public function JsAjaxTestForm::buildForm in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/system/tests/modules/js_ajax_test/src/Form/JsAjaxTestForm.php \Drupal\js_ajax_test\Form\JsAjaxTestForm::buildForm()

Form for testing the addition of various types of elements via Ajax.

Overrides FormInterface::buildForm

File

core/modules/system/tests/modules/js_ajax_test/src/Form/JsAjaxTestForm.php, line 27

Class

JsAjaxTestForm

Test form for js_ajax_test

Namespace

Drupal\js_ajax_test\Form

Code

public function buildForm(array $form, FormStateInterface $form_state) {
  $form['#attached']['library'][] = 'js_ajax_test/ajax';
  $form['custom']['#prefix'] = '<div id="js_ajax_test_form_wrapper">';
  $form['custom']['#suffix'] = '</div>';

  // Button to test for the waitForButton() assertion.
  $form['test_button'] = [
    '#type' => 'submit',
    '#value' => $this
      ->t('Add button'),
    '#button_type' => 'primary',
    '#ajax' => [
      'callback' => [
        static::class,
        'addButton',
      ],
      'progress' => [
        'type' => 'throbber',
        'message' => NULL,
      ],
      'wrapper' => 'js_ajax_test_form_wrapper',
    ],
  ];
  return $form;
}