1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/system/gonk/AudioChannelManager.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,76 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.6 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#ifndef mozilla_dom_system_AudioChannelManager_h
1.9 +#define mozilla_dom_system_AudioChannelManager_h
1.10 +
1.11 +#include "mozilla/DOMEventTargetHelper.h"
1.12 +#include "mozilla/Hal.h"
1.13 +#include "mozilla/HalTypes.h"
1.14 +#include "AudioChannelService.h"
1.15 +
1.16 +namespace mozilla {
1.17 +namespace hal {
1.18 +class SwitchEvent;
1.19 +typedef Observer<SwitchEvent> SwitchObserver;
1.20 +} // namespace hal
1.21 +
1.22 +namespace dom {
1.23 +namespace system {
1.24 +
1.25 +class AudioChannelManager MOZ_FINAL
1.26 + : public DOMEventTargetHelper
1.27 + , public hal::SwitchObserver
1.28 + , public nsIDOMEventListener
1.29 +{
1.30 +public:
1.31 + AudioChannelManager();
1.32 + virtual ~AudioChannelManager();
1.33 +
1.34 + NS_DECL_ISUPPORTS_INHERITED
1.35 + NS_DECL_NSIDOMEVENTLISTENER
1.36 +
1.37 + void Notify(const hal::SwitchEvent& aEvent);
1.38 +
1.39 + void Init(nsPIDOMWindow* aWindow);
1.40 +
1.41 + /**
1.42 + * WebIDL Interface
1.43 + */
1.44 +
1.45 + nsPIDOMWindow* GetParentObject() const
1.46 + {
1.47 + return GetOwner();
1.48 + }
1.49 +
1.50 + virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
1.51 +
1.52 + bool Headphones() const
1.53 + {
1.54 + // Bug 929139 - Remove the assert check for SWITCH_STATE_UNKNOWN.
1.55 + // If any devices (ex: emulator) didn't have the corresponding sys node for
1.56 + // headset switch state then GonkSwitch will report the unknown state.
1.57 + // So it is possible to get unknown state here.
1.58 + return mState != hal::SWITCH_STATE_OFF &&
1.59 + mState != hal::SWITCH_STATE_UNKNOWN;
1.60 + }
1.61 +
1.62 + bool SetVolumeControlChannel(const nsAString& aChannel);
1.63 +
1.64 + bool GetVolumeControlChannel(nsAString& aChannel);
1.65 +
1.66 + IMPL_EVENT_HANDLER(headphoneschange)
1.67 +
1.68 +private:
1.69 + void NotifyVolumeControlChannelChanged();
1.70 +
1.71 + hal::SwitchState mState;
1.72 + int32_t mVolumeChannel;
1.73 +};
1.74 +
1.75 +} // namespace system
1.76 +} // namespace dom
1.77 +} // namespace mozilla
1.78 +
1.79 +#endif // mozilla_dom_system_AudioChannelManager_h
