~ubuntu-branches/ubuntu/utopic/xfdesktop4/utopic

/*

 *  xfdesktop - xfce4's desktop manager

 *

 *  Copyright (c) 2004-2008 Brian J. Tarricone <bjt23@cornell.edu>

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 of the License, or

 *  (at your option) any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU Library General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software Foundation,

 *  Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA

 *

 *  Random portions taken from or inspired by the original xfdesktop for xfce4:

 *     Copyright (C) 2002-2003 Jasper Huijsmans (huysmans@users.sourceforge.net)

 *     Copyright (C) 2003 Benedikt Meurer <benedikt.meurer@unix-ag.uni-siegen.de>

 */

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

#ifdef HAVE_STRING_H

#include <string.h>

#endif

#include <glib.h>

#include <gtk/gtk.h>

#include <libxfce4util/libxfce4util.h>

#include "menu.h"

#ifdef USE_DESKTOP_MENU

#include "xfce-desktop-menu.h"

#endif

#ifdef USE_DESKTOP_MENU

static XfceDesktopMenu *desktop_menu = NULL;

static gboolean show_desktop_menu_icons = TRUE;

#endif

#ifdef USE_DESKTOP_MENU

static void

_stop_menu_module(void) {

    if(desktop_menu) {

        xfce_desktop_menu_destroy(desktop_menu);

        desktop_menu = NULL;

    }

}

static gboolean

_start_menu_module(void)

{

    desktop_menu = xfce_desktop_menu_new(TRUE);

    if(desktop_menu) {

        xfce_desktop_menu_set_show_icons(desktop_menu, show_desktop_menu_icons);

        return TRUE;

    } else {

        g_warning("%s: Unable to initialise menu module. Right-click menu will be unavailable.\n", PACKAGE);

        return FALSE;

    }

}

#endif

#ifdef USE_DESKTOP_MENU

static void

menu_populate(XfceDesktop *desktop,

              GtkMenuShell *menu,

              gpointer user_data)

{

    GtkWidget *desktop_menu_widget;

    GList *menu_children;

    TRACE("ENTERING");

    if(!desktop_menu)

        return;

    /* check to see if the menu is empty.  if not, add the desktop menu

     * to a submenu */

    menu_children = gtk_container_get_children(GTK_CONTAINER(menu));

    if(menu_children) {

        g_list_free(menu_children);

        desktop_menu_widget = xfce_desktop_menu_get_widget(desktop_menu);

        if(desktop_menu_widget) {

            GtkWidget *mi, *img = NULL;

            GtkIconTheme *itheme = gtk_icon_theme_get_default();

            mi = gtk_separator_menu_item_new();

            gtk_widget_show(mi);

            gtk_menu_shell_append(GTK_MENU_SHELL(menu), mi);

            if(gtk_icon_theme_has_icon(itheme, "applications-other")) {

                img = gtk_image_new_from_icon_name("applications-other",

                                                   GTK_ICON_SIZE_MENU);

                gtk_widget_show(img);

            }

            mi = gtk_image_menu_item_new_with_mnemonic(_("_Applications"));

            gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(mi), img);

            gtk_widget_show(mi);

            gtk_menu_shell_append(GTK_MENU_SHELL(menu), mi);

            gtk_menu_item_set_submenu(GTK_MENU_ITEM(mi), desktop_menu_widget);

        }

    } else {

        /* just get the menu as a list of toplevel GtkMenuItems instead of

         * a toplevel menu */

        xfce_desktop_menu_populate_menu(desktop_menu, GTK_WIDGET(menu));

    }

}

#endif /* USE_DESKTOP_MENU */

#ifdef USE_DESKTOP_MENU

static void

menu_settings_changed(XfconfChannel *channel,

                      const gchar *property,

                      const GValue *value,

                      gpointer user_data)

{

    if(!strcmp(property, "/desktop-menu/show")) {

        if(!G_VALUE_TYPE(value) || g_value_get_boolean(value)) {

            if(!desktop_menu) {

                _start_menu_module();

                if(desktop_menu && !show_desktop_menu_icons)

                    xfce_desktop_menu_set_show_icons(desktop_menu, FALSE);

            }

        } else {

            if(desktop_menu)

                _stop_menu_module();

        }

    } else if(!strcmp(property, "/desktop-menu/show-icons")) {

        show_desktop_menu_icons = G_VALUE_TYPE(value)

                                  ? g_value_get_boolean(value)

                                  : TRUE;

        if(desktop_menu) {

            xfce_desktop_menu_set_show_icons(desktop_menu,

                                             show_desktop_menu_icons);

        }

    }

}

#endif

void

menu_init(XfconfChannel *channel)

{    

#ifdef USE_DESKTOP_MENU

    if(!channel

       || xfconf_channel_get_bool(channel, "/desktop-menu/show", TRUE))

    {

        if(channel) {

            show_desktop_menu_icons = xfconf_channel_get_bool(channel,

                                                              "/desktop-menu/show-icons",

                                                              TRUE);

        }

        _start_menu_module();

    } else

        _stop_menu_module();

    if(channel) {

        g_signal_connect(G_OBJECT(channel), "property-changed",

                         G_CALLBACK(menu_settings_changed), NULL);

    }

#endif

}

void

menu_attach(XfceDesktop *desktop)

{

#ifdef USE_DESKTOP_MENU

    DBG("attached default menu");

    g_signal_connect_after(G_OBJECT(desktop), "populate-root-menu",

                           G_CALLBACK(menu_populate), NULL);

#endif /* USE_DESKTOP_MENU */

}

void

menu_reload(void)

{

#ifdef USE_DESKTOP_MENU

    if(desktop_menu)

        xfce_desktop_menu_force_regen(desktop_menu);

#endif

}

void

menu_cleanup(void)

{

#ifdef USE_DESKTOP_MENU

    _stop_menu_module();

#endif

}