Re: [Qemu-devel] [PATCH RESEND] ui/gtk: Restore keyboard focus after Page change

[Stefan Hajnoczi]

On Tue, Jul 08, 2014 at 02:28:57PM -0400, John Snow wrote:
> (Resending for correct email addresses via MAINTAINERS ...)
> 
> In the GTK UI, after changing focus to the qemu monitor Notebook Page,
> when restoring focus to the virtual machine page, the keyboard focus is lost
> to a hidden GTK widget. Focus can only be restored to the virtual machine by
> pressing "tab" or any of the four directional arrow keys.
> 
> Clicking in the window or grabbing/ungrabbing input does not restore keyboard
> focus to the child widget.
> 
> This patch adjusts the Notebook page switching callback to automatically
> steal keyboard focus on the Page switch event, so that keyboard input
> does not appear to break or disappear after tabbing to the QEMU monitor.
> 
> Signed-off-by: John Snow <address@hidden>
> ---
>  ui/gtk.c | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/ui/gtk.c b/ui/gtk.c
> index b02fcd6..2345d7e 100644
> --- a/ui/gtk.c
> +++ b/ui/gtk.c
> @@ -992,13 +992,16 @@ static void gd_menu_switch_vc(GtkMenuItem *item, void 
> *opaque)
>  {
>      GtkDisplayState *s = opaque;
>      VirtualConsole *vc = gd_vc_find_by_menu(s);
> +    GtkNotebook *nb = GTK_NOTEBOOK(s->notebook);
> +    GtkWidget *child;
>      gint page;
>  
>      gtk_release_modifiers(s);
>      if (vc) {
> -        page = gtk_notebook_page_num(GTK_NOTEBOOK(s->notebook),
> -                                     vc->tab_item);
> -        gtk_notebook_set_current_page(GTK_NOTEBOOK(s->notebook), page);
> +        page = gtk_notebook_page_num(nb, vc->tab_item);
> +        gtk_notebook_set_current_page(nb, page);
> +        child = gtk_notebook_get_nth_page(nb, page);
> +        gtk_widget_grab_focus(child);
>      }
>  }
>  
> -- 
> 1.9.3

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