Code review comment for lp:~albaguirre/mir/add-menu-api

> I think we need to guarantee a bit more semantics to the client for this.
> Specifically, I think we want to guarantee a rectangle that the surface will
> share an edge with.
>
> If you check out how GTK currently handles menus (for example, try
> GTK_MODULES= gnome-calculator) the mode menu pops up so that one of its edges
> is against the “mode” label. It would seem that this API is insufficiently
> expressive to support that?
>
> Even if we don't want to guarantee that - maybe phone shells want to ignore
> that? - I think we need to support that.
>
> Maybe the API needs to be something like:
> mir_connection_create_spec_for_menu_surface(connection, width, height, parent,
> adjacency_rect, format)?

I don't understand what adjacency rect is supposed to represent, could you elaborate?