Bug 8815. A feeble attempt to fix this bug. There are still some redraw problems with the tree widget that make it _seem_ like this isn't fixed. But it is. Fixed. Really.

rdf/resources/flash.js

@@ -74,11 +74,12 @@ function Init()
 
         dump('adding "' + service.Value + '" to the tree\n');
         try {
-            // create a new RDF/XML datasource. This will,
-            // unfortunately, force it to be read synchronously the
-            // first time around.
+            // Create a new RDF/XML datasource. If this is a 'remote'
+            // datasource (e.g., a 'http:' URL), it will be loaded
+            // asynchronously.
             var flashservice = RDF.GetDataSource(service.Value);
             flashservice = flashservice.QueryInterface(Components.interfaces.nsIRDFDataSource);
+
             // Add it to the tree control's composite datasource.
             tree.database.AddDataSource(flashservice);
 
@@ -87,7 +88,6 @@ function Init()
                                    RDF.GetResource('http://home.netscape.com/NC-rdf#poll-interval'),
                                    true);
 
-            dump('poll interval = "' + pollInterval + '"\n');
             if (pollInterval)
                 pollInterval = pollInterval.QueryInterface(Components.interfaces.nsIRDFLiteral);
 

rdf/resources/flash.xul

@@ -1,4 +1,23 @@
 <?xml version="1.0"?> <!-- -*- Mode: SGML -*- -->
+<!--
+
+  The contents of this file are subject to the Netscape Public License
+  Version 1.0 (the "NPL"); you may not use this file except in
+  compliance with the NPL.  You may obtain a copy of the NPL at
+  http://www.mozilla.org/NPL/
+
+  Software distributed under the NPL is distributed on an "AS IS" basis,
+  WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+  for the specific language governing rights and limitations under the
+  NPL.
+
+  The Initial Developer of this code under the NPL is Netscape
+  Communications Corporation.  Portions created by Netscape are
+  Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+  Reserved.
+
+-->
+
 <?xml-stylesheet href="resource:/res/samples/xul.css" type="text/css"?>
 <?xml-stylesheet href="resource:/res/rdf/sidebar.css" type="text/css"?>
 <?xml-stylesheet href="resource:/res/rdf/flash.css" type="text/css"?>
@@ -19,7 +38,7 @@
 
   <tree id="tree"
         flex="100%"
-        datasources="rdf:bookmarks"
+        datasources="rdf:null"
         onclick="OpenURL(event.target.parentNode.parentNode);">
 
     <template>
@@ -58,6 +77,6 @@
       </treerow>
     </treehead>
 
-    <treechildren id="NC:FlashRoot" rdf:containment="http://home.netscape.com/NC-rdf#child" />
+    <treechildren ref="NC:FlashRoot" rdf:containment="http://home.netscape.com/NC-rdf#child" open="true" />
   </tree>
 </window>