1 /*
   2  * Copyright (c) 2016, 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  * @key headful
  27  * @bug 8154043 8172509
  28  * @summary Fields not reachable anymore by tab-key, because of new tabbing
  29  * behaviour of radio button groups.
  30  * @run main ButtonGroupLayoutTraversalTest
  31  */
  32 
  33 import java.awt.BorderLayout;
  34 import java.awt.Color;
  35 import java.awt.GridLayout;
  36 import java.awt.Robot;
  37 import java.awt.event.FocusAdapter;
  38 import java.awt.event.FocusEvent;
  39 import java.awt.event.KeyEvent;
  40 import javax.swing.JFrame;
  41 import javax.swing.SwingUtilities;
  42 import javax.swing.UIManager;
  43 import javax.swing.JPanel;
  44 import javax.swing.ButtonGroup;
  45 import javax.swing.JComponent;
  46 import javax.swing.JRadioButton;
  47 import javax.swing.JToggleButton;
  48 import javax.swing.LayoutFocusTraversalPolicy;
  49 import javax.swing.UnsupportedLookAndFeelException;
  50 
  51 public class ButtonGroupLayoutTraversalTest {
  52 
  53     static int nx = 3;
  54     static int ny = 3;
  55 
  56     static int focusCnt[] = new int[nx * ny];
  57     private static JFrame window;
  58 
  59     public static void main(String[] args) throws Exception {
  60 
  61         SwingUtilities.invokeAndWait(() -> changeLAF());
  62         SwingUtilities.invokeAndWait(() -> initLayout(nx, ny));
  63         Robot robot = new Robot();
  64         robot.setAutoDelay(100);
  65         robot.waitForIdle();
  66         robot.delay(200);
  67 
  68         for (int i = 0; i < nx * ny - nx * ny / 2 - 1; i++) {
  69             robot.keyPress(KeyEvent.VK_RIGHT);
  70             robot.keyRelease(KeyEvent.VK_RIGHT);
  71         }
  72 
  73         for (int i = 0; i < nx * ny / 2; i++) {
  74             robot.keyPress(KeyEvent.VK_TAB);
  75             robot.keyRelease(KeyEvent.VK_TAB);
  76         }
  77 
  78         robot.waitForIdle();
  79         robot.delay(200);
  80 
  81         for (int i = 0; i < nx * ny; i++) {
  82             if (focusCnt[i] < 1) {
  83                 SwingUtilities.invokeLater(window::dispose);
  84                 throw new RuntimeException("Component " + i
  85                         + " is not reachable in the forward focus cycle");
  86             } else if (focusCnt[i] > 1) {
  87                 SwingUtilities.invokeLater(window::dispose);
  88                 throw new RuntimeException("Component " + i
  89                         + " got focus more than once in the forward focus cycle");
  90             }
  91         }
  92 
  93         for (int i = 0; i < nx * ny / 2; i++) {
  94             robot.keyPress(KeyEvent.VK_SHIFT);
  95             robot.keyPress(KeyEvent.VK_TAB);
  96             robot.keyRelease(KeyEvent.VK_TAB);
  97             robot.keyRelease(KeyEvent.VK_SHIFT);
  98         }
  99 
 100         for (int i = 0; i < nx * ny - nx * ny / 2 - 1; i++) {
 101             robot.keyPress(KeyEvent.VK_LEFT);
 102             robot.keyRelease(KeyEvent.VK_LEFT);
 103         }
 104 
 105         robot.keyPress(KeyEvent.VK_SHIFT);
 106         robot.keyPress(KeyEvent.VK_TAB);
 107         robot.keyRelease(KeyEvent.VK_TAB);
 108         robot.keyRelease(KeyEvent.VK_SHIFT);
 109 
 110         robot.waitForIdle();
 111         robot.delay(200);
 112 
 113         for (int i = 0; i < nx * ny; i++) {
 114             if (focusCnt[i] < 2) {
 115                 SwingUtilities.invokeLater(window::dispose);
 116                 throw new RuntimeException("Component " + i
 117                         + " is not reachable in the backward focus cycle");
 118             } else if (focusCnt[i] > 2) {
 119                 SwingUtilities.invokeLater(window::dispose);
 120                 throw new RuntimeException("Component " + i
 121                         + " got focus more than once in the backward focus cycle");
 122             }
 123         }
 124 
 125         SwingUtilities.invokeLater(window::dispose);
 126     }
 127 
 128     private static void changeLAF() {
 129         String currentLAF = UIManager.getLookAndFeel().toString();
 130         currentLAF = currentLAF.toLowerCase();
 131         if (currentLAF.contains("aqua") || currentLAF.contains("nimbus")) {
 132             try {
 133                 UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
 134             } catch (ClassNotFoundException
 135                     | IllegalAccessException
 136                     | InstantiationException
 137                     | UnsupportedLookAndFeelException ex) {
 138                 ex.printStackTrace();
 139             }
 140         }
 141     }
 142 
 143     public static void initLayout(int nx, int ny) {
 144         window = new JFrame("Test");
 145         window.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
 146         JPanel rootPanel = new JPanel();
 147         rootPanel.setLayout(new BorderLayout());
 148         JPanel formPanel = new JPanel(new GridLayout(nx, ny));
 149         formPanel.setFocusTraversalPolicy(new LayoutFocusTraversalPolicy());
 150         formPanel.setFocusCycleRoot(true);
 151         ButtonGroup radioButtonGroup = new ButtonGroup();
 152         for (int i = 0; i < nx * ny; i++) {
 153             JToggleButton comp;
 154             if (i % 2 == 0) {
 155                 comp = new JRadioButton("Grouped component");
 156                 radioButtonGroup.add(comp);
 157             } else {
 158                 comp = new JRadioButton("Single component");
 159             }
 160             formPanel.add(comp);
 161             int fi = i;
 162             comp.setBackground(Color.red);
 163             comp.addFocusListener(new FocusAdapter() {
 164                 @Override
 165                 public void focusGained(FocusEvent e) {
 166                     focusCnt[fi]++;
 167                     if (focusCnt[fi] == 1) {
 168                         ((JComponent) e.getSource())
 169                                 .setBackground(Color.yellow);
 170                     } else if (focusCnt[fi] == 2) {
 171                         ((JComponent) e.getSource())
 172                                 .setBackground(Color.green);
 173                     } else {
 174                         ((JComponent) e.getSource())
 175                                 .setBackground(Color.red);
 176                     }
 177                 }
 178             });
 179         }
 180         rootPanel.add(formPanel, BorderLayout.CENTER);
 181         window.add(rootPanel);
 182         window.pack();
 183         window.setVisible(true);
 184     }
 185 }