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 * Copyright (c) 2015, 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

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 */

/**

 * @test @summary setAlwaysOnTop doesn't behave correctly in Linux/Solaris under

 *                certain scenarios

 * @bug 8021961

 * @author Semyon Sadetsky

 * @run main ChildAlwaysOnTopTest

 */

import javax.swing.*;

import java.awt.*;

public class ChildAlwaysOnTopTest {

    private static Window win1;

    private static Window win2;

    private static Point point;

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

        if( Toolkit.getDefaultToolkit().isAlwaysOnTopSupported() ) {

            test(null);

            Window f = new Frame();

            f.setBackground(Color.darkGray);

            f.setSize(500, 500);

            try {

                test(f);

            } finally {

                f.dispose();

            }

            f = new Frame();

            f.setBackground(Color.darkGray);

            f.setSize(500, 500);

            f.setVisible(true);

            f = new Dialog((Frame)f);

            try {

                test(f);

            } finally {

                ((Frame)f.getParent()).dispose();

            }

        }

        System.out.println("ok");

    }

    public static void test(Window parent) throws Exception {

        SwingUtilities.invokeAndWait(new Runnable() {

            @Override

            public void run() {

                win1 = parent == null ? new JDialog() : new JDialog(parent);

                win1.setName("top");

                win2 = parent == null ? new JDialog() : new JDialog(parent);

                win2.setName("behind");

                win1.setSize(200, 200);

                Panel panel = new Panel();

                panel.setBackground(Color.GREEN);

                win1.add(panel);

                panel = new Panel();

                panel.setBackground(Color.RED);

                win2.add(panel);

                win1.setAlwaysOnTop(true);

                win2.setAlwaysOnTop(false);

                win1.setVisible(true);

            }

        });

        Robot robot = new Robot();

        robot.delay(200);

        robot.waitForIdle();

        SwingUtilities.invokeAndWait(new Runnable() {

            @Override

            public void run() {

                point = win1.getLocationOnScreen();

                win2.setBounds(win1.getBounds());

                win2.setVisible(true);

            }

        });

        robot.delay(200);

        robot.waitForIdle();

        Color color = robot.getPixelColor(point.x + 100, point.y + 100);

        if(!color.equals(Color.GREEN)) {

            win1.dispose();

            win2.dispose();

            throw new RuntimeException("alawaysOnTop window is sent back by " +

                    "another child window setVisible(). " + color);

        }

        SwingUtilities.invokeAndWait(new Runnable() {

            @Override

            public void run() {

                win2.toFront();

                if (parent != null) {

                    parent.setLocation(win1.getLocation());

                    parent.toFront();

                }

            }

        });

        robot.delay(200);

        robot.waitForIdle();

        color = robot.getPixelColor(point.x + 100, point.y + 100);

        if(!color.equals(Color.GREEN)) {

            win1.dispose();

            win2.dispose();

            throw new RuntimeException("alawaysOnTop window is sent back by " +

                    "another child window toFront(). " + color);

        }

        SwingUtilities.invokeAndWait(new Runnable() {

            @Override

            public void run() {

                win1.setAlwaysOnTop(false);

                if (parent != null) {

                    parent.setVisible(false);

                    parent.setVisible(true);

                }

                win2.toFront();

            }

        });

        robot.delay(200);

        robot.waitForIdle();

        color = robot.getPixelColor(point.x + 100, point.y + 100);

        if(!color.equals(Color.RED)) {

            throw new RuntimeException("Failed to unset alawaysOnTop " + color);

        }

        win1.dispose();

        win2.dispose();

    }

}