Emit dgrid-page-loaded when page finishes loading

I needed a way to know that a page finished loading so that I can do some actions after.

More specifically, when using the dgrid as in http://dojofoundation.org/packages/dgrid/demos/multiview/ (with rows that expand an present some additional content) combined with Pagination extension, if I want to    keep(or "remeber") the expand state or rows between pages navigation then I need way to know the page finished loading (equivalent with dgrid-refresh-completed).

The code is copied from the refresh() function in the same file, I just removed the "results: ..." .
I'm not sure what's best: to emit a new event like I did or to emit the same dgrid-refresh-complete.