Re: Webkit2 porting

[Robert Schroll <rschroll gmail com>]

On Wed, Oct 15, 2014 at 2:36 PM, Evan Nemerson <evan coeus-group com> 
wrote:
> Vala is strongly (and statically) typed, so it needs to know what the
> delegate you pass to the closure argument should look like.  GObject
> Introspection doesn't include that information for for GClosures (bug
> #636812) so we have to set the type for GClosure arguments in 
> metadata.
> It's not difficult to do, but someone who actually knows the API needs
> to tell us what that type should be (or it needs to be documented).
>
> The VAPI just needs to change from
>
>         public bool add_event_listener_with_closure (string 
> event_name,
>         GLib.Closure handler, bool use_capture);
>
> to something like
>
>         public bool add_event_listener_with_closure (string 
> event_name,
>         [CCode (type = "GClosure*")] owned WebKit.DOM.FooFunc handler,
>         bool use_capture);
>
> I just need to know what to put for instead of WebKit.DOM.FooFunc and 
> I
> can push a change to the VAPI.  Preferably a typedef in C, but if need
> be we can also create a delegate type from scratch in the VAPI.

Thanks for setting me straight on this.  I tried to create my own 
delegate in the VAPI and managed to get it to compile.  But it crashed 
the web process on execution.  (As promised, the UI process continued!) 
So I'm hoping that a WebKitGTK guru can enlighten us on the signature 
of the delegate.

Thanks again,
Robert