46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
import logging
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from sugar.chat.GroupChat import GroupChat
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class ActivityChat(GroupChat):
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SERVICE_TYPE = "_olpc_activity_chat._udp"
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def __init__(self, activity):
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GroupChat.__init__(self)
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self._chat_service = None
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self._activity = activity
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self._pservice.register_service_type(ActivityChat.SERVICE_TYPE)
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self._pservice.connect('service-appeared', self._service_appeared_cb)
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# Find an existing activity chat to latch onto
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ps_activity = self._pservice.get_activity(activity.get_id())
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if ps_activity is not None:
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service = ps_activity.get_service_of_type(ActivityChat.SERVICE_TYPE)
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if service is not None:
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self._service_appeared_cb(self._pservice, None, service)
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def _service_appeared_cb(self, pservice, buddy, service):
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if service.get_activity_id() != self._activity.get_id():
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return
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if service.get_type() != ActivityChat.SERVICE_TYPE:
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return
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if self._chat_service:
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return
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logging.debug('Activity chat service appeared, setup the stream.')
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# Ok, there's an existing chat service that we copy
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# parameters and such from
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addr = service.get_address()
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port = service.get_port()
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self._chat_service = self._pservice.share_activity(self._activity,
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stype=ActivityChat.SERVICE_TYPE, properties=None,
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address=addr, port=port)
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self._setup_stream(self._chat_service)
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def publish(self):
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"""Only called when we publish the activity this chat is tied to."""
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self._chat_service = self._pservice.share_activity(self._activity,
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stype=ActivityChat.SERVICE_TYPE)
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self._setup_stream(self._chat_service)
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