/*

 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/* @test

 * @bug 8074883

 * @summary Tab key should move to focused button in a button group

 * @run main ButtonGroupFocusTest

 */

import javax.swing.*;

import java.awt.*;

import java.awt.event.KeyEvent;

public class ButtonGroupFocusTest {

    private static JRadioButton button1;

    private static JRadioButton button2;

    private static JRadioButton button3;

    private static JRadioButton button4;

    private static JRadioButton button5;

    private static Robot robot;

    private static JFrame frame;

    public static void main(String[] args) throws Exception {

        robot = new Robot();

        robot.setAutoDelay(100);

        SwingUtilities.invokeAndWait(() -> {

            frame = new JFrame();

            Container contentPane = frame.getContentPane();

            contentPane.setLayout(new FlowLayout());

            button1 = new JRadioButton("Button 1");

            contentPane.add(button1);

            button2 = new JRadioButton("Button 2");

            contentPane.add(button2);

            button3 = new JRadioButton("Button 3");

            contentPane.add(button3);

            button4 = new JRadioButton("Button 4");

            contentPane.add(button4);

            button5 = new JRadioButton("Button 5");

            contentPane.add(button5);

            ButtonGroup group = new ButtonGroup();

            group.add(button1);

            group.add(button2);

            group.add(button3);

            group = new ButtonGroup();

            group.add(button4);

            group.add(button5);

            button2.setSelected(true);

            frame.pack();

            frame.setVisible(true);

        });

        robot.waitForIdle();

        robot.delay(200);

        SwingUtilities.invokeAndWait(() -> {

            if( !button2.hasFocus() ) {

                frame.dispose();

                throw new RuntimeException(

                        "Button 2 should get focus after activation");

            }

        });

        robot.keyPress(KeyEvent.VK_TAB);

        robot.keyRelease(KeyEvent.VK_TAB);

        robot.waitForIdle();

        robot.delay(200);

        SwingUtilities.invokeAndWait(() -> {

            if( !button4.hasFocus() ) {

                frame.dispose();

                throw new RuntimeException(

                        "Button 4 should get focus");

            }

            button3.setSelected(true);

        });

        robot.keyPress(KeyEvent.VK_TAB);

        robot.keyRelease(KeyEvent.VK_TAB);

        robot.waitForIdle();

        robot.delay(200);

        SwingUtilities.invokeAndWait(() -> {

            if( !button3.hasFocus() ) {

                frame.dispose();

                throw new RuntimeException(

                        "selected Button 3 should get focus");

            }

        });

        SwingUtilities.invokeLater(frame::dispose);

    }

}