button.connect_button_press_event(|w,_| {
    if let Some(screen) = w.get_screen() {
        let display = screen.get_display();
        let cursor = gdk::Cursor::new_for_display(&display, gdk::CursorType::Watch);
        if let Some(window) = w.get_root_window() {
            window.set_cursor(&cursor);
        }

    }

    gtk::Inhibit(true)
});