Version 1
[yaffs-website] / web / core / modules / block / src / Controller / BlockListController.php
diff --git a/web/core/modules/block/src/Controller/BlockListController.php b/web/core/modules/block/src/Controller/BlockListController.php
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+<?php
+
+namespace Drupal\block\Controller;
+
+use Drupal\Core\Entity\Controller\EntityListController;
+use Drupal\Core\Extension\ThemeHandlerInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+
+/**
+ * Defines a controller to list blocks.
+ */
+class BlockListController extends EntityListController {
+
+  /**
+   * The theme handler.
+   *
+   * @var \Drupal\Core\Extension\ThemeHandlerInterface
+   */
+  protected $themeHandler;
+
+  /**
+   * Constructs the BlockListController.
+   *
+   * @param \Drupal\Core\Extension\ThemeHandlerInterface $theme_handler
+   *   The theme handler.
+   */
+  public function __construct(ThemeHandlerInterface $theme_handler) {
+    $this->themeHandler = $theme_handler;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('theme_handler')
+    );
+  }
+
+  /**
+   * Shows the block administration page.
+   *
+   * @param string|null $theme
+   *   Theme key of block list.
+   * @param \Symfony\Component\HttpFoundation\Request $request
+   *   The current request.
+   *
+   * @return array
+   *   A render array as expected by drupal_render().
+   */
+  public function listing($theme = NULL, Request $request = NULL) {
+    $theme = $theme ?: $this->config('system.theme')->get('default');
+    if (!$this->themeHandler->hasUi($theme)) {
+      throw new NotFoundHttpException();
+    }
+
+    return $this->entityManager()->getListBuilder('block')->render($theme, $request);
+  }
+
+}