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57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
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/* vim: set ts=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. Only to be called from main
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* thread.
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*
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* @return NS_OK on proper assignment, NS_ERROR_FAILURE otherwise.
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*/
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static AudioChannelService* GetAudioChannelService();
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static void Shutdown();
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virtual void RegisterAudioChannelAgent(AudioChannelAgent* aAgent,
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AudioChannelType aType,
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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(AudioChannelType aType, 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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