61 lines
2.4 KiB
Python
61 lines
2.4 KiB
Python
"""Subclass of TubeConnection that converts handles to Sugar Buddies"""
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# Copyright (C) 2008 One Laptop Per Child
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from telepathy.constants import (
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CHANNEL_GROUP_FLAG_CHANNEL_SPECIFIC_HANDLES)
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from sugar.presence.tubeconn import TubeConnection
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from sugar.presence import presenceservice
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class SugarTubeConnection(TubeConnection):
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"""Subclass of TubeConnection that converts handles to Sugar Buddies"""
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def __new__(cls, conn, tubes_iface, tube_id, address=None,
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group_iface=None, mainloop=None):
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self = super(SugarTubeConnection, cls).__new__(
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cls, conn, tubes_iface, tube_id, address=address,
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group_iface=group_iface, mainloop=mainloop)
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self._conn = conn
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self._group_iface = group_iface
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return self
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def get_buddy(self, cs_handle):
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"""Retrieve a Buddy object given a telepathy handle.
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cs_handle: A channel-specific CONTACT type handle.
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returns: sugar.presence Buddy object or None
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"""
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pservice = presenceservice.get_instance()
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if self.self_handle == cs_handle:
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# It's me, just get my global handle
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handle = self._conn.GetSelfHandle()
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elif self._group_iface.GetGroupFlags() & \
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CHANNEL_GROUP_FLAG_CHANNEL_SPECIFIC_HANDLES:
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# The group (channel) has channel specific handles
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handle = self._group_iface.GetHandleOwners([cs_handle])[0]
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else:
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# The group does not have channel specific handles
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handle = cs_handle
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# deal with failure to get the handle owner
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if handle == 0:
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return None
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return pservice.get_buddy_by_telepathy_handle(
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self._conn.service_name, self._conn.object_path, handle)
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