public void valueChanged(ListSelectionEvent evt) {
if (!evt.getValueIsAdjusting()) {
JFileChooser chooser = getFileChooser();
FileSystemView fsv = chooser.getFileSystemView();
JList list = (JList) evt.getSource();
int fsm = chooser.getFileSelectionMode();
boolean useSetDirectory = usesSingleFilePane && (fsm == JFileChooser.FILES_ONLY);
if (chooser.isMultiSelectionEnabled()) {
File[] files = null;
Object[] objects = list.getSelectedValues();
if (objects != null) {
if (objects.length == 1
&& ((File) objects[0]).isDirectory()
&& chooser.isTraversable(((File) objects[0]))
&& (useSetDirectory || !fsv.isFileSystem(((File) objects[0])))) {
setDirectorySelected(true);
setDirectory(((File) objects[0]));
} else {
ArrayList<File> fList = new ArrayList<File>(objects.length);
for (Object object : objects) {
File f = (File) object;
boolean isDir = f.isDirectory();
if ((chooser.isFileSelectionEnabled() && !isDir)
|| (chooser.isDirectorySelectionEnabled() && fsv.isFileSystem(f) && isDir)) {
fList.add(f);
}
}
if (fList.size() > 0) {
files = fList.toArray(new File[fList.size()]);
}
setDirectorySelected(false);
}
}
chooser.setSelectedFiles(files);
} else {
File file = (File) list.getSelectedValue();
if (file != null
&& file.isDirectory()
&& chooser.isTraversable(file)
&& (useSetDirectory || !fsv.isFileSystem(file))) {
setDirectorySelected(true);
setDirectory(file);
if (usesSingleFilePane) {
chooser.setSelectedFile(null);
}
} else {
setDirectorySelected(false);
if (file != null) {
chooser.setSelectedFile(file);
}
}
}
}
}
public boolean accept(File f) {
if (f == null) {
return false;
}
if (f.isDirectory()) {
return true;
}
return pattern.matcher(f.getName()).matches();
}
public String getTypeDescription(File f) {
String type = getFileChooser().getFileSystemView().getSystemTypeDescription(f);
if (type == null) {
if (f.isDirectory()) {
type = directoryDescriptionText;
} else {
type = fileDescriptionText;
}
}
return type;
}
public Icon getIcon(File f) {
Icon icon = getCachedIcon(f);
if (icon != null) {
return icon;
}
icon = fileIcon;
if (f != null) {
FileSystemView fsv = getFileChooser().getFileSystemView();
if (fsv.isFloppyDrive(f)) {
icon = floppyDriveIcon;
} else if (fsv.isDrive(f)) {
icon = hardDriveIcon;
} else if (fsv.isComputerNode(f)) {
icon = computerIcon;
} else if (f.isDirectory()) {
icon = directoryIcon;
}
}
cacheIcon(f, icon);
return icon;
}
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();
}
}