8031485: [macosx] Combo box consuming escape key events

Reviewed-by: serb, alexsch

src/macosx/classes/com/apple/laf/AquaComboBoxUI.java

@@ -510,15 +510,17 @@ public class AquaComboBoxUI extends BasicComboBoxUI implements Sizeable {
         }
     };
 
-    private static Action hideAction = new AbstractAction() {
+    private final Action hideAction = new AbstractAction() {
         @Override
         public void actionPerformed(final ActionEvent e) {
             final JComboBox comboBox = (JComboBox)e.getSource();
+            comboBox.firePopupMenuCanceled();
+            comboBox.setPopupVisible(false);
+        }
 
-            if (comboBox.isPopupVisible()) {
-                comboBox.firePopupMenuCanceled();
-                comboBox.setPopupVisible(false);
-            }
+        @Override
+        public boolean isEnabled() {
+            return comboBox.isPopupVisible() && super.isEnabled();
         }
     };
 

test/javax/swing/JComboBox/ConsumedEscTest/ConsumedEscTest.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.
+ */
+
+import javax.swing.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.KeyEvent;
+import java.awt.Robot;
+import java.awt.Toolkit;
+import sun.awt.SunToolkit;
+
+/*
+  @test
+  @bug 8031485
+  @summary Combo box consuming escape and enter key events
+  @author Petr Pchelko
+  @run main ConsumedEscTest
+*/
+public class ConsumedEscTest {
+    private static volatile JFrame frame;
+    private static volatile boolean passed = false;
+
+    public static void main(String... args) throws Exception {
+        try {
+            SwingUtilities.invokeAndWait(() -> {
+                frame = new JFrame();
+                JComboBox<String> combo = new JComboBox<>(new String[]{"one", "two", "three"});
+                JPanel panel = new JPanel();
+                panel.add(combo);
+                combo.requestFocusInWindow();
+                frame.setBounds(100, 150, 300, 100);
+                addAction(panel);
+                frame.add(panel);
+                frame.setVisible(true);
+            });
+
+            Robot robot = new Robot();
+            robot.waitForIdle();
+            ((SunToolkit)Toolkit.getDefaultToolkit()).realSync();
+            robot.keyPress(KeyEvent.VK_ESCAPE);
+            robot.waitForIdle();
+            ((SunToolkit)Toolkit.getDefaultToolkit()).realSync();
+            robot.keyRelease(KeyEvent.VK_ESCAPE);
+            robot.waitForIdle();
+            ((SunToolkit)Toolkit.getDefaultToolkit()).realSync();
+            if (!passed) {
+                throw new RuntimeException("FAILED: ESC was consumed by combo box");
+            }
+        } finally {
+            if (frame != null) {
+                frame.dispose();
+            }
+        }
+    }
+
+    private static void addAction(JComponent comp) {
+        KeyStroke k = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
+        Object actionKey = "cancel";
+        comp.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(k, actionKey);
+        Action cancelAction = new AbstractAction() {
+            @Override
+            public void actionPerformed(ActionEvent ev) {
+                passed = true;
+            }
+        };
+        comp.getActionMap().put(actionKey, cancelAction);
+    }
+
+}