# 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 sugar4.presence package.
"""
from functools import partial
import dbus
from dbus import PROPERTIES_IFACE
from gi.repository import TelepathyGLib
[docs]
ACCOUNT_MANAGER_SERVICE = TelepathyGLib.ACCOUNT_MANAGER_BUS_NAME
[docs]
ACCOUNT_MANAGER_PATH = TelepathyGLib.ACCOUNT_MANAGER_OBJECT_PATH
[docs]
ACCOUNT_MANAGER = TelepathyGLib.IFACE_ACCOUNT_MANAGER
[docs]
ACCOUNT = TelepathyGLib.IFACE_ACCOUNT
[docs]
CONNECTION = TelepathyGLib.IFACE_CONNECTION
[docs]
CONNECTION_STATUS_CONNECTED = TelepathyGLib.ConnectionStatus.CONNECTED
[docs]
class Connection(object):
[docs]
def __init__(self, account_path, connection):
[docs]
self.account_path = account_path
[docs]
self.connection = connection
[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