--- /dev/null
+<?php
+
+namespace Drupal\config_translation\Controller;
+
+use Drupal\Component\Utility\Unicode;
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Entity\EntityManagerInterface;
+use Drupal\Core\Entity\EntityStorageInterface;
+use Drupal\Core\Entity\EntityTypeInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Defines the config translation list builder for field entities.
+ */
+class ConfigTranslationFieldListBuilder extends ConfigTranslationEntityListBuilder {
+
+ /**
+ * The name of the entity type the fields are attached to.
+ *
+ * @var string
+ */
+ protected $baseEntityType = '';
+
+ /**
+ * An array containing the base entity type's definition.
+ *
+ * @var array
+ */
+ protected $baseEntityInfo = [];
+
+ /**
+ * The bundle info for the base entity type.
+ *
+ * @var array
+ */
+ protected $baseEntityBundles = [];
+
+ /**
+ * The entity manager.
+ *
+ * @var \Drupal\Core\Entity\EntityManagerInterface
+ */
+ protected $entityManager;
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
+ $entity_manager = $container->get('entity.manager');
+ return new static(
+ $entity_type,
+ $entity_manager->getStorage($entity_type->id()),
+ $entity_manager
+ );
+ }
+
+ /**
+ * Constructs a new ConfigTranslationFieldListBuilder object.
+ *
+ * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
+ * The entity type definition.
+ * @param \Drupal\Core\Entity\EntityStorageInterface $storage
+ * The entity storage class.
+ * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
+ * The entity manager.
+ */
+ public function __construct(EntityTypeInterface $entity_type, EntityStorageInterface $storage, EntityManagerInterface $entity_manager) {
+ parent::__construct($entity_type, $storage);
+ $this->entityManager = $entity_manager;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setMapperDefinition($mapper_definition) {
+ $this->baseEntityType = $mapper_definition['base_entity_type'];
+ $this->baseEntityInfo = $this->entityManager->getDefinition($this->baseEntityType);
+ $this->baseEntityBundles = $this->entityManager->getBundleInfo($this->baseEntityType);
+ return $this;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function load() {
+ // It is not possible to use the standard load method, because this needs
+ // all field entities only for the given baseEntityType.
+ $ids = \Drupal::entityQuery('field_config')
+ ->condition('id', $this->baseEntityType . '.', 'STARTS_WITH')
+ ->execute();
+ return $this->storage->loadMultiple($ids);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getFilterLabels() {
+ $info = parent::getFilterLabels();
+ $bundle = $this->baseEntityInfo->getBundleLabel() ?: $this->t('Bundle');
+ $bundle = Unicode::strtolower($bundle);
+
+ $info['placeholder'] = $this->t('Enter field or @bundle', ['@bundle' => $bundle]);
+ $info['description'] = $this->t('Enter a part of the field or @bundle to filter by.', ['@bundle' => $bundle]);
+
+ return $info;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function buildRow(EntityInterface $entity) {
+ $row['label'] = [
+ 'data' => $entity->label(),
+ 'class' => 'table-filter-text-source',
+ ];
+
+ if ($this->displayBundle()) {
+ $bundle = $entity->get('bundle');
+ $row['bundle'] = [
+ 'data' => $this->baseEntityBundles[$bundle]['label'],
+ 'class' => 'table-filter-text-source',
+ ];
+ }
+
+ return $row + parent::buildRow($entity);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function buildHeader() {
+ $header['label'] = $this->t('Field');
+ if ($this->displayBundle()) {
+ $header['bundle'] = $this->baseEntityInfo->getBundleLabel() ?: $this->t('Bundle');
+ }
+ return $header + parent::buildHeader();
+ }
+
+ /**
+ * Controls the visibility of the bundle column on field list pages.
+ *
+ * @return bool
+ * Whenever the bundle is displayed or not.
+ */
+ public function displayBundle() {
+ // The bundle key is explicitly defined in the entity definition.
+ if ($this->baseEntityInfo->getKey('bundle')) {
+ return TRUE;
+ }
+
+ // There is more than one bundle defined.
+ if (count($this->baseEntityBundles) > 1) {
+ return TRUE;
+ }
+
+ // The defined bundle ones not match the entity type name.
+ if (!empty($this->baseEntityBundles) && !isset($this->baseEntityBundles[$this->baseEntityType])) {
+ return TRUE;
+ }
+
+ return FALSE;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function sortRows($a, $b) {
+ return $this->sortRowsMultiple($a, $b, ['bundle', 'label']);
+ }
+
+}