entity_embed.module

<?php

/**
 * @file
 * Framework for allowing entities to be embedded using CKEditor plugin and text
 * format.
 */

/**
 * Implements hook_entity_embed_display_plugins_alter() on behalf of file.module.
 */
function file_entity_embed_display_plugins_alter(array &$plugins) {
  // The RSS enclosure field formatter is not usable for Entity Embed.
  unset($plugins['file:file_rss_enclosure']);
}

/**
 * Implements hook_entity_embed_display_plugins_alter() on behalf of taxonomy.module.
 */
function taxonomy_entity_embed_display_plugins_alter(array &$plugins) {
  // The RSS category field formatter is not usable for Entity Embed.
  unset($plugins['entity_reference:entity_reference_rss_category']);
}

/**
 * Implements hook_entity_embed_display_plugins_for_context_alter().
 *
 * The 'Rendered entity' formatter can not be used for files unless the
 * file_entity module is available.
 * @see https://www.drupal.org/node/2468387
 * @todo Remove when https://www.drupal.org/node/2567919 is fixed in core.
 */
function entity_embed_entity_embed_display_plugins_for_context_alter(array &$definitions, array $context) {
  if ($context['entity_type'] === 'file' && !\Drupal::moduleHandler()->moduleExists('file_entity')) {
    unset($definitions['entity_reference:entity_reference_entity_view']);
  }
}