firefox-main/toolkit/actors/AudioPlaybackChild.sys.mjs (file symbol)

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
export class AudioPlaybackChild extends JSWindowActorChild {
observe(subject, topic, data) {
if (topic === "audio-playback") {
let name = "AudioPlayback:";
if (data === "activeMediaBlockStart") {
name += "ActiveMediaBlockStart";
} else if (data === "activeMediaBlockStop") {
name += "ActiveMediaBlockStop";
} else {
// TODO: The "active"/"inactive" data values previously drove
// DOMAudioPlaybackStarted/Stopped in the parent; that path is now
// replaced by the MediaController onaudiblechange event. The remaining
// media-block messages and the whole AudioPlayback actor will be
// removed in a follow-up.
return;
}
this.sendAsyncMessage(name);
}
}
}