@Override
  public String expand(@NotNull DataContext dataContext) {
    VirtualFile file = CommonDataKeys.VIRTUAL_FILE.getData(dataContext);
    if (file == null) {
      return null;
    }
    String fileName = file.getName();
    int index = fileName.indexOf('.');
    return index > 0 ? fileName.substring(0, index) : fileName;
  }
@Override
  public String expand(@NotNull DataContext dataContext)