Re: Get GtkWindow focus from XI Event

[Takao Fujiwara <tfujiwar redhat com>]

Thank you very much.
Your reply fixes my problem.
I thought your suggestion to use gdk_x11_display_get_user_time() + a time lag previously instead of the event 
time by mistake.

Fujiwara

On 05/12/17 00:35, Rui Tiago Cação Matos-san wrote:
> Hi,
>
> On Thu, May 11, 2017 at 2:24 PM, Takao Fujiwara <tfujiwar redhat com> wrote:
> > I have a focus problem with the attached program.
> > 1. When press Ctrl-Alt-v, my window is launched with the keyboard focus.
> > 2. Click [x] button and close the window.
> > 3. When press Ctrl-Alt-v again, my window is launched but the focus status
> > is different by desktop.
> >
> > XFCE4 desktop can get the keyboard focus correctly.
> > But GNOME, MATE or Plasma desktop cannot get the keyboard focus in the
> > second Ctrl-Alt-v.
>
> Basically you're hitting the window manager's focus stealing
> prevention logic. See below how you can fix it:
>
> > static void
> > run_window ()
> > {
> >     GtkWidget *window;
> >     GMainLoop *loop;
> >
> >     loop = g_main_loop_new (NULL, FALSE);
> >     window = my_window_new (loop);
> >     gtk_widget_show_all(window);
>
> call gtk_window_present_with_time() here
>
> >     g_main_loop_run (loop);
> > }
> >
> > static void
> > event_handler (GdkEvent *event,
> >                gpointer  data)
> > {
> >     static int times = 0;
> >     if (((GdkEventAny*)event)->window == gdk_get_default_root_window() &&
> >          event->type == GDK_KEY_PRESS) {
> >         guint keyval = ((GdkEventKey*)event)->keyval;
> >         guint modifiers = ((GdkEventKey*)event)->state;
> >         if (keyval >= GDK_KEY_A && keyval <= GDK_KEY_Z &&
> >             (modifiers & GDK_SHIFT_MASK) != 0) {
> >             keyval = keyval - GDK_KEY_A + GDK_KEY_a;
> >         }
> >         if (keyval == shortcut_keysym &&
> >             modifiers == shortcut_modifiers) {
>
> get the event timestamp here with gdk_event_get_time()
>
> >             run_window ();
> >             times++;
> >             if (times > 1) {
> >                 ungrab_keycode (keyval, modifiers);
> >                 gtk_main_quit();
> >             }
> >         }
> >     }
> >     gtk_main_do_event (event);
> > }
>
>
> Rui