3 namespace Drupal\contextual;
5 use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
6 use Drupal\Core\Render\RendererInterface;
7 use Symfony\Component\DependencyInjection\ContainerInterface;
8 use Symfony\Component\HttpFoundation\JsonResponse;
9 use Symfony\Component\HttpFoundation\Request;
10 use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
13 * Returns responses for Contextual module routes.
15 class ContextualController implements ContainerInjectionInterface {
19 * @var \Drupal\Core\Render\RendererInterface
24 * Constructors a new ContextualController
26 * @param \Drupal\Core\Render\RendererInterface $renderer
29 public function __construct(RendererInterface $renderer) {
30 $this->renderer = $renderer;
36 public static function create(ContainerInterface $container) {
38 $container->get('renderer')
43 * Returns the requested rendered contextual links.
45 * Given a list of contextual links IDs, render them. Hence this must be
46 * robust to handle arbitrary input.
48 * @see contextual_preprocess()
50 * @return \Symfony\Component\HttpFoundation\JsonResponse
53 public function render(Request $request) {
54 $ids = $request->request->get('ids');
56 throw new BadRequestHttpException(t('No contextual ids specified.'));
60 foreach ($ids as $id) {
62 '#type' => 'contextual_links',
63 '#contextual_links' => _contextual_id_to_links($id),
65 $rendered[$id] = $this->renderer->renderRoot($element);
68 return new JsonResponse($rendered);