Banshee.Gui.TrackActions.OnAddToPlaylistMenu C# (CSharp) Method

        private void OnAddToPlaylistMenu (object o, EventArgs args)
        {
            Source active_source = ServiceManager.SourceManager.ActiveSource;

            List<Source> children;
            lock (ActivePrimarySource.Children) {
                children = new List<Source> (ActivePrimarySource.Children);
            }

            // TODO find just the menu that was activated instead of modifying all proxies
            foreach (Widget proxy_widget in (o as Gtk.Action).Proxies) {
                MenuItem menu = proxy_widget as MenuItem;
                if (menu == null)
                    continue;

                Menu submenu = new Menu ();
                menu.Submenu = submenu;

                submenu.Append (this ["AddToNewPlaylistAction"].CreateMenuItem ());
                bool separator_added = false;

                foreach (Source child in children) {
                    PlaylistSource playlist = child as PlaylistSource;
                    if (playlist != null) {
                        if (!separator_added) {
                            submenu.Append (new SeparatorMenuItem ());
                            separator_added = true;
                        }

                        PlaylistMenuItem item = new PlaylistMenuItem (playlist);
                        item.Image = new Gtk.Image ("playlist-source", IconSize.Menu);
                        item.Activated += OnAddToExistingPlaylist;
                        item.Sensitive = playlist != active_source;
                        submenu.Append (item);
                    }
                }

                submenu.ShowAll ();
            }
        }