVersion = version.split('.')[0]; + this.addClass(`vjs-v${majorVersion}`); + + // When the player is first initialized, trigger activity so components + // like the control bar show themselves if needed + this.userActive(true); + this.reportUserActivity(); + this.one('play', e => this.listenForUserActivity_(e)); + this.on('keydown', e => this.handleKeyDown(e)); + this.on('languagechange', e => this.handleLanguagechange(e)); + this.breakpoints(this.options_.breakpoints); + this.responsive(this.options_.responsive); + + // Calling both the audio mode methods after the player is fully + // setup to be able to listen to the events triggered by them + this.on('ready', () => { + // Calling the audioPosterMode method first so that + // the audioOnlyMode can take precedence when both options are set to true + this.audioPosterMode(this.options_.audioPosterMode); + this.audioOnlyMode(this.options_.audioOnlyMode); + }); + } + + /** + * Destroys the video player and does any necessary cleanup. + * + * This is especially helpful if you are dynamically adding and removing videos + * to/from the DOM. + * + * @fires Player#dispose + */ + dispose() { + /** + * Called when the player is being disposed of. + * + * @event Player#dispose + * @type {Event} + */ + this.trigger('dispose'); + // prevent dispose from being called twice + this.off('dispose'); + + // Make sure all player-specific document listeners are unbound. This is + off(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_); + off(document, 'keydown', this.boundFullWindowOnEscKey_); + if (this.styleEl_ && this.styleEl_.parentNode) { + this.styleEl_.parentNode.removeChild(this.styleEl_); + this.styleEl_ = null; + } + + // Kill reference to this player + Player.players[this.id_] = null; + if (this.tag && this.tag.player) { + this.tag.player = null; + } + if (this.el_ && this.el_.player) { + this.el_.player = null; + } + if (this.tech_) { + this.tech_.dispose(); + this.isPosterFromTech_ = false; + this.poster_ = ''; + } + if (this.playerElIngest_) { + this.playerElIngest_ = null; + } + if (this.tag) { + this.tag = null; + } + clearCacheForPlayer(this); + + // remove all event handlers for track lists + // all tracks and track listeners are removed on + // tech dispose + ALL.names.forEach(name => { + const props = ALL[name]; + const list = this[props.getterName](); + + // if it is not a native list + // we have to manually remove event listeners + if (list && list.off) { + list.off(); + } + }); + + // the actual .el_ is removed here, or replaced if + super.dispose({ + restoreEl: this.options_.restoreEl + }); + } + + /** + * Create the `Player`'s DOM element. + * + * @return {Element} + * The DOM element that gets created. + */ + createEl() { + let tag = this.tag; + let el; + let playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player'); + const divEmbed = this.tag.tagName.toLowerCase() === 'video-js'; + if (playerElIngest) { + el = this.el_ = tag.parentNode; + } else if (!divEmbed) { + el = this.el_ = super.createEl('div'); + } + + // Copy over all the attributes from the tag, including ID and class + // ID will now reference player box, not the video tag + const attrs = getAttributes(tag); + if (divEmbed) { + el = this.el_ = tag; + tag = this.tag = document.createElement('video'); + while (el.children.length) { + tag.appendChild(el.firstChild); + } + if (!hasClass(el, 'video-js')) { + addClass(el, 'video-js'); + } + el.appendChild(tag); + playerElIngest = this.playerElIngest_ = el; + // move properties over from our custom `video-js` element + // to our new `video` element. This will move things like + // `src` or `controls` that were set via js before the player + // was initialized. + Object.keys(el).forEach(k => { + try { + tag[k] = el[k]; + } catch (e) { + // we got a a property like outerHTML which we can't actually copy, ignore it + } + }); + } + + // set tabindex to -1 to remove the video element from the focus order + tag.setAttribute('tabindex', '-1'); + attrs.tabindex = '-1'; + + // Workaround for #4583 on Chrome (on Windows) with JAWS. + // See https://github.com/FreedomScientific/VFO-standards-support/issues/78 + // Note that we can't detect if JAWS is being used, but this ARIA attribute + // doesn't change behavior of Chrome if JAWS is not being used + if (IS_CHROME && IS_WINDOWS) { + tag.setAttribute('role', 'application'); + attrs.role = 'application'; + } + + // Remove width/height attrs from tag so CSS can make it 100% width/height + tag.removeAttribute('width'); + tag.removeAttribute('height'); + if ('width' in attrs) { + delete attrs.width; + } + if ('height' in attrs) { + delete attrs.height; + } + Object.getOwnPropertyNames(attrs).forEach(function (attr) { + // don't copy over the class attribute to the player element when we're in a div embed + // the class is already set up properly in the divEmbed case + // and we want to make sure that the `video-js` class doesn't get lost + if (!(divEmbed && attr === 'class')) { + el.setAttribute(attr, attrs[attr]); + } + if (divEmbed) { + tag.setAttribute(attr, attrs[attr]); + } + }); + + // Update tag id/class for use as HTML5 playback tech + // Might think we should do this after embedding in container so .vjs-tech class + // doesn't flash 100% width/height, but class only applies with .video-js parent + tag.playerId = tag.id; + tag.id += '_html5_api'; + tag.className = 'vjs-tech'; + + // Make player findable on elements + tag.player = el.player = this; + // Default state of video is paused + this.addClass('vjs-paused'); + const deviceClassNames = ['IS_SMART_TV', 'IS_TIZEN', 'IS_WEBOS', 'IS_ANDROID', 'IS_IPAD', 'IS_IPHONE'].filter(key => browser[key]).map(key => { + return 'vjs-device-' + key.substring(3).toLowerCase().replace(/\_/g, '-'); + }); + this.addClass(...deviceClassNames); + + // Add a style element in the player that we'll use to set the width/height + // of the player in a way that's still overridable by CSS, just like the + // video element + if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true) { + this.styleEl_ = createStyleElement('vjs-styles-dimensions'); + const defaultsStyleEl = $('.vjs-styles-defaults'); + const head = $('head'); + head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild); + } + this.fill_ = false; + this.fluid_ = false; + + // Pass in the width/height/aspectRatio options which will update the style el + this.width(this.options_.width); + this.height(this.options_.height); + this.fill(this.options_.fill); + this.fluid(this.options_.fluid); + this.aspectRatio(this.options_.aspectRatio); + // support both crossOrigin and crossorigin to reduce confusion and issues around the name + this.crossOrigin(this.options_.crossOrigin || this.options_.crossorigin); + + // Hide any links within the video/audio tag, + // because IE doesn't hide them completely from screen readers. + const links = tag.getElementsByTagName('a'); + for (let i = 0; i < links.length; i++) { + const linkEl = links.item(i); + addClass(linkEl, 'vjs-hidden'); + linkEl.setAttribute('hidden', 'hidden'); + } + + // insertElFirst seems to cause the networkState to flicker from 3 to 2, so + // keep track of the original for later so we can know if the source originally failed + tag.initNetworkState_ = tag.networkState; + + // Wrap video tag in div (el/box) container + if (tag.parentNode && !playerElIngest) { + tag.parentNode.insertBefore(el, tag); + } + + // insert the tag as the first child of the player element + // then manually add it to the children array so that this.addChild + // will work properly for other components + // + // Breaks iPhone, fixed in HTML5 setup. + prependTo(tag, el); + this.children_.unshift(tag); + + // Set lang attr on player to ensure CSS :lang() in consistent with player + // if it's been set to something different to the doc + this.el_.setAttribute('lang', this.language_); + this.el_.setAttribute('translate', 'no'); + this.el_ = el; + return el; + } + + /** + * Get or set the `Player`'s crossOrigin option. For the HTML5 player, this + * sets the `crossOrigin` property on the `<video>` tag to control the CORS + * behavior. + * + * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin} + * + * @param {string|null} [value] + * The value to set the `Player`'s crossOrigin to. If an argument is + * given, must be one of `'anonymous'` or `'use-credentials'`, or 'null'. + * + * @return {string|null|undefined} + * - The current crossOrigin value of the `Player` when getting. + * - undefined when setting + */ + crossOrigin(value) { + // `null` can be set to unset a value + if (typeof value === 'undefined') { + return this.techGet_('crossOrigin'); + } + if (value !== null && value !== 'anonymous' && value !== 'use-credentials') { + log.warn(`crossOrigin must be null, "anonymous" or "use-credentials", given "${value}"`); + return; + } + this.techCall_('setCrossOrigin', value); + if (this.posterImage) { + this.posterImage.crossOrigin(value); + } + return; + } + + /** + * A getter/setter for the `Player`'s width. Returns the player's configured value. + * To get the current width use `currentWidth()`. + * + * @param {number|string} [value] + * CSS value to set the `Player`'s width to. + * + * @return {number|undefined} + * - The current width of the `Player` when getting. + * - Nothing when setting + */ + width(value) { + return this.dimension('width', value); + } + + /** + * A getter/setter for the `Player`'s height. Returns the player's configured value. + * To get the current height use `currentheight()`. + * + * @param {number|string} [value] + * CSS value to set the `Player`'s height to. + * + * @return {number|undefined} + * - The current height of the `Player` when getting. + * - Nothing when setting + */ + height(value) { + return this.dimension('height', value); + } + + /** + * A getter/setter for the `Player`'s width & height. + * + * @param {string} dimension + * This string can be: + * - 'width' + * - 'height' + * + * @param {number|string} [value] + * Value for dimension specified in the first argument. + * + * @return {number} + * The dimension arguments value when getting (width/height). + */ + dimension(dimension, value) { + const privDimension = dimension + '_'; + if (value === undefined) { + return this[privDimension] || 0; + } + if (value === '' || value === 'auto') { + // If an empty string is given, reset the dimension to be automatic + this[privDimension] = undefined; + this.updateStyleEl_(); + return; + } + const parsedVal = parseFloat(value); + if (isNaN(parsedVal)) { + log.error(`Improper value "${value}" supplied for for ${dimension}`); + return; + } + this[privDimension] = parsedVal; + this.updateStyleEl_(); + } + + /** + * A getter/setter/toggler for the vjs-fluid `className` on the `Player`. + * + * Turning this on will turn off fill mode. + * + * @param {boolean} [bool] + * - A value of true adds the class. + * - A value of false removes the class. + * - No value will be a getter. + * + * @return {boolean|undefined} + * - The value of fluid when getting. + * - `undefined` when setting. + */ + fluid(bool) { + if (bool === undefined) { + return !!this.fluid_; + } + this.fluid_ = !!bool; + if (isEvented(this)) { + this.off(['playerreset', 'resize'], this.boundUpdateStyleEl_); + } + if (bool) { + this.addClass('vjs-fluid'); + this.fill(false); + addEventedCallback(this, () => { + this.on(['playerreset', 'resize'], this.boundUpdateStyleEl_); + }); + } else { + this.removeClass('vjs-fluid'); + } + this.updateStyleEl_(); + } + + /** + * A getter/setter/toggler for the vjs-fill `className` on the `Player`. + * + * Turning this on will turn off fluid mode. + * + * @param {boolean} [bool] + * - A value of true adds the class. + * - A value of false removes the class. + * - No value will be a getter. + * + * @return {boolean|undefined} + * - The value of fluid when getting. + * - `undefined` when setting. + */ + fill(bool) { + if (bool === undefined) { + return !!this.fill_; + } + this.fill_ = !!bool; + if (bool) { + this.addClass('vjs-fill'); + this.fluid(false); + } else { + this.removeClass('vjs-fill'); + } + } + + /** + * Get/Set the aspect ratio + * + * @param {string} [ratio] + * Aspect ratio for player + * + * @return {string|undefined} + * returns the current aspect ratio when getting + */ + + /** + * A getter/setter for the `Player`'s aspect ratio. + * + * @param {string} [ratio] + * The value to set the `Player`'s aspect ratio to. + * + * @return {string|undefined} + * - The current aspect ratio of the `Player` when getting. + * - undefined when setting + */ + aspectRatio(ratio) { + if (ratio === undefined) { + return this.aspectRatio_; + } + + // Check for width:height format + if (!/^\d+\:\d+$/.test(ratio)) { + throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.'); + } + this.aspectRatio_ = ratio; + + // We're assuming if you set an aspect ratio you want fluid mode, + // because in fixed mode you could calculate width and height yourself. + this.fluid(true); + this.updateStyleEl_(); + } + + /** + * Update styles of the `Player` element (height, width and aspect ratio). + * + * @private + * @listens Tech#loadedmetadata + */ + updateStyleEl_() { + if (window.VIDEOJS_NO_DYNAMIC_STYLE === true) { + const width = typeof this.width_ === 'number' ? this.width_ : this.options_.width; + const height = typeof this.height_ === 'number' ? this.height_ : this.options_.height; + const techEl = this.tech_ && this.tech_.el(); + if (techEl) { + if (width >= 0) { + techEl.width = width; + } + if (height >= 0) { + techEl.height = height; + } + } + return; + } + let width; + let height; + let aspectRatio; + let idClass; + + // The aspect ratio is either used directly or to calculate width and height. + if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') { + // Use any aspectRatio that's been specifically set + aspectRatio = this.aspectRatio_; + } else if (this.videoWidth() > 0) { + // Otherwise try to get the aspect ratio from the video metadata + aspectRatio = this.videoWidth() + ':' + this.videoHeight(); + } else { + // Or use a default. The video element's is 2:1, but 16:9 is more common. + aspectRatio = '16:9'; + } + + // Get the ratio as a decimal we can use to calculate dimensions + const ratioParts = aspectRatio.split(':'); + const ratioMultiplier = ratioParts[1] / ratioParts[0]; + if (this.width_ !== undefined) { + // Use any width that's been specifically set + width = this.width_; + } else if (this.height_ !== undefined) { + // Or calculate the width from the aspect ratio if a height has been set + width = this.height_ / ratioMultiplier; + } else { + // Or use the video's metadata, or use the video el's default of 300 + width = this.videoWidth() || 300; + } + if (this.height_ !== undefined) { + // Use any height that's been specifically set + height = this.height_; + } else { + // Otherwise calculate the height from the ratio and the width + height = width * ratioMultiplier; + } + + // Ensure the CSS class is valid by starting with an alpha character + if (/^[^a-zA-Z]/.test(this.id())) { + idClass = 'dimensions-' + this.id(); + } else { + idClass = this.id() + '-dimensions'; + } + + // Ensure the right class is still on the player for the style element + this.addClass(idClass); + setTextContent(this.styleEl_, ` + .${idClass} { + width: ${width}px; + height: ${height}px; + } + + .${idClass}.vjs-fluid:not(.vjs-audio-only-mode) { + padding-top: ${ratioMultiplier * 100}%; + } + `); + } + + /** + * Load/Create an instance of playback {@link Tech} including element + * and API methods. Then append the `Tech` element in `Player` as a child. + * + * @param {string} techName + * name of the playback technology + * + * @param {string} source + * video source + * + * @private + */ + loadTech_(techName, source) { + // Pause and remove current playback technology + if (this.tech_) { + this.unloadTech_(); + } + const titleTechName = toTitleCase(techName); + const camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1); + + // get rid of the HTML5 video tag as soon as we are using another tech + if (titleTechName !== 'Html5' && this.tag) { + Tech.getTech('Html5').disposeMediaElement(this.tag); + this.tag.player = null; + this.tag = null; + } + this.techName_ = titleTechName; + + // Turn off API access because we're loading a new tech that might load asynchronously + this.isReady_ = false; + let autoplay = this.autoplay(); + + // if autoplay is a string (or `true` with normalizeAutoplay: true) we pass false to the tech + // because the player is going to handle autoplay on `loadstart` + if (typeof this.autoplay() === 'string' || this.autoplay() === true && this.options_.normalizeAutoplay) { + autoplay = false; + } + + // Grab tech-specific options from player options and add source and parent element to use. + const techOptions = { + source, + autoplay, + 'nativeControlsForTouch': this.options_.nativeControlsForTouch, + 'playerId': this.id(), + 'techId': `${this.id()}_${camelTechName}_api`, + 'playsinline': this.options_.playsinline, + 'preload': this.options_.preload, + 'loop': this.options_.loop, + 'disablePictureInPicture': this.options_.disablePictureInPicture, + 'muted': this.options_.muted, + 'poster': this.poster(), + 'language': this.language(), + 'playerElIngest': this.playerElIngest_ || false, + 'vtt.js': this.options_['vtt.js'], + 'canOverridePoster': !!this.options_.techCanOverridePoster, + 'enableSourceset': this.options_.enableSourceset + }; + ALL.names.forEach(name => { + const props = ALL[name]; + techOptions[props.getterName] = this[props.privateName]; + }); + Object.assign(techOptions, this.options_[titleTechName]); + Object.assign(techOptions, this.options_[camelTechName]); + Object.assign(techOptions, this.options_[techName.toLowerCase()]); + if (this.tag) { + techOptions.tag = this.tag; + } + if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) { + techOptions.startTime = this.cache_.currentTime; + } + + // Initialize tech instance + const TechClass = Tech.getTech(techName); + if (!TechClass) { + throw new Error(`No Tech named '${titleTechName}' exists! '${titleTechName}' should be registered using videojs.registerTech()'`); + } + this.tech_ = new TechClass(techOptions); + + // player.triggerReady is always async, so don't need this to be async + this.tech_.ready(bind_(this, this.handleTechReady_), true); + textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_); + + // Listen to all HTML5-defined events and trigger them on the player + TECH_EVENTS_RETRIGGER.forEach(event => { + this.on(this.tech_, event, e => this[`handleTech${toTitleCase(event)}_`](e)); + }); + Object.keys(TECH_EVENTS_QUEUE).forEach(event => { + this.on(this.tech_, event, eventObj => { + if (this.tech_.playbackRate() === 0 && this.tech_.seeking()) { + this.queuedCallbacks_.push({ + callback: this[`handleTech${TECH_EVENTS_QUEUE[event]}_`].bind(this), + event: eventObj + }); + return; + } + this[`handleTech${TECH_EVENTS_QUEUE[event]}_`](eventObj); + }); + }); + this.on(this.tech_, 'loadstart', e => this.handleTechLoadStart_(e)); + this.on(this.tech_, 'sourceset', e => this.handleTechSourceset_(e)); + this.on(this.tech_, 'waiting', e => this.handleTechWaiting_(e)); + this.on(this.tech_, 'ended', e => this.handleTechEnded_(e)); + this.on(this.tech_, 'seeking', e => this.handleTechSeeking_(e)); + this.on(this.tech_, 'play', e => this.handleTechPlay_(e)); + this.on(this.tech_, 'pause', e => this.handleTechPause_(e)); + this.on(this.tech_, 'durationchange', e => this.handleTechDurationChange_(e)); + this.on(this.tech_, 'fullscreenchange', (e, data) => this.handleTechFullscreenChange_(e, data)); + this.on(this.tech_, 'fullscreenerror', (e, err) => this.handleTechFullscreenError_(e, err)); + this.on(this.tech_, 'enterpictureinpicture', e => this.handleTechEnterPictureInPicture_(e)); + this.on(this.tech_, 'leavepictureinpicture', e => this.handleTechLeavePictureInPicture_(e)); + this.on(this.tech_, 'error', e => this.handleTechError_(e)); + this.on(this.tech_, 'posterchange', e => this.handleTechPosterChange_(e)); + this.on(this.tech_, 'textdata', e => this.handleTechTextData_(e)); + this.on(this.tech_, 'ratechange', e => this.handleTechRateChange_(e)); + this.on(this.tech_, 'loadedmetadata', this.boundUpdateStyleEl_); + this.usingNativeControls(this.techGet_('controls')); + if (this.controls() && !this.usingNativeControls()) { + this.addTechControlsListeners_(); + } + + // Add the tech element in the DOM if it was not already there + // Make sure to not insert the original video element if using Html5 + if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) { + prependTo(this.tech_.el(), this.el()); + } + + // Get rid of the original video tag reference after the first tech is loaded + if (this.tag) { + this.tag.player = null; + this.tag = null; + } + } + + /** + * Unload and dispose of the current playback {@link Tech}. + * + * @private + */ + unloadTech_() { + // Save the current text tracks so that we can reuse the same text tracks with the next tech + ALL.names.forEach(name => { + const props = ALL[name]; + this[props.privateName] = this[props.getterName](); + }); + this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_); + this.isReady_ = false; + this.tech_.dispose(); + this.tech_ = false; + if (this.isPosterFromTech_) { + this.poster_ = ''; + this.trigger('posterchange'); + } + this.isPosterFromTech_ = false; + } + + /** + * Return a reference to the current {@link Tech}. + * It will print a warning by default about the danger of using the tech directly + * but any argument that is passed in will silence the warning. + * + * @param {*} [safety] + * Anything passed in to silence the warning + * + * @return {Tech} + * The Tech + */ + tech(safety) { + if (safety === undefined) { + log.warn('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'); + } + return this.tech_; + } + + /** + * An object that contains Video.js version. + * + * @typedef {Object} PlayerVersion + * + * @property {string} 'video.js' - Video.js version + */ + + /** + * Returns an object with Video.js version. + * + * @return {PlayerVersion} + * An object with Video.js version. + */ + version() { + return { + 'video.js': version + }; + } + + /** + * Set up click and touch listeners for the playback element + * + * - On desktops: a click on the video itself will toggle playback + * - On mobile devices: a click on the video toggles controls + * which is done by toggling the user state between active and + * inactive + * - A tap can signal that a user has become active or has become inactive + * e.g. a quick tap on an iPhone movie should reveal the controls. Another + * quick tap should hide them again (signaling the user is in an inactive + * viewing state) + * - In addition to this, we still want the user to be considered inactive after + * a few seconds of inactivity. + * + * > Note: the only part of iOS interaction we can't mimic with this setup + * is a touch and hold on the video element counting as activity in order to + * keep the controls showing, but that shouldn't be an issue. A touch and hold + * on any controls will still keep the user active + * + * @private + */ + addTechControlsListeners_() { + // Make sure to remove all the previous listeners in case we are called multiple times. + this.removeTechControlsListeners_(); + this.on(this.tech_, 'click', this.boundHandleTechClick_); + this.on(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_); + + // If the controls were hidden we don't want that to change without a tap event + // so we'll check if the controls were already showing before reporting user + // activity + this.on(this.tech_, 'touchstart', this.boundHandleTechTouchStart_); + this.on(this.tech_, 'touchmove', this.boundHandleTechTouchMove_); + this.on(this.tech_, 'touchend', this.boundHandleTechTouchEnd_); + + // The tap listener needs to come after the touchend listener because the tap + // listener cancels out any reportedUserActivity when setting userActive(false) + this.on(this.tech_, 'tap', this.boundHandleTechTap_); + } + + /** + * Remove the listeners used for click and tap controls. This is needed for + * toggling to controls disabled, where a tap/touch should do nothing. + * + * @private + */ + removeTechControlsListeners_() { + // We don't want to just use `this.off()` because there might be other needed + // listeners added by techs that extend this. + this.off(this.tech_, 'tap', this.boundHandleTechTap_); + this.off(this.tech_, 'touchstart', this.boundHandleTechTouchStart_); + this.off(this.tech_, 'touchmove', this.boundHandleTechTouchMove_); + this.off(this.tech_, 'touchend', this.boundHandleTechTouchEnd_); + this.off(this.tech_, 'click', this.boundHandleTechClick_); + this.off(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_); + } + + /** + * Player waits for the tech to be ready + * + * @private + */ + handleTechReady_() { + this.triggerReady(); + + // Keep the same volume as before + if (this.cache_.volume) { + this.techCall_('setVolume', this.cache_.volume); + } + + // Look if the tech found a higher resolution poster while loading + this.handleTechPosterChange_(); + + // Update the duration if available + this.handleTechDurationChange_(); + } + + /** + * Retrigger the `loadstart` event that was triggered by the {@link Tech}. + * + * @fires Player#loadstart + * @listens Tech#loadstart + * @private + */ + handleTechLoadStart_() { + // TODO: Update to use `emptied` event instead. See #1277. + + this.removeClass('vjs-ended', 'vjs-seeking'); + + // reset the error state + this.error(null); + + // Update the duration + this.handleTechDurationChange_(); + if (!this.paused()) { + /** + * Fired when the user agent begins looking for media data + * + * @event Player#loadstart + * @type {Event} + */ + this.trigger('loadstart'); + } else { + // reset the hasStarted state + this.hasStarted(false); + this.trigger('loadstart'); + } + + // autoplay happens after loadstart for the browser, + // so we mimic that behavior + this.manualAutoplay_(this.autoplay() === true && this.options_.normalizeAutoplay ? 'play' : this.autoplay()); + } + + /** + * Handle autoplay string values, rather than the typical boolean + * values that should be handled by the tech. Note that this is not + * part of any specification. Valid values and what they do can be + * found on the autoplay getter at Player#autoplay() + */ + manualAutoplay_(type) { + if (!this.tech_ || typeof type !== 'string') { + return; + } + + // Save original muted() value, set muted to true, and attempt to play(). + // On promise rejection, restore muted from saved value + const resolveMuted = () => { + const previouslyMuted = this.muted(); + this.muted(true); + const restoreMuted = () => { + this.muted(previouslyMuted); + }; + + // restore muted on play terminatation + this.playTerminatedQueue_.push(restoreMuted); + const mutedPromise = this.play(); + if (!isPromise(mutedPromise)) { + return; + } + return mutedPromise.catch(err => { + restoreMuted(); + throw new Error(`Rejection at manualAutoplay. Restoring muted value. ${err ? err : ''}`); + }); + }; + let promise; + + // if muted defaults to true + // the only thing we can do is call play + if (type === 'any' && !this.muted()) { + promise = this.play(); + if (isPromise(promise)) { + promise = promise.catch(resolveMuted); + } + } else if (type === 'muted' && !this.muted()) { + promise = resolveMuted(); + } else { + promise = this.play(); + } + if (!isPromise(promise)) { + return; + } + return promise.then(() => { + this.trigger({ + type: 'autoplay-success', + autoplay: type + }); + }).catch(() => { + this.trigger({ + type: 'autoplay-failure', + autoplay: type + }); + }); + } + + /** + * Update the internal source caches so that we return the correct source from + * `src()`, `currentSource()`, and `currentSources()`. + * + * > Note: `currentSources` will not be updated if the source that is passed in exists + * in the current `currentSources` cache. + * + * + * @param {Tech~SourceObject} srcObj + * A string or object source to update our caches to. + */ + updateSourceCaches_(srcObj = '') { + let src = srcObj; + let type = ''; + if (typeof src !== 'string') { + src = srcObj.src; + type = srcObj.type; + } + + // make sure all the caches are set to default values + // to prevent null checking + this.cache_.source = this.cache_.source || {}; + this.cache_.sources = this.cache_.sources || []; + + // try to get the type of the src that was passed in + if (src && !type) { + type = findMimetype(this, src); + } + + // update `currentSource` cache always + this.cache_.source = merge({}, srcObj, { + src, + type + }); + const matchingSources = this.cache_.sources.filter(s => s.src && s.src === src); + const sourceElSources = []; + const sourceEls = this.$$('source'); + const matchingSourceEls = []; + for (let i = 0; i < sourceEls.length; i++) { + const sourceObj = getAttributes(sourceEls[i]); + sourceElSources.push(sourceObj); + if (sourceObj.src && sourceObj.src === src) { + matchingSourceEls.push(sourceObj.src); + } + } + + // if we have matching source els but not matching sources + // the current source cache is not up to date + if (matchingSourceEls.length && !matchingSources.length) { + this.cache_.sources = sourceElSources; + // if we don't have matching source or source els set the + // sources cache to the `currentSource` cache + } else if (!matchingSources.length) { + this.cache_.sources = [this.cache_.source]; + } + + // update the tech `src` cache + this.cache_.src = src; + } + + /** + * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech} + * causing the media element to reload. + * + * It will fire for the initial source and each subsequent source. + * This event is a custom event from Video.js and is triggered by the {@link Tech}. + * + * The event object for this event contains a `src` property that will contain the source + * that was available when the event was triggered. This is generally only necessary if Video.js + * is switching techs while the source was being changed. + * + * It is also fired when `load` is called on the player (or media element) + * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`} + * says that the resource selection algorithm needs to be aborted and restarted. + * In this case, it is very likely that the `src` property will be set to the + * empty string `""` to indicate we do not know what the source will be but + * that it is changing. + * + * *This event is currently still experimental and may change in minor releases.* + * __To use this, pass `enableSourceset` option to the player.__ + * + * @event Player#sourceset + * @type {Event} + * @prop {string} src + * The source url available when the `sourceset` was triggered. + * It will be an empty string if we cannot know what the source is + * but know that the source will change. + */ + /** + * Retrigger the `sourceset` event that was triggered by the {@link Tech}. + * + * @fires Player#sourceset + * @listens Tech#sourceset + * @private + */ + handleTechSourceset_(event) { + // only update the source cache when the source + // was not updated using the player api + if (!this.changingSrc_) { + let updateSourceCaches = src => this.updateSourceCaches_(src); + const playerSrc = this.currentSource().src; + const eventSrc = event.src; + + // if we have a playerSrc that is not a blob, and a tech src that is a blob + if (playerSrc && !/^blob:/.test(playerSrc) && /^blob:/.test(eventSrc)) { + // if both the tech source and the player source were updated we assume + // something like @videojs/http-streaming did the sourceset and skip updating the source cache. + if (!this.lastSource_ || this.lastSource_.tech !== eventSrc && this.lastSource_.player !== playerSrc) { + updateSourceCaches = () => {}; + } + } + + // update the source to the initial source right away + // in some cases this will be empty string + updateSourceCaches(eventSrc); + + // if the `sourceset` `src` was an empty string + // wait for a `loadstart` to update the cache to `currentSrc`. + // If a sourceset happens before a `loadstart`, we reset the state + if (!event.src) { + this.tech_.any(['sourceset', 'loadstart'], e => { + // if a sourceset happens before a `loadstart` there + // is nothing to do as this `handleTechSourceset_` + // will be called again and this will be handled there. + if (e.type === 'sourceset') { + return; + } + const techSrc = this.techGet_('currentSrc'); + this.lastSource_.tech = techSrc; + this.updateSourceCaches_(techSrc); + }); + } + } + this.lastSource_ = { + player: this.currentSource().src, + tech: event.src + }; + this.trigger({ + src: event.src, + type: 'sourceset' + }); + } + + /** + * Add/remove the vjs-has-started class + * + * + * @param {boolean} request + * - true: adds the class + * - false: remove the class + * + * @return {boolean} + * the boolean value of hasStarted_ + */ + hasStarted(request) { + if (request === undefined) { + // act as getter, if we have no request to change + return this.hasStarted_; + } + if (request === this.hasStarted_) { + return; + } + this.hasStarted_ = request; + if (this.hasStarted_) { + this.addClass('vjs-has-started'); + } else { + this.removeClass('vjs-has-started'); + } + } + + /** + * Fired whenever the media begins or resumes playback + * + * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play} + * @fires Player#play + * @listens Tech#play + * @private + */ + handleTechPlay_() { + this.removeClass('vjs-ended', 'vjs-paused'); + this.addClass('vjs-playing'); + + // hide the poster when the user hits play + this.hasStarted(true); + /** + * Triggered whenever an {@link Tech#play} event happens. Indicates that + * playback has started or resumed. + * + * @event Player#play + * @type {Event} + */ + this.trigger('play'); + } + + /** + * Retrigger the `ratechange` event that was triggered by the {@link Tech}. + * + * If there were any events queued while the playback rate was zero, fire + * those events now. + * + * @private + * @method Player#handleTechRateChange_ + * @fires Player#ratechange + * @listens Tech#ratechange + */ + handleTechRateChange_() { + if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) { + this.queuedCallbacks_.forEach(queued => queued.callback(queued.event)); + this.queuedCallbacks_ = []; + } + this.cache_.lastPlaybackRate = this.tech_.playbackRate(); + /** + * Fires when the playing speed of the audio/video is changed + * + * @event Player#ratechange + * @type {event} + */ + this.trigger('ratechange'); + } + + /** + * Retrigger the `waiting` event that was triggered by the {@link Tech}. + * + * @fires Player#waiting + * @listens Tech#waiting + * @private + */ + handleTechWaiting_() { + this.addClass('vjs-waiting'); + /** + * A readyState change on the DOM element has caused playback to stop. + * + * @event Player#waiting + * @type {Event} + */ + this.trigger('waiting'); + + // Browsers may emit a timeupdate event after a waiting event. In order to prevent + // premature removal of the waiting class, wait for the time to change. + const timeWhenWaiting = this.currentTime(); + const timeUpdateListener = () => { + if (timeWhenWaiting !== this.currentTime()) { + this.removeClass('vjs-waiting'); + this.off('timeupdate', timeUpdateListener); + } + }; + this.on('timeupdate', timeUpdateListener); + } + + /** + * Retrigger the `canplay` event that was triggered by the {@link Tech}. + * > Note: This is not consistent between browsers. See #1351 + * + * @fires Player#canplay + * @listens Tech#canplay + * @private + */ + handleTechCanPlay_() { + this.removeClass('vjs-waiting'); + /** + * The media has a readyState of HAVE_FUTURE_DATA or greater. + * + * @event Player#canplay + * @type {Event} + */ + this.trigger('canplay'); + } + + /** + * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}. + * + * @fires Player#canplaythrough + * @listens Tech#canplaythrough + * @private + */ + handleTechCanPlayThrough_() { + this.removeClass('vjs-waiting'); + /** + * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the + * entire media file can be played without buffering. + * + * @event Player#canplaythrough + * @type {Event} + */ + this.trigger('canplaythrough'); + } + + /** + * Retrigger the `playing` event that was triggered by the {@link Tech}. + * + * @fires Player#playing + * @listens Tech#playing + * @private + */ + handleTechPlaying_() { + this.removeClass('vjs-waiting'); + /** + * The media is no longer blocked from playback, and has started playing. + * + * @event Player#playing + * @type {Event} + */ + this.trigger('playing'); + } + + /** + * Retrigger the `seeking` event that was triggered by the {@link Tech}. + * + * @fires Player#seeking + * @listens Tech#seeking + * @private + */ + handleTechSeeking_() { + this.addClass('vjs-seeking'); + /** + * Fired whenever the player is jumping to a new time + * + * @event Player#seeking + * @type {Event} + */ + this.trigger('seeking'); + } + + /** + * Retrigger the `seeked` event that was triggered by the {@link Tech}. + * + * @fires Player#seeked + * @listens Tech#seeked + * @private + */ + handleTechSeeked_() { + this.removeClass('vjs-seeking', 'vjs-ended'); + /** + * Fired when the player has finished jumping to a new time + * + * @event Player#seeked + * @type {Event} + */ + this.trigger('seeked'); + } + + /** + * Retrigger the `pause` event that was triggered by the {@link Tech}. + * + * @fires Player#pause + * @listens Tech#pause + * @private + */ + handleTechPause_() { + this.removeClass('vjs-playing'); + this.addClass('vjs-paused'); + /** + * Fired whenever the media has been paused + * + * @event Player#pause + * @type {Event} + */ + this.trigger('pause'); + } + + /** + * Retrigger the `ended` event that was triggered by the {@link Tech}. + * + * @fires Player#ended + * @listens Tech#ended + * @private + */ + handleTechEnded_() { + this.addClass('vjs-ended'); + this.removeClass('vjs-waiting'); + if (this.options_.loop) { + this.currentTime(0); + this.play(); + } else if (!this.paused()) { + this.pause(); + } + + /** + * Fired when the end of the media resource is reached (currentTime == duration) + * + * @event Player#ended + * @type {Event} + */ + this.trigger('ended'); + } + + /** + * Fired when the duration of the media resource is first known or changed + * + * @listens Tech#durationchange + * @private + */ + handleTechDurationChange_() { + this.duration(this.techGet_('duration')); + } + + /** + * Handle a click on the media element to play/pause + * + * @param {Event} event + * the event that caused this function to trigger + * + * @listens Tech#click + * @private + */ + handleTechClick_(event) { + // When controls are disabled a click should not toggle playback because + // the click is considered a control + if (!this.controls_) { + return; + } + if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.click === undefined || this.options_.userActions.click !== false) { + if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.click === 'function') { + this.options_.userActions.click.call(this, event); + } else if (this.paused()) { + silencePromise(this.play()); + } else { + this.pause(); + } + } + } + + /** + * Handle a double-click on the media element to enter/exit fullscreen + * + * @param {Event} event + * the event that caused this function to trigger + * + * @listens Tech#dblclick + * @private + */ + handleTechDoubleClick_(event) { + if (!this.controls_) { + return; + } + + // we do not want to toggle fullscreen state + // when double-clicking inside a control bar or a modal + const inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), el => el.contains(event.target)); + if (!inAllowedEls) { + /* + * options.userActions.doubleClick + * + * If `undefined` or `true`, double-click toggles fullscreen if controls are present + * Set to `false` to disable double-click handling + * Set to a function to substitute an external double-click handler + */ + if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.doubleClick === undefined || this.options_.userActions.doubleClick !== false) { + if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.doubleClick === 'function') { + this.options_.userActions.doubleClick.call(this, event); + } else if (this.isFullscreen()) { + this.exitFullscreen(); + } else { + this.requestFullscreen(); + } + } + } + } + + /** + * Handle a tap on the media element. It will toggle the user + * activity state, which hides and shows the controls. + * + * @listens Tech#tap + * @private + */ + handleTechTap_() { + this.userActive(!this.userActive()); + } + + /** + * Handle touch to start + * + * @listens Tech#touchstart + * @private + */ + handleTechTouchStart_() { + this.userWasActive = this.userActive(); + } + + /** + * Handle touch to move + * + * @listens Tech#touchmove + * @private + */ + handleTechTouchMove_() { + if (this.userWasActive) { + this.reportUserActivity(); + } + } + + /** + * Handle touch to end + * + * @param {Event} event + * the touchend event that triggered + * this function + * + * @listens Tech#touchend + * @private + */ + handleTechTouchEnd_(event) { + // Stop the mouse events from also happening + if (event.cancelable) { + event.preventDefault(); + } + } + + /** + * @private + */ + toggleFullscreenClass_() { + if (this.isFullscreen()) { + this.addClass('vjs-fullscreen'); + } else { + this.removeClass('vjs-fullscreen'); + } + } + + /** + * when the document fschange event triggers it calls this + */ + documentFullscreenChange_(e) { + const targetPlayer = e.target.player; + + // if another player was fullscreen + // do a null check for targetPlayer because older firefox's would put document as e.target + if (targetPlayer && targetPlayer !== this) { + return; + } + const el = this.el(); + let isFs = document[this.fsApi_.fullscreenElement] === el; + if (!isFs && el.matches) { + isFs = el.matches(':' + this.fsApi_.fullscreen); + } + this.isFullscreen(isFs); + } + + /** + * Handle Tech Fullscreen Change + * + * @param {Event} event + * the fullscreenchange event that triggered this function + * + * @param {Object} data + * the data that was sent with the event + * + * @private + * @listens Tech#fullscreenchange + * @fires Player#fullscreenchange + */ + handleTechFullscreenChange_(event, data) { + if (data) { + if (data.nativeIOSFullscreen) { + this.addClass('vjs-ios-native-fs'); + this.tech_.one('webkitendfullscreen', () => { + this.removeClass('vjs-ios-native-fs'); + }); + } + this.isFullscreen(data.isFullscreen); + } + } + handleTechFullscreenError_(event, err) { + this.trigger('fullscreenerror', err); + } + + /** + * @private + */ + togglePictureInPictureClass_() { + if (this.isInPictureInPicture()) { + this.addClass('vjs-picture-in-picture'); + } else { + this.removeClass('vjs-picture-in-picture'); + } + } + + /** + * Handle Tech Enter Picture-in-Picture. + * + * @param {Event} event + * the enterpictureinpicture event that triggered this function + * + * @private + * @listens Tech#enterpictureinpicture + */ + handleTechEnterPictureInPicture_(event) { + this.isInPictureInPicture(true); + } + + /** + * Handle Tech Leave Picture-in-Picture. + * + * @param {Event} event + * the leavepictureinpicture event that triggered this function + * + * @private + * @listens Tech#leavepictureinpicture + */ + handleTechLeavePictureInPicture_(event) { + this.isInPictureInPicture(false); + } + + /** + * Fires when an error occurred during the loading of an audio/video. + * + * @private + * @listens Tech#error + */ + handleTechError_() { + const error = this.tech_.error(); + if (error) { + this.error(error); + } + } + + /** + * Retrigger the `textdata` event that was triggered by the {@link Tech}. + * + * @fires Player#textdata + * @listens Tech#textdata + * @private + */ + handleTechTextData_() { + let data = null; + if (arguments.length > 1) { + data = arguments[1]; + } + + /** + * Fires when we get a textdata event from tech + * + * @event Player#textdata + * @type {Event} + */ + this.trigger('textdata', data); + } + + /** + * Get object for cached values. + * + * @return {Object} + * get the current object cache + */ + getCache() { + return this.cache_; + } + + /** + * Resets the internal cache object. + * + * Using this function outside the player constructor or reset method may + * have unintended side-effects. + * + * @private + */ + resetCache_() { + this.cache_ = { + // Right now, the currentTime is not _really_ cached because it is always + // retrieved from the tech (see: currentTime). However, for completeness, + // we set it to zero here to ensure that if we do start actually caching + // it, we reset it along with everything else. + currentTime: 0, + initTime: 0, + inactivityTimeout: this.options_.inactivityTimeout, + duration: NaN, + lastVolume: 1, + lastPlaybackRate: this.defaultPlaybackRate(), + media: null, + src: '', + source: {}, + sources: [], + playbackRates: [], + volume: 1 + }; + } + + /** + * Pass values to the playback tech + * + * @param {string} [method] + * the method to call + * + * @param {Object} [arg] + * the argument to pass + * + * @private + */ + techCall_(method, arg) { + // If it's not ready yet, call method when it is + + this.ready(function () { + if (method in allowedSetters) { + return set(this.middleware_, this.tech_, method, arg); + } else if (method in allowedMediators) { + return mediate(this.middleware_, this.tech_, method, arg); + } + try { + if (this.tech_) { + this.tech_[method](arg); + } + } catch (e) { + log(e); + throw e; + } + }, true); + } + + /** + * Mediate attempt to call playback tech method + * and return the value of the method called. + * + * @param {string} method + * Tech method + * + * @return {*} + * Value returned by the tech method called, undefined if tech + * is not ready or tech method is not present + * + * @private + */ + techGet_(method) { + if (!this.tech_ || !this.tech_.isReady_) { + return; + } + if (method in allowedGetters) { + return get(this.middleware_, this.tech_, method); + } else if (method in allowedMediators) { + return mediate(this.middleware_, this.tech_, method); + } + + // Log error when playback tech object is present but method + // is undefined or unavailable + try { + return this.tech_[method](); + } catch (e) { + // When building additional tech libs, an expected method may not be defined yet + if (this.tech_[method] === undefined) { + log(`Video.js: ${method} method not defined for ${this.techName_} playback technology.`, e); + throw e; + } + + // When a method isn't available on the object it throws a TypeError + if (e.name === 'TypeError') { + log(`Video.js: ${method} unavailable on ${this.techName_} playback technology element.`, e); + this.tech_.isReady_ = false; + throw e; + } + + // If error unknown, just log and throw + log(e); + throw e; + } + } + + /** + * Attempt to begin playback at the first opportunity. + * + * @return {Promise|undefined} + * Returns a promise if the browser supports Promises (or one + * was passed in as an option). This promise will be resolved on + * the return value of play. If this is undefined it will fulfill the + * promise chain otherwise the promise chain will be fulfilled when + * the promise from play is fulfilled. + */ + play() { + return new Promise(resolve => { + this.play_(resolve); + }); + } + + /** + * The actual logic for play, takes a callback that will be resolved on the + * return value of play. This allows us to resolve to the play promise if there + * is one on modern browsers. + * + * @private + * @param {Function} [callback] + * The callback that should be called when the techs play is actually called + */ + play_(callback = silencePromise) { + this.playCallbacks_.push(callback); + const isSrcReady = Boolean(!this.changingSrc_ && (this.src() || this.currentSrc())); + const isSafariOrIOS = Boolean(IS_ANY_SAFARI || IS_IOS); + + // treat calls to play_ somewhat like the `one` event function + if (this.waitToPlay_) { + this.off(['ready', 'loadstart'], this.waitToPlay_); + this.waitToPlay_ = null; + } + + // if the player/tech is not ready or the src itself is not ready + // queue up a call to play on `ready` or `loadstart` + if (!this.isReady_ || !isSrcReady) { + this.waitToPlay_ = e => { + this.play_(); + }; + this.one(['ready', 'loadstart'], this.waitToPlay_); + + // if we are in Safari, there is a high chance that loadstart will trigger after the gesture timeperiod + // in that case, we need to prime the video element by calling load so it'll be ready in time + if (!isSrcReady && isSafariOrIOS) { + this.load(); + } + return; + } + + // If the player/tech is ready and we have a source, we can attempt playback. + const val = this.techGet_('play'); + + // For native playback, reset the progress bar if we get a play call from a replay. + const isNativeReplay = isSafariOrIOS && this.hasClass('vjs-ended'); + if (isNativeReplay) { + this.resetProgressBar_(); + } + // play was terminated if the returned value is null + if (val === null) { + this.runPlayTerminatedQueue_(); + } else { + this.runPlayCallbacks_(val); + } + } + + /** + * These functions will be run when if play is terminated. If play + * runPlayCallbacks_ is run these function will not be run. This allows us + * to differentiate between a terminated play and an actual call to play. + */ + runPlayTerminatedQueue_() { + const queue = this.playTerminatedQueue_.slice(0); + this.playTerminatedQueue_ = []; + queue.forEach(function (q) { + q(); + }); + } + + /** + * When a callback to play is delayed we have to run these + * callbacks when play is actually called on the tech. This function + * runs the callbacks that were delayed and accepts the return value + * from the tech. + * + * @param {undefined|Promise} val + * The return value from the tech. + */ + runPlayCallbacks_(val) { + const callbacks = this.playCallbacks_.slice(0); + this.playCallbacks_ = []; + // clear play terminatedQueue since we finished a real play + this.playTerminatedQueue_ = []; + callbacks.forEach(function (cb) { + cb(val); + }); + } + + /** + * Pause the video playback + */ + pause() { + this.techCall_('pause'); + } + + /** + * Check if the player is paused or has yet to play + * + * @return {boolean} + * - false: if the media is currently playing + * - true: if media is not currently playing + */ + paused() { + // The initial state of paused should be true (in Safari it's actually false) + return this.techGet_('paused') === false ? false : true; + } + + /** + * Get a TimeRange object representing the current ranges of time that the user + * has played. + * + * @return { import('./utils/time').TimeRange } + * A time range object that represents all the increments of time that have + * been played. + */ + played() { + return this.techGet_('played') || createTimeRanges(0, 0); + } + + /** + * Sets or returns whether or not the user is "scrubbing". Scrubbing is + * when the user has clicked the progress bar handle and is + * dragging it along the progress bar. + * + * @param {boolean} [isScrubbing] + * whether the user is or is not scrubbing + * + * @return {boolean|undefined} + * - The value of scrubbing when getting + * - Nothing when setting + */ + scrubbing(isScrubbing) { + if (typeof isScrubbing === 'undefined') { + return this.scrubbing_; + } + this.scrubbing_ = !!isScrubbing; + this.techCall_('setScrubbing', this.scrubbing_); + if (isScrubbing) { + this.addClass('vjs-scrubbing'); + } else { + this.removeClass('vjs-scrubbing'); + } + } + + /** + * Get or set the current time (in seconds) + * + * @param {number|string} [seconds] + * The time to seek to in seconds + * + * @return {number|undefined} + * - the current time in seconds when getting + * - Nothing when setting + */ + currentTime(seconds) { + if (seconds === undefined) { + // cache last currentTime and return. default to 0 seconds + // + // Caching the currentTime is meant to prevent a massive amount of reads on the tech's + // currentTime when scrubbing, but may not provide much performance benefit after all. + // Should be tested. Also something has to read the actual current time or the cache will + // never get updated. + this.cache_.currentTime = this.techGet_('currentTime') || 0; + return this.cache_.currentTime; + } + if (seconds < 0) { + seconds = 0; + } + if (!this.isReady_ || this.changingSrc_ || !this.tech_ || !this.tech_.isReady_) { + this.cache_.initTime = seconds; + this.off('canplay', this.boundApplyInitTime_); + this.one('canplay', this.boundApplyInitTime_); + return; + } + this.techCall_('setCurrentTime', seconds); + this.cache_.initTime = 0; + if (isFinite(seconds)) { + this.cache_.currentTime = Number(seconds); + } + } + + /** + * Apply the value of initTime stored in cache as currentTime. + * + * @private + */ + applyInitTime_() { + this.currentTime(this.cache_.initTime); + } + + /** + * Normally gets the length in time of the video in seconds; + * in all but the rarest use cases an argument will NOT be passed to the method + * + * > **NOTE**: The video must have started loading before the duration can be + * known, and depending on preload behaviour may not be known until the video starts + * playing. + * + * @fires Player#durationchange + * + * @param {number} [seconds] + * The duration of the video to set in seconds + * + * @return {number|undefined} + * - The duration of the video in seconds when getting + * - Nothing when setting + */ + duration(seconds) { + if (seconds === undefined) { + // return NaN if the duration is not known + return this.cache_.duration !== undefined ? this.cache_.duration : NaN; + } + seconds = parseFloat(seconds); + + // Standardize on Infinity for signaling video is live + if (seconds < 0) { + seconds = Infinity; + } + if (seconds !== this.cache_.duration) { + // Cache the last set value for optimized scrubbing + this.cache_.duration = seconds; + if (seconds === Infinity) { + this.addClass('vjs-live'); + } else { + this.removeClass('vjs-live'); + } + if (!isNaN(seconds)) { + // Do not fire durationchange unless the duration value is known. + // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm} + + /** + * @event Player#durationchange + * @type {Event} + */ + this.trigger('durationchange'); + } + } + } + + /** + * Calculates how much time is left in the video. Not part + * of the native video API. + * + * @return {number} + * The time remaining in seconds + */ + remainingTime() { + return this.duration() - this.currentTime(); + } + + /** + * A remaining time function that is intended to be used when + * the time is to be displayed directly to the user. + * + * @return {number} + * The rounded time remaining in seconds + */ + remainingTimeDisplay() { + return Math.floor(this.duration()) - Math.floor(this.currentTime()); + } + + // + // Kind of like an array of portions of the video that have been downloaded. + + /** + * Get a TimeRange object with an array of the times of the video + * that have been downloaded. If you just want the percent of the + * video that's been downloaded, use bufferedPercent. + * + * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered} + * + * @return { import('./utils/time').TimeRange } + * A mock {@link TimeRanges} object (following HTML spec) + */ + buffered() { + let buffered = this.techGet_('buffered'); + if (!buffered || !buffered.length) { + buffered = createTimeRanges(0, 0); + } + return buffered; + } + + /** + * Get the TimeRanges of the media that are currently available + * for seeking to. + * + * @see [Seekable Spec]{@link https://html.spec.whatwg.org/multipage/media.html#dom-media-seekable} + * + * @return { import('./utils/time').TimeRange } + * A mock {@link TimeRanges} object (following HTML spec) + */ + seekable() { + let seekable = this.techGet_('seekable'); + if (!seekable || !seekable.length) { + seekable = createTimeRanges(0, 0); + } + return seekable; + } + + /** + * Returns whether the player is in the "seeking" state. + * + * @return {boolean} True if the player is in the seeking state, false if not. + */ + seeking() { + return this.techGet_('seeking'); + } + + /** + * Returns whether the player is in the "ended" state. + * + * @return {boolean} True if the player is in the ended state, false if not. + */ + ended() { + return this.techGet_('ended'); + } + + /** + * Returns the current state of network activity for the element, from + * the codes in the list below. + * - NETWORK_EMPTY (numeric value 0) + * The element has not yet been initialised. All attributes are in + * their initial states. + * - NETWORK_IDLE (numeric value 1) + * The element's resource selection algorithm is active and has + * selected a resource, but it is not actually using the network at + * this time. + * - NETWORK_LOADING (numeric value 2) + * The user agent is actively trying to download data. + * - NETWORK_NO_SOURCE (numeric value 3) + * The element's resource selection algorithm is active, but it has + * not yet found a resource to use. + * + * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states + * @return {number} the current network activity state + */ + networkState() { + return this.techGet_('networkState'); + } + + /** + * Returns a value that expresses the current state of the element + * with respect to rendering the current playback position, from the + * codes in the list below. + * - HAVE_NOTHING (numeric value 0) + * No information regarding the media resource is available. + * - HAVE_METADATA (numeric value 1) + * Enough of the resource has been obtained that the duration of the + * resource is available. + * - HAVE_CURRENT_DATA (numeric value 2) + * Data for the immediate current playback position is available. + * - HAVE_FUTURE_DATA (numeric value 3) + * Data for the immediate current playback position is available, as + * well as enough data for the user agent to advance the current + * playback position in the direction of playback. + * - HAVE_ENOUGH_DATA (numeric value 4) + * The user agent estimates that enough data is available for + * playback to proceed uninterrupted. + * + * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate + * @return {number} the current playback rendering state + */ + readyState() { + return this.techGet_('readyState'); + } + + /** + * Get the percent (as a decimal) of the video that's been downloaded. + * This method is not a part of the native HTML video API. + * + * @return {number} + * A decimal between 0 and 1 representing the percent + * that is buffered 0 being 0% and 1 being 100% + */ + bufferedPercent() { + return bufferedPercent(this.buffered(), this.duration()); + } + + /** + * Get the ending time of the last buffered time range + * This is used in the progress bar to encapsulate all time ranges. + * + * @return {number} + * The end of the last buffered time range + */ + bufferedEnd() { + const buffered = this.buffered(); + const duration = this.duration(); + let end = buffered.end(buffered.length - 1); + if (end > duration) { + end = duration; + } + return end; + } + + /** + * Get or set the current volume of the media + * + * @param {number} [percentAsDecimal] + * The new volume as a decimal percent: + * - 0 is muted/0%/off + * - 1.0 is 100%/full + * - 0.5 is half volume or 50% + * + * @return {number|undefined} + * The current volume as a percent when getting + */ + volume(percentAsDecimal) { + let vol; + if (percentAsDecimal !== undefined) { + // Force value to between 0 and 1 + vol = Math.max(0, Math.min(1, percentAsDecimal)); + this.cache_.volume = vol; + this.techCall_('setVolume', vol); + if (vol > 0) { + this.lastVolume_(vol); + } + return; + } + + // Default to 1 when returning current volume. + vol = parseFloat(this.techGet_('volume')); + return isNaN(vol) ? 1 : vol; + } + + /** + * Get the current muted state, or turn mute on or off + * + * @param {boolean} [muted] + * - true to mute + * - false to unmute + * + * @return {boolean|undefined} + * - true if mute is on and getting + * - false if mute is off and getting + * - nothing if setting + */ + muted(muted) { + if (muted !== undefined) { + this.techCall_('setMuted', muted); + return; + } + return this.techGet_('muted') || false; + } + + /** + * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted + * indicates the state of muted on initial playback. + * + * ```js + * var myPlayer = videojs('some-player-id'); + * + * myPlayer.src("http://www.example.com/path/to/video.mp4"); + * + * // get, should be false + * console.log(myPlayer.defaultMuted()); + * // set to true + * myPlayer.defaultMuted(true); + * // get should be true + * console.log(myPlayer.defaultMuted()); + * ``` + * + * @param {boolean} [defaultMuted] + * - true to mute + * - false to unmute + * + * @return {boolean|undefined} + * - true if defaultMuted is on and getting + * - false if defaultMuted is off and getting + * - Nothing when setting + */ + defaultMuted(defaultMuted) { + if (defaultMuted !== undefined) { + this.techCall_('setDefaultMuted', defaultMuted); + } + return this.techGet_('defaultMuted') || false; + } + + /** + * Get the last volume, or set it + * + * @param {number} [percentAsDecimal] + * The new last volume as a decimal percent: + * - 0 is muted/0%/off + * - 1.0 is 100%/full + * - 0.5 is half volume or 50% + * + * @return {number|undefined} + * - The current value of lastVolume as a percent when getting + * - Nothing when setting + * + * @private + */ + lastVolume_(percentAsDecimal) { + if (percentAsDecimal !== undefined && percentAsDecimal !== 0) { + this.cache_.lastVolume = percentAsDecimal; + return; + } + return this.cache_.lastVolume; + } + + /** + * Check if current tech can support native fullscreen + * (e.g. with built in controls like iOS) + * + * @return {boolean} + * if native fullscreen is supported + */ + supportsFullScreen() { + return this.techGet_('supportsFullScreen') || false; + } + + /** + * Check if the player is in fullscreen mode or tell the player that it + * is or is not in fullscreen mode. + * + * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official + * property and instead document.fullscreenElement is used. But isFullscreen is + * still a valuable property for internal player workings. + * + * @param {boolean} [isFS] + * Set the players current fullscreen state + * + * @return {boolean|undefined} + * - true if fullscreen is on and getting + * - false if fullscreen is off and getting + * - Nothing when setting + */ + isFullscreen(isFS) { + if (isFS !== undefined) { + const oldValue = this.isFullscreen_; + this.isFullscreen_ = Boolean(isFS); + + // if we changed fullscreen state and we're in prefixed mode, trigger fullscreenchange + // this is the only place where we trigger fullscreenchange events for older browsers + // fullWindow mode is treated as a prefixed event and will get a fullscreenchange event as well + if (this.isFullscreen_ !== oldValue && this.fsApi_.prefixed) { + /** + * @event Player#fullscreenchange + * @type {Event} + */ + this.trigger('fullscreenchange'); + } + this.toggleFullscreenClass_(); + return; + } + return this.isFullscreen_; + } + + /** + * Increase the size of the video to full screen + * In some browsers, full screen is not supported natively, so it enters + * "full window mode", where the video fills the browser window. + * In browsers and devices that support native full screen, sometimes the + * browser's default controls will be shown, and not the Video.js custom skin. + * This includes most mobile devices (iOS, Android) and older versions of + * Safari. + * + * @param {Object} [fullscreenOptions] + * Override the player fullscreen options + * + * @fires Player#fullscreenchange + */ + requestFullscreen(fullscreenOptions) { + if (this.isInPictureInPicture()) { + this.exitPictureInPicture(); + } + const self = this; + return new Promise((resolve, reject) => { + function offHandler() { + self.off('fullscreenerror', errorHandler); + self.off('fullscreenchange', changeHandler); + } + function changeHandler() { + offHandler(); + resolve(); + } + function errorHandler(e, err) { + offHandler(); + reject(err); + } + self.one('fullscreenchange', changeHandler); + self.one('fullscreenerror', errorHandler); + const promise = self.requestFullscreenHelper_(fullscreenOptions); + if (promise) { + promise.then(offHandler, offHandler); + promise.then(resolve, reject); + } + }); + } + requestFullscreenHelper_(fullscreenOptions) { + let fsOptions; + + // Only pass fullscreen options to requestFullscreen in spec-compliant browsers. + // Use defaults or player configured option unless passed directly to this method. + if (!this.fsApi_.prefixed) { + fsOptions = this.options_.fullscreen && this.options_.fullscreen.options || {}; + if (fullscreenOptions !== undefined) { + fsOptions = fullscreenOptions; + } + } + + // This method works as follows: + // 1. if a fullscreen api is available, use it + // 1. call requestFullscreen with potential options + // 2. if we got a promise from above, use it to update isFullscreen() + // 2. otherwise, if the tech supports fullscreen, call `enterFullScreen` on it. + // This is particularly used for iPhone, older iPads, and non-safari browser on iOS. + // 3. otherwise, use "fullWindow" mode + if (this.fsApi_.requestFullscreen) { + const promise = this.el_[this.fsApi_.requestFullscreen](fsOptions); + + // Even on browsers with promise support this may not return a promise + if (promise) { + promise.then(() => this.isFullscreen(true), () => this.isFullscreen(false)); + } + return promise; + } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) { + // we can't take the video.js controls fullscreen but we can go fullscreen + // with native controls + this.techCall_('enterFullScreen'); + } else { + // fullscreen isn't supported so we'll just stretch the video element to + // fill the viewport + this.enterFullWindow(); + } + } + + /** + * Return the video to its normal size after having been in full screen mode + * + * @fires Player#fullscreenchange + */ + exitFullscreen() { + const self = this; + return new Promise((resolve, reject) => { + function offHandler() { + self.off('fullscreenerror', errorHandler); + self.off('fullscreenchange', changeHandler); + } + function changeHandler() { + offHandler(); + resolve(); + } + function errorHandler(e, err) { + offHandler(); + reject(err); + } + self.one('fullscreenchange', changeHandler); + self.one('fullscreenerror', errorHandler); + const promise = self.exitFullscreenHelper_(); + if (promise) { + promise.then(offHandler, offHandler); + // map the promise to our resolve/reject methods + promise.then(resolve, reject); + } + }); + } + exitFullscreenHelper_() { + if (this.fsApi_.requestFullscreen) { + const promise = document[this.fsApi_.exitFullscreen](); + + // Even on browsers with promise support this may not return a promise + if (promise) { + // we're splitting the promise here, so, we want to catch the + // potential error so that this chain doesn't have unhandled errors + silencePromise(promise.then(() => this.isFullscreen(false))); + } + return promise; + } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) { + this.techCall_('exitFullScreen'); + } else { + this.exitFullWindow(); + } + } + + /** + * When fullscreen isn't supported we can stretch the + * video container to as wide as the browser will let us. + * + * @fires Player#enterFullWindow + */ + enterFullWindow() { + this.isFullscreen(true); + this.isFullWindow = true; + + // Storing original doc overflow value to return to when fullscreen is off + this.docOrigOverflow = document.documentElement.style.overflow; + + // Add listener for esc key to exit fullscreen + on(document, 'keydown', this.boundFullWindowOnEscKey_); + + // Hide any scroll bars + document.documentElement.style.overflow = 'hidden'; + + // Apply fullscreen styles + addClass(document.body, 'vjs-full-window'); + + /** + * @event Player#enterFullWindow + * @type {Event} + */ + this.trigger('enterFullWindow'); + } + + /** + * Check for call to either exit full window or + * full screen on ESC key + * + * @param {string} event + * Event to check for key press + */ + fullWindowOnEscKey(event) { + if (keycode.isEventKey(event, 'Esc')) { + if (this.isFullscreen() === true) { + if (!this.isFullWindow) { + this.exitFullscreen(); + } else { + this.exitFullWindow(); + } + } + } + } + + /** + * Exit full window + * + * @fires Player#exitFullWindow + */ + exitFullWindow() { + this.isFullscreen(false); + this.isFullWindow = false; + off(document, 'keydown', this.boundFullWindowOnEscKey_); + + // Unhide scroll bars. + document.documentElement.style.overflow = this.docOrigOverflow; + + // Remove fullscreen styles + removeClass(document.body, 'vjs-full-window'); + + // Resize the box, controller, and poster to original sizes + // this.positionAll(); + /** + * @event Player#exitFullWindow + * @type {Event} + */ + this.trigger('exitFullWindow'); + } + + /** + * Get or set disable Picture-in-Picture mode. + * + * @param {boolean} [value] + * - true will disable Picture-in-Picture mode + * - false will enable Picture-in-Picture mode + */ + disablePictureInPicture(value) { + if (value === undefined) { + return this.techGet_('disablePictureInPicture'); + } + this.techCall_('setDisablePictureInPicture', value); + this.options_.disablePictureInPicture = value; + this.trigger('disablepictureinpicturechanged'); + } + + /** + * Check if the player is in Picture-in-Picture mode or tell the player that it + * is or is not in Picture-in-Picture mode. + * + * @param {boolean} [isPiP] + * Set the players current Picture-in-Picture state + * + * @return {boolean|undefined} + * - true if Picture-in-Picture is on and getting + * - false if Picture-in-Picture is off and getting + * - nothing if setting + */ + isInPictureInPicture(isPiP) { + if (isPiP !== undefined) { + this.isInPictureInPicture_ = !!isPiP; + this.togglePictureInPictureClass_(); + return; + } + return !!this.isInPictureInPicture_; + } + + /** + * Create a floating video window always on top of other windows so that users may + * continue consuming media while they interact with other content sites, or + * applications on their device. + * + * This can use document picture-in-picture or element picture in picture + * + * Set `enableDocumentPictureInPicture` to `true` to use docPiP on a supported browser + * Else set `disablePictureInPicture` to `false` to disable elPiP on a supported browser + * + * + * @see [Spec]{@link https://w3c.github.io/picture-in-picture/} + * @see [Spec]{@link https://wicg.github.io/document-picture-in-picture/} + * + * @fires Player#enterpictureinpicture + * + * @return {Promise} + * A promise with a Picture-in-Picture window. + */ + requestPictureInPicture() { + if (this.options_.enableDocumentPictureInPicture && window.documentPictureInPicture) { + const pipContainer = document.createElement(this.el().tagName); + pipContainer.classList = this.el().classList; + pipContainer.classList.add('vjs-pip-container'); + if (this.posterImage) { + pipContainer.appendChild(this.posterImage.el().cloneNode(true)); + } + if (this.titleBar) { + pipContainer.appendChild(this.titleBar.el().cloneNode(true)); + } + pipContainer.appendChild(createEl('p', { + className: 'vjs-pip-text' + }, {}, this.localize('Playing in picture-in-picture'))); + return window.documentPictureInPicture.requestWindow({ + // The aspect ratio won't be correct, Chrome bug https://crbug.com/1407629 + width: this.videoWidth(), + height: this.videoHeight() + }).then(pipWindow => { + copyStyleSheetsToWindow(pipWindow); + this.el_.parentNode.insertBefore(pipContainer, this.el_); + pipWindow.document.body.appendChild(this.el_); + pipWindow.document.body.classList.add('vjs-pip-window'); + this.player_.isInPictureInPicture(true); + this.player_.trigger({ + type: 'enterpictureinpicture', + pipWindow + }); + + // Listen for the PiP closing event to move the video back. + pipWindow.addEventListener('pagehide', event => { + const pipVideo = event.target.querySelector('.video-js'); + pipContainer.parentNode.replaceChild(pipVideo, pipContainer); + this.player_.isInPictureInPicture(false); + this.player_.trigger('leavepictureinpicture'); + }); + return pipWindow; + }); + } + if ('pictureInPictureEnabled' in document && this.disablePictureInPicture() === false) { + /** + * This event fires when the player enters picture in picture mode + * + * @event Player#enterpictureinpicture + * @type {Event} + */ + return this.techGet_('requestPictureInPicture'); + } + return Promise.reject('No PiP mode is available'); + } + + /** + * Exit Picture-in-Picture mode. + * + * @see [Spec]{@link https://wicg.github.io/picture-in-picture} + * + * @fires Player#leavepictureinpicture + * + * @return {Promise} + * A promise. + */ + exitPictureInPicture() { + if (window.documentPictureInPicture && window.documentPictureInPicture.window) { + // With documentPictureInPicture, Player#leavepictureinpicture is fired in the pagehide handler + window.documentPictureInPicture.window.close(); + return Promise.resolve(); + } + if ('pictureInPictureEnabled' in document) { + /** + * This event fires when the player leaves picture in picture mode + * + * @event Player#leavepictureinpicture + * @type {Event} + */ + return document.exitPictureInPicture(); + } + } + + /** + * Called when this Player has focus and a key gets pressed down, or when + * any Component of this player receives a key press that it doesn't handle. + * This allows player-wide hotkeys (either as defined below, or optionally + * by an external function). + * + * @param {KeyboardEvent} event + * The `keydown` event that caused this function to be called. + * + * @listens keydown + */ + handleKeyDown(event) { + const { + userActions + } = this.options_; + + // Bail out if hotkeys are not configured. + if (!userActions || !userActions.hotkeys) { + return; + } + + // Function that determines whether or not to exclude an element from + // hotkeys handling. + const excludeElement = el => { + const tagName = el.tagName.toLowerCase(); + + // The first and easiest test is for `contenteditable` elements. + if (el.isContentEditable) { + return true; + } + + // Inputs matching these types will still trigger hotkey handling as + // they are not text inputs. + const allowedInputTypes = ['button', 'checkbox', 'hidden', 'radio', 'reset', 'submit']; + if (tagName === 'input') { + return allowedInputTypes.indexOf(el.type) === -1; + } + + // The final test is by tag name. These tags will be excluded entirely. + const excludedTags = ['textarea']; + return excludedTags.indexOf(tagName) !== -1; + }; + + // Bail out if the user is focused on an interactive form element. + if (excludeElement(this.el_.ownerDocument.activeElement)) { + return; + } + if (typeof userActions.hotkeys === 'function') { + userActions.hotkeys.call(this, event); + } else { + this.handleHotkeys(event); + } + } + + /** + * Called when this Player receives a hotkey keydown event. + * Supported player-wide hotkeys are: + * + * f - toggle fullscreen + * m - toggle mute + * k or Space - toggle play/pause + * + * @param {Event} event + * The `keydown` event that caused this function to be called. + */ + handleHotkeys(event) { + const hotkeys = this.options_.userActions ? this.options_.userActions.hotkeys : {}; + + // set fullscreenKey, muteKey, playPauseKey from `hotkeys`, use defaults if not set + const { + fullscreenKey = keydownEvent => keycode.isEventKey(keydownEvent, 'f'), + muteKey = keydownEvent => keycode.isEventKey(keydownEvent, 'm'), + playPauseKey = keydownEvent => keycode.isEventKey(keydownEvent, 'k') || keycode.isEventKey(keydownEvent, 'Space') + } = hotkeys; + if (fullscreenKey.call(this, event)) { + event.preventDefault(); + event.stopPropagation(); + const FSToggle = Component.getComponent('FullscreenToggle'); + if (document[this.fsApi_.fullscreenEnabled] !== false) { + FSToggle.prototype.handleClick.call(this, event); + } + } else if (muteKey.call(this, event)) { + event.preventDefault(); + event.stopPropagation(); + const MuteToggle = Component.getComponent('MuteToggle'); + MuteToggle.prototype.handleClick.call(this, event); + } else if (playPauseKey.call(this, event)) { + event.preventDefault(); + event.stopPropagation(); + const PlayToggle = Component.getComponent('PlayToggle'); + PlayToggle.prototype.handleClick.call(this, event); + } + } + + /** + * Check whether the player can play a given mimetype + * + * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype + * + * @param {string} type + * The mimetype to check + * + * @return {string} + * 'probably', 'maybe', or '' (empty string) + */ + canPlayType(type) { + let can; + + // Loop through each playback technology in the options order + for (let i = 0, j = this.options_.techOrder; i < j.length; i++) { + const techName = j[i]; + let tech = Tech.getTech(techName); + + // Support old behavior of techs being registered as components. + // Remove once that deprecated behavior is removed. + if (!tech) { + tech = Component.getComponent(techName); + } + + // Check if the current tech is defined before continuing + if (!tech) { + log.error(`The "${techName}" tech is undefined. Skipped browser support check for that tech.`); + continue; + } + + // Check if the browser supports this technology + if (tech.isSupported()) { + can = tech.canPlayType(type); + if (can) { + return can; + } + } + } + return ''; + } + + /** + * Select source based on tech-order or source-order + * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise, + * defaults to tech-order selection + * + * @param {Array} sources + * The sources for a media asset + * + * @return {Object|boolean} + * Object of source and tech order or false + */ + selectSource(sources) { + // Get only the techs specified in `techOrder` that exist and are supported by the + // current platform + const techs = this.options_.techOrder.map(techName => { + return [techName, Tech.getTech(techName)]; + }).filter(([techName, tech]) => { + // Check if the current tech is defined before continuing + if (tech) { + // Check if the browser supports this technology + return tech.isSupported(); + } + log.error(`The "${techName}" tech is undefined. Skipped browser support check for that tech.`); + return false; + }); + + // Iterate over each `innerArray` element once per `outerArray` element and execute + // `tester` with both. If `tester` returns a non-falsy value, exit early and return + // that value. + const findFirstPassingTechSourcePair = function (outerArray, innerArray, tester) { + let found; + outerArray.some(outerChoice => { + return innerArray.some(innerChoice => { + found = tester(outerChoice, innerChoice); + if (found) { + return true; + } + }); + }); + return found; + }; + let foundSourceAndTech; + const flip = fn => (a, b) => fn(b, a); + const finder = ([techName, tech], source) => { + if (tech.canPlaySource(source, this.options_[techName.toLowerCase()])) { + return { + source, + tech: techName + }; + } + }; + + // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources + // to select from them based on their priority. + if (this.options_.sourceOrder) { + // Source-first ordering + foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder)); + } else { + // Tech-first ordering + foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder); + } + return foundSourceAndTech || false; + } + + /** + * Executes source setting and getting logic + * + * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source] + * A SourceObject, an array of SourceObjects, or a string referencing + * a URL to a media source. It is _highly recommended_ that an object + * or array of objects is used here, so that source selection + * algorithms can take the `type` into account. + * + * If not provided, this method acts as a getter. + * @param {boolean} [isRetry] + * Indicates whether this is being called internally as a result of a retry + * + * @return {string|undefined} + * If the `source` argument is missing, returns the current source + * URL. Otherwise, returns nothing/undefined. + */ + handleSrc_(source, isRetry) { + // getter usage + if (typeof source === 'undefined') { + return this.cache_.src || ''; + } + + // Reset retry behavior for new source + if (this.resetRetryOnError_) { + this.resetRetryOnError_(); + } + + // filter out invalid sources and turn our source into + // an array of source objects + const sources = filterSource(source); + + // if a source was passed in then it is invalid because + // it was filtered to a zero length Array. So we have to + // show an error + if (!sources.length) { + this.setTimeout(function () { + this.error({ + code: 4, + message: this.options_.notSupportedMessage + }); + }, 0); + return; + } + + // initial sources + this.changingSrc_ = true; + + // Only update the cached source list if we are not retrying a new source after error, + // since in that case we want to include the failed source(s) in the cache + if (!isRetry) { + this.cache_.sources = sources; + } + this.updateSourceCaches_(sources[0]); + + // middlewareSource is the source after it has been changed by middleware + setSource(this, sources[0], (middlewareSource, mws) => { + this.middleware_ = mws; + + // since sourceSet is async we have to update the cache again after we select a source since + // the source that is selected could be out of order from the cache update above this callback. + if (!isRetry) { + this.cache_.sources = sources; + } + this.updateSourceCaches_(middlewareSource); + const err = this.src_(middlewareSource); + if (err) { + if (sources.length > 1) { + return this.handleSrc_(sources.slice(1)); + } + this.changingSrc_ = false; + + // We need to wrap this in a timeout to give folks a chance to add error event handlers + this.setTimeout(function () { + this.error({ + code: 4, + message: this.options_.notSupportedMessage + }); + }, 0); + + // we could not find an appropriate tech, but let's still notify the delegate that this is it + // this needs a better comment about why this is needed + this.triggerReady(); + return; + } + setTech(mws, this.tech_); + }); + + // Try another available source if this one fails before playback. + if (sources.length > 1) { + const retry = () => { + // Remove the error modal + this.error(null); + this.handleSrc_(sources.slice(1), true); + }; + const stopListeningForErrors = () => { + this.off('error', retry); + }; + this.one('error', retry); + this.one('playing', stopListeningForErrors); + this.resetRetryOnError_ = () => { + this.off('error', retry); + this.off('playing', stopListeningForErrors); + }; + } + } + + /** + * Get or set the video source. + * + * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source] + * A SourceObject, an array of SourceObjects, or a string referencing + * a URL to a media source. It is _highly recommended_ that an object + * or array of objects is used here, so that source selection + * algorithms can take the `type` into account. + * + * If not provided, this method acts as a getter. + * + * @return {string|undefined} + * If the `source` argument is missing, returns the current source + * URL. Otherwise, returns nothing/undefined. + */ + src(source) { + return this.handleSrc_(source, false); + } + + /** + * Set the source object on the tech, returns a boolean that indicates whether + * there is a tech that can play the source or not + * + * @param {Tech~SourceObject} source + * The source object to set on the Tech + * + * @return {boolean} + * - True if there is no Tech to playback this source + * - False otherwise + * + * @private + */ + src_(source) { + const sourceTech = this.selectSource([source]); + if (!sourceTech) { + return true; + } + if (!titleCaseEquals(sourceTech.tech, this.techName_)) { + this.changingSrc_ = true; + // load this technology with the chosen source + this.loadTech_(sourceTech.tech, sourceTech.source); + this.tech_.ready(() => { + this.changingSrc_ = false; + }); + return false; + } + + // wait until the tech is ready to set the source + // and set it synchronously if possible (#2326) + this.ready(function () { + // The setSource tech method was added with source handlers + // so older techs won't support it + // We need to check the direct prototype for the case where subclasses + // of the tech do not support source handlers + if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) { + this.techCall_('setSource', source); + } else { + this.techCall_('src', source.src); + } + this.changingSrc_ = false; + }, true); + return false; + } + + /** + * Begin loading the src data. + */ + load() { + // Workaround to use the load method with the VHS. + // Does not cover the case when the load method is called directly from the mediaElement. + if (this.tech_ && this.tech_.vhs) { + this.src(this.currentSource()); + return; + } + this.techCall_('load'); + } + + /** + * Reset the player. Loads the first tech in the techOrder, + * removes all the text tracks in the existing `tech`, + * and calls `reset` on the `tech`. + */ + reset() { + if (this.paused()) { + this.doReset_(); + } else { + const playPromise = this.play(); + silencePromise(playPromise.then(() => this.doReset_())); + } + } + doReset_() { + if (this.tech_) { + this.tech_.clearTracks('text'); + } + this.removeClass('vjs-playing'); + this.addClass('vjs-paused'); + this.resetCache_(); + this.poster(''); + this.loadTech_(this.options_.techOrder[0], null); + this.techCall_('reset'); + this.resetControlBarUI_(); + this.error(null); + if (this.titleBar) { + this.titleBar.update({ + title: undefined, + description: undefined + }); + } + if (isEvented(this)) { + this.trigger('playerreset'); + } + } + + /** + * Reset Control Bar's UI by calling sub-methods that reset + * all of Control Bar's components + */ + resetControlBarUI_() { + this.resetProgressBar_(); + this.resetPlaybackRate_(); + this.resetVolumeBar_(); + } + + /** + * Reset tech's progress so progress bar is reset in the UI + */ + resetProgressBar_() { + this.currentTime(0); + const { + currentTimeDisplay, + durationDisplay, + progressControl, + remainingTimeDisplay + } = this.controlBar || {}; + const { + seekBar + } = progressControl || {}; + if (currentTimeDisplay) { + currentTimeDisplay.updateContent(); + } + if (durationDisplay) { + durationDisplay.updateContent(); + } + if (remainingTimeDisplay) { + remainingTimeDisplay.updateContent(); + } + if (seekBar) { + seekBar.update(); + if (seekBar.loadProgressBar) { + seekBar.loadProgressBar.update(); + } + } + } + + /** + * Reset Playback ratio + */ + resetPlaybackRate_() { + this.playbackRate(this.defaultPlaybackRate()); + this.handleTechRateChange_(); + } + + /** + * Reset Volume bar + */ + resetVolumeBar_() { + this.volume(1.0); + this.trigger('volumechange'); + } + + /** + * Returns all of the current source objects. + * + * @return {Tech~SourceObject[]} + * The current source objects + */ + currentSources() { + const source = this.currentSource(); + const sources = []; + + // assume `{}` or `{ src }` + if (Object.keys(source).length !== 0) { + sources.push(source); + } + return this.cache_.sources || sources; + } + + /** + * Returns the current source object. + * + * @return {Tech~SourceObject} + * The current source object + */ + currentSource() { + return this.cache_.source || {}; + } + + /** + * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4 + * Can be used in conjunction with `currentType` to assist in rebuilding the current source object. + * + * @return {string} + * The current source + */ + currentSrc() { + return this.currentSource() && this.currentSource().src || ''; + } + + /** + * Get the current source type e.g. video/mp4 + * This can allow you rebuild the current source object so that you could load the same + * source and tech later + * + * @return {string} + * The source MIME type + */ + currentType() { + return this.currentSource() && this.currentSource().type || ''; + } + + /** + * Get or set the preload attribute + * + * @param {'none'|'auto'|'metadata'} [value] + * Preload mode to pass to tech + * + * @return {string|undefined} + * - The preload attribute value when getting + * - Nothing when setting + */ + preload(value) { + if (value !== undefined) { + this.techCall_('setPreload', value); + this.options_.preload = value; + return; + } + return this.techGet_('preload'); + } + + /** + * Get or set the autoplay option. When this is a boolean it will + * modify the attribute on the tech. When this is a string the attribute on + * the tech will be removed and `Player` will handle autoplay on loadstarts. + * + * @param {boolean|'play'|'muted'|'any'} [value] + * - true: autoplay using the browser behavior + * - false: do not autoplay + * - 'play': call play() on every loadstart + * - 'muted': call muted() then play() on every loadstart + * - 'any': call play() on every loadstart. if that fails call muted() then play(). + * - *: values other than those listed here will be set `autoplay` to true + * + * @return {boolean|string|undefined} + * - The current value of autoplay when getting + * - Nothing when setting + */ + autoplay(value) { + // getter usage + if (value === undefined) { + return this.options_.autoplay || false; + } + let techAutoplay; + + // if the value is a valid string set it to that, or normalize `true` to 'play', if need be + if (typeof value === 'string' && /(any|play|muted)/.test(value) || value === true && this.options_.normalizeAutoplay) { + this.options_.autoplay = value; + this.manualAutoplay_(typeof value === 'string' ? value : 'play'); + techAutoplay = false; + + // any falsy value sets autoplay to false in the browser, + // lets do the same + } else if (!value) { + this.options_.autoplay = false; + + // any other value (ie truthy) sets autoplay to true + } else { + this.options_.autoplay = true; + } + techAutoplay = typeof techAutoplay === 'undefined' ? this.options_.autoplay : techAutoplay; + + // if we don't have a tech then we do not queue up + // a setAutoplay call on tech ready. We do this because the + // autoplay option will be passed in the constructor and we + // do not need to set it twice + if (this.tech_) { + this.techCall_('setAutoplay', techAutoplay); + } + } + + /** + * Set or unset the playsinline attribute. + * Playsinline tells the browser that non-fullscreen playback is preferred. + * + * @param {boolean} [value] + * - true means that we should try to play inline by default + * - false means that we should use the browser's default playback mode, + * which in most cases is inline. iOS Safari is a notable exception + * and plays fullscreen by default. + * + * @return {string|undefined} + * - the current value of playsinline + * - Nothing when setting + * + * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline} + */ + playsinline(value) { + if (value !== undefined) { + this.techCall_('setPlaysinline', value); + this.options_.playsinline = value; + } + return this.techGet_('playsinline'); + } + + /** + * Get or set the loop attribute on the video element. + * + * @param {boolean} [value] + * - true means that we should loop the video + * - false means that we should not loop the video + * + * @return {boolean|undefined} + * - The current value of loop when getting + * - Nothing when setting + */ + loop(value) { + if (value !== undefined) { + this.techCall_('setLoop', value); + this.options_.loop = value; + return; + } + return this.techGet_('loop'); + } + + /** + * Get or set the poster image source url + * + * @fires Player#posterchange + * + * @param {string} [src] + * Poster image source URL + * + * @return {string|undefined} + * - The current value of poster when getting + * - Nothing when setting + */ + poster(src) { + if (src === undefined) { + return this.poster_; + } + + // The correct way to remove a poster is to set as an empty string + // other falsey values will throw errors + if (!src) { + src = ''; + } + if (src === this.poster_) { + return; + } + + // update the internal poster variable + this.poster_ = src; + + // update the tech's poster + this.techCall_('setPoster', src); + this.isPosterFromTech_ = false; + + // alert components that the poster has been set + /** + * This event fires when the poster image is changed on the player. + * + * @event Player#posterchange + * @type {Event} + */ + this.trigger('posterchange'); + } + + /** + * Some techs (e.g. YouTube) can provide a poster source in an + * asynchronous way. We want the poster component to use this + * poster source so that it covers up the tech's controls. + * (YouTube's play button). However we only want to use this + * source if the player user hasn't set a poster through + * the normal APIs. + * + * @fires Player#posterchange + * @listens Tech#posterchange + * @private + */ + handleTechPosterChange_() { + if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) { + const newPoster = this.tech_.poster() || ''; + if (newPoster !== this.poster_) { + this.poster_ = newPoster; + this.isPosterFromTech_ = true; + + // Let components know the poster has changed + this.trigger('posterchange'); + } + } + } + + /** + * Get or set whether or not the controls are showing. + * + * @fires Player#controlsenabled + * + * @param {boolean} [bool] + * - true to turn controls on + * - false to turn controls off + * + * @return {boolean|undefined} + * - The current value of controls when getting + * - Nothing when setting + */ + controls(bool) { + if (bool === undefined) { + return !!this.controls_; + } + bool = !!bool; + + // Don't trigger a change event unless it actually changed + if (this.controls_ === bool) { + return; + } + this.controls_ = bool; + if (this.usingNativeControls()) { + this.techCall_('setControls', bool); + } + if (this.controls_) { + this.removeClass('vjs-controls-disabled'); + this.addClass('vjs-controls-enabled'); + /** + * @event Player#controlsenabled + * @type {Event} + */ + this.trigger('controlsenabled'); + if (!this.usingNativeControls()) { + this.addTechControlsListeners_(); + } + } else { + this.removeClass('vjs-controls-enabled'); + this.addClass('vjs-controls-disabled'); + /** + * @event Player#controlsdisabled + * @type {Event} + */ + this.trigger('controlsdisabled'); + if (!this.usingNativeControls()) { + this.removeTechControlsListeners_(); + } + } + } + + /** + * Toggle native controls on/off. Native controls are the controls built into + * devices (e.g. default iPhone controls) or other techs + * (e.g. Vimeo Controls) + * **This should only be set by the current tech, because only the tech knows + * if it can support native controls** + * + * @fires Player#usingnativecontrols + * @fires Player#usingcustomcontrols + * + * @param {boolean} [bool] + * - true to turn native controls on + * - false to turn native controls off + * + * @return {boolean|undefined} + * - The current value of native controls when getting + * - Nothing when setting + */ + usingNativeControls(bool) { + if (bool === undefined) { + return !!this.usingNativeControls_; + } + bool = !!bool; + + // Don't trigger a change event unless it actually changed + if (this.usingNativeControls_ === bool) { + return; + } + this.usingNativeControls_ = bool; + if (this.usingNativeControls_) { + this.addClass('vjs-using-native-controls'); + + /** + * player is using the native device controls + * + * @event Player#usingnativecontrols + * @type {Event} + */ + this.trigger('usingnativecontrols'); + } else { + this.removeClass('vjs-using-native-controls'); + + /** + * player is using the custom HTML controls + * + * @event Player#usingcustomcontrols + * @type {Event} + */ + this.trigger('usingcustomcontrols'); + } + } + + /** + * Set or get the current MediaError + * + * @fires Player#error + * + * @param {MediaError|string|number} [err] + * A MediaError or a string/number to be turned + * into a MediaError + * + * @return {MediaError|null|undefined} + * - The current MediaError when getting (or null) + * - Nothing when setting + */ + error(err) { + if (err === undefined) { + return this.error_ || null; + } + + // allow hooks to modify error object + hooks('beforeerror').forEach(hookFunction => { + const newErr = hookFunction(this, err); + if (!(isObject(newErr) && !Array.isArray(newErr) || typeof newErr === 'string' || typeof newErr === 'number' || newErr === null)) { + this.log.error('please return a value that MediaError expects in beforeerror hooks'); + return; + } + err = newErr; + }); + + // Suppress the first error message for no compatible source until + // user interaction + if (this.options_.suppressNotSupportedError && err && err.code === 4) { + const triggerSuppressedError = function () { + this.error(err); + }; + this.options_.suppressNotSupportedError = false; + this.any(['click', 'touchstart'], triggerSuppressedError); + this.one('loadstart', function () { + this.off(['click', 'touchstart'], triggerSuppressedError); + }); + return; + } + + // restoring to default + if (err === null) { + this.error_ = null; + this.removeClass('vjs-error'); + if (this.errorDisplay) { + this.errorDisplay.close(); + } + return; + } + this.error_ = new MediaError(err); + + // add the vjs-error classname to the player + this.addClass('vjs-error'); + + // log the name of the error type and any message + // IE11 logs "[object object]" and required you to expand message to see error object + log.error(`(CODE:${this.error_.code} ${MediaError.errorTypes[this.error_.code]})`, this.error_.message, this.error_); + + /** + * @event Player#error + * @type {Event} + */ + this.trigger('error'); + + // notify hooks of the per player error + hooks('error').forEach(hookFunction => hookFunction(this, this.error_)); + return; + } + + /** + * Report user activity + * + * @param {Object} event + * Event object + */ + reportUserActivity(event) { + this.userActivity_ = true; + } + + /** + * Get/set if user is active + * + * @fires Player#useractive + * @fires Player#userinactive + * + * @param {boolean} [bool] + * - true if the user is active + * - false if the user is inactive + * + * @return {boolean|undefined} + * - The current value of userActive when getting + * - Nothing when setting + */ + userActive(bool) { + if (bool === undefined) { + return this.userActive_; + } + bool = !!bool; + if (bool === this.userActive_) { + return; + } + this.userActive_ = bool; + if (this.userActive_) { + this.userActivity_ = true; + this.removeClass('vjs-user-inactive'); + this.addClass('vjs-user-active'); + /** + * @event Player#useractive + * @type {Event} + */ + this.trigger('useractive'); + return; + } + + // Chrome/Safari/IE have bugs where when you change the cursor it can + // trigger a mousemove event. This causes an issue when you're hiding + // the cursor when the user is inactive, and a mousemove signals user + // activity. Making it impossible to go into inactive mode. Specifically + // this happens in fullscreen when we really need to hide the cursor. + // + // When this gets resolved in ALL browsers it can be removed + // https://code.google.com/p/chromium/issues/detail?id=103041 + if (this.tech_) { + this.tech_.one('mousemove', function (e) { + e.stopPropagation(); + e.preventDefault(); + }); + } + this.userActivity_ = false; + this.removeClass('vjs-user-active'); + this.addClass('vjs-user-inactive'); + /** + * @event Player#userinactive + * @type {Event} + */ + this.trigger('userinactive'); + } + + /** + * Listen for user activity based on timeout value + * + * @private + */ + listenForUserActivity_() { + let mouseInProgress; + let lastMoveX; + let lastMoveY; + const handleActivity = bind_(this, this.reportUserActivity); + const handleMouseMove = function (e) { + // #1068 - Prevent mousemove spamming + // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970 + if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) { + lastMoveX = e.screenX; + lastMoveY = e.screenY; + handleActivity(); + } + }; + const handleMouseDown = function () { + handleActivity(); + // For as long as the they are touching the device or have their mouse down, + // we consider them active even if they're not moving their finger or mouse. + // So we want to continue to update that they are active + this.clearInterval(mouseInProgress); + // Setting userActivity=true now and setting the interval to the same time + // as the activityCheck interval (250) should ensure we never miss the + // next activityCheck + mouseInProgress = this.setInterval(handleActivity, 250); + }; + const handleMouseUpAndMouseLeave = function (event) { + handleActivity(); + // Stop the interval that maintains activity if the mouse/touch is down + this.clearInterval(mouseInProgress); + }; + + // Any mouse movement will be considered user activity + this.on('mousedown', handleMouseDown); + this.on('mousemove', handleMouseMove); + this.on('mouseup', handleMouseUpAndMouseLeave); + this.on('mouseleave', handleMouseUpAndMouseLeave); + const controlBar = this.getChild('controlBar'); + + // Fixes bug on Android & iOS where when tapping progressBar (when control bar is displayed) + // controlBar would no longer be hidden by default timeout. + if (controlBar && !IS_IOS && !IS_ANDROID) { + controlBar.on('mouseenter', function (event) { + if (this.player().options_.inactivityTimeout !== 0) { + this.player().cache_.inactivityTimeout = this.player().options_.inactivityTimeout; + } + this.player().options_.inactivityTimeout = 0; + }); + controlBar.on('mouseleave', function (event) { + this.player().options_.inactivityTimeout = this.player().cache_.inactivityTimeout; + }); + } + + // Listen for keyboard navigation + // Shouldn't need to use inProgress interval because of key repeat + this.on('keydown', handleActivity); + this.on('keyup', handleActivity); + + // Run an interval every 250 milliseconds instead of stuffing everything into + // the mousemove/touchmove function itself, to prevent performance degradation. + // `this.reportUserActivity` simply sets this.userActivity_ to true, which + // then gets picked up by this loop + // http://ejohn.org/blog/learning-from-twitter/ + let inactivityTimeout; + + /** @this Player */ + const activityCheck = function () { + // Check to see if mouse/touch activity has happened + if (!this.userActivity_) { + return; + } + + // Reset the activity tracker + this.userActivity_ = false; + + // If the user state was inactive, set the state to active + this.userActive(true); + + // Clear any existing inactivity timeout to start the timer over + this.clearTimeout(inactivityTimeout); + const timeout = this.options_.inactivityTimeout; + if (timeout <= 0) { + return; + } + + // In <timeout> milliseconds, if no more activity has occurred the + // user will be considered inactive + inactivityTimeout = this.setTimeout(function () { + // Protect against the case where the inactivityTimeout can trigger just + // before the next user activity is picked up by the activity check loop + // causing a flicker + if (!this.userActivity_) { + this.userActive(false); + } + }, timeout); + }; + this.setInterval(activityCheck, 250); + } + + /** + * Gets or sets the current playback rate. A playback rate of + * 1.0 represents normal speed and 0.5 would indicate half-speed + * playback, for instance. + * + * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate + * + * @param {number} [rate] + * New playback rate to set. + * + * @return {number|undefined} + * - The current playback rate when getting or 1.0 + * - Nothing when setting + */ + playbackRate(rate) { + if (rate !== undefined) { + // NOTE: this.cache_.lastPlaybackRate is set from the tech handler + // that is registered above + this.techCall_('setPlaybackRate', rate); + return; + } + if (this.tech_ && this.tech_.featuresPlaybackRate) { + return this.cache_.lastPlaybackRate || this.techGet_('playbackRate'); + } + return 1.0; + } + + /** + * Gets or sets the current default playback rate. A default playback rate of + * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance. + * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not + * not the current playbackRate. + * + * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate + * + * @param {number} [rate] + * New default playback rate to set. + * + * @return {number|undefined} + * - The default playback rate when getting or 1.0 + * - Nothing when setting + */ + defaultPlaybackRate(rate) { + if (rate !== undefined) { + return this.techCall_('setDefaultPlaybackRate', rate); + } + if (this.tech_ && this.tech_.featuresPlaybackRate) { + return this.techGet_('defaultPlaybackRate'); + } + return 1.0; + } + + /** + * Gets or sets the audio flag + * + * @param {boolean} [bool] + * - true signals that this is an audio player + * - false signals that this is not an audio player + * + * @return {boolean|undefined} + * - The current value of isAudio when getting + * - Nothing when setting + */ + isAudio(bool) { + if (bool !== undefined) { + this.isAudio_ = !!bool; + return; + } + return !!this.isAudio_; + } + enableAudioOnlyUI_() { + // Update styling immediately to show the control bar so we can get its height + this.addClass('vjs-audio-only-mode'); + const playerChildren = this.children(); + const controlBar = this.getChild('ControlBar'); + const controlBarHeight = controlBar && controlBar.currentHeight(); + + // Hide all player components except the control bar. Control bar components + // needed only for video are hidden with CSS + playerChildren.forEach(child => { + if (child === controlBar) { + return; + } + if (child.el_ && !child.hasClass('vjs-hidden')) { + child.hide(); + this.audioOnlyCache_.hiddenChildren.push(child); + } + }); + this.audioOnlyCache_.playerHeight = this.currentHeight(); + + // Set the player height the same as the control bar + this.height(controlBarHeight); + this.trigger('audioonlymodechange'); + } + disableAudioOnlyUI_() { + this.removeClass('vjs-audio-only-mode'); + + // Show player components that were previously hidden + this.audioOnlyCache_.hiddenChildren.forEach(child => child.show()); + + // Reset player height + this.height(this.audioOnlyCache_.playerHeight); + this.trigger('audioonlymodechange'); + } + + /** + * Get the current audioOnlyMode state or set audioOnlyMode to true or false. + * + * Setting this to `true` will hide all player components except the control bar, + * as well as control bar components needed only for video. + * + * @param {boolean} [value] + * The value to set audioOnlyMode to. + * + * @return {Promise|boolean} + * A Promise is returned when setting the state, and a boolean when getting + * the present state + */ + audioOnlyMode(value) { + if (typeof value !== 'boolean' || value === this.audioOnlyMode_) { + return this.audioOnlyMode_; + } + this.audioOnlyMode_ = value; + + // Enable Audio Only Mode + if (value) { + const exitPromises = []; + + // Fullscreen and PiP are not supported in audioOnlyMode, so exit if we need to. + if (this.isInPictureInPicture()) { + exitPromises.push(this.exitPictureInPicture()); + } + if (this.isFullscreen()) { + exitPromises.push(this.exitFullscreen()); + } + if (this.audioPosterMode()) { + exitPromises.push(this.audioPosterMode(false)); + } + return Promise.all(exitPromises).then(() => this.enableAudioOnlyUI_()); + } + + // Disable Audio Only Mode + return Promise.resolve().then(() => this.disableAudioOnlyUI_()); + } + enablePosterModeUI_() { + // Hide the video element and show the poster image to enable posterModeUI + const tech = this.tech_ && this.tech_; + tech.hide(); + this.addClass('vjs-audio-poster-mode'); + this.trigger('audiopostermodechange'); + } + disablePosterModeUI_() { + // Show the video element and hide the poster image to disable posterModeUI + const tech = this.tech_ && this.tech_; + tech.show(); + this.removeClass('vjs-audio-poster-mode'); + this.trigger('audiopostermodechange'); + } + + /** + * Get the current audioPosterMode state or set audioPosterMode to true or false + * + * @param {boolean} [value] + * The value to set audioPosterMode to. + * + * @return {Promise|boolean} + * A Promise is returned when setting the state, and a boolean when getting + * the present state + */ + audioPosterMode(value) { + if (typeof value !== 'boolean' || value === this.audioPosterMode_) { + return this.audioPosterMode_; + } + this.audioPosterMode_ = value; + if (value) { + if (this.audioOnlyMode()) { + const audioOnlyModePromise = this.audioOnlyMode(false); + return audioOnlyModePromise.then(() => { + // enable audio poster mode after audio only mode is disabled + this.enablePosterModeUI_(); + }); + } + return Promise.resolve().then(() => { + // enable audio poster mode + this.enablePosterModeUI_(); + }); + } + return Promise.resolve().then(() => { + // disable audio poster mode + this.disablePosterModeUI_(); + }); + } + + /** + * A helper method for adding a {@link TextTrack} to our + * {@link TextTrackList}. + * + * In addition to the W3C settings we allow adding additional info through options. + * + * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack + * + * @param {string} [kind] + * the kind of TextTrack you are adding + * + * @param {string} [label] + * the label to give the TextTrack label + * + * @param {string} [language] + * the language to set on the TextTrack + * + * @return {TextTrack|undefined} + * the TextTrack that was added or undefined + * if there is no tech + */ + addTextTrack(kind, label, language) { + if (this.tech_) { + return this.tech_.addTextTrack(kind, label, language); + } + } + + /** + * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}. + * + * @param {Object} options + * Options to pass to {@link HTMLTrackElement} during creation. See + * {@link HTMLTrackElement} for object properties that you should use. + * + * @param {boolean} [manualCleanup=false] if set to true, the TextTrack will not be removed + * from the TextTrackList and HtmlTrackElementList + * after a source change + * + * @return { import('./tracks/html-track-element').default } + * the HTMLTrackElement that was created and added + * to the HtmlTrackElementList and the remote + * TextTrackList + * + */ + addRemoteTextTrack(options, manualCleanup) { + if (this.tech_) { + return this.tech_.addRemoteTextTrack(options, manualCleanup); + } + } + + /** + * Remove a remote {@link TextTrack} from the respective + * {@link TextTrackList} and {@link HtmlTrackElementList}. + * + * @param {Object} track + * Remote {@link TextTrack} to remove + * + * @return {undefined} + * does not return anything + */ + removeRemoteTextTrack(obj = {}) { + let { + track + } = obj; + if (!track) { + track = obj; + } + + // destructure the input into an object with a track argument, defaulting to arguments[0] + // default the whole argument to an empty object if nothing was passed in + + if (this.tech_) { + return this.tech_.removeRemoteTextTrack(track); + } + } + + /** + * Gets available media playback quality metrics as specified by the W3C's Media + * Playback Quality API. + * + * @see [Spec]{@link https://wicg.github.io/media-playback-quality} + * + * @return {Object|undefined} + * An object with supported media playback quality metrics or undefined if there + * is no tech or the tech does not support it. + */ + getVideoPlaybackQuality() { + return this.techGet_('getVideoPlaybackQuality'); + } + + /** + * Get video width + * + * @return {number} + * current video width + */ + videoWidth() { + return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0; + } + + /** + * Get video height + * + * @return {number} + * current video height + */ + videoHeight() { + return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0; + } + + /** + * Set or get the player's language code. + * + * Changing the language will trigger + * [languagechange]{@link Player#event:languagechange} + * which Components can use to update control text. + * ClickableComponent will update its control text by default on + * [languagechange]{@link Player#event:languagechange}. + * + * @fires Player#languagechange + * + * @param {string} [code] + * the language code to set the player to + * + * @return {string|undefined} + * - The current language code when getting + * - Nothing when setting + */ + language(code) { + if (code === undefined) { + return this.language_; + } + if (this.language_ !== String(code).toLowerCase()) { + this.language_ = String(code).toLowerCase(); + + // during first init, it's possible some things won't be evented + if (isEvented(this)) { + /** + * fires when the player language change + * + * @event Player#languagechange + * @type {Event} + */ + this.trigger('languagechange'); + } + } + } + + /** + * Get the player's language dictionary + * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time + * Languages specified directly in the player options have precedence + * + * @return {Array} + * An array of of supported languages + */ + languages() { + return merge(Player.prototype.options_.languages, this.languages_); + } + + /** + * returns a JavaScript object representing the current track + * information. **DOES not return it as JSON** + * + * @return {Object} + * Object representing the current of track info + */ + toJSON() { + const options = merge(this.options_); + const tracks = options.tracks; + options.tracks = []; + for (let i = 0; i < tracks.length; i++) { + let track = tracks[i]; + + // deep merge tracks and null out player so no circular references + track = merge(track); + track.player = undefined; + options.tracks[i] = track; + } + return options; + } + + /** + * Creates a simple modal dialog (an instance of the {@link ModalDialog} + * component) that immediately overlays the player with arbitrary + * content and removes itself when closed. + * + * @param {string|Function|Element|Array|null} content + * Same as {@link ModalDialog#content}'s param of the same name. + * The most straight-forward usage is to provide a string or DOM + * element. + * + * @param {Object} [options] + * Extra options which will be passed on to the {@link ModalDialog}. + * + * @return {ModalDialog} + * the {@link ModalDialog} that was created + */ + createModal(content, options) { + options = options || {}; + options.content = content || ''; + const modal = new ModalDialog(this, options); + this.addChild(modal); + modal.on('dispose', () => { + this.removeChild(modal); + }); + modal.open(); + return modal; + } + + /** + * Change breakpoint classes when the player resizes. + * + * @private + */ + updateCurrentBreakpoint_() { + if (!this.responsive()) { + return; + } + const currentBreakpoint = this.currentBreakpoint(); + const currentWidth = this.currentWidth(); + for (let i = 0; i < BREAKPOINT_ORDER.length; i++) { + const candidateBreakpoint = BREAKPOINT_ORDER[i]; + const maxWidth = this.breakpoints_[candidateBreakpoint]; + if (currentWidth <= maxWidth) { + // The current breakpoint did not change, nothing to do. + if (currentBreakpoint === candidateBreakpoint) { + return; + } + + // Only remove a class if there is a current breakpoint. + if (currentBreakpoint) { + this.removeClass(BREAKPOINT_CLASSES[currentBreakpoint]); + } + this.addClass(BREAKPOINT_CLASSES[candidateBreakpoint]); + this.breakpoint_ = candidateBreakpoint; + break; + } + } + } + + /** + * Removes the current breakpoint. + * + * @private + */ + removeCurrentBreakpoint_() { + const className = this.currentBreakpointClass(); + this.breakpoint_ = ''; + if (className) { + this.removeClass(className); + } + } + + /** + * Get or set breakpoints on the player. + * + * Calling this method with an object or `true` will remove any previous + * custom breakpoints and start from the defaults again. + * + * @param {Object|boolean} [breakpoints] + * If an object is given, it can be used to provide custom + * breakpoints. If `true` is given, will set default breakpoints. + * If this argument is not given, will simply return the current + * breakpoints. + * + * @param {number} [breakpoints.tiny] + * The maximum width for the "vjs-layout-tiny" class. + * + * @param {number} [breakpoints.xsmall] + * The maximum width for the "vjs-layout-x-small" class. + * + * @param {number} [breakpoints.small] + * The maximum width for the "vjs-layout-small" class. + * + * @param {number} [breakpoints.medium] + * The maximum width for the "vjs-layout-medium" class. + * + * @param {number} [breakpoints.large] + * The maximum width for the "vjs-layout-large" class. + * + * @param {number} [breakpoints.xlarge] + * The maximum width for the "vjs-layout-x-large" class. + * + * @param {number} [breakpoints.huge] + * The maximum width for the "vjs-layout-huge" class. + * + * @return {Object} + * An object mapping breakpoint names to maximum width values. + */ + breakpoints(breakpoints) { + // Used as a getter. + if (breakpoints === undefined) { + return Object.assign(this.breakpoints_); + } + this.breakpoint_ = ''; + this.breakpoints_ = Object.assign({}, DEFAULT_BREAKPOINTS, breakpoints); + + // When breakpoint definitions change, we need to update the currently + // selected breakpoint. + this.updateCurrentBreakpoint_(); + + // Clone the breakpoints before returning. + return Object.assign(this.breakpoints_); + } + + /** + * Get or set a flag indicating whether or not this player should adjust + * its UI based on its dimensions. + * + * @param {boolean} [value] + * Should be `true` if the player should adjust its UI based on its + * dimensions; otherwise, should be `false`. + * + * @return {boolean|undefined} + * Will be `true` if this player should adjust its UI based on its + * dimensions; otherwise, will be `false`. + * Nothing if setting + */ + responsive(value) { + // Used as a getter. + if (value === undefined) { + return this.responsive_; + } + value = Boolean(value); + const current = this.responsive_; + + // Nothing changed. + if (value === current) { + return; + } + + // The value actually changed, set it. + this.responsive_ = value; + + // Start listening for breakpoints and set the initial breakpoint if the + // player is now responsive. + if (value) { + this.on('playerresize', this.boundUpdateCurrentBreakpoint_); + this.updateCurrentBreakpoint_(); + + // Stop listening for breakpoints if the player is no longer responsive. + } else { + this.off('playerresize', this.boundUpdateCurrentBreakpoint_); + this.removeCurrentBreakpoint_(); + } + return value; + } + + /** + * Get current breakpoint name, if any. + * + * @return {string} + * If there is currently a breakpoint set, returns a the key from the + * breakpoints object matching it. Otherwise, returns an empty string. + */ + currentBreakpoint() { + return this.breakpoint_; + } + + /** + * Get the current breakpoint class name. + * + * @return {string} + * The matching class name (e.g. `"vjs-layout-tiny"` or + * `"vjs-layout-large"`) for the current breakpoint. Empty string if + * there is no current breakpoint. + */ + currentBreakpointClass() { + return BREAKPOINT_CLASSES[this.breakpoint_] || ''; + } + + /** + * An object that describes a single piece of media. + * + * Properties that are not part of this type description will be retained; so, + * this can be viewed as a generic metadata storage mechanism as well. + * + * @see {@link https://wicg.github.io/mediasession/#the-mediametadata-interface} + * @typedef {Object} Player~MediaObject + * + * @property {string} [album] + * Unused, except if this object is passed to the `MediaSession` + * API. + * + * @property {string} [artist] + * Unused, except if this object is passed to the `MediaSession` + * API. + * + * @property {Object[]} [artwork] + * Unused, except if this object is passed to the `MediaSession` + * API. If not specified, will be populated via the `poster`, if + * available. + * + * @property {string} [poster] + * URL to an image that will display before playback. + * + * @property {Tech~SourceObject|Tech~SourceObject[]|string} [src] + * A single source object, an array of source objects, or a string + * referencing a URL to a media source. It is _highly recommended_ + * that an object or array of objects is used here, so that source + * selection algorithms can take the `type` into account. + * + * @property {string} [title] + * Unused, except if this object is passed to the `MediaSession` + * API. + * + * @property {Object[]} [textTracks] + * An array of objects to be used to create text tracks, following + * the {@link https://www.w3.org/TR/html50/embedded-content-0.html#the-track-element|native track element format}. + * For ease of removal, these will be created as "remote" text + * tracks and set to automatically clean up on source changes. + * + * These objects may have properties like `src`, `kind`, `label`, + * and `language`, see {@link Tech#createRemoteTextTrack}. + */ + + /** + * Populate the player using a {@link Player~MediaObject|MediaObject}. + * + * @param {Player~MediaObject} media + * A media object. + * + * @param {Function} ready + * A callback to be called when the player is ready. + */ + loadMedia(media, ready) { + if (!media || typeof media !== 'object') { + return; + } + const crossOrigin = this.crossOrigin(); + this.reset(); + + // Clone the media object so it cannot be mutated from outside. + this.cache_.media = merge(media); + const { + artist, + artwork, + description, + poster, + src, + textTracks, + title + } = this.cache_.media; + + // If `artwork` is not given, create it using `poster`. + if (!artwork && poster) { + this.cache_.media.artwork = [{ + src: poster, + type: getMimetype(poster) + }]; + } + if (crossOrigin) { + this.crossOrigin(crossOrigin); + } + if (src) { + this.src(src); + } + if (poster) { + this.poster(poster); + } + if (Array.isArray(textTracks)) { + textTracks.forEach(tt => this.addRemoteTextTrack(tt, false)); + } + if (this.titleBar) { + this.titleBar.update({ + title, + description: description || artist || '' + }); + } + this.ready(ready); + } + + /** + * Get a clone of the current {@link Player~MediaObject} for this player. + * + * If the `loadMedia` method has not been used, will attempt to return a + * {@link Player~MediaObject} based on the current state of the player. + * + * @return {Player~MediaObject} + */ + getMedia() { + if (!this.cache_.media) { + const poster = this.poster(); + const src = this.currentSources(); + const textTracks = Array.prototype.map.call(this.remoteTextTracks(), tt => ({ + kind: tt.kind, + label: tt.label, + language: tt.language, + src: tt.src + })); + const media = { + src, + textTracks + }; + if (poster) { + media.poster = poster; + media.artwork = [{ + src: media.poster, + type: getMimetype(media.poster) + }]; + } + return media; + } + return merge(this.cache_.media); + } + + /** + * Gets tag settings + * + * @param {Element} tag + * The player tag + * + * @return {Object} + * An object containing all of the settings + * for a player tag + */ + static getTagSettings(tag) { + const baseOptions = { + sources: [], + tracks: [] + }; + const tagOptions = getAttributes(tag); + const dataSetup = tagOptions['data-setup']; + if (hasClass(tag, 'vjs-fill')) { + tagOptions.fill = true; + } + if (hasClass(tag, 'vjs-fluid')) { + tagOptions.fluid = true; + } + + // Check if data-setup attr exists. + if (dataSetup !== null) { + // Parse options JSON + // If empty string, make it a parsable json object. + const [err, data] = tuple(dataSetup || '{}'); + if (err) { + log.error(err); + } + Object.assign(tagOptions, data); + } + Object.assign(baseOptions, tagOptions); + + // Get tag children settings + if (tag.hasChildNodes()) { + const children = tag.childNodes; + for (let i = 0, j = children.length; i < j; i++) { + const child = children[i]; + // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/ + const childName = child.nodeName.toLowerCase(); + if (childName === 'source') { + baseOptions.sources.push(getAttributes(child)); + } else if (childName === 'track') { + baseOptions.tracks.push(getAttributes(child)); + } + } + } + return baseOptions; + } + + /** + * Set debug mode to enable/disable logs at info level. + * + * @param {boolean} enabled + * @fires Player#debugon + * @fires Player#debugoff + * @return {boolean|undefined} + */ + debug(enabled) { + if (enabled === undefined) { + return this.debugEnabled_; + } + if (enabled) { + this.trigger('debugon'); + this.previousLogLevel_ = this.log.level; + this.log.level('debug'); + this.debugEnabled_ = true; + } else { + this.trigger('debugoff'); + this.log.level(this.previousLogLevel_); + this.previousLogLevel_ = undefined; + this.debugEnabled_ = false; + } + } + + /** + * Set or get current playback rates. + * Takes an array and updates the playback rates menu with the new items. + * Pass in an empty array to hide the menu. + * Values other than arrays are ignored. + * + * @fires Player#playbackrateschange + * @param {number[]} [newRates] + * The new rates that the playback rates menu should update to. + * An empty array will hide the menu + * @return {number[]} When used as a getter will return the current playback rates + */ + playbackRates(newRates) { + if (newRates === undefined) { + return this.cache_.playbackRates; + } + + // ignore any value that isn't an array + if (!Array.isArray(newRates)) { + return; + } + + // ignore any arrays that don't only contain numbers + if (!newRates.every(rate => typeof rate === 'number')) { + return; + } + this.cache_.playbackRates = newRates; + + /** + * fires when the playback rates in a player are changed + * + * @event Player#playbackrateschange + * @type {Event} + */ + this.trigger('playbackrateschange'); + } + } + + /** + * Get the {@link VideoTrackList} + * + * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist + * + * @return {VideoTrackList} + * the current video track list + * + * @method Player.prototype.videoTracks + */ + + /** + * Get the {@link AudioTrackList} + * + * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist + * + * @return {AudioTrackList} + * the current audio track list + * + * @method Player.prototype.audioTracks + */ + + /** + * Get the {@link TextTrackList} + * + * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks + * + * @return {TextTrackList} + * the current text track list + * + * @method Player.prototype.textTracks + */ + + /** + * Get the remote {@link TextTrackList} + * + * @return {TextTrackList} + * The current remote text track list + * + * @method Player.prototype.remoteTextTracks + */ + + /** + * Get the remote {@link HtmlTrackElementList} tracks. + * + * @return {HtmlTrackElementList} + * The current remote text track element list + * + * @method Player.prototype.remoteTextTrackEls + */ + + ALL.names.forEach(function (name) { + const props = ALL[name]; + Player.prototype[props.getterName] = function () { + if (this.tech_) { + return this.tech_[props.getterName](); + } + + // if we have not yet loadTech_, we create {video,audio,text}Tracks_ + // these will be passed to the tech during loading + this[props.privateName] = this[props.privateName] || new props.ListClass(); + return this[props.privateName]; + }; + }); + + /** + * Get or set the `Player`'s crossorigin option. For the HTML5 player, this + * sets the `crossOrigin` property on the `<video>` tag to control the CORS + * behavior. + * + * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin} + * + * @param {string} [value] + * The value to set the `Player`'s crossorigin to. If an argument is + * given, must be one of `anonymous` or `use-credentials`. + * + * @return {string|undefined} + * - The current crossorigin value of the `Player` when getting. + * - undefined when setting + */ + Player.prototype.crossorigin = Player.prototype.crossOrigin; + + /** + * Global enumeration of players. + * + * The keys are the player IDs and the values are either the {@link Player} + * instance or `null` for disposed players. + * + * @type {Object} + */ + Player.players = {}; + const navigator = window.navigator; + + /* + * Player instance options, surfaced using options + * options = Player.prototype.options_ + * Make changes in options, not here. + * + * @type {Object} + * @private + */ + Player.prototype.options_ = { + // Default order of fallback technology + techOrder: Tech.defaultTechOrder_, + html5: {}, + // enable sourceset by default + enableSourceset: true, + // default inactivity timeout + inactivityTimeout: 2000, + // default playback rates + playbackRates: [], + // Add playback rate selection by adding rates + // 'playbackRates': [0.5, 1, 1.5, 2], + liveui: false, + // Included control sets + children: ['mediaLoader', 'posterImage', 'titleBar', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'liveTracker', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'], + language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en', + // locales and their language translations + languages: {}, + // Default message to show when a video cannot be played. + notSupportedMessage: 'No compatible source was found for this media.', + normalizeAutoplay: false, + fullscreen: { + options: { + navigationUI: 'hide' + } + }, + breakpoints: {}, + responsive: false, + audioOnlyMode: false, + audioPosterMode: false, + // Default smooth seeking to false + enableSmoothSeeking: false + }; + TECH_EVENTS_RETRIGGER.forEach(function (event) { + Player.prototype[`handleTech${toTitleCase(event)}_`] = function () { + return this.trigger(event); + }; + }); + + /** + * Fired when the player has initial duration and dimension information + * + * @event Player#loadedmetadata + * @type {Event} + */ + + /** + * Fired when the player has downloaded data at the current playback position + * + * @event Player#loadeddata + * @type {Event} + */ + + /** + * Fired when the current playback position has changed * + * During playback this is fired every 15-250 milliseconds, depending on the + * playback technology in use. + * + * @event Player#timeupdate + * @type {Event} + */ + + /** + * Fired when the volume changes + * + * @event Player#volumechange + * @type {Event} + */ + + /** + * Reports whether or not a player has a plugin available. + * + * This does not report whether or not the plugin has ever been initialized + * on this player. For that, [usingPlugin]{@link Player#usingPlugin}. + * + * @method Player#hasPlugin + * @param {string} name + * The name of a plugin. + * + * @return {boolean} + * Whether or not this player has the requested plugin available. + */ + + /** + * Reports whether or not a player is using a plugin by name. + * + * For basic plugins, this only reports whether the plugin has _ever_ been + * initialized on this player. + * + * @method Player#usingPlugin + * @param {string} name + * The name of a plugin. + * + * @return {boolean} + * Whether or not this player is using the requested plugin. + */ + + Component.registerComponent('Player', Player); + + /** + * @file plugin.js + */ + + /** + * The base plugin name. + * + * @private + * @constant + * @type {string} + */ + const BASE_PLUGIN_NAME = 'plugin'; + + /** + * The key on which a player's active plugins cache is stored. + * + * @private + * @constant + * @type {string} + */ + const PLUGIN_CACHE_KEY = 'activePlugins_'; + + /** + * Stores registered plugins in a private space. + * + * @private + * @type {Object} + */ + const pluginStorage = {}; + + /** + * Reports whether or not a plugin has been registered. + * + * @private + * @param {string} name + * The name of a plugin. + * + * @return {boolean} + * Whether or not the plugin has been registered. + */ + const pluginExists = name => pluginStorage.hasOwnProperty(name); + + /** + * Get a single registered plugin by name. + * + * @private + * @param {string} name + * The name of a plugin. + * + * @return {typeof Plugin|Function|undefined} + * The plugin (or undefined). + */ + const getPlugin = name => pluginExists(name) ? pluginStorage[name] : undefined; + + /** + * Marks a plugin as "active" on a player. + * + * Also, ensures that the player has an object for tracking active plugins. + * + * @private + * @param {Player} player + * A Video.js player instance. + * + * @param {string} name + * The name of a plugin. + */ + const markPluginAsActive = (player, name) => { + player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {}; + player[PLUGIN_CACHE_KEY][name] = true; + }; + + /** + * Triggers a pair of plugin setup events. + * + * @private + * @param {Player} player + * A Video.js player instance. + * + * @param {PluginEventHash} hash + * A plugin event hash. + * + * @param {boolean} [before] + * If true, prefixes the event name with "before". In other words, + * use this to trigger "beforepluginsetup" instead of "pluginsetup". + */ + const triggerSetupEvent = (player, hash, before) => { + const eventName = (before ? 'before' : '') + 'pluginsetup'; + player.trigger(eventName, hash); + player.trigger(eventName + ':' + hash.name, hash); + }; + + /** + * Takes a basic plugin function and returns a wrapper function which marks + * on the player that the plugin has been activated. + * + * @private + * @param {string} name + * The name of the plugin. + * + * @param {Function} plugin + * The basic plugin. + * + * @return {Function} + * A wrapper function for the given plugin. + */ + const createBasicPlugin = function (name, plugin) { + const basicPluginWrapper = function () { + // We trigger the "beforepluginsetup" and "pluginsetup" events on the player + // regardless, but we want the hash to be consistent with the hash provided + // for advanced plugins. + // + // The only potentially counter-intuitive thing here is the `instance` in + // the "pluginsetup" event is the value returned by the `plugin` function. + triggerSetupEvent(this, { + name, + plugin, + instance: null + }, true); + const instance = plugin.apply(this, arguments); + markPluginAsActive(this, name); + triggerSetupEvent(this, { + name, + plugin, + instance + }); + return instance; + }; + Object.keys(plugin).forEach(function (prop) { + basicPluginWrapper[prop] = plugin[prop]; + }); + return basicPluginWrapper; + }; + + /** + * Takes a plugin sub-class and returns a factory function for generating + * instances of it. + * + * This factory function will replace itself with an instance of the requested + * sub-class of Plugin. + * + * @private + * @param {string} name + * The name of the plugin. + * + * @param {Plugin} PluginSubClass + * The advanced plugin. + * + * @return {Function} + */ + const createPluginFactory = (name, PluginSubClass) => { + // Add a `name` property to the plugin prototype so that each plugin can + // refer to itself by name. + PluginSubClass.prototype.name = name; + return function (...args) { + triggerSetupEvent(this, { + name, + plugin: PluginSubClass, + instance: null + }, true); + const instance = new PluginSubClass(...[this, ...args]); + + // The plugin is replaced by a function that returns the current instance. + this[name] = () => instance; + triggerSetupEvent(this, instance.getEventHash()); + return instance; + }; + }; + + /** + * Parent class for all advanced plugins. + * + * @mixes module:evented~EventedMixin + * @mixes module:stateful~StatefulMixin + * @fires Player#beforepluginsetup + * @fires Player#beforepluginsetup:$name + * @fires Player#pluginsetup + * @fires Player#pluginsetup:$name + * @listens Player#dispose + * @throws {Error} + * If attempting to instantiate the base {@link Plugin} class + * directly instead of via a sub-class. + */ + class Plugin { + /** + * Creates an instance of this class. + * + * Sub-classes should call `super` to ensure plugins are properly initialized. + * + * @param {Player} player + * A Video.js player instance. + */ + constructor(player) { + if (this.constructor === Plugin) { + throw new Error('Plugin must be sub-classed; not directly instantiated.'); + } + this.player = player; + if (!this.log) { + this.log = this.player.log.createLogger(this.name); + } + + // Make this object evented, but remove the added `trigger` method so we + // use the prototype version instead. + evented(this); + delete this.trigger; + stateful(this, this.constructor.defaultState); + markPluginAsActive(player, this.name); + + // Auto-bind the dispose method so we can use it as a listener and unbind + // it later easily. + this.dispose = this.dispose.bind(this); + + // If the player is disposed, dispose the plugin. + player.on('dispose', this.dispose); + } + + /** + * Get the version of the plugin that was set on <pluginName>.VERSION + */ + version() { + return this.constructor.VERSION; + } + + /** + * Each event triggered by plugins includes a hash of additional data with + * conventional properties. + * + * This returns that object or mutates an existing hash. + * + * @param {Object} [hash={}] + * An object to be used as event an event hash. + * + * @return {PluginEventHash} + * An event hash object with provided properties mixed-in. + */ + getEventHash(hash = {}) { + hash.name = this.name; + hash.plugin = this.constructor; + hash.instance = this; + return hash; + } + + /** + * Triggers an event on the plugin object and overrides + * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}. + * + * @param {string|Object} event + * An event type or an object with a type property. + * + * @param {Object} [hash={}] + * Additional data hash to merge with a + * {@link PluginEventHash|PluginEventHash}. + * + * @return {boolean} + * Whether or not default was prevented. + */ + trigger(event, hash = {}) { + return trigger(this.eventBusEl_, event, this.getEventHash(hash)); + } + + /** + * Handles "statechanged" events on the plugin. No-op by default, override by + * subclassing. + * + * @abstract + * @param {Event} e + * An event object provided by a "statechanged" event. + * + * @param {Object} e.changes + * An object describing changes that occurred with the "statechanged" + * event. + */ + handleStateChanged(e) {} + + /** + * Disposes a plugin. + * + * Subclasses can override this if they want, but for the sake of safety, + * it's probably best to subscribe the "dispose" event. + * + * @fires Plugin#dispose + */ + dispose() { + const { + name, + player + } = this; + + /** + * Signals that a advanced plugin is about to be disposed. + * + * @event Plugin#dispose + * @type {Event} + */ + this.trigger('dispose'); + this.off(); + player.off('dispose', this.dispose); + + // Eliminate any possible sources of leaking memory by clearing up + // references between the player and the plugin instance and nulling out + // the plugin's state and replacing methods with a function that throws. + player[PLUGIN_CACHE_KEY][name] = false; + this.player = this.state = null; + + // Finally, replace the plugin name on the player with a new factory + // function, so that the plugin is ready to be set up again. + player[name] = createPluginFactory(name, pluginStorage[name]); + } + + /** + * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`). + * + * @param {string|Function} plugin + * If a string, matches the name of a plugin. If a function, will be + * tested directly. + * + * @return {boolean} + * Whether or not a plugin is a basic plugin. + */ + static isBasic(plugin) { + const p = typeof plugin === 'string' ? getPlugin(plugin) : plugin; + return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype); + } + + /** + * Register a Video.js plugin. + * + * @param {string} name + * The name of the plugin to be registered. Must be a string and + * must not match an existing plugin or a method on the `Player` + * prototype. + * + * @param {typeof Plugin|Function} plugin + * A sub-class of `Plugin` or a function for basic plugins. + * + * @return {typeof Plugin|Function} + * For advanced plugins, a factory function for that plugin. For + * basic plugins, a wrapper function that initializes the plugin. + */ + static registerPlugin(name, plugin) { + if (typeof name !== 'string') { + throw new Error(`Illegal plugin name, "${name}", must be a string, was ${typeof name}.`); + } + if (pluginExists(name)) { + log.warn(`A plugin named "${name}" already exists. You may want to avoid re-registering plugins!`); + } else if (Player.prototype.hasOwnProperty(name)) { + throw new Error(`Illegal plugin name, "${name}", cannot share a name with an existing player method!`); + } + if (typeof plugin !== 'function') { + throw new Error(`Illegal plugin for "${name}", must be a function, was ${typeof plugin}.`); + } + pluginStorage[name] = plugin; + + // Add a player prototype method for all sub-classed plugins (but not for + // the base Plugin class). + if (name !== BASE_PLUGIN_NAME) { + if (Plugin.isBasic(plugin)) { + Player.prototype[name] = createBasicPlugin(name, plugin); + } else { + Player.prototype[name] = createPluginFactory(name, plugin); + } + } + return plugin; + } + + /** + * De-register a Video.js plugin. + * + * @param {string} name + * The name of the plugin to be de-registered. Must be a string that + * matches an existing plugin. + * + * @throws {Error} + * If an attempt is made to de-register the base plugin. + */ + static deregisterPlugin(name) { + if (name === BASE_PLUGIN_NAME) { + throw new Error('Cannot de-register base plugin.'); + } + if (pluginExists(name)) { + delete pluginStorage[name]; + delete Player.prototype[name]; + } + } + + /** + * Gets an object containing multiple Video.js plugins. + * + * @param {Array} [names] + * If provided, should be an array of plugin names. Defaults to _all_ + * plugin names. + * + * @return {Object|undefined} + * An object containing plugin(s) associated with their name(s) or + * `undefined` if no matching plugins exist). + */ + static getPlugins(names = Object.keys(pluginStorage)) { + let result; + names.forEach(name => { + const plugin = getPlugin(name); + if (plugin) { + result = result || {}; + result[name] = plugin; + } + }); + return result; + } + + /** + * Gets a plugin's version, if available + * + * @param {string} name + * The name of a plugin. + * + * @return {string} + * The plugin's version or an empty string. + */ + static getPluginVersion(name) { + const plugin = getPlugin(name); + return plugin && plugin.VERSION || ''; + } + } + + /** + * Gets a plugin by name if it exists. + * + * @static + * @method getPlugin + * @memberOf Plugin + * @param {string} name + * The name of a plugin. + * + * @returns {typeof Plugin|Function|undefined} + * The plugin (or `undefined`). + */ + Plugin.getPlugin = getPlugin; + + /** + * The name of the base plugin class as it is registered. + * + * @type {string} + */ + Plugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME; + Plugin.registerPlugin(BASE_PLUGIN_NAME, Plugin); + + /** + * Documented in player.js + * + * @ignore + */ + Player.prototype.usingPlugin = function (name) { + return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true; + }; + + /** + * Documented in player.js + * + * @ignore + */ + Player.prototype.hasPlugin = function (name) { + return !!pluginExists(name); + }; + + /** + * Signals that a plugin is about to be set up on a player. + * + * @event Player#beforepluginsetup + * @type {PluginEventHash} + */ + + /** + * Signals that a plugin is about to be set up on a player - by name. The name + * is the name of the plugin. + * + * @event Player#beforepluginsetup:$name + * @type {PluginEventHash} + */ + + /** + * Signals that a plugin has just been set up on a player. + * + * @event Player#pluginsetup + * @type {PluginEventHash} + */ + + /** + * Signals that a plugin has just been set up on a player - by name. The name + * is the name of the plugin. + * + * @event Player#pluginsetup:$name + * @type {PluginEventHash} + */ + + /** + * @typedef {Object} PluginEventHash + * + * @property {string} instance + * For basic plugins, the return value of the plugin function. For + * advanced plugins, the plugin instance on which the event is fired. + * + * @property {string} name + * The name of the plugin. + * + * @property {string} plugin + * For basic plugins, the plugin function. For advanced plugins, the + * plugin class/constructor. + */ + + /** + * @file deprecate.js + * @module deprecate + */ + + /** + * Decorate a function with a deprecation message the first time it is called. + * + * @param {string} message + * A deprecation message to log the first time the returned function + * is called. + * + * @param {Function} fn + * The function to be deprecated. + * + * @return {Function} + * A wrapper function that will log a deprecation warning the first + * time it is called. The return value will be the return value of + * the wrapped function. + */ + function deprecate(message, fn) { + let warned = false; + return function (...args) { + if (!warned) { + log.warn(message); + } + warned = true; + return fn.apply(this, args); + }; + } + + /** + * Internal function used to mark a function as deprecated in the next major + * version with consistent messaging. + * + * @param {number} major The major version where it will be removed + * @param {string} oldName The old function name + * @param {string} newName The new function name + * @param {Function} fn The function to deprecate + * @return {Function} The decorated function + */ + function deprecateForMajor(major, oldName, newName, fn) { + return deprecate(`${oldName} is deprecated and will be removed in ${major}.0; please use ${newName} instead.`, fn); + } + + var VjsErrors = { + UnsupportedSidxContainer: 'unsupported-sidx-container-error', + DashManifestSidxParsingError: 'dash-manifest-sidx-parsing-error', + HlsPlaylistRequestError: 'hls-playlist-request-error', + SegmentUnsupportedMediaFormat: 'segment-unsupported-media-format-error', + UnsupportedMediaInitialization: 'unsupported-media-initialization-error', + SegmentSwitchError: 'segment-switch-error', + SegmentExceedsSourceBufferQuota: 'segment-exceeds-source-buffer-quota-error', + SegmentAppendError: 'segment-append-error', + VttLoadError: 'vtt-load-error', + VttCueParsingError: 'vtt-cue-parsing-error', + // Errors used in contrib-ads: + AdsBeforePrerollError: 'ads-before-preroll-error', + AdsPrerollError: 'ads-preroll-error', + AdsMidrollError: 'ads-midroll-error', + AdsPostrollError: 'ads-postroll-error', + AdsMacroReplacementFailed: 'ads-macro-replacement-failed', + AdsResumeContentFailed: 'ads-resume-content-failed', + // Errors used in contrib-eme: + EMEFailedToRequestMediaKeySystemAccess: 'eme-failed-request-media-key-system-access', + EMEFailedToCreateMediaKeys: 'eme-failed-create-media-keys', + EMEFailedToAttachMediaKeysToVideoElement: 'eme-failed-attach-media-keys-to-video', + EMEFailedToCreateMediaKeySession: 'eme-failed-create-media-key-session', + EMEFailedToSetServerCertificate: 'eme-failed-set-server-certificate', + EMEFailedToGenerateLicenseRequest: 'eme-failed-generate-license-request', + EMEFailedToUpdateSessionWithReceivedLicenseKeys: 'eme-failed-update-session', + EMEFailedToCloseSession: 'eme-failed-close-session', + EMEFailedToRemoveKeysFromSession: 'eme-failed-remove-keys', + EMEFailedToLoadSessionBySessionId: 'eme-failed-load-session' + }; + + /** + * @file video.js + * @module videojs + */ + + /** + * Normalize an `id` value by trimming off a leading `#` + * + * @private + * @param {string} id + * A string, maybe with a leading `#`. + * + * @return {string} + * The string, without any leading `#`. + */ + const normalizeId = id => id.indexOf('#') === 0 ? id.slice(1) : id; + + /** + * A callback that is called when a component is ready. Does not have any + * parameters and any callback value will be ignored. See: {@link Component~ReadyCallback} + * + * @callback ReadyCallback + */ + + /** + * The `videojs()` function doubles as the main function for users to create a + * {@link Player} instance as well as the main library namespace. + * + * It can also be used as a getter for a pre-existing {@link Player} instance. + * However, we _strongly_ recommend using `videojs.getPlayer()` for this + * purpose because it avoids any potential for unintended initialization. + * + * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149) + * of our JSDoc template, we cannot properly document this as both a function + * and a namespace, so its function signature is documented here. + * + * #### Arguments + * ##### id + * string|Element, **required** + * + * Video element or video element ID. + * + * ##### options + * Object, optional + * + * Options object for providing settings. + * See: [Options Guide](https://docs.videojs.com/tutorial-options.html). + * + * ##### ready + * {@link Component~ReadyCallback}, optional + * + * A function to be called when the {@link Player} and {@link Tech} are ready. + * + * #### Return Value + * + * The `videojs()` function returns a {@link Player} instance. + * + * @namespace + * + * @borrows AudioTrack as AudioTrack + * @borrows Component.getComponent as getComponent + * @borrows module:events.on as on + * @borrows module:events.one as one + * @borrows module:events.off as off + * @borrows module:events.trigger as trigger + * @borrows EventTarget as EventTarget + * @borrows module:middleware.use as use + * @borrows Player.players as players + * @borrows Plugin.registerPlugin as registerPlugin + * @borrows Plugin.deregisterPlugin as deregisterPlugin + * @borrows Plugin.getPlugins as getPlugins + * @borrows Plugin.getPlugin as getPlugin + * @borrows Plugin.getPluginVersion as getPluginVersion + * @borrows Tech.getTech as getTech + * @borrows Tech.registerTech as registerTech + * @borrows TextTrack as TextTrack + * @borrows VideoTrack as VideoTrack + * + * @param {string|Element} id + * Video element or video element ID. + * + * @param {Object} [options] + * Options object for providing settings. + * See: [Options Guide](https://docs.videojs.com/tutorial-options.html). + * + * @param {ReadyCallback} [ready] + * A function to be called when the {@link Player} and {@link Tech} are + * ready. + * + * @return {Player} + * The `videojs()` function returns a {@link Player|Player} instance. + */ + function videojs(id, options, ready) { + let player = videojs.getPlayer(id); + if (player) { + if (options) { + log.warn(`Player "${id}" is already initialised. Options will not be applied.`); + } + if (ready) { + player.ready(ready); + } + return player; + } + const el = typeof id === 'string' ? $('#' + normalizeId(id)) : id; + if (!isEl(el)) { + throw new TypeError('The element or ID supplied is not valid. (videojs)'); + } + + // document.body.contains(el) will only check if el is contained within that one document. + // This causes problems for elements in iframes. + // Instead, use the element's ownerDocument instead of the global document. + // This will make sure that the element is indeed in the dom of that document. + // Additionally, check that the document in question has a default view. + // If the document is no longer attached to the dom, the defaultView of the document will be null. + // If element is inside Shadow DOM (e.g. is part of a Custom element), ownerDocument.body + // always returns false. Instead, use the Shadow DOM root. + const inShadowDom = 'getRootNode' in el ? el.getRootNode() instanceof window.ShadowRoot : false; + const rootNode = inShadowDom ? el.getRootNode() : el.ownerDocument.body; + if (!el.ownerDocument.defaultView || !rootNode.contains(el)) { + log.warn('The element supplied is not included in the DOM'); + } + options = options || {}; + + // Store a copy of the el before modification, if it is to be restored in destroy() + // If div ingest, store the parent div + if (options.restoreEl === true) { + options.restoreEl = (el.parentNode && el.parentNode.hasAttribute('data-vjs-player') ? el.parentNode : el).cloneNode(true); + } + hooks('beforesetup').forEach(hookFunction => { + const opts = hookFunction(el, merge(options)); + if (!isObject(opts) || Array.isArray(opts)) { + log.error('please return an object in beforesetup hooks'); + return; + } + options = merge(options, opts); + }); + + // We get the current "Player" component here in case an integration has + // replaced it with a custom player. + const PlayerComponent = Component.getComponent('Player'); + player = new PlayerComponent(el, options, ready); + hooks('setup').forEach(hookFunction => hookFunction(player)); + return player; + } + videojs.hooks_ = hooks_; + videojs.hooks = hooks; + videojs.hook = hook; + videojs.hookOnce = hookOnce; + videojs.removeHook = removeHook; + + // Add default styles + if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) { + let style = $('.vjs-styles-defaults'); + if (!style) { + style = createStyleElement('vjs-styles-defaults'); + const head = $('head'); + if (head) { + head.insertBefore(style, head.firstChild); + } + setTextContent(style, ` + .video-js { + width: 300px; + height: 150px; + } + + .vjs-fluid:not(.vjs-audio-only-mode) { + padding-top: 56.25% + } + `); + } + } + + // Run Auto-load players + // You have to wait at least once in case this script is loaded after your + // video in the DOM (weird behavior only with minified version) + autoSetupTimeout(1, videojs); + + /** + * Current Video.js version. Follows [semantic versioning](https://semver.org/). + * + * @type {string} + */ + videojs.VERSION = version; + + /** + * The global options object. These are the settings that take effect + * if no overrides are specified when the player is created. + * + * @type {Object} + */ + videojs.options = Player.prototype.options_; + + /** + * Get an object with the currently created players, keyed by player ID + * + * @return {Object} + * The created players + */ + videojs.getPlayers = () => Player.players; + + /** + * Get a single player based on an ID or DOM element. + * + * This is useful if you want to check if an element or ID has an associated + * Video.js player, but not create one if it doesn't. + * + * @param {string|Element} id + * An HTML element - `<video>`, `<audio>`, or `<video-js>` - + * or a string matching the `id` of such an element. + * + * @return {Player|undefined} + * A player instance or `undefined` if there is no player instance + * matching the argument. + */ + videojs.getPlayer = id => { + const players = Player.players; + let tag; + if (typeof id === 'string') { + const nId = normalizeId(id); + const player = players[nId]; + if (player) { + return player; + } + tag = $('#' + nId); + } else { + tag = id; + } + if (isEl(tag)) { + const { + player, + playerId + } = tag; + + // Element may have a `player` property referring to an already created + // player instance. If so, return that. + if (player || players[playerId]) { + return player || players[playerId]; + } + } + }; + + /** + * Returns an array of all current players. + * + * @return {Array} + * An array of all players. The array will be in the order that + * `Object.keys` provides, which could potentially vary between + * JavaScript engines. + * + */ + videojs.getAllPlayers = () => + // Disposed players leave a key with a `null` value, so we need to make sure + // we filter those out. + Object.keys(Player.players).map(k => Player.players[k]).filter(Boolean); + videojs.players = Player.players; + videojs.getComponent = Component.getComponent; + + /** + * Register a component so it can referred to by name. Used when adding to other + * components, either through addChild `component.addChild('myComponent')` or through + * default children options `{ children: ['myComponent'] }`. + * + * > NOTE: You could also just initialize the component before adding. + * `component.addChild(new MyComponent());` + * + * @param {string} name + * The class name of the component + * + * @param {typeof Component} comp + * The component class + * + * @return {typeof Component} + * The newly registered component + */ + videojs.registerComponent = (name, comp) => { + if (Tech.isTech(comp)) { + log.warn(`The ${name} tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)`); + } + return Component.registerComponent.call(Component, name, comp); + }; + videojs.getTech = Tech.getTech; + videojs.registerTech = Tech.registerTech; + videojs.use = use; + + /** + * An object that can be returned by a middleware to signify + * that the middleware is being terminated. + * + * @type {object} + * @property {object} middleware.TERMINATOR + */ + Object.defineProperty(videojs, 'middleware', { + value: {}, + writeable: false, + enumerable: true + }); + Object.defineProperty(videojs.middleware, 'TERMINATOR', { + value: TERMINATOR, + writeable: false, + enumerable: true + }); + + /** + * A reference to the {@link module:browser|browser utility module} as an object. + * + * @type {Object} + * @see {@link module:browser|browser} + */ + videojs.browser = browser; + + /** + * A reference to the {@link module:obj|obj utility module} as an object. + * + * @type {Object} + * @see {@link module:obj|obj} + */ + videojs.obj = Obj; + + /** + * Deprecated reference to the {@link module:obj.merge|merge function} + * + * @type {Function} + * @see {@link module:obj.merge|merge} + * @deprecated Deprecated and will be removed in 9.0. Please use videojs.obj.merge instead. + */ + videojs.mergeOptions = deprecateForMajor(9, 'videojs.mergeOptions', 'videojs.obj.merge', merge); + + /** + * Deprecated reference to the {@link module:obj.defineLazyProperty|defineLazyProperty function} + * + * @type {Function} + * @see {@link module:obj.defineLazyProperty|defineLazyProperty} + * @deprecated Deprecated and will be removed in 9.0. Please use videojs.obj.defineLazyProperty instead. + */ + videojs.defineLazyProperty = deprecateForMajor(9, 'videojs.defineLazyProperty', 'videojs.obj.defineLazyProperty', defineLazyProperty); + + /** + * Deprecated reference to the {@link module:fn.bind_|fn.bind_ function} + * + * @type {Function} + * @see {@link module:fn.bind_|fn.bind_} + * @deprecated Deprecated and will be removed in 9.0. Please use native Function.prototype.bind instead. + */ + videojs.bind = deprecateForMajor(9, 'videojs.bind', 'native Function.prototype.bind', bind_); + videojs.registerPlugin = Plugin.registerPlugin; + videojs.deregisterPlugin = Plugin.deregisterPlugin; + + /** + * Deprecated method to register a plugin with Video.js + * + * @deprecated Deprecated and will be removed in 9.0. Use videojs.registerPlugin() instead. + * + * @param {string} name + * The plugin name + * + * @param {typeof Plugin|Function} plugin + * The plugin sub-class or function + * + * @return {typeof Plugin|Function} + */ + videojs.plugin = (name, plugin) => { + log.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead'); + return Plugin.registerPlugin(name, plugin); + }; + videojs.getPlugins = Plugin.getPlugins; + videojs.getPlugin = Plugin.getPlugin; + videojs.getPluginVersion = Plugin.getPluginVersion; + + /** + * Adding languages so that they're available to all players. + * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });` + * + * @param {string} code + * The language code or dictionary property + * + * @param {Object} data + * The data values to be translated + * + * @return {Object} + * The resulting language dictionary object + */ + videojs.addLanguage = function (code, data) { + code = ('' + code).toLowerCase(); + videojs.options.languages = merge(videojs.options.languages, { + [code]: data + }); + return videojs.options.languages[code]; + }; + + /** + * A reference to the {@link module:log|log utility module} as an object. + * + * @type {Function} + * @see {@link module:log|log} + */ + videojs.log = log; + videojs.createLogger = createLogger; + + /** + * A reference to the {@link module:time|time utility module} as an object. + * + * @type {Object} + * @see {@link module:time|time} + */ + videojs.time = Time; + + /** + * Deprecated reference to the {@link module:time.createTimeRanges|createTimeRanges function} + * + * @type {Function} + * @see {@link module:time.createTimeRanges|createTimeRanges} + * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.createTimeRanges instead. + */ + videojs.createTimeRange = deprecateForMajor(9, 'videojs.createTimeRange', 'videojs.time.createTimeRanges', createTimeRanges); + + /** + * Deprecated reference to the {@link module:time.createTimeRanges|createTimeRanges function} + * + * @type {Function} + * @see {@link module:time.createTimeRanges|createTimeRanges} + * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.createTimeRanges instead. + */ + videojs.createTimeRanges = deprecateForMajor(9, 'videojs.createTimeRanges', 'videojs.time.createTimeRanges', createTimeRanges); + + /** + * Deprecated reference to the {@link module:time.formatTime|formatTime function} + * + * @type {Function} + * @see {@link module:time.formatTime|formatTime} + * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.format instead. + */ + videojs.formatTime = deprecateForMajor(9, 'videojs.formatTime', 'videojs.time.formatTime', formatTime); + + /** + * Deprecated reference to the {@link module:time.setFormatTime|setFormatTime function} + * + * @type {Function} + * @see {@link module:time.setFormatTime|setFormatTime} + * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.setFormat instead. + */ + videojs.setFormatTime = deprecateForMajor(9, 'videojs.setFormatTime', 'videojs.time.setFormatTime', setFormatTime); + + /** + * Deprecated reference to the {@link module:time.resetFormatTime|resetFormatTime function} + * + * @type {Function} + * @see {@link module:time.resetFormatTime|resetFormatTime} + * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.resetFormat instead. + */ + videojs.resetFormatTime = deprecateForMajor(9, 'videojs.resetFormatTime', 'videojs.time.resetFormatTime', resetFormatTime); + + /** + * Deprecated reference to the {@link module:url.parseUrl|Url.parseUrl function} + * + * @type {Function} + * @see {@link module:url.parseUrl|parseUrl} + * @deprecated Deprecated and will be removed in 9.0. Please use videojs.url.parseUrl instead. + */ + videojs.parseUrl = deprecateForMajor(9, 'videojs.parseUrl', 'videojs.url.parseUrl', parseUrl); + + /** + * Deprecated reference to the {@link module:url.isCrossOrigin|Url.isCrossOrigin function} + * + * @type {Function} + * @see {@link module:url.isCrossOrigin|isCrossOrigin} + * @deprecated Deprecated and will be removed in 9.0. Please use videojs.url.isCrossOrigin instead. + */ + videojs.isCrossOrigin = deprecateForMajor(9, 'videojs.isCrossOrigin', 'videojs.url.isCrossOrigin', isCrossOrigin); + videojs.EventTarget = EventTarget; + videojs.any = any; + videojs.on = on; + videojs.one = one; + videojs.off = off; + videojs.trigger = trigger; + + /** + * A cross-browser XMLHttpRequest wrapper. + * + * @function + * @param {Object} options + * Settings for the request. + * + * @return {XMLHttpRequest|XDomainRequest} + * The request object. + * + * @see https://github.com/Raynos/xhr + */ + videojs.xhr = lib; + videojs.TextTrack = TextTrack; + videojs.AudioTrack = AudioTrack; + videojs.VideoTrack = VideoTrack; + ['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(k => { + videojs[k] = function () { + log.warn(`videojs.${k}() is deprecated; use videojs.dom.${k}() instead`); + return Dom[k].apply(null, arguments); + }; + }); + videojs.computedStyle = deprecateForMajor(9, 'videojs.computedStyle', 'videojs.dom.computedStyle', computedStyle); + + /** + * A reference to the {@link module:dom|DOM utility module} as an object. + * + * @type {Object} + * @see {@link module:dom|dom} + */ + videojs.dom = Dom; + + /** + * A reference to the {@link module:fn|fn utility module} as an object. + * + * @type {Object} + * @see {@link module:fn|fn} + */ + videojs.fn = Fn; + + /** + * A reference to the {@link module:num|num utility module} as an object. + * + * @type {Object} + * @see {@link module:num|num} + */ + videojs.num = Num; + + /** + * A reference to the {@link module:str|str utility module} as an object. + * + * @type {Object} + * @see {@link module:str|str} + */ + videojs.str = Str; + + /** + * A reference to the {@link module:url|URL utility module} as an object. + * + * @type {Object} + * @see {@link module:url|url} + */ + videojs.url = Url; + + // The list of possible error types to occur in video.js + videojs.Error = VjsErrors; + + return videojs; + +})); |