1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
# 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 create_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__ = {
'success': (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE, ([])),
'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))
self.emit('success')
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(create_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(create_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(create_activity_id())
activity_handle.object_id = object_id
return ActivityCreationHandler(service_name, activity_handle)
|
