ajax_forms_test.module

<?php

/**
 * @file
 * Mock module for Ajax forms testing.
 */
use Drupal\Core\Ajax\AddCssCommand;
use Drupal\Core\Ajax\AfterCommand;
use Drupal\Core\Ajax\AjaxResponse;
use Drupal\Core\Ajax\AlertCommand;
use Drupal\Core\Ajax\AnnounceCommand;
use Drupal\Core\Ajax\AppendCommand;
use Drupal\Core\Ajax\BeforeCommand;
use Drupal\Core\Ajax\ChangedCommand;
use Drupal\Core\Ajax\CssCommand;
use Drupal\Core\Ajax\DataCommand;
use Drupal\Core\Ajax\HtmlCommand;
use Drupal\Core\Ajax\InsertCommand;
use Drupal\Core\Ajax\InvokeCommand;
use Drupal\Core\Ajax\PrependCommand;
use Drupal\Core\Ajax\RemoveCommand;
use Drupal\Core\Ajax\RestripeCommand;
use Drupal\Core\Ajax\SettingsCommand;
use Drupal\Core\Form\FormStateInterface;

/**
 * Ajax form callback: Selects 'after'.
 */
function ajax_forms_test_advanced_commands_after_callback($form, FormStateInterface $form_state) {
  $selector = '#after_div';
  $response = new AjaxResponse();
  $response
    ->addCommand(new AfterCommand($selector, "This will be placed after"));
  return $response;
}

/**
 * Ajax form callback: Selects 'alert'.
 */
function ajax_forms_test_advanced_commands_alert_callback($form, FormStateInterface $form_state) {
  $response = new AjaxResponse();
  $response
    ->addCommand(new AlertCommand('Alert'));
  return $response;
}

/**
 * Ajax form callback: Selects 'announce' with no priority specified.
 */
function ajax_forms_test_advanced_commands_announce_callback($form, FormStateInterface $form_state) {
  return (new AjaxResponse())
    ->addCommand(new AnnounceCommand('Default announcement.'));
}

/**
 * Ajax form callback: Selects 'announce' with 'polite' priority.
 */
function ajax_forms_test_advanced_commands_announce_polite_callback($form, FormStateInterface $form_state) {
  return (new AjaxResponse())
    ->addCommand(new AnnounceCommand('Polite announcement.', 'polite'));
}

/**
 * Ajax form callback: Selects 'announce' with 'assertive' priority.
 */
function ajax_forms_test_advanced_commands_announce_assertive_callback($form, FormStateInterface $form_state) {
  return (new AjaxResponse())
    ->addCommand(new AnnounceCommand('Assertive announcement.', 'assertive'));
}

/**
 * Ajax form callback: Selects 'announce' with two announce commands returned.
 */
function ajax_forms_test_advanced_commands_double_announce_callback($form, FormStateInterface $form_state) {
  return (new AjaxResponse())
    ->addCommand(new AnnounceCommand('Assertive announcement.', 'assertive'))
    ->addCommand(new AnnounceCommand('Another announcement.'));
}

/**
 * Ajax form callback: Selects 'append'.
 */
function ajax_forms_test_advanced_commands_append_callback($form, FormStateInterface $form_state) {
  $selector = '#append_div';
  $response = new AjaxResponse();
  $response
    ->addCommand(new AppendCommand($selector, "Appended text"));
  return $response;
}

/**
 * Ajax form callback: Selects 'before'.
 */
function ajax_forms_test_advanced_commands_before_callback($form, FormStateInterface $form_state) {
  $selector = '#before_div';
  $response = new AjaxResponse();
  $response
    ->addCommand(new BeforeCommand($selector, "Before text"));
  return $response;
}

/**
 * Ajax form callback: Selects 'changed'.
 */
function ajax_forms_test_advanced_commands_changed_callback($form, FormStateInterface $form_state) {
  $response = new AjaxResponse();
  $response
    ->addCommand(new ChangedCommand('#changed_div'));
  return $response;
}

/**
 * Ajax form callback: Selects 'changed' with asterisk marking inner div.
 */
function ajax_forms_test_advanced_commands_changed_asterisk_callback($form, FormStateInterface $form_state) {
  $response = new AjaxResponse();
  $response
    ->addCommand(new ChangedCommand('#changed_div', '#changed_div_mark_this'));
  return $response;
}

/**
 * Ajax form callback: Selects 'css'.
 */
function ajax_forms_test_advanced_commands_css_callback($form, FormStateInterface $form_state) {
  $selector = '#css_div';
  $color = 'blue';
  $response = new AjaxResponse();
  $response
    ->addCommand(new CssCommand($selector, [
    'background-color' => $color,
  ]));
  return $response;
}

/**
 * Ajax form callback: Selects 'data'.
 */
function ajax_forms_test_advanced_commands_data_callback($form, FormStateInterface $form_state) {
  $selector = '#data_div';
  $response = new AjaxResponse();
  $response
    ->addCommand(new DataCommand($selector, 'testkey', 'test_value'));
  return $response;
}

/**
 * Ajax form callback: Selects 'invoke'.
 */
function ajax_forms_test_advanced_commands_invoke_callback($form, FormStateInterface $form_state) {
  $response = new AjaxResponse();
  $response
    ->addCommand(new InvokeCommand('#invoke_div', 'addClass', [
    'error',
  ]));
  return $response;
}

/**
 * Ajax form callback: Selects 'html'.
 */
function ajax_forms_test_advanced_commands_html_callback($form, FormStateInterface $form_state) {
  $response = new AjaxResponse();
  $response
    ->addCommand(new HtmlCommand('#html_div', 'replacement text'));
  return $response;
}

/**
 * Ajax form callback: Selects 'insert'.
 */
function ajax_forms_test_advanced_commands_insert_callback($form, FormStateInterface $form_state) {
  $response = new AjaxResponse();
  $response
    ->addCommand(new InsertCommand('#insert_div', 'insert replacement text'));
  return $response;
}

/**
 * Ajax form callback: Selects 'prepend'.
 */
function ajax_forms_test_advanced_commands_prepend_callback($form, FormStateInterface $form_state) {
  $response = new AjaxResponse();
  $response
    ->addCommand(new PrependCommand('#prepend_div', "prepended text"));
  return $response;
}

/**
 * Ajax form callback: Selects 'remove'.
 */
function ajax_forms_test_advanced_commands_remove_callback($form, FormStateInterface $form_state) {
  $response = new AjaxResponse();
  $response
    ->addCommand(new RemoveCommand('#remove_text'));
  return $response;
}

/**
 * Ajax form callback: Selects 'restripe'.
 */
function ajax_forms_test_advanced_commands_restripe_callback($form, FormStateInterface $form_state) {
  $response = new AjaxResponse();
  $response
    ->addCommand(new RestripeCommand('#restripe_table'));
  return $response;
}

/**
 * Ajax form callback: Selects 'settings'.
 */
function ajax_forms_test_advanced_commands_settings_callback($form, FormStateInterface $form_state) {
  $setting['ajax_forms_test']['foo'] = 42;
  $response = new AjaxResponse();
  $response
    ->addCommand(new SettingsCommand($setting));
  return $response;
}

/**
 * Ajax callback for 'add_css'.
 */
function ajax_forms_test_advanced_commands_add_css_callback($form, FormStateInterface $form_state) {
  $response = new AjaxResponse();
  $response
    ->addCommand(new AddCssCommand([
    [
      'href' => 'my/file.css',
      'media' => 'all',
    ],
    [
      'href' => 'https://example.com/css?family=Open+Sans',
      'media' => 'all',
    ],
  ]));
  return $response;
}

/**
 * Ajax callback for 'add_css' that uses legacy string parameter.
 *
 * @todo Remove in Drupal 11.0.0 https://www.drupal.org/i/3339374
 */
function ajax_forms_test_advanced_commands_add_css_legacy_callback($form, FormStateInterface $form_state) {
  $response = new AjaxResponse();
  $response
    ->addCommand(new AddCssCommand("<link rel='stylesheet' href='my/file.css' media='all' />"));
  return $response;
}

/**
 * Ajax form callback: Selects the 'driver_text' element of the validation form.
 */
function ajax_forms_test_validation_form_callback($form, FormStateInterface $form_state) {
  \Drupal::messenger()
    ->addStatus("ajax_forms_test_validation_form_callback invoked");
  \Drupal::messenger()
    ->addStatus(t("Callback: driver_text=%driver_text, spare_required_field=%spare_required_field", [
    '%driver_text' => $form_state
      ->getValue('driver_text'),
    '%spare_required_field' => $form_state
      ->getValue('spare_required_field'),
  ]));
  return [
    '#markup' => '<div id="message_area">ajax_forms_test_validation_form_callback at ' . date('c') . '</div>',
  ];
}

/**
 * Ajax form callback: Selects the 'driver_number' element of the validation form.
 */
function ajax_forms_test_validation_number_form_callback($form, FormStateInterface $form_state) {
  \Drupal::messenger()
    ->addStatus("ajax_forms_test_validation_number_form_callback invoked");
  \Drupal::messenger()
    ->addStatus(t("Callback: driver_number=%driver_number, spare_required_field=%spare_required_field", [
    '%driver_number' => $form_state
      ->getValue('driver_number'),
    '%spare_required_field' => $form_state
      ->getValue('spare_required_field'),
  ]));
  return [
    '#markup' => '<div id="message_area_number">ajax_forms_test_validation_number_form_callback at ' . date('c') . '</div>',
  ];
}

/**
 * AJAX form callback: Selects for the ajax_forms_test_lazy_load_form() form.
 */
function ajax_forms_test_lazy_load_form_ajax($form, FormStateInterface $form_state) {
  $build = [
    '#markup' => 'new content',
  ];
  if ($form_state
    ->getValue('add_files')) {
    $build['#attached']['library'][] = 'system/admin';
    $build['#attached']['library'][] = 'system/drupal.system';
    $build['#attached']['drupalSettings']['ajax_forms_test_lazy_load_form_submit'] = 'executed';
  }
  return $build;
}