BlazyEntityBase.php in Blazy 8

Namespace

Drupal\blazy\Dejavu

File

src/Dejavu/BlazyEntityBase.php

<?php

namespace Drupal\blazy\Dejavu;

use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Field\Plugin\Field\FieldFormatter\EntityReferenceFormatterBase;

/**
 * Base class for entity reference formatters without field details.
 */
abstract class BlazyEntityBase extends EntityReferenceFormatterBase {

  /**
   * Returns media contents.
   */
  public function buildElements(array &$build, $entities, $langcode) {
    foreach ($entities as $delta => $entity) {

      // Protect ourselves from recursive rendering.
      static $depth = 0;
      $depth++;
      if ($depth > 20) {
        $this->loggerFactory
          ->get('entity')
          ->error('Recursive rendering detected when rendering entity @entity_type @entity_id. Aborting rendering.', [
          '@entity_type' => $entity
            ->getEntityTypeId(),
          '@entity_id' => $entity
            ->id(),
        ]);
        return $build;
      }
      $build['settings']['delta'] = $delta;
      if ($entity
        ->id()) {
        $this
          ->buildElement($build, $entity, $langcode);

        // Add the entity to cache dependencies so to clear when it is updated.
        $this
          ->manager()
          ->getRenderer()
          ->addCacheableDependency($build['items'][$delta], $entity);
      }
      else {
        $this->referencedEntities = NULL;

        // This is an "auto_create" item.
        $build['items'][$delta] = [
          '#markup' => $entity
            ->label(),
        ];
      }
      $depth = 0;
    }

    // Supports Blazy formatter multi-breakpoint images if available.
    if (empty($build['settings']['vanilla'])) {
      $this
        ->formatter()
        ->isBlazy($build['settings'], $build['items'][0]);
    }
  }

  /**
   * Returns item contents.
   */
  public function buildElement(array &$build, $entity, $langcode) {
    $view_mode = empty($build['settings']['view_mode']) ? 'full' : $build['settings']['view_mode'];
    $delta = $build['settings']['delta'];
    $build['items'][$delta] = $this
      ->manager()
      ->getEntityTypeManager()
      ->getViewBuilder($entity
      ->getEntityTypeId())
      ->view($entity, $view_mode, $langcode);
  }

  /**
   * {@inheritdoc}
   */
  public function settingsForm(array $form, FormStateInterface $form_state) {
    $element = [];
    $definition = $this
      ->getScopedFormElements();
    $definition['_views'] = isset($form['field_api_classes']);
    $this
      ->admin()
      ->buildSettingsForm($element, $definition);
    return $element;
  }

  /**
   * Defines the scope for the form elements.
   */
  public function getScopedFormElements() {
    $field = $this->fieldDefinition;
    $entity_type = $field
      ->getTargetEntityTypeId();
    $target_type = $this
      ->getFieldSetting('target_type');
    $views_ui = $this
      ->getFieldSetting('handler') == 'default';
    $bundles = $views_ui ? [] : $this
      ->getFieldSetting('handler_settings')['target_bundles'];
    return [
      'current_view_mode' => $this->viewMode,
      'entity_type' => $entity_type,
      'field_type' => $field
        ->getType(),
      'field_name' => $field
        ->getName(),
      'plugin_id' => $this
        ->getPluginId(),
      'settings' => $this
        ->getSettings(),
      'target_bundles' => $bundles,
      'target_type' => $target_type,
      'view_mode' => $this->viewMode,
    ];
  }

}

Classes

Name	Description
BlazyEntityBase	Base class for entity reference formatters without field details.