public WidgetBase::extractFormValues(FieldItemListInterface $items, array $form
public WidgetBase::flagErrors(FieldItemListInterface $items, ConstraintViolationListInterface
public static WidgetBase::getWidgetState(array $parents, $field_name, FormStateInterface
protected WidgetBase::formSingleElement(FieldItemListInterface $items, $delta
public static WidgetBase::isApplicable(FieldDefinitionInterface $field_definition)
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