vendor/contao/core-bundle/src/EventListener/ContaoJsonLdSchemaListener.php line 26

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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\CoreBundle\EventListener;
  15. use Contao\CoreBundle\Event\JsonLdEvent;
  16. use Contao\CoreBundle\Routing\ResponseContext\HtmlHeadBag\HtmlHeadBag;
  17. use Contao\CoreBundle\Routing\ResponseContext\JsonLd\ContaoPageSchema;
  18. use Contao\CoreBundle\Routing\ResponseContext\JsonLd\JsonLdManager;
  20. /**
  21.  * Updates the schema.contao.org schema before rendering it
  22.  * with the current data from the HtmlHeadBag.
  23.  */
  24. class ContaoJsonLdSchemaListener
  25. {
  26.     public function __invoke(JsonLdEvent $event): void
  27.     {
  28.         $responseContext = $event->getResponseContext();
  30.         if (!$responseContext->has(HtmlHeadBag::class) || !$responseContext->has(JsonLdManager::class)) {
  31.             return;
  32.         }
  34.         /** @var JsonLdManager $jsonLdManager */
  35.         $jsonLdManager = $responseContext->get(JsonLdManager::class);
  37.         if (!$jsonLdManager->getGraphForSchema(JsonLdManager::SCHEMA_CONTAO)->has(ContaoPageSchema::class)) {
  38.             return;
  39.         }
  41.         /** @var HtmlHeadBag $htmlHeadBag */
  42.         $htmlHeadBag = $responseContext->get(HtmlHeadBag::class);
  44.         /** @var ContaoPageSchema $schema */
  45.         $schema = $jsonLdManager->getGraphForSchema(JsonLdManager::SCHEMA_CONTAO)->get(ContaoPageSchema::class);
  46.         $schema->updateFromHtmlHeadBag($htmlHeadBag);
  47.     }
  48. }