Source code for pyface.undo.action.undo_action
# (C) Copyright 2007-2023 Enthought, Inc., Austin, TX
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# license included in LICENSE.txt and may be redistributed only under
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#
# Thanks for using Enthought open source!
# ------------------------------------------------------------------------------
# Copyright (c) 2007, Riverbank Computing Limited
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
# Thanks for using Enthought open source!
#
# Author: Riverbank Computing Limited
# Description: <Enthought undo package component>
# ------------------------------------------------------------------------------
# Local imports.
from .abstract_command_stack_action import AbstractCommandStackAction
[docs]class UndoAction(AbstractCommandStackAction):
""" An action that undos the last command of the active command stack. """
###########################################################################
# 'Action' interface.
###########################################################################
###########################################################################
# 'AbstractUndoAction' interface.
###########################################################################
def _update_action(self):
""" Update the state of the action. """
name = self.undo_manager.undo_name
if name:
name = "&Undo " + name
self.enabled = True
else:
name = "&Undo"
self.enabled = False
self.name = name