/*

 * 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

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

 * questions.

 */

import java.awt.Dialog;

import java.awt.Frame;

import java.awt.Point;

import java.awt.Robot;

import java.awt.Window;

import java.awt.datatransfer.DataFlavor;

import java.awt.datatransfer.Transferable;

import java.awt.dnd.DnDConstants;

import java.awt.dnd.DragGestureEvent;

import java.awt.dnd.DragGestureListener;

import java.awt.dnd.DragSource;

import java.awt.dnd.DropTarget;

import java.awt.dnd.DropTargetDragEvent;

import java.awt.dnd.DropTargetDropEvent;

import java.awt.dnd.DropTargetEvent;

import java.awt.dnd.DropTargetListener;

import java.awt.event.InputEvent;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

/*

 * @test

 * @bug 8134917

 * @summary [macosx] JOptionPane doesn't receive mouse events when opened from a drop event

 * @author Alexandr Scherbatiy

 */

public class MissingEventsOnModalDialogTest {

    private static volatile boolean passed = false;

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

        Frame sourceFrame = createFrame("Source Frame", 0, 0);

        Frame targetFrame = createFrame("Target Frame", 250, 250);

        DragSource defaultDragSource

                = DragSource.getDefaultDragSource();

        defaultDragSource.createDefaultDragGestureRecognizer(sourceFrame,

                DnDConstants.ACTION_COPY_OR_MOVE,

                new TestDragGestureListener());

        new DropTarget(targetFrame, DnDConstants.ACTION_COPY_OR_MOVE,

                new TestDropTargetListener(targetFrame));

        Robot robot = new Robot();

        robot.setAutoDelay(50);

        sourceFrame.toFront();

        robot.waitForIdle();

        Point point = getCenterPoint(sourceFrame);

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

        robot.waitForIdle();

        mouseDragAndDrop(robot, point, getCenterPoint(targetFrame));

        long time = System.currentTimeMillis() + 200;

        while (!passed) {

            if (time < System.currentTimeMillis()) {

                sourceFrame.dispose();

                targetFrame.dispose();

                throw new RuntimeException("Mouse clicked event is lost!");

            }

            Thread.sleep(10);

        }

        sourceFrame.dispose();

        targetFrame.dispose();

    }

    private static Frame createFrame(String title, int x, int y) {

        Frame frame = new Frame();

        frame.setSize(200, 200);

        frame.setLocation(x, y);

        frame.setTitle(title);

        frame.setVisible(true);

        return frame;

    }

    private static Point getCenterPoint(Window window) {

        Point centerPoint = window.getLocationOnScreen();

        centerPoint.translate(window.getWidth() / 2, window.getHeight() / 2);

        return centerPoint;

    }

    public static void mouseDragAndDrop(Robot robot, Point from, Point to) {

        mouseDND(robot, from.x, from.y, to.x, to.y);

    }

    public static void mouseDND(Robot robot, int x1, int y1, int x2, int y2) {

        int N = 20;

        int x = x1;

        int y = y1;

        int dx = (x2 - x1) / N;

        int dy = (y2 - y1) / N;

        robot.mousePress(InputEvent.BUTTON1_MASK);

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

            robot.mouseMove(x += dx, y += dy);

        }

        robot.mouseRelease(InputEvent.BUTTON1_MASK);

    }

    private static class TestDragGestureListener implements DragGestureListener {

        public void dragGestureRecognized(DragGestureEvent dge) {

            dge.startDrag(null, new StringTransferable());

        }

    }

    static class StringTransferable implements Transferable {

        @Override

        public DataFlavor[] getTransferDataFlavors() {

            return new DataFlavor[]{DataFlavor.stringFlavor};

        }

        @Override

        public boolean isDataFlavorSupported(DataFlavor flavor) {

            return flavor.equals(DataFlavor.stringFlavor);

        }

        @Override

        public Object getTransferData(DataFlavor flavor) {

            return "Hello World!";

        }

    }

    private static class TestDropTargetListener implements DropTargetListener {

        private final Frame targetFrame;

        public TestDropTargetListener(Frame targetFrame) {

            this.targetFrame = targetFrame;

        }

        @Override

        public void dragEnter(DropTargetDragEvent dtde) {

            dtde.acceptDrag(dtde.getDropAction());

        }

        @Override

        public void dragOver(DropTargetDragEvent dtde) {

            dtde.acceptDrag(dtde.getDropAction());

        }

        @Override

        public void dropActionChanged(DropTargetDragEvent dtde) {

            dtde.acceptDrag(dtde.getDropAction());

        }

        @Override

        public void dragExit(DropTargetEvent dte) {

        }

        @Override

        public void drop(DropTargetDropEvent dtde) {

            dtde.acceptDrop(dtde.getDropAction());

            showModalDialog(targetFrame);

            dtde.dropComplete(true);

        }

    }

    private static void showModalDialog(Frame targetFrame) {

        Dialog dialog = new Dialog(targetFrame, true);

        dialog.addMouseListener(new MouseAdapter() {

            @Override

            public void mouseClicked(MouseEvent e) {

                passed = true;

                dialog.dispose();

            }

        });

        dialog.setSize(400, 300);

        dialog.setTitle("Modal Dialog!");

        clickOnModalDialog(dialog);

        dialog.setVisible(true);

    }

    private static void clickOnModalDialog(Dialog dialog) {

        new Thread(() -> {

            clickOnDialog(dialog);

        }).start();

    }

    private static void clickOnDialog(Dialog dialog) {

        try {

            long time = System.currentTimeMillis() + 200;

            while (!dialog.isVisible()) {

                if (time < System.currentTimeMillis()) {

                    throw new RuntimeException("Dialog is not visible!");

                }

                Thread.sleep(10);

            }

            Point point = getCenterPoint(dialog);

            Robot robot = new Robot();

            robot.setAutoDelay(50);

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

            robot.mousePress(InputEvent.BUTTON1_MASK);

            robot.mouseRelease(InputEvent.BUTTON1_MASK);

        } catch (Exception e) {

            throw new RuntimeException(e);

        }

    }

}