onClose method

Implementation

onClose()
{
  if (widget.model.closeable == false) return;
  OverlayManagerView? overlay = context.findAncestorWidgetOfExactType<OverlayManagerView>();
  if (overlay != null)
  {
    overlay.model.unpark(widget);
    overlay.model.overlays.remove(widget);
    overlay.model.refresh();
  }
}