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110 lines
3.8 KiB
Python
110 lines
3.8 KiB
Python
# Copyright (C) 2006, Red Hat, Inc.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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import logging
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import dbus
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import gobject
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import gtk
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from sugar.presence import PresenceService
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from sugar.activity import bundleregistry
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from sugar.activity.activityhandle import ActivityHandle
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from sugar import util
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_ACTIVITY_SERVICE_NAME = "org.laptop.Activity"
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_ACTIVITY_SERVICE_PATH = "/org/laptop/Activity"
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_ACTIVITY_INTERFACE = "org.laptop.Activity"
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def create_activity_id():
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pservice = PresenceService.get_instance()
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# create a new unique activity ID
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i = 0
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act_id = None
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while i < 10:
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act_id = util.unique_id()
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i += 1
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# check through network activities
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found = False
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activities = pservice.get_activities()
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for act in activities:
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if act_id == act.get_id():
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found = True
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break
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if found:
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raise RuntimeError("Cannot generate unique activity id.")
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return act_id
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class ActivityCreationHandler(gobject.GObject):
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__gsignals__ = {
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'success': (gobject.SIGNAL_RUN_FIRST,
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gobject.TYPE_NONE, ([])),
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'error': (gobject.SIGNAL_RUN_FIRST,
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gobject.TYPE_NONE,
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([gobject.TYPE_PYOBJECT]))
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}
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def __init__(self, service_name, activity_handle):
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gobject.GObject.__init__(self)
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self._service_name = service_name
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self._activity_handle = activity_handle
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registry = bundleregistry.get_registry()
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bundle = registry.get_bundle(service_name)
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bus = dbus.SessionBus()
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proxy_obj = bus.get_object(service_name, bundle.get_object_path(), follow_name_owner_changes=True)
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factory = dbus.Interface(proxy_obj, "com.redhat.Sugar.ActivityFactory")
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factory.create(self._activity_handle.get_dict(),
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reply_handler=self._reply_handler,
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error_handler=self._error_handler)
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def get_activity_id(self):
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return self._activity_handle.activity_id
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def _reply_handler(self, xid):
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logging.debug("Activity created %s (%s)." %
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(self._activity_handle.activity_id, self._service_name))
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self.emit('success')
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def _error_handler(self, err):
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logging.debug("Couldn't create activity %s (%s): %s" %
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(self._activity_handle.activity_id, self._service_name, err))
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self.emit('error', err)
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def create(service_name, activity_handle=None):
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"""Create a new activity from its name."""
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if not activity_handle:
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activity_handle = ActivityHandle(create_activity_id())
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return ActivityCreationHandler(service_name, activity_handle)
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def create_with_uri(service_name, uri):
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"""Create a new activity and pass the uri as handle."""
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activity_handle = ActivityHandle(create_activity_id())
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activity_handle.uri = uri
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return ActivityCreationHandler(service_name, activity_handle)
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def create_with_object_id(service_name, object_id):
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"""Create a new activity and pass the object id as handle."""
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activity_handle = ActivityHandle(create_activity_id())
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activity_handle.object_id = object_id
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return ActivityCreationHandler(service_name, activity_handle)
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