/* * SmartGWT (GWT for SmartClient) * Copyright 2008 and beyond, Isomorphic Software, Inc. * * SmartGWT is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License version 3 * as published by the Free Software Foundation. SmartGWT is also * available under typical commercial license terms - see * http://smartclient.com/license * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. */ package com.smartgwt.client.widgets.grid.events; import com.smartgwt.client.event.*; import com.google.gwt.event.shared.HandlerRegistration; import com.google.gwt.event.shared.HasHandlers; public interface HasHeaderClickHandlers extends HasHandlers { /** * Handler fired when the user clicks a header in this listGrid before any other processing occurs. Return false to suppress the default header click handling * * @param handler the onHeaderClick handler * @return {@link HandlerRegistration} used to remove this handler */ HandlerRegistration addHeaderClickHandler(HeaderClickHandler handler); }