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/*
* Copyright (c) 2002, 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
* @bug 4401853
* @summary Tests that pasting null to TextArea and TextField on Solaris/Linux
* removes selected text; doing it on Windows to TextArea does nothing,
* to TextField removes selected text.
* @key headful
* @run main PasteNullToTextComponentsTest
*/
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Component;
import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.Point;
import java.awt.Robot;
import java.awt.TextArea;
import java.awt.TextComponent;
import java.awt.TextField;
import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.ClipboardOwner;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
public class PasteNullToTextComponentsTest {
private static final int NATIVE_EVENT_PROCESSING_TIMEOUT = 500;
private static final int WAIT_TIMEOUT = 3000;
private boolean failed;
private static final boolean isOSWindows =
System.getProperty("os.name").startsWith("Windows");
private final Object LOCK = new Object();
private Robot robot;
private Frame frame;
private TextArea ta;
private TextField tf;
private Component initialFocusComp;
private final String beg = "a";
private final String sel = "b";
private final String end = "c";
private final String text = beg + sel + end;
private final String begEnd = beg + end;
private boolean initialFocusGained;
public void init() {
ta = new TextArea(text, 3, text.length() + 3);
tf = new TextField(text, text.length() + 3);
initialFocusComp = new Button("Initially focused button");
frame = new Frame();
frame.add(initialFocusComp, BorderLayout.NORTH);
frame.add(ta, BorderLayout.CENTER);
frame.add(tf, BorderLayout.SOUTH);
frame.setSize(200, 200);
FocusListener fl = new FocusAdapter() {
public void focusGained(FocusEvent e) {
System.out.println(e + "; source class=" + e.getSource().getClass());
synchronized (LOCK) {
TextComponent tc = (TextComponent) e.getComponent();
tc.select(1, 2);
robot.keyPress(KeyEvent.VK_CONTROL);
robot.keyPress(KeyEvent.VK_V);
robot.keyRelease(KeyEvent.VK_V);
robot.keyRelease(KeyEvent.VK_CONTROL);
tc.removeFocusListener(this);
LOCK.notifyAll();
}
}
};
ta.addFocusListener(fl);
tf.addFocusListener(fl);
initialFocusComp.addFocusListener(new FocusAdapter() {
public void focusGained(FocusEvent e) {
System.out.println(e + "; source class=" + e.getSource().getClass());
synchronized (LOCK) {
initialFocusGained = true;
LOCK.notifyAll();
}
}
});
setClipboardContents(Toolkit.getDefaultToolkit().getSystemClipboard(),
new StringSelection(null), null);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public void start() throws Exception {
robot = new Robot();
robot.waitForIdle();
robot.delay(500);
Point iniFocusPoint = initialFocusComp.getLocationOnScreen();
synchronized (LOCK) {
if (!initialFocusGained) {
robot.mouseMove(iniFocusPoint.x + 3, iniFocusPoint.y + 3);
robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
LOCK.wait(WAIT_TIMEOUT);
}
}
initialFocusComp.requestFocusInWindow();
robot.waitForIdle();
synchronized (LOCK) {
ta.requestFocusInWindow();
LOCK.wait(WAIT_TIMEOUT);
}
// wait until native control process key event (C^V)
robot.waitForIdle();
robot.delay(NATIVE_EVENT_PROCESSING_TIMEOUT);
synchronized (LOCK) {
tf.requestFocusInWindow();
LOCK.wait(WAIT_TIMEOUT);
}
// wait until native control process key event (C^V)
robot.waitForIdle();
robot.delay(NATIVE_EVENT_PROCESSING_TIMEOUT);
String taText = ta.getText();
String tfText = tf.getText();
System.err.println("TextArea text=" + taText +
" TextField text=" + tfText);
boolean taSelDeleted = begEnd.equals(taText);
boolean taSelRemained = text.equals(taText);
boolean tfSelDeleted = begEnd.equals(tfText);
System.out.println("taSelDeleted = " + taSelDeleted);
System.out.println("taSelRemained = " + taSelRemained);
System.out.println("tfSelDeleted = " + tfSelDeleted);
if (isOSWindows
? !(taSelRemained && tfSelDeleted)
: !(taSelDeleted && tfSelDeleted)) {
failed = true;
}
if (!initialFocusGained) {
System.err.println("Initial component did not gain focus");
failed = false;
}
if (failed) {
throw new RuntimeException("test failed: wrong behavior of text " +
"component on pasting null");
} else {
System.err.println("test passed");
}
}
private static void setClipboardContents(Clipboard cb,
Transferable contents,
ClipboardOwner owner) {
synchronized (cb) {
boolean set = false;
while (!set) {
try {
cb.setContents(contents, owner);
set = true;
} catch (IllegalStateException ise) {
try { Thread.sleep(100); }
catch (InterruptedException e) { e.printStackTrace(); }
}
}
}
}
public static void main(String[] args) throws Exception {
PasteNullToTextComponentsTest app = new PasteNullToTextComponentsTest();
try {
EventQueue.invokeAndWait(app::init);
app.start();
} finally {
EventQueue.invokeAndWait(() -> {
if (app.frame != null) {
app.frame.dispose();
}
});
}
}
}
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