1 /*
   2  * Copyright (c) 2009, 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 sun.awt.windows;
  27 
  28 import java.awt.KeyboardFocusManager;
  29 import java.awt.Window;
  30 import java.awt.Component;
  31 import java.awt.peer.ComponentPeer;
  32 import sun.awt.KeyboardFocusManagerPeerImpl;
  33 import sun.awt.CausedFocusEvent;
  34 
  35 class WKeyboardFocusManagerPeer extends KeyboardFocusManagerPeerImpl {
  36     static native void setNativeFocusOwner(ComponentPeer peer);
  37     static native Component getNativeFocusOwner();
  38     static native Window getNativeFocusedWindow();
  39 
  40     WKeyboardFocusManagerPeer(KeyboardFocusManager manager) {
  41         super(manager);
  42     }
  43 
  44     @Override
  45     public void setCurrentFocusOwner(Component comp) {
  46         setNativeFocusOwner(comp != null ? comp.getPeer() : null);
  47     }
  48 
  49     @Override
  50     public Component getCurrentFocusOwner() {
  51         return getNativeFocusOwner();
  52     }
  53 
  54     @Override
  55     public Window getCurrentFocusedWindow() {
  56         return getNativeFocusedWindow();
  57     }
  58 
  59     public static boolean deliverFocus(Component lightweightChild,
  60                                        Component target,
  61                                        boolean temporary,
  62                                        boolean focusedWindowChangeAllowed,
  63                                        long time,
  64                                        CausedFocusEvent.Cause cause)
  65     {
  66         // TODO: do something to eliminate this forwarding
  67         return KeyboardFocusManagerPeerImpl.deliverFocus(lightweightChild,
  68                                                          target,
  69                                                          temporary,
  70                                                          focusedWindowChangeAllowed,
  71                                                          time,
  72                                                          cause,
  73                                                          getNativeFocusOwner());
  74     }
  75 }