toolkit/actors/AudioPlaybackParent.sys.mjs

   1 /* vim: set ts=2 sw=2 sts=2 et tw=80: */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 export class AudioPlaybackParent extends JSWindowActorParent {
   7   constructor() {
   8     super();
   9     this._hasAudioPlayback = false;
  10     this._hasBlockMedia = false;
  11   }
  12   receiveMessage(aMessage) {
  13     const browser = this.browsingContext.top.embedderElement;
  14     switch (aMessage.name) {
  15       case "AudioPlayback:Start":
  16         this._hasAudioPlayback = true;
  17         browser.audioPlaybackStarted();
  18         break;
  19       case "AudioPlayback:Stop":
  20         this._hasAudioPlayback = false;
  21         browser.audioPlaybackStopped();
  22         break;
  23       case "AudioPlayback:ActiveMediaBlockStart":
  24         this._hasBlockMedia = true;
  25         browser.activeMediaBlockStarted();
  26         break;
  27       case "AudioPlayback:ActiveMediaBlockStop":
  28         this._hasBlockMedia = false;
  29         browser.activeMediaBlockStopped();
  30         break;
  31     }
  32   }
  33   didDestroy() {
  34     const browser = this.browsingContext.top.embedderElement;
  35     if (browser && this._hasAudioPlayback) {
  36       browser.audioPlaybackStopped();
  37     }
  38     if (browser && this._hasBlockMedia) {
  39       browser.activeMediaBlockStopped();
  40     }
  41   }
  42 }