aleph1.co.uk Git - yaffs-website/blob - node_modules/video.js/es5/tech/loader.js

   1 'use strict';
   2
   3 exports.__esModule = true;
   4
   5 var _component = require('../component.js');
   6
   7 var _component2 = _interopRequireDefault(_component);
   8
   9 var _tech = require('./tech.js');
  10
  11 var _tech2 = _interopRequireDefault(_tech);
  12
  13 var _toTitleCase = require('../utils/to-title-case.js');
  14
  15 var _toTitleCase2 = _interopRequireDefault(_toTitleCase);
  16
  17 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
  18
  19 function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  20
  21 function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
  22
  23 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
  24                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 * @file loader.js
  25                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 */
  26
  27
  28 /**
  29  * The `MediaLoader` is the `Component` that decides which playback technology to load
  30  * when a player is initialized.
  31  *
  32  * @extends Component
  33  */
  34 var MediaLoader = function (_Component) {
  35   _inherits(MediaLoader, _Component);
  36
  37   /**
  38    * Create an instance of this class.
  39    *
  40    * @param {Player} player
  41    *        The `Player` that this class should attach to.
  42    *
  43    * @param {Object} [options]
  44    *        The key/value stroe of player options.
  45    *
  46    * @param {Component~ReadyCallback} [ready]
  47    *        The function that is run when this component is ready.
  48    */
  49   function MediaLoader(player, options, ready) {
  50     _classCallCheck(this, MediaLoader);
  51
  52     // If there are no sources when the player is initialized,
  53     // load the first supported playback technology.
  54
  55     var _this = _possibleConstructorReturn(this, _Component.call(this, player, options, ready));
  56
  57     if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {
  58       for (var i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {
  59         var techName = (0, _toTitleCase2['default'])(j[i]);
  60         var tech = _tech2['default'].getTech(techName);
  61
  62         // Support old behavior of techs being registered as components.
  63         // Remove once that deprecated behavior is removed.
  64         if (!techName) {
  65           tech = _component2['default'].getComponent(techName);
  66         }
  67
  68         // Check if the browser supports this technology
  69         if (tech && tech.isSupported()) {
  70           player.loadTech_(techName);
  71           break;
  72         }
  73       }
  74     } else {
  75       // Loop through playback technologies (HTML5, Flash) and check for support.
  76       // Then load the best source.
  77       // A few assumptions here:
  78       //   All playback technologies respect preload false.
  79       player.src(options.playerOptions.sources);
  80     }
  81     return _this;
  82   }
  83
  84   return MediaLoader;
  85 }(_component2['default']);
  86
  87 _component2['default'].registerComponent('MediaLoader', MediaLoader);
  88 exports['default'] = MediaLoader;