28 lines
998 B
Python
28 lines
998 B
Python
# Copyright (C) 2006, 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 library; if not, write to the
|
|
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
# Boston, MA 02111-1307, USA.
|
|
|
|
class AbstractModel:
|
|
def __init__(self):
|
|
self._listeners = []
|
|
|
|
def add_listener(self, listener):
|
|
self._listeners.append(listener)
|
|
|
|
def _notify_model_change(self, key):
|
|
for listener in self._listeners:
|
|
listener(self, key)
|