8032878: Editable combos in table do not behave as expected

Reviewed-by: alexp, alexsch
Contributed-by: alexey.ivanov@oracle.com

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

@@ -1415,6 +1415,28 @@ implements ItemSelectable,ListDataListener,ActionListener, Accessible {
         super.processKeyEvent(e);
     }
 
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected boolean processKeyBinding(KeyStroke ks, KeyEvent e, int condition, boolean pressed) {
+        if (super.processKeyBinding(ks, e, condition, pressed)) {
+            return true;
+        }
+
+        if (!isEditable() || condition != WHEN_FOCUSED || getEditor() == null
+                || !Boolean.TRUE.equals(getClientProperty("JComboBox.isTableCellEditor"))) {
+            return false;
+        }
+
+        Component editorComponent = getEditor().getEditorComponent();
+        if (editorComponent instanceof JComponent) {
+            JComponent component = (JComponent) editorComponent;
+            return component.processKeyBinding(ks, e, WHEN_FOCUSED, pressed);
+        }
+        return false;
+    }
+
     /**
      * Sets the object that translates a keyboard character into a list
      * selection. Typically, the first selection with a matching first

test/javax/swing/JComboBox/8032878/bug8032878.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
+ * @bug 8032878
+ * @summary Checks that JComboBox as JTable cell editor processes key events
+ *          even where setSurrendersFocusOnKeystroke flag in JTable is false and
+ *          that it does not lose the first key press where the flag is true.
+ * @library ../../regtesthelpers
+ * @build Util
+ * @author Alexey Ivanov
+ */
+
+import java.awt.*;
+import java.awt.event.KeyEvent;
+import javax.swing.*;
+import javax.swing.text.JTextComponent;
+
+import sun.awt.SunToolkit;
+
+public class bug8032878 implements Runnable {
+    private static final String ONE = "one";
+    private static final String TWO = "two";
+    private static final String THREE = "three";
+
+    private static final String EXPECTED = "one123";
+
+    private final Robot robot;
+
+    private JFrame frame;
+    private JComboBox cb;
+
+    private volatile boolean surrender;
+    private volatile String text;
+
+    public static void main(String[] args) throws Exception {
+        final bug8032878 test = new bug8032878();
+
+        test.test(false);
+        test.test(true);
+    }
+
+    public bug8032878() throws AWTException {
+        robot = new Robot();
+        robot.setAutoDelay(100);
+    }
+
+    private void setupUI() {
+        frame = new JFrame();
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+        JTable table = new JTable(new String[][] {{ONE}, {TWO}, {THREE}},
+                                  new String[] { "#"});
+        table.setSurrendersFocusOnKeystroke(surrender);
+
+        cb = new JComboBox(new String[]{ONE, TWO, THREE});
+        cb.setEditable(true);
+        DefaultCellEditor comboEditor = new DefaultCellEditor(cb);
+        comboEditor.setClickCountToStart(1);
+        table.getColumnModel().getColumn(0).setCellEditor(comboEditor);
+        frame.add(table);
+
+        frame.pack();
+        frame.setVisible(true);
+    }
+
+    private void test(final boolean flag) throws Exception {
+        try {
+            surrender = flag;
+            SwingUtilities.invokeAndWait(this);
+
+            runTest();
+            checkResult();
+        } finally {
+            if (frame != null) {
+                frame.dispose();
+            }
+        }
+    }
+
+    private void runTest() throws Exception {
+        realSync();
+        // Select 'one'
+        Util.hitKeys(robot, KeyEvent.VK_TAB);
+        realSync();
+        Util.hitKeys(robot, KeyEvent.VK_1);
+        Util.hitKeys(robot, KeyEvent.VK_2);
+        Util.hitKeys(robot, KeyEvent.VK_3);
+        Util.hitKeys(robot, KeyEvent.VK_ENTER);
+        realSync();
+    }
+
+    private void checkResult() throws Exception {
+        SwingUtilities.invokeAndWait(new Runnable() {
+            public void run() {
+                text = ((JTextComponent) cb.getEditor().getEditorComponent()).getText();
+            }
+        });
+        if (text.equals(EXPECTED)) {
+            System.out.println("Test with surrender = " + surrender + " passed");
+        } else {
+            System.out.println("Test with surrender = " + surrender + " failed");
+            throw new RuntimeException("Expected value in JComboBox editor '" +
+                    EXPECTED + "' but found '" + text + "'.");
+        }
+    }
+
+    private static void realSync() {
+        ((SunToolkit) (Toolkit.getDefaultToolkit())).realSync();
+    }
+
+    @Override
+    public void run() {
+        setupUI();
+    }
+}