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127 lines
4.6 KiB
C++
127 lines
4.6 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef DOM_CAMERA_CAMERACONTROLIMPL_H
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#define DOM_CAMERA_CAMERACONTROLIMPL_H
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#include "nsTArray.h"
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#include "nsWeakPtr.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/ReentrantMonitor.h"
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#include "nsIFile.h"
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#include "nsProxyRelease.h"
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#include "AutoRwLock.h"
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#include "nsIDOMDeviceStorage.h"
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#include "ICameraControl.h"
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#include "CameraCommon.h"
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#include "DeviceStorage.h"
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#include "DeviceStorageFileDescriptor.h"
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#include "CameraControlListener.h"
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class DeviceStorageFileDescriptor;
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namespace mozilla {
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namespace layers {
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class Image;
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}
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class RecorderProfileManager;
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class CameraControlImpl : public ICameraControl
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{
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public:
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CameraControlImpl(uint32_t aCameraId);
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virtual void AddListener(CameraControlListener* aListener) MOZ_OVERRIDE;
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virtual void RemoveListener(CameraControlListener* aListener) MOZ_OVERRIDE;
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virtual nsresult Start(const Configuration* aConfig = nullptr) MOZ_OVERRIDE;
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virtual nsresult Stop() MOZ_OVERRIDE;
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virtual nsresult SetConfiguration(const Configuration& aConfig) MOZ_OVERRIDE;
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virtual nsresult StartPreview() MOZ_OVERRIDE;
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virtual nsresult StopPreview() MOZ_OVERRIDE;
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virtual nsresult AutoFocus(bool aCancelExistingCall) MOZ_OVERRIDE;
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virtual nsresult TakePicture() MOZ_OVERRIDE;
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virtual nsresult StartRecording(DeviceStorageFileDescriptor* aFileDescriptor,
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const StartRecordingOptions* aOptions) MOZ_OVERRIDE;
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virtual nsresult StopRecording() MOZ_OVERRIDE;
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already_AddRefed<RecorderProfileManager> GetRecorderProfileManager();
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uint32_t GetCameraId() { return mCameraId; }
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virtual void Shutdown() MOZ_OVERRIDE;
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void OnShutter();
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void OnClosed();
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void OnError(CameraControlListener::CameraErrorContext aContext,
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CameraControlListener::CameraError aError);
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protected:
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// Event handlers.
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void OnAutoFocusComplete(bool aAutoFocusSucceeded);
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void OnTakePictureComplete(uint8_t* aData, uint32_t aLength, const nsAString& aMimeType);
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bool OnNewPreviewFrame(layers::Image* aImage, uint32_t aWidth, uint32_t aHeight);
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void OnRecorderStateChange(CameraControlListener::RecorderState aState,
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int32_t aStatus = -1, int32_t aTrackNumber = -1);
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void OnPreviewStateChange(CameraControlListener::PreviewState aState);
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void OnHardwareStateChange(CameraControlListener::HardwareState aState);
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void OnConfigurationChange();
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// When we create a new CameraThread, we keep a static reference to it so
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// that multiple CameraControl instances can find and reuse it; but we
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// don't want that reference to keep the thread object around unnecessarily,
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// so we make it a weak reference. The strong dynamic references will keep
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// the thread object alive as needed.
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static nsWeakPtr sCameraThread;
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nsCOMPtr<nsIThread> mCameraThread;
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virtual ~CameraControlImpl();
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virtual void BeginBatchParameterSet() MOZ_OVERRIDE { }
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virtual void EndBatchParameterSet() MOZ_OVERRIDE { }
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// Manage camera event listeners.
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void AddListenerImpl(already_AddRefed<CameraControlListener> aListener);
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void RemoveListenerImpl(CameraControlListener* aListener);
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nsTArray<nsRefPtr<CameraControlListener> > mListeners;
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PRRWLock* mListenerLock;
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class ControlMessage;
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class ListenerMessage;
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virtual nsresult StartImpl(const Configuration* aConfig = nullptr) = 0;
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virtual nsresult StopImpl() = 0;
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virtual nsresult SetConfigurationImpl(const Configuration& aConfig) = 0;
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virtual nsresult StartPreviewImpl() = 0;
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virtual nsresult StopPreviewImpl() = 0;
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virtual nsresult AutoFocusImpl(bool aCancelExistingCall) = 0;
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virtual nsresult TakePictureImpl() = 0;
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virtual nsresult StartRecordingImpl(DeviceStorageFileDescriptor* aFileDescriptor,
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const StartRecordingOptions* aOptions) = 0;
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virtual nsresult StopRecordingImpl() = 0;
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virtual nsresult PushParametersImpl() = 0;
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virtual nsresult PullParametersImpl() = 0;
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virtual already_AddRefed<RecorderProfileManager> GetRecorderProfileManagerImpl() = 0;
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void OnShutterInternal();
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void OnClosedInternal();
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uint32_t mCameraId;
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CameraControlListener::CameraListenerConfiguration mCurrentConfiguration;
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CameraControlListener::PreviewState mPreviewState;
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CameraControlListener::HardwareState mHardwareState;
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private:
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CameraControlImpl(const CameraControlImpl&) MOZ_DELETE;
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CameraControlImpl& operator=(const CameraControlImpl&) MOZ_DELETE;
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};
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} // namespace mozilla
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#endif // DOM_CAMERA_CAMERACONTROLIMPL_H
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