409 lines
13 KiB
Java
409 lines
13 KiB
Java
/*
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* Copyright (c) 2003, 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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/*
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@test
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@bug 4913349
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@summary verifies that AWT_LOCK is properly taken during DnD
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@key headful
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@run main DnDAWTLockTest
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*/
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import java.awt.AWTEvent;
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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.Panel;
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import java.awt.Point;
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import java.awt.Robot;
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import java.awt.Toolkit;
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import java.awt.datatransfer.Clipboard;
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import java.awt.datatransfer.ClipboardOwner;
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import java.awt.datatransfer.DataFlavor;
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import java.awt.datatransfer.StringSelection;
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import java.awt.datatransfer.Transferable;
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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.DragGestureRecognizer;
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import java.awt.dnd.DragSource;
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import java.awt.dnd.DropTarget;
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import java.awt.dnd.DropTargetAdapter;
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import java.awt.dnd.DropTargetDropEvent;
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import java.awt.dnd.DropTargetListener;
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import java.awt.event.AWTEventListener;
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import java.awt.event.InputEvent;
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import java.awt.event.MouseEvent;
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import java.io.File;
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import java.io.InputStream;
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import java.util.StringTokenizer;
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public class DnDAWTLockTest implements ClipboardOwner {
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public static final int STARTUP_TIMEOUT = 2000;
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volatile Frame frame;
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static final Clipboard clipboard =
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Toolkit.getDefaultToolkit().getSystemClipboard();
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volatile Process process = null;
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volatile Point sourcePoint = null;
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public static void main(String[] args) throws Exception {
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DnDAWTLockTest test = new DnDAWTLockTest();
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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(() -> test.frame.dispose());
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}
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}
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public void init() {
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frame = new Frame("Drop target frame");
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frame.setLocation(200, 200);
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Panel panel = new DragSourcePanel();
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frame.add(panel);
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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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String stderr = null;
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Robot robot = new Robot();
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robot.waitForIdle();
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robot.delay(1000);
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Point p = frame.getLocationOnScreen();
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Dimension d = frame.getSize();
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Point pp = new Point(p);
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pp.translate(d.width / 2, d.height / 2);
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if (!Util.pointInComponent(robot, pp, frame)) {
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System.err.println("WARNING: Couldn't locate " + frame +
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" at point " + pp);
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return;
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}
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sourcePoint = pp;
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clipboard.setContents(new StringSelection(Util.TRANSFER_DATA),
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this);
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String javaPath = System.getProperty("java.home", "");
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String[] command = {
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javaPath + File.separator + "bin" + File.separator + "java",
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"-cp", System.getProperty("test.classes", "."),
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"Child"
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};
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process = Runtime.getRuntime().exec(command);
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ProcessResults pres = ProcessResults.doWaitFor(process);
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stderr = pres.stderr;
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if (pres.stderr != null && pres.stderr.length() > 0) {
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System.err.println("========= Child VM System.err ========");
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System.err.print(pres.stderr);
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System.err.println("======================================");
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}
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if (pres.stdout != null && pres.stdout.length() > 0) {
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System.err.println("========= Child VM System.out ========");
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System.err.print(pres.stdout);
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System.err.println("======================================");
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}
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System.err.println("Child VM return code: " + pres.exitValue);
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if (stderr != null && stderr.contains("InternalError")) {
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throw new RuntimeException("Test failed");
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}
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}
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public void lostOwnership(Clipboard c, Transferable trans) {
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Runnable r = new Runnable() {
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public void run() {
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try {
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if (process == null) {
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throw new RuntimeException("Null process");
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}
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if (sourcePoint == null) {
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throw new RuntimeException("Null point");
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}
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Thread.sleep(STARTUP_TIMEOUT);
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Transferable t = clipboard.getContents(null);
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String s =
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(String) t.getTransferData(DataFlavor.stringFlavor);
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StringTokenizer st = new StringTokenizer(s);
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int x = Integer.parseInt(st.nextToken());
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int y = Integer.parseInt(st.nextToken());
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Point targetPoint = new Point(x, y);
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Robot robot = new Robot();
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robot.mouseMove(sourcePoint.x, sourcePoint.y);
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robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
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for (; !sourcePoint.equals(targetPoint);
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sourcePoint.translate(
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sign(targetPoint.x - sourcePoint.x),
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sign(targetPoint.y - sourcePoint.y)
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)) {
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robot.mouseMove(sourcePoint.x, sourcePoint.y);
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robot.delay(25);
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}
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robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
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} catch (Exception e) {
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e.printStackTrace();
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process.destroy();
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}
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}
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};
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new Thread(r).start();
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}
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public static int sign(int n) {
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return Integer.compare(n, 0);
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}
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}
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class Child {
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public static final int ACTION_TIMEOUT = 30000;
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volatile Frame frame;
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volatile Panel panel;
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public void init() {
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panel = new DropTargetPanel();
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frame = new Frame("Drag source frame");
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frame.setLocation(500, 200);
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frame.add(panel);
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frame.pack();
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frame.setVisible(true);
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}
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public void run() {
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try {
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Robot robot = new Robot();
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robot.waitForIdle();
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robot.delay(1000);
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Point targetPoint = panel.getLocationOnScreen();
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Dimension d = panel.getSize();
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targetPoint.translate(d.width / 2, d.height / 2);
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if (!Util.pointInComponent(robot, targetPoint, panel)) {
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System.err.println("WARNING: Couldn't locate " + panel +
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" at point " + targetPoint);
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System.exit(0);
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}
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String positionData = "" + targetPoint.x + " " + targetPoint.y;
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DnDAWTLockTest.clipboard.setContents(
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new StringSelection(positionData), null);
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Thread.sleep(ACTION_TIMEOUT);
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} catch (Throwable e) {
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e.printStackTrace();
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}
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System.exit(0);
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}
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public static void main(String[] args) throws Exception {
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Child child = new Child();
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EventQueue.invokeAndWait(child::init);
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try {
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child.run();
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} finally {
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EventQueue.invokeAndWait(() -> child.frame.dispose());
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}
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}
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}
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class Util implements AWTEventListener {
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private static final Toolkit tk = Toolkit.getDefaultToolkit();
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public static final Object SYNC_LOCK = new Object();
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private Component clickedComponent = null;
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private static final int PAINT_TIMEOUT = 10000;
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private static final int MOUSE_RELEASE_TIMEOUT = 10000;
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private static final Util util = new Util();
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public static final String TRANSFER_DATA = "TRANSFER_DATA";
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static {
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tk.addAWTEventListener(util, 0xFFFFFFFF);
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}
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private void reset() {
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clickedComponent = null;
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}
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public void eventDispatched(AWTEvent e) {
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if (e.getID() == MouseEvent.MOUSE_RELEASED) {
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clickedComponent = (Component)e.getSource();
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synchronized (SYNC_LOCK) {
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SYNC_LOCK.notifyAll();
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}
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}
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}
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public static boolean pointInComponent(Robot robot, Point p, Component comp)
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throws InterruptedException {
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return util.isPointInComponent(robot, p, comp);
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}
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private boolean isPointInComponent(Robot robot, Point p, Component comp)
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throws InterruptedException {
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tk.sync();
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robot.waitForIdle();
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reset();
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robot.mouseMove(p.x, p.y);
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robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
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synchronized (SYNC_LOCK) {
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robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
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SYNC_LOCK.wait(MOUSE_RELEASE_TIMEOUT);
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}
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Component c = clickedComponent;
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while (c != null && c != comp) {
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c = c.getParent();
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}
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return c == comp;
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}
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}
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class DragSourcePanel extends Panel {
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public DragSourcePanel() {
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final Transferable t = new StringSelection(Util.TRANSFER_DATA);
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final DragGestureListener dgl = new DragGestureListener() {
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public void dragGestureRecognized(DragGestureEvent dge) {
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dge.startDrag(null, t);
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}
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};
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final DragSource ds = DragSource.getDefaultDragSource();
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final DragGestureRecognizer dgr =
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ds.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_COPY,
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dgl);
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}
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public Dimension getPreferredSize() {
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return new Dimension(100, 100);
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}
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}
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class DropTargetPanel extends Panel {
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public DropTargetPanel() {
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final DropTargetListener dtl = new DropTargetAdapter() {
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public void drop(DropTargetDropEvent dtde) {
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Transferable t = dtde.getTransferable();
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dtde.acceptDrop(dtde.getDropAction());
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try {
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t.getTransferData(DataFlavor.stringFlavor);
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} catch (Exception e) {
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e.printStackTrace();
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}
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dtde.dropComplete(true);
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EventQueue.invokeLater(new Runnable() {
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public void run() {
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System.exit(0);
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}
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});
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}
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};
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final DropTarget dt = new DropTarget(this, dtl);
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}
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public Dimension getPreferredSize() {
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return new Dimension(100, 100);
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}
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}
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class ProcessResults {
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public int exitValue;
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public String stdout;
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public String stderr;
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public ProcessResults() {
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exitValue = -1;
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stdout = "";
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stderr = "";
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}
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/**
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* Method to perform a "wait" for a process and return its exit value.
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* This is a workaround for <code>Process.waitFor()</code> never returning.
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*/
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public static ProcessResults doWaitFor(Process p) {
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ProcessResults pres = new ProcessResults();
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InputStream in = null;
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InputStream err = null;
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try {
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in = p.getInputStream();
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err = p.getErrorStream();
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boolean finished = false;
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while (!finished) {
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try {
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while (in.available() > 0) {
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pres.stdout += (char)in.read();
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}
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while (err.available() > 0) {
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pres.stderr += (char)err.read();
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}
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// Ask the process for its exitValue. If the process
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// is not finished, an IllegalThreadStateException
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// is thrown. If it is finished, we fall through and
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// the variable finished is set to true.
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pres.exitValue = p.exitValue();
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finished = true;
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}
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catch (IllegalThreadStateException e) {
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// Process is not finished yet;
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// Sleep a little to save on CPU cycles
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Thread.sleep(500);
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}
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}
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if (in != null) in.close();
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if (err != null) err.close();
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}
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catch (Throwable e) {
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System.err.println("doWaitFor(): unexpected exception");
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e.printStackTrace();
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}
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return pres;
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}
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}
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