#!/usr/bin/python

import sys
import dbus
import dbus.service
import gobject

from dbus.mainloop.glib import DBusGMainLoop

DBusGMainLoop(set_as_default=True)

class IdleStateM (object):
        def __init__(self, bus, loop):
                self._bus = bus
                self._loop = loop
                self._func = self.setup

        def idle_handler(self):
                self._func = self._func()
                if self._func == None:
                        self._func = self.teardown
                return True

        def setup(self):
                self.obj = self._bus.get_object("org.a11y.atspi.Registry",
                                                "/org/a11y/atspi/accessible/root",
                                                introspect=False)
                self.itf = dbus.Interface(self.obj, dbus_interface="org.a11y.atspi.Accessible")
                return self.register_apps

        def register_apps(self):
                #self.itf.registerApplication(":R456", ignore_reply=True)
                #self.itf.registerApplication(":R123", ignore_reply=True)
                return self.print_applications

        def print_applications(self):
                apps = self.itf.GetChildren()
                print apps
                return self.teardown

        def teardown(self):
                self._loop.quit()

def main(argv):
        bus = dbus.SessionBus()
        obj = bus.get_object("org.a11y.Bus",
                             "/org/a11y/bus",
                             introspect=False)
        itf = dbus.Interface(obj, dbus_interface="org.a11y.Bus")
        address = itf.GetAddress()

        bus = dbus.bus.BusConnection(str(address))
        loop = gobject.MainLoop()
        stateM = IdleStateM(bus, loop)
        gobject.idle_add(stateM.idle_handler)
        loop.run()

if __name__=="__main__":
        sys.exit(main(sys.argv))