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/*
* Copyright (c) 2001, 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.
*/
/*
* @test
* @bug 4095214
* @summary Test change of focus on lightweights using the tab key
* @key headful
* @run main LightWeightTabFocus
*/
import java.awt.Button;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.Robot;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
public class LightWeightTabFocus {
private static Frame f;
private static LightweightButton btn1;
private static Button btn2;
private static Robot robot;
private static volatile Point point;
private static Point loc;
public static void main(String[] args) throws Exception {
robot = new Robot();
robot.setAutoDelay(100);
try {
EventQueue.invokeAndWait(() -> createUI());
robot.delay(1000);
EventQueue.invokeAndWait(() -> {
loc = f.getLocation();
point = btn2.getLocation();
});
robot.mouseMove(loc.x + point.x, loc.y + point.y);
robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
// First TAB
robot.keyPress(KeyEvent.VK_TAB);
robot.keyRelease(KeyEvent.VK_TAB);
if (!btn1.hasFocus()) {
new RuntimeException("First tab failed");
}
// Second TAB
robot.keyPress(KeyEvent.VK_TAB);
robot.keyRelease(KeyEvent.VK_TAB);
if (!btn2.hasFocus()) {
new RuntimeException("Second tab failed");
}
// First SHIFT+TAB
robot.keyPress(KeyEvent.VK_SHIFT);
robot.keyPress(KeyEvent.VK_TAB);
robot.delay(100);
robot.keyRelease(KeyEvent.VK_TAB);
robot.keyRelease(KeyEvent.VK_SHIFT);
if (!btn1.hasFocus()) {
new RuntimeException("First shift+tab failed");
}
// Second SHIFT+TAB
robot.keyPress(KeyEvent.VK_SHIFT);
robot.keyPress(KeyEvent.VK_TAB);
robot.delay(100);
robot.keyRelease(KeyEvent.VK_TAB);
robot.keyRelease(KeyEvent.VK_SHIFT);
if (!btn2.hasFocus()) {
new RuntimeException("Second shift+tab failed");
}
} catch (Exception e) {
e.printStackTrace();
} finally {
EventQueue.invokeAndWait(() -> {
if (f != null) {
f.dispose();
}
});
}
}
private static Frame createUI() {
f = new Frame("TAB Focus Change on LW Test");
f.setLayout(new FlowLayout());
btn1 = new LightweightButton();
f.add(btn1);
btn2 = new Button("Click Me To start");
f.add(btn2);
f.pack();
f.setVisible(true);
return f;
}
}
class LightweightButton extends Component implements FocusListener {
boolean focus;
LightweightButton() {
focus = false;
addFocusListener(this);
}
public Dimension getPreferredSize()
{
return new Dimension(100, 100);
}
public void focusGained(FocusEvent e) {
focus = true;
repaint();
}
public void focusLost(FocusEvent e) {
focus = false;
repaint();
}
public void paint(Graphics g) {
if (focus) {
g.drawString("Has Focus", 10, 20);
} else {
g.drawString("Not Focused", 10, 20);
}
}
public boolean isFocusable() {
return true;
}
}
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