public static function Select2::preRenderSelect in Select2 ALL THE THINGS! 8

Render API callback: Apply Select2 to a select element.

Parameters

array $element: The element.

Return value

array The element.

File

src/Select2.php, line 25

Class

Select2

Methods for adding Select2 to render elements.

Namespace

Drupal\select2_all

Code

public static function preRenderSelect(array $element) {

  // Exclude Select2 from theme other than admin.
  $theme = \Drupal::theme()
    ->getActiveTheme()
    ->getName();
  $admin_theme = \Drupal::config('system.theme')
    ->get('admin');
  $is_admin_path = \Drupal::service('router.admin_context')
    ->isAdminRoute();
  $is_admin = $is_admin_path || $theme == $admin_theme;

  // $select2_include = \Drupal::config('select2.settings')->get('select2_include');
  // if ($select2_include != SELECT2_INCLUDE_EVERYWHERE && $is_admin == $select2_include) {
  //   return $element;
  // }
  // If the #select2 FAPI property is set, then add the appropriate class.
  if (isset($element['#select2'])) {
    if (!empty($element['#select2'])) {

      // Element has opted-in for Select2, ensure the library gets added.
      $element['#attributes']['class'][] = 'select2-enable';
    }
    else {
      $element['#attributes']['class'][] = 'select2-disable';

      // Element has opted-out of Select2. Do not add the library now.
      return $element;
    }
  }
  elseif (isset($element['#attributes']['class']) && is_array($element['#attributes']['class'])) {
    if (array_intersect($element['#attributes']['class'], [
      'select2-disable',
    ])) {

      // Element has opted-out of Select2. Do not add the library now.
      return $element;
    }
    elseif (array_intersect($element['#attributes']['class'], [
      'select2-enable',
    ])) {

      // Element has opted-in for Select2, ensure the library gets added.
    }
  }
  else {

    // Neither the #select property was set, nor any select2 classes found.
    // This element still might match the site-wide criteria, so add the library.
  }
  if (isset($element['#field_name']) && !empty($element['#multiple'])) {

    // Remove '_none' from multi-select options.
    unset($element['#options']['_none']);
    if (isset($element['#entity_type'], $element['#bundle'])) {

      // Set data-cardinality for fields that aren't unlimited.
      $field = FieldConfig::loadByName($element['#entity_type'], $element['#bundle'], $element['#field_name'])
        ->getFieldStorageDefinition();
      $cardinality = $field
        ->getCardinality();
      if ($cardinality != FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED && $cardinality > 1) {
        $element['#attributes']['data-cardinality'] = $cardinality;
      }
    }
  }

  // Attach the library.
  static::attachLibrary($element);
  return $element;
}