139 lines
3.7 KiB
C++
139 lines
3.7 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_CAMERACONTROLLISTENER_H
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#define DOM_CAMERA_CAMERACONTROLLISTENER_H
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#include <stdint.h>
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#include "ICameraControl.h"
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namespace mozilla {
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namespace dom {
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class BlobImpl;
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} // namespace dom
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namespace layers {
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class Image;
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} // namespace layers
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class CameraControlListener
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{
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public:
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CameraControlListener()
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{
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MOZ_COUNT_CTOR(CameraControlListener);
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}
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protected:
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// Protected destructor, to discourage deletion outside of Release():
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virtual ~CameraControlListener()
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{
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MOZ_COUNT_DTOR(CameraControlListener);
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}
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(CameraControlListener);
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enum HardwareState
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{
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kHardwareUninitialized,
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kHardwareClosed,
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kHardwareOpen,
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kHardwareOpenFailed
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};
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// aReason:
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// NS_OK : state change was expected and normal;
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// NS_ERROR_FAILURE : one or more system-level components failed and
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// the camera was closed;
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// NS_ERROR_NOT_AVAILABLE : the hardware is in use by another process
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// and cannot be acquired, or another process
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// was given access to the camera hardware.
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virtual void OnHardwareStateChange(HardwareState aState, nsresult aReason) { }
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enum PreviewState
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{
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kPreviewStopped,
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kPreviewPaused,
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kPreviewStarted
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};
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virtual void OnPreviewStateChange(PreviewState aState) { }
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enum RecorderState
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{
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kRecorderStopped,
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kRecorderStarted,
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kRecorderPaused,
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kRecorderResumed,
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kPosterCreated,
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kPosterFailed,
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#ifdef MOZ_B2G_CAMERA
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kFileSizeLimitReached,
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kVideoLengthLimitReached,
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kTrackCompleted,
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kTrackFailed,
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kMediaRecorderFailed,
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kMediaServerFailed
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#endif
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};
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enum { kNoTrackNumber = -1 };
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virtual void OnRecorderStateChange(RecorderState aState, int32_t aStatus, int32_t aTrackNum) { }
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virtual void OnShutter() { }
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virtual void OnRateLimitPreview(bool aLimit) { }
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virtual bool OnNewPreviewFrame(layers::Image* aFrame, uint32_t aWidth, uint32_t aHeight)
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{
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return false;
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}
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class CameraListenerConfiguration : public ICameraControl::Configuration
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{
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public:
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uint32_t mMaxMeteringAreas;
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uint32_t mMaxFocusAreas;
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};
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virtual void OnConfigurationChange(const CameraListenerConfiguration& aConfiguration) { }
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virtual void OnAutoFocusComplete(bool aAutoFocusSucceeded) { }
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virtual void OnAutoFocusMoving(bool aIsMoving) { }
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virtual void OnTakePictureComplete(const uint8_t* aData, uint32_t aLength, const nsAString& aMimeType) { }
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virtual void OnFacesDetected(const nsTArray<ICameraControl::Face>& aFaces) { }
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virtual void OnPoster(dom::BlobImpl* aBlobImpl) { }
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enum UserContext
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{
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kInStartCamera,
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kInStopCamera,
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kInAutoFocus,
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kInStartFaceDetection,
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kInStopFaceDetection,
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kInTakePicture,
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kInStartRecording,
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kInStopRecording,
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kInPauseRecording,
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kInResumeRecording,
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kInSetConfiguration,
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kInStartPreview,
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kInStopPreview,
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kInSetPictureSize,
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kInSetThumbnailSize,
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kInResumeContinuousFocus,
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kInUnspecified
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};
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// Error handler for problems arising due to user-initiated actions.
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virtual void OnUserError(UserContext aContext, nsresult aError) { }
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enum SystemContext
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{
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kSystemService
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};
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// Error handler for problems arising due to system failures, not triggered
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// by something the CameraControl API user did.
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virtual void OnSystemError(SystemContext aContext, nsresult aError) { }
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};
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} // namespace mozilla
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#endif // DOM_CAMERA_CAMERACONTROLLISTENER_H
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