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 sun.lwawt.macosx;
27
28 import sun.awt.SunToolkit;
29 import sun.lwawt.LWToolkit;
30
31 import java.awt.MenuContainer;
32 import java.awt.MenuItem;
33 import java.awt.MenuShortcut;
34 import java.awt.event.*;
35 import java.awt.peer.MenuItemPeer;
36 import java.util.concurrent.atomic.AtomicBoolean;
37
38 public class CMenuItem extends CMenuComponent implements MenuItemPeer {
39
40 private final AtomicBoolean enabled = new AtomicBoolean(true);
41
42 public CMenuItem(MenuItem target) {
43 super(target);
44 initialize(target);
45 }
46
47 // This way we avoiding invocation of the setters twice
48 protected void initialize(MenuItem target) {
49 if (!isSeparator()) {
50 setLabel(target.getLabel());
51 setEnabled(target.isEnabled());
52 }
53 }
54
55 private boolean isSeparator() {
56 String label = ((MenuItem)getTarget()).getLabel();
57 return (label != null && label.equals("-"));
58 }
59
60 @Override
61 protected long createModel() {
62 CMenuComponent parent = (CMenuComponent)LWToolkit.targetToPeer(getTarget().getParent());
63 return nativeCreate(parent.getModel(), isSeparator());
64 }
65
66 public void setLabel(String label, char keyChar, int keyCode, int modifiers) {
67 int keyMask = modifiers;
68 if (keyCode == KeyEvent.VK_UNDEFINED) {
69 MenuShortcut shortcut = ((MenuItem)getTarget()).getShortcut();
70
71 if (shortcut != null) {
72 keyCode = shortcut.getKey();
73 keyMask |= InputEvent.META_MASK;
74
75 if (shortcut.usesShiftModifier()) {
76 keyMask |= InputEvent.SHIFT_MASK;
77 }
78 }
79 }
80
81 if (label == null) {
82 label = "";
83 }
84
85 // <rdar://problem/3654824>
86 // Native code uses a keyChar of 0 to indicate that the
87 // keyCode should be used to generate the shortcut. Translate
88 // CHAR_UNDEFINED into 0.
89 if (keyChar == KeyEvent.CHAR_UNDEFINED) {
90 keyChar = 0;
91 }
92
93 nativeSetLabel(getModel(), label, keyChar, keyCode, keyMask);
94 }
95
96 @Override
97 public void setLabel(String label) {
98 setLabel(label, (char)0, KeyEvent.VK_UNDEFINED, 0);
99 }
100
101 /**
102 * This is new API that we've added to AWT menu items
103 * because AWT menu items are used for Swing screen menu bars
104 * and we want to support the NSMenuItem image apis.
105 * There isn't a need to expose this except in a instanceof because
106 * it isn't defined in the peer api.
107 */
108 public void setImage(java.awt.Image img) {
109 CImage cimg = CImage.getCreator().createFromImage(img);
110 nativeSetImage(getModel(), cimg == null ? 0L : cimg.ptr);
111 }
112
113 /**
114 * New API for tooltips
115 */
116 public void setToolTipText(String text) {
117 nativeSetTooltip(getModel(), text);
118 }
119
120 // @Override
121 public void enable() {
122 setEnabled(true);
123 }
124
125 // @Override
126 public void disable() {
127 setEnabled(false);
128 }
129
130 public final boolean isEnabled() {
131 return enabled.get();
132 }
133
134 @Override
135 public void setEnabled(boolean b) {
136 final Object parent = LWToolkit.targetToPeer(getTarget().getParent());
137 if (parent instanceof CMenuItem) {
138 b &= ((CMenuItem) parent).isEnabled();
139 }
140 if (enabled.compareAndSet(!b, b)) {
141 nativeSetEnabled(getModel(), b);
142 }
143 }
144
145 private native long nativeCreate(long parentMenu, boolean isSeparator);
146 private native void nativeSetLabel(long modelPtr, String label, char keyChar, int keyCode, int modifiers);
147 private native void nativeSetImage(long modelPtr, long image);
148 private native void nativeSetTooltip(long modelPtr, String text);
149 private native void nativeSetEnabled(long modelPtr, boolean b);
150
151 // native callbacks
152 void handleAction(final long when, final int modifiers) {
153 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
154 public void run() {
155 final String cmd = ((MenuItem)getTarget()).getActionCommand();
156 final ActionEvent event = new ActionEvent(getTarget(), ActionEvent.ACTION_PERFORMED, cmd, when, modifiers);
157 SunToolkit.postEvent(SunToolkit.targetToAppContext(getTarget()), event);
158 }
159 });
160 }
161 }