function BlockEntitySettingTrayForm::buildForm

Overrides EntityForm::buildForm

File

core/modules/settings_tray/src/Block/BlockEntitySettingTrayForm.php, line 124

Class

BlockEntitySettingTrayForm

Provides form for block instance forms when used in the off-canvas dialog.

Namespace

Code

public function buildForm(array $form, FormStateInterface $form_state) {
    $form = parent::buildForm($form, $form_state);
    $form['actions']['submit']['#ajax'] = [
        'callback' => '::ajaxSubmit',
    ];
    $form['#attached']['library'][] = 'core/drupal.dialog.ajax';
    // static::ajaxSubmit() requires data-drupal-selector to be the same between
    // the various Ajax requests. A bug in \Drupal\Core\Form\FormBuilder
    // prevents that from happening unless $form['#id'] is also the same.
    // Normally, #id is set to a unique HTML ID via Html::getUniqueId(), but
    // here we bypass that in order to work around the data-drupal-selector bug.
    // This is okay so long as we assume that this form only ever occurs once on
    // a page.
    // @todo Remove this workaround once https://www.drupal.org/node/2897377 is
    //   fixed.
    $form['#id'] = Html::getId($form_state->getBuildInfo()['form_id']);
    return $form;
}