path: root/calendar/pcs/cal-backend.h

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* Evolution calendar - generic backend class
 *
 * Copyright (C) 2000 Helix Code, Inc.
 *
 * Author: Federico Mena-Quintero <federico@helixcode.com>
 *
 * 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.
 */

#ifndef CAL_BACKEND_H
#define CAL_BACKEND_H

#include <libgnome/gnome-defs.h>
#include <libgnomevfs/gnome-vfs.h>
#include <cal-util/cal-util.h>
#include <cal-util/cal-component.h>
#include "calendar/pcs/evolution-calendar.h"
#include "cal-common.h"
#include "cal.h"

BEGIN_GNOME_DECLS



#define CAL_BACKEND_TYPE            (cal_backend_get_type ())
#define CAL_BACKEND(obj)            (GTK_CHECK_CAST ((obj), CAL_BACKEND_TYPE, CalBackend))
#define CAL_BACKEND_CLASS(klass)    (GTK_CHECK_CLASS_CAST ((klass), CAL_BACKEND_TYPE,       \
                     CalBackendClass))
#define IS_CAL_BACKEND(obj)         (GTK_CHECK_TYPE ((obj), CAL_BACKEND_TYPE))
#define IS_CAL_BACKEND_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), CAL_BACKEND_TYPE))

/* Load status values */
typedef enum {
    CAL_BACKEND_LOAD_SUCCESS,   /* Loading OK */
    CAL_BACKEND_LOAD_ERROR      /* We need better error reporting in libversit */
} CalBackendLoadStatus;

struct _CalBackend {
    GtkObject object;

    GnomeVFSURI *uri;
    GSList *entries;
    guint timer;
};

struct _CalBackendClass {
    GtkObjectClass parent_class;

    /* Notification signals */
    void (* last_client_gone) (CalBackend *backend);

    /* Virtual methods */
    GnomeVFSURI *(* get_uri) (CalBackend *backend);
    void (* add_cal) (CalBackend *backend, Cal *cal);
    CalBackendLoadStatus (* load) (CalBackend *backend, GnomeVFSURI *uri);
    void (* create) (CalBackend *backend, GnomeVFSURI *uri);

    int (* get_n_objects) (CalBackend *backend, CalObjType type);
    char *(* get_object) (CalBackend *backend, const char *uid);
    CalObjType(* get_type_by_uid) (CalBackend *backend, const char *uid);
    GList *(* get_uids) (CalBackend *backend, CalObjType type);
    GList *(* get_objects_in_range) (CalBackend *backend, CalObjType type,
                     time_t start, time_t end);
    GList *(* get_alarms_in_range) (CalBackend *backend, time_t start, time_t end);
    gboolean (* get_alarms_for_object) (CalBackend *backend, const char *uid,
                        time_t start, time_t end,
                        GList **alarms);
    gboolean (* update_object) (CalBackend *backend, const char *uid, const char *calobj);
    gboolean (* remove_object) (CalBackend *backend, const char *uid);
};

GtkType cal_backend_get_type (void);

GnomeVFSURI *cal_backend_get_uri (CalBackend *backend);

void cal_backend_add_cal (CalBackend *backend, Cal *cal);

CalBackendLoadStatus cal_backend_load (CalBackend *backend, GnomeVFSURI *uri);

void cal_backend_create (CalBackend *backend, GnomeVFSURI *uri);

int cal_backend_get_n_objects (CalBackend *backend, CalObjType type);

char *cal_backend_get_object (CalBackend *backend, const char *uid);

GList *cal_backend_get_uids (CalBackend *backend, CalObjType type);

GList *cal_backend_get_changed_uids (CalBackend *backend, CalObjType type, time_t since);

GList *cal_backend_get_objects_in_range (CalBackend *backend, CalObjType type,
                     time_t start, time_t end);

GList *cal_backend_get_alarms_in_range (CalBackend *backend, time_t start, time_t end);

gboolean cal_backend_get_alarms_for_object (CalBackend *backend, const char *uid,
                        time_t start, time_t end,
                        GList **alarms);


gboolean cal_backend_update_object (CalBackend *backend, const char *uid, const char *calobj);

gboolean cal_backend_remove_object (CalBackend *backend, const char *uid);

void cal_backend_last_client_gone (CalBackend *backend);



END_GNOME_DECLS

#endif