annotate core/modules/big_pipe/src/EventSubscriber/NoBigPipeRouteAlterSubscriber.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents 4c8ae668cc8c
children
rev   line source
Chris@0 1 <?php
Chris@0 2
Chris@0 3 namespace Drupal\big_pipe\EventSubscriber;
Chris@0 4
Chris@0 5 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
Chris@0 6 use Drupal\Core\Routing\RoutingEvents;
Chris@0 7 use Drupal\Core\Routing\RouteBuildEvent;
Chris@0 8
Chris@0 9 /**
Chris@0 10 * Sets the '_no_big_pipe' option on select routes.
Chris@0 11 */
Chris@0 12 class NoBigPipeRouteAlterSubscriber implements EventSubscriberInterface {
Chris@0 13
Chris@0 14 /**
Chris@0 15 * Alters select routes to have the '_no_big_pipe' option.
Chris@0 16 *
Chris@0 17 * @param \Drupal\Core\Routing\RouteBuildEvent $event
Chris@0 18 * The event to process.
Chris@0 19 */
Chris@0 20 public function onRoutingRouteAlterSetNoBigPipe(RouteBuildEvent $event) {
Chris@0 21 $no_big_pipe_routes = [
Chris@0 22 // The batch system uses a <meta> refresh to work without JavaScript.
Chris@0 23 'system.batch_page.html',
Chris@0 24 // When a user would install the BigPipe module using a browser and with
Chris@0 25 // JavaScript disabled, the first response contains the status messages
Chris@0 26 // for installing a module, but then the BigPipe no-JS redirect occurs,
Chris@0 27 // which then causes the user to not see those status messages.
Chris@0 28 // @see https://www.drupal.org/node/2469431#comment-10901944
Chris@0 29 'system.modules_list',
Chris@0 30 ];
Chris@0 31
Chris@0 32 $route_collection = $event->getRouteCollection();
Chris@0 33 foreach ($no_big_pipe_routes as $excluded_route) {
Chris@0 34 if ($route = $route_collection->get($excluded_route)) {
Chris@0 35 $route->setOption('_no_big_pipe', TRUE);
Chris@0 36 }
Chris@0 37 }
Chris@0 38 }
Chris@0 39
Chris@0 40 /**
Chris@0 41 * {@inheritdoc}
Chris@0 42 */
Chris@0 43 public static function getSubscribedEvents() {
Chris@0 44 $events[RoutingEvents::ALTER][] = ['onRoutingRouteAlterSetNoBigPipe'];
Chris@0 45 return $events;
Chris@0 46 }
Chris@0 47
Chris@0 48 }