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1 /*
2 * nautilus-column-provider.c - Interface for Nautilus extensions
3 * that provide column specifications.
4 *
5 * Copyright (C) 2003 Novell, Inc.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the Free
19 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 *
21 * Author: Dave Camp <dave@ximian.com>
22 *
23 */
24
25 #include <config.h>
26 #include "nautilus-column-provider.h"
27
28 #include <glib-object.h>
29
30 static void
31 nautilus_column_provider_base_init (gpointer g_class)
32 {
33 }
34
35 GType
36 nautilus_column_provider_get_type (void)
37 {
38 static GType type = 0;
39
40 if (!type) {
41 const GTypeInfo info = {
42 sizeof (NautilusColumnProviderIface),
43 nautilus_column_provider_base_init,
44 NULL,
45 NULL,
46 NULL,
47 NULL,
48 0,
49 0,
50 NULL
51 };
52
53 type = g_type_register_static (G_TYPE_INTERFACE,
54 "NautilusColumnProvider",
55 &info, 0);
56 g_type_interface_add_prerequisite (type, G_TYPE_OBJECT);
57 }
58
59 return type;
60 }
61
62 /**
63 * nautilus_column_provider_get_columns:
64 * @provider: a #NautilusColumnProvider
65 *
66 * Returns: (element-type NautilusColumn) (transfer full): the provided #NautilusColumn objects
67 */
68 GList *
69 nautilus_column_provider_get_columns (NautilusColumnProvider *provider)
70 {
71 g_return_val_if_fail (NAUTILUS_IS_COLUMN_PROVIDER (provider), NULL);
72 g_return_val_if_fail (NAUTILUS_COLUMN_PROVIDER_GET_IFACE (provider)->get_columns != NULL, NULL);
73
74 return NAUTILUS_COLUMN_PROVIDER_GET_IFACE (provider)->get_columns
75 (provider);
76 }
77
78