8021253: JFileChooser does not react on pressing enter since java 7

Reviewed-by: malenkov

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

@@ -362,6 +362,7 @@ public class JFileChooser extends JComponent implements Accessible {
      */
     protected void setup(FileSystemView view) {
         installShowFilesListener();
+        installHierarchyListener();
 
         if(view == null) {
             view = FileSystemView.getFileSystemView();
@@ -374,6 +375,22 @@ public class JFileChooser extends JComponent implements Accessible {
         enableEvents(AWTEvent.MOUSE_EVENT_MASK);
     }
 
+    private void installHierarchyListener() {
+        addHierarchyListener(new HierarchyListener() {
+            @Override
+            public void hierarchyChanged(HierarchyEvent e) {
+                if ((e.getChangeFlags() & HierarchyEvent.PARENT_CHANGED)
+                        == HierarchyEvent.PARENT_CHANGED) {
+                    JFileChooser fc = JFileChooser.this;
+                    JRootPane rootPane = SwingUtilities.getRootPane(fc);
+                    if (rootPane != null) {
+                        rootPane.setDefaultButton(fc.getUI().getDefaultButton(fc));
+                    }
+                }
+            }
+        });
+    }
+
     private void installShowFilesListener() {
         // Track native setting for showing hidden files
         Toolkit tk = Toolkit.getDefaultToolkit();
@@ -801,7 +818,6 @@ public class JFileChooser extends JComponent implements Accessible {
                 dialog.getRootPane().setWindowDecorationStyle(JRootPane.FILE_CHOOSER_DIALOG);
             }
         }
-        dialog.getRootPane().setDefaultButton(ui.getDefaultButton(this));
         dialog.pack();
         dialog.setLocationRelativeTo(parent);
 

test/javax/swing/JFileChooser/8021253/bug8021253.java

+/*
+ * Copyright (c) 2013, 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.
+ */
+
+import java.io.File;
+import java.io.IOException;
+import java.awt.BorderLayout;
+import java.awt.Robot;
+import java.awt.Toolkit;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.KeyEvent;
+import javax.swing.JFileChooser;
+import javax.swing.JFrame;
+import javax.swing.SwingUtilities;
+import sun.awt.SunToolkit;
+
+/**
+ * @test
+ * @bug 8021253
+ * @author Alexander Scherbatiy
+ * @summary JFileChooser does not react on pressing enter since java 7
+ * @run main bug8021253
+ */
+
+public class bug8021253 {
+
+    private static volatile boolean defaultKeyPressed;
+    private static JFileChooser fileChooser;
+    private static File file;
+
+    public static void main(String[] args) throws Exception {
+
+        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
+        Robot robot = new Robot();
+        robot.setAutoDelay(50);
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+            public void run() {
+                createAndShowGUI();
+            }
+        });
+
+        toolkit.realSync();
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+            public void run() {
+                fileChooser.setSelectedFile(file);
+            }
+        });
+
+        toolkit.realSync();
+
+        robot.keyPress(KeyEvent.VK_ENTER);
+        robot.keyRelease(KeyEvent.VK_ENTER);
+        toolkit.realSync();
+
+        if (!defaultKeyPressed) {
+            throw new RuntimeException("Default button is not pressed");
+        }
+    }
+
+    private static void createAndShowGUI() {
+
+        file = getTempFile();
+
+        final JFrame frame = new JFrame("Test");
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.setSize(200, 300);
+
+        fileChooser = new JFileChooser(file.getParentFile());
+        fileChooser.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                defaultKeyPressed = true;
+                frame.dispose();
+            }
+        });
+
+        frame.getContentPane().add(BorderLayout.CENTER, fileChooser);
+        frame.setSize(fileChooser.getPreferredSize());
+        frame.setVisible(true);
+    }
+
+    private static File getTempFile() {
+        try {
+            File temp = File.createTempFile("test", ".txt");
+            temp.deleteOnExit();
+            return temp;
+        } catch (IOException ex) {
+            throw new RuntimeException(ex);
+        }
+    }
+}