001/* 002 * This library is part of OpenCms - 003 * the Open Source Content Management System 004 * 005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com) 006 * 007 * This library is free software; you can redistribute it and/or 008 * modify it under the terms of the GNU Lesser General Public 009 * License as published by the Free Software Foundation; either 010 * version 2.1 of the License, or (at your option) any later version. 011 * 012 * This library is distributed in the hope that it will be useful, 013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 015 * Lesser General Public License for more details. 016 * 017 * For further information about Alkacon Software, please see the 018 * company website: http://www.alkacon.com 019 * 020 * For further information about OpenCms, please see the 021 * project website: http://www.opencms.org 022 * 023 * You should have received a copy of the GNU Lesser General Public 024 * License along with this library; if not, write to the Free Software 025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 026 */ 027 028package org.opencms.gwt.client.ui.history; 029 030import org.opencms.gwt.shared.CmsHistoryResourceBean; 031 032/** 033 * Interface for classes which implement the actions that can be triggered from the history dialog.<p> 034 * 035 */ 036public interface I_CmsHistoryActionHandler { 037 038 /** 039 * Reverts a resource to a given historical state.<p> 040 * 041 * @param historyRes the historical resource to which the resource should be reverted 042 */ 043 void revert(CmsHistoryResourceBean historyRes); 044 045 /** 046 * Sets the action which should be executed after reverting the resource.<p> 047 * 048 * @param action the action 049 */ 050 void setPostRevertAction(Runnable action); 051 052 /** 053 * Show the preview for a given historical resource.<p> 054 * 055 * @param historyRes the history resource 056 */ 057 void showPreview(CmsHistoryResourceBean historyRes); 058 059}