/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-storage.h
 *
 * Copyright (C) 2000  Helix Code, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Author: Ettore Perazzoli
 */

#ifndef _E_STORAGE_H_
#define _E_STORAGE_H_

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <gtk/gtkobject.h>

#ifdef __cplusplus
extern "C" {
#pragma }
#endif /* __cplusplus */

#define E_TYPE_STORAGE          (e_storage_get_type ())
#define E_STORAGE(obj)          (GTK_CHECK_CAST ((obj), E_TYPE_STORAGE, EStorage))
#define E_STORAGE_CLASS(klass)      (GTK_CHECK_CLASS_CAST ((klass), E_TYPE_STORAGE, EStorageClass))
#define E_IS_STORAGE(obj)       (GTK_CHECK_TYPE ((obj), E_TYPE_STORAGE))
#define E_IS_STORAGE_CLASS(klass)   (GTK_CHECK_CLASS_TYPE ((obj), E_TYPE_STORAGE))


typedef struct _EStorage        EStorage;
typedef struct _EStoragePrivate EStoragePrivate;
typedef struct _EStorageClass   EStorageClass;

enum _EStorageResult {
    E_STORAGE_OK,
    E_STORAGE_GENERICERROR,
    E_STORAGE_EXISTS,
    E_STORAGE_INVALIDTYPE,
    E_STORAGE_IOERROR,
    E_STORAGE_NOSPACE,
    E_STORAGE_NOTFOUND,
    E_STORAGE_NOTIMPLEMENTED,
    E_STORAGE_PERMISSIONDENIED,
    E_STORAGE_UNSUPPORTEDOPERATION,
    E_STORAGE_UNSUPPORTEDTYPE
};
typedef enum _EStorageResult EStorageResult;

typedef void (* EStorageResultCallback) (EStorage *storage, EStorageResult result, void *data);

#include "e-folder.h"

struct _EStorage {
    GtkObject parent;

    EStoragePrivate *priv;
};

struct _EStorageClass {
    GtkObjectClass parent_class;

    /* Signals.  */

    void * (* new_folder)     (EStorage *storage, const char *path);
    void * (* removed_folder) (EStorage *storage, const char *path);

    /* Virtual methods.  */

    GList      * (* list_folders)        (EStorage *storage, const char *path);
    EFolder    * (* get_folder)          (EStorage *storage, const char *path);
    const char * (* get_name)            (EStorage *storage);

    void         (* async_create_folder) (EStorage *storage, const char *path,
                          const char *type, const char *description,
                          EStorageResultCallback callback, void *data);
    void         (* async_remove_folder) (EStorage *storage, const char *path,
                          EStorageResultCallback callback, void *data);
};


GtkType     e_storage_get_type          (void);
void        e_storage_construct         (EStorage   *storage);
EStorage   *e_storage_new               (void);
gboolean    e_storage_path_is_relative  (const char *path);
gboolean    e_storage_path_is_absolute  (const char *path);

GList      *e_storage_list_folders      (EStorage   *storage, const char *path);
EFolder    *e_storage_get_folder        (EStorage   *storage, const char *path);

const char *e_storage_get_name          (EStorage   *storage);

/* Folder operations.  */

void        e_storage_async_create_folder  (EStorage               *storage,
                        const char             *path,
                        const char             *type,
                        const char             *description,
                        EStorageResultCallback  callback,
                        void                   *data);
void        e_storage_async_remove_folder  (EStorage               *storage,
                        const char             *path,
                        EStorageResultCallback  callback,
                        void                   *data);

const char *e_storage_result_to_string     (EStorageResult          result);

/* Protected.  C++ anyone?  */
gboolean  e_storage_new_folder      (EStorage *storage, const char *path, EFolder *folder);
gboolean  e_storage_removed_folder  (EStorage *storage, const char *path);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* _E_STORAGE_H_ */