1 files changed, 67 insertions, 0 deletions
diff --git a/e-util/e-extension.h b/e-util/e-extension.h
new file mode 100644
index 0000000000..905ef412f3
--- /dev/null
+++ b/e-util/e-extension.h
@@ -0,0 +1,67 @@
+/*
+ * e-extension.h
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+#ifndef E_EXTENSION_H
+#define E_EXTENSION_H
+
+#include <glib-object.h>
+#include <e-util/e-extensible.h>
+
+/* Standard GObject macros */
+#define E_TYPE_EXTENSION \
+	(e_extension_get_type ())
+#define E_EXTENSION(obj) \
+	(G_TYPE_CHECK_INSTANCE_CAST \
+	((obj), E_TYPE_EXTENSION, EExtension))
+#define E_EXTENSION_CLASS(cls) \
+	(G_TYPE_CHECK_CLASS_CAST \
+	((cls), E_TYPE_EXTENSION, EExtensionClass))
+#define E_IS_EXTENSION(obj) \
+	(G_TYPE_CHECK_INSTANCE_TYPE \
+	((obj), E_TYPE_EXTENSION))
+#define E_IS_EXTENSION_CLASS(cls) \
+	(G_TYPE_CHECK_CLASS_TYPE \
+	((cls), E_TYPE_EXTENSION))
+#define E_EXTENSION_GET_CLASS(obj) \
+	(G_TYPE_INSTANCE_GET_CLASS \
+	((obj), E_TYPE_EXTENSION, EExtensionClass))
+
+G_BEGIN_DECLS
+
+typedef struct _EExtension EExtension;
+typedef struct _EExtensionClass EExtensionClass;
+typedef struct _EExtensionPrivate EExtensionPrivate;
+
+struct _EExtension {
+	GObject parent;
+	EExtensionPrivate *priv;
+};
+
+struct _EExtensionClass {
+	GObjectClass parent_class;
+
+	/* The type to extend. */
+	GType extensible_type;
+};
+
+GType		e_extension_get_type		(void);
+EExtensible *	e_extension_get_extensible	(EExtension *extension);
+
+G_END_DECLS
+
+#endif /* E_EXTENSION_H */