1 /*
   2  * Copyright (c) 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.
   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
  26  * @bug 8155197
  27  * @summary Tests whether the value of mostRecentFocusOwner for a window is correct, if
  28  *          another window is displayed during focus transition
  29  * @key headful
  30  * @library ../../regtesthelpers
  31  * @build Util
  32  * @run main FocusTransitionTest
  33  */
  34 
  35 import java.awt.Button;
  36 import java.awt.Component;
  37 import java.awt.Dialog;
  38 import java.awt.FlowLayout;
  39 import java.awt.Frame;
  40 import java.awt.Robot;
  41 import java.awt.TextField;
  42 import java.awt.event.ActionEvent;
  43 import java.awt.event.ActionListener;
  44 
  45 import test.java.awt.regtesthelpers.Util;
  46 
  47 public class FocusTransitionTest {
  48     private static Frame frame;
  49     private static TextField textField1;
  50     private static Button button;
  51 
  52     public static void main(String[] args) throws InterruptedException {
  53         try {
  54             Robot robot = Util.createRobot();
  55 
  56             createAndShowGUI();
  57             Util.waitForIdle(robot);
  58 
  59             for (int i = 0; i < 100; i++) {
  60                 Util.clickOnComp(button, robot);
  61 
  62                 synchronized (frame) {
  63                     frame.wait();
  64                 }
  65                 Util.waitForIdle(robot);
  66 
  67                 Component focusOwner = frame.getMostRecentFocusOwner();
  68                 if (focusOwner != textField1) {
  69                     throw new RuntimeException("Test FAILED: incorrect focus owner!");
  70                 }
  71             }
  72         } finally {
  73             if (frame != null) {
  74                 frame.dispose();
  75             }
  76         }
  77     }
  78 
  79     private static void createAndShowGUI() {
  80         frame = new Frame("Test Frame");
  81 
  82         textField1 = new TextField(5);
  83 
  84         button = new Button("Go");
  85         button.addActionListener(new ActionListener() {
  86             @Override
  87             public void actionPerformed(ActionEvent e) {
  88                 textField1.requestFocusInWindow();
  89                 startUpdate();
  90             }
  91         });
  92 
  93         frame.setLayout(new FlowLayout());
  94         frame.setSize(400, 200);
  95         frame.add(textField1);
  96         frame.add(new TextField(5));
  97         frame.add(new TextField(5));
  98         frame.add(button);
  99         frame.setVisible(true);
 100     }
 101 
 102     private static void startUpdate() {
 103         UpdateThread updateThread = new UpdateThread(frame, 10);
 104         updateThread.start();
 105     }
 106 }
 107 
 108 class UpdateThread extends Thread {
 109     private final Frame frame;
 110     private final int delay;
 111 
 112     UpdateThread(Frame frame, int delay) {
 113         this.frame = frame;
 114         this.delay = delay;
 115     }
 116 
 117     @Override
 118     public void run() {
 119         Dialog dialog = new Dialog(frame);
 120         dialog.setSize(300, 100);
 121         dialog.setVisible(true);
 122 
 123         try {
 124             sleep(delay);
 125         } catch (InterruptedException ie) {
 126             ie.printStackTrace();
 127         }
 128 
 129         dialog.setVisible(false);
 130         dialog.dispose();
 131 
 132         synchronized (frame) {
 133             frame.notify();
 134         }
 135     }
 136 }
 137