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# vim:set et sts=4 sw=4:
#
# ibus - The Input Bus
#
# Copyright (c) 2007-2010 Peng Huang <shawn.p.huang@gmail.com>
# Copyright (c) 2007-2010 Red Hat, Inc.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place, Suite 330,
# Boston, MA 02111-1307 USA
__all__ = (
"Serializable",
"serialize_object",
"deserialize_object",
)
from object import Object
import dbus
import gobject
__serializable_name_dict = dict()
def serializable_register(classobj):
# if not issubclass(classobj, Serializable):
# raise "%s is not a sub-class of Serializable" % str(classobj)
__serializable_name_dict[classobj.__NAME__] = classobj
def serialize_object(o):
if isinstance(o, Serializable):
l = [o.__NAME__]
o.serialize(l)
return dbus.Struct(l)
else:
return o
def deserialize_object(v):
if isinstance(v, tuple):
struct = list(v)
type_name = struct.pop(0)
type_class = __serializable_name_dict[type_name]
o = type_class()
o.deserialize (struct)
return o
return v
class SerializableMeta(gobject.GObjectMeta):
def __init__(cls, name, bases, dict_):
super(SerializableMeta, cls).__init__(name, bases, dict_)
if "__NAME__" in cls.__dict__:
serializable_register(cls)
class Serializable(Object):
__metaclass__ = SerializableMeta
__gtype_name__ = "PYIBusSerializable"
__NAME__ = "IBusSerializable"
def __init__(self):
super(Serializable, self).__init__()
self.__attachments = dict()
def set_attachment(self, name, value):
self.__attachments[name] = value
def get_attachment(self, name):
return self.__attachments.get(name, None)
def serialize(self, struct):
d = dbus.Dictionary(signature="sv")
for k, v in self.__attachments.items():
d[k] = serialize_object(v)
struct.append(d)
def deserialize(self, struct):
d = struct.pop(0)
self.__attachments = dict()
for k, v in d.items():
self.__attachments[k] = deserialize_object(v)
def do_destroy(self):
self.__attachments = None
super(Serializable, self).do_destroy()
__serializable_name_dict["IBusSerializable"] = Serializable
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