Source: ui/element.js

  1. /*! @license
  2.  * Shaka Player
  3.  * Copyright 2016 Google LLC
  4.  * SPDX-License-Identifier: Apache-2.0
  5.  */
  8. goog.provide('shaka.ui.Element');
  10. goog.require('shaka.ads.Utils');
  11. goog.require('shaka.util.EventManager');
  12. goog.requireType('shaka.Player');
  13. goog.requireType('shaka.ui.Controls');
  14. goog.requireType('shaka.ui.Localization');
  17. /**
  18.  * @implements {shaka.extern.IUIElement}
  19.  * @abstract
  20.  * @export
  21.  */
  22. shaka.ui.Element = class {
  23.   /**
  24.    * @param {!HTMLElement} parent
  25.    * @param {!shaka.ui.Controls} controls
  26.    */
  27.   constructor(parent, controls) {
  28.     /**
  29.      * @protected {HTMLElement}
  30.      * @exportInterface
  31.      */
  32.     this.parent = parent;
  34.     /**
  35.      * @protected {shaka.ui.Controls}
  36.      * @exportInterface
  37.      */
  38.     this.controls = controls;
  40.     /**
  41.      * @protected {shaka.util.EventManager}
  42.      * @exportInterface
  43.      */
  44.     this.eventManager = new shaka.util.EventManager();
  46.     /**
  47.      * @protected {shaka.ui.Localization}
  48.      * @exportInterface
  49.      */
  50.     this.localization = this.controls.getLocalization();
  52.     /**
  53.      * @protected {shaka.Player}
  54.      * @exportInterface
  55.      */
  56.     this.player = this.controls.getPlayer();
  58.     /**
  59.      * @protected {HTMLMediaElement}
  60.      * @exportInterface
  61.      */
  62.     this.video = this.controls.getVideo();
  64.     /**
  65.      * @protected {shaka.extern.IAdManager}
  66.      * @exportInterface
  67.      */
  68.     this.adManager = this.player.getAdManager();
  70.     /**
  71.      * @protected {?shaka.extern.IAd}
  72.      * @exportInterface
  73.      */
  74.     this.ad = controls.getAd();
  76.     const AD_STARTED = shaka.ads.Utils.AD_STARTED;
  77.     this.eventManager.listen(this.adManager, AD_STARTED, (e) => {
  78.       this.ad = (/** @type {!Object} */ (e))['ad'];
  79.     });
  81.     const AD_STOPPED = shaka.ads.Utils.AD_STOPPED;
  82.     this.eventManager.listen(this.adManager, AD_STOPPED, () => {
  83.       this.ad = null;
  84.     });
  85.   }
  87.   /**
  88.    * @override
  89.    * @export
  90.    */
  91.   release() {
  92.     this.eventManager.release();
  94.     this.parent = null;
  95.     this.controls = null;
  96.     this.eventManager = null;
  97.     this.localization = null;
  98.     this.player = null;
  99.     this.video = null;
  100.     this.adManager = null;
  101.     this.ad = null;
  102.   }
  103. };