import { useTabster } from './useTabster'; import * as React from 'react'; /** * Subscribes to the tabster focused element. Calls the callback when the focused element changes. * @param callback - Callback to subscribe to the focused element. */ export function useFocusedElementChange(callback) { const tabster = useTabster(); React.useEffect(()=>{ if (tabster) { tabster.focusedElement.subscribe(callback); return ()=>tabster.focusedElement.unsubscribe(callback); } }, [ tabster, callback ]); }