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 DOM_CAMERA_CAMERACONTROLIMPL_H
michael@0: #define DOM_CAMERA_CAMERACONTROLIMPL_H
michael@0: 
michael@0: #include "nsTArray.h"
michael@0: #include "nsWeakPtr.h"
michael@0: #include "mozilla/Attributes.h"
michael@0: #include "mozilla/ReentrantMonitor.h"
michael@0: #include "nsIFile.h"
michael@0: #include "nsProxyRelease.h"
michael@0: #include "AutoRwLock.h"
michael@0: #include "nsIDOMDeviceStorage.h"
michael@0: #include "ICameraControl.h"
michael@0: #include "CameraCommon.h"
michael@0: #include "DeviceStorage.h"
michael@0: #include "DeviceStorageFileDescriptor.h"
michael@0: #include "CameraControlListener.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: namespace layers {
michael@0:   class Image;
michael@0: }
michael@0: 
michael@0: class RecorderProfileManager;
michael@0: 
michael@0: class CameraControlImpl : public ICameraControl
michael@0: {
michael@0: public:
michael@0:   CameraControlImpl(uint32_t aCameraId);
michael@0:   virtual void AddListener(CameraControlListener* aListener) MOZ_OVERRIDE;
michael@0:   virtual void RemoveListener(CameraControlListener* aListener) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsresult Start(const Configuration* aConfig = nullptr) MOZ_OVERRIDE;
michael@0:   virtual nsresult Stop() MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsresult SetConfiguration(const Configuration& aConfig) MOZ_OVERRIDE;
michael@0:   virtual nsresult StartPreview() MOZ_OVERRIDE;
michael@0:   virtual nsresult StopPreview() MOZ_OVERRIDE;
michael@0:   virtual nsresult AutoFocus() MOZ_OVERRIDE;
michael@0:   virtual nsresult StartFaceDetection() MOZ_OVERRIDE;
michael@0:   virtual nsresult StopFaceDetection() MOZ_OVERRIDE;
michael@0:   virtual nsresult TakePicture() MOZ_OVERRIDE;
michael@0:   virtual nsresult StartRecording(DeviceStorageFileDescriptor* aFileDescriptor,
michael@0:                                   const StartRecordingOptions* aOptions) MOZ_OVERRIDE;
michael@0:   virtual nsresult StopRecording() MOZ_OVERRIDE;
michael@0:   virtual nsresult ResumeContinuousFocus() MOZ_OVERRIDE;
michael@0: 
michael@0:   already_AddRefed<RecorderProfileManager> GetRecorderProfileManager();
michael@0:   uint32_t GetCameraId() { return mCameraId; }
michael@0: 
michael@0:   virtual void Shutdown() MOZ_OVERRIDE;
michael@0: 
michael@0:   // Event handlers called directly from outside this class.
michael@0:   void OnShutter();
michael@0:   void OnClosed();
michael@0:   void OnError(CameraControlListener::CameraErrorContext aContext,
michael@0:                CameraControlListener::CameraError aError);
michael@0:   void OnAutoFocusMoving(bool aIsMoving);
michael@0: 
michael@0: protected:
michael@0:   // Event handlers.
michael@0:   void OnAutoFocusComplete(bool aAutoFocusSucceeded);
michael@0:   void OnFacesDetected(const nsTArray<Face>& aFaces);
michael@0:   void OnTakePictureComplete(uint8_t* aData, uint32_t aLength, const nsAString& aMimeType);
michael@0: 
michael@0:   bool OnNewPreviewFrame(layers::Image* aImage, uint32_t aWidth, uint32_t aHeight);
michael@0:   void OnRecorderStateChange(CameraControlListener::RecorderState aState,
michael@0:                              int32_t aStatus = -1, int32_t aTrackNumber = -1);
michael@0:   void OnPreviewStateChange(CameraControlListener::PreviewState aState);
michael@0:   void OnHardwareStateChange(CameraControlListener::HardwareState aState);
michael@0:   void OnConfigurationChange();
michael@0: 
michael@0:   // When we create a new CameraThread, we keep a static reference to it so
michael@0:   // that multiple CameraControl instances can find and reuse it; but we
michael@0:   // don't want that reference to keep the thread object around unnecessarily,
michael@0:   // so we make it a weak reference. The strong dynamic references will keep
michael@0:   // the thread object alive as needed.
michael@0:   static nsWeakPtr sCameraThread;
michael@0:   nsCOMPtr<nsIThread> mCameraThread;
michael@0: 
michael@0:   virtual ~CameraControlImpl();
michael@0: 
michael@0:   virtual void BeginBatchParameterSet() MOZ_OVERRIDE { }
michael@0:   virtual void EndBatchParameterSet() MOZ_OVERRIDE { }
michael@0: 
michael@0:   // Manage camera event listeners.
michael@0:   void AddListenerImpl(already_AddRefed<CameraControlListener> aListener);
michael@0:   void RemoveListenerImpl(CameraControlListener* aListener);
michael@0:   nsTArray<nsRefPtr<CameraControlListener> > mListeners;
michael@0:   PRRWLock* mListenerLock;
michael@0: 
michael@0:   class ControlMessage;
michael@0:   class ListenerMessage;
michael@0: 
michael@0:   virtual nsresult StartImpl(const Configuration* aConfig = nullptr) = 0;
michael@0:   virtual nsresult StopImpl() = 0;
michael@0:   virtual nsresult SetConfigurationImpl(const Configuration& aConfig) = 0;
michael@0:   virtual nsresult StartPreviewImpl() = 0;
michael@0:   virtual nsresult StopPreviewImpl() = 0;
michael@0:   virtual nsresult AutoFocusImpl() = 0;
michael@0:   virtual nsresult StartFaceDetectionImpl() = 0;
michael@0:   virtual nsresult StopFaceDetectionImpl() = 0;
michael@0:   virtual nsresult TakePictureImpl() = 0;
michael@0:   virtual nsresult StartRecordingImpl(DeviceStorageFileDescriptor* aFileDescriptor,
michael@0:                                       const StartRecordingOptions* aOptions) = 0;
michael@0:   virtual nsresult StopRecordingImpl() = 0;
michael@0:   virtual nsresult ResumeContinuousFocusImpl() = 0;
michael@0:   virtual nsresult PushParametersImpl() = 0;
michael@0:   virtual nsresult PullParametersImpl() = 0;
michael@0:   virtual already_AddRefed<RecorderProfileManager> GetRecorderProfileManagerImpl() = 0;
michael@0: 
michael@0:   void OnShutterInternal();
michael@0:   void OnClosedInternal();
michael@0: 
michael@0:   uint32_t mCameraId;
michael@0: 
michael@0:   CameraControlListener::CameraListenerConfiguration mCurrentConfiguration;
michael@0: 
michael@0:   CameraControlListener::PreviewState   mPreviewState;
michael@0:   CameraControlListener::HardwareState  mHardwareState;
michael@0: 
michael@0: private:
michael@0:   CameraControlImpl(const CameraControlImpl&) MOZ_DELETE;
michael@0:   CameraControlImpl& operator=(const CameraControlImpl&) MOZ_DELETE;
michael@0: };
michael@0: 
michael@0: } // namespace mozilla
michael@0: 
michael@0: #endif // DOM_CAMERA_CAMERACONTROLIMPL_H