Expanded class hierarchy of ViewingSubmissionEvent in RULES WEBFORM 8
- class \Drupal\rules_webform\Event\RulesWebformEventBase extends \Symfony\component\EventDispatcher\Event
- class \Drupal\rules_webform\Event\DeletingSubmissionEvent
- class \Drupal\rules_webform\Event\UpdatingSubmissionEvent
- class \Drupal\rules_webform\Event\ViewingSubmissionEvent
- class \Drupal\rules_webform\Event\WebformSubmitEvent