Source for java.awt.event.WindowFocusListener

   1: /* WindowFocusListener.java -- listens for window focus events
   2:    Copyright (C) 2002, 2005  Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
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  36: exception statement from your version. */
  37: 
  38: 
  39: package java.awt.event;
  40: 
  41: import java.util.EventListener;
  42: 
  43: /**
  44:  * This interface is for classes that wish to monitor events for window
  45:  * focus changes. To watch a subset of these events, use a WindowAdapter.
  46:  *
  47:  * @author Eric Blake (ebb9@email.byu.edu)
  48:  * @see WindowAdapter
  49:  * @see WindowEvent
  50:  * @since 1.4
  51:  * @status updated to 1.4
  52:  */
  53: public interface WindowFocusListener extends EventListener
  54: {
  55:   /**
  56:    * This method is called when a window gains focus.
  57:    *
  58:    * @param event the <code>WindowEvent</code> indicating the focus change
  59:    */
  60:   void windowGainedFocus(WindowEvent event);
  61: 
  62:   /**
  63:    * This method is called when a window loses focus.
  64:    *
  65:    * @param event the <code>WindowEvent</code> indicating the focus change
  66:    */
  67:   void windowLostFocus(WindowEvent event);
  68: } // interface WindowFocusListener