1 /*
   2  * Copyright (c) 2013, 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  * Portions Copyright (c) 2013 IBM Corporation
  26  */
  27 import java.awt.BorderLayout;
  28 import java.awt.Robot;
  29 
  30 import java.awt.event.ActionListener;
  31 import javax.swing.DefaultButtonModel;
  32 import javax.swing.JEditorPane;
  33 import javax.swing.JFrame;
  34 import javax.swing.SwingUtilities;
  35 import javax.swing.text.StyleConstants;
  36 import javax.swing.text.StyleContext;
  37 import javax.swing.text.html.HTMLEditorKit;
  38 
  39 
  40 /*
  41  * @test
  42  * @bug 8008289
  43  * @summary Shared ButtonModel instance should deregister previous listeners.
  44  * @author Frank Ding
  45  */
  46 public class bug7189299 {
  47 
  48     private static JEditorPane html;
  49     private static JFrame frame;
  50 
  51     private static void setup() {
  52         /**
  53          * Note the input type is not restricted to "submit". Types "image",
  54          * "checkbox", "radio" have the same problem.
  55          */
  56         html = new JEditorPane("text/html",
  57                 "<html><body><form action=\"http://localhost.cgi\">"
  58                         + "<input type=submit name=submit value=\"submit\"/>"
  59                         + "</form></body></html>");
  60         frame = new JFrame();
  61         frame.setLayout(new BorderLayout());
  62         frame.add(html, BorderLayout.CENTER);
  63         frame.setSize(200, 100);
  64         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  65         frame.setVisible(true);
  66     }
  67 
  68     private static void doTest() {
  69         /*
  70          * Calling updateComponentTreeUI creates a new FormView instance with
  71          * its own associated JButton instance. The same DefaultButtonModel
  72          * instance is used for both FormView's.
  73          *
  74          * The action listeners associated with (the JButton for) the first
  75          * FormView should be unregistered from this common DefaultButtonModel,
  76          * such that only those for the new FormView remain.
  77          */
  78         SwingUtilities.updateComponentTreeUI(html);
  79     }
  80 
  81     private static void verifySingleDefaultButtonModelListener() {
  82         HTMLEditorKit htmlEditorKit = (HTMLEditorKit) html.getEditorKit();
  83         StyleContext.NamedStyle style = ((StyleContext.NamedStyle) htmlEditorKit
  84                 .getInputAttributes());
  85         DefaultButtonModel model = ((DefaultButtonModel) style
  86                 .getAttribute(StyleConstants.ModelAttribute));
  87         ActionListener[] listeners = model.getActionListeners();
  88         int actionListenerNum = listeners.length;
  89         if (actionListenerNum != 1) {
  90             throw new RuntimeException(
  91                     "Expected single ActionListener object registered with "
  92                     + "DefaultButtonModel; found " + actionListenerNum
  93                     + " listeners registered.");
  94         }
  95 
  96         int changeListenerNum = model.getChangeListeners().length;
  97         if (changeListenerNum != 1) {
  98             throw new RuntimeException(
  99                     "Expected at most one ChangeListener object registered "
 100                     + "with DefaultButtonModel; found " + changeListenerNum
 101                     + " listeners registered.");
 102         }
 103         int itemListenerNum = model.getItemListeners().length;
 104         if (itemListenerNum != 1) {
 105             throw new RuntimeException(
 106                     "Expected at most one ItemListener object registered "
 107                     + "with DefaultButtonModel; found " + itemListenerNum
 108                     + " listeners registered.");
 109         }
 110     }
 111 
 112     public static void main(String[] args) throws Exception {
 113         final Robot robot = new Robot();
 114 
 115         SwingUtilities.invokeAndWait(new Runnable() {
 116 
 117             @Override
 118             public void run() {
 119                 setup();
 120             }
 121         });
 122         robot.waitForIdle();
 123         SwingUtilities.invokeAndWait(new Runnable() {
 124 
 125             @Override
 126             public void run() {
 127                 try {
 128                     verifySingleDefaultButtonModelListener();
 129                     doTest();
 130                     verifySingleDefaultButtonModelListener();
 131                 } finally {
 132                     frame.dispose();
 133                 }
 134             }
 135         });
 136     }
 137 }