function language_form_alter in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/language/language.module \language_form_alter()
2. 10 core/modules/language/language.module \language_form_alter()

Implements hook_form_alter().

File

core/modules/language/language.module, line 378

Add language handling functionality to Drupal.

Code

function language_form_alter(&$form, FormStateInterface $form_state) {

  // Content entity forms may have added a langcode field. But content language
  // configuration should decide if it should be exposed or not in the forms.
  $form_object = $form_state
    ->getFormObject();
  if ($form_object instanceof ContentEntityFormInterface && $form_object
    ->getEntity()
    ->getEntityType()
    ->hasKey('langcode')) {

    /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
    $entity = $form_object
      ->getEntity();
    $entity_type = $entity
      ->getEntityType();
    $langcode_key = $entity_type
      ->getKey('langcode');
    if (isset($form[$langcode_key]) && $form[$langcode_key]['#access'] !== FALSE) {
      $language_configuration = ContentLanguageSettings::loadByEntityTypeBundle($entity
        ->getEntityTypeId(), $entity
        ->bundle());
      $form[$langcode_key]['#access'] = $language_configuration
        ->isLanguageAlterable();
    }
  }
}