public function AjaxTestForm::buildForm in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/system/tests/modules/ajax_test/src/Form/AjaxTestForm.php \Drupal\ajax_test\Form\AjaxTestForm::buildForm()
2. 10 core/modules/system/tests/modules/ajax_test/src/Form/AjaxTestForm.php \Drupal\ajax_test\Form\AjaxTestForm::buildForm()

Form constructor.

Parameters

array $form: An associative array containing the structure of the form.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Return value

array The form structure.

Overrides FormInterface::buildForm

File

core/modules/system/tests/modules/ajax_test/src/Form/AjaxTestForm.php, line 26

Class

AjaxTestForm

Dummy form for testing DialogRenderer with _form routes.

Namespace

Drupal\ajax_test\Form

Code

public function buildForm(array $form, FormStateInterface $form_state) {
  $form['#action'] = Url::fromRoute('ajax_test.dialog')
    ->toString();
  $form['description'] = [
    '#markup' => '<p>' . $this
      ->t("Ajax Form contents description.") . '</p>',
  ];
  $form['actions'] = [
    '#type' => 'actions',
  ];
  $form['actions']['submit'] = [
    '#type' => 'submit',
    '#value' => $this
      ->t('Do it'),
  ];
  $form['actions']['preview'] = [
    '#type' => 'submit',
    '#value' => $this
      ->t('Preview'),
    // No regular submit-handler. This form only works via JavaScript.
    '#submit' => [],
    '#ajax' => [
      // This means the ::preview() method on this class would be invoked in
      // case of a click event. However, since Drupal core's test runner only
      // is able to execute PHP, not JS, there is no point in actually
      // implementing this method, because we can never let it be called from
      // JS; we'd have to manually call it from PHP, at which point we would
      // not actually be testing it.
      // Therefore we consciously choose to not implement this method, because
      // we cannot meaningfully test it anyway.
      'callback' => '::preview',
      'event' => 'click',
    ],
  ];
  return $form;
}