git.maemo.org Git - theonering/blob - src/channel/call.py

   1 import logging
   2
   3 import telepathy
   4
   5 import gtk_toolbox
   6 import handle
   7
   8
   9 _moduleLogger = logging.getLogger("channel.call")
  10
  11
  12 class CallChannel(
  13                 telepathy.server.ChannelTypeStreamedMedia,
  14                 telepathy.server.ChannelInterfaceCallState,
  15                 telepathy.server.ChannelInterfaceGroup,
  16         ):
  17
  18         def __init__(self, connection, manager, props, contactHandle):
  19                 self.__manager = manager
  20                 self.__props = props
  21
  22                 try:
  23                         # HACK Older python-telepathy way
  24                         telepathy.server.ChannelTypeStreamedMedia.__init__(self, connection, None)
  25                         self._requested = props[telepathy.interfaces.CHANNEL_INTERFACE + '.Requested']
  26                         self._implement_property_get(
  27                                 telepathy.interfaces.CHANNEL_INTERFACE,
  28                                 {"Requested": lambda: self._requested}
  29                         )
  30                 except TypeError:
  31                         # HACK Newer python-telepathy way
  32                         telepathy.server.ChannelTypeStreamedMedia.__init__(self, connection, manager, props)
  33                 telepathy.server.ChannelInterfaceCallState.__init__(self)
  34                 telepathy.server.ChannelInterfaceGroup.__init__(self)
  35                 self.__contactHandle = contactHandle
  36                 self._implement_property_get(
  37                         telepathy.interfaces.CHANNEL_TYPE_STREAMED_MEDIA,
  38                         {
  39                                 "InitialAudio": self.initial_audio,
  40                                 "InitialVideo": self.initial_video,
  41                         },
  42                 )
  43
  44                 self.GroupFlagsChanged(0, 0)
  45                 self.MembersChanged(
  46                         '', [self._conn.GetSetHandle()], [], [], [contactHandle],
  47                         0, telepathy.CHANNEL_GROUP_CHANGE_REASON_NONE
  48                 )
  49
  50         def initial_audio(self):
  51                 return False
  52
  53         def initial_video(self):
  54                 return False
  55
  56         def get_props(self):
  57                 # HACK Older python-telepathy doesn't provide this
  58                 _immutable_properties = {
  59                         'ChannelType': telepathy.server.interfaces.CHANNEL_INTERFACE,
  60                         'TargetHandle': telepathy.server.interfaces.CHANNEL_INTERFACE,
  61                         'Interfaces': telepathy.server.interfaces.CHANNEL_INTERFACE,
  62                         'TargetHandleType': telepathy.server.interfaces.CHANNEL_INTERFACE,
  63                         'TargetID': telepathy.server.interfaces.CHANNEL_INTERFACE,
  64                         'Requested': telepathy.server.interfaces.CHANNEL_INTERFACE
  65                 }
  66                 props = dict()
  67                 for prop, iface in _immutable_properties.items():
  68                         props[iface + '.' + prop] = \
  69                                 self._prop_getters[iface][prop]()
  70                 return props
  71
  72         @gtk_toolbox.log_exception(_moduleLogger)
  73         def Close(self):
  74                 self.close()
  75
  76         def close(self):
  77                 telepathy.server.ChannelTypeStreamedMedia.Close(self)
  78                 if self.__manager.channel_exists(self.__props):
  79                         # HACK Older python-telepathy requires doing this manually
  80                         self.__manager.remove_channel(self)
  81                 self.remove_from_connection()
  82
  83         @gtk_toolbox.log_exception(_moduleLogger)
  84         def ListStreams(self):
  85                 """
  86                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
  87                 """
  88                 return ()
  89
  90         @gtk_toolbox.log_exception(_moduleLogger)
  91         def RemoveStreams(self, streams):
  92                 """
  93                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
  94                 """
  95                 raise telepathy.errors.NotImplemented("Cannot remove a stream")
  96
  97         @gtk_toolbox.log_exception(_moduleLogger)
  98         def RequestStreamDirection(self, stream, streamDirection):
  99                 """
 100                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 101
 102                 @note Since streams are short lived, not bothering to implement this
 103                 """
 104                 _moduleLogger.info("A request was made to change the stream direction")
 105                 raise telepathy.errors.NotImplemented("Cannot change directions")
 106
 107         @gtk_toolbox.log_exception(_moduleLogger)
 108         def RequestStreams(self, contactId, streamTypes):
 109                 """
 110                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 111
 112                 @returns [(Stream ID, contact, stream type, stream state, stream direction, pending send flags)]
 113                 """
 114                 contact = self._conn.handle(telepathy.constants.HANDLE_TYPE_CONTACT, contactId)
 115                 assert self.__contactHandle == contact, "%r != %r" % (self.__contactHandle, contact)
 116                 contactId, contactNumber = handle.ContactHandle.from_handle_name(contact.name)
 117
 118                 self.CallStateChanged(self.__contactHandle, telepathy.constants.CHANNEL_CALL_STATE_RINGING)
 119                 self._conn.session.backend.call(contactNumber)
 120                 self.CallStateChanged(self.__contactHandle, telepathy.constants.CHANNEL_CALL_STATE_FORWARDED)
 121
 122                 streamId = 0
 123                 streamState = telepathy.constants.MEDIA_STREAM_STATE_DISCONNECTED
 124                 streamDirection = telepathy.constants.MEDIA_STREAM_DIRECTION_BIDIRECTIONAL
 125                 pendingSendFlags = telepathy.constants.MEDIA_STREAM_PENDING_REMOTE_SEND
 126                 return [(streamId, contact, streamTypes[0], streamState, streamDirection, pendingSendFlags)]
 127
 128         @gtk_toolbox.log_exception(_moduleLogger)
 129         def GetCallStates(self):
 130                 """
 131                 For org.freedesktop.Telepathy.Channel.Interface.CallState
 132
 133                 Get the current call states for all contacts involved in this call.
 134                 @returns {Contact: telepathy.constants.CHANNEL_CALL_STATE_*}
 135                 """
 136                 return {self.__contactHandle: telepathy.constants.CHANNEL_CALL_STATE_FORWARDED}