Version 1

[yaffs-website] / web / core / modules / system / tests / modules / theme_test / src / EventSubscriber / ThemeTestSubscriber.php

diff --git a/web/core/modules/system/tests/modules/theme_test/src/EventSubscriber/ThemeTestSubscriber.php b/web/core/modules/system/tests/modules/theme_test/src/EventSubscriber/ThemeTestSubscriber.php
new file mode 100644 (file)
index 0000000..8ac86f1
--- /dev/null
+++ b/web/core/modules/system/tests/modules/theme_test/src/EventSubscriber/ThemeTestSubscriber.php
@@ -0,0 +1,100 @@
+<?php
+
+namespace Drupal\theme_test\EventSubscriber;
+
+use Drupal\Core\Render\RendererInterface;
+use Drupal\Core\Url;
+use Drupal\Core\Routing\RouteMatchInterface;
+use Symfony\Component\HttpKernel\KernelEvents;
+use Symfony\Component\HttpKernel\Event\GetResponseEvent;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+
+/**
+ * Theme test subscriber for controller requests.
+ */
+class ThemeTestSubscriber implements EventSubscriberInterface {
+
+  /**
+   * The used container.
+   *
+   * @var \Symfony\Component\DependencyInjection\IntrospectableContainerInterface
+   */
+  protected $container;
+
+  /**
+   * The current route match.
+   *
+   * @var \Drupal\Core\Routing\RouteMatchInterface
+   */
+  protected $currentRouteMatch;
+
+  /**
+   * The renderer.
+   *
+   * @var \Drupal\Core\Render\RendererInterface
+   */
+  protected $renderer;
+
+  /**
+   * Constructs a new ThemeTestSubscriber.
+   *
+   * @param \Drupal\Core\Routing\RouteMatchInterface $current_route_match
+   * @param \Drupal\Core\Render\RendererInterface $renderer
+   *   The renderer.
+   */
+  public function __construct(RouteMatchInterface $current_route_match, RendererInterface $renderer) {
+    $this->currentRouteMatch = $current_route_match;
+    $this->renderer = $renderer;
+  }
+
+  /**
+   * Generates themed output early in a page request.
+   *
+   * @see \Drupal\system\Tests\Theme\ThemeEarlyInitializationTest::testRequestListener()
+   */
+  public function onRequest(GetResponseEvent $event) {
+    if ($this->currentRouteMatch->getRouteName() === 'theme_test.request_listener') {
+      // First, force the theme registry to be rebuilt on this page request.
+      // This allows us to test a full initialization of the theme system in
+      // the code below.
+      drupal_theme_rebuild();
+      // Next, initialize the theme system by storing themed text in a global
+      // variable. We will use this later in
+      // theme_test_request_listener_page_callback() to test that even when the
+      // theme system is initialized this early, it is still capable of
+      // returning output and theming the page as a whole.
+      $more_link = [
+        '#type' => 'more_link',
+        '#url' => Url::fromRoute('user.page'),
+        '#attributes' => ['title' => 'Themed output generated in a KernelEvents::REQUEST listener'],
+      ];
+      $GLOBALS['theme_test_output'] = $this->renderer->renderPlain($more_link);
+    }
+  }
+
+  /**
+   * Ensures that the theme registry was not initialized.
+   */
+  public function onView(GetResponseEvent $event) {
+    $current_route = $this->currentRouteMatch->getRouteName();
+    $entity_autcomplete_route = [
+      'system.entity_autocomplete',
+    ];
+
+    if (in_array($current_route, $entity_autcomplete_route)) {
+      if ($this->container->initialized('theme.registry')) {
+        throw new \Exception('registry initialized');
+      }
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function getSubscribedEvents() {
+    $events[KernelEvents::REQUEST][] = ['onRequest'];
+    $events[KernelEvents::VIEW][] = ['onView', -1000];
+    return $events;
+  }
+
+}