--- /dev/null 2014-03-07 17:35:07.062688193 +0400 +++ new/test/sun/awt/dnd/8024061/bug8024061.java 2014-04-10 11:15:23.213274082 +0400 @@ -0,0 +1,357 @@ +/* + * Copyright (c) 2014, 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. + */ + +/* @test + * @bug 8024061 + * @summary Checks that no exception is thrown if dragGestureRecognized + * takes a while to complete. + */ +import sun.awt.OSInfo; +import sun.awt.OSInfo.OSType; +import sun.awt.SunToolkit; + +import java.awt.*; +import java.awt.datatransfer.DataFlavor; +import java.awt.datatransfer.Transferable; +import java.awt.datatransfer.UnsupportedFlavorException; +import java.awt.dnd.DnDConstants; +import java.awt.dnd.DragGestureEvent; +import java.awt.dnd.DragGestureListener; +import java.awt.dnd.DragSource; +import java.awt.dnd.DragSourceDragEvent; +import java.awt.dnd.DragSourceDropEvent; +import java.awt.dnd.DragSourceEvent; +import java.awt.dnd.DragSourceListener; +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.io.IOException; +import java.lang.reflect.InvocationTargetException; +import java.util.concurrent.CountDownLatch; +import java.util.concurrent.TimeUnit; + +import javax.swing.*; + +/** + * If dragGestureRecognized() takes a while to complete and if user performs a drag quickly, + * an exception is thrown from DropTargetListener.dragEnter when it calls + * DropTargetDragEvent.getTransferable(). + *

+ * This class introduces a delay in dragGestureRecognized() to cause the exception. + */ +public class bug8024061 { + private static final DataFlavor DropObjectFlavor; + private static final int DELAY = 1000; + + private final DnDPanel panel1 = new DnDPanel(Color.yellow); + private final DnDPanel panel2 = new DnDPanel(Color.pink); + private final JFrame frame; + + private static final CountDownLatch lock = new CountDownLatch(1); + private static volatile Exception dragEnterException = null; + + static { + DataFlavor flavor = null; + try { + flavor = new DataFlavor(DataFlavor.javaJVMLocalObjectMimeType); + } catch (ClassNotFoundException e) { + e.printStackTrace(); + } + DropObjectFlavor = flavor; + } + + bug8024061() { + frame = new JFrame("DnDWithRobot"); + frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); + + Dimension d = new Dimension(100, 100); + + panel1.setPreferredSize(d); + panel2.setPreferredSize(d); + + Container content = frame.getContentPane(); + content.setLayout(new GridLayout(1, 2, 5, 5)); + content.add(panel1); + content.add(panel2); + + frame.pack(); + + DropObject drop = new DropObject(); + drop.place(panel1, new Point(10, 10)); + frame.setVisible(true); + } + + public static void main(String[] args) throws AWTException, InvocationTargetException, InterruptedException { + OSType type = OSInfo.getOSType(); + if (type != OSType.LINUX && type != OSType.SOLARIS) { + System.out.println("This test is for Linux and Solaris only... " + + "skipping!"); + return; + } + + final bug8024061[] dnd = {null}; + SwingUtilities.invokeAndWait(new Runnable() { + @Override + public void run() { + dnd[0] = new bug8024061(); + } + }); + final Robot robot = new Robot(); + robot.setAutoDelay(10); + SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit(); + toolkit.realSync(); + + JFrame frame = dnd[0].frame; + Point point = frame.getLocationOnScreen(); + Point here = new Point(point.x + 35, point.y + 45); + Point there = new Point(point.x + 120, point.y + 45); + here.x += 25; + robot.mouseMove(here.x, here.y); + robot.mousePress(InputEvent.BUTTON1_MASK); + while (here.x < there.x) { + here.x += 20; + robot.mouseMove(here.x, here.y); + System.out.println("x = " + here.x); + } + robot.mouseRelease(InputEvent.BUTTON1_MASK); + toolkit.realSync(); + robot.mousePress(InputEvent.BUTTON1_MASK); + robot.mouseRelease(InputEvent.BUTTON1_MASK); + System.out.println("finished"); + + try { + if (lock.await(5, TimeUnit.SECONDS)) { + if (dragEnterException == null) { + System.out.println("Test passed."); + } else { + System.out.println("Test failed."); + dragEnterException.printStackTrace(); + throw new RuntimeException(dragEnterException); + } + } else { + System.out.println("Test failed. Timeout reached"); + throw new RuntimeException("Timed out waiting for dragEnter()"); + } + } finally { + frame.dispose(); + } + } + + class DropObject implements Transferable { + DnDPanel panel; + Color color = Color.CYAN; + int width = 50; + int height = 50; + int x; + int y; + + void draw(Graphics2D g) { + Color savedColor = g.getColor(); + g.setColor(color); + g.fillRect(x, y, width, height); + g.setColor(Color.lightGray); + g.drawRect(x, y, width, height); + g.setColor(savedColor); + } + + boolean contains(int x, int y) { + return (x > this.x && x < this.x + width) + && (y > this.y && y < this.y + height); + } + + @Override + public DataFlavor[] getTransferDataFlavors() { + return new DataFlavor[]{DropObjectFlavor}; + } + + void place(DnDPanel panel, Point location) { + if (panel != this.panel) { + x = location.x; + y = location.y; + if (this.panel != null) { + this.panel.setDropObject(null); + this.panel.repaint(); + } + this.panel = panel; + this.panel.setDropObject(this); + this.panel.repaint(); + } + } + + @Override + public boolean isDataFlavorSupported(DataFlavor flavor) { + return DropObjectFlavor.equals(flavor); + } + + @Override + public Object getTransferData(DataFlavor flavor) + throws UnsupportedFlavorException, IOException { + if (isDataFlavorSupported(flavor)) { + return this; + } else { + throw new UnsupportedFlavorException(flavor); + } + } + } + + class DnDPanel extends JPanel { + DropObject dropObject; + final DragSource dragSource; + final DropTarget dropTarget; + final Color color; + final DragGestureListener dgListener; + final DragSourceListener dsListener; + final DropTargetListener dtListener; + + DnDPanel(Color color) { + this.color = color; + this.dragSource = DragSource.getDefaultDragSource(); + dgListener = new DragGestureListener() { + @Override + public void dragGestureRecognized(DragGestureEvent dge) { + Point location = dge.getDragOrigin(); + if (dropObject != null && dropObject.contains(location.x, location.y)) { + dragSource.startDrag(dge, DragSource.DefaultCopyNoDrop, dropObject, dsListener); + try { + Thread.sleep(DELAY); + } catch (InterruptedException e) { + } + } + } + }; + + dsListener = new DragSourceListener() { + @Override + public void dragEnter(DragSourceDragEvent dsde) { + } + + @Override + public void dragOver(DragSourceDragEvent dsde) { + } + + @Override + public void dropActionChanged(DragSourceDragEvent dsde) { + } + + @Override + public void dragExit(DragSourceEvent dse) { + } + + @Override + public void dragDropEnd(DragSourceDropEvent dsde) { + } + }; + + dtListener = new DropTargetListener() { + @Override + public void dragEnter(DropTargetDragEvent dtde) { + if (dropObject != null) { + dtde.rejectDrag(); + return; + } + dtde.acceptDrag(DnDConstants.ACTION_MOVE); + try { + Transferable t = dtde.getTransferable(); + Object data = t.getTransferData(DropObjectFlavor); + if (data != null) { + throw new Exception("getTransferData returned non-null"); + } + } catch (Exception e) { + dragEnterException = e; + e.printStackTrace(); + } finally { + lock.countDown(); + } + } + + @Override + public void dragOver(DropTargetDragEvent dtde) { + if (dropObject != null) { + dtde.rejectDrag(); + return; + } + dtde.acceptDrag(DnDConstants.ACTION_MOVE); + } + + @Override + public void dropActionChanged(DropTargetDragEvent dtde) { + } + + @Override + public void dragExit(DropTargetEvent dte) { + } + + @Override + public void drop(DropTargetDropEvent dtde) { + if (dropObject != null) { + dtde.rejectDrop(); + return; + } + try { + dtde.acceptDrop(DnDConstants.ACTION_MOVE); + Transferable t = dtde.getTransferable(); + DropObject dropObject = (DropObject) t.getTransferData(DropObjectFlavor); + Point location = dtde.getLocation(); + dropObject.place(DnDPanel.this, location); + dtde.dropComplete(true); + } catch (Exception e) { + e.printStackTrace(); + } + + } + }; + + dragSource.createDefaultDragGestureRecognizer(this, + DnDConstants.ACTION_MOVE, dgListener); + + dropTarget = new DropTarget(this, DnDConstants.ACTION_MOVE, dtListener, true); + + } + + public void paintComponent(Graphics g) { + super.paintComponent(g); + Color savedColor = g.getColor(); + g.setColor(color); + g.fillRect(0, 0, getWidth(), getHeight()); + g.setColor(savedColor); + if (dropObject != null) { + dropObject.draw((Graphics2D) g); + } + } + + void setDropObject(DropObject dropObject) { + this.dropObject = dropObject; + } + + DropObject findDropObject(int x, int y) { + if (dropObject != null && dropObject.contains(x, y)) { + return dropObject; + } + return null; + } + } +}