Java example source code file (FileDialogForDirectories.java)

This example Java source code file (FileDialogForDirectories.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, button, check, end, event, file, filedialog, filedialogfordirectories, frame, macos, open, override, press, show, string

The FileDialogForDirectories.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 sun.awt.OSInfo;
import test.java.awt.regtesthelpers.Sysout;

import java.applet.Applet;
import java.awt.Button;
import java.awt.FileDialog;
import java.awt.Frame;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class FileDialogForDirectories extends Applet implements ActionListener {
    private volatile Button showBtn;
    private volatile FileDialog fd;

    @Override
    public void init() {
        if (OSInfo.getOSType() != OSInfo.OSType.MACOSX) {
            Sysout.createDialogWithInstructions(new String[]{
                    "Press PASS, this test is for MacOS X only."});
            return;
        }

        System.setProperty("apple.awt.fileDialogForDirectories", "true");

        setLayout(new GridLayout(1, 1));

        fd = new FileDialog(new Frame(), "Open");

        showBtn = new Button("Show File Dialog");
        showBtn.addActionListener(this);
        add(showBtn);
        String[] instructions = {
                "1) Click on 'Show File Dialog' button. A file dialog will come up.",
                "2) Check that files can't be selected.",
                "3) Check that directories can be selected.",
                "4) Repeat steps 1 - 3 a few times for different files and directories.",
                "5) If it's true then the test passed, otherwise it failed."};
        Sysout.createDialogWithInstructions(instructions);
    }//End  init()

    @Override
    public void start() {
        setSize(200, 200);
        show();
    }// start()

    @Override
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == showBtn) {
            fd.setVisible(true);
            String output = fd.getFile();
            if (output != null) {
                Sysout.println(output + " is selected");
            }
        }
    }
}// class ManualYesNoTest