1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   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   @key headful
  27   @bug 6315717
  28   @summary verifies that InputEvents button masks arrays are the same
  29   @author Andrei Dmitriev : area=awt.event
  30   @run main ButtonArraysEquality
  31  */
  32 
  33 import java.awt.*;
  34 import java.awt.event.*;
  35 import java.lang.reflect.*;
  36 import java.security.AccessController;
  37 import java.security.PrivilegedAction;
  38 
  39 // get array InputEvent.BUTTON_MASK via reflection
  40 // get array InputEvent.BUTTON_DOWN_MASK via reflection
  41 // compare their lengths and values
  42 
  43 public class ButtonArraysEquality {
  44     static int [] eventDownMask = new int []{InputEvent.BUTTON1_DOWN_MASK, InputEvent.BUTTON2_DOWN_MASK, InputEvent.BUTTON3_DOWN_MASK};
  45 
  46     public static void main(String []s){
  47         int [] buttonDownMasksAPI = new int [MouseInfo.getNumberOfButtons()];
  48         for (int i = 0; i < MouseInfo.getNumberOfButtons(); i++){
  49             buttonDownMasksAPI[i] = InputEvent.getMaskForButton(i+1);
  50             System.out.println("TEST: "+buttonDownMasksAPI[i]);
  51         }
  52 
  53         // getButtonDownMasks()
  54         Object obj = AccessController.doPrivileged(
  55                                             new PrivilegedAction() {
  56                                                 public Object run() {
  57                                                     try {
  58                                                         Class clazz = Class.forName("java.awt.event.InputEvent");
  59                                                         Method method  = clazz.getDeclaredMethod("getButtonDownMasks",new Class [] {});
  60                                                         if (method != null) {
  61                                                             method.setAccessible(true);
  62                                                             return method.invoke(null, (Object[])null);
  63                                                         }
  64                                                     }catch (Exception e){
  65                                                         throw new RuntimeException("Test failed. Exception occured:", e);
  66                                                     }
  67                                                     return null;
  68                                                 }
  69                                             });
  70 
  71         int [] buttonDownMasks = new int [Array.getLength(obj)];
  72         checkNullAndPutValuesToArray(buttonDownMasks, obj);
  73 
  74         //check lengths: array shouldn't contain less elements then the number of buttons on a mouse
  75         if (buttonDownMasks.length < buttonDownMasksAPI.length){
  76             throw new RuntimeException("Test failed. The lengths array is less then the number of buttons");
  77         }
  78 
  79         // verify values for first three buttons
  80         for (int i = 0; i < 3; i++) {
  81             if (eventDownMask[i] != buttonDownMasks[i])
  82             {
  83                 System.out.println("Test : "+ i + " | " + " | " +eventDownMask[i] + " | "+ buttonDownMasks[i]);
  84                 throw new RuntimeException("Failure: masks are not correct for standard buttons");
  85             }
  86         }
  87 
  88         // verify values for extra buttons if any
  89         for (int i = 3; i < MouseInfo.getNumberOfButtons(); i++) {
  90             if (buttonDownMasksAPI[i] != buttonDownMasks[i]) {
  91                 throw new RuntimeException("Failure: masks are not the same for extra buttons");
  92             }
  93         }
  94         System.out.println("Test passed.");
  95     }
  96 
  97     public static void checkNullAndPutValuesToArray(int [] array, Object obj){
  98         if (obj == null){
  99             throw new RuntimeException("Test failed. The array obtained via reflection is "+obj);
 100         }
 101 
 102         for (int i = 0; i < Array.getLength(obj); i++){
 103             System.out.println("Test (Reflection): "+ Array.getInt(obj, i));
 104             array[i] = Array.getInt(obj, i);
 105         }
 106     }
 107 }