Move into nested docroot

web/core/modules/views/src/Controller/ViewAjaxController.php

@@ -0,0 +1,206 @@
+<?php
+
+namespace Drupal\views\Controller;
+
+use Drupal\Component\Utility\UrlHelper;
+use Drupal\Core\Ajax\ReplaceCommand;
+use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
+use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Core\EventSubscriber\AjaxResponseSubscriber;
+use Drupal\Core\EventSubscriber\MainContentViewSubscriber;
+use Drupal\Core\Form\FormBuilderInterface;
+use Drupal\Core\Path\CurrentPathStack;
+use Drupal\Core\Render\BubbleableMetadata;
+use Drupal\Core\Render\RenderContext;
+use Drupal\Core\Render\RendererInterface;
+use Drupal\Core\Routing\RedirectDestinationInterface;
+use Drupal\views\Ajax\ScrollTopCommand;
+use Drupal\views\Ajax\ViewAjaxResponse;
+use Drupal\views\ViewExecutableFactory;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
+
+/**
+ * Defines a controller to load a view via AJAX.
+ */
+class ViewAjaxController implements ContainerInjectionInterface {
+
+  /**
+   * The entity storage for views.
+   *
+   * @var \Drupal\Core\Entity\EntityStorageInterface
+   */
+  protected $storage;
+
+  /**
+   * The factory to load a view executable with.
+   *
+   * @var \Drupal\views\ViewExecutableFactory
+   */
+  protected $executableFactory;
+
+  /**
+   * The renderer.
+   *
+   * @var \Drupal\Core\Render\RendererInterface
+   */
+  protected $renderer;
+
+  /**
+   * The current path.
+   *
+   * @var \Drupal\Core\Path\CurrentPathStack
+   */
+  protected $currentPath;
+
+  /**
+   * The redirect destination.
+   *
+   * @var \Drupal\Core\Routing\RedirectDestinationInterface
+   */
+  protected $redirectDestination;
+
+  /**
+   * Constructs a ViewAjaxController object.
+   *
+   * @param \Drupal\Core\Entity\EntityStorageInterface $storage
+   *   The entity storage for views.
+   * @param \Drupal\views\ViewExecutableFactory $executable_factory
+   *   The factory to load a view executable with.
+   * @param \Drupal\Core\Render\RendererInterface $renderer
+   *   The renderer.
+   * @param \Drupal\Core\Path\CurrentPathStack $current_path
+   *   The current path.
+   * @param \Drupal\Core\Routing\RedirectDestinationInterface $redirect_destination
+   *   The redirect destination.
+   */
+  public function __construct(EntityStorageInterface $storage, ViewExecutableFactory $executable_factory, RendererInterface $renderer, CurrentPathStack $current_path, RedirectDestinationInterface $redirect_destination) {
+    $this->storage = $storage;
+    $this->executableFactory = $executable_factory;
+    $this->renderer = $renderer;
+    $this->currentPath = $current_path;
+    $this->redirectDestination = $redirect_destination;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('entity.manager')->getStorage('view'),
+      $container->get('views.executable'),
+      $container->get('renderer'),
+      $container->get('path.current'),
+      $container->get('redirect.destination')
+    );
+  }
+
+  /**
+   * Loads and renders a view via AJAX.
+   *
+   * @param \Symfony\Component\HttpFoundation\Request $request
+   *   The current request object.
+   *
+   * @return \Drupal\views\Ajax\ViewAjaxResponse
+   *   The view response as ajax response.
+   *
+   * @throws \Symfony\Component\HttpKernel\Exception\NotFoundHttpException
+   *   Thrown when the view was not found.
+   */
+  public function ajaxView(Request $request) {
+    $name = $request->request->get('view_name');
+    $display_id = $request->request->get('view_display_id');
+    if (isset($name) && isset($display_id)) {
+      $args = $request->request->get('view_args');
+      $args = isset($args) && $args !== '' ? explode('/', $args) : array();
+
+      // Arguments can be empty, make sure they are passed on as NULL so that
+      // argument validation is not triggered.
+      $args = array_map(function ($arg) {
+        return ($arg == '' ? NULL : $arg);
+      }, $args);
+
+      $path = $request->request->get('view_path');
+      $dom_id = $request->request->get('view_dom_id');
+      $dom_id = isset($dom_id) ? preg_replace('/[^a-zA-Z0-9_-]+/', '-', $dom_id) : NULL;
+      $pager_element = $request->request->get('pager_element');
+      $pager_element = isset($pager_element) ? intval($pager_element) : NULL;
+
+      $response = new ViewAjaxResponse();
+
+      // Remove all of this stuff from the query of the request so it doesn't
+      // end up in pagers and tablesort URLs.
+      foreach (array('view_name', 'view_display_id', 'view_args', 'view_path', 'view_dom_id', 'pager_element', 'view_base_path', AjaxResponseSubscriber::AJAX_REQUEST_PARAMETER) as $key) {
+        $request->query->remove($key);
+        $request->request->remove($key);
+      }
+
+      // Load the view.
+      if (!$entity = $this->storage->load($name)) {
+        throw new NotFoundHttpException();
+      }
+      $view = $this->executableFactory->get($entity);
+      if ($view && $view->access($display_id)) {
+        $response->setView($view);
+        // Fix the current path for paging.
+        if (!empty($path)) {
+          $this->currentPath->setPath('/' . $path, $request);
+        }
+
+        // Add all POST data, because AJAX is always a post and many things,
+        // such as tablesorts, exposed filters and paging assume GET.
+        $request_all = $request->request->all();
+        $query_all = $request->query->all();
+        $request->query->replace($request_all + $query_all);
+
+        // Overwrite the destination.
+        // @see the redirect.destination service.
+        $origin_destination = $path;
+
+        // Remove some special parameters you never want to have part of the
+        // destination query.
+        $used_query_parameters = $request->query->all();
+        // @todo Remove this parsing once these are removed from the request in
+        //   https://www.drupal.org/node/2504709.
+        unset($used_query_parameters[FormBuilderInterface::AJAX_FORM_REQUEST], $used_query_parameters[MainContentViewSubscriber::WRAPPER_FORMAT], $used_query_parameters['ajax_page_state']);
+
+        $query = UrlHelper::buildQuery($used_query_parameters);
+        if ($query != '') {
+          $origin_destination .= '?' . $query;
+        }
+        $this->redirectDestination->set($origin_destination);
+
+        // Override the display's pager_element with the one actually used.
+        if (isset($pager_element)) {
+          $response->addCommand(new ScrollTopCommand(".js-view-dom-id-$dom_id"));
+          $view->displayHandlers->get($display_id)->setOption('pager_element', $pager_element);
+        }
+        // Reuse the same DOM id so it matches that in drupalSettings.
+        $view->dom_id = $dom_id;
+
+        $context = new RenderContext();
+        $preview = $this->renderer->executeInRenderContext($context, function() use ($view, $display_id, $args) {
+          return $view->preview($display_id, $args);
+        });
+        if (!$context->isEmpty()) {
+          $bubbleable_metadata = $context->pop();
+          BubbleableMetadata::createFromRenderArray($preview)
+            ->merge($bubbleable_metadata)
+            ->applyTo($preview);
+        }
+        $response->addCommand(new ReplaceCommand(".js-view-dom-id-$dom_id", $preview));
+
+        return $response;
+      }
+      else {
+        throw new AccessDeniedHttpException();
+      }
+    }
+    else {
+      throw new NotFoundHttpException();
+    }
+  }
+
+}