Plugins support (#592)

src/Controller/EventController.php

@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the AdminLTE bundle.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Controller;
+
+use App\Event\ThemeEvent;
+use Symfony\Bundle\FrameworkBundle\Controller\Controller;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class EventController extends Controller
+{
+    /**
+     * @var EventDispatcherInterface
+     */
+    protected $eventDispatcher;
+
+    /**
+     * @param EventDispatcherInterface $dispatcher
+     */
+    public function __construct(EventDispatcherInterface $dispatcher)
+    {
+        $this->eventDispatcher = $dispatcher;
+    }
+
+    /**
+     * @return EventDispatcherInterface
+     */
+    protected function getDispatcher()
+    {
+        return $this->eventDispatcher;
+    }
+
+    /**
+     * @param string $eventName
+     *
+     * @return bool
+     */
+    protected function hasListener($eventName)
+    {
+        return $this->getDispatcher()->hasListeners($eventName);
+    }
+
+    /**
+     * @param Request $request
+     * @param string $eventName
+     * @return ThemeEvent|Response
+     */
+    public function trigger(Request $request, string $event)
+    {
+        if (!$this->hasListener($event)) {
+            return new Response();
+        }
+
+        $themeEvent = new ThemeEvent($request, $this->getUser());
+        $this->getDispatcher()->dispatch($event, $themeEvent);
+
+        return new Response($themeEvent->getContent());
+    }
+}