Re: GtkAssistant flow question

[Pierre Wieser <pwieser trychlos org>]

> Date: Sun, 12 Jul 2009 13:25:48 +0200 (CEST)
> From: pwieser trychlos org
> Subject: GtkAssistant flow question
> To: gtk-app-devel-list gnome org
>
> Hi,
>
> I have a simple GtkAssistant with :
> - one intro page
> - two content pages
> - one confirm page
> - one summary page.
>
> All works fine : the confirm page has 'Cancel' and 'Apply' buttons,
> and the summary page has only a 'Close' button.
>
> Of course (or is it only obvious for me ?), I'd wish display on the
> summary page the result of the work done when the user has clicked on
> the Apply button.
>
> But it appears that the next page is computed, and so the 'prepare'
> message is sent, _before_ the 'apply' message is itself emitted.
>
> So, when I handle the prepare message for the summary page, I don't
> know what is the result of the operations, as they have not be done
> yet.
>
> As a work-around, I have to do the work at the very beginning of the
> prepare handler.
>
> And so handling the apply message becomes useless.
>
> IMHO, the usual programmer does want 'apply' its operations before
> 'preparing' the display of the summary page.
>
> As the GtkAssistant cannot be considered as new (appeared in 2.9 or
> so),
> it is surely not a bug. But I don't understand the rationale behind
> this.
> Could someone explain it to me ? Why this order has it be choosen ?
> And how do we should handle the apply message ?
>
> Thanks in advance.
> Regards
> Pierre

I have just filled up a report in bugzilla, and joined a patch.
See http://bugzilla.gnome.org/show_bug.cgi?id=589745

Regards
Pierre