/*

 * Copyright (c) 2005, 2018, 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.

 */

/*

*/

import java.awt.*;

import java.awt.event.*;

import java.lang.reflect.*;

    Robot robot;

    boolean focusGained = false;

    final Object monitor = new Object();

    FocusListener listener = new FocusAdapter () {

            public void focusGained(FocusEvent e) {

                System.out.println(e.toString());

                synchronized (monitor) {

                    focusGained = true;

                    monitor.notifyAll();

                }

            }

        };

    public static void main(String[] args) {

        WindowUpdateFocusabilityTest app = new WindowUpdateFocusabilityTest();

        app.init();

        app.start();

    }

    public void init() {

        try {

            robot = new Robot();

        } catch (AWTException e) {

            throw new RuntimeException("Error: couldn't create robot");

        }

    }

    public void start() {

        if ("sun.awt.motif.MToolkit".equals(Toolkit.getDefaultToolkit().getClass().getName())) {

            System.out.println("No testing on Motif.");

            return;

        }

        test(new Frame("Frame owner"));

        Frame dialog_owner = new Frame("dialog's owner");

        test(new Dialog(dialog_owner));

        test(new Dialog(dialog_owner, Dialog.ModalityType.DOCUMENT_MODAL));

        test(new Dialog(dialog_owner, Dialog.ModalityType.APPLICATION_MODAL));

        test(new Dialog(dialog_owner, Dialog.ModalityType.TOOLKIT_MODAL));

        test(new Dialog((Window) null, Dialog.ModalityType.MODELESS));

        test(new Dialog((Window) null, Dialog.ModalityType.DOCUMENT_MODAL));

        test(new Dialog((Window) null, Dialog.ModalityType.APPLICATION_MODAL));

        test(new Dialog((Window) null, Dialog.ModalityType.TOOLKIT_MODAL));

        dialog_owner.dispose();

    }

    private void test(final Window owner)

    {

        Window window0 = new Window(owner); // will not be shown

        Window window1 = new Window(window0);

        Window window2 = new Window(window1);

        Button button1 = new Button("button1");

        Button button2 = new Button("button2");

        button1.addFocusListener(listener);

        button2.addFocusListener(listener);

        owner.setBounds(800, 0, 100, 100);

        window1.setBounds(800, 300, 100, 100);

        window2.setBounds(800, 150, 100, 100);

        window1.add(button1);

        window2.add(button2);

        window2.setVisible(true);

        window1.setVisible(true);

        EventQueue.invokeLater(new Runnable() {

                public void run() {

                    owner.setVisible(true);

                }

            });

        try {

            EventQueue.invokeAndWait(new Runnable() {

                    public void run() {

                        // do nothing just wait until previous invokeLater will be executed

                    }

                });

        } catch (InterruptedException ie) {

            throw new RuntimeException(ie);

        } catch (InvocationTargetException ite) {

            throw new RuntimeException(ite);

        }

        robot.delay(1000);

        clickOn(button1);

        if (!isFocusGained()) {

            throw new RuntimeException("Test failed: window1 is not focusable!");

        }

        focusGained = false;

        clickOn(button2);

        if (!isFocusGained()) {

            throw new RuntimeException("Test failed: window2 is not focusable!");

        }

        System.out.println("Test for " + owner.getName() + " passed.");

        owner.dispose();

    }

    void clickOn(Component c) {

        Point p = c.getLocationOnScreen();

        Dimension d = c.getSize();

        System.out.println("Clicking " + c);

        robot.mouseMove(p.x + (int)(d.getWidth()/2), p.y + (int)(d.getHeight()/2));

        robot.mousePress(InputEvent.BUTTON1_MASK);

        robot.mouseRelease(InputEvent.BUTTON1_MASK);

        waitForIdle();

    }

    void waitForIdle() {

        try {

            robot.waitForIdle();

            robot.delay(50);

            EventQueue.invokeAndWait( new Runnable() {

                    public void run() {} // Dummy implementation

                });

        } catch(InterruptedException ie) {

            System.out.println("waitForIdle, non-fatal exception caught:");

            ie.printStackTrace();

        } catch(InvocationTargetException ite) {

            System.out.println("waitForIdle, non-fatal exception caught:");

            ite.printStackTrace();

        }

    }

    boolean isFocusGained() {

        synchronized (monitor) {

            if (!focusGained) {

                try {

                    monitor.wait(3000);

                } catch (InterruptedException e) {

                    System.out.println("Interrupted unexpectedly!");

                    throw new RuntimeException(e);

                }

            }

        }

        return focusGained;

    }

}