Merged from nautilus-extensions-branch.

2004-01-11  Dave Camp  <dave@ximian.com>

	* Merged from nautilus-extensions-branch.

1 files changed, 120 insertions, 0 deletions

diff --git a/libnautilus-extension/nautilus-info-provider.c b/libnautilus-extension/nautilus-info-provider.c
new file mode 100644
index 000000000..942245190
--- /dev/null
+++ b/libnautilus-extension/nautilus-info-provider.c
@@ -0,0 +1,120 @@
+/*
+ *  nautilus-info-provider.c - Interface for Nautilus extensions that 
+ *                             provide info about files.
+ *
+ *  Copyright (C) 2003 Novell, Inc.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library 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
+ *  Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public
+ *  License along with this library; if not, write to the Free
+ *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 
+ *  Author:  Dave Camp <dave@ximian.com>
+ *
+ */
+
+#include <config.h>
+#include "nautilus-info-provider.h"
+
+#include <glib-object.h>
+
+static void
+nautilus_info_provider_base_init (gpointer g_class)
+{
+}
+
+GType                   
+nautilus_info_provider_get_type (void)
+{
+	static GType type = 0;
+
+	if (!type) {
+		static const GTypeInfo info = {
+			sizeof (NautilusInfoProviderIface),
+			nautilus_info_provider_base_init,
+			NULL,
+			NULL,
+			NULL,
+			NULL,
+			0,
+			0,
+			NULL
+		};
+		
+		type = g_type_register_static (G_TYPE_INTERFACE, 
+					       "NautilusInfoProvider",
+					       &info, 0);
+		g_type_interface_add_prerequisite (type, G_TYPE_OBJECT);
+	}
+
+	return type;
+}
+
+NautilusOperationResult 
+nautilus_info_provider_update_file_info (NautilusInfoProvider *provider,
+					 NautilusFileInfo *file,
+					 GClosure *update_complete,
+					 NautilusOperationHandle **handle)
+{
+	g_return_val_if_fail (NAUTILUS_IS_INFO_PROVIDER (provider),
+			      NAUTILUS_OPERATION_FAILED);
+	g_return_val_if_fail (NAUTILUS_INFO_PROVIDER_GET_IFACE (provider)->update_file_info != NULL,
+			      NAUTILUS_OPERATION_FAILED);
+	g_return_val_if_fail (update_complete != NULL, 
+			      NAUTILUS_OPERATION_FAILED);
+	g_return_val_if_fail (handle != NULL, NAUTILUS_OPERATION_FAILED);
+
+	return NAUTILUS_INFO_PROVIDER_GET_IFACE (provider)->update_file_info 
+		(provider, file, update_complete, handle);
+}
+
+void
+nautilus_info_provider_cancel_update (NautilusInfoProvider *provider,
+				      NautilusOperationHandle *handle)
+{
+	g_return_if_fail (NAUTILUS_IS_INFO_PROVIDER (provider));
+	g_return_if_fail (NAUTILUS_INFO_PROVIDER_GET_IFACE (provider)->cancel_update != NULL);
+	g_return_if_fail (NAUTILUS_INFO_PROVIDER_GET_IFACE (provider)->cancel_update != NULL);
+	g_return_if_fail (handle != NULL);
+
+	NAUTILUS_INFO_PROVIDER_GET_IFACE (provider)->cancel_update (provider,
+								    handle);
+}
+
+void
+nautilus_info_provider_update_complete_invoke (GClosure *update_complete,
+					       NautilusInfoProvider *provider,
+					       NautilusOperationHandle *handle,
+					       NautilusOperationResult result)
+{
+	GValue args[3] = { { 0, } };
+	GValue return_val = { 0, };
+	
+	g_return_if_fail (update_complete != NULL);
+	g_return_if_fail (NAUTILUS_IS_INFO_PROVIDER (provider));
+
+	g_value_init (&args[0], NAUTILUS_TYPE_INFO_PROVIDER);
+	g_value_init (&args[1], G_TYPE_POINTER);
+	g_value_init (&args[2], NAUTILUS_TYPE_OPERATION_RESULT);
+
+	g_value_set_object (&args[0], provider);
+	g_value_set_pointer (&args[1], handle);
+	g_value_set_enum (&args[2], result);
+
+	g_closure_invoke (update_complete, &return_val, 3, args, NULL);
+
+	g_value_unset (&args[0]);
+	g_value_unset (&args[1]);
+	g_value_unset (&args[2]);
+}
+
+