[seed] Support static methods on interfaces

[Alan Knowles <alank src gnome org>]

commit c8f3c1cabcea5976ca6c46804281725b207390a3
Author: Alban Crequy <alban crequy collabora co uk>
Date:   Fri Apr 5 17:49:28 2013 +0100

    Support static methods on interfaces
    
    Static methods on a GObject can be called on Namespace.Type.Function() but
    static methods on an interface cannot be called on
    Namespace.Interface.Function().
    
    https://bugzilla.gnome.org/show_bug.cgi?id=697377

 libseed/seed-importer.c |   54 +++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 54 insertions(+), 0 deletions(-)
---
diff --git a/libseed/seed-importer.c b/libseed/seed-importer.c
index de331ff..37959d4 100644
--- a/libseed/seed-importer.c
+++ b/libseed/seed-importer.c
@@ -230,6 +230,53 @@ seed_gi_importer_handle_object (JSContextRef ctx,
     }
 }
 
+static void
+seed_gi_importer_handle_iface (JSContextRef ctx,
+                              JSObjectRef namespace_ref,
+                              GIObjectInfo * info, JSValueRef * exception)
+{
+  GType type;
+
+  type = g_registered_type_info_get_g_type ((GIRegisteredTypeInfo *) info);
+
+  if (type != 0)
+    {
+      GIFunctionInfo *finfo;
+      GIFunctionInfoFlags flags;
+      JSObjectRef constructor_ref;
+      guint i, n_methods;
+
+      constructor_ref =
+       JSObjectMake (ctx, gobject_constructor_class, (gpointer) type);
+
+      seed_object_set_property (ctx, constructor_ref,
+                               "type",
+                               seed_value_from_long (ctx, type, exception));
+      n_methods = g_interface_info_get_n_methods (info);
+      for (i = 0; i < n_methods; i++)
+       {
+         finfo = g_interface_info_get_method (info, i);
+         flags = g_function_info_get_flags (finfo);
+         if (!(flags & GI_FUNCTION_IS_METHOD))
+           {
+             seed_gobject_define_property_from_function_info
+               (ctx, finfo, constructor_ref, FALSE);
+           }
+         else
+           {
+             g_base_info_unref ((GIBaseInfo *) finfo);
+           }
+       }
+
+      seed_object_set_property (ctx, namespace_ref,
+                               g_base_info_get_name ((GIBaseInfo *) info),
+                               constructor_ref);
+      seed_object_set_property (ctx, constructor_ref,
+                               "prototype",
+                               seed_gobject_get_prototype_for_gtype (type));
+    }
+}
+
 /*
  * Set up prototype and constructor for structs. Same semantics as objects except
  * for the type.
@@ -438,6 +485,10 @@ seed_gi_importer_do_namespace (JSContextRef ctx,
          seed_gi_importer_handle_object (ctx, namespace_ref,
                                          (GIObjectInfo *) info, exception);
          break;
+       case GI_INFO_TYPE_INTERFACE:
+         seed_gi_importer_handle_iface (ctx, namespace_ref,
+                                        (GIObjectInfo *) info, exception);
+         break;
        case GI_INFO_TYPE_STRUCT:
          seed_gi_importer_handle_struct (ctx, namespace_ref,
                                          (GIStructInfo *) info, exception);
@@ -457,6 +508,9 @@ seed_gi_importer_do_namespace (JSContextRef ctx,
                                            exception);
          break;
        default:
+         SEED_NOTE (IMPORTER, "Unhandled type %s for %s",
+                    g_info_type_to_string (info_type),
+                    g_base_info_get_name (info));
          break;
        }
       g_base_info_unref (info);