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/*
* Copyright (c) 2016, 2025, 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
* @key headful
* @bug 8033936 8172510
* @summary Verify that correct ItemEvent is received while selection &
* deselection of multi select List items.
* @library /test/lib
* @build jdk.test.lib.Platform
* @run main ItemEventTest
*/
// Pass -save to the test to enable screenshots at each select/deselect
import java.awt.AWTException;
import java.awt.Event;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.List;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.awt.image.RenderedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import jdk.test.lib.Platform;
public final class ItemEventTest extends Frame {
private static final String expectedSelectionOrder = "01230123";
private static boolean saveScreenshots;
private final StringBuffer actualSelectionOrder
= new StringBuffer(expectedSelectionOrder.length());
private final List list;
private final Robot robot;
private ItemEventTest() throws AWTException {
robot = new Robot();
robot.setAutoWaitForIdle(true);
list = new List(4, true);
list.add("0");
list.add("1");
list.add("2");
list.add("3");
add(list);
setSize(400,400);
setLayout(new FlowLayout());
pack();
setLocationRelativeTo(null);
setVisible(true);
robot.waitForIdle();
}
@Override
@SuppressWarnings("deprecation")
public boolean handleEvent(Event e) {
if ((e.target instanceof List)
&& (e.id == Event.LIST_DESELECT
|| e.id == Event.LIST_SELECT)) {
logEvent("handleEvent: ", e.arg);
}
return true;
}
private void logEvent(String method, Object listItem) {
actualSelectionOrder.append(listItem);
System.out.println(method + listItem);
}
private void testHandleEvent() {
// When no ItemListener is added to List, parent's handleEvent is
// called with ItemEvent.
performTest();
}
private void testItemListener() {
list.addItemListener(ie
-> logEvent("testItemListener: ", ie.getItem()));
performTest();
}
private void performTest() {
actualSelectionOrder.setLength(0);
final Rectangle rect = getListBoundsOnScreen();
final int dY = rect.height / list.getItemCount();
final Point loc = new Point(rect.x + rect.width / 2,
rect.y + dY / 2);
if (Platform.isOSX()) {
robot.keyPress(KeyEvent.VK_META);
}
// First loop to select & Second loop to deselect the list items.
for (int j = 0; j < 2; ++j) {
for (int i = 0; i < list.getItemCount(); ++i) {
robot.mouseMove(loc.x, loc.y + i * dY);
robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
robot.waitForIdle();
if (saveScreenshots) {
saveImage(robot.createScreenCapture(rect));
}
}
}
if (Platform.isOSX()) {
robot.keyRelease(KeyEvent.VK_META);
}
if (!expectedSelectionOrder.contentEquals(actualSelectionOrder)) {
saveImage(robot.createScreenCapture(rect));
throw new RuntimeException("ItemEvent for selection & deselection"
+ " of multi select List's item is not correct"
+ " Expected : " + expectedSelectionOrder
+ " Actual : " + actualSelectionOrder);
}
}
private Rectangle getListBoundsOnScreen() {
return new Rectangle(list.getLocationOnScreen(),
list.getSize());
}
private static int imageNo = 0;
private static void saveImage(RenderedImage image) {
try {
ImageIO.write(image,
"png",
new File(String.format("image-%02d.png",
++imageNo)));
} catch (IOException ignored) {
}
}
public static void main(String[] args) throws AWTException {
saveScreenshots = args.length > 0 && "-save".equals(args[0]);
ItemEventTest test = new ItemEventTest();
try {
test.testHandleEvent();
test.testItemListener();
} finally {
test.dispose();
}
}
}
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