1 /*
2  * Copyright (c) 1998, 2018, 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 import java.awt.Button;
24 import java.awt.Frame;
25 import java.awt.Rectangle;
26 import java.awt.Robot;
27 
28 import jdk.test.lib.Platform;
29 
30 /*
31  * @test 1.2 98/08/05
32  * @key headful
33  * @bug 4373478 8079255
34  * @summary Test mouse wheel functionality of Robot
35  * @author bchristi: area=Robot
36  * @library /test/lib
37  * @build jdk.test.lib.Platform
38  * @run main RobotWheelTest
39  */
40 public class RobotWheelTest {
41 
42     private static final int NUMTESTS = 20;
43     private static volatile int wheelRotation;
44 
main(String[] args)45     public static void main(String[] args) throws Exception {
46 
47         Frame frame = null;
48         try {
49             int wheelSign = Platform.isOSX() ? -1 : 1;
50 
51             frame = new Frame();
52             frame.setSize(200, 200);
53             Button button = new Button("WheelButton");
54             button.addMouseWheelListener(e -> wheelRotation = e.getWheelRotation());
55             frame.add(button);
56             frame.setVisible(true);
57 
58             Robot robot = new Robot();
59             robot.setAutoDelay(100);
60             robot.waitForIdle();
61 
62             Rectangle bounds = frame.getBounds();
63             int centerX = bounds.x + bounds.width / 2;
64             int centerY = bounds.y + bounds.height / 2;
65             robot.mouseMove(centerX, centerY);
66             robot.waitForIdle();
67 
68             for (int i = -NUMTESTS; i <= NUMTESTS; i++) {
69                 if (i == 0) {
70                     continue;
71                 }
72                 robot.mouseWheel(i);
73                 robot.waitForIdle();
74                 if (i != wheelSign * wheelRotation) {
75                     throw new RuntimeException("wheelRotation = " + wheelRotation
76                             + ", expected value = " + i);
77                 }
78             }
79         } finally {
80             if (frame != null) {
81                 frame.dispose();
82             }
83         }
84     }
85 }
86