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 com.apple.laf; 27 28 import java.awt.*; 29 import java.security.AccessController; 30 31 import javax.swing.*; 32 import javax.swing.plaf.ComponentUI; 33 import javax.swing.plaf.basic.BasicMenuBarUI; 34 35 import sun.lwawt.macosx.LWCToolkit; 36 import sun.security.action.GetBooleanAction; 37 38 // MenuBar implementation for Mac L&F 39 public class AquaMenuBarUI extends BasicMenuBarUI implements ScreenMenuBarProvider { 40 41 static { 42 java.security.AccessController.doPrivileged( 43 (java.security.PrivilegedAction<Void>) () -> { 44 System.loadLibrary("osxui"); 45 return null; 46 }); 47 } 48 49 // Utilities 50 public void uninstallUI(final JComponent c) { 51 if (fScreenMenuBar != null) { 52 final JFrame frame = (JFrame)(c.getTopLevelAncestor()); 53 if (frame != null && frame.getMenuBar() == fScreenMenuBar) { 54 frame.setMenuBar((MenuBar)null); 55 } 56 fScreenMenuBar = null; 57 } 58 super.uninstallUI(c); 59 } 60 61 // Create PLAF 62 public static ComponentUI createUI(final JComponent c) { 63 return new AquaMenuBarUI(); 64 } 65 66 // [3320390] -- If the screen menu bar is in use, don't register keyboard actions that 67 // show the menus when F10 is pressed. 68 protected void installKeyboardActions() { 69 if (!useScreenMenuBar) { 70 super.installKeyboardActions(); 71 } 72 } 73 74 protected void uninstallKeyboardActions() { 75 if (!useScreenMenuBar) { 76 super.uninstallKeyboardActions(); 77 } 78 } 79 80 // Paint Methods 81 public void paint(final Graphics g, final JComponent c) { 82 AquaMenuPainter.instance().paintMenuBarBackground(g, c.getWidth(), c.getHeight(), c); 83 } 84 85 public Dimension getPreferredSize(final JComponent c) { 86 if (isScreenMenuBar((JMenuBar)c)) { 87 if (setScreenMenuBar((JFrame)(c.getTopLevelAncestor()))) { 88 return new Dimension(0, 0); 89 } 90 } 91 return null; 92 } 93 94 void clearScreenMenuBar(final JFrame frame) { 95 if (useScreenMenuBar) { 96 frame.setMenuBar(null); 97 } 98 } 99 100 boolean setScreenMenuBar(final JFrame frame) { 101 if (useScreenMenuBar) { 102 try { 103 getScreenMenuBar(); 104 } catch(final Throwable t) { 105 return false; 106 } 107 108 frame.setMenuBar(fScreenMenuBar); 109 } 110 111 return true; 112 } 113 114 public ScreenMenuBar getScreenMenuBar() { 115 // Lazy init of member variables means we should use a synchronized block. 116 synchronized(this) { 117 if (fScreenMenuBar == null) fScreenMenuBar = new ScreenMenuBar(this.menuBar); 118 } 119 return fScreenMenuBar; 120 } 121 122 // JMenuBars are in frame unless we're using ScreenMenuBars *and* it's 123 // been set by JFrame.setJMenuBar 124 // unless the JFrame has a normal java.awt.MenuBar (it's possible!) 125 // Other JMenuBars appear where the programmer puts them - top of window or elsewhere 126 public static final boolean isScreenMenuBar(final JMenuBar c) { 127 final javax.swing.plaf.ComponentUI ui = c.getUI(); 128 if (ui instanceof AquaMenuBarUI) { 129 if (!((AquaMenuBarUI)ui).useScreenMenuBar) return false; 130 131 final Component parent = c.getTopLevelAncestor(); 132 if (parent instanceof JFrame) { 133 final MenuBar mb = ((JFrame)parent).getMenuBar(); 134 final boolean thisIsTheJMenuBar = (((JFrame)parent).getJMenuBar() == c); 135 if (mb == null) return thisIsTheJMenuBar; 136 return (mb instanceof ScreenMenuBar && thisIsTheJMenuBar); 137 } 138 } 139 return false; 140 } 141 142 ScreenMenuBar fScreenMenuBar; 143 boolean useScreenMenuBar = getScreenMenuBarProperty(); 144 145 public static boolean getScreenMenuBarProperty() { 146 // Do not allow AWT to set the screen menu bar if it's embedded in another UI toolkit 147 if (LWCToolkit.isEmbedded()) return false; 148 if (AccessController.doPrivileged( 149 new GetBooleanAction(AquaLookAndFeel.sPropertyPrefix + "useScreenMenuBar"))) { 150 return true; 151 } 152 if (AccessController.doPrivileged( 153 new GetBooleanAction(AquaLookAndFeel.sOldPropertyPrefix + "useScreenMenuBar"))) { 154 System.err.println(AquaLookAndFeel.sOldPropertyPrefix + 155 "useScreenMenuBar has been deprecated. Please switch to " + 156 AquaLookAndFeel.sPropertyPrefix + "useScreenMenuBar"); 157 return true; 158 } 159 return false; 160 } 161 }