1 /* 2 * Copyright (c) 2003, 2016, 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 java.awt.event.FocusEvent; 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 getInstance()42 public static XKeyboardFocusManagerPeer getInstance() { 43 return inst; 44 } 45 XKeyboardFocusManagerPeer()46 private XKeyboardFocusManagerPeer() { 47 } 48 49 @Override setCurrentFocusOwner(Component comp)50 public void setCurrentFocusOwner(Component comp) { 51 synchronized (this) { 52 currentFocusOwner = comp; 53 } 54 } 55 56 @Override getCurrentFocusOwner()57 public Component getCurrentFocusOwner() { 58 synchronized(this) { 59 return currentFocusOwner; 60 } 61 } 62 63 @Override setCurrentFocusedWindow(Window win)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 getCurrentFocusedWindow()92 public Window getCurrentFocusedWindow() { 93 synchronized(this) { 94 return currentFocusedWindow; 95 } 96 } 97 98 // TODO: do something to eliminate this forwarding deliverFocus(Component lightweightChild, Component target, boolean temporary, boolean focusedWindowChangeAllowed, long time, FocusEvent.Cause cause)99 public static boolean deliverFocus(Component lightweightChild, 100 Component target, 101 boolean temporary, 102 boolean focusedWindowChangeAllowed, 103 long time, 104 FocusEvent.Cause cause) 105 { 106 return KeyboardFocusManagerPeerImpl.deliverFocus(lightweightChild, 107 target, 108 temporary, 109 focusedWindowChangeAllowed, 110 time, 111 cause, 112 getInstance().getCurrentFocusOwner()); 113 } 114 } 115