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/*
* Copyright (c) 2002, 2022, 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 4740761
* @key headful
* @summary Focus stays with the ScrollPane despite
* it being removed from the Parent
* @run main ScrollPaneFocusBugTest
*/
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.KeyboardFocusManager;
import java.awt.Robot;
import java.awt.event.InputEvent;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
public class ScrollPaneFocusBugTest {
private static volatile String focussedComponentName;
private static JScrollPane scrollPane;
private static JFrame frame;
private static Robot robot;
private static volatile int xLocn;
private static volatile int yLocn;
private static volatile int width;
private static volatile int height;
public static JScrollPane
createScrollPaneComponent(JComponent componentToMoveFocusTo) {
JTextArea textArea = new JTextArea("1111\n2222\n3333\n4444\n5555\n");
JScrollPane scrollPaneComponent = new JScrollPane(textArea);
textArea.addKeyListener(new KeyAdapter() {
public void keyTyped(KeyEvent e) {
Container parent = scrollPaneComponent.getParent();
parent.remove(scrollPaneComponent);
parent.validate();
parent.repaint();
componentToMoveFocusTo.requestFocus();
}
});
return scrollPaneComponent;
}
public static void main(String[] args) throws Exception {
SwingUtilities.invokeAndWait(() -> createGUI());
robot = new Robot();
robot.setAutoDelay(200);
robot.setAutoWaitForIdle(true);
pressKey();
SwingUtilities.invokeAndWait(() -> focussedComponentName =
KeyboardFocusManager.getCurrentKeyboardFocusManager()
.getFocusOwner().getClass().getName());
if (focussedComponentName.equals("javax.swing.JTextField")) {
System.out.println(
"Test Passed: Focus shifted to JTextField"
+ "after removing ScrollPane");
} else {
throw new RuntimeException(
"Test Failed: Focus did not shift to JTextField after"
+ "removing ScrollPane, current"
+ " Focus with " + focussedComponentName);
}
SwingUtilities.invokeAndWait(() -> frame.dispose());
}
protected static void pressKey() throws Exception {
SwingUtilities.invokeAndWait(() -> {
xLocn = scrollPane.getLocationOnScreen().x;
yLocn = scrollPane.getLocationOnScreen().y;
width = scrollPane.getSize().width;
height = scrollPane.getSize().height;
});
robot.mouseMove(xLocn + width / 2, yLocn + height / 2);
robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
robot.keyPress(KeyEvent.VK_1);
robot.keyRelease(KeyEvent.VK_1);
}
public static void createGUI() {
frame = new JFrame();
frame.setLayout(new BorderLayout());
JTextField textField = new JTextField("Second Component");
frame.add(textField, BorderLayout.SOUTH);
scrollPane = createScrollPaneComponent(textField);
frame.add(scrollPane, BorderLayout.CENTER);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}
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