Function keepVisible

packages/react-aria/src/overlays/ariaHideOutside.ts:299–307

(element: Element)

}

export function keepVisible(element: Element): (() => void) | undefined {
  let observer = observerStack[observerStack.length - 1];
  if (observer && !observer.visibleNodes.has(element)) {
    observer.visibleNodes.add(element);
    return () => {
      observer.visibleNodes.delete(element);
    };
  }
}