Expanded class hierarchy of WidgetInterface

interface \Drupal\Component\Plugin\PluginInspectionInterface
- interface \Drupal\ckeditor\CKEditorPluginInterface
- interface \Drupal\Component\Plugin\ContextAwarePluginInterface
- interface \Drupal\editor\Plugin\EditorPluginInterface
- interface \Drupal\edit\EditPluginInterface
- interface \Drupal\field\Plugin\PluginSettingsInterface
  - interface \Drupal\field\Plugin\Type\Formatter\FormatterInterface
  - interface \Drupal\field\Plugin\Type\Widget\WidgetBaseInterface
    interface \Drupal\field\Plugin\Type\Widget\WidgetInterface
- interface \Drupal\layout\Plugin\LayoutInterface
- interface \Drupal\rest\Plugin\ResourceInterface
- interface \Drupal\views\Plugin\views\PluginInterface