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/*
* Copyright (c) 2014, 2024, 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.AWTEvent;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Point;
import java.awt.Robot;
import java.awt.datatransfer.StringSelection;
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.DragSourceAdapter;
import java.awt.dnd.DragSourceDragEvent;
import java.awt.dnd.DragSourceListener;
import java.awt.event.AWTEventListener;
import java.awt.event.InputEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.awt.event.MouseMotionListener;
import javax.swing.SwingUtilities;
/*
* @test
* @bug 4613903
* @summary verifies that mouse events are not dispatched during drag
* @key headful
* @run main MouseEventAfterStartDragTest
*/
public final class MouseEventAfterStartDragTest implements AWTEventListener {
final Frame frame = new Frame();
volatile Point srcPoint;
volatile Dimension d;
volatile MouseEvent lastMouseEvent = null;
volatile boolean passed = true;
final DragSource dragSource = DragSource.getDefaultDragSource();
final Transferable transferable = new StringSelection("TEXT");
final MouseMotionListener mouseMotionListener = new MouseMotionAdapter() {
public void mouseDragged(MouseEvent e) {
System.out.println("mouseDragged: " + e
+ ", hash:" + e.hashCode());
if (lastMouseEvent != null && !e.equals(lastMouseEvent)) {
System.out.println("Unexpected: " + e
+ ", hash:" + e.hashCode());
passed = false;
}
}
};
final DragSourceListener dragSourceListener = new DragSourceAdapter() {
public void dragDropEnd(DragSourceDragEvent dsde) {
System.out.println("dragDropEnd: " + dsde);
lastMouseEvent = null;
}
};
final DragGestureListener dragGestureListener = new DragGestureListener() {
public void dragGestureRecognized(DragGestureEvent dge) {
System.out.println("dragGestureRecognized: " + dge);
Object[] events = dge.toArray();
Object lastEvent = events[events.length - 1];
if (lastEvent instanceof MouseEvent) {
lastMouseEvent = (MouseEvent) lastEvent;
}
System.out.println("The last mouse event: " + lastMouseEvent
+ ", hash:" + lastMouseEvent.hashCode());
dge.startDrag(null, transferable, dragSourceListener);
}
};
static final Object SYNC_LOCK = new Object();
static final int MOUSE_RELEASE_TIMEOUT = 1000;
volatile Component clickedComponent = null;
public static void main(String[] args) throws Exception {
System.setProperty("awt.dnd.drag.threshold", "0");
MouseEventAfterStartDragTest app = new MouseEventAfterStartDragTest();
try {
app.createAndShowGUI();
app.test();
} finally {
app.dispose();
}
}
public void createAndShowGUI() throws Exception {
SwingUtilities.invokeAndWait(() -> {
frame.setTitle("Test frame");
frame.setBounds(100, 100, 200, 200);
frame.setLocationRelativeTo(null);
frame.addMouseMotionListener(mouseMotionListener);
dragSource.createDefaultDragGestureRecognizer(frame, DnDConstants.ACTION_COPY_OR_MOVE,
dragGestureListener);
frame.getToolkit().addAWTEventListener(this, AWTEvent.MOUSE_EVENT_MASK);
frame.setVisible(true);
});
}
public static int sign(int n) {
return n < 0 ? -1 : n == 0 ? 0 : 1;
}
public void test() throws Exception {
final Robot robot = new Robot();
robot.setAutoDelay(45);
robot.waitForIdle();
SwingUtilities.invokeAndWait(() -> {
srcPoint = frame.getLocationOnScreen();
d = frame.getSize();
});
srcPoint.translate(d.width / 2, d.height / 2);
if (!pointInComponent(robot, srcPoint, frame)) {
System.err.println("WARNING: Couldn't locate source frame.");
return;
}
final Point dstPoint = new Point(srcPoint);
dstPoint.translate(d.width / 4, d.height / 4);
if (!pointInComponent(robot, dstPoint, frame)) {
System.err.println("WARNING: Couldn't locate target frame.");
return;
}
robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
robot.mouseMove(srcPoint.x, srcPoint.y);
robot.delay(250);
System.out.println("srcPoint = " + srcPoint);
for (; !srcPoint.equals(dstPoint);
srcPoint.translate(sign(dstPoint.x - srcPoint.x),
sign(dstPoint.y - srcPoint.y))) {
robot.mouseMove(srcPoint.x, srcPoint.y);
System.out.println("srcPoint = " + srcPoint);
}
robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
System.out.println("done");
robot.waitForIdle();
robot.delay(MOUSE_RELEASE_TIMEOUT);
if (!passed) {
throw new RuntimeException("Test failed");
}
}
public void dispose() throws Exception {
SwingUtilities.invokeAndWait(() -> {
if (frame != null) {
frame.dispose();
}
});
}
public void reset() {
clickedComponent = null;
}
public void eventDispatched(AWTEvent e) {
if (e.getID() == MouseEvent.MOUSE_RELEASED) {
clickedComponent = (Component) e.getSource();
synchronized (SYNC_LOCK) {
SYNC_LOCK.notifyAll();
}
}
}
boolean pointInComponent(Robot robot, Point p, Component comp)
throws InterruptedException {
robot.waitForIdle();
reset();
robot.mouseMove(p.x, p.y);
robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
synchronized (SYNC_LOCK) {
robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
SYNC_LOCK.wait(MOUSE_RELEASE_TIMEOUT);
}
Component c = clickedComponent;
while (c != null && c != comp) {
c = c.getParent();
}
return c == comp;
}
}
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