1 /* 2 * Copyright (c) 2011, 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 javafx.embed.swing; 27 28 import java.awt.AWTEvent; 29 import java.awt.Component; 30 import java.awt.KeyboardFocusManager; 31 import java.awt.Window; 32 import java.awt.event.FocusEvent; 33 import java.awt.peer.KeyboardFocusManagerPeer; 34 import java.util.logging.Logger; 35 36 import sun.awt.AppContext; 37 import sun.awt.CausedFocusEvent; 38 import sun.awt.CausedFocusEvent.Cause; 39 import sun.awt.SunToolkit; 40 41 class FXSwingKeyboardFocusManagerPeer implements KeyboardFocusManagerPeer { 42 43 private static Logger log = 44 Logger.getLogger(FXSwingKeyboardFocusManagerPeer.class.getName()); 45 46 private static FXSwingKeyboardFocusManagerPeer instance; 47 48 static FXSwingKeyboardFocusManagerPeer getInstance() { 49 if (instance == null) { 50 instance = new FXSwingKeyboardFocusManagerPeer(); 51 } 52 return instance; 53 } 54 55 private FXSwingKeyboardFocusManagerPeer() { /* nothing to do */ } 56 57 private Window currentFocusedWindow; 58 private Component currentFocusOwner; 59 60 /** 61 * Returns the currently focused window. 62 * 63 * @return the currently focused window 64 * 65 * @see KeyboardFocusManager#getNativeFocusedWindow() 66 */ 67 @Override 68 public Window getCurrentFocusedWindow() { 69 return currentFocusedWindow; 70 } 71 72 /** 73 * Sets the component that should become the focus owner. 74 * 75 * @param comp the component to become the focus owner 76 * 77 * @see KeyboardFocusManager#setNativeFocusOwner(Component) 78 */ 79 @Override 80 public void setCurrentFocusOwner(Component comp) { 81 currentFocusOwner = comp; 82 if (currentFocusOwner instanceof ProxyWindow) { 83 ((ProxyWindow) currentFocusOwner).getProxyView().requestFocus(); 84 } 85 } 86 87 /** 88 * Returns the component that currently owns the input focus. 89 * 90 * @return the component that currently owns the input focus 91 * 92 * @see KeyboardFocusManager#getNativeFocusOwner() 93 */ 94 @Override 95 public Component getCurrentFocusOwner() { 96 return currentFocusOwner; 97 } 98 99 /** 100 * Clears the current global focus owner. 101 * 102 * @param activeWindow 103 * 104 * @see KeyboardFocusManager#clearGlobalFocusOwner() 105 */ 106 @Override 107 public void clearGlobalFocusOwner(Window activeWindow) { 108 // TODO: Implement. 109 } 110 111 public void setCurrentFocusedWindow(Window w) { 112 currentFocusedWindow = w; 113 if (currentFocusedWindow instanceof ProxyWindow) { 114 ((ProxyWindow) currentFocusedWindow).getProxyView().requestFocus(); 115 } 116 } 117 118 boolean requestFocus(Component target, Component lightweightChild, boolean temporary, 119 boolean focusedWindowChangeAllowed, long time, Cause cause) { 120 121 if (target instanceof ProxyWindow) { 122 ((ProxyWindow) target).getProxyView().requestFocus(); 123 } else { 124 log.warning("Cannot handle non-ProxyWindow component"); 125 } 126 return false; 127 } 128 129 @SuppressWarnings("restriction") 130 private void postEvent(AWTEvent ev) { 131 SunToolkit.postEvent(AppContext.getAppContext(), ev); 132 } 133 134 void focusGained(ProxyWindow w) { 135 log.fine("Focus gained: " + w); 136 @SuppressWarnings("restriction") 137 FocusEvent fg = new CausedFocusEvent(w, FocusEvent.FOCUS_GAINED, false, 138 currentFocusOwner, 139 Cause.NATIVE_SYSTEM); 140 postEvent(fg); 141 } 142 143 void focusLost(ProxyWindow w) { 144 log.fine("Focus lost: " + w); 145 @SuppressWarnings("restriction") 146 FocusEvent fl = new CausedFocusEvent(w, FocusEvent.FOCUS_LOST, false, 147 null, Cause.NATIVE_SYSTEM); 148 postEvent(fl); 149 } 150 151 }