C++ (Cpp) Document::NodeInfoManager Examples

Example #1

File: HTMLImageElement.cpp Project: jasonLaster/gecko-dev

// static
already_AddRefed<HTMLImageElement> HTMLImageElement::Image(
    const GlobalObject& aGlobal, const Optional<uint32_t>& aWidth,
    const Optional<uint32_t>& aHeight, ErrorResult& aError) {
  nsCOMPtr<nsPIDOMWindowInner> win = do_QueryInterface(aGlobal.GetAsSupports());
  Document* doc;
  if (!win || !(doc = win->GetExtantDoc())) {
    aError.Throw(NS_ERROR_FAILURE);
    return nullptr;
  }

  RefPtr<mozilla::dom::NodeInfo> nodeInfo = doc->NodeInfoManager()->GetNodeInfo(
      nsGkAtoms::img, nullptr, kNameSpaceID_XHTML, ELEMENT_NODE);

  RefPtr<HTMLImageElement> img = new HTMLImageElement(nodeInfo.forget());

  if (aWidth.WasPassed()) {
    img->SetWidth(aWidth.Value(), aError);
    if (aError.Failed()) {
      return nullptr;
    }

    if (aHeight.WasPassed()) {
      img->SetHeight(aHeight.Value(), aError);
      if (aError.Failed()) {
        return nullptr;
      }
    }
  }

  return img.forget();
}