Java example source code file (bug5074573.java)

This example Java source code file (bug5074573.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

aqua, awt, caret, class, event, exception, gui, jframe, jtextcomponent, jtextfield, list, override, robot, runnable, runtimeexception, string, suntoolkit, swing, text, util

The bug5074573.java Java example source code

/*
 * Copyright (c) 2011, 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 5074573
 * @summary tests delte-next-word and delete-prev-word actions for all text compnents and all look&feels
 * @author Igor Kushnirskiy
 * @run main bug5074573
 */

import java.util.*;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.text.*;
import sun.awt.SunToolkit;

public class bug5074573 {

    private static JTextComponent textComponent;
    final static String testString = "123 456 789";
    final static String resultString = "456 ";
    final static List<Class textClasses = Arrays.asList(
            JTextArea.class, JEditorPane.class, JTextPane.class,
            JTextField.class, JFormattedTextField.class, JPasswordField.class);

    public static void main(String[] args) throws Exception {
        for (UIManager.LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
            UIManager.setLookAndFeel(info.getClassName());
            System.out.println(info);
            for (Class<? extends JTextComponent> clazz : textClasses) {
                boolean res = test(clazz);
                if (!res && clazz != JPasswordField.class) {
                    throw new RuntimeException("failed");
                }
            }
        }
    }

    static boolean test(final Class<? extends JTextComponent> textComponentClass) throws Exception {
        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
        Robot robot = new Robot();
        robot.setAutoWaitForIdle(true);
        robot.setAutoDelay(50);

        SwingUtilities.invokeAndWait(new Runnable() {

            @Override
            public void run() {
                initialize(textComponentClass);
            }
        });

        toolkit.realSync();

        // Remove selection from JTextField components for the Aqua Look & Feel
        if (textComponent instanceof JTextField && "Aqua".equals(UIManager.getLookAndFeel().getID())) {
            SwingUtilities.invokeAndWait(new Runnable() {

                @Override
                public void run() {
                    Caret caret = textComponent.getCaret();
                    int dot = caret.getDot();
                    textComponent.select(dot, dot);
                }
            });

            toolkit.realSync();
        }

        robot.keyPress(getCtrlKey());
        robot.keyPress(KeyEvent.VK_BACK_SPACE);
        robot.keyRelease(KeyEvent.VK_BACK_SPACE);
        robot.keyRelease(getCtrlKey());
        toolkit.realSync();

        SwingUtilities.invokeAndWait(new Runnable() {

            @Override
            public void run() {
                Caret caret = textComponent.getCaret();
                caret.setDot(0);
            }
        });
        toolkit.realSync();

        robot.keyPress(getCtrlKey());
        robot.keyPress(KeyEvent.VK_DELETE);
        robot.keyRelease(KeyEvent.VK_DELETE);
        robot.keyRelease(getCtrlKey());
        toolkit.realSync();

        return resultString.equals(getText());
    }

    private static String getText() throws Exception {
        final String[] result = new String[1];

        SwingUtilities.invokeAndWait(new Runnable() {
            @Override
            public void run() {
                result[0] = textComponent.getText();
            }
        });

        return result[0];
    }

    /**
     * Gets a control key related to the used Look & Feel
     * Returns VK_ALT for Aqua and VK_CONTROL for others
     */
    public static int getCtrlKey() {

        if ("Aqua".equals(UIManager.getLookAndFeel().getID())) {
            return KeyEvent.VK_ALT;
        }

        return KeyEvent.VK_CONTROL;
    }

    private static void initialize(Class<? extends JTextComponent> textComponentClass) {
        try {
            JFrame frame = new JFrame();
            textComponent = textComponentClass.newInstance();
            textComponent.setText(testString);
            frame.add(textComponent);
            frame.pack();
            frame.setVisible(true);
            textComponent.requestFocus();
            Caret caret = textComponent.getCaret();
            caret.setDot(textComponent.getDocument().getLength());
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}