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

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/lib/Drupal/Core/EventSubscriber/RouteEnhancerSubscriber.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,48 @@
+<?php
+
+namespace Drupal\Core\EventSubscriber;
+
+use Drupal\Core\Routing\LazyRouteEnhancer;
+use Drupal\Core\Routing\RouteBuildEvent;
+use Drupal\Core\Routing\RoutingEvents;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+
+/**
+ * Listens to the new routes before they get saved.
+ */
+class RouteEnhancerSubscriber implements EventSubscriberInterface {
+
+  /**
+   * @var \Drupal\Core\Routing\LazyRouteEnhancer
+   */
+  protected $routeEnhancer;
+
+  /**
+   * Constructs the RouteEnhancerSubscriber object.
+   *
+   * @param \Drupal\Core\Routing\LazyRouteEnhancer $route_enhancer
+   *   The lazy route enhancer.
+   */
+  public function __construct(LazyRouteEnhancer $route_enhancer) {
+    $this->routeEnhancer = $route_enhancer;
+  }
+
+  /**
+   * Adds the route_enhancer object to the route collection.
+   *
+   * @param \Drupal\Core\Routing\RouteBuildEvent $event
+   *   The route build event.
+   */
+  public function onRouteAlter(RouteBuildEvent $event) {
+    $this->routeEnhancer->setEnhancers($event->getRouteCollection());
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function getSubscribedEvents() {
+    $events[RoutingEvents::ALTER][] = ['onRouteAlter', -300];
+    return $events;
+  }
+
+}