git.maemo.org Git - theonering/blob - src/capabilities.py

   1 import logging
   2
   3 import telepathy
   4
   5 import gtk_toolbox
   6
   7
   8 _moduleLogger = logging.getLogger('capabilities')
   9
  10
  11 class CapabilitiesMixin(telepathy.server.ConnectionInterfaceCapabilities):
  12
  13         def __init__(self):
  14                 telepathy.server.ConnectionInterfaceCapabilities.__init__(self)
  15                 self._implement_property_get(
  16                         telepathy.interfaces.CONN_INTERFACE_CAPABILITIES,
  17                         {"caps": self.GetCapabilities},
  18                 )
  19
  20         @property
  21         def session(self):
  22                 """
  23                 @abstract
  24                 """
  25                 raise NotImplementedError("Abstract property called")
  26
  27         @property
  28         def handle(self):
  29                 """
  30                 @abstract
  31                 """
  32                 raise NotImplementedError("Abstract property called")
  33
  34         @gtk_toolbox.log_exception(_moduleLogger)
  35         def GetCapabilities(self, handles):
  36                 """
  37                 @todo HACK Remove this once we are building against a fixed version of python-telepathy
  38                 """
  39                 ret = []
  40                 for handle in handles:
  41                         if handle != 0 and (telepathy.HANDLE_TYPE_CONTACT, handle) not in self._handles:
  42                                 raise telepathy.errors.InvalidHandle
  43                         elif handle in self._caps:
  44                                 theirs = self._caps[handle]
  45                                 for type in theirs:
  46                                         ret.append([handle, type, theirs[0], theirs[1]])
  47                 _moduleLogger.info("GetCaps %r" % ret)
  48                 return ret
  49
  50         @gtk_toolbox.log_exception(_moduleLogger)
  51         def AdvertiseCapabilities(self, add, remove):
  52                 """
  53                 @todo HACK Remove this once we are building against a fixed version of python-telepathy
  54                 """
  55                 my_caps = self._caps.setdefault(self._self_handle, {})
  56
  57                 changed = {}
  58                 for ctype, spec_caps in add:
  59                         changed[ctype] = spec_caps
  60                 for ctype in remove:
  61                         changed[ctype] = None
  62
  63                 caps = []
  64                 for ctype, spec_caps in changed.iteritems():
  65                         gen_old, spec_old = my_caps.get(ctype, (0, 0))
  66                         if spec_caps is None:
  67                                 # channel type no longer supported (provider has gone away)
  68                                 gen_new, spec_new = 0, 0
  69                         else:
  70                                 # channel type supports new capabilities
  71                                 gen_new, spec_new = gen_old, spec_old | spec_caps
  72                         if spec_old != spec_new or gen_old != gen_new:
  73                                 caps.append((self._self_handle, ctype, gen_old, gen_new,
  74                                                         spec_old, spec_new))
  75
  76                 _moduleLogger.info("CapsChanged %r" % caps)
  77                 self.CapabilitiesChanged(caps)
  78
  79                 # return all my capabilities
  80                 ret = [(ctype, caps[1]) for ctype, caps in my_caps.iteritems()]
  81                 _moduleLogger.info("Adv %r" % ret)
  82                 return ret