Version 1

[yaffs-website] / web / core / modules / block / src / Controller / BlockController.php

diff --git a/web/core/modules/block/src/Controller/BlockController.php b/web/core/modules/block/src/Controller/BlockController.php
new file mode 100644 (file)
index 0000000..7398ff9
--- /dev/null
+++ b/web/core/modules/block/src/Controller/BlockController.php
@@ -0,0 +1,118 @@
+<?php
+
+namespace Drupal\block\Controller;
+
+use Drupal\Component\Utility\Html;
+use Drupal\block\BlockInterface;
+use Drupal\Core\Controller\ControllerBase;
+use Drupal\Core\Extension\ThemeHandlerInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+
+/**
+ * Controller routines for admin block routes.
+ */
+class BlockController extends ControllerBase {
+
+  /**
+   * The theme handler.
+   *
+   * @var \Drupal\Core\Extension\ThemeHandlerInterface
+   */
+  protected $themeHandler;
+
+  /**
+   * Constructs a new BlockController instance.
+   *
+   * @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')
+    );
+  }
+
+  /**
+   * Calls a method on a block and reloads the listing page.
+   *
+   * @param \Drupal\block\BlockInterface $block
+   *   The block being acted upon.
+   * @param string $op
+   *   The operation to perform, e.g., 'enable' or 'disable'.
+   *
+   * @return \Symfony\Component\HttpFoundation\RedirectResponse
+   *   A redirect back to the listing page.
+   */
+  public function performOperation(BlockInterface $block, $op) {
+    $block->$op()->save();
+    drupal_set_message($this->t('The block settings have been updated.'));
+    return $this->redirect('block.admin_display');
+  }
+
+  /**
+   * Returns a block theme demo page.
+   *
+   * @param string $theme
+   *   The name of the theme.
+   *
+   * @return array
+   *   A #type 'page' render array containing the block region demo.
+   */
+  public function demo($theme) {
+    if (!$this->themeHandler->hasUi($theme)) {
+      throw new NotFoundHttpException();
+    }
+
+    $page = [
+      '#title' => Html::escape($this->themeHandler->getName($theme)),
+      '#type' => 'page',
+      '#attached' => [
+        'drupalSettings' => [
+          // The block demonstration page is not marked as an administrative
+          // page by \Drupal::service('router.admin_context')->isAdminRoute()
+          // function in order to use the frontend theme. Since JavaScript
+          // relies on a proper separation of admin pages, it needs to know this
+          // is an actual administrative page.
+          'path' => ['currentPathIsAdmin' => TRUE],
+        ],
+        'library' => [
+          'block/drupal.block.admin',
+        ],
+      ],
+    ];
+
+    // Show descriptions in each visible page region, nothing else.
+    $visible_regions = $this->getVisibleRegionNames($theme);
+    foreach (array_keys($visible_regions) as $region) {
+      $page[$region]['block_description'] = [
+        '#type' => 'inline_template',
+        '#template' => '<div class="block-region demo-block">{{ region_name }}</div>',
+        '#context' => ['region_name' => $visible_regions[$region]],
+      ];
+    }
+
+    return $page;
+  }
+
+  /**
+   * Returns the human-readable list of regions keyed by machine name.
+   *
+   * @param string $theme
+   *   The name of the theme.
+   *
+   * @return array
+   *   An array of human-readable region names keyed by machine name.
+   */
+  protected function getVisibleRegionNames($theme) {
+    return system_region_list($theme, REGIONS_VISIBLE);
+  }
+
+}