зеркало из https://github.com/mozilla/gecko-dev.git
63 строки
1.8 KiB
C++
63 строки
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_audiochannelservicechild_h__
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#define mozilla_dom_audiochannelservicechild_h__
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#include "nsAutoPtr.h"
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#include "nsISupports.h"
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#include "AudioChannelService.h"
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#include "AudioChannelCommon.h"
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namespace mozilla {
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namespace dom {
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class AudioChannelServiceChild : public AudioChannelService
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{
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public:
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/**
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* Returns the AudioChannelServce singleton or null if the process havn't create it before.
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* Only to be called from main thread.
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*/
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static AudioChannelService* GetAudioChannelService();
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/**
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* Returns the AudioChannelServce singleton.
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* If AudioChannelServce is not exist, create and return new one.
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* Only to be called from main thread.
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*/
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static AudioChannelService* GetOrCreateAudioChannelService();
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static void Shutdown();
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virtual void RegisterAudioChannelAgent(AudioChannelAgent* aAgent,
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AudioChannel aChannel,
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bool aWithVideo);
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virtual void UnregisterAudioChannelAgent(AudioChannelAgent* aAgent);
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/**
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* Return the state to indicate this agent should keep playing/
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* fading volume/muted.
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*/
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virtual AudioChannelState GetState(AudioChannelAgent* aAgent,
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bool aElementHidden);
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virtual void SetDefaultVolumeControlChannel(int32_t aChannel,
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bool aHidden);
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protected:
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AudioChannelServiceChild();
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virtual ~AudioChannelServiceChild();
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};
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} // namespace dom
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} // namespace mozilla
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#endif
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