1 /*
   2  * Copyright (c) 2011, 2017, 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.awt;
  27 
  28 import java.awt.*;
  29 import java.awt.datatransfer.Clipboard;
  30 import java.awt.dnd.DragGestureListener;
  31 import java.awt.dnd.DragGestureRecognizer;
  32 import java.awt.dnd.DragSource;
  33 import java.awt.im.InputMethodHighlight;
  34 import java.awt.im.spi.InputMethodDescriptor;
  35 import java.awt.image.ColorModel;
  36 import java.awt.peer.FramePeer;
  37 import java.awt.peer.KeyboardFocusManagerPeer;
  38 import java.awt.peer.SystemTrayPeer;
  39 import java.awt.peer.TrayIconPeer;
  40 import java.util.Map;
  41 import java.util.Properties;
  42 
  43 /*
  44  * HToolkit is a platform independent Toolkit used
  45  * with the HeadlessToolkit.  It is primarily used
  46  * in embedded JRE's that do not have sun/awt/X11 classes.
  47  */
  48 public final class HToolkit extends SunToolkit implements ComponentFactory {
  49 
  50     private static final KeyboardFocusManagerPeer kfmPeer = new KeyboardFocusManagerPeer() {
  51         @Override
  52         public void setCurrentFocusedWindow(Window win) {}
  53         @Override
  54         public Window getCurrentFocusedWindow() { return null; }
  55         @Override
  56         public void setCurrentFocusOwner(Component comp) {}
  57         @Override
  58         public Component getCurrentFocusOwner() { return null; }
  59         @Override
  60         public void clearGlobalFocusOwner(Window activeWindow) {}
  61     };
  62 
  63     public HToolkit() {
  64     }
  65 
  66     /*
  67      * Component peer objects - unsupported.
  68      */
  69 
  70     @Override
  71     public FramePeer createLightweightFrame(LightweightFrame target)
  72         throws HeadlessException {
  73         throw new HeadlessException();
  74     }
  75 
  76     @Override
  77     public KeyboardFocusManagerPeer getKeyboardFocusManagerPeer() {
  78         // See 6833019.
  79         return kfmPeer;
  80     }
  81 
  82     @Override
  83     public TrayIconPeer createTrayIcon(TrayIcon target)
  84       throws HeadlessException {
  85         throw new HeadlessException();
  86     }
  87 
  88     @Override
  89     public SystemTrayPeer createSystemTray(SystemTray target)
  90       throws HeadlessException {
  91         throw new HeadlessException();
  92     }
  93 
  94     @Override
  95     public boolean isTraySupported() {
  96         return false;
  97     }
  98 
  99     public GlobalCursorManager getGlobalCursorManager()
 100         throws HeadlessException {
 101         throw new HeadlessException();
 102     }
 103 
 104     /*
 105      * Headless toolkit - unsupported.
 106      */
 107     @Override
 108     protected void loadSystemColors(int[] systemColors)
 109         throws HeadlessException {
 110         throw new HeadlessException();
 111     }
 112 
 113     @Override
 114     public ColorModel getColorModel()
 115         throws HeadlessException {
 116         throw new HeadlessException();
 117     }
 118 
 119     @Override
 120     public int getScreenResolution()
 121         throws HeadlessException {
 122         throw new HeadlessException();
 123     }
 124 
 125     @Override
 126     public Map<java.awt.font.TextAttribute, ?> mapInputMethodHighlight(
 127             InputMethodHighlight highlight)
 128         throws HeadlessException {
 129         throw new HeadlessException();
 130     }
 131 
 132     @Override
 133     @Deprecated(since = "10")
 134     public int getMenuShortcutKeyMask()
 135         throws HeadlessException {
 136         throw new HeadlessException();
 137     }
 138 
 139     @Override
 140     public int getMenuShortcutKeyMaskEx()
 141         throws HeadlessException {
 142         throw new HeadlessException();
 143     }
 144 
 145     @Override
 146     public boolean getLockingKeyState(int keyCode)
 147         throws UnsupportedOperationException {
 148         throw new HeadlessException();
 149     }
 150 
 151     @Override
 152     public void setLockingKeyState(int keyCode, boolean on)
 153         throws UnsupportedOperationException {
 154         throw new HeadlessException();
 155     }
 156 
 157     @Override
 158     public Cursor createCustomCursor(Image cursor, Point hotSpot, String name)
 159         throws IndexOutOfBoundsException, HeadlessException {
 160         throw new HeadlessException();
 161     }
 162 
 163     @Override
 164     public Dimension getBestCursorSize(int preferredWidth, int preferredHeight)
 165         throws HeadlessException {
 166         throw new HeadlessException();
 167     }
 168 
 169     @Override
 170     public int getMaximumCursorColors()
 171         throws HeadlessException {
 172         throw new HeadlessException();
 173     }
 174 
 175     @Override
 176     public <T extends DragGestureRecognizer> T
 177         createDragGestureRecognizer(Class<T> abstractRecognizerClass,
 178                                     DragSource ds, Component c,
 179                                     int srcActions, DragGestureListener dgl)
 180     {
 181         return null;
 182     }
 183 
 184     @Override
 185     public Dimension getScreenSize()
 186         throws HeadlessException {
 187         throw new HeadlessException();
 188     }
 189 
 190     @Override
 191     public Insets getScreenInsets(GraphicsConfiguration gc)
 192         throws HeadlessException {
 193         throw new HeadlessException();
 194     }
 195 
 196     @Override
 197     public void setDynamicLayout(boolean dynamic)
 198         throws HeadlessException {
 199         throw new HeadlessException();
 200     }
 201 
 202     @Override
 203     protected boolean isDynamicLayoutSet()
 204         throws HeadlessException {
 205         throw new HeadlessException();
 206     }
 207 
 208     @Override
 209     public boolean isDynamicLayoutActive()
 210         throws HeadlessException {
 211         throw new HeadlessException();
 212     }
 213 
 214     @Override
 215     public Clipboard getSystemClipboard()
 216         throws HeadlessException {
 217         throw new HeadlessException();
 218     }
 219 
 220     /*
 221      * Printing
 222      */
 223     @Override
 224     public PrintJob getPrintJob(Frame frame, String jobtitle,
 225         JobAttributes jobAttributes,
 226         PageAttributes pageAttributes) {
 227         if (frame != null) {
 228             // Should never happen
 229             throw new HeadlessException();
 230         }
 231         throw new IllegalArgumentException(
 232                 "PrintJob not supported in a headless environment");
 233     }
 234 
 235     @Override
 236     public PrintJob getPrintJob(Frame frame, String doctitle, Properties props)
 237     {
 238         if (frame != null) {
 239             // Should never happen
 240             throw new HeadlessException();
 241         }
 242         throw new IllegalArgumentException(
 243                 "PrintJob not supported in a headless environment");
 244     }
 245 
 246     /*
 247      * Headless toolkit - supported.
 248      */
 249 
 250     @Override
 251     public void sync() {
 252         // Do nothing
 253     }
 254 
 255     @Override
 256     protected boolean syncNativeQueue(final long timeout) {
 257         return false;
 258     }
 259 
 260     @Override
 261     public void beep() {
 262         // Send alert character
 263         System.out.write(0x07);
 264     }
 265 
 266     /*
 267      * Modality
 268      */
 269     @Override
 270     public boolean isModalityTypeSupported(Dialog.ModalityType modalityType) {
 271         return false;
 272     }
 273 
 274     @Override
 275     public boolean isModalExclusionTypeSupported(Dialog.ModalExclusionType exclusionType) {
 276         return false;
 277     }
 278 
 279     @Override
 280     public boolean isDesktopSupported() {
 281         return false;
 282     }
 283 
 284     @Override
 285     public boolean isTaskbarSupported() {
 286         return false;
 287     }
 288 
 289     public boolean isWindowOpacityControlSupported() {
 290         return false;
 291     }
 292 
 293     @Override
 294     public boolean isWindowShapingSupported() {
 295         return false;
 296     }
 297 
 298     @Override
 299     public boolean isWindowTranslucencySupported() {
 300         return false;
 301     }
 302 
 303     @Override
 304     public  void grab(Window w) { }
 305 
 306     @Override
 307     public void ungrab(Window w) { }
 308 
 309     protected boolean syncNativeQueue() { return false; }
 310 
 311     @Override
 312     public InputMethodDescriptor getInputMethodAdapterDescriptor()
 313         throws AWTException
 314     {
 315         return (InputMethodDescriptor)null;
 316     }
 317 }