michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_dom_FMRadio_h
michael@0: #define mozilla_dom_FMRadio_h
michael@0: 
michael@0: #include "AudioChannelAgent.h"
michael@0: #include "FMRadioCommon.h"
michael@0: #include "mozilla/DOMEventTargetHelper.h"
michael@0: #include "mozilla/HalTypes.h"
michael@0: #include "nsCycleCollectionParticipant.h"
michael@0: #include "nsWeakReference.h"
michael@0: 
michael@0: class nsPIDOMWindow;
michael@0: class nsIScriptContext;
michael@0: 
michael@0: BEGIN_FMRADIO_NAMESPACE
michael@0: 
michael@0: class DOMRequest;
michael@0: 
michael@0: class FMRadio MOZ_FINAL : public DOMEventTargetHelper
michael@0:                         , public hal::SwitchObserver
michael@0:                         , public FMRadioEventObserver
michael@0:                         , public nsSupportsWeakReference
michael@0:                         , public nsIAudioChannelAgentCallback
michael@0:                         , public nsIDOMEventListener
michael@0: 
michael@0: {
michael@0:   friend class FMRadioRequest;
michael@0: 
michael@0: public:
michael@0:   FMRadio();
michael@0: 
michael@0:   NS_DECL_ISUPPORTS_INHERITED
michael@0:   NS_DECL_NSIAUDIOCHANNELAGENTCALLBACK
michael@0: 
michael@0:   NS_REALLY_FORWARD_NSIDOMEVENTTARGET(DOMEventTargetHelper)
michael@0: 
michael@0:   void Init(nsPIDOMWindow *aWindow);
michael@0:   void Shutdown();
michael@0: 
michael@0:   /* hal::SwitchObserver */
michael@0:   virtual void Notify(const hal::SwitchEvent& aEvent) MOZ_OVERRIDE;
michael@0:   /* FMRadioEventObserver */
michael@0:   virtual void Notify(const FMRadioEventType& aType) MOZ_OVERRIDE;
michael@0: 
michael@0:   nsPIDOMWindow* GetParentObject() const
michael@0:   {
michael@0:     return GetOwner();
michael@0:   }
michael@0: 
michael@0:   virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
michael@0: 
michael@0:   static bool Enabled();
michael@0: 
michael@0:   bool AntennaAvailable() const;
michael@0: 
michael@0:   Nullable<double> GetFrequency() const;
michael@0: 
michael@0:   double FrequencyUpperBound() const;
michael@0: 
michael@0:   double FrequencyLowerBound() const;
michael@0: 
michael@0:   double ChannelWidth() const;
michael@0: 
michael@0:   already_AddRefed<DOMRequest> Enable(double aFrequency);
michael@0: 
michael@0:   already_AddRefed<DOMRequest> Disable();
michael@0: 
michael@0:   already_AddRefed<DOMRequest> SetFrequency(double aFrequency);
michael@0: 
michael@0:   already_AddRefed<DOMRequest> SeekUp();
michael@0: 
michael@0:   already_AddRefed<DOMRequest> SeekDown();
michael@0: 
michael@0:   already_AddRefed<DOMRequest> CancelSeek();
michael@0: 
michael@0:   IMPL_EVENT_HANDLER(enabled);
michael@0:   IMPL_EVENT_HANDLER(disabled);
michael@0:   IMPL_EVENT_HANDLER(antennaavailablechange);
michael@0:   IMPL_EVENT_HANDLER(frequencychange);
michael@0: 
michael@0:   // nsIDOMEventListener
michael@0:   NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent);
michael@0: 
michael@0: private:
michael@0:   ~FMRadio();
michael@0: 
michael@0:   void SetCanPlay(bool aCanPlay);
michael@0:   void EnableAudioChannelAgent();
michael@0: 
michael@0:   hal::SwitchState mHeadphoneState;
michael@0:   bool mAudioChannelAgentEnabled;
michael@0:   bool mHasInternalAntenna;
michael@0:   bool mIsShutdown;
michael@0: 
michael@0:   nsCOMPtr<nsIAudioChannelAgent> mAudioChannelAgent;
michael@0: };
michael@0: 
michael@0: END_FMRADIO_NAMESPACE
michael@0: 
michael@0: #endif // mozilla_dom_FMRadio_h
michael@0: