Re: Atk focus change capture fail. Why?

That code (although I didn't test it), seems fine, and should work if
you are using a recent gtk version. If not, that will only work if
accessibility is enabled.

Anyway, FWIW, we plan to deprecate those methods at some moment of the
future:
https://bugzilla.gnome.org/show_bug.cgi?id=649575#c4

If you want to track when the focus change, you can also add a global
event, and filter state-change:focus events.

BR

On 10/04/2012 12:42 AM, Tal Hadad wrote:
> I tried to make my first steps in ATK, but I can't understand what I'm
> doing wrong.
> Here is my Vala code:
> using GLib;
> using Atk;
> using Gtk;
>
> void _my_focus_tracker (Atk.Object object) {
>     stdout.printf ("Tracked!\n");
> }
>
> int main (string[] args) {
>     Gtk.init (ref args);
>     Util.add_focus_tracker (_my_focus_tracker);
>    
>     Gtk.Window window1 = new Gtk.Window ();   
>     window1.show ();
>    
>     Gtk.Window window2 = new Gtk.Window ();   
>     window2.show ();
>    
>     Gtk.main ();
>    
>     return 0;
> }
>
> add_docus_tracker doesn't call _my_focus_tracker when focus get changed.
> I know that most of you may not know Vala, so here is part of
> the C generated/equated code:
> void _my_focus_tracker (AtkObject* object) {
>     FILE* _tmp0_;
>     g_return_if_fail (object != NULL);
>     _tmp0_ = stdout;
>     fprintf (_tmp0_, "Tracked!\n");
> }
>
> gint _vala_main (gchar** args, int args_length1) {
>     gint result = 0;
>     GtkWindow* _tmp0_;
>     GtkWindow* _tmp1_;
>     GtkWindow* window1;
>     GtkWindow* _tmp2_;
>     GtkWindow* _tmp3_;
>     GtkWindow* window2;
>     gtk_init (&args_length1, &args);
>     atk_add_focus_tracker (_my_focus_tracker_atk_event_listener);
>     _tmp0_ = (GtkWindow*) gtk_window_new (GTK_WINDOW_TOPLEVEL);
>     _tmp1_ = g_object_ref_sink (_tmp0_);
>     window1 = _tmp1_;
>     gtk_widget_show ((GtkWidget*) window1);
>     _tmp2_ = (GtkWindow*) gtk_window_new (GTK_WINDOW_TOPLEVEL);
>     _tmp3_ = g_object_ref_sink (_tmp2_);
>     window2 = _tmp3_;
>     gtk_widget_show ((GtkWidget*) window2);
>     gtk_main ();
>     result = 0;
>     _g_object_unref0 (window2);
>     _g_object_unref0 (window1);
>     return result;
> }
>
> int main (int argc, char ** argv) {
>     g_type_init ();
>     return _vala_main (argv, argc);
> }
>
> For some reason, even when GLib main loop is running, no focus change
> detection between the two windows.
> Have I miss something? I think I haven't initialize something or
> forgot to active watcher...
>
> Hope for your reply
> Tal
>
>
> _______________________________________________
> gnome-accessibility-list mailing list
> [email protected]
> https://mail.gnome.org/mailman/listinfo/gnome-accessibility-list


-- 
Alejandro Piñeiro Iglesias

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