/*

 * 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

 * @key headful

 * @bug 6694823

 * @summary Checks that popup menu cannot be partially hidden

 * by the task bar in applets.

 * @author Mikhail Lapshin

 * @run main bug6694823

 */

import javax.swing.*;

import java.awt.*;

import java.security.Permission;

public class bug6694823 {

    private static JFrame frame;

    private static JPopupMenu popup;

    private static Toolkit toolkit;

    private static Insets screenInsets;

    private static Robot robot;

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

        robot = new Robot();

        toolkit = Toolkit.getDefaultToolkit();

        SwingUtilities.invokeAndWait(new Runnable() {

            public void run() {

                createGui();

            }

        });

        robot.waitForIdle();

        // Get screen insets

        screenInsets = toolkit.getScreenInsets(frame.getGraphicsConfiguration());

        if (screenInsets.bottom == 0) {

            // This test is only for configurations with taskbar on the bottom

            return;

        }

        System.setSecurityManager(new SecurityManager(){

            @Override

            public void checkPermission(Permission perm) {

                if (perm.getName().equals("setWindowAlwaysOnTop") ) {

                    throw new SecurityException();

                }

            }

        });

        // Show popup as if from an applet

        // The popup shouldn't overlap the task bar. It should be shifted up.

        checkPopup();

    }

    private static void createGui() {

        frame = new JFrame();

        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

        frame.setUndecorated(true);

        popup = new JPopupMenu("Menu");

        for (int i = 0; i < 7; i++) {

            popup.add(new JMenuItem("MenuItem"));

        }

        JPanel panel = new JPanel();

        panel.setComponentPopupMenu(popup);

        frame.add(panel);

        frame.setSize(200, 200);

    }

    private static void checkPopup() throws Exception {

        SwingUtilities.invokeAndWait(new Runnable() {

            public void run() {

                // Place frame just above the task bar

                Dimension screenSize = toolkit.getScreenSize();

                frame.setLocation(screenSize.width / 2,

                        screenSize.height - frame.getHeight() - screenInsets.bottom);

                frame.setVisible(true);

            }

        });

        // Ensure frame is visible

        robot.waitForIdle();

        final Point point = new Point();

        SwingUtilities.invokeAndWait(new Runnable() {

            public void run() {

                // Place popup over the task bar

                point.x = 0;

                point.y = frame.getHeight() - popup.getPreferredSize().height + screenInsets.bottom;

                popup.show(frame, point.x, point.y);

            }

        });

        // Ensure popup is visible

        robot.waitForIdle();

        SwingUtilities.invokeAndWait(new Runnable() {

            public void run() {

                Point frameLoc = frame.getLocationOnScreen();

                if (popup.getLocationOnScreen().equals(new Point(frameLoc.x, frameLoc.y + point.y))) {

                    throw new RuntimeException("Popup is not shifted");

                }

                popup.setVisible(false);

                frame.dispose();

            }

        });

    }

}