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