/******************************************************************************* * Copyright (c) 2003, 2004 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Common Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/cpl-v10.html *  * Contributors: *     IBM Corporation - initial API and implementation *******************************************************************************/package org.eclipse.swt.browser;import org.eclipse.swt.internal.SWTEventListener;/** * This listener interface may be implemented in order to receive * a {@link LocationEvent} notification when a {@link Browser} * navigates to a different URL. *  * @see Browser#addLocationListener(LocationListener) * @see Browser#removeLocationListener(LocationListener) *  * @since 3.0 */public interface LocationListener extends SWTEventListener {/** * This method is called when the current location is about to be changed. * <p> * * <p>The following fields in the <code>LocationEvent</code> apply: * <ul> * <li>(in) location the location to be loaded * <li>(in) widget the <code>Browser</code> whose location is changing * <li>(in/out) doit can be set to <code>false</code> to prevent the location * from being loaded  * </ul> *  * @param event the <code>LocationEvent</code> that specifies the location * to be loaded by a <code>Browser</code> *  * @since 3.0 */ public void changing(LocationEvent event);/** * This method is called when the current location is changed. * <p> * * <p>The following fields in the <code>LocationEvent</code> apply: * <ul> * <li>(in) location the current location * <li>(in) top <code>true</code> if the location opens in the top frame or * <code>false</code> otherwise * <li>(in) widget the <code>Browser</code> whose location has changed * </ul> *  * @param event the <code>LocationEvent</code> that specifies  the new * location of a <code>Browser</code> *  * @since 3.0 */ public void changed(LocationEvent event);}