undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
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test/jdk/java/awt/dnd/DropTargetingTest.java
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test/jdk/java/awt/dnd/DropTargetingTest.java
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/*
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* Copyright (c) 2001, 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 javax.swing.JButton;
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import javax.swing.JFrame;
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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.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.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.DragSource;
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import java.awt.dnd.DragSourceAdapter;
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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.DropTargetAdapter;
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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.AWTEventListener;
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import java.awt.event.InputEvent;
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import java.awt.event.KeyEvent;
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import java.awt.event.MouseEvent;
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/*
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@test
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@bug 4426794 4435403
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@summary tests that drag notifications are targeted to the drop target
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whose operable part is currently intersected by cursor's hotspot
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@key headful
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@run main DropTargetingTest
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*/
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public class DropTargetingTest implements AWTEventListener {
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volatile JFrame sourceFrame;
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volatile JFrame targetFrame1;
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volatile JFrame targetFrame2;
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volatile JButton obscurer;
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volatile DragSource dragSource;
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volatile Transferable transferable;
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volatile DragSourceListener dragSourceListener;
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volatile DragGestureListener dragGestureListener;
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volatile Point srcPoint;
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volatile Point dstPoint;
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volatile Dimension d;
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static class TestDropTargetListener extends DropTargetAdapter {
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private boolean dropRecognized = false;
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public void drop(DropTargetDropEvent dtde) {
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dropRecognized = true;
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dtde.rejectDrop();
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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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public void reset() {
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dropRecognized = false;
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}
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public boolean dropRecognized() {
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return dropRecognized;
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}
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}
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volatile TestDropTargetListener dropTargetListener;
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static final Object SYNC_LOCK = new Object();
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static final int FRAME_ACTIVATION_TIMEOUT = 2000;
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static final int DROP_COMPLETION_TIMEOUT = 5000;
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static final int MOUSE_RELEASE_TIMEOUT = 1000;
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Component clickedComponent = null;
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public static void main(String[] args) throws Exception {
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DropTargetingTest test = new DropTargetingTest();
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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.sourceFrame != null) {
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test.sourceFrame.dispose();
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}
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if (test.targetFrame1 != null) {
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test.targetFrame1.dispose();
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}
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if (test.targetFrame2 != null) {
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test.targetFrame2.dispose();
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}
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});
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}
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}
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public void init() {
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sourceFrame = new JFrame();
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targetFrame1 = new JFrame();
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targetFrame2 = new JFrame();
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obscurer = new JButton("Obscurer");
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dragSource = DragSource.getDefaultDragSource();
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transferable = new StringSelection("TEXT");
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dragSourceListener = new DragSourceAdapter() {};
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dragGestureListener = new DragGestureListener() {
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public void dragGestureRecognized(DragGestureEvent dge) {
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dge.startDrag(null, transferable, dragSourceListener);
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}
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};
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dropTargetListener = new TestDropTargetListener();
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sourceFrame.setTitle("DropTargetingTest Source frame");
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sourceFrame.setBounds(100, 100, 100, 100);
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sourceFrame.getToolkit().addAWTEventListener(this, AWTEvent.MOUSE_EVENT_MASK);
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dragSource.createDefaultDragGestureRecognizer(sourceFrame, DnDConstants.ACTION_COPY,
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dragGestureListener);
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targetFrame1.setTitle("Target frame 1");
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targetFrame1.setBounds(200, 100, 100, 100);
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targetFrame1.getGlassPane().setVisible(true);
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targetFrame1.getGlassPane().setDropTarget(
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new DropTarget(targetFrame1.getGlassPane(), dropTargetListener));
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targetFrame2.setTitle("Target frame 2");
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targetFrame2.setBounds(300, 100, 100, 100);
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targetFrame2.setDropTarget(new DropTarget(targetFrame1, dropTargetListener));
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targetFrame2.getContentPane().add(obscurer);
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sourceFrame.setVisible(true);
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targetFrame1.setVisible(true);
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targetFrame2.setVisible(true);
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}
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public static int sign(int n) {
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return n < 0 ? -1 : n == 0 ? 0 : 1;
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}
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public void start() throws Exception {
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Robot robot = new Robot();
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robot.delay(FRAME_ACTIVATION_TIMEOUT);
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if (!test(robot, targetFrame1)) {
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throw new RuntimeException("Failed to recognize drop on a glass pane");
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}
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if (!test(robot, targetFrame2)) {
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throw new RuntimeException("Failed to recognize drop on a composite component");
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}
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}
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public 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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boolean pointInComponent(Robot robot, Point p, Component comp)
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throws InterruptedException {
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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_MASK);
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synchronized (SYNC_LOCK) {
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robot.mouseRelease(InputEvent.BUTTON1_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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boolean test(Robot robot, JFrame targetFrame) throws Exception {
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EventQueue.invokeAndWait(() -> {
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srcPoint = sourceFrame.getLocationOnScreen();
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d = sourceFrame.getSize();
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});
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srcPoint.translate(d.width / 2, d.height / 2);
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if (!pointInComponent(robot, srcPoint, sourceFrame)) {
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System.err.println("WARNING: Couldn't locate source frame.");
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return true;
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}
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EventQueue.invokeAndWait(() -> {
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dstPoint = targetFrame.getLocationOnScreen();
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d = targetFrame.getSize();
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});
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dstPoint.translate(d.width / 2, d.height / 2);
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if (!pointInComponent(robot, dstPoint, targetFrame)) {
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System.err.println("WARNING: Couldn't locate target frame: " + targetFrame);
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return true;
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}
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dropTargetListener.reset();
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robot.mouseMove(srcPoint.x, srcPoint.y);
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robot.keyPress(KeyEvent.VK_CONTROL);
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robot.mousePress(InputEvent.BUTTON1_MASK);
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for (;!srcPoint.equals(dstPoint);
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srcPoint.translate(sign(dstPoint.x - srcPoint.x),
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sign(dstPoint.y - srcPoint.y))) {
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robot.mouseMove(srcPoint.x, srcPoint.y);
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robot.delay(10);
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}
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synchronized (SYNC_LOCK) {
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robot.mouseRelease(InputEvent.BUTTON1_MASK);
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robot.keyRelease(KeyEvent.VK_CONTROL);
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SYNC_LOCK.wait(DROP_COMPLETION_TIMEOUT);
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}
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return dropTargetListener.dropRecognized();
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}
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}
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class DropTargetPanel extends Panel implements DropTargetListener {
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final Dimension preferredDimension = new Dimension(200, 100);
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boolean testPassed = true;
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public DropTargetPanel() {
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setDropTarget(new DropTarget(this, this));
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}
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public boolean getStatus() {
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return testPassed;
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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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public void dragExit(DropTargetEvent dte) {
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testPassed = false;
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}
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public void dragOver(DropTargetDragEvent dtde) {}
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public void dropActionChanged(DropTargetDragEvent dtde) {}
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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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}
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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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} catch (Throwable e) {
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e.printStackTrace();
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dtc.dropComplete(false);
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}
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}
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dtc.dropComplete(true);
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add(comp);
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}
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}
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