I am looking for some sample Java code demonstrating how to get AJAX content displayed into a custom font using Typeface.js within a GWT app. I have tried a little bit by calling the following native function

    native void Typeface_renderDocument() /*-{ 
        $wnd._typeface_js.renderDocument();
    }-*/;

    - after having filled the relevant widget with the AJAX content, and
    - after calling the following function on the widget :

      void applyTypeface(Widget widget) {
          widget.addStyleName("typeface-js");
          widget.getElement().getStyle().setProperty("fontFamily", "Helvetiker");
          Typeface_renderDocument();
      }

...where Helvetiker is a custom font (actually available from Typeface.js fonts.
But that didn't work.

I am looking forward to any suggestions since I am bit stuck here.