/******************************************************************************* * Copyright (c) 2000, 2003 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.events;import org.eclipse.swt.internal.SWTEventListener;/** * Classes which implement this interface provide methods * that deal with the events that are generated as controls * gain and lose focus. * <p> * After creating an instance of a class that implements * this interface it can be added to a control using the * <code>addFocusListener</code> method and removed using * the <code>removeFocusListener</code> method. When a * control gains or loses focus, the appropriate method * will be invoked. * </p> * * @see FocusAdapter * @see FocusEvent */public interface FocusListener extends SWTEventListener {/** * Sent when a control gets focus. * * @param e an event containing information about the focus change */public void focusGained(FocusEvent e);/** * Sent when a control loses focus. * * @param e an event containing information about the focus change */public void focusLost(FocusEvent e);}