Chris@0: /**
Chris@0:  * Implements hook_preprocess().
Chris@0:  */
Chris@0: function {{ machine_name }}_preprocess(&$variables, $hook) {
Chris@0:   static $hooks;
Chris@0: 
Chris@0:   // Add contextual links to the variables, if the user has permission.
Chris@0: 
Chris@0:   if (!\Drupal::currentUser()->hasPermission('access contextual links')) {
Chris@0:     return;
Chris@0:   }
Chris@0: 
Chris@0:   if (!isset($hooks)) {
Chris@0:     $hooks = theme_get_registry();
Chris@0:   }
Chris@0: 
Chris@0:   // Determine the primary theme function argument.
Chris@0:   if (isset($hooks[$hook]['variables'])) {
Chris@0:     $keys = array_keys($hooks[$hook]['variables']);
Chris@0:     $key = $keys[0];
Chris@0:   }
Chris@0:   else {
Chris@0:     $key = $hooks[$hook]['render element'];
Chris@0:   }
Chris@0: 
Chris@0:   if (isset($variables[$key])) {
Chris@0:     $element = $variables[$key];
Chris@0:   }
Chris@0: 
Chris@0:   if (isset($element) && is_array($element) && !empty($element['#contextual_links'])) {
Chris@0:     $variables['title_suffix']['contextual_links'] = contextual_links_view($element);
Chris@0:     if (!empty($variables['title_suffix']['contextual_links'])) {
Chris@0:       $variables['attributes']['class'][] = 'contextual-links-region';
Chris@0:     }
Chris@0:   }
Chris@0: }