/**
* Render nothing but with a layout
*
* @param String $text Optional nothing text
* @return String Rendered output
*/
public function render_nothing($text = '')
{
if ($this->layout) {
$factory = $this->get_template_factory();
$layout = $factory->open($this->layout);
$layout->content_for_layout = $text;
$text = $layout->render();
}
return parent::render_text($text);
}
