unable to use external javascript in GWT

Question

I want to use goJS with GWT. I downloaded GOJS javascript and put it in the sampleproject folder under war where sampleproject.nocache.js and sampleproject.devmode.js is present. In sampleproject.html i added

<script type="text/javascript" language="javascript" src="sampleproject/go.js"> 
</script>

In one of the view i used

public static native void initGo() /*-{
    var $$ = go.GraphObject.make;
}-*/;

when i call this function , exception is thrown:

com.google.gwt.event.shared.UmbrellaException: Exception caught: (ReferenceError) @com.amazon.ops.client.OpsMenuView::initGo()([]): go is not defined.

Can anyone please help me with this?

Answer 1

Try prefixing the js call with $wnd. , eg:

var $$ = $wnd.go.GraphObject.make;

As explained here , GWT runs in a nested frame and you must use $wnd to refer to the top level window.

Answer 2

Make sure that you put this statement:

<script type="text/javascript" language="javascript" src="sampleproject/go.js"> 
</script>

before <script src="sampleproject.nocache.js"> statement.