7097771: setEnabled does not work for components in disabled containers.

Reviewed-by: art, anthony

src/solaris/classes/sun/awt/X11/XComponentPeer.java

@@ -82,7 +82,7 @@ public class XComponentPeer extends XWindow implements ComponentPeer, DropTarget
 
     boolean paintPending = false;
     boolean isLayouting = false;
-    boolean enabled;
+    private boolean enabled;
 
     // Actually used only by XDecoratedPeer
     protected int boundsOperation;
@@ -128,9 +128,6 @@ public class XComponentPeer extends XWindow implements ComponentPeer, DropTarget
     }
     void postInit(XCreateWindowParams params) {
         super.postInit(params);
-        Color c;
-        Font  f;
-        Cursor cursor;
 
         pSetCursor(target.getCursor());
 
@@ -143,19 +140,7 @@ public class XComponentPeer extends XWindow implements ComponentPeer, DropTarget
             reshape(r.x, r.y, r.width, r.height);
         }
 
-        enabled = target.isEnabled();
-
-        // If any of our heavyweight ancestors are disable, we should be too
-        // See 6176875 for more information
-        Component comp = target;
-        while( !(comp == null || comp instanceof Window) ) {
-            comp = comp.getParent();
-            if( comp != null && !comp.isEnabled() && !comp.isLightweight() ){
-                setEnabled(false);
-                break;
-            }
-        }
-        enableLog.fine("Initial enable state: {0}", Boolean.valueOf(enabled));
+        setEnabled(target.isEnabled());
 
         if (target.isVisible()) {
             setVisible(true);
@@ -384,45 +369,48 @@ public class XComponentPeer extends XWindow implements ComponentPeer, DropTarget
         setVisible(false);
     }
 
-
     /**
      * @see java.awt.peer.ComponentPeer
      */
-    public void setEnabled(boolean value) {
-        enableLog.fine("{0}ing {1}", (value?"Enabl":"Disabl"), this);
-        boolean repaintNeeded = (enabled != value);
-        enabled = value;
+    public void setEnabled(final boolean value) {
+        if (enableLog.isLoggable(PlatformLogger.FINE)) {
+            enableLog.fine("{0}ing {1}", (value ? "Enabl" : "Disabl"), this);
+        }
+        boolean status = value;
+        // If any of our heavyweight ancestors are disable, we should be too
+        // See 6176875 for more information
+        final Container cp = SunToolkit.getNativeContainer(target);
+        if (cp != null) {
+            status &= ((XComponentPeer) cp.getPeer()).isEnabled();
+        }
+        synchronized (getStateLock()) {
+            if (enabled == status) {
+                return;
+            }
+            enabled = status;
+        }
+
         if (target instanceof Container) {
-            Component list[] = ((Container)target).getComponents();
-            for (int i = 0; i < list.length; ++i) {
-                boolean childEnabled = list[i].isEnabled();
-                ComponentPeer p = list[i].getPeer();
-                if ( p != null ) {
-                    p.setEnabled(value && childEnabled);
+            final Component[] list = ((Container) target).getComponents();
+            for (final Component child : list) {
+                final ComponentPeer p = child.getPeer();
+                if (p != null) {
+                    p.setEnabled(status && child.isEnabled());
                 }
             }
         }
-        if (repaintNeeded) {
-            repaint();
-        }
+        repaint();
     }
 
     //
     // public so aw/Window can call it
     //
-    public boolean isEnabled() {
-        return enabled;
-    }
-
-
-
-    public void enable() {
-        setEnabled(true);
+    public final boolean isEnabled() {
+        synchronized (getStateLock()) {
+            return enabled;
+        }
     }
 
-    public void disable() {
-        setEnabled(false);
-    }
     @Override
     public void paint(final Graphics g) {
         super.paint(g);

test/java/awt/Component/7097771/bug7097771.java

+/*
+ * Copyright (c) 2012, 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 sun.awt.SunToolkit;
+import test.java.awt.regtesthelpers.Util;
+
+import java.awt.AWTException;
+import java.awt.Button;
+import java.awt.Frame;
+import java.awt.Robot;
+import java.awt.Toolkit;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+/*
+  @test
+  @bug 7097771
+  @summary setEnabled does not work for components in disabled containers.
+  @author sergey.bylokhov@oracle.com: area=awt.component
+  @library ../../regtesthelpers
+  @build Util
+  @run main bug7097771
+*/
+public final class bug7097771 extends Frame implements ActionListener {
+
+    private static volatile boolean action;
+
+    public static void main(final String[] args) throws AWTException {
+        final bug7097771 frame = new bug7097771();
+        frame.setSize(300, 300);
+        frame.setLocationRelativeTo(null);
+        final Button button = new Button();
+        button.addActionListener(frame);
+        frame.add(button);
+        frame.setVisible(true);
+        sleep();
+        frame.setEnabled(false);
+        button.setEnabled(false);
+        button.setEnabled(true);
+        sleep();
+        Util.clickOnComp(button, new Robot());
+        sleep();
+        frame.dispose();
+        if (action) {
+            throw new RuntimeException("Button is not disabled.");
+        }
+    }
+
+    @Override
+    public void actionPerformed(final ActionEvent e) {
+        action = true;
+    }
+
+    private static void sleep() {
+        ((SunToolkit) Toolkit.getDefaultToolkit()).realSync();
+        try {
+            Thread.sleep(1000);
+        } catch (InterruptedException ignored) {
+        }
+    }
+}