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/*
 * Copyright (C) 2013 Stefano Karapetsas
 *
 * 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., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 *
 * Authors:
 *  Stefano Karapetsas <stefano@karapetsas.com>
 */

#ifndef __GSM_SYSTEMD_H__
#define __GSM_SYSTEMD_H__

#include <unistd.h>
#include <glib.h>
#include <glib-object.h>

#ifdef __cplusplus
extern "C" {
#endif

#define GSM_TYPE_SYSTEMD             (gsm_systemd_get_type ())
#define GSM_SYSTEMD(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), GSM_TYPE_SYSTEMD, GsmSystemd))
#define GSM_SYSTEMD_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), GSM_TYPE_SYSTEMD, GsmSystemdClass))
#define GSM_IS_SYSTEMD(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GSM_TYPE_SYSTEMD))
#define GSM_IS_SYSTEMD_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), GSM_TYPE_SYSTEMD))
#define GSM_SYSTEMD_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS((obj), GSM_TYPE_SYSTEMD, GsmSystemdClass))
#define GSM_SYSTEMD_ERROR            (gsm_systemd_error_quark ())

#define LOGIND_RUNNING() (access("/run/systemd/seats/", F_OK) >= 0)

typedef struct _GsmSystemd        GsmSystemd;
typedef struct _GsmSystemdClass   GsmSystemdClass;
typedef struct _GsmSystemdPrivate GsmSystemdPrivate;
typedef enum   _GsmSystemdError   GsmSystemdError;

struct _GsmSystemd
{
        GObject               parent;

        GsmSystemdPrivate *priv;
};

struct _GsmSystemdClass
{
        GObjectClass parent_class;

        void (* request_completed) (GsmSystemd *manager,
                                    GError        *error);

        void (* privileges_completed) (GsmSystemd *manager,
                                       gboolean       success,
                                       gboolean       ask_later,
                                       GError        *error);
};

enum _GsmSystemdError {
        GSM_SYSTEMD_ERROR_RESTARTING = 0,
        GSM_SYSTEMD_ERROR_STOPPING
};

#define GSM_SYSTEMD_SESSION_TYPE_LOGIN_WINDOW "greeter"

GType            gsm_systemd_get_type        (void);

GQuark           gsm_systemd_error_quark     (void);

GsmSystemd      *gsm_systemd_new             (void) G_GNUC_MALLOC;

gboolean         gsm_systemd_can_switch_user (GsmSystemd *manager);

gboolean         gsm_systemd_get_restart_privileges (GsmSystemd *manager);

gboolean         gsm_systemd_get_stop_privileges    (GsmSystemd *manager);

gboolean         gsm_systemd_can_stop        (GsmSystemd *manager);

gboolean         gsm_systemd_can_restart     (GsmSystemd *manager);

gboolean         gsm_systemd_can_hibernate     (GsmSystemd *manager);

gboolean         gsm_systemd_can_suspend     (GsmSystemd *manager);

void             gsm_systemd_attempt_stop    (GsmSystemd *manager);

void             gsm_systemd_attempt_restart (GsmSystemd *manager);

void             gsm_systemd_attempt_hibernate (GsmSystemd *manager);

void             gsm_systemd_attempt_suspend (GsmSystemd *manager);

void             gsm_systemd_set_session_idle (GsmSystemd *manager,
                                                  gboolean       is_idle);

gchar           *gsm_systemd_get_current_session_type (GsmSystemd *manager);

GsmSystemd      *gsm_get_systemd             (void);

#ifdef __cplusplus
}
#endif

#endif /* __GSM_SYSTEMD_H__ */