vendor/contao/news-bundle/src/EventListener/PreviewUrlConvertListener.php line 36

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  1. <?php
  3. declare(strict_types=1);
  5. /*
  6.  * This file is part of Contao.
  7.  *
  8.  * (c) Leo Feyer
  9.  *
  10.  * @license LGPL-3.0-or-later
  11.  */
  13. namespace Contao\NewsBundle\EventListener;
  15. use Contao\CoreBundle\Event\PreviewUrlConvertEvent;
  16. use Contao\CoreBundle\Framework\ContaoFramework;
  17. use Contao\News;
  18. use Contao\NewsModel;
  19. use Symfony\Component\HttpFoundation\Request;
  21. /**
  22.  * @internal
  23.  */
  24. class PreviewUrlConvertListener
  25. {
  26.     private $framework;
  28.     public function __construct(ContaoFramework $framework)
  29.     {
  30.         $this->framework = $framework;
  31.     }
  33.     /**
  34.      * Adds the front end preview URL to the event.
  35.      */
  36.     public function __invoke(PreviewUrlConvertEvent $event): void
  37.     {
  38.         if (!$this->framework->isInitialized()) {
  39.             return;
  40.         }
  42.         $request = $event->getRequest();
  44.         if (null === $request || null === ($news = $this->getNewsModel($request))) {
  45.             return;
  46.         }
  48.         /** @var News $newsAdapter */
  49.         $newsAdapter = $this->framework->getAdapter(News::class);
  51.         $event->setUrl($newsAdapter->generateNewsUrl($news, false, true));
  52.     }
  54.     private function getNewsModel(Request $request): ?NewsModel
  55.     {
  56.         if (!$request->query->has('news')) {
  57.             return null;
  58.         }
  60.         /** @var NewsModel $adapter */
  61.         $adapter = $this->framework->getAdapter(NewsModel::class);
  63.         return $adapter->findByPk($request->query->get('news'));
  64.     }
  65. }