001/* 002 * (C) Copyright 2006-2008 Nuxeo SAS (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Alexandre Russel 016 * 017 * $Id$ 018 */ 019 020package org.nuxeo.ecm.platform.annotations.gwt.client.util; 021 022import com.google.gwt.dom.client.Element; 023 024/** 025 * @author Alexandre Russel 026 */ 027public class CSSClassManager { 028 private Element element; 029 030 public CSSClassManager(Element element) { 031 this.element = element; 032 } 033 034 /** 035 * remove the class from the specified element. 036 * 037 * @return true if the class was removed, false if the class was not found. 038 */ 039 public boolean removeClass(String name) { 040 String className = element.getClassName(); 041 if (isClassPresent(name)) { 042 element.setClassName(className.replaceAll("\\b" + name + "\\b\\s*", "")); 043 return true; 044 } 045 return false; 046 } 047 048 public boolean isClassPresent(String name) { 049 String cssClass = element.getClassName(); 050 if (cssClass == null) { 051 return false; 052 } 053 return cssClass.matches(".*\\b" + name + "\\b.*"); 054 } 055 056 /** 057 * Add the class to the element. 058 * 059 * @return true if the class was add, false if the class was already present. 060 */ 061 public boolean addClass(String name) { 062 String className = element.getClassName(); 063 if (!isClassPresent(name)) { 064 element.setClassName(className + " " + name); 065 return true; 066 } 067 return false; 068 } 069}