001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041: package org.netbeans.swing.dirchooser;
042:
043: import java.beans.PropertyChangeEvent;
044: import java.beans.PropertyChangeListener;
045: import java.lang.reflect.Method;
046: import java.util.logging.Level;
047: import java.util.logging.Logger;
048: import javax.swing.JComponent;
049: import javax.swing.JFileChooser;
050: import javax.swing.plaf.ComponentUI;
051: import javax.swing.plaf.FileChooserUI;
052: import javax.swing.plaf.metal.MetalFileChooserUI;
053: import org.openide.util.Utilities;
054:
055: /** Placeholder ComponentUI that just delegates to other FileChooserUIs
056: * based on what selection mode is set in JFileChooser.
057: *
058: * @author Dafe Simonek
059: */
060: public class DelegatingChooserUI extends ComponentUI {
061:
062: private static final String USE_SHELL_FOLDER = "FileChooser.useShellFolder";
063:
064: private static boolean firstTime = true;
065:
066: public static ComponentUI createUI(JComponent c) {
067: JFileChooser fc = (JFileChooser) c;
068:
069: // #109703 - don't use shell folder, it's terribly slow due to JDK bug
070: if (Utilities.isWindows()) {
071: if (!Boolean.TRUE.equals(fc
072: .getClientProperty(USE_SHELL_FOLDER))) {
073: fc.putClientProperty(USE_SHELL_FOLDER, Boolean.FALSE);
074: }
075: }
076:
077: Class<? extends FileChooserUI> chooser = getCurChooser(fc);
078: ComponentUI compUI;
079: try {
080: Method createUIMethod = chooser.getMethod("createUI",
081: JComponent.class);
082: compUI = (ComponentUI) createUIMethod.invoke(null, fc);
083: } catch (Exception exc) {
084: Logger
085: .getLogger(DelegatingChooserUI.class.getName())
086: .log(
087: Level.FINE,
088: "Could not instantiate custom chooser, fallbacking to Metal",
089: exc);
090: compUI = MetalFileChooserUI.createUI(c);
091: }
092:
093: // listen to sel mode changes and select correct chooser by invoking
094: // filechooser.updateUI() which triggers this createUI again
095: if (firstTime) {
096: fc.addPropertyChangeListener(
097: JFileChooser.FILE_SELECTION_MODE_CHANGED_PROPERTY,
098: new PropertyChangeListener() {
099: public void propertyChange(
100: PropertyChangeEvent evt) {
101: JFileChooser fileChooser = (JFileChooser) evt
102: .getSource();
103: fileChooser.updateUI();
104: }
105: });
106: }
107:
108: return compUI;
109: }
110:
111: /** Returns dirchooser for DIRECTORIES_ONLY, default filechooser for other
112: * selection modes.
113: */
114: private static Class<? extends FileChooserUI> getCurChooser(
115: JFileChooser fc) {
116: if (fc.getFileSelectionMode() == JFileChooser.DIRECTORIES_ONLY) {
117: return DirectoryChooserUI.class;
118: }
119: return Module.getOrigChooser();
120: }
121:
122: }
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