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

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

Form builder for the advanced admin settings page. Hierarchy class \Drupal\Core\Form\

public ConfigHandlerExtra::submitForm(array

protected BasicSettingsForm::getEditableConfigNames()

public BasicSettingsForm::__construct(ConfigFactoryInterface

public AddHandler::getFormId() Returns

public ReorderDisplays::getFormKey()

public ViewsFormBase::getFormState(ViewEntityInterface

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