C++ (Cpp) CameraPosition示例

示例#1

文件： CameraControl.cpp 项目： caindove/mozilla-central

/* void takePicture (in jsval aOptions, in nsICameraTakePictureCallback onSuccess, [optional] in nsICameraErrorCallback onError); */
NS_IMETHODIMP nsCameraControl::TakePicture(const JS::Value& aOptions, nsICameraTakePictureCallback* onSuccess, nsICameraErrorCallback* onError, JSContext* cx)
{
  NS_ENSURE_TRUE(onSuccess, NS_ERROR_INVALID_ARG);

  CameraPictureOptions  options;
  CameraSize            size;
  CameraPosition        pos;

  nsresult rv = options.Init(cx, &aOptions);
  NS_ENSURE_SUCCESS(rv, rv);

  rv = size.Init(cx, &options.pictureSize);
  NS_ENSURE_SUCCESS(rv, rv);

  /**
   * Default values, until the dictionary parser can handle them.
   * NaN indicates no value provided.
   */
  pos.latitude = NAN;
  pos.longitude = NAN;
  pos.altitude = NAN;
  pos.timestamp = NAN;
  rv = pos.Init(cx, &options.position);
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr<nsIRunnable> takePictureTask = new TakePictureTask(this, size, options.rotation, options.fileFormat, pos, onSuccess, onError);
  mCameraThread->Dispatch(takePictureTask, NS_DISPATCH_NORMAL);

  return NS_OK;
}

示例#2

文件： DOMCameraControl.cpp 项目： hideakihata/mozilla-central.fgv

/* void takePicture (in jsval aOptions, in nsICameraTakePictureCallback onSuccess, [optional] in nsICameraErrorCallback onError); */
NS_IMETHODIMP
nsDOMCameraControl::TakePicture(const JS::Value& aOptions, nsICameraTakePictureCallback* onSuccess, nsICameraErrorCallback* onError, JSContext* cx)
{
  NS_ENSURE_TRUE(onSuccess, NS_ERROR_INVALID_ARG);

  CameraPictureOptions  options;
  CameraSize            size;
  CameraPosition        pos;

  nsresult rv = options.Init(cx, &aOptions);
  NS_ENSURE_SUCCESS(rv, rv);

  rv = size.Init(cx, &options.pictureSize);
  NS_ENSURE_SUCCESS(rv, rv);

  /**
   * Default values, until the dictionary parser can handle them.
   * NaN indicates no value provided.
   */
  pos.latitude = NAN;
  pos.longitude = NAN;
  pos.altitude = NAN;
  pos.timestamp = NAN;
  rv = pos.Init(cx, &options.position);
  NS_ENSURE_SUCCESS(rv, rv);

  return mCameraControl->TakePicture(size, options.rotation, options.fileFormat, pos, onSuccess, onError);
}