function menu_ui_form_node_type_form_alter

Implements hook_form_FORM_ID_alter() for \Drupal\node\NodeTypeForm.

Adds menu options to the node type form.

See also

NodeTypeForm::form()

menu_ui_form_node_type_form_builder()

File

core/modules/menu_ui/menu_ui.module, line 351

Code

function menu_ui_form_node_type_form_alter(&$form, FormStateInterface $form_state) {
    
    /** @var \Drupal\Core\Menu\MenuParentFormSelectorInterface $menu_parent_selector */
    $menu_parent_selector = \Drupal::service('menu.parent_form_selector');
    $menu_options = array_map(function (MenuInterface $menu) {
        return $menu->label();
    }, Menu::loadMultiple());
    asort($menu_options);
    
    /** @var \Drupal\node\NodeTypeInterface $type */
    $type = $form_state->getFormObject()
        ->getEntity();
    $form['menu'] = [
        '#type' => 'details',
        '#title' => t('Menu settings'),
        '#attached' => [
            'library' => [
                'menu_ui/drupal.menu_ui.admin',
            ],
        ],
        '#group' => 'additional_settings',
    ];
    $form['menu']['menu_options'] = [
        '#type' => 'checkboxes',
        '#title' => t('Available menus'),
        '#default_value' => $type->getThirdPartySetting('menu_ui', 'available_menus', [
            'main',
        ]),
        '#options' => $menu_options,
        '#description' => t('The menus available to place links in for this content type.'),
    ];
    // @todo See if we can avoid pre-loading all options by changing the form or
    //   using a #process callback. https://www.drupal.org/node/2310319
    //   To avoid an 'illegal option' error after saving the form we have to load
    //   all available menu parents. Otherwise, it is not possible to dynamically
    //   add options to the list using ajax.
    $options_cacheability = new CacheableMetadata();
    $options = $menu_parent_selector->getParentSelectOptions('', NULL, $options_cacheability);
    $form['menu']['menu_parent'] = [
        '#type' => 'select',
        '#title' => t('Default parent link'),
        '#default_value' => $type->getThirdPartySetting('menu_ui', 'parent', 'main:'),
        '#options' => $options,
        '#description' => t('Choose the menu link to be the default parent for a new link in the content authoring form.'),
        '#attributes' => [
            'class' => [
                'menu-title-select',
            ],
        ],
    ];
    $options_cacheability->applyTo($form['menu']['menu_parent']);
    $form['#validate'][] = 'menu_ui_form_node_type_form_validate';
    $form['#entity_builders'][] = 'menu_ui_form_node_type_form_builder';
}