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38 lines
1.4 KiB
Plaintext
38 lines
1.4 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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interface AudioChannelManager : EventTarget {
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/**
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* Indicates whether the headphones are plugged in or not.
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*/
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readonly attribute boolean headphones;
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/**
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* Fired when the headphones are plugged or unplugged.
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*
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* When the headphones are unplugged, we may start playing audio through the
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* system's speakers. Similarly, when headphones are plugged in, we may
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* switch audio from speakers to headphones.
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*
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* If audio is currently playing in this window or in one of its children, we
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* will fire this event before we switch the audio output from headphones to
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* speakers (or vice versa). This allows you to, for example, pause your
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* window's audio when the headphones are unplugged.
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*/
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attribute EventHandler onheadphoneschange;
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/**
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* Indicates which audio channel is used to adjust volume when pressing HW
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* volume keys.
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*/
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attribute DOMString volumeControlChannel;
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[Pure, Cached, Throws,
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Pref="dom.mozBrowserFramesEnabled",
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CheckAnyPermissions="system-app-only-audio-channels-in-app"]
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readonly attribute sequence<BrowserElementAudioChannel> allowedAudioChannels;
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};
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