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.ade.postupload.client.ui; 029 030import com.google.gwt.user.client.ui.FlowPanel; 031 032/** 033 * Allows using an 'a' element as a GWT panel. 034 */ 035public class CmsPreviewLink extends FlowPanel { 036 037 /** 038 * Creates a new instance. 039 */ 040 public CmsPreviewLink() { 041 042 super("a"); 043 } 044 045 /** 046 * Sets the link URL. 047 * 048 * @param href the link URL 049 */ 050 public void setHref(String href) { 051 052 setAttr("href", href); 053 } 054 055 /** 056 * Sets the 'target' attribute of the link. 057 * 058 * @param target the new value for the 'target' attribute 059 */ 060 public void setTarget(String target) { 061 062 setAttr("target", target); 063 } 064 065 /** 066 * Helper method for setting/clearing an element attribute. 067 * 068 * <p>If the given value is null, the attribute is cleared, otherwise it is set to that value. 069 * 070 * @param name the attribute name 071 * @param value the attribute value 072 */ 073 private void setAttr(String name, String value) { 074 075 if (value != null) { 076 getElement().setAttribute(name, value); 077 } else { 078 getElement().removeAttribute(name); 079 } 080 } 081 082}