class JobItemAbortForm

class JobItemAbortForm extends ContentEntityConfirmFormBase {

  /**
   * {@inheritdoc}
   */
  public function getQuestion() {
    return $this
      ->t('Are you sure you want to abort the job item %title?', array(
      '%title' => $this->entity
        ->label(),
    ));
  }

  /**
   * {@inheritdoc}
   */
  public function getDescription() {
    return $this
      ->t('Aborted job items can no longer be accepted. The provider will not be notified.');
  }

  /**
   * {@inheritdoc}
   */
  public function getCancelUrl() {
    return $this->entity
      ->toUrl();
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {

    /** @var \Drupal\tmgmt\Entity\JobItem $entity */
    $entity = $this->entity;
    try {
      if (!$entity
        ->abortTranslation()) {
        tmgmt_write_request_messages($entity);
      }
    } catch (TMGMTException $e) {
      $this
        ->messenger()
        ->addError(t('Job item cannot be aborted: %error.', array(
        '%error' => $e
          ->getMessage(),
      )));
    }
    $form_state
      ->setRedirectUrl($this->entity
      ->toUrl());
  }

}