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74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
/* 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_system_AudioChannelManager_h
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#define mozilla_dom_system_AudioChannelManager_h
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#include "mozilla/Hal.h"
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#include "mozilla/HalTypes.h"
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#include "nsDOMEventTargetHelper.h"
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#include "AudioChannelService.h"
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namespace mozilla {
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namespace hal {
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class SwitchEvent;
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typedef Observer<SwitchEvent> SwitchObserver;
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} // namespace hal
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namespace dom {
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namespace system {
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class AudioChannelManager MOZ_FINAL
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: public nsDOMEventTargetHelper
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, public hal::SwitchObserver
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, public nsIDOMEventListener
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{
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public:
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AudioChannelManager();
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virtual ~AudioChannelManager();
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_NSIDOMEVENTLISTENER
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void Notify(const hal::SwitchEvent& aEvent);
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void Init(nsPIDOMWindow* aWindow);
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/**
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* WebIDL Interface
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*/
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nsPIDOMWindow* GetParentObject() const
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{
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return GetOwner();
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}
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aScope) MOZ_OVERRIDE;
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bool Headphones() const
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{
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MOZ_ASSERT(mState != hal::SWITCH_STATE_UNKNOWN);
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return mState != hal::SWITCH_STATE_OFF;
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}
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bool SetVolumeControlChannel(const nsAString& aChannel);
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bool GetVolumeControlChannel(nsAString& aChannel);
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IMPL_EVENT_HANDLER(headphoneschange)
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private:
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void NotifyVolumeControlChannelChanged();
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hal::SwitchState mState;
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AudioChannelType mVolumeChannel;
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};
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} // namespace system
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_system_AudioChannelManager_h
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