1 /*
   2  * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.awt.peer;
  27 
  28 import java.awt.Component;
  29 import java.awt.Window;
  30 
  31 /**
  32  * The native peer interface for {@link KeyboardFocusManager}.
  33  */
  34 public interface KeyboardFocusManagerPeer {
  35 
  36     /**
  37      * Returns the currently focused window.
  38      *
  39      * @return the currently focused window
  40      *
  41      * @see KeyboardFocusManager#getNativeFocusedWindow()
  42      */
  43     Window getCurrentFocusedWindow();
  44 
  45     /**
  46      * Sets the component that should become the focus owner.
  47      *
  48      * @param comp the component to become the focus owner
  49      *
  50      * @see KeyboardFocusManager#setNativeFocusOwner(Component)
  51      */
  52     void setCurrentFocusOwner(Component comp);
  53 
  54     /**
  55      * Returns the component that currently owns the input focus.
  56      *
  57      * @return the component that currently owns the input focus
  58      *
  59      * @see KeyboardFocusManager#getNativeFocusOwner()
  60      */
  61     Component getCurrentFocusOwner();
  62 
  63     /**
  64      * Clears the current global focus owner.
  65      *
  66      * @param activeWindow
  67      *
  68      * @see KeyboardFocusManager#clearGlobalFocusOwner()
  69      */
  70     void clearGlobalFocusOwner(Window activeWindow);
  71 
  72 }