b21f1a3b80
* set follow_name_owner_changes to true when creating a proxy for an activity which causes proxies to be late bound and not make a blocking call to start a service
109 lines
3.7 KiB
Python
109 lines
3.7 KiB
Python
# 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 logging
|
|
|
|
import dbus
|
|
import gobject
|
|
import gtk
|
|
|
|
from sugar.presence import PresenceService
|
|
from sugar.activity import bundleregistry
|
|
from sugar.activity.activityhandle import ActivityHandle
|
|
from sugar import util
|
|
|
|
_ACTIVITY_SERVICE_NAME = "org.laptop.Activity"
|
|
_ACTIVITY_SERVICE_PATH = "/org/laptop/Activity"
|
|
_ACTIVITY_INTERFACE = "org.laptop.Activity"
|
|
|
|
def _find_activity_id():
|
|
pservice = PresenceService.get_instance()
|
|
|
|
# create a new unique activity ID
|
|
i = 0
|
|
act_id = None
|
|
while i < 10:
|
|
act_id = util.unique_id()
|
|
i += 1
|
|
|
|
# check through network activities
|
|
found = False
|
|
activities = pservice.get_activities()
|
|
for act in activities:
|
|
if act_id == act.get_id():
|
|
found = True
|
|
break
|
|
if found:
|
|
raise RuntimeError("Cannot generate unique activity id.")
|
|
|
|
return act_id
|
|
|
|
class ActivityCreationHandler(gobject.GObject):
|
|
|
|
__gsignals__ = {
|
|
'error': (gobject.SIGNAL_RUN_FIRST,
|
|
gobject.TYPE_NONE,
|
|
([gobject.TYPE_PYOBJECT])),
|
|
}
|
|
|
|
def __init__(self, service_name, activity_handle):
|
|
gobject.GObject.__init__(self)
|
|
|
|
self._service_name = service_name
|
|
self._activity_handle = activity_handle
|
|
|
|
registry = bundleregistry.get_registry()
|
|
bundle = registry.get_bundle(service_name)
|
|
|
|
bus = dbus.SessionBus()
|
|
proxy_obj = bus.get_object(service_name, bundle.get_object_path(), follow_name_owner_changes=True)
|
|
factory = dbus.Interface(proxy_obj, "com.redhat.Sugar.ActivityFactory")
|
|
|
|
factory.create(self._activity_handle.get_dict(),
|
|
reply_handler=self._reply_handler,
|
|
error_handler=self._error_handler)
|
|
|
|
def get_activity_id(self):
|
|
return self._activity_handle.activity_id
|
|
|
|
def _reply_handler(self, xid):
|
|
logging.debug("Activity created %s (%s)." %
|
|
(self._activity_handle.activity_id, self._service_name))
|
|
|
|
def _error_handler(self, err):
|
|
logging.debug("Couldn't create activity %s (%s): %s" %
|
|
(self._activity_handle.activity_id, self._service_name, err))
|
|
self.emit('error', err)
|
|
|
|
def create(service_name, activity_handle=None):
|
|
"""Create a new activity from its name."""
|
|
if not activity_handle:
|
|
activity_handle = ActivityHandle(_find_activity_id())
|
|
return ActivityCreationHandler(service_name, activity_handle)
|
|
|
|
def create_with_uri(service_name, uri):
|
|
"""Create a new activity and pass the uri as handle."""
|
|
activity_handle = ActivityHandle(_find_activity_id())
|
|
activity_handle.uri = uri
|
|
return ActivityCreationHandler(service_name, activity_handle)
|
|
|
|
def create_with_object_id(service_name, object_id):
|
|
"""Create a new activity and pass the object id as handle."""
|
|
activity_handle = ActivityHandle(_find_activity_id())
|
|
activity_handle.object_id = object_id
|
|
return ActivityCreationHandler(service_name, activity_handle)
|