[gtk+] CJK Windows: Silence gtk_style_context_set_state() warnings

[Chun-wei Fan <fanchunwei src gnome org>]

commit d07f00d98f2ae82a927d364a8f140ec881c2dcfe
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Fri Jan 8 18:44:24 2016 +0800

    CJK Windows: Silence gtk_style_context_set_state() warnings
    
    We need to update calls to gtk_style_context_set_state() in
    gtkimcontextime.c, so that the state passed into that function would be in
    line with what GtkStyleContext expects, due to updates in the CSS
    machinery, as outlined in this link[1], which is based on information in
    in Matthias' blog[2].
    
    Doing so will silence the gtk_style_context_set_state() warnings, which is
    emitted when a widget uses gtkimcontext on Windows with CJK IME, which will
    in turn call gtkimcontextime.
    
    [1]: http://feaneron.com/2016/01/04/quick-guide-to-port-an-app-for-gtk-3-20/
    [2]: https://blogs.gnome.org/mclasen/2015/11/20/a-gtk-update/
    
    https://bugzilla.gnome.org/show_bug.cgi?id=760314

 modules/input/gtkimcontextime.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)
---
diff --git a/modules/input/gtkimcontextime.c b/modules/input/gtkimcontextime.c
index 5d2c15a..d76f180 100644
--- a/modules/input/gtkimcontextime.c
+++ b/modules/input/gtkimcontextime.c
@@ -941,7 +941,14 @@ gtk_im_context_ime_set_preedit_font (GtkIMContext *context)
     }
 
   style = gtk_widget_get_style_context (widget);
-  gtk_style_context_get (style, GTK_STATE_FLAG_NORMAL, "font", &font_desc, NULL);
+  gtk_style_context_save (style);
+  gtk_style_context_set_state (style, GTK_STATE_FLAG_NORMAL);
+  gtk_style_context_get (style,
+                         gtk_style_context_get_state (style),
+                         "font",
+                         &font_desc,
+                         NULL);
+  gtk_style_context_restore (style);
   
   if (lang[0])
     {