Java tutorial
/* * Copyright (C) 2008-2011 by Simon Hefti. All rights reserved. * Licensed under the EPL 1.0 (Eclipse Public License). * (see http://www.eclipse.org/legal/epl-v10.html) * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. * * Initial Developer: Simon Hefti */ package ch.heftix.mailxel.client; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.user.client.ui.CheckBox; public class CheckBoxWChangeDetection extends CheckBox { private boolean isDirty = false; public CheckBoxWChangeDetection() { super(); addClickHandler(new ClickHandler() { public void onClick(ClickEvent sender) { isDirty = true; } }); } public void setDirty() { isDirty = true; } public boolean isDirty() { return isDirty; } }