/* WindowFocusListener.java -- listens for window focus events
   Copyright (C) 2002, 2005  Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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General Public License for more details.

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02111-1307 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
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As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
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terms of your choice, provided that you also meet, for each linked
independent module, the terms and conditions of the license of that
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this exception to your version of the library, but you are not
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package java.awt.event;

import java.util.EventListener;

/**
 * This interface is for classes that wish to monitor events for window
 * focus changes. To watch a subset of these events, use a WindowAdapter.
 *
 * @author Eric Blake (ebb9@email.byu.edu)
 * @see WindowAdapter
 * @see WindowEvent
 * @since 1.4
 * @status updated to 1.4
 */
public interface WindowFocusListener extends EventListener
{
  /**
   * This method is called when a window gains focus.
   *
   * @param event the <code>WindowEvent</code> indicating the focus change
   */
  void windowGainedFocus(WindowEvent event);

  /**
   * This method is called when a window loses focus.
   *
   * @param event the <code>WindowEvent</code> indicating the focus change
   */
  void windowLostFocus(WindowEvent event);
} // interface WindowFocusListener