public function OverlaySubscriber::onRequest

Performs check on the beginning of a request.

Determine whether the current page request is destined to appear in the parent window or in the overlay window, and format the page accordingly.

See also

overlay_set_mode()

File

drupal/core/modules/overlay/lib/Drupal/overlay/EventSubscriber/OverlaySubscriber.php, line 58

Contains \Drupal\overlay\EventSubscriber\OverlaySubscriber.

Class

OverlaySubscriber

Overlay subscriber for controller requests.

Namespace

Code

public function onRequest(GetResponseEvent $event) {
  $request = $event
    ->getRequest();
  if ($this->negotiation
    ->getContentType($request) != 'html') {

    // Only act on html pages.
    return;
  }
  global $user;
  $mode = overlay_get_mode();

  // Only act if the user has access to the overlay and a mode was not already
  // set. Other modules can also enable the overlay directly for other uses.
  $user_data = $this->userData
    ->get('overlay', $user->uid, 'enabled');
  $use_overlay = !isset($user_data) || $user_data;
  if (empty($mode) && user_access('access overlay') && $use_overlay) {
    $current_path = $request->attributes
      ->get('system_path');

    // After overlay is enabled on the modules page, redirect to
    // <front>#overlay=admin/modules to actually enable the overlay.
    if (isset($_SESSION['overlay_enable_redirect']) && $_SESSION['overlay_enable_redirect']) {
      unset($_SESSION['overlay_enable_redirect']);
      $response = new RedirectResponse(url('<front>', array(
        'fragment' => 'overlay=' . $current_path,
        'absolute' => TRUE,
      )));
      $event
        ->setResponse($response);
    }
    if ($request->query
      ->get('render') == 'overlay') {

      // If a previous page requested that we close the overlay, close it and
      // redirect to the final destination.
      if (isset($_SESSION['overlay_close_dialog'])) {
        $response = call_user_func_array('overlay_close_dialog', $_SESSION['overlay_close_dialog']);
        unset($_SESSION['overlay_close_dialog']);
        $event
          ->setResponse($response);
      }
      elseif (!path_is_admin($current_path)) {
        $response = overlay_close_dialog($current_path, array(
          'query' => drupal_get_query_parameters(NULL, array(
            'render',
          )),
        ));
        $event
          ->setResponse($response);
      }

      // Indicate that we are viewing an overlay child page.
      overlay_set_mode('child');

      // Unset the render parameter to avoid it being included in URLs on the
      // page.
      $request->query
        ->remove('render');
    }
    elseif (!path_is_admin($current_path)) {

      // Otherwise add overlay parent code and our behavior.
      overlay_set_mode('parent');
    }
  }
}