diff core/modules/contextual/src/ContextualController.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/contextual/src/ContextualController.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,71 @@
+<?php
+
+namespace Drupal\contextual;
+
+use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
+use Drupal\Core\Render\RendererInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
+
+/**
+ * Returns responses for Contextual module routes.
+ */
+class ContextualController implements ContainerInjectionInterface {
+
+  /**
+   * The renderer.
+   * @var \Drupal\Core\Render\RendererInterface
+   */
+  protected $render;
+
+  /**
+   * Constructors a new ContextualController
+   *
+   * @param \Drupal\Core\Render\RendererInterface $renderer
+   *   The renderer.
+   */
+  public function __construct(RendererInterface $renderer) {
+    $this->renderer = $renderer;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('renderer')
+    );
+  }
+
+  /**
+   * Returns the requested rendered contextual links.
+   *
+   * Given a list of contextual links IDs, render them. Hence this must be
+   * robust to handle arbitrary input.
+   *
+   * @see contextual_preprocess()
+   *
+   * @return \Symfony\Component\HttpFoundation\JsonResponse
+   *   The JSON response.
+   */
+  public function render(Request $request) {
+    $ids = $request->request->get('ids');
+    if (!isset($ids)) {
+      throw new BadRequestHttpException(t('No contextual ids specified.'));
+    }
+
+    $rendered = [];
+    foreach ($ids as $id) {
+      $element = [
+        '#type' => 'contextual_links',
+        '#contextual_links' => _contextual_id_to_links($id),
+      ];
+      $rendered[$id] = $this->renderer->renderRoot($element);
+    }
+
+    return new JsonResponse($rendered);
+  }
+
+}