public function ShowMoreEventSubscriber::onResponse in Views Show More 8

Renders the ajax commands right before preparing the result.

Parameters

\Symfony\Component\HttpKernel\Event\FilterResponseEvent $event: The response event, which contains the possible AjaxResponse object.

File

src/EventSubscriber/ShowMoreEventSubscriber.php, line 21

Class

ShowMoreEventSubscriber

Response subscriber to handle AJAX responses.

Namespace

Drupal\views_show_more\EventSubscriber

Code

public function onResponse(FilterResponseEvent $event) {
  $response = $event
    ->getResponse();

  // Only alter views ajax responses.
  if (!$response instanceof ViewAjaxResponse) {
    return;
  }
  $view = $response
    ->getView();

  // Only alter commands if the user has selected our pager and it attempting
  // to move beyond page 0.
  if ($view
    ->getPager()
    ->getPluginId() !== 'show_more' || $view
    ->getCurrentPage() === 0) {
    return;
  }
  $commands =& $response
    ->getCommands();
  foreach ($commands as $key => $command) {

    // Remove "viewsScrollTop" command, not needed.
    if ($command['command'] == 'viewsScrollTop') {
      unset($commands[$key]);
    }

    // The replace should the only one, but just in case, we'll make sure.
    if ($command['command'] == 'insert') {
      $style_plugin = $view->style_plugin
        ->getPluginDefinition()['id'];
      $options =& $view->style_plugin->options;
      $pager_options = $view->pager->options;
      if ($style_plugin == 'html_list' && in_array($options['type'], [
        'ul',
        'ol',
      ])) {
        $target = "> {$options['type']}";
        if (!empty($options['wrapper_class'])) {
          $wrapper_classes = str_replace(' ', '.', $options['wrapper_class']);
          $target = ".{$wrapper_classes} {$target}";
        }
        $commands[$key]['append_at'] = $target;
      }
      elseif ($style_plugin == 'table') {
        $commands[$key]['append_at'] = '.views-table tbody';
      }
      elseif ($style_plugin == 'grid') {
        $commands[$key]['append_at'] = '.views-view-grid';
      }
      $commands[$key]['command'] = 'viewsShowMore';
      $commands[$key]['method'] = $pager_options['result_display_method'];
      if (isset($pager_options['effects']) && $pager_options['effects']['type'] != 'none') {
        $commands[$key]['effect'] = $pager_options['effects']['type'];
        $commands[$key]['speed'] = $pager_options['effects']['speed'];
        $commands[$key]['scroll_offset'] = $pager_options['effects']['scroll_offset'];
      }
      $commands[$key]['options'] = [
        'content_selector' => $pager_options['advance']['content_selector'],
        'pager_selector' => $pager_options['advance']['pager_selector'],
      ];
    }
  }
}