--- /dev/null
+<?php
+
+namespace Drupal\ctools\Plugin\Block;
+
+use Drupal\Core\Block\BlockBase;
+use Drupal\Core\Cache\CacheableMetadata;
+use Drupal\Core\Entity\EntityManagerInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\Core\Plugin\ContextAwarePluginInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides a block to view a specific entity.
+ *
+ * @Block(
+ * id = "entity_view",
+ * deriver = "Drupal\ctools\Plugin\Deriver\EntityViewDeriver",
+ * )
+ */
+class EntityView extends BlockBase implements ContextAwarePluginInterface, ContainerFactoryPluginInterface {
+
+ /**
+ * The entity manager.
+ *
+ * @var \Drupal\Core\Entity\EntityManagerInterface
+ */
+ protected $entityManager;
+
+ /**
+ * Constructs a new EntityView.
+ *
+ * @param array $configuration
+ * A configuration array containing information about the plugin instance.
+ * @param string $plugin_id
+ * The plugin ID for the plugin instance.
+ * @param mixed $plugin_definition
+ * The plugin implementation definition.
+ * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
+ * The entity manager.
+ */
+ public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityManagerInterface $entity_manager) {
+ parent::__construct($configuration, $plugin_id, $plugin_definition);
+
+ $this->entityManager = $entity_manager;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+ return new static(
+ $configuration,
+ $plugin_id,
+ $plugin_definition,
+ $container->get('entity.manager')
+ );
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function defaultConfiguration() {
+ return [
+ 'view_mode' => 'default',
+ ];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function blockForm($form, FormStateInterface $form_state) {
+ $form['view_mode'] = [
+ '#type' => 'select',
+ '#options' => $this->entityManager->getViewModeOptions($this->getDerivativeId()),
+ '#title' => $this->t('View mode'),
+ '#default_value' => $this->configuration['view_mode'],
+ ];
+ return $form;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function blockSubmit($form, FormStateInterface $form_state) {
+ $this->configuration['view_mode'] = $form_state->getValue('view_mode');
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function build() {
+ /** @var $entity \Drupal\Core\Entity\EntityInterface */
+ $entity = $this->getContextValue('entity');
+
+ $view_builder = $this->entityManager->getViewBuilder($entity->getEntityTypeId());
+ $build = $view_builder->view($entity, $this->configuration['view_mode']);
+
+ CacheableMetadata::createFromObject($this->getContext('entity'))
+ ->applyTo($build);
+
+ return $build;
+ }
+
+}