Defining Java method on a JavaScript instance

[levi]

Hi,


I create a ListGrid instance via JavaScript in my own MyListGrid implementation.
But how can I tell the JS instance to use my own overriden getHeaderContextMenuItems method (written in Java) or pass that in some way?

class MyListGrid extends ListGrid {
  public MyListGrid(JavaScriptObject js) {
    super(js);
  }

 @Override
  protected MenuItem[] getHeaderContextMenuItems(Integer fieldNum) {
     ...
   }

   public static MyListGrid createMY() {
       return new MyListGrid(_createFromJS() ); 
   }

  private static native JavaScriptObject _createFromJS() /*- {
    return $wnd.isc.ListGrid.create({ 
        autoFetchData: false,
         ...
    });
   }-*/;
}

thanks,

[Isomorphic]

You are headed down a path that is tantamount to re-implementing SmartGWT's wrapping of SmartClient. Why?

[levi]

Yeah, I needed it to create the ListGrid with a predefined set of defaultFields coming from a DataSource wrapped as JSObject (can't use setDataSource).

I've built around that so that I now can instantiate the Java class, which now uses the override methods.

[atomatom]

I'm curious to know what your code looks like, if you don't mind sharing. I have been thinking about using pure Javascript for most of the UI and keeping some logic code in Java/GWT. Still not sure it is pretty.

http://code.google.com/webtoolkit/do...I.html#calling

http://code.google.com/p/gwt-exporter/