C++ (Cpp) HTMLInputElement::HasAttr Examples

Example #1

File: nsFileControlFrame.cpp Project: MichaelKohler/gecko-dev

nsresult
nsFileControlFrame::DnDListener::GetBlobImplForWebkitDirectory(nsIDOMFileList* aFileList,
                                                               BlobImpl** aBlobImpl)
{
  *aBlobImpl = nullptr;

  HTMLInputElement* inputElement =
    HTMLInputElement::FromContent(mFrame->GetContent());
  bool webkitDirPicker =
    Preferences::GetBool("dom.webkitBlink.dirPicker.enabled", false) &&
    inputElement->HasAttr(kNameSpaceID_None, nsGkAtoms::webkitdirectory);
  if (!webkitDirPicker) {
    return NS_OK;
  }

  if (!aFileList) {
    return NS_ERROR_FAILURE;
  }

  FileList* files = static_cast<FileList*>(aFileList);
  // webkitdirectory doesn't care about the length of the file list but
  // only about the first item on it.
  uint32_t len = files->Length();
  if (len) {
    File* file = files->Item(0);
    if (file) {
      BlobImpl* impl = file->Impl();
      if (impl && impl->IsDirectory()) {
        RefPtr<BlobImpl> retVal = impl;
        retVal.swap(*aBlobImpl);
        return NS_OK;
      }
    }
  }

  return NS_ERROR_FAILURE;
}