www.aleph1.co.uk Git - yaffs-website/blob - web/modules/contrib/paragraphs/src/Element/ParagraphsActions.php

   1 <?php
   2
   3 namespace Drupal\paragraphs\Element;
   4
   5 use Drupal\Core\Render\Element;
   6 use Drupal\Core\Render\Element\RenderElement;
   7
   8 /**
   9  * Provides a render element for a paragraphs actions.
  10  *
  11  * Paragraphs actions can have two type of actions
  12  * - actions - this are default actions that are always visible.
  13  * - dropdown_actions - actions that are in dropdown sub component.
  14  *
  15  * Usage example:
  16  *
  17  * @code
  18  * $form['actions'] = [
  19  *   '#type' => 'paragraphs_actions',
  20  *   'actions' => $actions,
  21  *   'dropdown_actions' => $dropdown_actions,
  22  * ];
  23  * $dropdown_actions['button'] = array(
  24  *   '#type' => 'submit',
  25  * );
  26  * @endcode
  27  *
  28  * @FormElement("paragraphs_actions")
  29  */
  30 class ParagraphsActions extends RenderElement {
  31
  32   /**
  33    * {@inheritdoc}
  34    */
  35   public function getInfo() {
  36     $class = get_class($this);
  37
  38     return [
  39       '#pre_render' => [
  40         [$class, 'preRenderParagraphsActions'],
  41       ],
  42       '#theme' => 'paragraphs_actions',
  43     ];
  44   }
  45
  46   /**
  47    * Pre render callback for #type 'paragraphs_actions'.
  48    *
  49    * @param array $element
  50    *   Element arrar of a #type 'paragraphs_actions'.
  51    *
  52    * @return array
  53    *   The processed element.
  54    */
  55   public static function preRenderParagraphsActions(array $element) {
  56     $element['#attached']['library'][] = 'paragraphs/drupal.paragraphs.actions';
  57
  58     if (!empty($element['dropdown_actions'])) {
  59       foreach (Element::children($element['dropdown_actions']) as $key) {
  60         $dropdown_action = &$element['dropdown_actions'][$key];
  61         if (isset($dropdown_action['#ajax'])) {
  62           $dropdown_action = RenderElement::preRenderAjaxForm($dropdown_action);
  63         }
  64         if (empty($dropdown_action['#attributes'])) {
  65           $dropdown_action['#attributes'] = ['class' => ['paragraphs-dropdown-action']];
  66         }
  67         else {
  68           $dropdown_action['#attributes']['class'][] = 'paragraphs-dropdown-action';
  69         }
  70       }
  71     }
  72
  73     return $element;
  74   }
  75
  76 }