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         def initial_audio(self):
  45                 return False
  46
  47         def initial_video(self):
  48                 return False
  49
  50         def get_props(self):
  51                 # HACK Older python-telepathy doesn't provide this
  52                 _immutable_properties = {
  53                         'ChannelType': telepathy.server.interfaces.CHANNEL_INTERFACE,
  54                         'TargetHandle': telepathy.server.interfaces.CHANNEL_INTERFACE,
  55                         'Interfaces': telepathy.server.interfaces.CHANNEL_INTERFACE,
  56                         'TargetHandleType': telepathy.server.interfaces.CHANNEL_INTERFACE,
  57                         'TargetID': telepathy.server.interfaces.CHANNEL_INTERFACE,
  58                         'Requested': telepathy.server.interfaces.CHANNEL_INTERFACE
  59                 }
  60                 props = dict()
  61                 for prop, iface in _immutable_properties.items():
  62                         props[iface + '.' + prop] = \
  63                                 self._prop_getters[iface][prop]()
  64                 return props
  65
  66         @gtk_toolbox.log_exception(_moduleLogger)
  67         def Close(self):
  68                 self.close()
  69
  70         def close(self):
  71                 telepathy.server.ChannelTypeStreamedMedia.Close(self)
  72                 if self.__manager.channel_exists(self.__props):
  73                         # HACK Older python-telepathy requires doing this manually
  74                         self.__manager.remove_channel(self)
  75                 self.remove_from_connection()
  76
  77         @gtk_toolbox.log_exception(_moduleLogger)
  78         def ListStreams(self):
  79                 """
  80                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
  81                 """
  82                 return ()
  83
  84         @gtk_toolbox.log_exception(_moduleLogger)
  85         def RemoveStreams(self, streams):
  86                 """
  87                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
  88                 """
  89                 raise telepathy.errors.NotImplemented("Cannot remove a stream")
  90
  91         @gtk_toolbox.log_exception(_moduleLogger)
  92         def RequestStreamDirection(self, stream, streamDirection):
  93                 """
  94                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
  95
  96                 @note Since streams are short lived, not bothering to implement this
  97                 """
  98                 _moduleLogger.info("A request was made to change the stream direction")
  99                 raise telepathy.errors.NotImplemented("Cannot change directions")
 100
 101         @gtk_toolbox.log_exception(_moduleLogger)
 102         def RequestStreams(self, contactId, streamTypes):
 103                 """
 104                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 105
 106                 @returns [(Stream ID, contact, stream type, stream state, stream direction, pending send flags)]
 107                 """
 108                 contact = self._conn.handle(telepathy.constants.HANDLE_TYPE_CONTACT, contactId)
 109                 assert self.__contactHandle == contact, "%r != %r" % (self.__contactHandle, contact)
 110                 contactId, contactNumber = handle.ContactHandle.from_handle_name(contact.name)
 111
 112                 self.CallStateChanged(self.__contactHandle, telepathy.constants.CHANNEL_CALL_STATE_RINGING)
 113                 self._conn.session.backend.call(contactNumber)
 114                 self.CallStateChanged(self.__contactHandle, telepathy.constants.CHANNEL_CALL_STATE_FORWARDED)
 115
 116                 streamId = 0
 117                 streamState = telepathy.constants.MEDIA_STREAM_STATE_DISCONNECTED
 118                 streamDirection = telepathy.constants.MEDIA_STREAM_DIRECTION_BIDIRECTIONAL
 119                 pendingSendFlags = telepathy.constants.MEDIA_STREAM_PENDING_REMOTE_SEND
 120                 return [(streamId, contact, streamTypes[0], streamState, streamDirection, pendingSendFlags)]
 121
 122         @gtk_toolbox.log_exception(_moduleLogger)
 123         def GetCallStates(self):
 124                 """
 125                 For org.freedesktop.Telepathy.Channel.Interface.CallState
 126
 127                 Get the current call states for all contacts involved in this call.
 128                 @returns {Contact: telepathy.constants.CHANNEL_CALL_STATE_*}
 129                 """
 130                 return {self.__contactHandle: telepathy.constants.CHANNEL_CALL_STATE_FORWARDED}