Fix bug # 48320: Directories displayed twice in file:/// URLs. r=me

xpfe/components/directory/directory.js

@@ -48,22 +48,26 @@ function Init()
 {
     debug("directory.js: Init()\n");
 
+    var tree = document.getElementById('tree');
+
     // Initialize the tree's base URL to whatever the HTTPIndex is rooted at
     var baseURI = HTTPIndex.BaseURL;
 
+    if (baseURI && (baseURI.indexOf("ftp://") == 0))
+    {
         // fix bug # 37102: if its a FTP directory
         // ensure it ends with a trailing slash
-    if (baseURI && (baseURI.indexOf("ftp://") == 0) &&
+    	if (baseURI.substr(baseURI.length - 1) != "/")
-    	(baseURI.substr(baseURI.length - 1) != "/"))
     	{
         	debug("append traiing slash to FTP directory URL\n");
         	baseURI += "/";
         }
-    debug("base URL = " + baseURI + "\n");
 
-    // Note: Add the HTTPIndex datasource into the tree
+        // Note: DON'T add the HTTPIndex datasource into the tree
-    var tree = document.getElementById('tree');
+        // for file URLs, only do it for FTP URLs; the "rdf:files"
+        // datasources handles file URLs
         tree.database.AddDataSource(HTTPIndex.DataSource);
+    }
 
     // Note: set encoding BEFORE setting "ref" (important!)
     var RDF = Components.classes["component://netscape/rdf/rdf-service"].getService();

xpfe/components/directory/directory.xul

@@ -37,7 +37,7 @@
   <script src="chrome://communicator/content/directory/directory.js"></script>
 
   <tree id="tree" datasources="rdf:files" flex="1" style="height:0px;"
-      container="true" open="true"
+      container="true" open="true" flags="dont-test-empty"
       ondraggesture="return BeginDragTree(event);">
       <template>
         <treechildren flex="1">