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Java example source code file (TaskbarPositionTest.java)

This example Java source code file (TaskbarPositionTest.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

awt, combopopupchecklistener, event, gui, jcombobox, jmenu, jmenubar, jmenuitem, jpanel, jpopupmenu, open_popup, point, popuphandler, popuplistener, rectangle, runtimeexception, swing, taskbarpositiontest

The TaskbarPositionTest.java Java example source code

/*
 * Copyright (c) 2013, 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.
 */

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

/**
 * @test @bug 4245587 4474813 4425878 4767478 8015599
 * @author Mark Davidson
 * @summary Tests the location of the heavy weight popup portion of JComboBox,
 * JMenu and JPopupMenu.
 * @library ../regtesthelpers
 * @build Util
 * @run main TaskbarPositionTest
 */
public class TaskbarPositionTest extends JFrame implements ActionListener {

    private boolean done;
    private Throwable error;
    private static TaskbarPositionTest test;
    private static JPopupMenu popupMenu;
    private static JPanel panel;
    private static JComboBox<String> combo1;
    private static JComboBox<String> combo2;
    private static JMenuBar menubar;
    private static JMenu menu1;
    private static JMenu menu2;
    private static Rectangle fullScreenBounds;
    // The usable desktop space: screen size - screen insets.
    private static Rectangle screenBounds;
    private static String[] numData = {
        "One", "Two", "Three", "Four", "Five", "Six", "Seven"
    };
    private static String[] dayData = {
        "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"
    };
    private static char[] mnDayData = {
        'M', 'T', 'W', 'R', 'F', 'S', 'U'
    };

    public TaskbarPositionTest() {
        super("Use CTRL-down to show a JPopupMenu");
        setContentPane(panel = createContentPane());
        setJMenuBar(createMenuBar("1 - First Menu", true));
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // CTRL-down will show the popup.
        panel.getInputMap().put(KeyStroke.getKeyStroke(
                KeyEvent.VK_DOWN, InputEvent.CTRL_MASK), "OPEN_POPUP");
        panel.getActionMap().put("OPEN_POPUP", new PopupHandler());

        pack();

        Toolkit toolkit = Toolkit.getDefaultToolkit();
        fullScreenBounds = new Rectangle(new Point(), toolkit.getScreenSize());
        screenBounds = new Rectangle(new Point(), toolkit.getScreenSize());

        // Place the frame near the bottom. This is a pretty wild guess.
        this.setLocation(0, (int) screenBounds.getHeight() - 2 * this.getHeight());

        // Reduce the screen bounds by the insets.
        GraphicsConfiguration gc = this.getGraphicsConfiguration();
        if (gc != null) {
            Insets screenInsets = toolkit.getScreenInsets(gc);
            screenBounds = gc.getBounds();
            screenBounds.width -= (screenInsets.left + screenInsets.right);
            screenBounds.height -= (screenInsets.top + screenInsets.bottom);
            screenBounds.x += screenInsets.left;
            screenBounds.y += screenInsets.top;
        }

        setVisible(true);
    }

    public static class ComboPopupCheckListener implements PopupMenuListener {

        public void popupMenuCanceled(PopupMenuEvent ev) {
        }

        public void popupMenuWillBecomeVisible(PopupMenuEvent ev) {
        }

        public void popupMenuWillBecomeInvisible(PopupMenuEvent ev) {
            Point cpos = combo1.getLocation();
            SwingUtilities.convertPointToScreen(cpos, panel);

            JPopupMenu pm = (JPopupMenu) combo1.getUI().getAccessibleChild(combo1, 0);

            if (pm != null) {
                Point p = pm.getLocation();
                SwingUtilities.convertPointToScreen(p, pm);
                if (p.y < cpos.y) {
                    throw new RuntimeException("ComboBox popup is wrongly aligned");
                }  // check that popup was opened down
            }
        }
    }

    private class PopupHandler extends AbstractAction {

        public void actionPerformed(ActionEvent e) {
            if (!popupMenu.isVisible()) {
                popupMenu.show((Component) e.getSource(), 40, 40);
            }
            isPopupOnScreen(popupMenu, fullScreenBounds);
        }
    }

    class PopupListener extends MouseAdapter {

        private JPopupMenu popup;

        public PopupListener(JPopupMenu popup) {
            this.popup = popup;
        }

        public void mousePressed(MouseEvent e) {
            maybeShowPopup(e);
        }

        public void mouseReleased(MouseEvent e) {
            maybeShowPopup(e);
        }

        private void maybeShowPopup(MouseEvent e) {
            if (e.isPopupTrigger()) {
                popup.show(e.getComponent(), e.getX(), e.getY());
                isPopupOnScreen(popup, fullScreenBounds);
            }
        }
    }

    /**
     * Tests if the popup is on the screen.
     */
    public static void isPopupOnScreen(JPopupMenu popup, Rectangle checkBounds) {
        Dimension dim = popup.getSize();
        Point pt = new Point();
        SwingUtilities.convertPointToScreen(pt, popup);
        Rectangle bounds = new Rectangle(pt, dim);

        if (!SwingUtilities.isRectangleContainingRectangle(checkBounds, bounds)) {
            throw new RuntimeException("We do not match! " + checkBounds + " / " + bounds);
        }

    }

    private JPanel createContentPane() {
        JPanel panel = new JPanel();

        combo1 = new JComboBox<>(numData);
        panel.add(combo1);
        combo2 = new JComboBox<>(dayData);
        combo2.setEditable(true);
        panel.add(combo2);
        panel.setSize(300, 200);

        popupMenu = new JPopupMenu();
        JMenuItem item;
        for (int i = 0; i < dayData.length; i++) {
            item = popupMenu.add(new JMenuItem(dayData[i], mnDayData[i]));
            item.addActionListener(this);
        }
        panel.addMouseListener(new PopupListener(popupMenu));

        JTextField field = new JTextField("CTRL+down for Popup");
        // CTRL-down will show the popup.
        field.getInputMap().put(KeyStroke.getKeyStroke(
                KeyEvent.VK_DOWN, InputEvent.CTRL_MASK), "OPEN_POPUP");
        field.getActionMap().put("OPEN_POPUP", new PopupHandler());

        panel.add(field);

        return panel;
    }

    /**
     * @param str name of Menu
     * @param bFlag set mnemonics on menu items
     */
    private JMenuBar createMenuBar(String str, boolean bFlag) {
        menubar = new JMenuBar();

        menu1 = new JMenu(str);
        menu1.setMnemonic(str.charAt(0));
        menu1.addActionListener(this);

        menubar.add(menu1);
        for (int i = 0; i < 8; i++) {
            JMenuItem menuitem = new JMenuItem("1 JMenuItem" + i);
            menuitem.addActionListener(this);
            if (bFlag) {
                menuitem.setMnemonic('0' + i);
            }
            menu1.add(menuitem);
        }

        // second menu
        menu2 = new JMenu("2 - Second Menu");
        menu2.addActionListener(this);
        menu2.setMnemonic('2');

        menubar.add(menu2);
        for (int i = 0; i < 5; i++) {
            JMenuItem menuitem = new JMenuItem("2 JMenuItem" + i);
            menuitem.addActionListener(this);

            if (bFlag) {
                menuitem.setMnemonic('0' + i);
            }
            menu2.add(menuitem);
        }
        JMenu submenu = new JMenu("Sub Menu");
        submenu.setMnemonic('S');
        submenu.addActionListener(this);
        for (int i = 0; i < 5; i++) {
            JMenuItem menuitem = new JMenuItem("S JMenuItem" + i);
            menuitem.addActionListener(this);
            if (bFlag) {
                menuitem.setMnemonic('0' + i);
            }
            submenu.add(menuitem);
        }
        menu2.add(new JSeparator());
        menu2.add(submenu);

        return menubar;
    }

    public void actionPerformed(ActionEvent evt) {
        Object obj = evt.getSource();
        if (obj instanceof JMenuItem) {
            // put the focus on the noneditable combo.
            combo1.requestFocus();
        }
    }

    public static void main(String[] args) throws Throwable {

        sun.awt.SunToolkit toolkit = (sun.awt.SunToolkit) Toolkit.getDefaultToolkit();

        SwingUtilities.invokeAndWait(new Runnable() {
            public void run() {
                test = new TaskbarPositionTest();
            }
        });

        // Use Robot to automate the test
        Robot robot;
        robot = new Robot();
        robot.setAutoDelay(125);

        // 1 - menu
        Util.hitMnemonics(robot, KeyEvent.VK_1);

        toolkit.realSync();
        isPopupOnScreen(menu1.getPopupMenu(), screenBounds);

        // 2 menu with sub menu
        robot.keyPress(KeyEvent.VK_RIGHT);
        robot.keyRelease(KeyEvent.VK_RIGHT);
        Util.hitMnemonics(robot, KeyEvent.VK_S);

        toolkit.realSync();
        isPopupOnScreen(menu2.getPopupMenu(), screenBounds);

        robot.keyPress(KeyEvent.VK_ENTER);
        robot.keyRelease(KeyEvent.VK_ENTER);

        // Focus should go to non editable combo box
        toolkit.realSync();
        Thread.sleep(500);

        robot.keyPress(KeyEvent.VK_DOWN);

        // How do we check combo boxes?

        // Editable combo box
        robot.keyPress(KeyEvent.VK_TAB);
        robot.keyRelease(KeyEvent.VK_TAB);
        robot.keyPress(KeyEvent.VK_DOWN);
        robot.keyRelease(KeyEvent.VK_DOWN);

        // combo1.getUI();

        // Popup from Text field
        robot.keyPress(KeyEvent.VK_TAB);
        robot.keyRelease(KeyEvent.VK_TAB);
        robot.keyPress(KeyEvent.VK_CONTROL);
        robot.keyPress(KeyEvent.VK_DOWN);
        robot.keyRelease(KeyEvent.VK_DOWN);
        robot.keyRelease(KeyEvent.VK_CONTROL);

        // Popup from a mouse click.
        Point pt = new Point(2, 2);
        SwingUtilities.convertPointToScreen(pt, panel);
        robot.mouseMove((int) pt.getX(), (int) pt.getY());
        robot.mousePress(InputEvent.BUTTON3_MASK);
        robot.mouseRelease(InputEvent.BUTTON3_MASK);

        toolkit.realSync();
        SwingUtilities.invokeAndWait(new Runnable() {
            public void run() {
                test.setLocation(-30, 100);
                combo1.addPopupMenuListener(new ComboPopupCheckListener());
                combo1.requestFocus();
            }
        });

        robot.keyPress(KeyEvent.VK_DOWN);
        robot.keyRelease(KeyEvent.VK_DOWN);
        robot.keyPress(KeyEvent.VK_ESCAPE);
        robot.keyRelease(KeyEvent.VK_ESCAPE);

        toolkit.realSync();
        Thread.sleep(500);
    }
}

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