bug4150029.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/*
   bug 4150029 8006087
   summary BackSpace keyboard button does not lead to parent directory
   author Oleg Mokhovikov
*/

import javax.swing.*;
import java.io.File;
import java.io.IOException;

public class bug4150029 extends JApplet {
    private boolean res;

    public void init() {
        if (sun.awt.OSInfo.getOSType() == sun.awt.OSInfo.OSType.MACOSX) {
            try {
                UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }

        String tmpDir = System.getProperty("java.io.tmpdir");

        if (tmpDir.length() == 0) {//'java.io.tmpdir' isn't guaranteed to be defined
            tmpDir = System.getProperty("user.home");
        }

        System.out.println("Temp directory: " + tmpDir);

        File testDir = new File(tmpDir, "testDir");

        testDir.mkdir();

        File subDir = new File(testDir, "subDir");

        subDir.mkdir();

        System.out.println("Created directory: " + testDir);
        System.out.println("Created sub-directory: " + subDir);

        JFileChooser fileChooser = new JFileChooser(testDir);

        fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);

        try {
            res = fileChooser.showOpenDialog(this) != JFileChooser.APPROVE_OPTION ||
                    testDir.getCanonicalPath().equals(fileChooser.getSelectedFile().getCanonicalPath());
        } catch (IOException e) {
            res = false;

            e.printStackTrace();
        }

        try {
            subDir.delete();
            testDir.delete();
        } catch (SecurityException e) {
            e.printStackTrace();
        }
    }

    public void destroy() {
        if (!res) {
            throw new RuntimeException("BackSpace keyboard button does not lead to parent directory");
        }
    }
}