1 /*
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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
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20  * or visit www.oracle.com if you need additional information or have any
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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 
main(String[] args)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
accept(File file)54     public boolean accept(File file) {
55         return !file.isFile() || file.getName().toLowerCase().endsWith(".txt");
56     }
57 
58     @Override
getDescription()59     public String getDescription() {
60         return "Text files";
61     }
62 
63     @Override
run()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 
uncaughtException(Thread thread, Throwable throwable)119     public void uncaughtException(Thread thread, Throwable throwable) {
120         throwable.printStackTrace();
121         System.exit(1);
122     }
123 }
124