Source: ui/mute_button.js

  1. /*! @license
  2.  * Shaka Player
  3.  * Copyright 2016 Google LLC
  4.  * SPDX-License-Identifier: Apache-2.0
  5.  */
  8. goog.provide('shaka.ui.MuteButton');
  10. goog.require('shaka.ads.AdManager');
  11. goog.require('shaka.ui.Controls');
  12. goog.require('shaka.ui.Element');
  13. goog.require('shaka.ui.Enums');
  14. goog.require('shaka.ui.Locales');
  15. goog.require('shaka.ui.Localization');
  16. goog.require('shaka.util.Dom');
  19. /**
  20.  * @extends {shaka.ui.Element}
  21.  * @final
  22.  * @export
  23.  */
  24. shaka.ui.MuteButton = class extends shaka.ui.Element {
  25.   /**
  26.    * @param {!HTMLElement} parent
  27.    * @param {!shaka.ui.Controls} controls
  28.    */
  29.   constructor(parent, controls) {
  30.     super(parent, controls);
  32.     /** @private {!HTMLButtonElement} */
  33.     this.button_ = shaka.util.Dom.createButton();
  34.     this.button_.classList.add('shaka-mute-button');
  35.     this.button_.classList.add('material-icons-round');
  36.     this.button_.classList.add('shaka-tooltip');
  37.     this.parent.appendChild(this.button_);
  38.     this.updateAriaLabel_();
  39.     this.updateIcon_();
  41.     this.eventManager.listen(
  42.         this.localization, shaka.ui.Localization.LOCALE_UPDATED, () => {
  43.           this.updateAriaLabel_();
  44.         });
  46.     this.eventManager.listen(
  47.         this.localization, shaka.ui.Localization.LOCALE_CHANGED, () => {
  48.           this.updateAriaLabel_();
  49.         });
  51.     this.eventManager.listen(this.button_, 'click', () => {
  52.       if (this.ad && this.ad.isLinear()) {
  53.         this.ad.setMuted(!this.ad.isMuted());
  54.       } else {
  55.         this.video.muted = !this.video.muted;
  56.       }
  57.     });
  59.     this.eventManager.listen(this.video, 'volumechange', () => {
  60.       this.updateAriaLabel_();
  61.       this.updateIcon_();
  62.     });
  64.     this.eventManager.listen(this.adManager,
  65.         shaka.ads.AdManager.AD_VOLUME_CHANGED, () => {
  66.           this.updateAriaLabel_();
  67.           this.updateIcon_();
  68.         });
  70.     this.eventManager.listen(this.adManager,
  71.         shaka.ads.AdManager.AD_MUTED, () => {
  72.           this.updateAriaLabel_();
  73.           this.updateIcon_();
  74.         });
  76.     this.eventManager.listen(this.adManager,
  77.         shaka.ads.AdManager.AD_STOPPED, () => {
  78.           // The base class also listens for this event and sets this.ad
  79.           // to null. This is a safeguard in case of a race condition as
  80.           // the label and icon code depends on this.ad being correctly
  81.           // updated at the time it runs.
  82.           this.ad = null;
  83.           this.updateAriaLabel_();
  84.           this.updateIcon_();
  85.         });
  86.   }
  88.   /**
  89.    * @private
  90.    */
  91.   updateAriaLabel_() {
  92.     const LocIds = shaka.ui.Locales.Ids;
  93.     let label;
  94.     if (this.ad) {
  95.       label = this.ad.isMuted() ? LocIds.UNMUTE : LocIds.MUTE;
  96.     } else {
  97.       label = this.video.muted ? LocIds.UNMUTE : LocIds.MUTE;
  98.     }
  100.     this.button_.ariaLabel = this.localization.resolve(label);
  101.   }
  103.   /**
  104.    * @private
  105.    */
  106.   updateIcon_() {
  107.     const Icons = shaka.ui.Enums.MaterialDesignIcons;
  108.     let icon;
  109.     if (this.ad) {
  110.       icon = this.ad.isMuted() ? Icons.UNMUTE : Icons.MUTE;
  111.     } else {
  112.       icon = this.video.muted ? Icons.UNMUTE : Icons.MUTE;
  113.     }
  114.     this.button_.textContent = icon;
  115.   }
  116. };
  119. /**
  120.  * @implements {shaka.extern.IUIElement.Factory}
  121.  * @final
  122.  */
  123. shaka.ui.MuteButton.Factory = class {
  124.   /** @override */
  125.   create(rootElement, controls) {
  126.     return new shaka.ui.MuteButton(rootElement, controls);
  127.   }
  128. };
  130. shaka.ui.Controls.registerElement('mute', new shaka.ui.MuteButton.Factory());