git.maemo.org Git - theonering/blob - src/tp/properties.py

   1 # telepathy-python - Base classes defining the interfaces of the Telepathy framework
   2 #
   3 # Copyright (C) 2005, 2006, 2008 Collabora Limited
   4 # Copyright (C) 2005, 2006 Nokia Corporation
   5 # Copyright (C) 2008 Olivier Le Thanh Duong <olivier@lethanh.be>
   6 #
   7 # This library is free software; you can redistribute it and/or
   8 # modify it under the terms of the GNU Lesser General Public
   9 # License as published by the Free Software Foundation; either
  10 # version 2.1 of the License, or (at your option) any later version.
  11 #
  12 # This library is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 # Lesser General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU Lesser General Public
  18 # License along with this library; if not, write to the Free Software
  19 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20
  21 import dbus
  22 import dbus.service
  23
  24 from telepathy.interfaces import PROPERTIES_INTERFACE
  25 import telepathy.errors
  26
  27 from telepathy._generated.Properties_Interface import PropertiesInterface
  28
  29 class DBusProperties(dbus.service.Interface):
  30     def __init__(self):
  31         if not getattr(self, '_interfaces', None):
  32             self._interfaces = set()
  33
  34         self._interfaces.add(dbus.PROPERTIES_IFACE)
  35
  36         if not getattr(self, '_prop_getters', None):
  37             self._prop_getters = {}
  38             self._prop_setters = {}
  39
  40     def _implement_property_get(self, iface, dict):
  41         self._prop_getters.setdefault(iface, {}).update(dict)
  42
  43     def _implement_property_set(self, iface, dict):
  44         self._prop_setters.setdefault(iface, {}).update(dict)
  45
  46     @dbus.service.method(dbus_interface=dbus.PROPERTIES_IFACE, in_signature='ss', out_signature='v')
  47     def Get(self, interface_name, property_name):
  48         if interface_name in self._prop_getters \
  49             and property_name in self._prop_getters[interface_name]:
  50                 return self._prop_getters[interface_name][property_name]()
  51         else:
  52             raise telepathy.errors.InvalidArgument()
  53
  54     @dbus.service.method(dbus_interface=dbus.PROPERTIES_IFACE, in_signature='ssv', out_signature='')
  55     def Set(self, interface_name, property_name, value):
  56         if interface_name in self._prop_setters \
  57             and property_name in self._prop_setters[interface_name]:
  58                 self._prop_setters[interface_name][property_name](value)
  59         else:
  60             raise telepathy.errors.PermissionDenied()
  61
  62     @dbus.service.method(dbus_interface=dbus.PROPERTIES_IFACE, in_signature='s', out_signature='a{sv}')
  63     def GetAll(self, interface_name):
  64         if interface_name in self._prop_getters:
  65             r = {}
  66             for k, v in self._prop_getters[interface_name].items():
  67                 r[k] = v()
  68             return r
  69         else:
  70             raise telepathy.errors.InvalidArgument()