public class ExtendedMenuItem : Gtk.MenuItem
{

    public Gtk.EventBox container;

    const string style = "
    * {
        padding: 0px;
        margin: 0px;
        -GtkWidget-focus-padding: 0;
        -GtkMenuItem-horizontal-padding: 0;
        -GtkMenu-vertical-padding: 0px;
        -GtkMenuItem-arrow-scaling: 0.0;
        border-width: 0px;
        background-image: none;
        -unico-border-width: 0px;
        -unico-outer-stroke-width: 0px;
        -unico-inner-stroke-width: 0px;
        -unico-glow-radius: 0;
    }";

    public ExMenuItem ()
    {
        container = new Gtk.EventBox ();
        container.margin_right = 12;

        var css = new Gtk.CssProvider ();
        try {
            css.load_from_data (style, -1);
        } catch (Error e) { warning (e.message); }
        get_style_context ().add_provider (css, 20000);

        add (container);

        show_all ();

        container.realize.connect (() => {
            var event = new Gdk.Event (Gdk.EventType.FOCUS_CHANGE);
            container.grab_focus ();

            event.focus_change.type = Gdk.EventType.FOCUS_CHANGE;
            event.focus_change.window = (Gdk.Window)container.get_window ().ref ();
            event.focus_change.in = 1;

            //event.free ();
        });
    }

    public override bool button_press_event (Gdk.EventButton event)
    {

        if (container.get_window () != null)
            container.get_window ().raise ();

        if (!container.has_focus)
            container.grab_focus ();

        var new_event = Gdk.EventButton ();
        new_event.type = event.type;
        new_event.window = event.window;
        new_event.send_event = event.send_event;
        new_event.time = event.time;
        new_event.x = event.x;
        new_event.y = event.y;
        new_event.state = event.state;
        new_event.button = event.button;
        new_event.device = event.device;
        new_event.x_root = event.x_root;
        new_event.y_root = event.y_root;

        var children = container.get_window ().get_children ();

        foreach (var child in children) {
            if (child == null)
                continue;

            new_event.window = child;

            int winx, winy;
            child.get_origin (out winx, out winy);

            int newx = (int)event.x_root - winx;
            int newy = (int)event.y_root - winy;

            if (newx >= 0 && newy >= 0 && newx < child.get_width () && newy < child.get_height ()) {
                new_event.x = newx;
                new_event.y = newy;

                container.button_press_event (new_event);
            }
        }

        return true;
    }

    public override bool button_release_event (Gdk.EventButton e)
    {
        container.button_release_event (e);
        return true;
    }
}

public static void main (string [] args)
{
    Gtk.init (ref args);

    var w = new Gtk.Window ();
    var e = new Gtk.EventBox ();
    var m = new Gtk.Menu ();
    var i = new ExtendedMenuItem ();
    var b = new Gtk.Box (Gtk.Orientation.VERTICAL, 12);
    var n = new Granite.Widgets.StaticNotebook ();


    b.pack_start (n);

    n.set_size_request (300, 200);
    n.append_page (new Gtk.Image.from_icon_name ("document-export", Gtk.IconSize.DIALOG), new Gtk.Label ("A"));
    n.append_page (new Gtk.Image.from_icon_name ("document-save", Gtk.IconSize.DIALOG), new Gtk.Label ("A"));
    n.append_page (new Gtk.Image.from_icon_name ("document-import", Gtk.IconSize.DIALOG), new Gtk.Label ("A"));

    i.container.add (b);

    m.add (i);

    w.add (e);


    e.button_press_event.connect ((e) => {
        m.popup (null, null, null, e.button, e.time);
        m.show_all ();
        return true;
    });

    w.show_all ();

    Gtk.main ();
}