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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
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* The contents of this file are subject to the terms of either the GNU
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* General Public License Version 2 only ("GPL") or the Common
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* Development and Distribution License("CDDL") (collectively, the
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* "License"). You may not use this file except in compliance with the
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* License. You can obtain a copy of the License at
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* http://www.netbeans.org/cddl-gplv2.html
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* or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
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* specific language governing permissions and limitations under the
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* License. When distributing the software, include this License Header
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* Notice in each file and include the License file at
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* nbbuild/licenses/CDDL-GPL-2-CP. 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 GPL Version 2 section of the License file that
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* accompanied this code. If applicable, add the following below the
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* License Header, with the fields enclosed by brackets [] replaced by
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* your own identifying information:
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* "Portions Copyrighted [year] [name of copyright owner]"
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* The Original Software is NetBeans. The Initial Developer of the Original
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* Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
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* Microsystems, Inc. All Rights Reserved.
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* If you wish your version of this file to be governed by only the CDDL
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* or only the GPL Version 2, indicate your decision by adding
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* "[Contributor] elects to include this software in this distribution
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* under the [CDDL or GPL Version 2] license." If you do not indicate a
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* single choice of license, a recipient has the option to distribute
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* your version of this file under either the CDDL, the GPL Version 2 or
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* to extend the choice of license to its licensees as provided above.
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* However, if you add GPL Version 2 code and therefore, elected the GPL
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* Version 2 license, then the option applies only if the new code is
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* made subject to such option by the copyright holder.
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* Contributor(s): Soot Phengsy
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package org.netbeans.swing.dirchooser;
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import java.awt.event.*;
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import javax.swing.event.*;
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* Blocks user's input when FileChooser is busy.
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* @author Soot Phengsy
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public class InputBlocker extends JComponent implements MouseInputListener {
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public InputBlocker() {
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private void addListeners(Component c) {
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for( MouseListener ml : c.getMouseListeners() ) {
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c.addMouseListener(this);
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c.addMouseMotionListener(this);
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private void removeListeners(Component c) {
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c.removeMouseListener(this);
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c.removeMouseMotionListener(this);
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public void block(JRootPane rootPane) {
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if( null == rootPane )
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Component glassPane = rootPane.getGlassPane();
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if( null == glassPane ) {
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rootPane.setGlassPane(this);
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glassPane.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
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addListeners(glassPane);
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glassPane.setVisible(true);
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public void unBlock(JRootPane rootPane) {
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if( null == rootPane )
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Component glassPane = rootPane.getGlassPane();
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if( null == glassPane ) {
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removeListeners(glassPane);
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glassPane.setCursor(null);
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glassPane.setVisible(false);
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public void mouseClicked(MouseEvent e) {
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Toolkit.getDefaultToolkit().beep();
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public void mousePressed(MouseEvent e) {
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public void mouseReleased(MouseEvent e) {
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public void mouseEntered(MouseEvent e) {
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public void mouseExited(MouseEvent e) {
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public void mouseDragged(MouseEvent e) {
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public void mouseMoved(MouseEvent e) {