/** * Copyright 2005 Bushe Enterprises, Inc., Hopkinton, MA, USA, www.bushe.com * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.bushe.swing.action; /** * Interface that allows delegation of the EnabledUpdater interface. * <p> * An action that implements this interface typically calls shouldBeEnabled() on * all it's delegates. If they any return true, it enables itself. * @author Michael Bushe * @todo this interface could be made stonger with AND/OR semantics, like: * "if just one says it should be enabled, enable" or * "if just one says it should be disabled, disable" * "if this one says it should be disbaled, then disable no matter what the * others say" */ public interface DelegatesEnabled { public void addShouldBeEnabledDelegate(ShouldBeEnabledDelegate shouldBeEnabledDelegate); public void removeShouldBeEnabledDelegate(ShouldBeEnabledDelegate shouldBeEnabledDelegate); }