1 /*
   2  * Copyright (c) 2003, 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 package sun.awt.X11;
  26 
  27 import java.awt.*;
  28 import java.awt.peer.*;
  29 import java.security.AccessController;
  30 import sun.security.action.GetPropertyAction;
  31 
  32 import sun.awt.AWTAccessor;
  33 import sun.awt.SunToolkit;
  34 import sun.awt.UNIXToolkit;
  35 import sun.awt.X11GraphicsConfig;
  36 
  37 class XRobotPeer implements RobotPeer {
  38 
  39     static final boolean tryGtk;
  40     static {
  41         loadNativeLibraries();
  42         tryGtk = Boolean.parseBoolean(
  43                             AccessController.doPrivileged(
  44                                     new GetPropertyAction("awt.robot.gtk", "true")
  45                             ));
  46     }
  47     private static volatile boolean useGtk;
  48     private X11GraphicsConfig   xgc = null;
  49 
  50     /*
  51      * native implementation uses some static shared data (pipes, processes)
  52      * so use a class lock to synchronize native method calls
  53      */
  54     static Object robotLock = new Object();
  55 
  56     XRobotPeer(GraphicsConfiguration gc) {
  57         this.xgc = (X11GraphicsConfig)gc;
  58         SunToolkit tk = (SunToolkit)Toolkit.getDefaultToolkit();
  59         setup(tk.getNumberOfButtons(),
  60                 AWTAccessor.getInputEventAccessor().getButtonDownMasks());
  61 
  62         boolean isGtkSupported = false;
  63         if (tryGtk) {
  64             if (tk instanceof UNIXToolkit && ((UNIXToolkit) tk).loadGTK()) {
  65                 isGtkSupported = true;
  66             }
  67         }
  68 
  69         useGtk = (tryGtk && isGtkSupported);
  70     }
  71 
  72     @Override
  73     public void dispose() {
  74         // does nothing
  75     }
  76 
  77     @Override
  78     public void mouseMove(int x, int y) {
  79         mouseMoveImpl(xgc, xgc.scaleUp(x), xgc.scaleUp(y));
  80     }
  81 
  82     @Override
  83     public void mousePress(int buttons) {
  84         mousePressImpl(buttons);
  85     }
  86 
  87     @Override
  88     public void mouseRelease(int buttons) {
  89         mouseReleaseImpl(buttons);
  90     }
  91 
  92     @Override
  93     public void mouseWheel(int wheelAmt) {
  94         mouseWheelImpl(wheelAmt);
  95     }
  96 
  97     @Override
  98     public void keyPress(int keycode) {
  99         keyPressImpl(keycode);
 100     }
 101 
 102     @Override
 103     public void keyRelease(int keycode) {
 104         keyReleaseImpl(keycode);
 105     }
 106 
 107     @Override
 108     public int getRGBPixel(int x, int y) {
 109         int pixelArray[] = new int[1];
 110         getRGBPixelsImpl(xgc, x, y, 1, 1, pixelArray, useGtk);
 111         return pixelArray[0];
 112     }
 113 
 114     @Override
 115     public int [] getRGBPixels(Rectangle bounds) {
 116         int pixelArray[] = new int[bounds.width*bounds.height];
 117         getRGBPixelsImpl(xgc, bounds.x, bounds.y, bounds.width, bounds.height,
 118                             pixelArray, useGtk);
 119         return pixelArray;
 120     }
 121 
 122     private static synchronized native void setup(int numberOfButtons, int[] buttonDownMasks);
 123     private static native void loadNativeLibraries();
 124 
 125     private static synchronized native void mouseMoveImpl(X11GraphicsConfig xgc, int x, int y);
 126     private static synchronized native void mousePressImpl(int buttons);
 127     private static synchronized native void mouseReleaseImpl(int buttons);
 128     private static synchronized native void mouseWheelImpl(int wheelAmt);
 129 
 130     private static synchronized native void keyPressImpl(int keycode);
 131     private static synchronized native void keyReleaseImpl(int keycode);
 132 
 133     private static synchronized native void getRGBPixelsImpl(X11GraphicsConfig xgc,
 134             int x, int y, int width, int height, int pixelArray[], boolean isGtkSupported);
 135 }