Appearance: don't set dark pref, dry loading provider

Author: danirabbit

src/Services/Appearance.vala

@@ -4,34 +4,26 @@
  */
 
 public class Monitor.Appearance : Object {
-    public static void set_prefered_style () {
-        var granite_settings = Granite.Settings.get_default ();
-        var gtk_settings = Gtk.Settings.get_default ();
+    private static Gtk.CssProvider provider;
 
-        bool is_dark = granite_settings.prefers_color_scheme == Granite.Settings.ColorScheme.DARK;
-        gtk_settings.gtk_application_prefer_dark_theme = is_dark;
+    public static void set_prefered_style () {
+        provider = new Gtk.CssProvider ();
+        Gtk.StyleContext.add_provider_for_display (Gdk.Display.get_default (), provider, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
 
+        var granite_settings = Granite.Settings.get_default ();
+        update_style_provider (granite_settings.prefers_color_scheme);
 
-        var provider = new Gtk.CssProvider ();
+        // We listen to changes in Granite.Settings and update our app if the user changes their preference
+        granite_settings.notify["prefers-color-scheme"].connect (() => {
+            update_style_provider (granite_settings.prefers_color_scheme);
+        });
+    }
 
-        if (is_dark) {
+    private static void update_style_provider (Granite.Settings.ColorScheme color_scheme) {
+        if (color_scheme == DARK) {
             provider.load_from_resource ("/io/elementary/monitor/monitor-dark.css");
         } else {
             provider.load_from_resource ("/io/elementary/monitor/monitor-light.css");
         }
-
-        Gtk.StyleContext.add_provider_for_display (Gdk.Display.get_default (), provider, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
-
-        // We listen to changes in Granite.Settings and update our app if the user changes their preference
-        granite_settings.notify["prefers-color-scheme"].connect (() => {
-            is_dark = granite_settings.prefers_color_scheme == Granite.Settings.ColorScheme.DARK;
-            gtk_settings.gtk_application_prefer_dark_theme = is_dark;
-
-            if (is_dark) {
-                provider.load_from_resource ("/io/elementary/monitor/monitor-dark.css");
-            } else {
-                provider.load_from_resource ("/io/elementary/monitor/monitor-light.css");
-            }
-        });
     }
 }