michael@0: /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
michael@0: /* vim: set ts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_dom_fmradiochild_h__
michael@0: #define mozilla_dom_fmradiochild_h__
michael@0: 
michael@0: #include "FMRadioCommon.h"
michael@0: #include "FMRadioService.h"
michael@0: #include "mozilla/dom/PFMRadioChild.h"
michael@0: #include "mozilla/StaticPtr.h"
michael@0: 
michael@0: BEGIN_FMRADIO_NAMESPACE
michael@0: 
michael@0: /**
michael@0:  * FMRadioChild plays two roles:
michael@0:  *   - Kind of proxy of FMRadioService
michael@0:  *     Redirect all the requests  coming from web content to FMRadioService
michael@0:  *     in parent through IPC channel.
michael@0:  *   - Child Actor of PFMRadio
michael@0:  *     IPC channel to transfer the requests.
michael@0:  */
michael@0: class FMRadioChild MOZ_FINAL : public IFMRadioService
michael@0:                              , public PFMRadioChild
michael@0: {
michael@0: public:
michael@0:   static FMRadioChild* Singleton();
michael@0:   ~FMRadioChild();
michael@0: 
michael@0:   void SendRequest(FMRadioReplyRunnable* aReplyRunnable,
michael@0:                    FMRadioRequestArgs aArgs);
michael@0: 
michael@0:   /* IFMRadioService */
michael@0:   virtual bool IsEnabled() const MOZ_OVERRIDE;
michael@0:   virtual double GetFrequency() const MOZ_OVERRIDE;
michael@0:   virtual double GetFrequencyUpperBound() const MOZ_OVERRIDE;
michael@0:   virtual double GetFrequencyLowerBound() const MOZ_OVERRIDE;
michael@0:   virtual double GetChannelWidth() const MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void Enable(double aFrequency,
michael@0:                       FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
michael@0:   virtual void Disable(FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
michael@0:   virtual void SetFrequency(double frequency,
michael@0:                             FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
michael@0:   virtual void Seek(mozilla::hal::FMRadioSeekDirection aDirection,
michael@0:                     FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
michael@0:   virtual void CancelSeek(FMRadioReplyRunnable* aReplyRunnable) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void AddObserver(FMRadioEventObserver* aObserver) MOZ_OVERRIDE;
michael@0:   virtual void RemoveObserver(FMRadioEventObserver* aObserver) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual void EnableAudio(bool aAudioEnabled) MOZ_OVERRIDE;
michael@0: 
michael@0:   /* PFMRadioChild */
michael@0:   virtual bool
michael@0:   Recv__delete__() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual bool
michael@0:   RecvNotifyFrequencyChanged(const double& aFrequency) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual bool
michael@0:   RecvNotifyEnabledChanged(const bool& aEnabled,
michael@0:                            const double& aFrequency) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual PFMRadioRequestChild*
michael@0:   AllocPFMRadioRequestChild(const FMRadioRequestArgs& aArgs) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual bool
michael@0:   DeallocPFMRadioRequestChild(PFMRadioRequestChild* aActor) MOZ_OVERRIDE;
michael@0: 
michael@0: private:
michael@0:   FMRadioChild();
michael@0: 
michael@0:   void Init();
michael@0: 
michael@0:   inline void NotifyFMRadioEvent(FMRadioEventType aType);
michael@0: 
michael@0:   bool mEnabled;
michael@0:   double mFrequency;
michael@0:   double mUpperBound;
michael@0:   double mLowerBound;
michael@0:   double mChannelWidth;
michael@0: 
michael@0:   FMRadioEventObserverList mObserverList;
michael@0: 
michael@0: private:
michael@0:   static StaticAutoPtr<FMRadioChild> sFMRadioChild;
michael@0: };
michael@0: 
michael@0: END_FMRADIO_NAMESPACE
michael@0: 
michael@0: #endif // mozilla_dom_fmradiochild_h__
michael@0: