1 /*
2 * Copyright (c) 2011, 2018, 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 java.awt.MenuItem;
29 import java.awt.MenuShortcut;
30 import java.awt.event.ActionEvent;
31 import java.awt.event.InputEvent;
32 import java.awt.event.KeyEvent;
33 import java.awt.peer.MenuItemPeer;
34 import java.util.concurrent.atomic.AtomicBoolean;
35
36 import sun.awt.SunToolkit;
37 import sun.lwawt.LWToolkit;
38
39 public class CMenuItem extends CMenuComponent implements MenuItemPeer {
40
41 private final AtomicBoolean enabled = new AtomicBoolean(true);
42
43 public CMenuItem(MenuItem target) {
44 super(target);
45 initialize(target);
46 }
47
48 // This way we avoiding invocation of the setters twice
49 protected void initialize(MenuItem target) {
50 if (!isSeparator()) {
51 setLabel(target.getLabel());
52 setEnabled(target.isEnabled());
53 }
54 }
55
56 private boolean isSeparator() {
57 String label = ((MenuItem)getTarget()).getLabel();
58 return (label != null && label.equals("-"));
59 }
60
61 @Override
62 long createModel() {
63 CMenuComponent parent = (CMenuComponent)LWToolkit.targetToPeer(getTarget().getParent());
64 return parent.executeGet(ptr->nativeCreate(ptr, isSeparator()));
65 }
66 @SuppressWarnings("deprecation")
67 public void setLabel(String label, char keyChar, int keyCode, int modifiers) {
68 int keyMask = modifiers;
69 if (keyCode == KeyEvent.VK_UNDEFINED) {
70 MenuShortcut shortcut = ((MenuItem)getTarget()).getShortcut();
71
72 if (shortcut != null) {
73 keyCode = shortcut.getKey();
74 keyMask |= InputEvent.META_MASK;
75
76 if (shortcut.usesShiftModifier()) {
77 keyMask |= InputEvent.SHIFT_MASK;
78 }
79 }
80 }
81
82 if (label == null) {
83 label = "";
84 }
85
86 // <rdar://problem/3654824>
87 // Native code uses a keyChar of 0 to indicate that the
88 // keyCode should be used to generate the shortcut. Translate
89 // CHAR_UNDEFINED into 0.
90 if (keyChar == KeyEvent.CHAR_UNDEFINED) {
91 keyChar = 0;
92 }
93
94 final String finalLabel = label;
95 final char finalKeyChar = keyChar;
96 final int finalKeyCode = keyCode;
97 final int finalKeyMask = keyMask;
98 execute(ptr -> nativeSetLabel(ptr, finalLabel, finalKeyChar,
99 finalKeyCode, finalKeyMask));
100 }
101
102 @Override
103 public void setLabel(String label) {
104 setLabel(label, (char)0, KeyEvent.VK_UNDEFINED, 0);
105 }
106
107 /**
108 * This is new API that we've added to AWT menu items
109 * because AWT menu items are used for Swing screen menu bars
110 * and we want to support the NSMenuItem image apis.
111 * There isn't a need to expose this except in a instanceof because
112 * it isn't defined in the peer api.
113 */
114 public final void setImage(final java.awt.Image img) {
115 CImage cimg = CImage.getCreator().createFromImage(img);
116 execute(ptr -> {
117 if (cimg == null) {
118 nativeSetImage(ptr, 0L);
119 } else {
120 cimg.execute(imgPtr -> nativeSetImage(ptr, imgPtr));
121 }
122 });
123 }
124
125 /**
126 * New API for tooltips
127 */
128 public final void setToolTipText(final String text) {
129 execute(ptr -> nativeSetTooltip(ptr, text));
130 }
131
132 public final boolean isEnabled() {
133 return enabled.get();
134 }
135
136 @Override
137 public void setEnabled(boolean b) {
138 final Object parent = LWToolkit.targetToPeer(getTarget().getParent());
139 if (parent instanceof CMenuItem) {
140 b &= ((CMenuItem) parent).isEnabled();
141 }
142 if (enabled.compareAndSet(!b, b)) {
143 final boolean finalB = b;
144 execute(ptr->nativeSetEnabled(ptr, finalB));
145 }
146 }
147
148 private native long nativeCreate(long parentMenu, boolean isSeparator);
149 private native void nativeSetLabel(long modelPtr, String label, char keyChar, int keyCode, int modifiers);
150 private native void nativeSetImage(long modelPtr, long image);
151 private native void nativeSetTooltip(long modelPtr, String text);
152 private native void nativeSetEnabled(long modelPtr, boolean b);
153
154 // native callbacks
155 void handleAction(final long when, final int modifiers) {
156 SunToolkit.executeOnEventHandlerThread(getTarget(), new Runnable() {
157 public void run() {
158 final String cmd = ((MenuItem)getTarget()).getActionCommand();
159 final ActionEvent event = new ActionEvent(getTarget(), ActionEvent.ACTION_PERFORMED, cmd, when, modifiers);
160 SunToolkit.postEvent(SunToolkit.targetToAppContext(getTarget()), event);
161 }
162 });
163 }
164 }