8013773: requestFocusInWindow to a disabled component prevents window of getting focused

Reviewed-by: leonidr, alexsch

src/share/classes/java/awt/DefaultKeyboardFocusManager.java

@@ -559,6 +559,7 @@ public class DefaultKeyboardFocusManager extends KeyboardFocusManager {
                         } else {
                             restoreFocus(fe, newFocusedWindow);
                         }
+                        setMostRecentFocusOwner(newFocusedWindow, null); // see: 8013773
                     }
                     break;
                 }

test/java/awt/Focus/ResetMostRecentFocusOwnerTest/ResetMostRecentFocusOwnerTest.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.
+ */
+
+/*
+  @test
+  @bug      8013773
+  @summary  Tests that disabled component is not retained as most recent focus owner.
+  @author   Anton.Tarasov: area=awt.focus
+  @library  ../../regtesthelpers
+  @build    Util
+  @run      main ResetMostRecentFocusOwnerTest
+*/
+
+import java.applet.Applet;
+import java.awt.AWTEvent;
+import java.awt.FlowLayout;
+import java.awt.Robot;
+import java.awt.Toolkit;
+import java.awt.event.AWTEventListener;
+import java.awt.event.FocusEvent;
+import java.awt.event.WindowEvent;
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import test.java.awt.regtesthelpers.Util;
+
+public class ResetMostRecentFocusOwnerTest extends Applet {
+
+    public static void main(String[] args) {
+        ResetMostRecentFocusOwnerTest app = new ResetMostRecentFocusOwnerTest();
+        app.init();
+        app.start();
+    }
+
+    @Override
+    public void start() {
+
+        Toolkit.getDefaultToolkit().addAWTEventListener(new AWTEventListener() {
+            public void eventDispatched(AWTEvent e) {
+                System.err.println(e);
+            }
+        }, FocusEvent.FOCUS_EVENT_MASK | WindowEvent.WINDOW_FOCUS_EVENT_MASK);
+
+        boolean gained = false;
+        final Robot robot = Util.createRobot();
+
+        JFrame frame1 = new JFrame("Main Frame");
+        final JButton b1 = new JButton("button1");
+        frame1.add(b1);
+        frame1.pack();
+        frame1.setLocation(0, 300);
+
+        Util.showWindowWait(frame1);
+
+        final JFrame frame2 = new JFrame("Test Frame");
+        final JButton b2 = new JButton("button2");
+        frame2.add(b2);
+        frame2.pack();
+        frame2.setLocation(300, 300);
+
+        b2.setEnabled(false);
+        b2.requestFocus();
+
+        Util.showWindowWait(frame2);
+
+        robot.delay(500);
+
+        //
+        // It's expeced that the focus is restored to <button1>.
+        // If not, click <button1> to set focus on it.
+        //
+        if (!b1.hasFocus()) {
+            gained = Util.trackFocusGained(b1, new Runnable() {
+                public void run() {
+                    Util.clickOnComp(b1, robot);
+                }
+            }, 5000, false);
+
+            if (!gained) {
+                throw new RuntimeException("Unexpected state: focus is not on <button1>");
+            }
+        }
+
+        robot.delay(500);
+
+        //
+        // Click <button2>, check that focus is set on the parent frame.
+        //
+        gained = false;
+        gained = Util.trackFocusGained(frame2, new Runnable() {
+            public void run() {
+                Util.clickOnComp(b2, robot);
+            }
+        }, 5000, false);
+
+        if (!gained) {
+            throw new RuntimeException("Test failed: focus wasn't set to <frame2>");
+        }
+
+        System.out.println("Test passed.");
+    }
+}