first commit

modules/contact_storage/src/ContactFormViewBuilder.php

@@ -0,0 +1,159 @@
+<?php
+
+namespace Drupal\contact_storage;
+
+use Drupal\Core\Config\Config;
+use Drupal\Core\Entity\EntityFormBuilderInterface;
+use Drupal\Core\Entity\EntityHandlerInterface;
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Entity\EntityViewBuilderInterface;
+use Drupal\Core\Field\FieldItemInterface;
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\Render\RendererInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides a contact form view builder.
+ *
+ * @see \Drupal\contact\Entity\ContactForm
+ */
+class ContactFormViewBuilder implements EntityViewBuilderInterface, EntityHandlerInterface {
+
+  /**
+   * The entity form builder.
+   *
+   * @var \Drupal\Core\Entity\EntityFormBuilderInterface
+   */
+  protected $entityFormBuilder;
+
+  /**
+   * The renderer.
+   *
+   * @var \Drupal\Core\Render\RendererInterface
+   */
+  protected $renderer;
+
+  /**
+   * The contact settings config object.
+   *
+   * @var \Drupal\Core\Config\Config
+   */
+  protected $config;
+
+  /**
+   * The contact message storage.
+   *
+   * @var \Drupal\Core\Entity\EntityStorageInterface
+   */
+  protected $contactMessageStorage;
+
+  /**
+   * Constructs a new contact form view builder.
+   *
+   * @param \Drupal\Core\Entity\EntityFormBuilderInterface $entity_form_builder
+   *   The entity form builder service.
+   * @param \Drupal\Core\Render\RendererInterface $renderer
+   *   The renderer service.
+   * @param \Drupal\Core\Config\Config $config
+   *   The contact settings config object.
+   * @param \Drupal\Core\Entity\EntityStorageInterface $contact_message_storage
+   *   The contact message storage.
+   */
+  public function __construct(EntityFormBuilderInterface $entity_form_builder, RendererInterface $renderer, Config $config, EntityStorageInterface $contact_message_storage) {
+    $this->entityFormBuilder = $entity_form_builder;
+    $this->renderer = $renderer;
+    $this->config = $config;
+    $this->contactMessageStorage = $contact_message_storage;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
+    return new static(
+      $container->get('entity.form_builder'),
+      $container->get('renderer'),
+      $container->get('config.factory')->get('contact.settings'),
+      $container->get('entity_type.manager')->getStorage('contact_message')
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function view(EntityInterface $entity, $view_mode = 'full', $langcode = NULL) {
+    if ($entity->status()) {
+      $message = $this->contactMessageStorage->create([
+        'contact_form' => $entity->id(),
+      ]);
+
+      $form = $this->entityFormBuilder->getForm($message);
+      $form['#title'] = $entity->label();
+      $form['#cache']['contexts'][] = 'user.permissions';
+
+      $this->renderer->addCacheableDependency($form, $this->config);
+    }
+    else {
+      // Form disabled, display a custom message using a template.
+      $form['disabled_form_error'] = [
+        '#theme' => 'contact_storage_disabled_form',
+        '#contact_form' => $entity,
+        '#redirect_uri' => $entity->getThirdPartySetting('contact_storage', 'redirect_uri', ''),
+        '#disabled_form_message' => $entity->getThirdPartySetting('contact_storage', 'disabled_form_message', t('This contact form has been disabled.')),
+      ];
+    }
+    // Add required cacheability metadata from the contact form entity, so that
+    // changing it invalidates the cache.
+    $this->renderer->addCacheableDependency($form, $entity);
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function viewMultiple(array $entities = [], $view_mode = 'full', $langcode = NULL) {
+    $build = [];
+    foreach ($entities as $key => $entity) {
+      $build[$key] = $this->view($entity, $view_mode, $langcode);
+    }
+    return $build;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function resetCache(array $entities = NULL) {
+    // Intentionally empty.
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCacheTags() {
+    // Intentionally empty.
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildComponents(array &$build, array $entities, array $displays, $view_mode) {
+    throw new \LogicException();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function viewField(FieldItemListInterface $items, $display_options = []) {
+    throw new \LogicException();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function viewFieldItem(FieldItemInterface $item, $display_options = []) {
+    throw new \LogicException();
+  }
+
+}