# Copyright (C) 2010 Collabora Ltd. <http://www.collabora.co.uk/>
#
# 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.
"""
UNSTABLE. It should really be internal to the sugar.presence package.
"""
from functools import partial
import dbus
from dbus import PROPERTIES_IFACE
from gi.repository import TelepathyGLib
ACCOUNT_MANAGER_SERVICE = TelepathyGLib.ACCOUNT_MANAGER_BUS_NAME
ACCOUNT_MANAGER_PATH = TelepathyGLib.ACCOUNT_MANAGER_OBJECT_PATH
ACCOUNT_MANAGER = TelepathyGLib.IFACE_ACCOUNT_MANAGER
ACCOUNT = TelepathyGLib.IFACE_ACCOUNT
HANDLE_TYPE_CONTACT = TelepathyGLib.HandleType.CONTACT
CONNECTION = TelepathyGLib.IFACE_CONNECTION
CONNECTION_STATUS_CONNECTED = TelepathyGLib.ConnectionStatus.CONNECTED
[docs]
class Connection(object):
[docs]
def __init__(self, account_path, connection):
self.account_path = account_path
self.connection = connection
self.connected = False
[docs]
class ConnectionManager(object):
"""Track available telepathy connections"""
[docs]
def __init__(self):
self._connections_per_account = {}
bus = dbus.SessionBus()
obj = bus.get_object(ACCOUNT_MANAGER_SERVICE, ACCOUNT_MANAGER_PATH)
account_manager = dbus.Interface(obj, ACCOUNT_MANAGER)
account_paths = account_manager.Get(ACCOUNT_MANAGER, 'ValidAccounts',
dbus_interface=PROPERTIES_IFACE)
for account_path in account_paths:
obj = bus.get_object(ACCOUNT_MANAGER_SERVICE, account_path)
obj.connect_to_signal('AccountPropertyChanged',
partial(self.__account_property_changed_cb,
account_path))
connection_path = obj.Get(ACCOUNT, 'Connection')
if connection_path != '/':
self._track_connection(account_path, connection_path)
def __account_property_changed_cb(self, account_path, properties):
if 'Connection' not in properties:
return
if properties['Connection'] == '/':
if account_path in self._connections_per_account:
del self._connections_per_account[account_path]
else:
self._track_connection(account_path, properties['Connection'])
def _track_connection(self, account_path, connection_path):
connection_name = connection_path.replace('/', '.')[1:]
bus = dbus.SessionBus()
connection = bus.get_object(connection_name, connection_path)
connection.connect_to_signal('StatusChanged',
partial(self.__status_changed_cb,
account_path))
self._connections_per_account[account_path] = \
Connection(account_path, connection)
account = bus.get_object(ACCOUNT_MANAGER_SERVICE, account_path)
status = account.Get(ACCOUNT, 'ConnectionStatus')
if status == CONNECTION_STATUS_CONNECTED:
self._connections_per_account[account_path].connected = True
else:
self._connections_per_account[account_path].connected = False
def __status_changed_cb(self, account_path, status, reason):
if status == CONNECTION_STATUS_CONNECTED:
self._connections_per_account[account_path].connected = True
else:
self._connections_per_account[account_path].connected = False
[docs]
def get_preferred_connection(self):
best_connection = None, None
for account_path, connection in list(
self._connections_per_account.items()):
if 'salut' in account_path and connection.connected:
best_connection = account_path, connection.connection
elif 'gabble' in account_path and connection.connected:
best_connection = account_path, connection.connection
break
return best_connection
[docs]
def get_connection(self, account_path):
return self._connections_per_account[account_path].connection
[docs]
def get_connections_per_account(self):
return self._connections_per_account
[docs]
def get_account_for_connection(self, connection_path):
for account_path, connection in list(
self._connections_per_account.items()):
if connection.connection.object_path == connection_path:
return account_path
return None
_connection_manager = None
[docs]
def get_connection_manager():
global _connection_manager
if not _connection_manager:
_connection_manager = ConnectionManager()
return _connection_manager