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<?php
namespace Drupal\menu_ui\Form;
use Drupal\Core\DependencyInjection\ClassResolverInterface;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Menu\MenuLinkInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Defines a generic edit form for all menu link plugin types.
*
* The menu link plugin defines which class defines the corresponding form.
*
* @see \Drupal\Core\Menu\MenuLinkInterface::getFormClass()
*/
class MenuLinkEditForm extends FormBase {
/**
* The class resolver.
*
* @var \Drupal\Core\DependencyInjection\ClassResolverInterface
*/
protected $classResolver;
/**
* Constructs a MenuLinkEditForm object.
*
* @param \Drupal\Core\DependencyInjection\ClassResolverInterface $class_resolver
* The class resolver.
*/
public function __construct(ClassResolverInterface $class_resolver) {
$this->classResolver = $class_resolver;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
return new static(
$container->get('class_resolver')
);
}
/**
* {@inheritdoc}
*/
public function getFormId() {
return 'menu_link_edit';
}
/**
* {@inheritdoc}
*
* @param \Drupal\Core\Menu\MenuLinkInterface $menu_link_plugin
* The plugin instance to use for this form.
*/
public function buildForm(array $form, FormStateInterface $form_state, MenuLinkInterface $menu_link_plugin = NULL) {
$form['menu_link_id'] = [
'#type' => 'value',
'#value' => $menu_link_plugin->getPluginId(),
];
$class_name = $menu_link_plugin->getFormClass();
$form['#plugin_form'] = $this->classResolver->getInstanceFromDefinition($class_name);
$form['#plugin_form']->setMenuLinkInstance($menu_link_plugin);
$form += $form['#plugin_form']->buildConfigurationForm($form, $form_state);
$form['actions'] = ['#type' => 'actions'];
$form['actions']['submit'] = [
'#type' => 'submit',
'#value' => $this->t('Save'),
'#button_type' => 'primary',
];
return $form;
}
/**
* {@inheritdoc}
*/
public function validateForm(array &$form, FormStateInterface $form_state) {
$form['#plugin_form']->validateConfigurationForm($form, $form_state);
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
$link = $form['#plugin_form']->submitConfigurationForm($form, $form_state);
drupal_set_message($this->t('The menu link has been saved.'));
$form_state->setRedirect(
'entity.menu.edit_form',
['menu' => $link->getMenuName()]
);
}
}