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authorRaul Gutierrez Segales <raul.gutierrez.segales@collabora.co.uk>2011-01-20 15:58:18 (GMT)
committer Raul Gutierrez Segales <raul.gutierrez.segales@collabora.co.uk>2011-01-31 17:39:03 (GMT)
commit3bd9ef8bbf8e899e29cf5aee36242bb0b8405130 (patch)
tree68771fd34b46a5a2d9c06e5866b810dc886e38e0 /collaboration/tubeconn.py
parenta170f54f4cc1521d6554487c56db288a2d9c6041 (diff)
Collaboration support for non-Sugar apps
Diffstat (limited to 'collaboration/tubeconn.py')
-rw-r--r--collaboration/tubeconn.py114
1 files changed, 114 insertions, 0 deletions
diff --git a/collaboration/tubeconn.py b/collaboration/tubeconn.py
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+++ b/collaboration/tubeconn.py
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+# This should eventually land in telepathy-python, so has the same license:
+
+# Copyright (C) 2007 Collabora Ltd. <http://www.collabora.co.uk/>
+#
+# This program 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 2.1 of the License, or
+# (at your option) any later version.
+#
+# This program 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 program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+"""
+STABLE.
+"""
+
+__all__ = ('TubeConnection', )
+__docformat__ = 'reStructuredText'
+
+
+import logging
+
+from dbus.connection import Connection
+
+
+logger = logging.getLogger('telepathy.tubeconn')
+
+
+class TubeConnection(Connection):
+
+ def __new__(cls, conn, tubes_iface, tube_id, address=None,
+ group_iface=None, mainloop=None):
+ # pylint: disable=W0212
+ # Confused by __new__
+ if address is None:
+ address = tubes_iface.GetDBusTubeAddress(tube_id)
+ self = super(TubeConnection, cls).__new__(cls, address,
+ mainloop=mainloop)
+
+ self._tubes_iface = tubes_iface
+ self.tube_id = tube_id
+ self.participants = {}
+ self.bus_name_to_handle = {}
+ self._mapping_watches = []
+
+ if group_iface is None:
+ method = conn.GetSelfHandle
+ else:
+ method = group_iface.GetSelfHandle
+ method(reply_handler=self._on_get_self_handle_reply,
+ error_handler=self._on_get_self_handle_error)
+
+ return self
+
+ def _on_get_self_handle_reply(self, handle):
+ # pylint: disable=W0201
+ # Confused by __new__
+ self.self_handle = handle
+ match = self._tubes_iface.connect_to_signal('DBusNamesChanged',
+ self._on_dbus_names_changed)
+ self._tubes_iface.GetDBusNames(self.tube_id,
+ reply_handler=self._on_get_dbus_names_reply,
+ error_handler=self._on_get_dbus_names_error)
+ self._dbus_names_changed_match = match
+
+ def _on_get_self_handle_error(self, e):
+ logging.basicConfig()
+ logger.error('GetSelfHandle failed: %s', e)
+
+ def close(self):
+ self._dbus_names_changed_match.remove()
+ self._on_dbus_names_changed(self.tube_id, (), self.participants.keys())
+ super(TubeConnection, self).close()
+
+ def _on_get_dbus_names_reply(self, names):
+ self._on_dbus_names_changed(self.tube_id, names, ())
+
+ def _on_get_dbus_names_error(self, e):
+ logging.basicConfig()
+ logger.error('GetDBusNames failed: %s', e)
+
+ def _on_dbus_names_changed(self, tube_id, added, removed):
+ if tube_id == self.tube_id:
+ for handle, bus_name in added:
+ if handle == self.self_handle:
+ # I've just joined - set my unique name
+ self.set_unique_name(bus_name)
+ self.participants[handle] = bus_name
+ self.bus_name_to_handle[bus_name] = handle
+
+ # call the callback while the removed people are still in
+ # participants, so their bus names are available
+ for callback in self._mapping_watches:
+ callback(added, removed)
+
+ for handle in removed:
+ bus_name = self.participants.pop(handle, None)
+ self.bus_name_to_handle.pop(bus_name, None)
+
+ def watch_participants(self, callback):
+ self._mapping_watches.append(callback)
+ if self.participants:
+ # GetDBusNames already returned: fake a participant add event
+ # immediately
+ added = []
+ for k, v in self.participants.iteritems():
+ added.append((k, v))
+ callback(added, [])