ContentTranslationHandler::entityFormSharedElements

public ContentTranslationHandler::entityFormSharedElements($element, FormStateInterface $form_state, $form)

public function entityFormSharedElements($element, FormStateInterface $form_state, $form) {
  static $ignored_types;

  // @todo Find a more reliable way to determine if a form element concerns a
  //   multilingual value.
  if (!isset($ignored_types)) {
    $ignored_types = array_flip(array('actions', 'value', 'hidden', 'vertical_tabs', 'token', 'details'));
  }

  foreach (Element::children($element) as $key) {
    if (!isset($element[$key]['#type'])) {
      $this->entityFormSharedElements($element[$key], $form_state, $form);
    }
    else {
      // Ignore non-widget form elements.
      if (isset($ignored_types[$element[$key]['#type']])) {
        continue;
      }
      // Elements are considered to be non multilingual by default.
      if (empty($element[$key]['#multilingual'])) {
        // If we are displaying a multilingual entity form we need to provide
        // translatability clues, otherwise the shared form elements should be
        // hidden.
        if (!$form_state->get(['content_translation', 'translation_form'])) {
          $this->addTranslatabilityClue($element[$key]);
        }
        else {
          $element[$key]['#access'] = FALSE;
        }
      }
    }
  }

  return $element;
}