368 lines
12 KiB
Java
368 lines
12 KiB
Java
/*
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* Copyright (c) 2000, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.awt.Button;
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import java.awt.Component;
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import java.awt.Dimension;
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import java.awt.EventQueue;
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import java.awt.Frame;
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import java.awt.GridLayout;
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import java.awt.Panel;
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import java.awt.Point;
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import java.awt.Robot;
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import java.awt.datatransfer.DataFlavor;
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import java.awt.datatransfer.Transferable;
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import java.awt.datatransfer.UnsupportedFlavorException;
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import java.awt.dnd.DnDConstants;
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import java.awt.dnd.DragGestureEvent;
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import java.awt.dnd.DragGestureListener;
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import java.awt.dnd.DragSource;
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import java.awt.dnd.DragSourceDragEvent;
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import java.awt.dnd.DragSourceDropEvent;
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import java.awt.dnd.DragSourceEvent;
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import java.awt.dnd.DragSourceListener;
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import java.awt.dnd.DropTarget;
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import java.awt.dnd.DropTargetContext;
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import java.awt.dnd.DropTargetDragEvent;
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import java.awt.dnd.DropTargetDropEvent;
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import java.awt.dnd.DropTargetEvent;
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import java.awt.dnd.DropTargetListener;
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import java.awt.event.InputEvent;
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import java.awt.event.KeyEvent;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.Serializable;
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/*
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@test
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@bug 4338893
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@summary tests that dnd between two different VMs doesn't cause hang
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on the dropping side.
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@key headful
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@run main/timeout=120 DroppingVMHangTest
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*/
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public class DroppingVMHangTest {
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public static final int CODE_NOT_RETURNED = -1;
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public static final int CODE_OK = 0;
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public static final int CODE_FAILURE = 1;
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public static final int CODE_HANG_FAILURE = 2;
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public static final int CODE_OTHER_FAILURE = 3;
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public static final int CODE_TIMEOUT = 4;
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public static final int FRAME_ACTIVATION_TIMEOUT = 2000;
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private int returnCode = CODE_NOT_RETURNED;
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volatile Frame frame;
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volatile Point p;
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volatile Dimension d;
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Robot robot = null;
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public static void main(String[] args) throws Exception {
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DroppingVMHangTest test = new DroppingVMHangTest();
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if (args.length > 0) {
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test.run(args);
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} else {
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EventQueue.invokeAndWait(test::init);
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try {
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test.start();
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} finally {
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EventQueue.invokeAndWait(() -> {
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if (test.frame != null) {
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test.frame.dispose();
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}
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});
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}
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}
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}
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public void run(String[] args) {
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try {
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frame = new Frame();
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frame.setTitle("DroppingVMHangTest DropTarget frame");
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frame.setLocation(300, 400);
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frame.add(new DropTargetPanel());
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frame.pack();
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frame.setVisible(true);
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Thread.sleep(FRAME_ACTIVATION_TIMEOUT);
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if (args.length != 2) {
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throw new RuntimeException("Incorrect number of arguments for child:" +
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args.length);
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}
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int x = Integer.parseInt(args[0], 10);
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int y = Integer.parseInt(args[1], 10);
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Point sourcePoint = new Point(x, y);
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Point targetPoint = frame.getLocationOnScreen();
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Dimension d = frame.getSize();
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targetPoint.translate(d.width / 2, d.height / 2);
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robot = new Robot();
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robot.mouseMove(x, y);
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robot.keyPress(KeyEvent.VK_CONTROL);
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robot.mousePress(InputEvent.BUTTON1_MASK);
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while (!sourcePoint.equals(targetPoint)) {
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robot.mouseMove(sourcePoint.x, sourcePoint.y);
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Thread.sleep(10);
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int dx = sign(targetPoint.x - sourcePoint.x);
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int dy = sign(targetPoint.y - sourcePoint.y);
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sourcePoint.translate(dx, dy);
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}
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robot.mouseRelease(InputEvent.BUTTON1_MASK);
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robot.keyRelease(KeyEvent.VK_CONTROL);
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Thread.sleep(5000);
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System.exit(DroppingVMHangTest.CODE_TIMEOUT);
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} catch (Throwable e) {
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e.printStackTrace();
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System.exit(DroppingVMHangTest.CODE_OTHER_FAILURE);
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}
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}
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static int sign(int n) {
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return n > 0 ? 1 : n < 0 ? -1 : 0;
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}
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public void init() {
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frame = new Frame();
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frame.setTitle("DragSource frame");
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frame.setLocation(10, 200);
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frame.add(new DragSourcePanel());
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frame.pack();
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frame.setVisible(true);
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}
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public void start() throws Exception {
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Thread.sleep(FRAME_ACTIVATION_TIMEOUT);
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EventQueue.invokeAndWait(() -> {
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p = frame.getLocationOnScreen();
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d = frame.getSize();
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});
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p.translate(d.width / 2, d.height / 2);
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String javaPath = System.getProperty("java.home", "");
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String command = javaPath + File.separator + "bin" +
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File.separator + "java -cp " + System.getProperty("test.classes", ".") +
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" DroppingVMHangTest" + " " + p.x + " " + p.y;
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Process process = Runtime.getRuntime().exec(command);
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returnCode = process.waitFor();
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InputStream errorStream = process.getErrorStream();
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int count = errorStream.available();
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if (count > 0) {
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byte[] b = new byte[count];
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errorStream.read(b);
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System.err.println("========= Child VM System.err ========");
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System.err.print(new String(b));
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System.err.println("======================================");
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}
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switch (returnCode) {
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case CODE_NOT_RETURNED:
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System.err.println("Child VM: failed to start");
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break;
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case CODE_OK:
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System.err.println("Child VM: normal termination");
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break;
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case CODE_FAILURE:
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System.err.println("Child VM: abnormal termination");
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break;
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case CODE_HANG_FAILURE:
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System.err.println("Child VM: hang on drop");
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break;
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case CODE_OTHER_FAILURE:
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System.err.println("Child VM: other failure");
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break;
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case CODE_TIMEOUT:
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System.err.println("Child VM: failed to simulate drag-and-drop operation with Robot");
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break;
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}
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if (returnCode != CODE_OK && returnCode != CODE_TIMEOUT) {
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throw new RuntimeException("The test failed.");
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}
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}
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}
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class DragSourceButton extends Button implements Serializable,
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Transferable,
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DragGestureListener,
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DragSourceListener {
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private transient final DataFlavor dataflavor =
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new DataFlavor(DragSourceButton.class, "DragSourceButton");
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public DragSourceButton() {
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this("DragSourceButton");
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}
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public DragSourceButton(String str) {
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super(str);
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DragSource ds = DragSource.getDefaultDragSource();
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ds.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_COPY,
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this);
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}
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public void dragGestureRecognized(DragGestureEvent dge) {
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dge.startDrag(null, this, this);
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}
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public void dragEnter(DragSourceDragEvent dsde) {}
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public void dragExit(DragSourceEvent dse) {}
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public void dragOver(DragSourceDragEvent dsde) {}
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public void dragDropEnd(DragSourceDropEvent dsde) {}
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public void dropActionChanged(DragSourceDragEvent dsde) {}
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public Object getTransferData(DataFlavor flavor)
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throws UnsupportedFlavorException, IOException {
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if (!isDataFlavorSupported(flavor)) {
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throw new UnsupportedFlavorException(flavor);
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}
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Object retObj = null;
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ByteArrayOutputStream baoStream = new ByteArrayOutputStream();
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ObjectOutputStream ooStream = new ObjectOutputStream(baoStream);
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ooStream.writeObject(this);
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ByteArrayInputStream baiStream = new ByteArrayInputStream(baoStream.toByteArray());
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ObjectInputStream ois = new ObjectInputStream(baiStream);
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try {
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retObj = ois.readObject();
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} catch (ClassNotFoundException e) {
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e.printStackTrace();
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throw new RuntimeException(e.toString());
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}
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return retObj;
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}
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public DataFlavor[] getTransferDataFlavors() {
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return new DataFlavor[] { dataflavor };
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}
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public boolean isDataFlavorSupported(DataFlavor dflavor) {
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return dataflavor.equals(dflavor);
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}
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}
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class DragSourcePanel extends Panel {
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final Dimension preferredDimension = new Dimension(200, 200);
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public DragSourcePanel() {
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setLayout(new GridLayout(1, 1));
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add(new DragSourceButton());
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}
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public Dimension getPreferredSize() {
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return preferredDimension;
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}
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}
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class DropTargetPanel extends Panel implements DropTargetListener,
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Runnable {
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final Dimension preferredDimension = new Dimension(200, 200);
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public DropTargetPanel() {
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setDropTarget(new DropTarget(this, this));
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}
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public Dimension getPreferredSize() {
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return preferredDimension;
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}
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public void dragEnter(DropTargetDragEvent dtde) {
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dtde.acceptDrag(DnDConstants.ACTION_COPY);
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}
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public void dragExit(DropTargetEvent dte) {}
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public void dragOver(DropTargetDragEvent dtde) {
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dtde.acceptDrag(DnDConstants.ACTION_COPY);
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}
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public void drop(DropTargetDropEvent dtde) {
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DropTargetContext dtc = dtde.getDropTargetContext();
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if ((dtde.getSourceActions() & DnDConstants.ACTION_COPY) != 0) {
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dtde.acceptDrop(DnDConstants.ACTION_COPY);
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} else {
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dtde.rejectDrop();
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System.exit(DroppingVMHangTest.CODE_OTHER_FAILURE);
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}
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DataFlavor[] dfs = dtde.getCurrentDataFlavors();
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Component comp = null;
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if (dfs != null && dfs.length >= 1) {
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Transferable transfer = dtde.getTransferable();
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try {
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comp = (Component)transfer.getTransferData(dfs[0]);
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comp.getClass();
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} catch (Throwable e) {
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e.printStackTrace();
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dtc.dropComplete(false);
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System.exit(DroppingVMHangTest.CODE_OTHER_FAILURE);
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}
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}
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dtc.dropComplete(true);
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Thread thread = new Thread(this);
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thread.start();
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add(comp);
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System.exit(DroppingVMHangTest.CODE_OK);
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}
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public void dropActionChanged(DropTargetDragEvent dtde) {}
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public void run() {
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try {
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Thread.sleep(60000);
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} catch (InterruptedException e) {
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}
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Runtime.getRuntime().halt(DroppingVMHangTest.CODE_HANG_FAILURE);
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}
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}
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