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