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/*
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Authors:
 *      JP Rosevear <jpr@novell.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <string.h>
#include <glib.h>
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <gconf/gconf-client.h>
#include <e-util/e-config.h>
#include <mail/em-config.h>

#define GCONF_KEY "/apps/evolution/mail/display/thread_subject"

GtkWidget *org_gnome_subject_thread_factory (EPlugin *ep, EConfigHookItemFactoryData *hook_data);
gint e_plugin_lib_enable (EPlugin *ep, gint enable);

gint
e_plugin_lib_enable (EPlugin *ep, gint enable)
{
    return 0;
}

static void
toggled_cb (GtkWidget *widget, EConfig *config)
{
    EMConfigTargetPrefs *target = (EMConfigTargetPrefs *) config->target;

    /* Save the new setting to gconf */
    gconf_client_set_bool (target->gconf, GCONF_KEY, gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)), NULL);
}

GtkWidget *
org_gnome_subject_thread_factory (EPlugin *ep, EConfigHookItemFactoryData *hook_data)
{
    GtkWidget *check;
    EMConfigTargetPrefs *target = (EMConfigTargetPrefs *) hook_data->config->target;

    /* Create the checkbox we will display, complete with mnemonic that is unique in the dialog */
    check = gtk_check_button_new_with_mnemonic (_("F_all back to threading messages by subject"));

    /* Set the toggle button to the current gconf setting */
    gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (check), gconf_client_get_bool (target->gconf, GCONF_KEY, NULL));

    /* Listen for the item being toggled on and off */
    g_signal_connect (GTK_TOGGLE_BUTTON (check), "toggled", G_CALLBACK (toggled_cb), hook_data->config);

    /* Pack the checkbox in the parent widget and show it */
    gtk_box_pack_start (GTK_BOX (hook_data->parent), check, FALSE, FALSE, 0);
    gtk_widget_show (check);

    return check;
}