wrap method

Implementation

Widget wrap(Widget child) {
  return Listener(
    behavior: options.behavior,
    onPointerDown: handlePointerDown,
    onPointerUp: handlePointerUp,
    onPointerMove: (PointerMoveEvent event) {
      _lastPointerDownPosition = event.position;
    },
    onPointerCancel: (detail) {
      handlePointerCancel();
    },
    child: child,
  );
}