author | xdono |
Wed, 02 Jul 2008 12:55:45 -0700 | |
changeset 715 | f16baef3a20e |
parent 678 | 7d331a53a753 |
child 1299 | 027d966d5658 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
715 | 2 |
* Copyright 1998-2008 Sun Microsystems, Inc. All Rights Reserved. |
2 | 3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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package javax.swing.plaf.basic; |
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import java.io.File; |
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import java.util.*; |
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import javax.swing.*; |
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import javax.swing.filechooser.*; |
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import javax.swing.event.*; |
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import java.beans.*; |
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import sun.awt.shell.ShellFolder; |
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/** |
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* Basic implementation of a file list. |
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* |
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* @author Jeff Dinkins |
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*/ |
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public class BasicDirectoryModel extends AbstractListModel implements PropertyChangeListener { |
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private JFileChooser filechooser = null; |
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// PENDING(jeff) pick the size more sensibly |
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private Vector fileCache = new Vector(50); |
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private LoadFilesThread loadThread = null; |
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private Vector files = null; |
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private Vector directories = null; |
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private int fetchID = 0; |
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private PropertyChangeSupport changeSupport; |
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private boolean busy = false; |
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public BasicDirectoryModel(JFileChooser filechooser) { |
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this.filechooser = filechooser; |
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validateFileCache(); |
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} |
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public void propertyChange(PropertyChangeEvent e) { |
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String prop = e.getPropertyName(); |
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if(prop == JFileChooser.DIRECTORY_CHANGED_PROPERTY || |
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prop == JFileChooser.FILE_VIEW_CHANGED_PROPERTY || |
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prop == JFileChooser.FILE_FILTER_CHANGED_PROPERTY || |
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prop == JFileChooser.FILE_HIDING_CHANGED_PROPERTY || |
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prop == JFileChooser.FILE_SELECTION_MODE_CHANGED_PROPERTY) { |
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validateFileCache(); |
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} else if ("UI".equals(prop)) { |
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Object old = e.getOldValue(); |
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if (old instanceof BasicFileChooserUI) { |
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BasicFileChooserUI ui = (BasicFileChooserUI) old; |
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BasicDirectoryModel model = ui.getModel(); |
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if (model != null) { |
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model.invalidateFileCache(); |
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} |
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} |
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} else if ("JFileChooserDialogIsClosingProperty".equals(prop)) { |
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invalidateFileCache(); |
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} |
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} |
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/** |
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* This method is used to interrupt file loading thread. |
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*/ |
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public void invalidateFileCache() { |
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if (loadThread != null) { |
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loadThread.interrupt(); |
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loadThread.cancelRunnables(); |
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loadThread = null; |
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} |
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} |
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public Vector<File> getDirectories() { |
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synchronized(fileCache) { |
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if (directories != null) { |
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return directories; |
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} |
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Vector fls = getFiles(); |
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return directories; |
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} |
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} |
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public Vector<File> getFiles() { |
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synchronized(fileCache) { |
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if (files != null) { |
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return files; |
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} |
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files = new Vector(); |
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directories = new Vector(); |
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directories.addElement(filechooser.getFileSystemView().createFileObject( |
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filechooser.getCurrentDirectory(), "..") |
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); |
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for (int i = 0; i < getSize(); i++) { |
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File f = (File)fileCache.get(i); |
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if (filechooser.isTraversable(f)) { |
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directories.add(f); |
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} else { |
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files.add(f); |
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} |
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} |
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return files; |
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} |
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} |
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public void validateFileCache() { |
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File currentDirectory = filechooser.getCurrentDirectory(); |
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if (currentDirectory == null) { |
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return; |
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} |
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if (loadThread != null) { |
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loadThread.interrupt(); |
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loadThread.cancelRunnables(); |
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} |
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setBusy(true, ++fetchID); |
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loadThread = new LoadFilesThread(currentDirectory, fetchID); |
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loadThread.start(); |
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} |
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/** |
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* Renames a file in the underlying file system. |
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* |
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* @param oldFile a <code>File</code> object representing |
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* the existing file |
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* @param newFile a <code>File</code> object representing |
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* the desired new file name |
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* @return <code>true</code> if rename succeeded, |
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* otherwise <code>false</code> |
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* @since 1.4 |
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*/ |
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public boolean renameFile(File oldFile, File newFile) { |
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synchronized(fileCache) { |
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if (oldFile.renameTo(newFile)) { |
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validateFileCache(); |
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return true; |
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} |
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return false; |
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} |
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} |
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public void fireContentsChanged() { |
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// System.out.println("BasicDirectoryModel: firecontentschanged"); |
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fireContentsChanged(this, 0, getSize()-1); |
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} |
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public int getSize() { |
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return fileCache.size(); |
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} |
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public boolean contains(Object o) { |
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return fileCache.contains(o); |
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} |
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public int indexOf(Object o) { |
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return fileCache.indexOf(o); |
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} |
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public Object getElementAt(int index) { |
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return fileCache.get(index); |
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} |
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/** |
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* Obsolete - not used. |
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*/ |
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public void intervalAdded(ListDataEvent e) { |
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} |
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/** |
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* Obsolete - not used. |
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*/ |
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public void intervalRemoved(ListDataEvent e) { |
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} |
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protected void sort(Vector<? extends File> v){ |
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678
7d331a53a753
6571802: 'Shared Documents' listed in-between C,D drives in the JFileChooser, does not match with native
rupashka
parents:
2
diff
changeset
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ShellFolder.sort(v); |
2 | 200 |
} |
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// Obsolete - not used |
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protected boolean lt(File a, File b) { |
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// First ignore case when comparing |
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int diff = a.getName().toLowerCase().compareTo(b.getName().toLowerCase()); |
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if (diff != 0) { |
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return diff < 0; |
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} else { |
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// May differ in case (e.g. "mail" vs. "Mail") |
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return a.getName().compareTo(b.getName()) < 0; |
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} |
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} |
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class LoadFilesThread extends Thread { |
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File currentDirectory = null; |
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int fid; |
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Vector runnables = new Vector(10); |
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public LoadFilesThread(File currentDirectory, int fid) { |
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super("Basic L&F File Loading Thread"); |
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this.currentDirectory = currentDirectory; |
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this.fid = fid; |
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} |
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private void invokeLater(Runnable runnable) { |
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runnables.addElement(runnable); |
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SwingUtilities.invokeLater(runnable); |
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} |
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public void run() { |
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run0(); |
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setBusy(false, fid); |
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} |
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public void run0() { |
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FileSystemView fileSystem = filechooser.getFileSystemView(); |
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File[] list = fileSystem.getFiles(currentDirectory, filechooser.isFileHidingEnabled()); |
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Vector<File> acceptsList = new Vector<File>(); |
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if (isInterrupted()) { |
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return; |
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} |
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// run through the file list, add directories and selectable files to fileCache |
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for (int i = 0; i < list.length; i++) { |
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if(filechooser.accept(list[i])) { |
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acceptsList.addElement(list[i]); |
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} |
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} |
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if (isInterrupted()) { |
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return; |
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} |
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// First sort alphabetically by filename |
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sort(acceptsList); |
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Vector newDirectories = new Vector(50); |
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Vector newFiles = new Vector(); |
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// run through list grabbing directories in chunks of ten |
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for(int i = 0; i < acceptsList.size(); i++) { |
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File f = (File) acceptsList.elementAt(i); |
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boolean isTraversable = filechooser.isTraversable(f); |
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if (isTraversable) { |
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newDirectories.addElement(f); |
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} else if (!isTraversable && filechooser.isFileSelectionEnabled()) { |
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newFiles.addElement(f); |
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} |
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if(isInterrupted()) { |
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return; |
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} |
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} |
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Vector newFileCache = new Vector(newDirectories); |
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newFileCache.addAll(newFiles); |
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int newSize = newFileCache.size(); |
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int oldSize = fileCache.size(); |
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if (newSize > oldSize) { |
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//see if interval is added |
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int start = oldSize; |
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int end = newSize; |
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for (int i = 0; i < oldSize; i++) { |
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if (!newFileCache.get(i).equals(fileCache.get(i))) { |
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start = i; |
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for (int j = i; j < newSize; j++) { |
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if (newFileCache.get(j).equals(fileCache.get(i))) { |
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end = j; |
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break; |
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} |
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} |
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break; |
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} |
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} |
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if (start >= 0 && end > start |
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&& newFileCache.subList(end, newSize).equals(fileCache.subList(start, oldSize))) { |
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if(isInterrupted()) { |
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return; |
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} |
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invokeLater(new DoChangeContents(newFileCache.subList(start, end), start, null, 0, fid)); |
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newFileCache = null; |
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} |
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} else if (newSize < oldSize) { |
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//see if interval is removed |
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int start = -1; |
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int end = -1; |
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for (int i = 0; i < newSize; i++) { |
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if (!newFileCache.get(i).equals(fileCache.get(i))) { |
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start = i; |
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end = i + oldSize - newSize; |
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break; |
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} |
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} |
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if (start >= 0 && end > start |
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&& fileCache.subList(end, oldSize).equals(newFileCache.subList(start, newSize))) { |
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if(isInterrupted()) { |
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return; |
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} |
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invokeLater(new DoChangeContents(null, 0, new Vector(fileCache.subList(start, end)), |
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start, fid)); |
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newFileCache = null; |
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} |
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} |
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if (newFileCache != null && !fileCache.equals(newFileCache)) { |
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if (isInterrupted()) { |
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cancelRunnables(runnables); |
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} |
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invokeLater(new DoChangeContents(newFileCache, 0, fileCache, 0, fid)); |
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} |
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} |
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public void cancelRunnables(Vector runnables) { |
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for(int i = 0; i < runnables.size(); i++) { |
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((DoChangeContents)runnables.elementAt(i)).cancel(); |
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} |
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} |
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public void cancelRunnables() { |
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cancelRunnables(runnables); |
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} |
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} |
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/** |
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* Adds a PropertyChangeListener to the listener list. The listener is |
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* registered for all bound properties of this class. |
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* <p> |
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* If <code>listener</code> is <code>null</code>, |
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* no exception is thrown and no action is performed. |
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* |
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* @param listener the property change listener to be added |
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* |
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* @see #removePropertyChangeListener |
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* @see #getPropertyChangeListeners |
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* |
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* @since 1.6 |
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*/ |
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public void addPropertyChangeListener(PropertyChangeListener listener) { |
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364 |
if (changeSupport == null) { |
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changeSupport = new PropertyChangeSupport(this); |
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} |
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changeSupport.addPropertyChangeListener(listener); |
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} |
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369 |
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370 |
/** |
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* Removes a PropertyChangeListener from the listener list. |
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* <p> |
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* If listener is null, no exception is thrown and no action is performed. |
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* |
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* @param listener the PropertyChangeListener to be removed |
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376 |
* |
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* @see #addPropertyChangeListener |
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* @see #getPropertyChangeListeners |
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* |
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380 |
* @since 1.6 |
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381 |
*/ |
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382 |
public void removePropertyChangeListener(PropertyChangeListener listener) { |
|
383 |
if (changeSupport != null) { |
|
384 |
changeSupport.removePropertyChangeListener(listener); |
|
385 |
} |
|
386 |
} |
|
387 |
||
388 |
/** |
|
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* Returns an array of all the property change listeners |
|
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* registered on this component. |
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391 |
* |
|
392 |
* @return all of this component's <code>PropertyChangeListener</code>s |
|
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* or an empty array if no property change |
|
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* listeners are currently registered |
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* |
|
396 |
* @see #addPropertyChangeListener |
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* @see #removePropertyChangeListener |
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398 |
* @see java.beans.PropertyChangeSupport#getPropertyChangeListeners |
|
399 |
* |
|
400 |
* @since 1.6 |
|
401 |
*/ |
|
402 |
public PropertyChangeListener[] getPropertyChangeListeners() { |
|
403 |
if (changeSupport == null) { |
|
404 |
return new PropertyChangeListener[0]; |
|
405 |
} |
|
406 |
return changeSupport.getPropertyChangeListeners(); |
|
407 |
} |
|
408 |
||
409 |
/** |
|
410 |
* Support for reporting bound property changes for boolean properties. |
|
411 |
* This method can be called when a bound property has changed and it will |
|
412 |
* send the appropriate PropertyChangeEvent to any registered |
|
413 |
* PropertyChangeListeners. |
|
414 |
* |
|
415 |
* @param propertyName the property whose value has changed |
|
416 |
* @param oldValue the property's previous value |
|
417 |
* @param newValue the property's new value |
|
418 |
* |
|
419 |
* @since 1.6 |
|
420 |
*/ |
|
421 |
protected void firePropertyChange(String propertyName, |
|
422 |
Object oldValue, Object newValue) { |
|
423 |
if (changeSupport != null) { |
|
424 |
changeSupport.firePropertyChange(propertyName, |
|
425 |
oldValue, newValue); |
|
426 |
} |
|
427 |
} |
|
428 |
||
429 |
||
430 |
/** |
|
431 |
* Set the busy state for the model. The model is considered |
|
432 |
* busy when it is running a separate (interruptable) |
|
433 |
* thread in order to load the contents of a directory. |
|
434 |
*/ |
|
435 |
private synchronized void setBusy(final boolean busy, int fid) { |
|
436 |
if (fid == fetchID) { |
|
437 |
boolean oldValue = this.busy; |
|
438 |
this.busy = busy; |
|
439 |
||
440 |
if (changeSupport != null && busy != oldValue) { |
|
441 |
SwingUtilities.invokeLater(new Runnable() { |
|
442 |
public void run() { |
|
443 |
firePropertyChange("busy", !busy, busy); |
|
444 |
} |
|
445 |
}); |
|
446 |
} |
|
447 |
} |
|
448 |
} |
|
449 |
||
450 |
||
451 |
class DoChangeContents implements Runnable { |
|
452 |
private List addFiles; |
|
453 |
private List remFiles; |
|
454 |
private boolean doFire = true; |
|
455 |
private int fid; |
|
456 |
private int addStart = 0; |
|
457 |
private int remStart = 0; |
|
458 |
private int change; |
|
459 |
||
460 |
public DoChangeContents(List addFiles, int addStart, List remFiles, int remStart, int fid) { |
|
461 |
this.addFiles = addFiles; |
|
462 |
this.addStart = addStart; |
|
463 |
this.remFiles = remFiles; |
|
464 |
this.remStart = remStart; |
|
465 |
this.fid = fid; |
|
466 |
} |
|
467 |
||
468 |
synchronized void cancel() { |
|
469 |
doFire = false; |
|
470 |
} |
|
471 |
||
472 |
public synchronized void run() { |
|
473 |
if (fetchID == fid && doFire) { |
|
474 |
int remSize = (remFiles == null) ? 0 : remFiles.size(); |
|
475 |
int addSize = (addFiles == null) ? 0 : addFiles.size(); |
|
476 |
synchronized(fileCache) { |
|
477 |
if (remSize > 0) { |
|
478 |
fileCache.removeAll(remFiles); |
|
479 |
} |
|
480 |
if (addSize > 0) { |
|
481 |
fileCache.addAll(addStart, addFiles); |
|
482 |
} |
|
483 |
files = null; |
|
484 |
directories = null; |
|
485 |
} |
|
486 |
if (remSize > 0 && addSize == 0) { |
|
487 |
fireIntervalRemoved(BasicDirectoryModel.this, remStart, remStart + remSize - 1); |
|
488 |
} else if (addSize > 0 && remSize == 0 && fileCache.size() > addSize) { |
|
489 |
fireIntervalAdded(BasicDirectoryModel.this, addStart, addStart + addSize - 1); |
|
490 |
} else { |
|
491 |
fireContentsChanged(); |
|
492 |
} |
|
493 |
} |
|
494 |
} |
|
495 |
} |
|
496 |
} |