sugar-toolkit-gtk3/shell/sugar-activity

#!/usr/bin/env python

# Copyright (C) 2006, Red Hat, Inc.
#
# 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 St, Fifth Floor, Boston, MA  02110-1301  USA

import sys
import os

import gtk
import dbus
import dbus.glib

from sugar.activity import bundleregistry
from sugar.activity import activityfactory
from sugar.activity import activityfactoryservice
from sugar import env

def _setup_bus_address():
    '''Use the bus address of the running Sugar'''
    bus_file = os.path.join(env.get_profile_path(), "session_bus_address")
    f = open(bus_file, "r")
    bus_name = f.read()
    f.close()
    os.environ['DBUS_SESSION_BUS_ADDRESS'] = bus_name

def _success_cb(handler, exit):
    if exit:
        gtk.main_quit()

def _error_cb(handler, err):
    print err
    gtk.main_quit()

_setup_bus_address()

service_name = sys.argv[1]
registry = bundleregistry.get_registry()
bundle = registry.get_bundle(service_name)

bus = dbus.SessionBus()
bus_object = bus.get_object('org.freedesktop.DBus', '/org/freedesktop/DBus')
try:
    name = bus_object.GetNameOwner(
        service_name, dbus_interface='org.freedesktop.DBus')
except  dbus.DBusException:
    name = None

if name:
    print '%s is already running, creating a new instance.' % service_name
else:
    activityfactoryservice.run(bundle.get_path())

handler = activityfactory.create(service_name)
handler.connect('success', _success_cb, name != None)
handler.connect('error', _error_cb)

gtk.main()