1 /*
2 * Copyright (c) 2003, 2008, 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 package sun.awt.X11;
26
27 import java.awt.Component;
28 import java.awt.Window;
29 import sun.util.logging.PlatformLogger;
30 import sun.awt.CausedFocusEvent;
31 import sun.awt.KeyboardFocusManagerPeerImpl;
32
33 public class XKeyboardFocusManagerPeer extends KeyboardFocusManagerPeerImpl {
34 private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.awt.X11.focus.XKeyboardFocusManagerPeer");
35 private static final XKeyboardFocusManagerPeer inst = new XKeyboardFocusManagerPeer();
36
37 private Component currentFocusOwner;
38 private Window currentFocusedWindow;
39
40 public static XKeyboardFocusManagerPeer getInstance() {
41 return inst;
42 }
43
44 private XKeyboardFocusManagerPeer() {
45 }
46
47 @Override
48 public void setCurrentFocusOwner(Component comp) {
49 synchronized (this) {
50 currentFocusOwner = comp;
51 }
52 }
53
54 @Override
55 public Component getCurrentFocusOwner() {
56 synchronized(this) {
57 return currentFocusOwner;
58 }
59 }
60
61 @Override
62 public void setCurrentFocusedWindow(Window win) {
63 if (focusLog.isLoggable(PlatformLogger.FINER)) {
64 focusLog.finer("Setting current focused window " + win);
65 }
66
67 XWindowPeer from = null, to = null;
68
69 synchronized(this) {
70 if (currentFocusedWindow != null) {
71 from = (XWindowPeer)currentFocusedWindow.getPeer();
72 }
73
74 currentFocusedWindow = win;
75
76 if (currentFocusedWindow != null) {
77 to = (XWindowPeer)currentFocusedWindow.getPeer();
78 }
79 }
80
81 if (from != null) {
82 from.updateSecurityWarningVisibility();
83 }
84 if (to != null) {
85 to.updateSecurityWarningVisibility();
86 }
87 }
88
89 @Override
90 public Window getCurrentFocusedWindow() {
91 synchronized(this) {
92 return currentFocusedWindow;
93 }
94 }
95
96 // TODO: do something to eliminate this forwarding
97 public static boolean deliverFocus(Component lightweightChild,
98 Component target,
99 boolean temporary,
100 boolean focusedWindowChangeAllowed,
101 long time,
102 CausedFocusEvent.Cause cause)
103 {
104 return KeyboardFocusManagerPeerImpl.deliverFocus(lightweightChild,
105 target,
106 temporary,
107 focusedWindowChangeAllowed,
108 time,
109 cause,
110 getInstance().getCurrentFocusOwner());
111 }
112 }
--- EOF ---