1 /*
2 * Copyright (c) 2016, 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.X11;
26
27 import java.awt.MenuItem;
28 import java.awt.PopupMenu;
29 import java.awt.Taskbar.Feature;
30 import java.awt.peer.TaskbarPeer;
31 import java.awt.event.ActionEvent;
32
33 import sun.awt.UNIXToolkit;
34 import java.security.AccessController;
35 import java.security.PrivilegedAction;
36 import sun.security.action.GetPropertyAction;
37
38 final class XTaskbarPeer implements TaskbarPeer {
39
40 private static boolean nativeLibraryLoaded = false;
41 private static boolean initExecuted = false;
42
43 private PopupMenu menu = null;
44 private static boolean isUnity;
45
46 static {
47 String de = AccessController.doPrivileged(
48 (PrivilegedAction<String>) ()
49 -> System.getenv("XDG_CURRENT_DESKTOP"));
50 isUnity = de != null && de.equals("Unity");
51 }
52
53 private static void initWithLock() {
54 XToolkit.awtLock();
55 try {
56 if (!initExecuted) {
57 String dname = AccessController.doPrivileged(
58 new GetPropertyAction("java.desktop.appName", ""));
59 nativeLibraryLoaded = init(dname,
60 UNIXToolkit.getEnabledGtkVersion().ordinal(),
61 UNIXToolkit.isGtkVerbose());
62 if (nativeLibraryLoaded) {
63 Thread t = new Thread(null, () -> { runloop(); },
64 "TaskBar", 0, false);
65 t.setDaemon(true);
66 t.start();
67 }
68 }
69 } finally {
70 initExecuted = true;
71 XToolkit.awtUnlock();
72 }
73 }
74
75 XTaskbarPeer() {
76 initWithLock();
77 }
78
79 static boolean isTaskbarSupported() {
80 if (!isUnity) {
81 return false;
82 }
83 initWithLock();
84 return nativeLibraryLoaded;
85 }
86
87 @Override
88 public boolean isSupported(Feature feature) {
89 switch (feature) {
90 case ICON_BADGE_NUMBER:
91 case MENU:
92 case PROGRESS_VALUE:
93 case USER_ATTENTION:
94 return true;
95 default:
96 return false;
97 }
98 }
99
100 @Override
101 public void setProgressValue(int value) {
102 boolean visible
103 = value >= 0
104 && value <= 100;
105
106 double v = visible
107 ? (double) value / 100
108 : 0d;
109
110 updateProgress(v, visible);
111 }
112
113 @Override
114 public void setIconBadge(String badge) {
115 boolean visible = false;
116 long val = 0;
117 if (badge != null) {
118 try {
119 val = Long.parseLong(badge);
120 visible = true;
121 } catch (NumberFormatException e) {
122 throw new UnsupportedOperationException("The " + Feature.ICON_BADGE_TEXT
123 + " feature is not supported on the current platform!");
124 }
125 }
126 setBadge(val, visible);
127 }
128
129 @Override
130 public PopupMenu getMenu() {
131 return menu;
132 }
133
134 @Override
135 public synchronized void setMenu(PopupMenu m) {
136 this.menu = m;
137
138 if (menu != null && menu.getItemCount() > 0) {
139 int msize = menu.getItemCount();
140 MenuItem[] items = new MenuItem[msize];
141 for (int i = 0; i < msize; i++) {
142 items[i] = menu.getItem(i);
143 }
144 setNativeMenu(items);
145 } else {
146 setNativeMenu(null);
147 }
148 }
149
150 @Override
151 public void requestUserAttention(boolean enabled, boolean critical) {
152 setUrgent(enabled);
153 }
154
155 private static void menuItemCallback(MenuItem mi) {
156 if (mi != null) {
157 ActionEvent ae = new ActionEvent(mi, ActionEvent.ACTION_PERFORMED,
158 mi.getActionCommand());
159 try {
160 XToolkit.awtLock();
161 XToolkit.postEvent(XToolkit.targetToAppContext(ae.getSource()), ae);
162 } finally {
163 XToolkit.awtUnlock();
164 }
165 }
166 }
167
168 private static native boolean init(String name, int version,
169 boolean verbose);
170
171 private static native void runloop();
172
173 private native void setBadge(long value, boolean visible);
174
175 private native void updateProgress(double value, boolean visible);
176
177 private native void setUrgent(boolean urgent);
178
179 private native void setNativeMenu(MenuItem[] items);
180 }