8036819: JAB: mneumonics not read for textboxes

Reviewed-by: alexsch
Contributed-by: vivi.an@oracle.com

src/share/classes/javax/swing/JComponent.java

@@ -3985,6 +3985,17 @@ public abstract class JComponent extends Container implements Serializable,
          * @since 1.4
          */
         public AccessibleKeyBinding getAccessibleKeyBinding() {
+            // Try to get the linked label's mnemonic if it exists
+            Object o = getClientProperty(JLabel.LABELED_BY_PROPERTY);
+            if (o instanceof Accessible){
+                AccessibleContext ac = ((Accessible) o).getAccessibleContext();
+                if (ac != null){
+                    AccessibleComponent comp = ac.getAccessibleComponent();
+                    if (! (comp instanceof AccessibleExtendedComponent))
+                        return null;
+                    return ((AccessibleExtendedComponent)comp).getAccessibleKeyBinding();
+                }
+            }
             return null;
         }
     } // inner class AccessibleJComponent

test/javax/swing/JTextField/8036819/bug8036819.java

+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @library ../../regtesthelpers
+ * @build Util
+ * @bug 8036819
+ * @summary JAB: mnemonics not read for textboxes
+ * @author Vivi An
+ * @run main bug8036819
+ */
+
+import javax.swing.*;
+import javax.swing.event.*;
+import java.awt.event.*;
+import java.awt.*;
+import sun.awt.SunToolkit;
+import javax.accessibility.*;
+
+public class bug8036819 {
+
+    public static volatile Boolean passed = false;
+
+    public static void main(String args[]) throws Throwable {
+        SwingUtilities.invokeAndWait(new Runnable() {
+            public void run() {
+                createAndShowGUI();
+            }
+        });
+
+        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
+        toolkit.realSync();
+
+        Robot robo = new Robot();
+        robo.setAutoDelay(300);
+
+        // Using mnemonic key to focus on the textfield
+        Util.hitMnemonics(robo, KeyEvent.VK_P);
+        toolkit.realSync();
+
+        if (!passed){
+            throw new RuntimeException("Test failed.");
+        }
+    }
+
+    private static void createAndShowGUI() {
+        JFrame mainFrame = new JFrame("bug 8036819");
+
+        JLabel usernameLabel = new JLabel("Username: ");
+        JTextField usernameField = new JTextField(20);
+        usernameLabel.setDisplayedMnemonic(KeyEvent.VK_U);
+        usernameLabel.setLabelFor(usernameField);
+
+        JLabel pwdLabel = new JLabel("Password: ");
+        JTextField pwdField = new JTextField(20);
+        pwdLabel.setDisplayedMnemonic(KeyEvent.VK_P);
+        pwdLabel.setLabelFor(pwdField);
+
+        pwdField.addKeyListener(
+            new KeyListener(){
+                @Override
+                public void keyPressed(KeyEvent keyEvent) {
+                }
+
+                @Override
+                public void keyTyped(KeyEvent keyEvent) {
+                }
+
+                @Override
+                public void keyReleased(KeyEvent keyEvent){
+                    JComponent comp = (JComponent) pwdField;
+                    AccessibleContext ac = comp.getAccessibleContext();
+                    AccessibleExtendedComponent aec = (AccessibleExtendedComponent)ac.getAccessibleComponent();
+                    AccessibleKeyBinding akb = aec.getAccessibleKeyBinding();
+                    if (akb != null){
+                         int count = akb.getAccessibleKeyBindingCount();
+                        if (count != 1){
+                            passed = false;
+                            return;
+                        }
+
+                        // there is 1 accessible key for the text field
+                        System.out.println("Retrieved AccessibleKeyBinding for textfield " + count);
+
+                        // the key code is KeyEvent.VK_P
+                        Object o = akb.getAccessibleKeyBinding(0);
+                        if (o instanceof KeyStroke){
+                            javax.swing.KeyStroke key = (javax.swing.KeyStroke)o;
+                            System.out.println("keystroke is " + key.getKeyCode());
+                            if (key.getKeyCode() == KeyEvent.VK_P)
+                                passed = true;
+                        }
+                    }
+                }
+            }
+        );
+
+        mainFrame.getContentPane().add(usernameLabel);
+        mainFrame.getContentPane().add(usernameField);
+        mainFrame.getContentPane().add(pwdLabel);
+        mainFrame.getContentPane().add(pwdField);
+
+        mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        mainFrame.setLayout(new FlowLayout(FlowLayout.LEFT));
+
+        mainFrame.setSize(200, 200);
+        mainFrame.setLocation(200, 200);
+        mainFrame.setVisible(true);
+        mainFrame.toFront();
+    }
+ }