1 /*
   2  * Copyright (c) 2013, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /**
  25  * @test
  26  * @key headful
  27  * @bug 8013442
  28  * @summary Tests that at least one file filter is selected
  29  * @author Sergey Malenkov
  30  */
  31 
  32 import java.io.File;
  33 import java.util.concurrent.CountDownLatch;
  34 import javax.swing.JFileChooser;
  35 import javax.swing.JFrame;
  36 import javax.swing.SwingUtilities;
  37 import javax.swing.UIManager;
  38 import javax.swing.UIManager.LookAndFeelInfo;
  39 import javax.swing.filechooser.FileFilter;
  40 
  41 public class Test8013442 extends FileFilter implements Runnable, Thread.UncaughtExceptionHandler {
  42     private static final CountDownLatch LATCH = new CountDownLatch(1);
  43 
  44     public static void main(String[] args) throws InterruptedException {
  45         SwingUtilities.invokeLater(new Test8013442());
  46         LATCH.await(); // workaround for jtreg
  47     }
  48 
  49     private int index;
  50     private LookAndFeelInfo[] infos;
  51     private JFileChooser chooser;
  52 
  53     @Override
  54     public boolean accept(File file) {
  55         return !file.isFile() || file.getName().toLowerCase().endsWith(".txt");
  56     }
  57 
  58     @Override
  59     public String getDescription() {
  60         return "Text files";
  61     }
  62 
  63     @Override
  64     public void run() {
  65         if (this.infos == null) {
  66             this.infos = UIManager.getInstalledLookAndFeels();
  67             Thread.currentThread().setUncaughtExceptionHandler(this);
  68         }
  69         if (this.infos.length == this.index) {
  70             LATCH.countDown(); // release main thread
  71         } else if (this.chooser == null) {
  72             // change LaF before creation of Swing components
  73             LookAndFeelInfo info = this.infos[this.index];
  74             System.out.println(info.getName());
  75             try {
  76                 UIManager.setLookAndFeel(info.getClassName());
  77             }
  78             catch (Exception exception) {
  79                 throw new Error("could not change look and feel", exception);
  80             }
  81             // create and show new file chooser
  82             JFrame frame = new JFrame(getClass().getSimpleName());
  83             frame.add(this.chooser = new JFileChooser());
  84             frame.setSize(800, 600);
  85             frame.setLocationRelativeTo(null);
  86             frame.setVisible(true);
  87             SwingUtilities.invokeLater(this);
  88         }
  89         else {
  90             int count = this.chooser.getChoosableFileFilters().length;
  91             System.out.println("count = " + count + "; " + this.chooser.isAcceptAllFileFilterUsed());
  92             if (count == 0) {
  93                 if (null != this.chooser.getFileFilter()) {
  94                     throw new Error("file filter is selected");
  95                 }
  96                 // close window and stop testing file chooser for current LaF
  97                 SwingUtilities.getWindowAncestor(this.chooser).dispose();
  98                 this.chooser = null;
  99                 this.index++;
 100             } else {
 101                 if (null == this.chooser.getFileFilter()) {
 102                     throw new Error("file filter is not selected");
 103                 }
 104                 if (count == 2) {
 105                     // remove default file filter
 106                     this.chooser.setAcceptAllFileFilterUsed(false);
 107                 } else if (this.chooser.isAcceptAllFileFilterUsed()) {
 108                     // remove add file filter
 109                     this.chooser.addChoosableFileFilter(this);
 110                 } else {
 111                     // remove custom file filter
 112                     this.chooser.removeChoosableFileFilter(this);
 113                 }
 114             }
 115             SwingUtilities.invokeLater(this);
 116         }
 117     }
 118 
 119     public void uncaughtException(Thread thread, Throwable throwable) {
 120         throwable.printStackTrace();
 121         System.exit(1);
 122     }
 123 }