FileHandler2: fixed handling of target-less menus

vispa/static/js/filehandler2.js

@@ -22,15 +22,10 @@ define([
 
     makeMenu: function(info) {
       var menu = this._filterMenu(this.handlersBase, info);
-      // need the open with menu?
-      if (!info.data) { // nothing directly hit (just in a folder)
-        var n = "", p = info.pathBase.split("/");
-        while((n = p.pop()) == "");
-        info.pathBase = p.join("/") || "/";
-        n = n || "/";
+      if (!info.data && !info.items) { // nothing directly hit (just in a folder)
         info.data = {
-          root: n,
-          name: n,
+          root: ".",
+          name: ".",
           ext: "",
           type: "d",
         };