/**
  * {@inheritdoc}
  */
 public function buildOperations(EntityInterface $entity)
 {
     $build = parent::buildOperations($entity);
     $build['#links']['clone'] = array('title' => $this->t('Clone'), 'url' => Url::fromRoute('entity.uc_tax_rate.clone', ['uc_tax_rate' => $entity->id()]), 'weight' => 10);
     uasort($build['#links'], 'Drupal\\Component\\Utility\\SortArray::sortByWeightElement');
     return $build;
 }
 public function buildOperations(CssInjectorInterface $entity)
 {
     $operations = parent::buildOperations($entity);
     // todo: enable/disable links callbacks.
     //    if (!$entity->isEnabled()) {
     //      $url = Url::fromRoute('entity.css_injector.enable_form', array('css_injector' => $entity->id));
     //      $operations['#links']['enable'] = [
     //        'title' => t('Enable'),
     //        'url' => $url,
     //        'weight' => -10,
     //      ];
     //    }
     //    else {
     //      $url = Url::fromRoute('entity.css_injector.enable_form', array('css_injector' => $entity->id));
     //      $operations['#links']['disable'] = [
     //        'title' => t('Disable'),
     //        'url' => $url,
     //        'weight' => -10,
     //      ];
     //    }
     return $operations;
 }