1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/camera/CameraControlImpl.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,133 @@
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 DOM_CAMERA_CAMERACONTROLIMPL_H
1.9 +#define DOM_CAMERA_CAMERACONTROLIMPL_H
1.10 +
1.11 +#include "nsTArray.h"
1.12 +#include "nsWeakPtr.h"
1.13 +#include "mozilla/Attributes.h"
1.14 +#include "mozilla/ReentrantMonitor.h"
1.15 +#include "nsIFile.h"
1.16 +#include "nsProxyRelease.h"
1.17 +#include "AutoRwLock.h"
1.18 +#include "nsIDOMDeviceStorage.h"
1.19 +#include "ICameraControl.h"
1.20 +#include "CameraCommon.h"
1.21 +#include "DeviceStorage.h"
1.22 +#include "DeviceStorageFileDescriptor.h"
1.23 +#include "CameraControlListener.h"
1.24 +
1.25 +namespace mozilla {
1.26 +
1.27 +namespace layers {
1.28 + class Image;
1.29 +}
1.30 +
1.31 +class RecorderProfileManager;
1.32 +
1.33 +class CameraControlImpl : public ICameraControl
1.34 +{
1.35 +public:
1.36 + CameraControlImpl(uint32_t aCameraId);
1.37 + virtual void AddListener(CameraControlListener* aListener) MOZ_OVERRIDE;
1.38 + virtual void RemoveListener(CameraControlListener* aListener) MOZ_OVERRIDE;
1.39 +
1.40 + virtual nsresult Start(const Configuration* aConfig = nullptr) MOZ_OVERRIDE;
1.41 + virtual nsresult Stop() MOZ_OVERRIDE;
1.42 +
1.43 + virtual nsresult SetConfiguration(const Configuration& aConfig) MOZ_OVERRIDE;
1.44 + virtual nsresult StartPreview() MOZ_OVERRIDE;
1.45 + virtual nsresult StopPreview() MOZ_OVERRIDE;
1.46 + virtual nsresult AutoFocus() MOZ_OVERRIDE;
1.47 + virtual nsresult StartFaceDetection() MOZ_OVERRIDE;
1.48 + virtual nsresult StopFaceDetection() MOZ_OVERRIDE;
1.49 + virtual nsresult TakePicture() MOZ_OVERRIDE;
1.50 + virtual nsresult StartRecording(DeviceStorageFileDescriptor* aFileDescriptor,
1.51 + const StartRecordingOptions* aOptions) MOZ_OVERRIDE;
1.52 + virtual nsresult StopRecording() MOZ_OVERRIDE;
1.53 + virtual nsresult ResumeContinuousFocus() MOZ_OVERRIDE;
1.54 +
1.55 + already_AddRefed<RecorderProfileManager> GetRecorderProfileManager();
1.56 + uint32_t GetCameraId() { return mCameraId; }
1.57 +
1.58 + virtual void Shutdown() MOZ_OVERRIDE;
1.59 +
1.60 + // Event handlers called directly from outside this class.
1.61 + void OnShutter();
1.62 + void OnClosed();
1.63 + void OnError(CameraControlListener::CameraErrorContext aContext,
1.64 + CameraControlListener::CameraError aError);
1.65 + void OnAutoFocusMoving(bool aIsMoving);
1.66 +
1.67 +protected:
1.68 + // Event handlers.
1.69 + void OnAutoFocusComplete(bool aAutoFocusSucceeded);
1.70 + void OnFacesDetected(const nsTArray<Face>& aFaces);
1.71 + void OnTakePictureComplete(uint8_t* aData, uint32_t aLength, const nsAString& aMimeType);
1.72 +
1.73 + bool OnNewPreviewFrame(layers::Image* aImage, uint32_t aWidth, uint32_t aHeight);
1.74 + void OnRecorderStateChange(CameraControlListener::RecorderState aState,
1.75 + int32_t aStatus = -1, int32_t aTrackNumber = -1);
1.76 + void OnPreviewStateChange(CameraControlListener::PreviewState aState);
1.77 + void OnHardwareStateChange(CameraControlListener::HardwareState aState);
1.78 + void OnConfigurationChange();
1.79 +
1.80 + // When we create a new CameraThread, we keep a static reference to it so
1.81 + // that multiple CameraControl instances can find and reuse it; but we
1.82 + // don't want that reference to keep the thread object around unnecessarily,
1.83 + // so we make it a weak reference. The strong dynamic references will keep
1.84 + // the thread object alive as needed.
1.85 + static nsWeakPtr sCameraThread;
1.86 + nsCOMPtr<nsIThread> mCameraThread;
1.87 +
1.88 + virtual ~CameraControlImpl();
1.89 +
1.90 + virtual void BeginBatchParameterSet() MOZ_OVERRIDE { }
1.91 + virtual void EndBatchParameterSet() MOZ_OVERRIDE { }
1.92 +
1.93 + // Manage camera event listeners.
1.94 + void AddListenerImpl(already_AddRefed<CameraControlListener> aListener);
1.95 + void RemoveListenerImpl(CameraControlListener* aListener);
1.96 + nsTArray<nsRefPtr<CameraControlListener> > mListeners;
1.97 + PRRWLock* mListenerLock;
1.98 +
1.99 + class ControlMessage;
1.100 + class ListenerMessage;
1.101 +
1.102 + virtual nsresult StartImpl(const Configuration* aConfig = nullptr) = 0;
1.103 + virtual nsresult StopImpl() = 0;
1.104 + virtual nsresult SetConfigurationImpl(const Configuration& aConfig) = 0;
1.105 + virtual nsresult StartPreviewImpl() = 0;
1.106 + virtual nsresult StopPreviewImpl() = 0;
1.107 + virtual nsresult AutoFocusImpl() = 0;
1.108 + virtual nsresult StartFaceDetectionImpl() = 0;
1.109 + virtual nsresult StopFaceDetectionImpl() = 0;
1.110 + virtual nsresult TakePictureImpl() = 0;
1.111 + virtual nsresult StartRecordingImpl(DeviceStorageFileDescriptor* aFileDescriptor,
1.112 + const StartRecordingOptions* aOptions) = 0;
1.113 + virtual nsresult StopRecordingImpl() = 0;
1.114 + virtual nsresult ResumeContinuousFocusImpl() = 0;
1.115 + virtual nsresult PushParametersImpl() = 0;
1.116 + virtual nsresult PullParametersImpl() = 0;
1.117 + virtual already_AddRefed<RecorderProfileManager> GetRecorderProfileManagerImpl() = 0;
1.118 +
1.119 + void OnShutterInternal();
1.120 + void OnClosedInternal();
1.121 +
1.122 + uint32_t mCameraId;
1.123 +
1.124 + CameraControlListener::CameraListenerConfiguration mCurrentConfiguration;
1.125 +
1.126 + CameraControlListener::PreviewState mPreviewState;
1.127 + CameraControlListener::HardwareState mHardwareState;
1.128 +
1.129 +private:
1.130 + CameraControlImpl(const CameraControlImpl&) MOZ_DELETE;
1.131 + CameraControlImpl& operator=(const CameraControlImpl&) MOZ_DELETE;
1.132 +};
1.133 +
1.134 +} // namespace mozilla
1.135 +
1.136 +#endif // DOM_CAMERA_CAMERACONTROLIMPL_H
