/* -*- mode: c; style: linux -*- */

/* gnome-settings-keyboard-xkb.c
 *
 * Copyright © 2001 Udaltsoft
 *
 * Written by Sergey V. Oudaltsov <svu@users.sourceforge.net>
 *
 * 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, 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 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., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <gdk/gdk.h>
#include <gdk/gdkx.h>
#include <gconf/gconf-client.h>

#include <string.h>

#include <libgnome/gnome-i18n.h>

#include <libxklavier/xklavier.h>
#include <libgswitchit/gswitchit_xkb_config.h>

#include "gnome-settings-keyboard-xkb.h"
#include "gnome-settings-daemon.h"

static GSwitchItXkbConfig gswic;
static gboolean initedOk;

static void
activation_error (void)
{
	char *vendor = ServerVendor (GDK_DISPLAY ());
	int release = VendorRelease (GDK_DISPLAY ());
	gboolean badXFree430Release = (!strcmp (vendor,
						"The XFree86 Project, Inc"))
	    && (release == 40300000);

	GtkWidget *msg = gtk_message_dialog_new (NULL,
						 GTK_DIALOG_MODAL |
						 GTK_DIALOG_DESTROY_WITH_PARENT,
						 GTK_MESSAGE_ERROR,
						 GTK_BUTTONS_OK,
						 _
						 ("Error activating XKB configuration.\n"
						  "Probably internal X server problem.\n\nX server version data:\n%s\n%d%s"),
						 vendor,
						 release,
						 badXFree430Release ?
						 _
						 ("You are using XFree 4.3.0.\n"
						  "There are known problems with complex XKB configurations.\n"
						  "Try using simpler configuration or taking more fresh version of XFree software.")
						 : "");
	gtk_dialog_run (GTK_DIALOG (msg));
	gtk_widget_destroy (msg);
}

static void
apply_settings (void)
{
	GConfClient *confClient;

	memset (&gswic, 0, sizeof (gswic));

	confClient = gconf_client_get_default ();
	GSwitchItXkbConfigInit (&gswic, confClient);
	g_object_unref (confClient);
	GSwitchItXkbConfigLoad (&gswic);

	if (!gswic.overrideSettings)
		GSwitchItXkbConfigLoadInitial (&gswic);

	if (!GSwitchItXkbConfigActivate (&gswic)) {
		g_warning ("Could not activate the XKB configuration");
		activation_error ();
	}

	GSwitchItXkbConfigTerm (&gswic);
}

void
gnome_settings_keyboard_xkb_init (GConfClient * client)
{
	if (!XklInit (GDK_DISPLAY ())) {
		initedOk = TRUE;
		gnome_settings_daemon_register_callback
		    ("/desktop/gnome/peripherals/keyboard/xkb",
		     (KeyCallbackFunc) apply_settings);
	}
}

void
gnome_settings_keyboard_xkb_load (GConfClient * client)
{
	if (initedOk)
		apply_settings ();
}