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

   1 import logging
   2
   3 import dbus
   4 import gobject
   5 import telepathy
   6
   7 import tp
   8 import gtk_toolbox
   9
  10
  11 _moduleLogger = logging.getLogger("channel.call")
  12
  13
  14 class CallChannel(
  15                 tp.ChannelTypeStreamedMedia,
  16                 tp.ChannelInterfaceCallState,
  17                 tp.ChannelInterfaceGroup,
  18         ):
  19         # @bug On Maemo 5 this is having some kind of "General" error, possibly due to an issue with "GetAll" DBusProperties stuff
  20
  21         def __init__(self, connection, manager, props, contactHandle):
  22                 self.__manager = manager
  23                 self.__props = props
  24                 self.__cancelId = None
  25
  26                 if telepathy.interfaces.CHANNEL_INTERFACE + '.InitiatorHandle' in props:
  27                         self._initiator = connection.get_handle_by_id(
  28                                 telepathy.HANDLE_TYPE_CONTACT,
  29                                 props[telepathy.interfaces.CHANNEL_INTERFACE + '.InitiatorHandle'],
  30                         )
  31                 elif telepathy.interfaces.CHANNEL_INTERFACE + '.InitiatorID' in props:
  32                         self._initiator = connection.get_handle_by_name(
  33                                 telepathy.HANDLE_TYPE_CONTACT,
  34                                 props[telepathy.interfaces.CHANNEL_INTERFACE + '.InitiatorHandle'],
  35                         )
  36                 else:
  37                         # Maemo 5 seems to require InitiatorHandle/InitiatorID to be set
  38                         # even though I can't find them in the dbus spec.  I think its
  39                         # generally safe to assume that its locally initiated if not
  40                         # specified.  Specially for The One Ring, its always locally
  41                         # initiated
  42                         _moduleLogger.warning('InitiatorID or InitiatorHandle not set on new channel, assuming locally initiated')
  43                         self._initiator = connection.GetSelfHandle()
  44
  45                 tp.ChannelTypeStreamedMedia.__init__(self, connection, manager, props)
  46                 tp.ChannelInterfaceCallState.__init__(self)
  47                 tp.ChannelInterfaceGroup.__init__(self)
  48                 self.__contactHandle = contactHandle
  49                 self._implement_property_get(
  50                         telepathy.interfaces.CHANNEL_TYPE_STREAMED_MEDIA,
  51                         {
  52                                 "InitialAudio": self.initial_audio,
  53                                 "InitialVideo": self.initial_video,
  54                         },
  55                 )
  56                 self._implement_property_get(
  57                         telepathy.interfaces.CHANNEL_INTERFACE,
  58                         {
  59                                 'InitiatorHandle': lambda: dbus.UInt32(self._initiator.id),
  60                                 'InitiatorID': lambda: self._initiator.name,
  61                         },
  62                 )
  63
  64                 self.GroupFlagsChanged(0, 0)
  65                 self.MembersChanged(
  66                         '', [self._conn.GetSelfHandle()], [], [], [contactHandle],
  67                         0, telepathy.CHANNEL_GROUP_CHANGE_REASON_NONE
  68                 )
  69
  70         def initial_audio(self):
  71                 return False
  72
  73         def initial_video(self):
  74                 return False
  75
  76         @gtk_toolbox.log_exception(_moduleLogger)
  77         def Close(self):
  78                 self.close()
  79
  80         def close(self):
  81                 _moduleLogger.debug("Closing call")
  82                 tp.ChannelTypeStreamedMedia.Close(self)
  83                 self.remove_from_connection()
  84                 if self.__cancelId is not None:
  85                         gobject.source_remove(self.__cancelId)
  86                         self.__cancelId = None
  87
  88         @gtk_toolbox.log_exception(_moduleLogger)
  89         def GetLocalPendingMembersWithInfo(self):
  90                 return []
  91
  92         @gtk_toolbox.log_exception(_moduleLogger)
  93         def ListStreams(self):
  94                 """
  95                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
  96                 """
  97                 return ()
  98
  99         @gtk_toolbox.log_exception(_moduleLogger)
 100         def RemoveStreams(self, streams):
 101                 """
 102                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 103                 """
 104                 raise telepathy.errors.NotImplemented("Cannot remove a stream")
 105
 106         @gtk_toolbox.log_exception(_moduleLogger)
 107         def RequestStreamDirection(self, stream, streamDirection):
 108                 """
 109                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 110
 111                 @note Since streams are short lived, not bothering to implement this
 112                 """
 113                 _moduleLogger.info("A request was made to change the stream direction")
 114                 raise telepathy.errors.NotImplemented("Cannot change directions")
 115
 116         @gtk_toolbox.log_exception(_moduleLogger)
 117         def RequestStreams(self, contactId, streamTypes):
 118                 """
 119                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 120
 121                 @returns [(Stream ID, contact, stream type, stream state, stream direction, pending send flags)]
 122                 """
 123                 contact = self._conn.get_handle_by_id(telepathy.constants.HANDLE_TYPE_CONTACT, contactId)
 124                 assert self.__contactHandle == contact, "%r != %r" % (self.__contactHandle, contact)
 125                 contactNumber = contact.phoneNumber
 126
 127                 self.CallStateChanged(self.__contactHandle, telepathy.constants.CHANNEL_CALL_STATE_RINGING)
 128                 self.__cancelId = gobject.idle_add(self._on_cancel)
 129                 self._conn.session.backend.call(contactNumber)
 130
 131                 streamId = 0
 132                 streamState = telepathy.constants.MEDIA_STREAM_STATE_DISCONNECTED
 133                 streamDirection = telepathy.constants.MEDIA_STREAM_DIRECTION_BIDIRECTIONAL
 134                 pendingSendFlags = telepathy.constants.MEDIA_STREAM_PENDING_REMOTE_SEND
 135                 return [(streamId, contact, streamTypes[0], streamState, streamDirection, pendingSendFlags)]
 136
 137         @gtk_toolbox.log_exception(_moduleLogger)
 138         def GetCallStates(self):
 139                 """
 140                 For org.freedesktop.Telepathy.Channel.Interface.CallState
 141
 142                 Get the current call states for all contacts involved in this call.
 143                 @returns {Contact: telepathy.constants.CHANNEL_CALL_STATE_*}
 144                 """
 145                 return {self.__contactHandle: telepathy.constants.CHANNEL_CALL_STATE_FORWARDED}
 146
 147         @gtk_toolbox.log_exception(_moduleLogger)
 148         def _on_cancel(self, *args):
 149                 self.CallStateChanged(self.__contactHandle, telepathy.constants.CHANNEL_CALL_STATE_FORWARDED)
 150                 self.close()
 151                 self.__cancelId = None
 152                 return False