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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
 *
 * Copyright (C) 2004-2006 William Jon McCann <mccann@jhu.edu>
 *
 * 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: William Jon McCann <mccann@jhu.edu>
 *
 */

#ifndef __GS_LISTENER_H
#define __GS_LISTENER_H

#include <glib.h>

G_BEGIN_DECLS

#define GS_TYPE_LISTENER         (gs_listener_get_type ())
#define GS_LISTENER(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), GS_TYPE_LISTENER, GSListener))
#define GS_LISTENER_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), GS_TYPE_LISTENER, GSListenerClass))
#define GS_IS_LISTENER(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), GS_TYPE_LISTENER))
#define GS_IS_LISTENER_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), GS_TYPE_LISTENER))
#define GS_LISTENER_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GS_TYPE_LISTENER, GSListenerClass))

typedef struct GSListenerPrivate GSListenerPrivate;

typedef struct
{
	GObject            parent;
	GSListenerPrivate *priv;
} GSListener;

typedef struct
{
	GObjectClass       parent_class;

	void            (* lock)                     (GSListener *listener);
	void            (* cycle)                    (GSListener *listener);
	void            (* quit)                     (GSListener *listener);
	void            (* simulate_user_activity)   (GSListener *listener);
	gboolean        (* active_changed)           (GSListener *listener,
	        gboolean    active);
	void            (* throttle_changed)         (GSListener *listener,
	        gboolean    throttled);
	void            (* show_message)             (GSListener *listener,
	        const char *summary,
	        const char *body,
	        const char *icon);
	void            (* prepare_for_sleep)         (GSListener *listener,
	        gboolean    prepare); /* prepare or resume from sleep */

} GSListenerClass;

typedef enum
{
    GS_LISTENER_ERROR_SERVICE_UNAVAILABLE,
    GS_LISTENER_ERROR_ACQUISITION_FAILURE,
    GS_LISTENER_ERROR_ACTIVATION_FAILURE
} GSListenerError;

#define GS_LISTENER_ERROR gs_listener_error_quark ()

GQuark      gs_listener_error_quark             (void);

GType       gs_listener_get_type                (void);

GSListener *gs_listener_new                     (void);
gboolean    gs_listener_acquire                 (GSListener *listener,
        GError    **error);
gboolean    gs_listener_set_active              (GSListener *listener,
        gboolean    active);
gboolean    gs_listener_set_session_idle        (GSListener *listener,
        gboolean    idle);
void        gs_listener_set_activation_enabled  (GSListener *listener,
        gboolean    enabled);
gboolean    gs_listener_get_activation_enabled  (GSListener *listener);
gboolean    gs_listener_is_inhibited            (GSListener *listener);

G_END_DECLS

#endif /* __GS_LISTENER_H */