gecko-dev/dom/camera/FallbackCameraControl.cpp

148 строки
3.7 KiB
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsDOMClassInfoID.h"
#include "DOMCameraManager.h"
#include "CameraControl.h"
using namespace mozilla;
/**
* Fallback camera control subclass. Can be used as a template for the
* definition of new camera support classes.
*/
class nsFallbackCameraControl : public nsCameraControl
{
public:
nsFallbackCameraControl(uint32_t aCameraId, nsIThread* aCameraThread);
const char* GetParameter(const char* aKey);
const char* GetParameterConstChar(uint32_t aKey);
double GetParameterDouble(uint32_t aKey);
void GetParameter(uint32_t aKey, nsTArray<dom::CameraRegion>& aRegions);
void SetParameter(const char* aKey, const char* aValue);
void SetParameter(uint32_t aKey, const char* aValue);
void SetParameter(uint32_t aKey, double aValue);
void SetParameter(uint32_t aKey, const nsTArray<dom::CameraRegion>& aRegions);
void PushParameters();
protected:
~nsFallbackCameraControl();
nsresult GetPreviewStreamImpl(GetPreviewStreamTask* aGetPreviewStream);
nsresult AutoFocusImpl(AutoFocusTask* aAutoFocus);
nsresult TakePictureImpl(TakePictureTask* aTakePicture);
nsresult StartRecordingImpl(StartRecordingTask* aStartRecording);
nsresult StopRecordingImpl(StopRecordingTask* aStopRecording);
nsresult PushParametersImpl(PushParametersTask* aPushParameters);
nsresult PullParametersImpl(PullParametersTask* aPullParameters);
private:
nsFallbackCameraControl(const nsFallbackCameraControl&) MOZ_DELETE;
nsFallbackCameraControl& operator=(const nsFallbackCameraControl&) MOZ_DELETE;
};
/**
* Stub implemetations of the fallback camera control.
*
* None of these should ever get called--they exist to keep the linker happy,
* and may be used as templates for new camera support classes.
*/
nsFallbackCameraControl::nsFallbackCameraControl(uint32_t aCameraId, nsIThread* aCameraThread)
: nsCameraControl(aCameraId, aCameraThread)
{ }
nsFallbackCameraControl::~nsFallbackCameraControl()
{ }
const char*
nsFallbackCameraControl::GetParameter(const char* aKey)
{
return nullptr;
}
const char*
nsFallbackCameraControl::GetParameterConstChar(uint32_t aKey)
{
return nullptr;
}
double
nsFallbackCameraControl::GetParameterDouble(uint32_t aKey)
{
return NAN;
}
void
nsFallbackCameraControl::GetParameter(uint32_t aKey, nsTArray<dom::CameraRegion>& aRegions)
{
}
void
nsFallbackCameraControl::SetParameter(const char* aKey, const char* aValue)
{
}
void
nsFallbackCameraControl::SetParameter(uint32_t aKey, const char* aValue)
{
}
void
nsFallbackCameraControl::SetParameter(uint32_t aKey, double aValue)
{
}
void
nsFallbackCameraControl::SetParameter(uint32_t aKey, const nsTArray<dom::CameraRegion>& aRegions)
{
}
void
nsFallbackCameraControl::PushParameters()
{
}
nsresult
nsFallbackCameraControl::GetPreviewStreamImpl(GetPreviewStreamTask* aGetPreviewStream)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
nsFallbackCameraControl::AutoFocusImpl(AutoFocusTask* aAutoFocus)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
nsFallbackCameraControl::TakePictureImpl(TakePictureTask* aTakePicture)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
nsFallbackCameraControl::StartRecordingImpl(StartRecordingTask* aStartRecording)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
nsFallbackCameraControl::StopRecordingImpl(StopRecordingTask* aStopRecording)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
nsFallbackCameraControl::PushParametersImpl(PushParametersTask* aPushParameters)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
nsFallbackCameraControl::PullParametersImpl(PullParametersTask* aPullParameters)
{
return NS_ERROR_NOT_IMPLEMENTED;
}