[banshee/gtk3] Port the custom gtkrc handling to the new CSS-based theming

[Bertrand Lorentz <blorentz src gnome org>]

commit 39499be5a0d616b62265da088c3d0afdeed3f282
Author: Bertrand Lorentz <bertrand lorentz gmail com>
Date:   Sun Jul 31 13:15:23 2011 +0200

    Port the custom gtkrc handling to the new CSS-based theming
    
    The customization is now done by putting CSS statements in a gtk.css
    file. This file must be loaded after GTK is initialized, because we need
    the default GDK screen.
    
    Rename the two related command-line option to no-gtkcss and
    debug-gtkcss, and add a description for debug-gtkcss.

 src/Clients/Booter/Booter/Entry.cs                 |   11 ++++--
 .../Banshee.Gui/GtkBaseClient.cs                   |   32 ++++++++++++--------
 2 files changed, 26 insertions(+), 17 deletions(-)
---
diff --git a/src/Clients/Booter/Booter/Entry.cs b/src/Clients/Booter/Booter/Entry.cs
index 26b3385..ee7d24c 100644
--- a/src/Clients/Booter/Booter/Entry.cs
+++ b/src/Clients/Booter/Booter/Entry.cs
@@ -148,6 +148,9 @@ namespace Booter
             Console.WriteLine ("Usage: {0} [options...] [files|URIs...]", "banshee");
             Console.WriteLine ();
 
+            string css_file = Path.Combine (Paths.ApplicationData, "gtk.css").Replace (
+                            Environment.GetFolderPath (Environment.SpecialFolder.Personal), "~");
+
             Layout commands = new Layout (
                 new LayoutGroup ("help", Catalog.GetString ("Help Options"),
                     new LayoutOption ("help", Catalog.GetString ("Show this help")),
@@ -220,10 +223,10 @@ namespace Booter
                     new LayoutOption ("uninstalled", Catalog.GetString ("Optimize instance for running uninstalled; " +
                         "most notably, this will create an alternate Mono.Addins database in the working directory")),
                     new LayoutOption ("disable-dbus", Catalog.GetString ("Disable DBus support completely")),
-                    new LayoutOption ("no-gtkrc", String.Format (Catalog.GetString (
-                        "Skip loading a custom gtkrc file ({0}) if it exists"),
-                        Path.Combine (Paths.ApplicationData, "gtkrc").Replace (
-                            Environment.GetFolderPath (Environment.SpecialFolder.Personal), "~")))
+                    new LayoutOption ("no-gtkcss", String.Format (Catalog.GetString (
+                        "Skip loading a custom gtk.css file ({0}) if it exists"), css_file)),
+                    new LayoutOption ("debug-gtkcss", String.Format (Catalog.GetString (
+                        "Reload the custom gtk.css file ({0}) every 5 seconds"), css_file))
                 )
             );
 
diff --git a/src/Core/Banshee.ThickClient/Banshee.Gui/GtkBaseClient.cs b/src/Core/Banshee.ThickClient/Banshee.Gui/GtkBaseClient.cs
index 7d2c2aa..133619a 100644
--- a/src/Core/Banshee.ThickClient/Banshee.Gui/GtkBaseClient.cs
+++ b/src/Core/Banshee.ThickClient/Banshee.Gui/GtkBaseClient.cs
@@ -45,24 +45,20 @@ namespace Banshee.Gui
     {
         static GtkBaseClient () {
             Application.InitializePaths ();
-            user_gtkrc = Path.Combine (Paths.ApplicationData, "gtkrc");
+            user_css = Path.Combine (Paths.ApplicationData, "gtk.css");
         }
 
         private static Type client_type;
 
-        private static string user_gtkrc;
+        private static string user_css;
+
+        private Gtk.CssProvider custom_provider;
 
         public static void Startup<T> (string [] args) where T : GtkBaseClient
         {
             Hyena.Log.InformationFormat ("Running Banshee {0}: [{1}]", Application.Version,
                 Application.BuildDisplayInfo);
 
-            // This could go into GtkBaseClient, but it's probably something we
-            // should really only support at each client level
-            if (File.Exists (user_gtkrc) && !ApplicationContext.CommandLine.Contains ("no-gtkrc")) {
-                Gtk.Rc.AddDefaultFile (user_gtkrc);
-            }
-
             // Boot the client
             Banshee.Gui.GtkBaseClient.Startup<T> ();
         }
@@ -109,12 +105,22 @@ namespace Banshee.Gui
             }
             Gtk.Application.Init ();
 
-            if (ApplicationContext.CommandLine.Contains ("debug-gtkrc")) {
-                Log.Information ("Note: gtkrc files will be checked for reload every 5 seconds!");
+            // This could go into GtkBaseClient, but it's probably something we
+            // should really only support at each client level
+            if (File.Exists (user_css) && !ApplicationContext.CommandLine.Contains ("no-gtkcss")) {
+                custom_provider = new Gtk.CssProvider ();
+                custom_provider.LoadFromPath (user_css);
+                Gtk.StyleContext.AddProviderForScreen (Gdk.Screen.Default, (Gtk.StyleProvider)custom_provider,
+                                                       600 /* GTK_STYLE_PROVIDER_PRIORITY_APPLICATION*/ );
+            }
+
+            if (ApplicationContext.CommandLine.Contains ("debug-gtkcss")) {
+                Log.Information ("Note: gtk.css file will be checked for reload every 5 seconds!");
                 GLib.Timeout.Add (5000, delegate {
-                    if (Gtk.Rc.ReparseAll ()) {
-                        Gtk.Rc.ResetStyles (Gtk.Settings.Default);
-                        Log.Information ("gtkrc has been reloaded");
+                    if (custom_provider != null) {
+                        custom_provider.LoadFromPath (user_css);
+                        Gtk.StyleContext.ResetWidgets (Gdk.Screen.Default);
+                        Log.Information ("gtk.css has been reloaded");
                     }
                     return true;
                 });