public function getDiaporamaHtmlAction($shortcode)
{
$width = $this->getRequest()->query->get('width');
$height = $this->getRequest()->query->get('height');
$event = new DiaporamaHtmlEvent();
$event->setShortcode($shortcode);
$event->setImageWidth($width);
$event->setImageHeight($height);
$this->dispatch(DiaporamaEvents::DIAPORAMA_HTML, $event);
return new Response($event->getDiaporamaHtml());
}