diff core/lib/Drupal/Core/EventSubscriber/HtmlResponseSubscriber.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/lib/Drupal/Core/EventSubscriber/HtmlResponseSubscriber.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,56 @@
+<?php
+
+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;
+  }
+
+}