public ConfigHandlerExtra::buildForm(array $form

public ConfigHandler::remove(&$form, FormStateInterface

Provides a form for adding an item in the Views UI. Hierarchy class \Drupal\Core\Form\

protected ViewsFormBase::setType($type)

public ViewsFormBase::validateForm(array &$form, FormStateInterface

public ConfigHandlerExtra::validateForm(array

public ConfigHandler::__construct($type = NULL, $id =

Provides a rearrange form for Views handlers. Hierarchy class \Drupal\Core\Form\

Hierarchy interface \Drupal\Core\Form\Form

public ReorderDisplays::getFormKey()