/*

 * Copyright (c) 2005, 2012, 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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 * questions.

 */

/*

 * @test

 * @key headful

 * @bug 7154048

 * @summary Window created under a mouse does not receive mouse enter event.

 *     Mouse Entered/Exited events should be generated during dragging the window

 *     out of the frame and to the frame.

 * @library ../../regtesthelpers

 * @build Util

 * @author alexandr.scherbatiy area=awt.event

 * @run main DragWindowOutOfFrameTest

 */

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import java.util.concurrent.*;

import test.java.awt.regtesthelpers.Util;

public class DragWindowOutOfFrameTest {

    private static volatile int dragWindowMouseEnteredCount = 0;

    private static volatile int dragWindowMouseExitedCount = 0;

    private static volatile int dragWindowMouseReleasedCount = 0;

    private static volatile int buttonMouseEnteredCount = 0;

    private static volatile int buttonMouseExitedCount = 0;

    private static volatile int labelMouseEnteredCount = 0;

    private static volatile int labelMouseExitedCount = 0;

    private static volatile int labelMouseReleasedCount = 0;

    private static MyDragWindow dragWindow;

    private static JLabel label;

    private static JButton button;

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

        Robot robot = new Robot();

        robot.setAutoDelay(50);

        SwingUtilities.invokeAndWait(new Runnable() {

            @Override

            public void run() {

                createAndShowGUI();

            }

        });

        robot.waitForIdle();

        Point pointToClick = Util.invokeOnEDT(new Callable<Point>() {

            @Override

            public Point call() throws Exception {

                return getCenterPoint(label);

            }

        });

        robot.mouseMove(pointToClick.x, pointToClick.y);

        robot.mousePress(InputEvent.BUTTON1_MASK);

        robot.waitForIdle();

        if (dragWindowMouseEnteredCount != 1 && dragWindowMouseExitedCount != 0) {

            throw new RuntimeException(

                    "Wrong number mouse Entered/Exited events on Drag Window!");

        }

        Point pointToDrag = Util.invokeOnEDT(new Callable<Point>() {

            @Override

            public Point call() throws Exception {

                label.addMouseListener(new LabelMouseListener());

                button.addMouseListener(new ButtonMouseListener());

                return getCenterPoint(button);

            }

        });

        robot.mouseMove(450, pointToClick.y);

        robot.waitForIdle();

        if (labelMouseEnteredCount != 0 && labelMouseExitedCount != 1) {

            throw new RuntimeException(

                    "Wrong number Mouse Entered/Exited events on label!");

        }

        robot.mouseMove(450, pointToDrag.y);

        robot.waitForIdle();

        if (labelMouseEnteredCount != 0 && labelMouseExitedCount != 1) {

            throw new RuntimeException(

                    "Wrong number Mouse Entered/Exited events on label!");

        }

        if (buttonMouseEnteredCount != 0 && buttonMouseExitedCount != 0) {

            throw new RuntimeException(

                    "Wrong number Mouse Entered/Exited events on button!");

        }

        robot.mouseMove(pointToDrag.y, pointToDrag.y);

        robot.waitForIdle();

        if (buttonMouseEnteredCount != 1 && buttonMouseExitedCount != 0) {

            throw new RuntimeException(

                    "Wrong number Mouse Entered/Exited events on button!");

        }

        robot.mouseRelease(InputEvent.BUTTON1_MASK);

        robot.waitForIdle();

        if (labelMouseReleasedCount != 1) {

            throw new RuntimeException("No MouseReleased event on label!");

        }

    }

    private static Point getCenterPoint(Component comp) {

        Point p = comp.getLocationOnScreen();

        Rectangle rect = comp.getBounds();

        return new Point(p.x + rect.width / 2, p.y + rect.height / 2);

    }

    private static void createAndShowGUI() {

        JFrame frame = new JFrame("Main Frame");

        frame.setLocation(100, 100);

        frame.setSize(300, 200);

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        label = new JLabel("Label");

        DragWindowCreationMouseListener listener = new DragWindowCreationMouseListener(frame);

        label.addMouseListener(listener);

        label.addMouseMotionListener(listener);

        button = new JButton("Button");

        Panel panel = new Panel(new BorderLayout());

        panel.add(label, BorderLayout.NORTH);

        panel.add(button, BorderLayout.CENTER);

        frame.getContentPane().add(panel);

        frame.setVisible(true);

    }

    private static Point getAbsoluteLocation(MouseEvent e) {

        return new Point(e.getXOnScreen(), e.getYOnScreen());

    }

    static class MyDragWindow extends Window {

        public MyDragWindow(Window parent, Point location) {

            super(parent);

            setSize(500, 300);

            setVisible(true);

            JPanel panel = new JPanel();

            add(panel);

            setLocation(location.x - 250, location.y - 150);

            addMouseListener(new DragWindowMouseListener());

        }

        void dragTo(Point point) {

            setLocation(point.x - 250, point.y - 150);

        }

    }

    static class DragWindowCreationMouseListener extends MouseAdapter {

        Point origin;

        Window parent;

        public DragWindowCreationMouseListener(Window parent) {

            this.parent = parent;

        }

        @Override

        public void mousePressed(MouseEvent e) {

            if (dragWindow == null) {

                dragWindow = new MyDragWindow(parent, getAbsoluteLocation(e));

            } else {

                dragWindow.setVisible(true);

                dragWindow.dragTo(getAbsoluteLocation(e));

            }

        }

        @Override

        public void mouseReleased(MouseEvent e) {

            labelMouseReleasedCount++;

            if (dragWindow != null) {

                dragWindow.setVisible(false);

            }

        }

        public void mouseDragged(MouseEvent e) {

            if (dragWindow != null) {

                dragWindow.dragTo(getAbsoluteLocation(e));

            }

        }

    }

    static class DragWindowMouseListener extends MouseAdapter {

        @Override

        public void mouseEntered(MouseEvent e) {

            dragWindowMouseEnteredCount++;

        }

        @Override

        public void mouseExited(MouseEvent e) {

            dragWindowMouseExitedCount++;

        }

        @Override

        public void mouseReleased(MouseEvent e) {

            dragWindowMouseReleasedCount++;

        }

    }

    static class LabelMouseListener extends MouseAdapter {

        @Override

        public void mouseEntered(MouseEvent e) {

            labelMouseEnteredCount++;

        }

        @Override

        public void mouseExited(MouseEvent e) {

            labelMouseExitedCount++;

        }

    }

    static class ButtonMouseListener extends MouseAdapter {

        @Override

        public void mouseEntered(MouseEvent e) {

            buttonMouseEnteredCount++;

        }

        @Override

        public void mouseExited(MouseEvent e) {

            buttonMouseExitedCount++;

        }

    }

}