private void changeDirectory(File dir) {
JFileChooser fc = getFileChooser();
// Traverse shortcuts on Windows
if (dir != null && FilePane.usesShellFolder(fc)) {
try {
ShellFolder shellFolder = ShellFolder.getShellFolder(dir);
if (shellFolder.isLink()) {
File linkedTo = shellFolder.getLinkLocation();
// If linkedTo is null we try to use dir
if (linkedTo != null) {
if (fc.isTraversable(linkedTo)) {
dir = linkedTo;
} else {
return;
}
} else {
dir = shellFolder;
}
}
} catch (FileNotFoundException ex) {
return;
}
}
fc.setCurrentDirectory(dir);
if (fc.getFileSelectionMode() == JFileChooser.FILES_AND_DIRECTORIES
&& fc.getFileSystemView().isFileSystem(dir)) {
setFileName(dir.getAbsolutePath());
}
}
/**
* Returns the parent directory of <code>dir</code>.
*
* @param dir the <code>File</code> being queried
* @return the parent directory of <code>dir</code>, or <code>null</code> if <code>dir</code> is
* <code>null</code>
*/
public File getParentDirectory(File dir) {
if (dir == null || !dir.exists()) {
return null;
}
ShellFolder sf;
try {
sf = getShellFolder(dir);
} catch (FileNotFoundException e) {
return null;
}
File psf = sf.getParentFile();
if (psf == null) {
return null;
}
if (isFileSystem(psf)) {
File f = psf;
if (!f.exists()) {
// This could be a node under "Network Neighborhood".
File ppsf = psf.getParentFile();
if (ppsf == null || !isFileSystem(ppsf)) {
// We're mostly after the exists() override for windows below.
f = createFileSystemRoot(f);
}
}
return f;
} else {
return psf;
}
}
/**
* Checks if <code>f</code> represents a real directory or file as opposed to a special folder
* such as <code>"Desktop"</code>. Used by UI classes to decide if a folder is selectable when
* doing directory choosing.
*
* @param f a <code>File</code> object
* @return <code>true</code> if <code>f</code> is a real file or directory.
* @since 1.4
*/
public boolean isFileSystem(File f) {
if (f instanceof ShellFolder) {
ShellFolder sf = (ShellFolder) f;
// Shortcuts to directories are treated as not being file system objects,
// so that they are never returned by JFileChooser.
return sf.isFileSystem() && !(sf.isLink() && sf.isDirectory());
} else {
return true;
}
}
/**
* Return the user's default starting directory for the file chooser.
*
* @return a <code>File</code> object representing the default starting folder
* @since 1.4
*/
public File getDefaultDirectory() {
File f = (File) ShellFolder.get("fileChooserDefaultFolder");
if (isFileSystemRoot(f)) {
f = createFileSystemRoot(f);
}
return f;
}
/**
* Returns all root partitions on this system. For example, on Windows, this would be the
* "Desktop" folder, while on DOS this would be the A: through Z: drives.
*/
public File[] getRoots() {
// Don't cache this array, because filesystem might change
File[] roots = (File[]) ShellFolder.get("roots");
for (int i = 0; i < roots.length; i++) {
if (isFileSystemRoot(roots[i])) {
roots[i] = createFileSystemRoot(roots[i]);
}
}
return roots;
}
public static void main(String[] args) {
if (OSInfo.getOSType() != OSInfo.OSType.WINDOWS) {
System.out.println("The test was skipped because it is sensible only for Windows.");
return;
}
for (String key : KEYS) {
Image image = (Image) ShellFolder.get(key);
if (image == null) {
throw new RuntimeException("The image '" + key + "' not found.");
}
if (image != ShellFolder.get(key)) {
throw new RuntimeException("The image '" + key + "' is not cached.");
}
}
System.out.println("The test passed.");
}
/**
* Icon for a file, directory, or folder as it would be displayed in a system file browser.
* Example from Windows: the "M:\" directory displays a CD-ROM icon.
*
* <p>The default implementation gets information from the ShellFolder class.
*
* @param f a <code>File</code> object
* @return an icon as it would be displayed by a native file chooser
* @see JFileChooser#getIcon
* @since 1.4
*/
public Icon getSystemIcon(File f) {
if (f == null) {
return null;
}
ShellFolder sf;
try {
sf = getShellFolder(f);
} catch (FileNotFoundException e) {
return null;
}
Image img = sf.getIcon(false);
if (img != null) {
return new ImageIcon(img, sf.getFolderType());
} else {
return UIManager.getIcon(f.isDirectory() ? "FileView.directoryIcon" : "FileView.fileIcon");
}
}
/** Throws {@code FileNotFoundException} if file not found or current thread was interrupted */
ShellFolder getShellFolder(File f) throws FileNotFoundException {
if (!(f instanceof ShellFolder) && !(f instanceof FileSystemRoot) && isFileSystemRoot(f)) {
f = createFileSystemRoot(f);
}
try {
return ShellFolder.getShellFolder(f);
} catch (InternalError e) {
System.err.println("FileSystemView.getShellFolder: f=" + f);
e.printStackTrace();
return null;
}
}
private String getSystemDisplayName(File f) {
String name;
try {
name = ShellFolder.getShellFolder(f).getDisplayName();
} catch (FileNotFoundException e) {
return null;
}
if (name == null || name.length() == 0) {
name = f.getPath(); // the "/" directory
}
return name;
}
/** Gets the list of shown (i.e. not hidden) files. */
public File[] getFiles(File dir, boolean useFileHiding) {
List<File> files = new ArrayList<File>();
// add all files in dir
if (!(dir instanceof ShellFolder)) {
try {
dir = getShellFolder(dir);
} catch (FileNotFoundException e) {
return new File[0];
}
}
File[] names = ((ShellFolder) dir).listFiles(!useFileHiding);
if (names == null) {
return new File[0];
}
for (File f : names) {
if (Thread.currentThread().isInterrupted()) {
break;
}
if (!(f instanceof ShellFolder)) {
if (isFileSystemRoot(f)) {
f = createFileSystemRoot(f);
}
try {
f = ShellFolder.getShellFolder(f);
} catch (FileNotFoundException e) {
// Not a valid file (wouldn't show in native file chooser)
// Example: C:\pagefile.sys
continue;
} catch (InternalError e) {
// Not a valid file (wouldn't show in native file chooser)
// Example C:\Winnt\Profiles\joe\history\History.IE5
continue;
}
}
if (!useFileHiding || !isHiddenFile(f)) {
files.add(f);
}
}
return files.toArray(new File[files.size()]);
}
public void mouseClicked(MouseEvent evt) {
// Note: we can't depend on evt.getSource() because of backward
// compatability
if (list != null && SwingUtilities.isLeftMouseButton(evt) && (evt.getClickCount() % 2 == 0)) {
int index = SwingUtilities2.loc2IndexFileList(list, evt.getPoint());
if (index >= 0) {
File f = (File) list.getModel().getElementAt(index);
try {
// Strip trailing ".."
f = ShellFolder.getNormalizedFile(f);
} catch (IOException ex) {
// That's ok, we'll use f as is
}
if (getFileChooser().isTraversable(f)) {
list.clearSelection();
changeDirectory(f);
} else {
getFileChooser().approveSelection();
}
}
}
}
public void run0() {
FileSystemView fileSystem = filechooser.getFileSystemView();
if (loadThread.isInterrupted()) {
return;
}
File[] list = fileSystem.getFiles(currentDirectory, filechooser.isFileHidingEnabled());
if (loadThread.isInterrupted()) {
return;
}
final Vector<File> newFileCache = new Vector<File>();
Vector<File> newFiles = new Vector<File>();
// run through the file list, add directories and selectable files to fileCache
// Note that this block must be OUTSIDE of Invoker thread because of
// deadlock possibility with custom synchronized FileSystemView
for (File file : list) {
if (filechooser.accept(file)) {
boolean isTraversable = filechooser.isTraversable(file);
if (isTraversable) {
newFileCache.addElement(file);
} else if (filechooser.isFileSelectionEnabled()) {
newFiles.addElement(file);
}
if (loadThread.isInterrupted()) {
return;
}
}
}
// First sort alphabetically by filename
sort(newFileCache);
sort(newFiles);
newFileCache.addAll(newFiles);
// To avoid loads of synchronizations with Invoker and improve performance we
// execute the whole block on the COM thread
DoChangeContents doChangeContents =
ShellFolder.invoke(
new Callable<DoChangeContents>() {
public DoChangeContents call() {
int newSize = newFileCache.size();
int oldSize = fileCache.size();
if (newSize > oldSize) {
// see if interval is added
int start = oldSize;
int end = newSize;
for (int i = 0; i < oldSize; i++) {
if (!newFileCache.get(i).equals(fileCache.get(i))) {
start = i;
for (int j = i; j < newSize; j++) {
if (newFileCache.get(j).equals(fileCache.get(i))) {
end = j;
break;
}
}
break;
}
}
if (start >= 0
&& end > start
&& newFileCache
.subList(end, newSize)
.equals(fileCache.subList(start, oldSize))) {
if (loadThread.isInterrupted()) {
return null;
}
return new DoChangeContents(
newFileCache.subList(start, end), start, null, 0, fid);
}
} else if (newSize < oldSize) {
// see if interval is removed
int start = -1;
int end = -1;
for (int i = 0; i < newSize; i++) {
if (!newFileCache.get(i).equals(fileCache.get(i))) {
start = i;
end = i + oldSize - newSize;
break;
}
}
if (start >= 0
&& end > start
&& fileCache
.subList(end, oldSize)
.equals(newFileCache.subList(start, newSize))) {
if (loadThread.isInterrupted()) {
return null;
}
return new DoChangeContents(
null, 0, new Vector<>(fileCache.subList(start, end)), start, fid);
}
}
if (!fileCache.equals(newFileCache)) {
if (loadThread.isInterrupted()) {
cancelRunnables(runnables);
}
return new DoChangeContents(newFileCache, 0, fileCache, 0, fid);
}
return null;
}
});
if (doChangeContents != null) {
runnables.addElement(doChangeContents);
SwingUtilities.invokeLater(doChangeContents);
}
}
/**
* Sorts a list of files.
*
* @param v a list of files
*/
protected void sort(Vector<? extends File> v) {
ShellFolder.sort(v);
}
public void actionPerformed(ActionEvent e) {
if (isDirectorySelected()) {
File dir = getDirectory();
if (dir != null) {
try {
// Strip trailing ".."
dir = ShellFolder.getNormalizedFile(dir);
} catch (IOException ex) {
// Ok, use f as is
}
changeDirectory(dir);
return;
}
}
JFileChooser chooser = getFileChooser();
String filename = getFileName();
FileSystemView fs = chooser.getFileSystemView();
File dir = chooser.getCurrentDirectory();
if (filename != null) {
// Remove whitespaces from end of filename
int i = filename.length() - 1;
while (i >= 0 && filename.charAt(i) <= ' ') {
i--;
}
filename = filename.substring(0, i + 1);
}
if (filename == null || filename.length() == 0) {
// no file selected, multiple selection off, therefore cancel the approve action
resetGlobFilter();
return;
}
File selectedFile = null;
File[] selectedFiles = null;
// Unix: Resolve '~' to user's home directory
if (File.separatorChar == '/') {
if (filename.startsWith("~/")) {
filename = System.getProperty("user.home") + filename.substring(1);
} else if (filename.equals("~")) {
filename = System.getProperty("user.home");
}
}
if (chooser.isMultiSelectionEnabled()
&& filename.length() > 1
&& filename.charAt(0) == '"'
&& filename.charAt(filename.length() - 1) == '"') {
List<File> fList = new ArrayList<File>();
String[] files = filename.substring(1, filename.length() - 1).split("\" \"");
// Optimize searching files by names in "children" array
Arrays.sort(files);
File[] children = null;
int childIndex = 0;
for (String str : files) {
File file = fs.createFileObject(str);
if (!file.isAbsolute()) {
if (children == null) {
children = fs.getFiles(dir, false);
Arrays.sort(children);
}
for (int k = 0; k < children.length; k++) {
int l = (childIndex + k) % children.length;
if (children[l].getName().equals(str)) {
file = children[l];
childIndex = l + 1;
break;
}
}
}
fList.add(file);
}
if (!fList.isEmpty()) {
selectedFiles = fList.toArray(new File[fList.size()]);
}
resetGlobFilter();
} else {
selectedFile = fs.createFileObject(filename);
if (!selectedFile.isAbsolute()) {
selectedFile = fs.getChild(dir, filename);
}
// check for wildcard pattern
FileFilter currentFilter = chooser.getFileFilter();
if (!selectedFile.exists() && isGlobPattern(filename)) {
changeDirectory(selectedFile.getParentFile());
if (globFilter == null) {
globFilter = new GlobFilter();
}
try {
globFilter.setPattern(selectedFile.getName());
if (!(currentFilter instanceof GlobFilter)) {
actualFileFilter = currentFilter;
}
chooser.setFileFilter(null);
chooser.setFileFilter(globFilter);
return;
} catch (PatternSyntaxException pse) {
// Not a valid glob pattern. Abandon filter.
}
}
resetGlobFilter();
// Check for directory change action
boolean isDir = (selectedFile != null && selectedFile.isDirectory());
boolean isTrav = (selectedFile != null && chooser.isTraversable(selectedFile));
boolean isDirSelEnabled = chooser.isDirectorySelectionEnabled();
boolean isFileSelEnabled = chooser.isFileSelectionEnabled();
boolean isCtrl =
(e != null
&& (e.getModifiers() & Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()) != 0);
if (isDir && isTrav && (isCtrl || !isDirSelEnabled)) {
changeDirectory(selectedFile);
return;
} else if ((isDir || !isFileSelEnabled)
&& (!isDir || !isDirSelEnabled)
&& (!isDirSelEnabled || selectedFile.exists())) {
selectedFile = null;
}
}
if (selectedFiles != null || selectedFile != null) {
if (selectedFiles != null || chooser.isMultiSelectionEnabled()) {
if (selectedFiles == null) {
selectedFiles = new File[] {selectedFile};
}
chooser.setSelectedFiles(selectedFiles);
// Do it again. This is a fix for bug 4949273 to force the
// selected value in case the ListSelectionModel clears it
// for non-existing file names.
chooser.setSelectedFiles(selectedFiles);
} else {
chooser.setSelectedFile(selectedFile);
}
chooser.approveSelection();
} else {
if (chooser.isMultiSelectionEnabled()) {
chooser.setSelectedFiles(null);
} else {
chooser.setSelectedFile(null);
}
chooser.cancelSelection();
}
}
/**
* Used by UI classes to decide whether to display a special icon for a computer node, e.g. "My
* Computer" or a network server.
*
* <p>The default implementation has no way of knowing, so always returns false.
*
* @param dir a directory
* @return <code>false</code> always
* @since 1.4
*/
public boolean isComputerNode(File dir) {
return ShellFolder.isComputerNode(dir);
}
/**
* 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
* @since 1.4
*/
public boolean isFileSystemRoot(File dir) {
return ShellFolder.isFileSystemRoot(dir);
}
