001/*
002 * Copyright 2010-2015 Institut Pasteur.
003 * 
004 * This file is part of Icy.
005 * 
006 * Icy is free software: you can redistribute it and/or modify
007 * it under the terms of the GNU General Public License as published by
008 * the Free Software Foundation, either version 3 of the License, or
009 * (at your option) any later version.
010 * 
011 * Icy is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
014 * GNU General Public License for more details.
015 * 
016 * You should have received a copy of the GNU General Public License
017 * along with Icy. If not, see <http://www.gnu.org/licenses/>.
018 */
019package icy.common.listener;
020
021import java.util.EventListener;
022
023/**
024 * Basic accept callback.<br>
025 * The listener can refuse action from source by returning false.<br>
026 * <br>
027 * For instance it can be used to prevent main frame from being closed :
028 * 
029 * <pre>
030 * public boolean accept(Object source)
031 * {
032 *     if (active)
033 *         return ConfirmDialog.confirm(&quot;Do you want to interrupt the process ?&quot;);
034 * 
035 *     return true;
036 * }
037 * </pre>
038 * 
039 * @author Stephane
040 */
041public interface AcceptListener extends EventListener
042{
043    public boolean accept(Object source);
044}