public static function ParagraphsStylePlugin::ajaxStyleSelect in Paragraphs Collection 8

Ajax callback for loading the style description for the currently selected style.

Parameters

array $form: A nested array of form elements comprising the form.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Return value

array The form element representing the style description.

File

src/Plugin/paragraphs/Behavior/ParagraphsStylePlugin.php, line 320

Class

ParagraphsStylePlugin

Provides style selection plugin.

Namespace

Drupal\paragraphs_collection\Plugin\paragraphs\Behavior

Code

public static function ajaxStyleSelect(array $form, FormStateInterface $form_state) {

  // Gets the style description accordingly.
  $select = $form_state
    ->getTriggeringElement();
  $style_discovery = \Drupal::getContainer()
    ->get('paragraphs_collection.style_discovery');
  $styles = $style_discovery
    ->getStyles();
  $description = '';
  if (isset($styles[$select['#value']]['description'])) {
    $description = $styles[$select['#value']]['description'];
  }

  // Gets the complete behavior plugin form.
  $return_form = NestedArray::getValue($form, array_slice($select['#array_parents'], 0, -2));
  $return_form['style_wrapper']['style_description']['#markup'] = $description;
  return $return_form;
}