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
  20         def __init__(self, connection, manager, props, contactHandle):
  21                 self.__manager = manager
  22                 self.__props = props
  23                 self.__cancelId = None
  24
  25                 if telepathy.interfaces.CHANNEL_INTERFACE + '.InitiatorHandle' in props:
  26                         self._initiator = connection.get_handle_by_id(
  27                                 telepathy.HANDLE_TYPE_CONTACT,
  28                                 props[telepathy.interfaces.CHANNEL_INTERFACE + '.InitiatorHandle'],
  29                         )
  30                 elif telepathy.interfaces.CHANNEL_INTERFACE + '.InitiatorID' in props:
  31                         self._initiator = connection.get_handle_by_name(
  32                                 telepathy.HANDLE_TYPE_CONTACT,
  33                                 props[telepathy.interfaces.CHANNEL_INTERFACE + '.InitiatorHandle'],
  34                         )
  35                 else:
  36                         # Maemo 5 seems to require InitiatorHandle/InitiatorID to be set
  37                         # even though I can't find them in the dbus spec.  I think its
  38                         # generally safe to assume that its locally initiated if not
  39                         # specified.  Specially for The One Ring, its always locally
  40                         # initiated
  41                         _moduleLogger.warning('InitiatorID or InitiatorHandle not set on new channel, assuming locally initiated')
  42                         self._initiator = connection.GetSelfHandle()
  43
  44                 tp.ChannelTypeStreamedMedia.__init__(self, connection, manager, props)
  45                 tp.ChannelInterfaceCallState.__init__(self)
  46                 tp.ChannelInterfaceGroup.__init__(self)
  47                 self.__contactHandle = contactHandle
  48                 self._implement_property_get(
  49                         telepathy.interfaces.CHANNEL_TYPE_STREAMED_MEDIA,
  50                         {
  51                                 "InitialAudio": self.initial_audio,
  52                                 "InitialVideo": self.initial_video,
  53                         },
  54                 )
  55                 self._add_immutables({
  56                         'InitialAudio': telepathy.interfaces.CHANNEL_TYPE_STREAMED_MEDIA,
  57                         'InitialVideo': telepathy.interfaces.CHANNEL_TYPE_STREAMED_MEDIA,
  58                 })
  59                 self._implement_property_get(
  60                         telepathy.interfaces.CHANNEL_INTERFACE,
  61                         {
  62                                 'InitiatorHandle': lambda: dbus.UInt32(self._initiator.id),
  63                                 'InitiatorID': lambda: self._initiator.name,
  64                         },
  65                 )
  66                 self._add_immutables({
  67                         'InitiatorHandle': telepathy.interfaces.CHANNEL_INTERFACE,
  68                         'InitiatorID': telepathy.interfaces.CHANNEL_INTERFACE,
  69                 })
  70
  71                 self.GroupFlagsChanged(0, 0)
  72                 self.MembersChanged(
  73                         '', [self._conn.GetSelfHandle()], [], [], [contactHandle],
  74                         0, telepathy.CHANNEL_GROUP_CHANGE_REASON_NONE
  75                 )
  76
  77         def initial_audio(self):
  78                 return False
  79
  80         def initial_video(self):
  81                 return False
  82
  83         @gtk_toolbox.log_exception(_moduleLogger)
  84         def Close(self):
  85                 self.close()
  86
  87         def close(self):
  88                 _moduleLogger.debug("Closing call")
  89                 tp.ChannelTypeStreamedMedia.Close(self)
  90                 self.remove_from_connection()
  91                 if self.__cancelId is not None:
  92                         gobject.source_remove(self.__cancelId)
  93                         self.__cancelId = None
  94
  95         @gtk_toolbox.log_exception(_moduleLogger)
  96         def GetLocalPendingMembersWithInfo(self):
  97                 return []
  98
  99         @gtk_toolbox.log_exception(_moduleLogger)
 100         def ListStreams(self):
 101                 """
 102                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 103                 """
 104                 return ()
 105
 106         @gtk_toolbox.log_exception(_moduleLogger)
 107         def RemoveStreams(self, streams):
 108                 """
 109                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 110                 """
 111                 raise telepathy.errors.NotImplemented("Cannot remove a stream")
 112
 113         @gtk_toolbox.log_exception(_moduleLogger)
 114         def RequestStreamDirection(self, stream, streamDirection):
 115                 """
 116                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 117
 118                 @note Since streams are short lived, not bothering to implement this
 119                 """
 120                 _moduleLogger.info("A request was made to change the stream direction")
 121                 raise telepathy.errors.NotImplemented("Cannot change directions")
 122
 123         @gtk_toolbox.log_exception(_moduleLogger)
 124         def RequestStreams(self, contactId, streamTypes):
 125                 """
 126                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 127
 128                 @returns [(Stream ID, contact, stream type, stream state, stream direction, pending send flags)]
 129                 """
 130                 contact = self._conn.get_handle_by_id(telepathy.constants.HANDLE_TYPE_CONTACT, contactId)
 131                 assert self.__contactHandle == contact, "%r != %r" % (self.__contactHandle, contact)
 132                 contactNumber = contact.phoneNumber
 133
 134                 self.CallStateChanged(self.__contactHandle, telepathy.constants.CHANNEL_CALL_STATE_RINGING)
 135                 self.__cancelId = gobject.idle_add(self._on_cancel)
 136                 self._conn.session.backend.call(contactNumber)
 137
 138                 streamId = 0
 139                 streamState = telepathy.constants.MEDIA_STREAM_STATE_DISCONNECTED
 140                 streamDirection = telepathy.constants.MEDIA_STREAM_DIRECTION_BIDIRECTIONAL
 141                 pendingSendFlags = telepathy.constants.MEDIA_STREAM_PENDING_REMOTE_SEND
 142                 return [(streamId, contact, streamTypes[0], streamState, streamDirection, pendingSendFlags)]
 143
 144         @gtk_toolbox.log_exception(_moduleLogger)
 145         def GetCallStates(self):
 146                 """
 147                 For org.freedesktop.Telepathy.Channel.Interface.CallState
 148
 149                 Get the current call states for all contacts involved in this call.
 150                 @returns {Contact: telepathy.constants.CHANNEL_CALL_STATE_*}
 151                 """
 152                 return {self.__contactHandle: telepathy.constants.CHANNEL_CALL_STATE_FORWARDED}
 153
 154         @gtk_toolbox.log_exception(_moduleLogger)
 155         def _on_cancel(self, *args):
 156                 self.CallStateChanged(self.__contactHandle, telepathy.constants.CHANNEL_CALL_STATE_FORWARDED)
 157                 self.close()
 158                 self.__cancelId = None
 159                 return False