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alarm-gconf.c

/*
 * alarm-gconf.c -- GConf routines
 * 
 * Copyright (C) 2007-2008 Johannes H. Jensen <joh@pseudoberries.com>
 * 
 * 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 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.
 * 
 * Authors:
 *          Johannes H. Jensen <joh@pseudoberries.com>
 */

#include <time.h>

#include "alarm-applet.h"
#include "alarm-gconf.h"
#include "alarm-settings.h"
#include "alarm.h"

/**
 * Triggered on global changes to our gconf preference dir.
 * We do this because we're interested in the events where
 * an alarm directory is either added or deleted externally.
 * 
 * When this happens we update our list of alarms.
 */
static void
alarm_applet_gconf_global_change (GConfClient  *client,
                                                  guint         cnxn_id,
                                                  GConfEntry   *entry,
                                                  AlarmApplet  *applet)
{
      Alarm *a;
      GString *str;
      GList *l;
      gchar *dir;
      gint id, i, len;
      gboolean found = FALSE;
      
      g_debug ("GLOBAL_change: %s", entry->key);
      
      /*
       * We're only interested in the first part of the key matching
       * {applet_gconf_pref_dir}/{something}
       * 
       * Here we extract {something}
       */
      dir = ALARM_GCONF_DIR;
      len = strlen (entry->key);
      str = g_string_new ("");
      
      for (i = strlen(dir) + 1; i < len; i++) {
            if (entry->key[i] == '/')
                  break;
            
            str = g_string_append_c (str, entry->key[i]);
      }
      
      //g_debug ("\tEXTRACTED: %s", str->str);
      
      // Check if the key is valid
      id = alarm_gconf_dir_get_id (str->str);
      
      if (id >= 0) {
            // Valid, probably an alarm which has been removed
            g_debug ("GLOBAL change ON alarm #%d", id);
        
        // Check if the alarm exists in our alarms list
            for (l = applet->alarms; l != NULL; l = l->next) {
                  a = ALARM (l->data);
                  if (a->id == id) {
                        // FOUND
                        found = TRUE;
                        break;
                  }
            }
            
            if (found && entry->value == NULL) {
                  // DELETED ALARM
                  g_debug ("\tDELETE alarm #%d %p", id, a);
                  
                  /* If there's a settings dialog open for this
                   * alarm, close it.
                   */
            if (applet->settings_dialog->alarm == a) {
                        alarm_settings_dialog_close (applet->settings_dialog);
                  }
                  
                  /*
                   * Remove from list
                   */
                  alarm_applet_alarms_remove (applet, a);
                  
            } else if (!found && entry->value != NULL) {
                  // ADDED ALARM
                  /*
                   * Add to list
                   */
                  a = alarm_new (ALARM_GCONF_DIR, id);
                  
                  g_debug ("\tADD alarm #%d %p", id, a);
                  
                  alarm_applet_alarms_add (applet, a);
            
            } else if (found) {
            //alarm_list_window_alarm_update (applet->list_window, a);
        }
      }
      
      g_string_free (str, TRUE);
}


/*
 * }} GCONF CALLBACKS
 */

/*
 * Init
 */
void
alarm_applet_gconf_init (AlarmApplet *applet)
{
      GConfClient *client = gconf_client_get_default ();

      gconf_client_add_dir (client, ALARM_GCONF_DIR, GCONF_CLIENT_PRELOAD_RECURSIVE, NULL);
    
      /*
       * Listen for changes to the alarms.
       * We want to know when an alarm is added and removed.
       */
      gconf_client_notify_add (
                  client, ALARM_GCONF_DIR,
                  (GConfClientNotifyFunc) alarm_applet_gconf_global_change,
                  applet, NULL, NULL);
      
}

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