--- /dev/null
+<?php
+
+namespace Drupal\Core\Field;
+
+use Drupal\Component\Plugin\Factory\DefaultFactory;
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Entity\FieldableEntityInterface;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Plugin\CategorizingPluginManagerTrait;
+use Drupal\Core\Plugin\DefaultPluginManager;
+use Drupal\Core\TypedData\TypedDataManagerInterface;
+
+/**
+ * Plugin manager for 'field type' plugins.
+ *
+ * @ingroup field_types
+ */
+class FieldTypePluginManager extends DefaultPluginManager implements FieldTypePluginManagerInterface {
+
+ use CategorizingPluginManagerTrait;
+
+ /**
+ * The typed data manager.
+ *
+ * @var \Drupal\Core\TypedData\TypedDataManagerInterface
+ */
+ protected $typedDataManager;
+
+ /**
+ * Constructs the FieldTypePluginManager object
+ *
+ * @param \Traversable $namespaces
+ * An object that implements \Traversable which contains the root paths
+ * keyed by the corresponding namespace to look for plugin implementations.
+ * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
+ * Cache backend instance to use.
+ * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
+ * The module handler.
+ * @param \Drupal\Core\TypedData\TypedDataManagerInterface $typed_data_manager
+ * The typed data manager.
+ */
+ public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler, TypedDataManagerInterface $typed_data_manager) {
+ parent::__construct('Plugin/Field/FieldType', $namespaces, $module_handler, 'Drupal\Core\Field\FieldItemInterface', 'Drupal\Core\Field\Annotation\FieldType');
+ $this->alterInfo('field_info');
+ $this->setCacheBackend($cache_backend, 'field_types_plugins');
+ $this->typedDataManager = $typed_data_manager;
+ }
+
+ /**
+ * {@inheritdoc}
+ *
+ * Creates a field item, which is not part of an entity or field item list.
+ *
+ * @param string $field_type
+ * The field type, for which a field item should be created.
+ * @param array $configuration
+ * The plugin configuration array, i.e. an array with the following keys:
+ * - field_definition: The field definition object, i.e. an instance of
+ * Drupal\Core\Field\FieldDefinitionInterface.
+ *
+ * @return \Drupal\Core\Field\FieldItemInterface
+ * The instantiated object.
+ */
+ public function createInstance($field_type, array $configuration = []) {
+ $configuration['data_definition'] = $configuration['field_definition']->getItemDefinition();
+ return $this->typedDataManager->createInstance("field_item:$field_type", $configuration);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function createFieldItemList(FieldableEntityInterface $entity, $field_name, $values = NULL) {
+ // Leverage prototyping of the Typed Data API for fast instantiation.
+ return $this->typedDataManager->getPropertyInstance($entity->getTypedData(), $field_name, $values);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function createFieldItem(FieldItemListInterface $items, $index, $values = NULL) {
+ // Leverage prototyping of the Typed Data API for fast instantiation.
+ return $this->typedDataManager->getPropertyInstance($items, $index, $values);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function processDefinition(&$definition, $plugin_id) {
+ parent::processDefinition($definition, $plugin_id);
+ if (!isset($definition['list_class'])) {
+ $definition['list_class'] = '\Drupal\Core\Field\FieldItemList';
+ }
+
+ // Ensure that every field type has a category.
+ if (empty($definition['category'])) {
+ $definition['category'] = $this->t('General');
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getDefaultStorageSettings($type) {
+ $plugin_definition = $this->getDefinition($type, FALSE);
+ if (!empty($plugin_definition['class'])) {
+ $plugin_class = DefaultFactory::getPluginClass($type, $plugin_definition);
+ return $plugin_class::defaultStorageSettings();
+ }
+ return [];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getDefaultFieldSettings($type) {
+ $plugin_definition = $this->getDefinition($type, FALSE);
+ if (!empty($plugin_definition['class'])) {
+ $plugin_class = DefaultFactory::getPluginClass($type, $plugin_definition);
+ return $plugin_class::defaultFieldSettings();
+ }
+ return [];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getUiDefinitions() {
+ $definitions = $this->getDefinitions();
+
+ // Filter out definitions that can not be configured in Field UI.
+ $definitions = array_filter($definitions, function ($definition) {
+ return empty($definition['no_ui']);
+ });
+
+ // Add preconfigured definitions.
+ foreach ($definitions as $id => $definition) {
+ if (is_subclass_of($definition['class'], '\Drupal\Core\Field\PreconfiguredFieldUiOptionsInterface')) {
+ foreach ($definition['class']::getPreconfiguredOptions() as $key => $option) {
+ $definitions['field_ui:' . $id . ':' . $key] = [
+ 'label' => $option['label'],
+ ] + $definition;
+
+ if (isset($option['category'])) {
+ $definitions['field_ui:' . $id . ':' . $key]['category'] = $option['category'];
+ }
+ }
+ }
+ }
+
+ return $definitions;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getPluginClass($type) {
+ $plugin_definition = $this->getDefinition($type, FALSE);
+ return $plugin_definition['class'];
+ }
+
+}