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# Copyright (C) 2009, Tutorius.org
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
from ..actions import *
class ChainAction(Action):
actions = TAddonListProperty()
"""Utility class to allow executing actions in a specific order"""
def __init__(self, actions=[]):
"""ChainAction(action1, ... ) builds a chain of actions"""
Action.__init__(self)
self.actions = actions
def do(self,**kwargs):
"""do() each action in the chain"""
for act in self.actions:
act.do(**kwargs)
def undo(self):
"""undo() each action in the chain, starting with the last"""
for act in reversed(self.actions):
act.undo()
__action__ = {
'name': 'ChainAction',
'display_name' : 'Chain of actions',
'icon' : 'chain',
'class' : ChainAction,
'mandatory_props' : ['actions'],
'test' : True
}
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