6708392: Provide internal API to create OverrideRedirect windows, XToolkit

Summary: SunToolkit.setOverrideRedirect() method is introduced
Reviewed-by: mlapshin, yan

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

@@ -26,7 +26,9 @@
 package javax.swing;
 
 import java.awt.*;
+
 import sun.awt.ModalExclude;
+import sun.awt.SunToolkit;
 
 /**
  * Popups are used to display a <code>Component</code> to the user, typically
@@ -225,7 +227,12 @@ public class Popup {
         HeavyWeightWindow(Window parent) {
             super(parent);
             setFocusableWindowState(false);
-            setName("###overrideRedirect###");
+            Toolkit tk = Toolkit.getDefaultToolkit();
+            if (tk instanceof SunToolkit) {
+                // all the short-lived windows like Popups should be
+                // OverrideRedirect on X11 platforms
+                ((SunToolkit)tk).setOverrideRedirect(this);
+            }
             // Popups are typically transient and most likely won't benefit
             // from true double buffering.  Turn it off here.
             getRootPane().setUseTrueDoubleBuffering(false);

src/share/classes/sun/awt/SunToolkit.java

 /*
- * Copyright 1997-2007 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 1997-2008 Sun Microsystems, Inc.  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
@@ -852,6 +852,15 @@ public abstract class SunToolkit extends Toolkit
         return AccessController.doPrivileged(new GetBooleanAction("sun.awt.erasebackgroundonresize"));
     }
 
+
+    /**
+     * Makes the window OverrideRedirect, on X11 platforms. See
+     * ICCCM specification for more details about OverrideRedirect
+     * windows. Implemented in XToolkit, no-op in WToolkit.
+     */
+    public void setOverrideRedirect(Window target) {
+    }
+
     static SoftCache imgCache = new SoftCache();
 
     static synchronized Image getImageFromHash(Toolkit tk, URL url) {

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

@@ -97,6 +97,11 @@ public final class XToolkit extends UNIXToolkit implements Runnable {
     static int awt_multiclick_time;
     static boolean securityWarningEnabled;
 
+    // WeakSet should be used here, but there is no such class
+    // in JDK (at least in JDK6 and earlier versions)
+    private WeakHashMap<Window, Boolean> overrideRedirectWindows =
+        new WeakHashMap<Window, Boolean>();
+
     private static int screenWidth = -1, screenHeight = -1; // Dimensions of default screen
     static long awt_defaultFg; // Pixel
     private static XMouseInfoPeer xPeer;
@@ -1248,6 +1253,19 @@ public final class XToolkit extends UNIXToolkit implements Runnable {
         }
     }
 
+    @Override
+    public void setOverrideRedirect(Window target) {
+        synchronized (overrideRedirectWindows) {
+            overrideRedirectWindows.put(target, true);
+        }
+    }
+
+    public boolean isOverrideRedirect(Window target) {
+        synchronized (overrideRedirectWindows) {
+            return overrideRedirectWindows.containsKey(target);
+        }
+    }
+
     static void dumpPeers() {
         if (log.isLoggable(Level.FINE)) {
             log.fine("Mapped windows:");

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

@@ -129,6 +129,7 @@ class XWindowPeer extends XPanelPeer implements WindowPeer,
     private static final int MAXIMUM_BUFFER_LENGTH_NET_WM_ICON = (2<<15) - 1;
 
     void preInit(XCreateWindowParams params) {
+        target = (Component)params.get(TARGET);
         params.put(REPARENTED,
                    Boolean.valueOf(isOverrideRedirect() || isSimpleWindow()));
         super.preInit(params);
@@ -1117,6 +1118,7 @@ class XWindowPeer extends XPanelPeer implements WindowPeer,
 
     boolean isOverrideRedirect() {
         return (XWM.getWMID() == XWM.OPENLOOK_WM ? true : false) ||
+            ((XToolkit)Toolkit.getDefaultToolkit()).isOverrideRedirect((Window)target) ||
             XTrayIconPeer.isTrayIconStuffWindow((Window)target);
     }