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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* caja-undo.h - public interface for objects that implement
* undoable actions -- works across components
*
* Copyright (C) 2000 Eazel, 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* Author: Darin Adler <darin@bentspoon.com>
*/
#ifndef CAJA_UNDO_H
#define CAJA_UNDO_H
#include <glib-object.h>
typedef struct _CajaUndoTransaction CajaUndoTransaction;
/* The basic undoable operation. */
typedef void (* CajaUndoCallback) (GObject *target, gpointer callback_data);
/* Recipe for undo of a bit of work on an object.
* Create these atoms when you want to register more
* than one as a single undoable operation.
*/
typedef struct
{
GObject *target;
CajaUndoCallback callback;
gpointer callback_data;
GDestroyNotify callback_data_destroy_notify;
} CajaUndoAtom;
/* Registering something that can be undone. */
void caja_undo_register (GObject *target,
CajaUndoCallback callback,
gpointer callback_data,
GDestroyNotify callback_data_destroy_notify,
const char *operation_name,
const char *undo_menu_item_label,
const char *undo_menu_item_hint,
const char *redo_menu_item_label,
const char *redo_menu_item_hint);
void caja_undo_register_full (GList *atoms,
GObject *undo_manager_search_start_object,
const char *operation_name,
const char *undo_menu_item_label,
const char *undo_menu_item_hint,
const char *redo_menu_item_label,
const char *redo_menu_item_hint);
void caja_undo_unregister (GObject *target);
/* Performing an undo explicitly. Only for use by objects "out in the field".
* The menu bar itself uses a richer API in the undo manager.
*/
void caja_undo (GObject *undo_manager_search_start_object);
/* Connecting an undo manager. */
void caja_undo_share_undo_manager (GObject *destination_object,
GObject *source_object);
#endif /* CAJA_UNDO_H */
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