1 /*
   2  * Copyright (c) 2008, 2013, 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.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25   @test %I% %E%
  26   @bug 6315717
  27   @summary verifies that InputEvents button masks arrays are the same
  28   @author Andrei Dmitriev : area=awt.event
  29   @run main ButtonArraysEquality
  30  */
  31 
  32 import java.awt.*;
  33 import java.awt.event.*;
  34 import java.lang.reflect.*;
  35 import java.security.AccessController;
  36 import java.security.PrivilegedAction;
  37 
  38 // get array InputEvent.BUTTON_MASK via reflection
  39 // get array InputEvent.BUTTON_DOWN_MASK via reflection
  40 // compare their lengths and values
  41 
  42 public class ButtonArraysEquality {
  43     static int [] eventDownMask = new int []{InputEvent.BUTTON1_DOWN_MASK, InputEvent.BUTTON2_DOWN_MASK, InputEvent.BUTTON3_DOWN_MASK};
  44 
  45     public static void main(String []s){
  46         int [] buttonDownMasksAPI = new int [MouseInfo.getNumberOfButtons()];
  47         for (int i = 0; i < MouseInfo.getNumberOfButtons(); i++){
  48             buttonDownMasksAPI[i] = InputEvent.getMaskForButton(i+1);
  49             System.out.println("TEST: "+buttonDownMasksAPI[i]);
  50         }
  51 
  52         // getButtonDownMasks()
  53         Object obj = AccessController.doPrivileged(
  54                                             new PrivilegedAction() {
  55                                                 public Object run() {
  56                                                     try {
  57                                                         Class clazz = Class.forName("java.awt.event.InputEvent");
  58                                                         Method method  = clazz.getDeclaredMethod("getButtonDownMasks",new Class [] {});
  59                                                         if (method != null) {
  60                                                             method.setAccessible(true);
  61                                                             return method.invoke(null, (Object[])null);
  62                                                         }
  63                                                     }catch (Exception e){
  64                                                         throw new RuntimeException("Test failed. Exception occured:", e);
  65                                                     }
  66                                                     return null;
  67                                                 }
  68                                             });
  69 
  70         int [] buttonDownMasks = new int [Array.getLength(obj)];
  71         checkNullAndPutValuesToArray(buttonDownMasks, obj);
  72 
  73         //check lengths: array shouldn't contain less elements then the number of buttons on a mouse
  74         if (buttonDownMasks.length < buttonDownMasksAPI.length){
  75             throw new RuntimeException("Test failed. The lengths array is less then the number of buttons");
  76         }
  77 
  78         // verify values for first three buttons
  79         for (int i = 0; i < 3; i++) {
  80             if (eventDownMask[i] != buttonDownMasks[i])
  81             {
  82                 System.out.println("Test : "+ i + " | " + " | " +eventDownMask[i] + " | "+ buttonDownMasks[i]);
  83                 throw new RuntimeException("Failure: masks are not correct for standard buttons");
  84             }
  85         }
  86 
  87         // verify values for extra buttons if any
  88         for (int i = 3; i < MouseInfo.getNumberOfButtons(); i++) {
  89             if (buttonDownMasksAPI[i] != buttonDownMasks[i]) {
  90                 throw new RuntimeException("Failure: masks are not the same for extra buttons");
  91             }
  92         }
  93         System.out.println("Test passed.");
  94     }
  95 
  96     public static void checkNullAndPutValuesToArray(int [] array, Object obj){
  97         if (obj == null){
  98             throw new RuntimeException("Test failed. The array obtained via reflection is "+obj);
  99         }
 100 
 101         for (int i = 0; i < Array.getLength(obj); i++){
 102             System.out.println("Test (Reflection): "+ Array.getInt(obj, i));
 103             array[i] = Array.getInt(obj, i);
 104         }
 105     }
 106 }