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