/*
* @(#)OSXTigerFileSystemView.java
*
* Copyright (c) 2006-2010 Werner Randelshofer, Immensee, Switzerland.
* All rights reserved.
*
* You may not use, copy or modify this file, except in compliance with the
* license agreement you entered into with Werner Randelshofer.
* For details see accompanying license terms.
*/
package ch.randelshofer.quaqua.tiger.filechooser;
import ch.randelshofer.quaqua.filechooser.*;
import java.io.*;
import java.util.*;
/**
* A file system view for Mac OS X 10.4 (Tiger).
* <p>
* Note: This file system view only works on top of Apple's Macintosh Runtime for Java.
*
* @author Werner Randelshofer
* @version $Id: OSXTigerFileSystemView.java 364 2010-11-25 09:27:39Z wrandelshofer $
*/
public class OSXTigerFileSystemView extends QuaquaFileSystemView {
private static final File volumesFolder = new File("/Volumes");
private static final File networkFolder = new File("/Network");
private static final File computer = new File("/");
private static File systemVolume;
public OSXTigerFileSystemView() {
}
public File getSystemVolume() {
if (systemVolume == null) {
File[] volumes = volumesFolder.listFiles();
File sys = null;
for (int i=0; i < volumes.length; i++) {
try {
if (volumes[i].getCanonicalFile().equals(computer)) {
sys = volumes[i];
break;
}
} catch (IOException e) {
// We get here because we can't determine the
// canonical path for the volume. We suppress this
// exception, in the hope that it did not happen for
// the system volume. If it happened for the system
// volume, there is fallback code in method
// getSystemVolume() that handles this problem.
// System.err.println(
// "Unable to canonicalize volume "+volumes[i]
// );
// e.printStackTrace();
} catch (SecurityException e) {
// We get here because we are not allowed to read the
// file. We suppress this exception, in the hope that
// it did not happen for the system volume. If it
// happened for the system volume, there is fallback
// code in method getSystemVolume() that handles this
// problem.
}
}
// If we couldn't determine the system volume, we use the
// root folder instead.
systemVolume = (sys == null) ? computer : sys;
}
return systemVolume;
}
public File getComputer() {
return computer;
}
/**
* This is a list of file names that are treated as invisible by the AWT
* FileDialog when they are at the top directory level of a volume.
* The file names are wrongly treated as visible by
* Apple's implementation FileSystemView, so we use this HashSet here, to
* hide them 'manually'.
*/
private final static HashSet hiddenTopLevelNames = new HashSet();
private final static HashSet hiddenDirectoryNames = new HashSet();
static {
String[] names = {
"AppleShare PDS",
"automount",
"bin",
"Cleanup At Startup",
"cores",
"Desktop DB",
"Desktop DF",
"dev",
"etc",
"home",
"mach",
"mach_kernel",
"mach_kernel.ctfsys",
"mach.sym",
"net",
"opt",
"private",
"sbin",
"Temporary Items",
"TheVolumeSettingsFolder",
"TheFindByContentFolder",
"tmp",
"Trash",
"usr",
"var",
"Volumes",
"\u0003\u0002\u0001Move&Rename",
};
hiddenTopLevelNames.addAll(Arrays.asList(names));
names = new String[]{
"$RECYCLE.BIN",
"Thumbs.db",
"desktop.ini",};
hiddenDirectoryNames.addAll(Arrays.asList(names));
};
/**
* Returns the parent directory of dir.
* This method returns the system volume instead of the computer folder ("/").
*/
@Override
public File getParentDirectory(File dir) {
File parent = (isRoot(dir)) ? null : super.getParentDirectory(dir);
if (parent != null && parent.equals(computer)) {
parent = getSystemVolume();
}
return parent;
}
/**
* Returns all root partitians on this system.
* This method returns the contents of the volumes folder.
* The computer folder ("/") is considered as hidden and not
* returned by this method.
*/
@Override
public File[] getRoots() {
File[] fileArray;
ArrayList roots = new ArrayList();
/*
fileArray = sysView.getRoots();
if (fileArray != null) {
roots.addAll(Arrays.asList(fileArray));
}
*/
//roots.add(computer);
fileArray = volumesFolder.listFiles();
if (fileArray != null) {
roots.addAll(Arrays.asList(fileArray));
//roots.remove(getSystemVolume());
}
roots.add(networkFolder);
return (File[]) roots.toArray(new File[roots.size()]);
}
/**
* Returns whether a file is hidden or not.
*/
@Override
public boolean isHiddenFile(File f) {
if (f.isHidden()) {
return true;
} else {
String name = f.getName();
if (name.length() == 0) {
return false;
} else if (name.charAt(name.length() - 1) == (char) 0x0d) {
// File names ending with 0x0d are considered as
// hidden
return true;
} else if (hiddenTopLevelNames.contains(name)
&& (f.getParent() == null || isRoot(f.getParentFile()))) {
return true;
} else if (hiddenDirectoryNames.contains(name)) {
return true;
} else {
return false;
}
}
}
/**
* Determines if the given file is a root partition or drive.
*/
@Override
public boolean isRoot(File aFile) {
return aFile.equals(computer)
|| aFile.equals(networkFolder)
|| aFile.getParentFile() != null && aFile.getParentFile().equals(volumesFolder);
}
/**
* On Windows, a file can appear in multiple folders, other than its
* parent directory in the filesystem. Folder could for example be the
* "Desktop" folder which is not the same as file.getParentFile().
*
* @param folder a <code>File</code> object repesenting a directory or special folder
* @param file a <code>File</code> object
* @return <code>true</code> if <code>folder</code> is a directory or special folder and contains <code>file</code>.
*/
@Override
public boolean isParent(File folder, File file) {
if (folder == null || file == null) {
return false;
} else {
return folder.equals(file.getParentFile());
}
}
/**
*
* @param parent a <code>File</code> object repesenting a directory or special folder
* @param fileName a name of a file or folder which exists in <code>parent</code>
* @return a File object. This is normally constructed with <code>new
* File(parent, fileName)</code> except when parent and child are both
* special folders, in which case the <code>File</code> is a wrapper containing
* a <code>ShellFolder</code> object.
*/
@Override
public File getChild(File parent, String fileName) {
return new File(parent, fileName);
}
/**
* Is dir the root of a tree in the file system, such as a drive
* or partition. Example: Returns true for "C:\" on Windows 98.
*
* @param dir a <code>File</code> object representing a directory
* @return <code>true</code> if <code>f</code> is a root of a filesystem
* @see #isRoot
*/
@Override
public boolean isFileSystemRoot(File dir) {
File parentFile = dir.getParentFile();
return parentFile == null || parentFile.equals(volumesFolder);
}
// Providing default implementations for the remaining methods
// because most OS file systems will likely be able to use this
// code. If a given OS can't, override these methods in its
// implementation.
@Override
public File getHomeDirectory() {
return createFileObject(System.getProperty("user.home"));
}
/**
* Return the user's default starting directory for the file chooser.
*
* @return a <code>File</code> object representing the default
* starting folder
*/
public File getDefaultDirectory() {
return getHomeDirectory();
}
}