protected function MediaImageDecorator::getMediaImageSourceField in Entity Embed 8

Get image field from source config.

Parameters

\Drupal\Core\Entity\EntityInterface $entity: Embedded entity.

Return value

string|null String of image field name.

3 calls to MediaImageDecorator::getMediaImageSourceField()

MediaImageDecorator::build in src/Plugin/entity_embed/EntityEmbedDisplay/MediaImageDecorator.php

Builds the renderable array for this Entity Embed display plugin.

MediaImageDecorator::buildConfigurationForm in src/Plugin/entity_embed/EntityEmbedDisplay/MediaImageDecorator.php

Form constructor.

MediaImageDecorator::submitConfigurationForm in src/Plugin/entity_embed/EntityEmbedDisplay/MediaImageDecorator.php

Form submission handler.

File

src/Plugin/entity_embed/EntityEmbedDisplay/MediaImageDecorator.php, line 244

Class

MediaImageDecorator

Decorator on all EntityEmbedDisplays that adds alt and title overriding.

Namespace

Drupal\entity_embed\Plugin\entity_embed\EntityEmbedDisplay

Code

protected function getMediaImageSourceField(EntityInterface $entity) {
  if (!$entity instanceof MediaInterface) {
    return NULL;
  }
  $field_definition = $entity
    ->getSource()
    ->getSourceFieldDefinition($entity->bundle->entity);
  $item_class = $field_definition
    ->getItemDefinition()
    ->getClass();
  if ($item_class == ImageItem::class || is_subclass_of($item_class, ImageItem::class)) {
    return $field_definition
      ->getName();
  }
  return NULL;
}