--- /dev/null
+<?php
+
+namespace Drupal\ctools\Form;
+
+
+use Drupal\Core\Form\ConfirmFormBase;
+use Drupal\Core\Form\ConfirmFormHelper;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\ctools\TypedDataResolver;
+use Drupal\user\SharedTempStoreFactory;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+abstract class ResolverRelationshipDelete extends ConfirmFormBase {
+
+ /**
+ * @var \Drupal\user\SharedTempStoreFactory
+ */
+ protected $tempstore;
+
+ /**
+ * @var \Drupal\ctools\TypedDataResolver
+ */
+ protected $resolver;
+
+ /**
+ * @var string
+ */
+ protected $tempstore_id;
+
+ /**
+ * @var string;
+ */
+ protected $machine_name;
+
+ /**
+ * @var string;
+ */
+ protected $id;
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container) {
+ return new static($container->get('user.shared_tempstore'), $container->get('ctools.typed_data.resolver'));
+ }
+
+ /**
+ * @param \Drupal\user\SharedTempStoreFactory $tempstore
+ * The shared tempstore.
+ * @param \Drupal\ctools\TypedDataResolver $resolver
+ * The the typed data resolver.
+ */
+ public function __construct(SharedTempStoreFactory $tempstore, TypedDataResolver $resolver) {
+ $this->tempstore = $tempstore;
+ $this->resolver = $resolver;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getFormId() {
+ return 'ctools_resolver_relationship_delete';
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getQuestion($id = NULL, $cached_values = []) {
+ $context = $this->getContexts($cached_values)[$id];
+ return $this->t('Are you sure you want to delete the @label relationship?', [
+ '@label' => $context->getContextDefinition()->getLabel(),
+ ]);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ abstract public function getCancelUrl($cached_values = []);
+
+ /**
+ * {@inheritdoc}
+ */
+ public function buildForm(array $form, FormStateInterface $form_state, $id = NULL, $tempstore_id = NULL, $machine_name = NULL) {
+ $this->tempstore_id = $tempstore_id;
+ $this->machine_name = $machine_name;
+ $this->id = $id;
+
+ $cached_values = $this->tempstore->get($this->tempstore_id)->get($this->machine_name);
+ $form ['#title'] = $this->getQuestion($id, $cached_values);
+
+ $form ['#attributes']['class'][] = 'confirmation';
+ $form ['description'] = array('#markup' => $this->getDescription());
+ $form [$this->getFormName()] = array('#type' => 'hidden', '#value' => 1);
+
+ // By default, render the form using theme_confirm_form().
+ if (!isset($form ['#theme'])) {
+ $form ['#theme'] = 'confirm_form';
+ }
+ $form['actions'] = array('#type' => 'actions');
+ $form['actions'] += $this->actions($form, $form_state, $cached_values);
+ return $form;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function submitForm(array &$form, FormStateInterface $form_state) {
+ $cached_values = $this->tempstore->get($this->tempstore_id)->get($this->machine_name);
+ $form_state->setRedirectUrl($this->getCancelUrl($cached_values));
+ }
+
+ /**
+ * A custom form actions method.
+ *
+ * @param array $form
+ * The form array.
+ * @param \Drupal\Core\Form\FormStateInterface $form_state
+ * The current form state.
+ * @param $cached_values
+ * The current wizard cached values.
+ *
+ * @return array
+ */
+ protected function actions(array $form, FormStateInterface $form_state, $cached_values) {
+ return array(
+ 'submit' => array(
+ '#type' => 'submit',
+ '#value' => $this->getConfirmText(),
+ '#validate' => array(
+ array($this, 'validate'),
+ ),
+ '#submit' => array(
+ array($this, 'submitForm'),
+ ),
+ ),
+ 'cancel' => ConfirmFormHelper::buildCancelLink($this, $this->getRequest()),
+ );
+ }
+
+ /**
+ * Extract contexts from the cached values.
+ *
+ * @param array $cached_values
+ * The cached values.
+ *
+ * @return \Drupal\Core\Plugin\Context\ContextInterface[]
+ */
+ abstract public function getContexts($cached_values);
+
+}