vendor/kevinpapst/adminlte-bundle/Controller/BreadcrumbController.php line 33

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  1. <?php
  3. /*
  4. * This file is part of the AdminLTE bundle.
  5. *
  6. * For the full copyright and license information, please view the LICENSE
  7. * file that was distributed with this source code.
  8. */
  10. namespace KevinPapst\AdminLTEBundle\Controller;
  12. use KevinPapst\AdminLTEBundle\Event\BreadcrumbMenuEvent;
  13. use KevinPapst\AdminLTEBundle\Event\SidebarMenuEvent;
  14. use KevinPapst\AdminLTEBundle\Model\MenuItemInterface;
  15. use Symfony\Component\HttpFoundation\Request;
  16. use Symfony\Component\HttpFoundation\Response;
  18. /**
  19. * Controller to handle breadcrumb display inside the layout
  20. */
  21. class BreadcrumbController extends EmitterController
  22. {
  23. /**
  24. * Controller Reference action to be called inside the layout.
  25. *
  26. * Triggers the {@link BreadcrumbMenuEvent} to receive the currently active menu chain.
  27. *
  28. * If there are no listeners attached for this event, the return value is an empty response.
  29. *
  30. * @param Request $request
  31. * @return Response
  32. */
  33. public function breadcrumbAction(Request $request): Response
  34. {
  35. if (!$this->hasListener(BreadcrumbMenuEvent::class)) {
  36. return new Response();
  37. }
  39. /** @var SidebarMenuEvent $event */
  40. $event = $this->dispatch(new BreadcrumbMenuEvent($request));
  42. /** @var MenuItemInterface $active */
  43. $active = $event->getActive();
  44. $list = [];
  45. if (null !== $active) {
  46. $list[] = $active;
  47. while (null !== ($item = $active->getActiveChild())) {
  48. $list[] = $item;
  49. $active = $item;
  50. }
  51. }
  53. return $this->render('@AdminLTE/Breadcrumb/breadcrumb.html.twig', [
  54. 'active' => $list,
  55. ]);
  56. }
  57. }