Function useSelectionChange

packages/@react-spectrum/ai/src/TokenField.tsx:666–683

(ref: React.RefObject<Element | null>, handler: () => void)

}

function useSelectionChange(ref: React.RefObject<Element | null>, handler: () => void) {
  useEvent(useRef(document), 'selectionchange', () => {
    if (isProgrammaticSelectionChange) {
      isProgrammaticSelectionChange = false;
      return;
    }

    let selection = window.getSelection();
    if (!selection || selection.rangeCount === 0 || !ref.current) {
      return;
    }

    let range = selection.getRangeAt(0);
    if (range.intersectsNode(ref.current)) {
      handler();
    }
  });
}

function isCollapsed(pos1: Position, pos2: Position) {
  return pos1.index === pos2.index && pos1.offset === pos2.offset;