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.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 }