[yelp] settings: Fix GtkStyleContext warning spam

[David King <davidk src gnome org>]

commit 602e5e3ecb08d1b24ee20f177dd59cdba6238ebb
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Thu Feb 4 19:22:20 2016 -0600

    settings: Fix GtkStyleContext warning spam
    
    This is happening in basically every application, due to implementation
    changes in GtkStyleContext
    
    https://bugzilla.gnome.org/show_bug.cgi?id=761577

 libyelp/yelp-settings.c |   18 ++++++++++++++----
 1 files changed, 14 insertions(+), 4 deletions(-)
---
diff --git a/libyelp/yelp-settings.c b/libyelp/yelp-settings.c
index 4c2b1ff..74f1aee 100644
--- a/libyelp/yelp-settings.c
+++ b/libyelp/yelp-settings.c
@@ -1015,15 +1015,17 @@ gtk_theme_changed (GtkSettings  *gtk_settings,
     gtk_container_add (GTK_CONTAINER (tmpbox), tmpview);
     gtk_container_add (GTK_CONTAINER (tmpbox), tmplink);
     gtk_widget_show_all (tmpwin);
-    context = gtk_widget_get_style_context (tmpview);
-    /* I have to do this for some reason. Don't ask me why. Ain't in the docs. */
-    gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
 
-    linkcontext = gtk_widget_get_style_context (tmplink);
+    context = gtk_widget_get_style_context (tmpview);
+    gtk_style_context_save (context);
 
+    gtk_style_context_set_state (context, GTK_STATE_FLAG_NORMAL);
+    gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW);
     gtk_style_context_get_color (context, GTK_STATE_FLAG_NORMAL, &text);
     gtk_style_context_get_background_color (context, GTK_STATE_FLAG_NORMAL, &base);
 
+    gtk_style_context_restore (context);
+
     rgb_to_hsv (text, &text_h, &text_s, &text_v);
     rgb_to_hsv (base, &base_h, &base_s, &base_v);
 
@@ -1035,16 +1037,24 @@ gtk_theme_changed (GtkSettings  *gtk_settings,
     g_snprintf (settings->priv->colors[YELP_SETTINGS_COLOR_TEXT], 8, "#%02X%02X%02X",
                 (guint) (text.red * 255), (guint) (text.green * 255), (guint) (text.blue * 255));
 
+    linkcontext = gtk_widget_get_style_context (tmplink);
+    gtk_style_context_save (linkcontext);
+
     /* YELP_SETTINGS_COLOR_LINK */
+    gtk_style_context_set_state (linkcontext, GTK_STATE_FLAG_LINK);
     gtk_style_context_get_color (linkcontext, GTK_STATE_FLAG_LINK, &link);
     g_snprintf (settings->priv->colors[YELP_SETTINGS_COLOR_LINK], 8, "#%02X%02X%02X",
                 (guint) (link.red * 255), (guint) (link.green * 255), (guint) (link.blue * 255));
 
     /* YELP_SETTINGS_COLOR_LINK_VISITED */
+    gtk_style_context_set_state (linkcontext, GTK_STATE_FLAG_VISITED);
     gtk_style_context_get_color (linkcontext, GTK_STATE_FLAG_VISITED, &link);
     g_snprintf (settings->priv->colors[YELP_SETTINGS_COLOR_LINK_VISITED], 8, "#%02X%02X%02X",
                 (guint) (link.red * 255), (guint) (link.green * 255), (guint) (link.blue * 255));
 
+
+    gtk_style_context_restore (linkcontext);
+
     /* YELP_SETTINGS_COLOR_TEXT_LIGHT */
     hsv_to_hex (text_h, text_s, text_v - ((text_v - base_v) * 0.25),
                 settings->priv->colors[YELP_SETTINGS_COLOR_TEXT_LIGHT]);