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# Copyright (C) 2009, Aleksey Lim
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import logging
from dbus.gobject_service import ExportedGObject
from dbus.service import method, signal
from sugar3.presence import presenceservice
import face
logger = logging.getLogger('speak')
SERVICE = 'org.sugarlabs.Speak'
IFACE = SERVICE
PATH = '/org/sugarlabs/Speak'
class Messenger(ExportedGObject):
def __init__(self, tube, is_initiator, chat):
ExportedGObject.__init__(self, tube, PATH)
self.is_initiator = is_initiator
self.chat = chat
self._tube = tube
self._entered = False
self._buddies = {}
self._tube.watch_participants(self._participant_change_cb)
def post(self, text):
if text == None:
text = ''
self._post(self.chat.me.status.serialize(), text)
def _participant_change_cb(self, added, removed):
if removed:
for i in removed:
buddy = self._buddies.get(i)
if buddy:
logger.debug('buddy %s left chat'
% self._buddies[i].props.nick)
self.chat.farewell(self._buddies[i])
del self._buddies[i]
else:
logger.warning('_participant_change_cb: cannot find buddy')
else:
if not self._entered:
self.me = self._tube.get_unique_name()
self._tube.add_signal_receiver(self._ping_cb,
'_ping',
IFACE,
path=PATH,
sender_keyword='sender')
self._tube.add_signal_receiver(self._post_cb,
'_post',
IFACE,
path=PATH,
sender_keyword='sender')
if not self.is_initiator:
self._ping(self.chat.me.status.serialize())
self._entered = True
@signal(IFACE, signature='s')
def _ping(self, status):
logger.debug('send ping')
pass
@signal(IFACE, signature='ss')
def _post(self, status, text):
logger.debug('send message: %s' % text)
pass
@method(dbus_interface=IFACE, in_signature='s', out_signature='',
sender_keyword='sender')
def _pong(self, sender_status, sender=None):
tp_handle = self._tube.bus_name_to_handle[sender]
buddy = self._buddies[tp_handle] = self._tube.get_buddy(tp_handle)
logger.debug('pong received from %s(%s) status=%s' \
% (sender, buddy.props.nick, sender_status))
self.chat.post(buddy, face.Status().deserialize(sender_status), None)
def _ping_cb(self, sender_status, sender=None):
if sender == self.me:
return
tp_handle = self._tube.bus_name_to_handle[sender]
buddy = self._tube.get_buddy(tp_handle)
if not buddy:
return
self._buddies[tp_handle] = buddy
logger.debug('ping received from %s(%s) status=%s' \
% (sender, buddy.props.nick, sender_status))
self.chat.post(buddy, face.Status().deserialize(sender_status), None)
remote_object = self._tube.get_object(sender, PATH)
remote_object._pong(self.chat.me.status.serialize())
def _post_cb(self, sender_status, text, sender=None):
if sender == self.me:
return
if not text:
text = None
tp_handle = self._tube.bus_name_to_handle[sender]
buddy = self._buddies[tp_handle]
logger.debug('message received from %s(%s): %s'
% (sender, buddy.props.nick, text))
self.chat.post(buddy, face.Status().deserialize(sender_status), text)
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