1 /* 2 * Copyright (c) 2011, 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 26 package sun.lwawt; 27 28 import java.awt.Component; 29 import java.awt.Window; 30 import sun.awt.KeyboardFocusManagerPeerImpl; 31 32 public class LWKeyboardFocusManagerPeer extends KeyboardFocusManagerPeerImpl { 33 private static final LWKeyboardFocusManagerPeer inst = new LWKeyboardFocusManagerPeer(); 34 35 private Window focusedWindow; 36 private Component focusOwner; 37 getInstance()38 public static LWKeyboardFocusManagerPeer getInstance() { 39 return inst; 40 } 41 LWKeyboardFocusManagerPeer()42 private LWKeyboardFocusManagerPeer() { 43 } 44 45 @Override setCurrentFocusedWindow(Window win)46 public void setCurrentFocusedWindow(Window win) { 47 LWWindowPeer from, to; 48 49 synchronized (this) { 50 if (focusedWindow == win) { 51 return; 52 } 53 54 from = (LWWindowPeer)LWToolkit.targetToPeer(focusedWindow); 55 to = (LWWindowPeer)LWToolkit.targetToPeer(win); 56 57 focusedWindow = win; 58 } 59 60 if (from != null) { 61 from.updateSecurityWarningVisibility(); 62 } 63 64 if (to != null) { 65 to.updateSecurityWarningVisibility(); 66 } 67 } 68 69 @Override getCurrentFocusedWindow()70 public Window getCurrentFocusedWindow() { 71 synchronized (this) { 72 return focusedWindow; 73 } 74 } 75 76 @Override getCurrentFocusOwner()77 public Component getCurrentFocusOwner() { 78 synchronized (this) { 79 return focusOwner; 80 } 81 } 82 83 @Override setCurrentFocusOwner(Component comp)84 public void setCurrentFocusOwner(Component comp) { 85 synchronized (this) { 86 focusOwner = comp; 87 } 88 } 89 } 90