Re: [Vala] GLib.Menu subclass

[Luc Chante <luc chante gmail com>]

Hi,

https://developer.gnome.org/gio/stable/GMenu.html#GMenu.other_details

I'm not sure that GLib.Menu made to be overridable.
You could decorate it : extend MenuModel, with a private property which is
a Menu, and override every methods of MenuModel by calling the private
property.

private GLib.Menu internal_men;

public override int get_n_items() {
    return this.internal_menu.get_n_items();
}

Le mer. 29 juin 2016 à 08:44, Ondrej Tuma <konference webjet cz> a écrit :

> Hi all,
>
> I try to create GLib.Menu subclass, but it fails. Here is code:
>
> public class MyMenu : Menu {
>     public MyMenu(){
>         append ("Item label", "app.my-action");
>     }
> }
>
> And here is error:
>
> /home/mcbig/tmp-dev/vala/gmenu.vala.c:39:8: error: field ‘parent_instance’
> has incomplete type
>   GMenu parent_instance;
>         ^
> /home/mcbig/tmp-dev/vala/gmenu.vala.c:44:2: error: unknown type name
> ‘GMenuClass’
>   GMenuClass parent_class;
>   ^
> error: cc exited with status 256
>
> Yes, there is not GMenuClass in gio/gio.h. I'm not sure if this problem
> is in gio/gio.h or gio-2.0.vapi. I got this error on debian Jessie
> (valac-0.26).
> What I see, glibmm define it's GMenuClass in it's giomm/menu.h.
>
> Thanks a lot
>
> --
> Ondřej Tůma <mcbig zeropage cz>
> www: http://ipv6.mcbig.cz   jabber: mcbig jabber cz   twitter: mcbig_cz
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