function lightning_media_field_widget_entity_browser_entity_reference_form_alter in Lightning Media 8

Same name and namespace in other branches

1. 8.4 lightning_media.module \lightning_media_field_widget_entity_browser_entity_reference_form_alter()
2. 8.2 lightning_media.module \lightning_media_field_widget_entity_browser_entity_reference_form_alter()
3. 8.3 lightning_media.module \lightning_media_field_widget_entity_browser_entity_reference_form_alter()

Implements hook_field_widget_WIDGET_TYPE_form_alter().

File

./lightning_media.module, line 108

Core media asset support for Lightning.

Code

function lightning_media_field_widget_entity_browser_entity_reference_form_alter(array &$element, FormStateInterface $form_state, array $context) {

  // Move the remaining number of selections to the details summary.
  $element['#description'] .= $element['current']['#prefix'];
  unset($element['current']['#prefix']);

  /** @var \Drupal\Core\Field\FieldItemListInterface $items */
  $items = $context['items'];

  // Wrap the current selections in a nice <details> element.
  $cardinality = $items
    ->getFieldDefinition()
    ->getFieldStorageDefinition()
    ->getCardinality();
  $element['current']['#theme_wrappers'] = [
    'details' => [
      '#attributes' => [
        'open' => TRUE,
      ],
      '#title' => new Plural($cardinality, 'Current selection', 'Current selections'),
    ],
  ];
}