video.js/core.es.js

An HTML5 video player that supports HLS and DASH with a common API and skin.

/**
 * @license
 * Video.js 8.21.0 <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>
 */

import window from 'global/window';
import document$1 from 'global/document';
import XHR from '@videojs/xhr';
import vtt from 'videojs-vtt.js';

var version = "8.21.0";

/**
 * 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$1) {
    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.
   */
  function log(...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 `mylogger = 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 = 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.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;

/**
 * Whether or not this is a Chromecast receiver application.
 *
 * @static
 * @type {Boolean}
 */
const IS_CHROMECAST_RECEIVER = Boolean(window.cast && window.cast.framework && window.cast.framework.CastReceiverContext);

/**
 * 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; },
  IS_CHROMECAST_RECEIVER: IS_CHROMECAST_RECEIVER,
  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$1 === 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$1[method](null);
    }
    if (isNonBlankString(context)) {
      context = document$1.querySelector(context);
    }
    const ctx = isEl(context) ? context : document$1;
    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$1.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 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`, but not removed. If `false`, the `classToToggle` will be removed from
 *           the `element`, but not added. 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|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$1.body.focus();
  document$1.onselectstart = function () {
    return false;
  };
}

/**
 * Turn off text selection blocking.
 */
function unblockTextSelection() {
  document$1.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$1[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];
      }
      if (item.assignedSlot && item.assignedSlot.parentElement && window.WebKitCSSMatrix) {
        const transformValue = window.getComputedStyle(item.assignedSlot.parentElement).transform;
        const matrix = new window.WebKitCSSMatrix(transformValue);
        translated.x += matrix.m41;
        translated.y += matrix.m42;
      }
      item = item.parentNode || item.host;
    }
  }
  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$1.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;
  }

  // MacOS Sonoma trackpad when "tap to click enabled"
  if (event.type === 'mousedown' && 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$1.styleSheets].forEach(styleSheet => {
    try {
      const cssRules = [...styleSheet.cssRules].map(rule => rule.cssText).join('');
      const style = document$1.createElement('style');
      style.textContent = cssRules;
      win.document.head.appendChild(style);
    } catch (e) {
      const link = document$1.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,