Esempi in C++ (Cpp) per HTMLImageElement::GetRequest

Esempio n. 1

File: ImageBitmap.cpp Progetto: Danielzac/gecko-dev

/*
 * The specification doesn't allow to create an ImegeBitmap from a vector image.
 * This function is used to check if the given HTMLImageElement contains a
 * raster image.
 */
static bool
HasRasterImage(HTMLImageElement& aImageEl)
{
  nsresult rv;

  nsCOMPtr<imgIRequest> imgRequest;
  rv = aImageEl.GetRequest(nsIImageLoadingContent::CURRENT_REQUEST,
                           getter_AddRefs(imgRequest));
  if (NS_SUCCEEDED(rv) && imgRequest) {
    nsCOMPtr<imgIContainer> imgContainer;
    rv = imgRequest->GetImage(getter_AddRefs(imgContainer));
    if (NS_SUCCEEDED(rv) && imgContainer &&
        imgContainer->GetType() == imgIContainer::TYPE_RASTER) {
      return true;
    }
  }

  return false;
}