1 /*
2 * Copyright (c) 1996, 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 package sun.awt.windows;
26
27 import java.util.ResourceBundle;
28 import java.util.MissingResourceException;
29 import java.awt.*;
30 import java.awt.peer.*;
31 import java.awt.event.ActionEvent;
32 import java.security.AccessController;
33 import java.security.PrivilegedAction;
34 import sun.util.logging.PlatformLogger;
35
36 class WMenuItemPeer extends WObjectPeer implements MenuItemPeer {
37 private static final PlatformLogger log = PlatformLogger.getLogger("sun.awt.WMenuItemPeer");
38
39 static {
40 initIDs();
41 }
42
43 String shortcutLabel;
44 //WMenuBarPeer extends WMenuPeer
45 //so parent is always instanceof WMenuPeer
46 protected WMenuPeer parent;
47
48 // MenuItemPeer implementation
49
50 private synchronized native void _dispose();
51 protected void disposeImpl() {
52 WToolkit.targetDisposedPeer(target, this);
53 _dispose();
54 }
55
56 public void setEnabled(boolean b) {
57 enable(b);
58 }
59
60 private void readShortcutLabel() {
61 //Fix for 6288578: PIT. Windows: Shortcuts displayed for the menuitems in a popup menu
62 WMenuPeer ancestor = parent;
63 while (ancestor != null && !(ancestor instanceof WMenuBarPeer)) {
64 ancestor = ancestor.parent;
65 }
66 if (ancestor instanceof WMenuBarPeer) {
67 MenuShortcut sc = ((MenuItem)target).getShortcut();
68 shortcutLabel = (sc != null) ? sc.toString() : null;
69 } else {
70 shortcutLabel = null;
71 }
72 }
73
74 public void setLabel(String label) {
75 //Fix for 6288578: PIT. Windows: Shortcuts displayed for the menuitems in a popup menu
76 readShortcutLabel();
77 _setLabel(label);
78 }
79 public native void _setLabel(String label);
80
81 // Toolkit & peer internals
82
83 private final boolean isCheckbox;
84
85 protected WMenuItemPeer() {
86 isCheckbox = false;
87 }
88 WMenuItemPeer(MenuItem target) {
89 this(target, false);
90 }
91
92 WMenuItemPeer(MenuItem target, boolean isCheckbox) {
93 this.target = target;
94 this.parent = (WMenuPeer) WToolkit.targetToPeer(target.getParent());
95 this.isCheckbox = isCheckbox;
96 parent.addChildPeer(this);
97 create(parent);
98 // fix for 5088782: check if menu object is created successfully
99 checkMenuCreation();
100 //Fix for 6288578: PIT. Windows: Shortcuts displayed for the menuitems in a popup menu
101 readShortcutLabel();
102 }
103
104 void checkMenuCreation()
105 {
106 // fix for 5088782: check if menu peer is created successfully
107 if (pData == 0)
108 {
109 if (createError != null)
110 {
111 throw createError;
112 }
113 else
114 {
115 throw new InternalError("couldn't create menu peer");
116 }
117 }
118
119 }
120
121 /*
122 * Post an event. Queue it for execution by the callback thread.
123 */
124 void postEvent(AWTEvent event) {
125 WToolkit.postEvent(WToolkit.targetToAppContext(target), event);
126 }
127
128 native void create(WMenuPeer parent);
129
130 native void enable(boolean e);
131
132 // native callbacks
133
134 void handleAction(final long when, final int modifiers) {
135 WToolkit.executeOnEventHandlerThread(target, new Runnable() {
136 public void run() {
137 postEvent(new ActionEvent(target, ActionEvent.ACTION_PERFORMED,
138 ((MenuItem)target).
139 getActionCommand(), when,
140 modifiers));
141 }
142 });
143 }
144
145 private static Font defaultMenuFont;
146
147 static {
148 defaultMenuFont = AccessController.doPrivileged(
149 new PrivilegedAction <Font> () {
150 public Font run() {
151 try {
152 ResourceBundle rb = ResourceBundle.getBundle("sun.awt.windows.awtLocalization");
153 return Font.decode(rb.getString("menuFont"));
154 } catch (MissingResourceException e) {
155 if (log.isLoggable(PlatformLogger.Level.FINE)) {
156 log.fine("WMenuItemPeer: " + e.getMessage()+". Using default MenuItem font.", e);
157 }
158 return new Font("SanSerif", Font.PLAIN, 11);
159 }
160 }
161 });
162 }
163
164 static Font getDefaultFont() {
165 return defaultMenuFont;
166 }
167
168 /**
169 * Initialize JNI field and method IDs
170 */
171 private static native void initIDs();
172
173 private native void _setFont(Font f);
174
175 public void setFont(final Font f) {
176 _setFont(f);
177 }
178 }