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

   1 import logging
   2 import weakref
   3
   4 import telepathy
   5
   6
   7 _moduleLogger = logging.getLogger("handle")
   8
   9
  10 class TheOneRingHandle(telepathy.server.Handle):
  11         """
  12         Instances are memoized
  13         """
  14
  15         def __init__(self, connection, id, handleType, name):
  16                 telepathy.server.Handle.__init__(self, id, handleType, name)
  17                 self._conn = weakref.proxy(connection)
  18
  19         def __repr__(self):
  20                 return "<%s id=%u name='%s'>" % (
  21                         type(self).__name__, self.id, self.name
  22                 )
  23
  24         id = property(telepathy.server.Handle.get_id)
  25         type = property(telepathy.server.Handle.get_type)
  26         name = property(telepathy.server.Handle.get_name)
  27
  28
  29 class ConnectionHandle(TheOneRingHandle):
  30
  31         def __init__(self, connection, id):
  32                 handleType = telepathy.HANDLE_TYPE_CONTACT
  33                 handleName = connection.username
  34                 TheOneRingHandle.__init__(self, connection, id, handleType, handleName)
  35
  36                 self.profile = connection.username
  37
  38
  39 class ContactHandle(TheOneRingHandle):
  40
  41         def __init__(self, connection, id, contactId):
  42                 handleType = telepathy.HANDLE_TYPE_CONTACT
  43                 handleName = contactId
  44                 TheOneRingHandle.__init__(self, connection, id, handleType, handleName)
  45
  46                 self._contactId = contactId
  47
  48         @property
  49         def contactID(self):
  50                 return self._contactId
  51
  52         @property
  53         def contactDetails(self):
  54                 return self._conn.addressbook.get_contact_details(self._id)
  55
  56
  57 class ListHandle(TheOneRingHandle):
  58
  59         def __init__(self, connection, id, listName):
  60                 handleType = telepathy.HANDLE_TYPE_LIST
  61                 handleName = listName
  62                 TheOneRingHandle.__init__(self, connection, id, handleType, handleName)
  63
  64
  65 _HANDLE_TYPE_MAPPING = {
  66         'connection': ConnectionHandle,
  67         'contact': ContactHandle,
  68         'list': ListHandle,
  69 }
  70
  71
  72 def create_handle_factory():
  73
  74         cache = weakref.WeakValueDictionary()
  75
  76         def create_handle(connection, type, *args):
  77                 Handle = _HANDLE_TYPE_MAPPING[type]
  78                 key = Handle, connection.username, args
  79                 try:
  80                         handle = cache[key]
  81                         isNewHandle = False
  82                 except KeyError:
  83                         # The misnamed get_handle_id requests a new handle id
  84                         handle = Handle(connection, connection.get_handle_id(), *args)
  85                         cache[key] = handle
  86                         isNewHandle = True
  87                 connection._handles[handle.get_type(), handle.get_id()] = handle
  88                 handleStatus = "Is New!" if isNewHandle else "From Cache"
  89                 _moduleLogger.info("Created Handle: %r (%s)" % (handle, handleStatus))
  90                 return handle
  91
  92         return create_handle
  93
  94
  95 create_handle = create_handle_factory()