#!/usr/bin/python
 # -*- coding: UTF-8 -*-

 # 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: Quinn Storm (quinn@beryl-project.org)
 #          Patrick Niklaus (marex@opencompositing.org)
 # Copyright (C) 2007 Quinn Storm

 DBUS_CCSM_SERVICE = 'org.compiz_fusion.ccsm'
 DBUS_CCSM_PATH = '/org/compiz_fusion/ccsm'
 DBUS_CCSM_INTERFACE = 'org.compiz_fusion.ccsm'

 # from the D-Bus specification
 DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER = 1

 from optparse import OptionParser
 import pygtk
 pygtk.require('2.0')
 import gtk
 import sys

def try_register_dbus ():
    '''Return instance of dbus control object on success, None on failure'''
    try:
        import dbus, dbus.service
        from dbus.mainloop.glib import DBusGMainLoop

    except ImportError:
        return

	# rely on a reasonably new dbus-python
	if dbus.version < (0, 80, 0):
		return

    class CCSMObject(dbus.service.Object):
        main_window = None

        @dbus.service.method(DBUS_CCSM_INTERFACE, in_signature='s', out_signature='')
        def present (self, startup_id):
            if startup_id:
                self.main_window.set_startup_id(startup_id)
            else:
               self.main_window.present()

    DBusGMainLoop(set_as_default=True)

    try:
        bus = dbus.SessionBus()
    except dbus.DBusException:
        return

    try:
        obj = bus.get_object(DBUS_CCSM_SERVICE, DBUS_CCSM_PATH)
        obj = dbus.Interface(obj, DBUS_CCSM_INTERFACE)
    except dbus.DBusException:
        # no ccsm instance running
        if (bus.request_name(DBUS_CCSM_SERVICE)
            == DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER):
            return CCSMObject(bus, DBUS_CCSM_PATH)
        else:
            return

    else:
        try:
            display = gtk.gdk.display_get_default()
            startup_id = gtk.gdk.x11_display_get_startup_notification_id(display)
            obj.present(startup_id or "")
            print 'Another CCSM instance already running'
            sys.exit(0)
        except dbus.DBusException:
            # error on present call so pretend it doesn't exist and start up normally
            return

 dbusObj = try_register_dbus()

 try:
    import sexy
    has_sexy = True
except ImportError:
    # openSUSE does not come with sexy-python, so don't warn
    # print "Info: No sexy-python package found, don't worry it's optional."
    has_sexy = False

if gtk.pygtk_version < (2,12,0):
    raise SystemExit("PyGtk 2.12.0 or later required")

 import compizconfig
 import ccm
 from ccm.Utils import GlobalUpdater
 from ccm.Constants import Version

 plugin   = None
 category = None
 parser   = OptionParser()
 parser.add_option("-p", "--plugin", dest = "plugin",
                  help = "Directly jump to the page of PLUGIN",
                  metavar = "PLUGIN")
parser.add_option("-c", "--category", dest = "category",
                  help = "Directly jump to CATEGORY",
                  metavar = "CATEGORY")
parser.add_option("-v", "--version", dest = "version",
                  action = "store_true",
                  help = "Version")
 (options, args) = parser.parse_args()
 if options.version:
    print "CCSM %s" % Version
    sys.exit(0)
 if options.plugin:
    plugin = options.plugin
 if options.category:
    category = options.category

 screens=ccm.getScreens()
 context=compizconfig.Context(screens)
 GlobalUpdater.SetContext (context)
 mainWin = ccm.MainWin(context, plugin, category)
 if dbusObj is not None:
    dbusObj.main_window = mainWin

 idle = ccm.IdleSettingsParser(context, mainWin)
 mainWin.show_all()

 gtk.main()