1 /* 2 * Copyright (c) 2003, 2013, 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 30 import sun.awt.AWTAccessor; 31 import sun.awt.CausedFocusEvent; 32 import sun.awt.KeyboardFocusManagerPeerImpl; 33 import sun.util.logging.PlatformLogger; 34 35 public class XKeyboardFocusManagerPeer extends KeyboardFocusManagerPeerImpl { 36 private static final PlatformLogger focusLog = PlatformLogger.getLogger("sun.awt.X11.focus.XKeyboardFocusManagerPeer"); 37 private static final XKeyboardFocusManagerPeer inst = new XKeyboardFocusManagerPeer(); 38 39 private Component currentFocusOwner; 40 private Window currentFocusedWindow; 41 42 public static XKeyboardFocusManagerPeer getInstance() { 43 return inst; 44 } 45 46 private XKeyboardFocusManagerPeer() { 47 } 48 49 @Override 50 public void setCurrentFocusOwner(Component comp) { 51 synchronized (this) { 52 currentFocusOwner = comp; 53 } 54 } 55 56 @Override 57 public Component getCurrentFocusOwner() { 58 synchronized(this) { 59 return currentFocusOwner; 60 } 61 } 62 63 @Override 64 public void setCurrentFocusedWindow(Window win) { 65 if (focusLog.isLoggable(PlatformLogger.Level.FINER)) { 66 focusLog.finer("Setting current focused window " + win); 67 } 68 69 XWindowPeer from = null, to = null; 70 71 synchronized(this) { 72 if (currentFocusedWindow != null) { 73 from = AWTAccessor.getComponentAccessor().getPeer(currentFocusedWindow); 74 } 75 76 currentFocusedWindow = win; 77 78 if (currentFocusedWindow != null) { 79 to = AWTAccessor.getComponentAccessor().getPeer(currentFocusedWindow); 80 } 81 } 82 83 if (from != null) { 84 from.updateSecurityWarningVisibility(); 85 } 86 if (to != null) { 87 to.updateSecurityWarningVisibility(); 88 } 89 } 90 91 @Override 92 public Window getCurrentFocusedWindow() { 93 synchronized(this) { 94 return currentFocusedWindow; 95 } 96 } 97 98 // TODO: do something to eliminate this forwarding 99 public static boolean deliverFocus(Component lightweightChild, 100 Component target, 101 boolean temporary, 102 boolean focusedWindowChangeAllowed, 103 long time, 104 CausedFocusEvent.Cause cause) 105 { 106 return KeyboardFocusManagerPeerImpl.deliverFocus(lightweightChild, 107 target, 108 temporary, 109 focusedWindowChangeAllowed, 110 time, 111 cause, 112 getInstance().getCurrentFocusOwner()); 113 } 114 }