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# Copyright (C) 2006, Red Hat, Inc.
#
# This library 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) any later version.
#
# This library 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 this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
import os
import sys
import logging
import dbus
import dbus.service
import gobject
import gtk
from sugar.presence.PresenceService import PresenceService
from sugar.activity import Activity
from sugar.activity.bundle import Bundle
from sugar import logger
def get_path(activity_name):
"""Returns the activity path"""
return '/' + activity_name.replace('.', '/')
class ActivityFactory(dbus.service.Object):
"""Dbus service that takes care of creating new instances of an activity"""
def __init__(self, activity_type, activity_class):
self._activity_type = activity_type
self._activities = []
splitted_module = activity_class.rsplit('.', 1)
module_name = splitted_module[0]
class_name = splitted_module[1]
module = __import__(module_name)
for comp in module_name.split('.')[1:]:
module = getattr(module, comp)
if hasattr(module, 'start'):
module.start()
self._module = module
self._constructor = getattr(module, class_name)
bus = dbus.SessionBus()
factory = activity_type
bus_name = dbus.service.BusName(factory, bus = bus)
dbus.service.Object.__init__(self, bus_name, get_path(factory))
@dbus.service.method("com.redhat.Sugar.ActivityFactory")
def create(self):
activity = self._constructor()
self._activities.append(activity)
activity.connect('destroy', self._activity_destroy_cb)
return activity.window.xid
def _activity_destroy_cb(self, activity):
self._activities.remove(activity)
if hasattr(self._module, 'stop'):
self._module.stop()
if len(self._activities) == 0:
gtk.main_quit()
def create(activity_name):
"""Create a new activity from his name."""
bus = dbus.SessionBus()
factory_name = activity_name
factory_path = get_path(factory_name)
proxy_obj = bus.get_object(factory_name, factory_path)
factory = dbus.Interface(proxy_obj, "com.redhat.Sugar.ActivityFactory")
xid = factory.create()
bus = dbus.SessionBus()
proxy_obj = bus.get_object(Activity.get_service_name(xid),
Activity.get_object_path(xid))
activity = dbus.Interface(proxy_obj, Activity.ACTIVITY_INTERFACE)
return activity
def start_factory(activity_class, bundle_path):
"""Start the activity factory."""
bundle = Bundle(bundle_path)
logger.start(bundle.get_name())
os.environ['SUGAR_BUNDLE_PATH'] = bundle_path
os.environ['SUGAR_BUNDLE_SERVICE_NAME'] = bundle.get_service_name()
factory = ActivityFactory(bundle.get_service_name(), activity_class)
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