InstapagePluginSubscriber.php in Instapage plugin 8.3

Namespace

Drupal\instapage_cms_plugin\EventSubscriber

File

src/EventSubscriber/InstapagePluginSubscriber.php

<?php

namespace Drupal\instapage_cms_plugin\EventSubscriber;

use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;

/**
 * Class needed to display custom 404 page in Drupal 8.
 */
class InstapagePluginSubscriber implements EventSubscriberInterface {

  /**
   * Registers a callback.
   *
   * @return array Drupal 8 events array.
   */
  static function getSubscribedEvents() {
    $events[KernelEvents::RESPONSE][] = [
      'onKernelResponse',
      5,
    ];
    return $events;
  }

  /**
   * Callback function to display 404 page.
   *
   * @param object $event Event object.
   */
  public function onKernelResponse(FilterResponseEvent $event) {
    if (!$event
      ->isMasterRequest()) {
      return;
    }
    $response = $event
      ->getResponse();
    $statusCode = $response
      ->getStatusCode();
    if ($statusCode == 404) {
      \InstapageCmsPluginConnector::checkPage('404');
    }
  }

}

Classes

Name	Description
InstapagePluginSubscriber	Class needed to display custom 404 page in Drupal 8.