[Spice-devel] [spice-gtk v2] widget: Disable IME context on display widget

[Christophe Fergeau]

On Thu, Jun 16, 2016 at 03:05:35PM +0100, Frediano Ziglio wrote:
> This prevent Windows to handle IME on the widget which cause the
> application to not receive keyboard events.
> 
> To test this issue set keyboard layour to Japanese and Microsoft

'layout'

Acked-by: Christophe Fergeau <cfergeau at redhat.com>

> IME (the default one). Set the input method to full katakana, assure
> your remote-viewer is using this method and start pressing
> alphabetical keys. On the guest (open a terminal, an editor or
> a word processor to make easier) you won't see any character.
> 
> Signed-off-by: Frediano Ziglio <fziglio at redhat.com>
> ---
>  src/spice-widget.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> Changes from v1:
> - explain the problem in the commit message.
> 
> diff --git a/src/spice-widget.c b/src/spice-widget.c
> index c528614..595c8f5 100644
> --- a/src/spice-widget.c
> +++ b/src/spice-widget.c
> @@ -1687,6 +1687,15 @@ static gboolean focus_in_event(GtkWidget *widget, GdkEventFocus *focus G_GNUC_UN
>          return true;
>  
>      release_keys(display);
> +#ifdef G_OS_WIN32
> +    /* Reset the IME context of the focused window.
> +     * Note that the focused window can be different from SpiceDisplay
> +     * one but the events are received and forwarder by this window. */
> +    HWND hwnd_focused = GetFocus();
> +    if (hwnd_focused != NULL) {
> +        ImmAssociateContext(hwnd_focused, NULL);
> +    }
> +#endif
>      if (!d->disable_inputs)
>          spice_gtk_session_sync_keyboard_modifiers(d->gtk_session);
>      if (d->keyboard_grab_released)
> -- 
> 2.7.4
> 
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