1 /*
2 * Copyright (c) 2011, 2019, 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 jdk.internal.access.SharedSecrets.getJavaLangAccess().loadLibrary("osxui");
43 }
44
45 // Utilities
46 public void uninstallUI(final JComponent c) {
47 if (fScreenMenuBar != null) {
48 final JFrame frame = (JFrame)(c.getTopLevelAncestor());
49 if (frame != null && frame.getMenuBar() == fScreenMenuBar) {
50 frame.setMenuBar((MenuBar)null);
51 }
52 fScreenMenuBar = null;
53 }
54 super.uninstallUI(c);
55 }
56
57 // Create PLAF
58 public static ComponentUI createUI(final JComponent c) {
59 return new AquaMenuBarUI();
60 }
61
62 // [3320390] -- If the screen menu bar is in use, don't register keyboard actions that
63 // show the menus when F10 is pressed.
64 protected void installKeyboardActions() {
65 if (!useScreenMenuBar) {
66 super.installKeyboardActions();
67 }
68 }
69
70 protected void uninstallKeyboardActions() {
71 if (!useScreenMenuBar) {
72 super.uninstallKeyboardActions();
73 }
74 }
75
76 // Paint Methods
77 public void paint(final Graphics g, final JComponent c) {
78 AquaMenuPainter.instance().paintMenuBarBackground(g, c.getWidth(), c.getHeight(), c);
79 }
80
81 public Dimension getPreferredSize(final JComponent c) {
82 if (isScreenMenuBar((JMenuBar)c)) {
83 if (setScreenMenuBar((JFrame)(c.getTopLevelAncestor()))) {
84 return new Dimension(0, 0);
85 }
86 }
87 return null;
88 }
89
90 void clearScreenMenuBar(final JFrame frame) {
91 if (useScreenMenuBar) {
92 frame.setMenuBar(null);
93 }
94 }
95
96 boolean setScreenMenuBar(final JFrame frame) {
97 if (useScreenMenuBar) {
98 try {
99 getScreenMenuBar();
100 } catch(final Throwable t) {
101 return false;
102 }
103
104 frame.setMenuBar(fScreenMenuBar);
105 }
106
107 return true;
108 }
109
110 public ScreenMenuBar getScreenMenuBar() {
111 // Lazy init of member variables means we should use a synchronized block.
112 synchronized(this) {
113 if (fScreenMenuBar == null) fScreenMenuBar = new ScreenMenuBar(this.menuBar);
114 }
115 return fScreenMenuBar;
116 }
117
118 // JMenuBars are in frame unless we're using ScreenMenuBars *and* it's
119 // been set by JFrame.setJMenuBar
120 // unless the JFrame has a normal java.awt.MenuBar (it's possible!)
121 // Other JMenuBars appear where the programmer puts them - top of window or elsewhere
122 public static final boolean isScreenMenuBar(final JMenuBar c) {
123 final javax.swing.plaf.ComponentUI ui = c.getUI();
124 if (ui instanceof AquaMenuBarUI) {
125 if (!((AquaMenuBarUI)ui).useScreenMenuBar) return false;
126
127 final Component parent = c.getTopLevelAncestor();
128 if (parent instanceof JFrame) {
129 final MenuBar mb = ((JFrame)parent).getMenuBar();
130 final boolean thisIsTheJMenuBar = (((JFrame)parent).getJMenuBar() == c);
131 if (mb == null) return thisIsTheJMenuBar;
132 return (mb instanceof ScreenMenuBar && thisIsTheJMenuBar);
133 }
134 }
135 return false;
136 }
137
138 ScreenMenuBar fScreenMenuBar;
139 boolean useScreenMenuBar = getScreenMenuBarProperty();
140
141 public static boolean getScreenMenuBarProperty() {
142 // Do not allow AWT to set the screen menu bar if it's embedded in another UI toolkit
143 if (LWCToolkit.isEmbedded()) return false;
144 if (AccessController.doPrivileged(
145 new GetBooleanAction(AquaLookAndFeel.sPropertyPrefix + "useScreenMenuBar"))) {
146 return true;
147 }
148 if (AccessController.doPrivileged(
149 new GetBooleanAction(AquaLookAndFeel.sOldPropertyPrefix + "useScreenMenuBar"))) {
150 System.err.println(AquaLookAndFeel.sOldPropertyPrefix +
151 "useScreenMenuBar has been deprecated. Please switch to " +
152 AquaLookAndFeel.sPropertyPrefix + "useScreenMenuBar");
153 return true;
154 }
155 return false;
156 }
157 }