Function isTabbableRadio

packages/react-aria/src/focus/FocusScope.tsx:327–333

(element: HTMLInputElement)

}

function isTabbableRadio(element: HTMLInputElement): boolean {
  if (element.checked) {
    return true;
  }
  const radios = getRadiosInGroup(element);
  return radios.length > 0 && !radios.some(radio => radio.checked);
}

function useFocusContainment(scopeRef: RefObject<Element[] | null>, contain?: boolean) {
  let focusedNode = useRef<FocusableElement>(undefined);