This did not happen with the old tooltips code, because tooltips didn't show up at all on menu items with sub menus.  For the record: I was told that menu items with sub menus no longer show tooltips with gnome-panel from trunk.

So this is something new we need to handle, there are a few possibilities how:
- Popdown the tooltip on visibility notify (though this leaves little chance for a tooltip on a menu item with sub menu to pop up).

- Or;

 on_visibility_notify():
  if (has_ancestor (tooltip_widget, TYPE_MENU_ITEM))
    raise (tip_window);
  else
    unmap (tip_window);

which is kind of hackish.

- Or; always raise on visibility-notify.  This could be nasty if another application pops up a window above the tooltip; the tooltip would raise beyond that again.


We will be tracking more ideas here and come to a solution.

closing old bugs