JDK8/Java8源码在线阅读
/*
* Copyright (c) 1998, 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* 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
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*/
package javax.swing.plaf.basic;
import javax.swing.*;
import javax.swing.filechooser.*;
import javax.swing.filechooser.FileFilter;
import javax.swing.event.*;
import javax.swing.plaf.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.datatransfer.*;
import java.beans.*;
import java.io.*;
import java.util.*;
import java.util.List;
import java.util.regex.*;
import sun.awt.shell.ShellFolder;
import sun.swing.*;
import sun.swing.SwingUtilities2;
/**
* Basic L&F implementation of a FileChooser.
*
* @author Jeff Dinkins
*/
public class BasicFileChooserUI extends FileChooserUI {
/* FileView icons */
protected Icon directoryIcon = null;
protected Icon fileIcon = null;
protected Icon computerIcon = null;
protected Icon hardDriveIcon = null;
protected Icon floppyDriveIcon = null;
protected Icon newFolderIcon = null;
protected Icon upFolderIcon = null;
protected Icon homeFolderIcon = null;
protected Icon listViewIcon = null;
protected Icon detailsViewIcon = null;
protected Icon viewMenuIcon = null;
protected int saveButtonMnemonic = 0;
protected int openButtonMnemonic = 0;
protected int cancelButtonMnemonic = 0;
protected int updateButtonMnemonic = 0;
protected int helpButtonMnemonic = 0;
/**
* The mnemonic keycode used for the approve button when a directory
* is selected and the current selection mode is FILES_ONLY.
*
* @since 1.4
*/
protected int directoryOpenButtonMnemonic = 0;
protected String saveButtonText = null;
protected String openButtonText = null;
protected String cancelButtonText = null;
protected String updateButtonText = null;
protected String helpButtonText = null;
/**
* The label text displayed on the approve button when a directory
* is selected and the current selection mode is FILES_ONLY.
*
* @since 1.4
*/
protected String directoryOpenButtonText = null;
private String openDialogTitleText = null;
private String saveDialogTitleText = null;
protected String saveButtonToolTipText = null;
protected String openButtonToolTipText = null;
protected String cancelButtonToolTipText = null;
protected String updateButtonToolTipText = null;
protected String helpButtonToolTipText = null;
/**
* The tooltip text displayed on the approve button when a directory
* is selected and the current selection mode is FILES_ONLY.
*
* @since 1.4
*/
protected String directoryOpenButtonToolTipText = null;
// Some generic FileChooser functions
private Action approveSelectionAction = new ApproveSelectionAction();
private Action cancelSelectionAction = new CancelSelectionAction();
private Action updateAction = new UpdateAction();
private Action newFolderAction;
private Action goHomeAction = new GoHomeAction();
private Action changeToParentDirectoryAction = new ChangeToParentDirectoryAction();
private String newFolderErrorSeparator = null;
private String newFolderErrorText = null;
private String newFolderParentDoesntExistTitleText = null;
private String newFolderParentDoesntExistText = null;
private String fileDescriptionText = null;
private String directoryDescriptionText = null;
private JFileChooser filechooser = null;
private boolean directorySelected = false;
private File directory = null;
private PropertyChangeListener propertyChangeListener = null;
private AcceptAllFileFilter acceptAllFileFilter = new AcceptAllFileFilter();
private FileFilter actualFileFilter = null;
private GlobFilter globFilter = null;
private BasicDirectoryModel model = null;
private BasicFileView fileView = new BasicFileView();
private boolean usesSingleFilePane;
private boolean readOnly;
// The accessoryPanel is a container to place the JFileChooser accessory component
private JPanel accessoryPanel = null;
private Handler handler;
/**
* Creates a {@code BasicFileChooserUI} implementation
* for the specified component. By default
* the {@code BasicLookAndFeel} class uses
* {@code createUI} methods of all basic UIs classes
* to instantiate UIs.
*
* @param c the {@code JFileChooser} which needs a UI
* @return the {@code BasicFileChooserUI} object
*
* @see UIDefaults#getUI(JComponent)
* @since 1.7
*/
public static ComponentUI createUI(JComponent c) {
return new BasicFileChooserUI((JFileChooser) c);
}
public BasicFileChooserUI(JFileChooser b) {
}
public void installUI(JComponent c) {
accessoryPanel = new JPanel(new BorderLayout());
filechooser = (JFileChooser) c;
createModel();
clearIconCache();
installDefaults(filechooser);
installComponents(filechooser);
installListeners(filechooser);
filechooser.applyComponentOrientation(filechooser.getComponentOrientation());
}
public void uninstallUI(JComponent c) {
uninstallListeners(filechooser);
uninstallComponents(filechooser);
uninstallDefaults(filechooser);
if(accessoryPanel != null) {
accessoryPanel.removeAll();
}
accessoryPanel = null;
getFileChooser().removeAll();
handler = null;
}
public void installComponents(JFileChooser fc) {
}
public void uninstallComponents(JFileChooser fc) {
}
protected void installListeners(JFileChooser fc) {
propertyChangeListener = createPropertyChangeListener(fc);
if(propertyChangeListener != null) {
fc.addPropertyChangeListener(propertyChangeListener);
}
fc.addPropertyChangeListener(getModel());
InputMap inputMap = getInputMap(JComponent.
WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
SwingUtilities.replaceUIInputMap(fc, JComponent.
WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, inputMap);
ActionMap actionMap = getActionMap();
SwingUtilities.replaceUIActionMap(fc, actionMap);
}
InputMap getInputMap(int condition) {
if (condition == JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT) {
return (InputMap)DefaultLookup.get(getFileChooser(), this,
"FileChooser.ancestorInputMap");
}
return null;
}
ActionMap getActionMap() {
return createActionMap();
}
ActionMap createActionMap() {
ActionMap map = new ActionMapUIResource();
Action refreshAction = new UIAction(FilePane.ACTION_REFRESH) {
public void actionPerformed(ActionEvent evt) {
getFileChooser().rescanCurrentDirectory();
}
};
map.put(FilePane.ACTION_APPROVE_SELECTION, getApproveSelectionAction());
map.put(FilePane.ACTION_CANCEL, getCancelSelectionAction());
map.put(FilePane.ACTION_REFRESH, refreshAction);
map.put(FilePane.ACTION_CHANGE_TO_PARENT_DIRECTORY,
getChangeToParentDirectoryAction());
return map;
}
protected void uninstallListeners(JFileChooser fc) {
if(propertyChangeListener != null) {
fc.removePropertyChangeListener(propertyChangeListener);
}
fc.removePropertyChangeListener(getModel());
SwingUtilities.replaceUIInputMap(fc, JComponent.
WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, null);
SwingUtilities.replaceUIActionMap(fc, null);
}
protected void installDefaults(JFileChooser fc) {
installIcons(fc);
installStrings(fc);
usesSingleFilePane = UIManager.getBoolean("FileChooser.usesSingleFilePane");
readOnly = UIManager.getBoolean("FileChooser.readOnly");
TransferHandler th = fc.getTransferHandler();
if (th == null || th instanceof UIResource) {
fc.setTransferHandler(defaultTransferHandler);
}
LookAndFeel.installProperty(fc, "opaque", Boolean.FALSE);
}
protected void installIcons(JFileChooser fc) {
directoryIcon = UIManager.getIcon("FileView.directoryIcon");
fileIcon = UIManager.getIcon("FileView.fileIcon");
computerIcon = UIManager.getIcon("FileView.computerIcon");
hardDriveIcon = UIManager.getIcon("FileView.hardDriveIcon");
floppyDriveIcon = UIManager.getIcon("FileView.floppyDriveIcon");
newFolderIcon = UIManager.getIcon("FileChooser.newFolderIcon");
upFolderIcon = UIManager.getIcon("FileChooser.upFolderIcon");
homeFolderIcon = UIManager.getIcon("FileChooser.homeFolderIcon");
detailsViewIcon = UIManager.getIcon("FileChooser.detailsViewIcon");
listViewIcon = UIManager.getIcon("FileChooser.listViewIcon");
viewMenuIcon = UIManager.getIcon("FileChooser.viewMenuIcon");
}
protected void installStrings(JFileChooser fc) {
Locale l = fc.getLocale();
newFolderErrorText = UIManager.getString("FileChooser.newFolderErrorText",l);
newFolderErrorSeparator = UIManager.getString("FileChooser.newFolderErrorSeparator",l);
newFolderParentDoesntExistTitleText = UIManager.getString("FileChooser.newFolderParentDoesntExistTitleText", l);
newFolderParentDoesntExistText = UIManager.getString("FileChooser.newFolderParentDoesntExistText", l);
fileDescriptionText = UIManager.getString("FileChooser.fileDescriptionText",l);
directoryDescriptionText = UIManager.getString("FileChooser.directoryDescriptionText",l);
saveButtonText = UIManager.getString("FileChooser.saveButtonText",l);
openButtonText = UIManager.getString("FileChooser.openButtonText",l);
saveDialogTitleText = UIManager.getString("FileChooser.saveDialogTitleText",l);
openDialogTitleText = UIManager.getString("FileChooser.openDialogTitleText",l);
cancelButtonText = UIManager.getString("FileChooser.cancelButtonText",l);
updateButtonText = UIManager.getString("FileChooser.updateButtonText",l);
helpButtonText = UIManager.getString("FileChooser.helpButtonText",l);
directoryOpenButtonText = UIManager.getString("FileChooser.directoryOpenButtonText",l);
saveButtonMnemonic = getMnemonic("FileChooser.saveButtonMnemonic", l);
openButtonMnemonic = getMnemonic("FileChooser.openButtonMnemonic", l);
cancelButtonMnemonic = getMnemonic("FileChooser.cancelButtonMnemonic", l);
updateButtonMnemonic = getMnemonic("FileChooser.updateButtonMnemonic", l);
helpButtonMnemonic = getMnemonic("FileChooser.helpButtonMnemonic", l);
directoryOpenButtonMnemonic = getMnemonic("FileChooser.directoryOpenButtonMnemonic", l);
saveButtonToolTipText = UIManager.getString("FileChooser.saveButtonToolTipText",l);
openButtonToolTipText = UIManager.getString("FileChooser.openButtonToolTipText",l);
cancelButtonToolTipText = UIManager.getString("FileChooser.cancelButtonToolTipText",l);
updateButtonToolTipText = UIManager.getString("FileChooser.updateButtonToolTipText",l);
helpButtonToolTipText = UIManager.getString("FileChooser.helpButtonToolTipText",l);
directoryOpenButtonToolTipText = UIManager.getString("FileChooser.directoryOpenButtonToolTipText",l);
}
protected void uninstallDefaults(JFileChooser fc) {
uninstallIcons(fc);
uninstallStrings(fc);
if (fc.getTransferHandler() instanceof UIResource) {
fc.setTransferHandler(null);
}
}
protected void uninstallIcons(JFileChooser fc) {
directoryIcon = null;
fileIcon = null;
computerIcon = null;
hardDriveIcon = null;
floppyDriveIcon = null;
newFolderIcon = null;
upFolderIcon = null;
homeFolderIcon = null;
detailsViewIcon = null;
listViewIcon = null;
viewMenuIcon = null;
}
protected void uninstallStrings(JFileChooser fc) {
saveButtonText = null;
openButtonText = null;
cancelButtonText = null;
updateButtonText = null;
helpButtonText = null;
directoryOpenButtonText = null;
saveButtonToolTipText = null;
openButtonToolTipText = null;
cancelButtonToolTipText = null;
updateButtonToolTipText = null;
helpButtonToolTipText = null;
directoryOpenButtonToolTipText = null;
}
protected void createModel() {
if (model != null) {
model.invalidateFileCache();
}
model = new BasicDirectoryModel(getFileChooser());
}
public BasicDirectoryModel getModel() {
return model;
}
public PropertyChangeListener createPropertyChangeListener(JFileChooser fc) {
return null;
}
public String getFileName() {
return null;
}
public String getDirectoryName() {
return null;
}
public void setFileName(String filename) {
}
public void setDirectoryName(String dirname) {
}
public void rescanCurrentDirectory(JFileChooser fc) {
}
public void ensureFileIsVisible(JFileChooser fc, File f) {
}
public JFileChooser getFileChooser() {
return filechooser;
}
public JPanel getAccessoryPanel() {
return accessoryPanel;
}
protected JButton getApproveButton(JFileChooser fc) {
return null;
}
public JButton getDefaultButton(JFileChooser fc) {
return getApproveButton(fc);
}
public String getApproveButtonToolTipText(JFileChooser fc) {
String tooltipText = fc.getApproveButtonToolTipText();
if(tooltipText != null) {
return tooltipText;
}
if(fc.getDialogType() == JFileChooser.OPEN_DIALOG) {
return openButtonToolTipText;
} else if(fc.getDialogType() == JFileChooser.SAVE_DIALOG) {
return saveButtonToolTipText;
}
return null;
}
public void clearIconCache() {
fileView.clearIconCache();
}
// ********************************************
// ************ Create Listeners **************
// ********************************************
private Handler getHandler() {
if (handler == null) {
handler = new Handler();
}
return handler;
}
protected MouseListener createDoubleClickListener(JFileChooser fc,
JList list) {
return new Handler(list);
}
public ListSelectionListener createListSelectionListener(JFileChooser fc) {
return getHandler();
}
private class Handler implements MouseListener, ListSelectionListener {
JList list;
Handler() {
}
Handler(JList list) {
this.list = list;
}
public void mouseClicked(MouseEvent evt) {
// Note: we can't depend on evt.getSource() because of backward
// compatibility
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 mouseEntered(MouseEvent evt) {
if (list != null) {
TransferHandler th1 = getFileChooser().getTransferHandler();
TransferHandler th2 = list.getTransferHandler();
if (th1 != th2) {
list.setTransferHandler(th1);
}
if (getFileChooser().getDragEnabled() != list.getDragEnabled()) {
list.setDragEnabled(getFileChooser().getDragEnabled());
}
}
}
public void mouseExited(MouseEvent evt) {
}
public void mousePressed(MouseEvent evt) {
}
public void mouseReleased(MouseEvent evt) {
}
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);
}
}
}
}
}
}
protected class DoubleClickListener extends MouseAdapter {
// NOTE: This class exists only for backward compatibility. All
// its functionality has been moved into Handler. If you need to add
// new functionality add it to the Handler, but make sure this
// class calls into the Handler.
Handler handler;
public DoubleClickListener(JList list) {
handler = new Handler(list);
}
/**
* The JList used for representing the files is created by subclasses, but the
* selection is monitored in this class. The TransferHandler installed in the
* JFileChooser is also installed in the file list as it is used as the actual
* transfer source. The list is updated on a mouse enter to reflect the current
* data transfer state of the file chooser.
*/
public void mouseEntered(MouseEvent e) {
handler.mouseEntered(e);
}
public void mouseClicked(MouseEvent e) {
handler.mouseClicked(e);
}
}
protected class SelectionListener implements ListSelectionListener {
// NOTE: This class exists only for backward compatibility. All
// its functionality has been moved into Handler. If you need to add
// new functionality add it to the Handler, but make sure this
// class calls into the Handler.
public void valueChanged(ListSelectionEvent e) {
getHandler().valueChanged(e);
}
}
/**
* Property to remember whether a directory is currently selected in the UI.
*
* @return <code>true</code> iff a directory is currently selected.
* @since 1.4
*/
protected boolean isDirectorySelected() {
return directorySelected;
}
/**
* Property to remember whether a directory is currently selected in the UI.
* This is normally called by the UI on a selection event.
*
* @param b iff a directory is currently selected.
* @since 1.4
*/
protected void setDirectorySelected(boolean b) {
directorySelected = b;
}
/**
* Property to remember the directory that is currently selected in the UI.
*
* @return the value of the <code>directory</code> property
* @see #setDirectory
* @since 1.4
*/
protected File getDirectory() {
return directory;
}
/**
* Property to remember the directory that is currently selected in the UI.
* This is normally called by the UI on a selection event.
*
* @param f the <code>File</code> object representing the directory that is
* currently selected
* @since 1.4
*/
protected void setDirectory(File f) {
directory = f;
}
/**
* Returns the mnemonic for the given key.
*/
private int getMnemonic(String key, Locale l) {
return SwingUtilities2.getUIDefaultsInt(key, l);
}
// *******************************************************
// ************ FileChooser UI PLAF methods **************
// *******************************************************
/**
* Returns the default accept all file filter
*/
public FileFilter getAcceptAllFileFilter(JFileChooser fc) {
return acceptAllFileFilter;
}
public FileView getFileView(JFileChooser fc) {
return fileView;
}
/**
* Returns the title of this dialog
*/
public String getDialogTitle(JFileChooser fc) {
String dialogTitle = fc.getDialogTitle();
if (dialogTitle != null) {
return dialogTitle;
} else if (fc.getDialogType() == JFileChooser.OPEN_DIALOG) {
return openDialogTitleText;
} else if (fc.getDialogType() == JFileChooser.SAVE_DIALOG) {
return saveDialogTitleText;
} else {
return getApproveButtonText(fc);
}
}
public int getApproveButtonMnemonic(JFileChooser fc) {
int mnemonic = fc.getApproveButtonMnemonic();
if (mnemonic > 0) {
return mnemonic;
} else if (fc.getDialogType() == JFileChooser.OPEN_DIALOG) {
return openButtonMnemonic;
} else if (fc.getDialogType() == JFileChooser.SAVE_DIALOG) {
return saveButtonMnemonic;
} else {
return mnemonic;
}
}
public String getApproveButtonText(JFileChooser fc) {
String buttonText = fc.getApproveButtonText();
if (buttonText != null) {
return buttonText;
} else if (fc.getDialogType() == JFileChooser.OPEN_DIALOG) {
return openButtonText;
} else if (fc.getDialogType() == JFileChooser.SAVE_DIALOG) {
return saveButtonText;
} else {
return null;
}
}
// *****************************
// ***** Directory Actions *****
// *****************************
public Action getNewFolderAction() {
if (newFolderAction == null) {
newFolderAction = new NewFolderAction();
// Note: Don't return null for readOnly, it might
// break older apps.
if (readOnly) {
newFolderAction.setEnabled(false);
}
}
return newFolderAction;
}
public Action getGoHomeAction() {
return goHomeAction;
}
public Action getChangeToParentDirectoryAction() {
return changeToParentDirectoryAction;
}
public Action getApproveSelectionAction() {
return approveSelectionAction;
}
public Action getCancelSelectionAction() {
return cancelSelectionAction;
}
public Action getUpdateAction() {
return updateAction;
}
/**
* Creates a new folder.
*/
protected class NewFolderAction extends AbstractAction {
protected NewFolderAction() {
super(FilePane.ACTION_NEW_FOLDER);
}
public void actionPerformed(ActionEvent e) {
if (readOnly) {
return;
}
JFileChooser fc = getFileChooser();
File currentDirectory = fc.getCurrentDirectory();
if (!currentDirectory.exists()) {
JOptionPane.showMessageDialog(
fc,
newFolderParentDoesntExistText,
newFolderParentDoesntExistTitleText, JOptionPane.WARNING_MESSAGE);
return;
}
File newFolder;
try {
newFolder = fc.getFileSystemView().createNewFolder(currentDirectory);
if (fc.isMultiSelectionEnabled()) {
fc.setSelectedFiles(new File[] { newFolder });
} else {
fc.setSelectedFile(newFolder);
}
} catch (IOException exc) {
JOptionPane.showMessageDialog(
fc,
newFolderErrorText + newFolderErrorSeparator + exc,
newFolderErrorText, JOptionPane.ERROR_MESSAGE);
return;
}
fc.rescanCurrentDirectory();
}
}
/**
* Acts on the "home" key event or equivalent event.
*/
protected class GoHomeAction extends AbstractAction {
protected GoHomeAction() {
super("Go Home");
}
public void actionPerformed(ActionEvent e) {
JFileChooser fc = getFileChooser();
changeDirectory(fc.getFileSystemView().getHomeDirectory());
}
}
protected class ChangeToParentDirectoryAction extends AbstractAction {
protected ChangeToParentDirectoryAction() {
super("Go Up");
putValue(Action.ACTION_COMMAND_KEY, FilePane.ACTION_CHANGE_TO_PARENT_DIRECTORY);
}
public void actionPerformed(ActionEvent e) {
getFileChooser().changeToParentDirectory();
}
}
/**
* Responds to an Open or Save request
*/
protected class ApproveSelectionAction extends AbstractAction {
protected ApproveSelectionAction() {
super(FilePane.ACTION_APPROVE_SELECTION);
}
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();
}
}
}
private void resetGlobFilter() {
if (actualFileFilter != null) {
JFileChooser chooser = getFileChooser();
FileFilter currentFilter = chooser.getFileFilter();
if (currentFilter != null && currentFilter.equals(globFilter)) {
chooser.setFileFilter(actualFileFilter);
chooser.removeChoosableFileFilter(globFilter);
}
actualFileFilter = null;
}
}
private static boolean isGlobPattern(String filename) {
return ((File.separatorChar == '\\' && (filename.indexOf('*') >= 0
|| filename.indexOf('?') >= 0))
|| (File.separatorChar == '/' && (filename.indexOf('*') >= 0
|| filename.indexOf('?') >= 0
|| filename.indexOf('[') >= 0)));
}
/* A file filter which accepts file patterns containing
* the special wildcards *? on Windows and *?[] on Unix.
*/
class GlobFilter extends FileFilter {
Pattern pattern;
String globPattern;
public void setPattern(String globPattern) {
char[] gPat = globPattern.toCharArray();
char[] rPat = new char[gPat.length * 2];
boolean isWin32 = (File.separatorChar == '\\');
boolean inBrackets = false;
int j = 0;
this.globPattern = globPattern;
if (isWin32) {
// On windows, a pattern ending with *.* is equal to ending with *
int len = gPat.length;
if (globPattern.endsWith("*.*")) {
len -= 2;
}
for (int i = 0; i < len; i++) {
switch(gPat[i]) {
case '*':
rPat[j++] = '.';
rPat[j++] = '*';
break;
case '?':
rPat[j++] = '.';
break;
case '\\':
rPat[j++] = '\\';
rPat[j++] = '\\';
break;
default:
if ("+()^$.{}[]".indexOf(gPat[i]) >= 0) {
rPat[j++] = '\\';
}
rPat[j++] = gPat[i];
break;
}
}
} else {
for (int i = 0; i < gPat.length; i++) {
switch(gPat[i]) {
case '*':
if (!inBrackets) {
rPat[j++] = '.';
}
rPat[j++] = '*';
break;
case '?':
rPat[j++] = inBrackets ? '?' : '.';
break;
case '[':
inBrackets = true;
rPat[j++] = gPat[i];
if (i < gPat.length - 1) {
switch (gPat[i+1]) {
case '!':
case '^':
rPat[j++] = '^';
i++;
break;
case ']':
rPat[j++] = gPat[++i];
break;
}
}
break;
case ']':
rPat[j++] = gPat[i];
inBrackets = false;
break;
case '\\':
if (i == 0 && gPat.length > 1 && gPat[1] == '~') {
rPat[j++] = gPat[++i];
} else {
rPat[j++] = '\\';
if (i < gPat.length - 1 && "*?[]".indexOf(gPat[i+1]) >= 0) {
rPat[j++] = gPat[++i];
} else {
rPat[j++] = '\\';
}
}
break;
default:
//if ("+()|^$.{}<>".indexOf(gPat[i]) >= 0) {
if (!Character.isLetterOrDigit(gPat[i])) {
rPat[j++] = '\\';
}
rPat[j++] = gPat[i];
break;
}
}
}
this.pattern = Pattern.compile(new String(rPat, 0, j), Pattern.CASE_INSENSITIVE);
}
public boolean accept(File f) {
if (f == null) {
return false;
}
if (f.isDirectory()) {
return true;
}
return pattern.matcher(f.getName()).matches();
}
public String getDescription() {
return globPattern;
}
}
/**
* Responds to a cancel request.
*/
protected class CancelSelectionAction extends AbstractAction {
public void actionPerformed(ActionEvent e) {
getFileChooser().cancelSelection();
}
}
/**
* Rescans the files in the current directory
*/
protected class UpdateAction extends AbstractAction {
public void actionPerformed(ActionEvent e) {
JFileChooser fc = getFileChooser();
fc.setCurrentDirectory(fc.getFileSystemView().createFileObject(getDirectoryName()));
fc.rescanCurrentDirectory();
}
}
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());
}
}
// *****************************************
// ***** default AcceptAll file filter *****
// *****************************************
protected class AcceptAllFileFilter extends FileFilter {
public AcceptAllFileFilter() {
}
public boolean accept(File f) {
return true;
}
public String getDescription() {
return UIManager.getString("FileChooser.acceptAllFileFilterText");
}
}
// ***********************
// * FileView operations *
// ***********************
protected class BasicFileView extends FileView {
/* FileView type descriptions */
// PENDING(jeff) - pass in the icon cache size
protected Hashtable<File,Icon> iconCache = new Hashtable<File,Icon>();
public BasicFileView() {
}
public void clearIconCache() {
iconCache = new Hashtable<File,Icon>();
}
public String getName(File f) {
// Note: Returns display name rather than file name
String fileName = null;
if(f != null) {
fileName = getFileChooser().getFileSystemView().getSystemDisplayName(f);
}
return fileName;
}
public String getDescription(File f) {
return f.getName();
}
public String getTypeDescription(File f) {
String type = getFileChooser().getFileSystemView().getSystemTypeDescription(f);
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