editor_form_filter_admin_format_editor_configure

editor_form_filter_admin_format_editor_configure($form, FormStateInterface $form_state)

function editor_form_filter_admin_format_editor_configure($form, FormStateInterface $form_state) {
  $editor = $form_state->get('editor');
  $editor_value = $form_state->getValue(array('editor', 'editor'));
  if ($editor_value !== NULL) {
    if ($editor_value === '') {
      $form_state->set('editor', FALSE);
    }
    elseif (empty($editor) || $editor_value !== $editor->getEditor()) {
      $format = $form_state->getFormObject()->getEntity();
      $editor = Editor::create([
        'format' => $format->isNew() ? NULL : $format->id(),
        'editor' => $editor_value,
      ]);
      $form_state->set('editor', $editor);
    }
  }
  $form_state->setRebuild();
}