function AjaxTestImageEffect::ajaxCallback

AJAX callback.

File

core/modules/image/tests/modules/image_module_test/src/Plugin/ImageEffect/AjaxTestImageEffect.php, line 57

Class

AjaxTestImageEffect

Provides a test effect using Ajax in the configuration form.

Namespace

Code

public function ajaxCallback($form, FormStateInterface $form_state) {
    $item = [
        '#type' => 'item',
        '#title' => $this->t('Ajax value'),
        '#markup' => microtime(),
    ];
    $response = new AjaxResponse();
    $response->addCommand(new HtmlCommand('#ajax-value', $item));
    return $response;
}