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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\Core\EventSubscriber\HtmlResponseSubscriber. | |
| */ | |
| namespace Drupal\Core\EventSubscriber; | |
| use Drupal\Core\Render\HtmlResponse; | |
| use Drupal\Core\Render\AttachmentsResponseProcessorInterface; | |
| use Symfony\Component\HttpKernel\Event\FilterResponseEvent; | |
| use Symfony\Component\HttpKernel\KernelEvents; | |
| use Symfony\Component\EventDispatcher\EventSubscriberInterface; | |
| /** | |
| * Response subscriber to handle HTML responses. | |
| */ | |
| class HtmlResponseSubscriber implements EventSubscriberInterface { | |
| /** | |
| * The HTML response attachments processor service. | |
| * | |
| * @var \Drupal\Core\Render\AttachmentsResponseProcessorInterface | |
| */ | |
| protected $htmlResponseAttachmentsProcessor; | |
| /** | |
| * Constructs a HtmlResponseSubscriber object. | |
| * | |
| * @param \Drupal\Core\Render\AttachmentsResponseProcessorInterface $html_response_attachments_processor | |
| * The HTML response attachments processor service. | |
| */ | |
| public function __construct(AttachmentsResponseProcessorInterface $html_response_attachments_processor) { | |
| $this->htmlResponseAttachmentsProcessor = $html_response_attachments_processor; | |
| } | |
| /** | |
| * Processes attachments for HtmlResponse responses. | |
| * | |
| * @param \Symfony\Component\HttpKernel\Event\FilterResponseEvent $event | |
| * The event to process. | |
| */ | |
| public function onRespond(FilterResponseEvent $event) { | |
| $response = $event->getResponse(); | |
| if (!$response instanceof HtmlResponse) { | |
| return; | |
| } | |
| $event->setResponse($this->htmlResponseAttachmentsProcessor->processAttachments($response)); | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public static function getSubscribedEvents() { | |
| $events[KernelEvents::RESPONSE][] = ['onRespond']; | |
| return $events; | |
| } | |
| } |