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from sugar.activity import activity
from sugar.presence import presenceservice
from sugar.presence.tubeconn import TubeConnection
import telepathy
import telepathy.client
from dbus import Interface
from dbus.service import method, signal
from dbus.gobject_service import ExportedGObject
SERVICE = 'org.freedesktop.Telepathy.Tube.Connect'
IFACE = SERVICE
PATH = '/org/freedesktop/Telepathy/Tube/Connect'
class Shared(activity.Activity):
def __init__(self, handle):
activity.Activity.__init__(self,handle)
# mesh stuff
self.pservice = presenceservice.get_instance()
owner = self.pservice.get_owner()
self.owner = owner
try:
name, path = self.pservice.get_preferred_connection()
self.tp_conn_name = name
self.tp_conn_path = path
self.conn = telepathy.client.Connection(name, path)
except TypeError:
pass
self.initiating = None
#sharing stuff
self.game = None
self.connect('shared', self._shared_cb)
if self._shared_activity:
# we are joining the activity
self.connect('joined', self._joined_cb)
if self.get_shared():
# oh, OK, we've already joined
self._joined_cb()
else:
# we are creating the activity
pass
def _shared_cb(self,activity):
self.initiating = True
self._setup()
id = self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES].OfferDBusTube(
SERVICE, {})
#self.app.export.set_label('Shared Me')
def _joined_cb(self,activity):
if self.game is not None:
return
if not self._shared_activity:
return
#for buddy in self._shared_activity.get_joined_buddies():
# self.buddies_panel.add_watcher(buddy)
#logger.debug('Joined an existing Connect game')
#self.app.export.set_label('Joined You')
self.initiating = False
self._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 _setup(self):
if self._shared_activity is None:
return
bus_name, conn_path, channel_paths = self._shared_activity.get_channels()
# Work out what our room is called and whether we have Tubes already
room = None
tubes_chan = None
text_chan = None
for channel_path in channel_paths:
channel = telepathy.client.Channel(bus_name, channel_path)
htype, handle = channel.GetHandle()
if htype == telepathy.HANDLE_TYPE_ROOM:
#logger.debug('Found our room: it has handle#%d "%s"',
# handle, self.conn.InspectHandles(htype, [handle])[0])
room = handle
ctype = channel.GetChannelType()
if ctype == telepathy.CHANNEL_TYPE_TUBES:
#logger.debug('Found our Tubes channel at %s', channel_path)
tubes_chan = channel
elif ctype == telepathy.CHANNEL_TYPE_TEXT:
#logger.debug('Found our Text channel at %s', channel_path)
text_chan = channel
if room is None:
#logger.error("Presence service didn't create a room")
return
if text_chan is None:
#logger.error("Presence service didn't create a text channel")
return
# Make sure we have a Tubes channel - PS doesn't yet provide one
if tubes_chan is None:
#logger.debug("Didn't find our Tubes channel, requesting one...")
tubes_chan = self.conn.request_channel(telepathy.CHANNEL_TYPE_TUBES,
telepathy.HANDLE_TYPE_ROOM, room, True)
self.tubes_chan = tubes_chan
self.text_chan = text_chan
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)
pass
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 (self.game is None and type == telepathy.TUBE_TYPE_DBUS and
service == SERVICE):
if state == telepathy.TUBE_STATE_LOCAL_PENDING:
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES].AcceptDBusTube(id)
tube_conn = TubeConnection(self.conn,
self.tubes_chan[telepathy.CHANNEL_TYPE_TUBES],
id, group_iface=self.text_chan[telepathy.CHANNEL_INTERFACE_GROUP])
self.game = ConnectGame(tube_conn, self.initiating, self)
class ConnectGame(ExportedGObject):
def __init__(self,tube, is_initiator, activity):
super(ConnectGame,self).__init__(tube,PATH)
self.tube = tube
self.is_initiator = is_initiator
self.entered = False
self.activity = activity
self.ordered_bus_names=[]
self.tube.watch_participants(self.participant_change_cb)
def participant_change_cb(self, added, removed):
if not self.entered:
if self.is_initiator:
self.add_hello_handler()
else:
self.Hello()
self.entered = True
@signal(dbus_interface=IFACE,signature='')
def Hello(self):
"""Request that this player's Welcome method is called to bring it
up to date with the game state.
"""
@method(dbus_interface=IFACE, in_signature='s', out_signature='')
def Welcome(self, sdata):
#sdata is the zip file contents
#self.activity.app.lessonplans.set_label('got data to restore')
self.activity.app.restore(str(sdata))
def add_hello_handler(self):
self.tube.add_signal_receiver(self.hello_cb, 'Hello', IFACE,
path=PATH, sender_keyword='sender')
def hello_cb(self, sender=None):
self.tube.get_object(sender, PATH).Welcome(self.activity.app.getsdata(),dbus_interface=IFACE)
"""
def getsdata(self):
#self.lessonplans.set_label('getting sdata')
# THE BELOW SHOULD WORK BUT DOESN'T
#zf = StringIO.StringIO()
#self.savetozip(zf)
#zf.seek(0)
#sdata = zf.read()
#zf.close()
# END OF STUFF THAT DOESN'T WORK
sdd = {}
tmpbgpath = os.path.join(TMPDIR,'back.png')
self.bgpixbuf.save(tmpbgpath,'png')
sdd['pngdata'] = file(tmpbgpath).read()
os.remove(tmpbgpath)
sdd['fgpixbufpaths'] = self.fgpixbufpaths
#sdd['fgpixbufs'] = []
#count = 1
#for pixbuf in self.fgpixbufs:
# filename = '%02d.png' % count
# filepath = os.path.join(TMPDIR,filename)
# pixbuf.save(filepath,'png')
# sdd['fgpixbufs'].append(file(filepath).read())
# os.remove(filepath)
# count += 1
return pickle.dumps(sdd)
"""
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