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# 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
import telepathy
from gobject import property, SIGNAL_RUN_FIRST, TYPE_PYOBJECT
from sugar.activity.activity import Activity
from sugar.presence.sugartubeconn import SugarTubeConnection
logger = logging.getLogger('flipsticks')
class CanvasActivity(Activity):
__gsignals__ = {
'init' : (SIGNAL_RUN_FIRST, None, []) }
def __init__(self, canvas, *args):
Activity.__init__(self, *args)
self._inited = False
# XXX do it after(possible) read_file() invoking
# have to rely on calling read_file() from map_cb in sugar-toolkit
canvas.connect_after('map', self._map_canvasactivity_cb)
self.set_canvas(canvas)
def get_inited(self):
return self._inited
inited = property(type=bool, default=False, getter=get_inited, setter=None)
def _map_canvasactivity_cb(self, widget):
self._inited = True
self.emit('init')
return False
class SharedActivity(CanvasActivity):
__gsignals__ = {
'tube' : (SIGNAL_RUN_FIRST, None, 2*[TYPE_PYOBJECT]) }
def __init__(self, canvas, service, *args):
CanvasActivity.__init__(self, canvas, *args)
self.service = service
self._postpone_tubes = []
self.connect_after('init', self._init_sharedactivity_cb)
self.connect('shared', self._shared_cb)
# Owner.props.key
if self._shared_activity:
# We are joining the activity
self.connect('joined', self._joined_cb)
if self.get_shared():
# We've already joined
self._joined_cb()
def _init_sharedactivity_cb(self, sender):
for i in self._postpone_tubes:
self.emit('tube', i, self._initiating)
self._postpone_tubes = []
def _shared_cb(self, activity):
logger.debug('My activity was shared')
self._initiating = True
self._sharing_setup()
logger.debug('This is my activity: making a tube...')
id = self._tubes_chan[telepathy.CHANNEL_TYPE_TUBES].OfferDBusTube(
self.service, {})
def _joined_cb(self, activity):
if not self._shared_activity:
return
logger.debug('Joined an existing shared activity')
self._initiating = False
self._sharing_setup()
logger.debug('This is not my activity: waiting for a tube...')
self._tubes_chan[telepathy.CHANNEL_TYPE_TUBES].ListTubes(
reply_handler=self._list_tubes_reply_cb,
error_handler=self._list_tubes_error_cb)
def _sharing_setup(self):
if self._shared_activity is None:
logger.error('Failed to share or join activity')
return
self._conn = self._shared_activity.telepathy_conn
self._tubes_chan = self._shared_activity.telepathy_tubes_chan
self._text_chan = self._shared_activity.telepathy_text_chan
self._tubes_chan[telepathy.CHANNEL_TYPE_TUBES].connect_to_signal('NewTube', self._new_tube_cb)
def _list_tubes_reply_cb(self, tubes):
for tube_info in tubes:
self._new_tube_cb(*tube_info)
def _list_tubes_error_cb(self, e):
logger.error('ListTubes() failed: %s', e)
def _new_tube_cb(self, id, initiator, type, service, params, state):
logger.debug('New tube: ID=%d initator=%d type=%d service=%s '
'params=%r state=%d', id, initiator, type, service,
params, state)
if (type == telepathy.TUBE_TYPE_DBUS and
service == self.service):
if state == telepathy.TUBE_STATE_LOCAL_PENDING:
self._tubes_chan[telepathy.CHANNEL_TYPE_TUBES].AcceptDBusTube(id)
tube_conn = SugarTubeConnection(self._conn,
self._tubes_chan[telepathy.CHANNEL_TYPE_TUBES],
id, group_iface=self._text_chan[telepathy.CHANNEL_INTERFACE_GROUP])
if self.get_inited():
self.emit('tube', tube_conn, self._initiating)
else:
self._postpone_tubes.append(tube_conn)
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