--- /dev/null
+<?php
+
+namespace Drupal\slick_ui\Form;
+
+use Drupal\Core\Url;
+use Drupal\Core\Entity\EntityConfirmFormBase;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Builds the form to delete a Slick optionset.
+ */
+class SlickDeleteForm extends EntityConfirmFormBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getQuestion() {
+ return $this->t('Are you sure you want to delete the Slick optionset %label?', ['%label' => $this->entity->label()]);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getCancelUrl() {
+ return new Url('entity.slick.collection');
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getConfirmText() {
+ return $this->t('Delete');
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function submitForm(array &$form, FormStateInterface $form_state) {
+ $this->entity->delete();
+
+ drupal_set_message($this->t('The Slick optionset %label has been deleted.', ['%label' => $this->entity->label()]));
+ $this->logger('user')->notice('Deleted optionset %oid (%label)', ['%oid' => $this->entity->id(), '%label' => $this->entity->label()]);
+
+ $form_state->setRedirectUrl($this->getCancelUrl());
+ }
+
+}