Issue #1946318 by kim.pepper: Convert confirm_form() in action.admin.inc to the new form interface.

core/modules/action/action.admin.inc

@@ -5,38 +5,6 @@
  * Admin page callbacks for the Action module.
  */
 
-/**
- * Creates the form for confirmation of deleting an action.
- *
- * @see action_admin_delete_form_submit()
- * @ingroup forms
- */
-function action_admin_delete_form($form, &$form_state, $action) {
-  $form['aid'] = array(
-    '#type' => 'hidden',
-    '#value' => $action->aid,
-  );
-  return confirm_form($form,
-    t('Are you sure you want to delete the action %action?', array('%action' => $action->label)),
-    'admin/config/system/actions',
-    t('This cannot be undone.'),
-    t('Delete'),
-    t('Cancel')
-  );
-}
-
-/**
- * Form submission handler for action_admin_delete_form().
- */
-function action_admin_delete_form_submit($form, &$form_state) {
-  $aid = $form_state['values']['aid'];
-  $action = action_load($aid);
-  action_delete($aid);
-  watchdog('user', 'Deleted action %aid (%action)', array('%aid' => $aid, '%action' => $action->label));
-  drupal_set_message(t('Action %action was deleted', array('%action' => $action->label)));
-  $form_state['redirect'] = 'admin/config/system/actions';
-}
-
 /**
  * Post-deletion operations for deleting action orphans.
  *
@@ -48,4 +16,3 @@ function action_admin_delete_orphans_post($orphaned) {
     drupal_set_message(t("Deleted orphaned action (%action).", array('%action' => $callback)));
   }
 }
-

core/modules/action/action.module

@@ -75,10 +75,7 @@ function action_menu() {
   $items['admin/config/system/actions/delete/%action'] = array(
     'title' => 'Delete action',
     'description' => 'Delete an action.',
-    'page callback' => 'drupal_get_form',
-    'page arguments' => array('action_admin_delete_form', 5),
-    'access arguments' => array('administer actions'),
-    'file' => 'action.admin.inc',
+    'route_name' => 'action_delete',
   );
   return $items;
 }

core/modules/action/action.routing.yml

@@ -18,3 +18,11 @@ action_admin_configure:
     _form: '\Drupal\action\Form\ActionAdminConfigureForm'
   requirements:
     _permission: 'administer actions'
+
+action_delete:
+  pattern: 'admin/config/system/actions/delete/{action}'
+  defaults:
+    _form: '\Drupal\action\Form\DeleteForm'
+  requirements:
+    _permission: 'administer actions'
+

core/modules/action/lib/Drupal/action/Form/DeleteForm.php

@@ -0,0 +1,76 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\action\Form\DeleteForm.
+ */
+
+namespace Drupal\action\Form;
+
+use Drupal\Core\Form\ConfirmFormBase;
+
+/**
+ * Builds a form to delete an action.
+ */
+class DeleteForm extends ConfirmFormBase {
+
+  /**
+   * The action to be deleted.
+   *
+   * @var \stdClass
+   */
+  protected $action;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getQuestion() {
+    return t('Are you sure you want to delete the action %action?', array('%action' => $this->action->label));
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getConfirmText() {
+    return t('Delete');
+  }
+
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getCancelPath() {
+    return 'admin/config/system/actions/manage';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormID() {
+    return 'action_admin_delete_form';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, array &$form_state, $action = NULL) {
+
+    $this->action = action_load($action);
+
+    return parent::buildForm($form, $form_state);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, array &$form_state) {
+
+    action_delete($this->action->aid);
+
+    watchdog('user', 'Deleted action %aid (%action)', array('%aid' => $this->action->aid, '%action' => $this->action->label));
+    drupal_set_message(t('Action %action was deleted', array('%action' => $this->action->label)));
+
+    $form_state['redirect'] = 'admin/config/system/actions/manage';
+  }
+
+}