1 /*
2  * Copyright (c) 2008, 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.
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   @modules java.desktop/java.awt.event:open
31   @run main ButtonArraysEquality
32  */
33 
34 import java.awt.*;
35 import java.awt.event.*;
36 import java.lang.reflect.*;
37 import java.security.AccessController;
38 import java.security.PrivilegedAction;
39 
40 // get array InputEvent.BUTTON_MASK via reflection
41 // get array InputEvent.BUTTON_DOWN_MASK via reflection
42 // compare their lengths and values
43 
44 public class ButtonArraysEquality {
45     static int [] eventDownMask = new int []{InputEvent.BUTTON1_DOWN_MASK, InputEvent.BUTTON2_DOWN_MASK, InputEvent.BUTTON3_DOWN_MASK};
46 
main(String []s)47     public static void main(String []s){
48         int [] buttonDownMasksAPI = new int [MouseInfo.getNumberOfButtons()];
49         for (int i = 0; i < MouseInfo.getNumberOfButtons(); i++){
50             buttonDownMasksAPI[i] = InputEvent.getMaskForButton(i+1);
51             System.out.println("TEST: "+buttonDownMasksAPI[i]);
52         }
53 
54         // getButtonDownMasks()
55         Object obj = AccessController.doPrivileged(
56                                             new PrivilegedAction() {
57                                                 public Object run() {
58                                                     try {
59                                                         Class clazz = Class.forName("java.awt.event.InputEvent");
60                                                         Method method  = clazz.getDeclaredMethod("getButtonDownMasks",new Class [] {});
61                                                         if (method != null) {
62                                                             method.setAccessible(true);
63                                                             return method.invoke(null, (Object[])null);
64                                                         }
65                                                     }catch (Exception e){
66                                                         throw new RuntimeException("Test failed. Exception occured:", e);
67                                                     }
68                                                     return null;
69                                                 }
70                                             });
71 
72         int [] buttonDownMasks = new int [Array.getLength(obj)];
73         checkNullAndPutValuesToArray(buttonDownMasks, obj);
74 
75         //check lengths: array shouldn't contain less elements then the number of buttons on a mouse
76         if (buttonDownMasks.length < buttonDownMasksAPI.length){
77             throw new RuntimeException("Test failed. The lengths array is less than the number of buttons");
78         }
79 
80         // verify values for first three buttons
81         for (int i = 0; i < 3; i++) {
82             if (eventDownMask[i] != buttonDownMasks[i])
83             {
84                 System.out.println("Test : "+ i + " | " + " | " +eventDownMask[i] + " | "+ buttonDownMasks[i]);
85                 throw new RuntimeException("Failure: masks are not correct for standard buttons");
86             }
87         }
88 
89         // verify values for extra buttons if any
90         for (int i = 3; i < MouseInfo.getNumberOfButtons(); i++) {
91             if (buttonDownMasksAPI[i] != buttonDownMasks[i]) {
92                 throw new RuntimeException("Failure: masks are not the same for extra buttons");
93             }
94         }
95         System.out.println("Test passed.");
96     }
97 
checkNullAndPutValuesToArray(int [] array, Object obj)98     public static void checkNullAndPutValuesToArray(int [] array, Object obj){
99         if (obj == null){
100             throw new RuntimeException("Test failed. The array obtained via reflection is "+obj);
101         }
102 
103         for (int i = 0; i < Array.getLength(obj); i++){
104             System.out.println("Test (Reflection): "+ Array.getInt(obj, i));
105             array[i] = Array.getInt(obj, i);
106         }
107     }
108 }
109