path: root/libempathy/empathy-idle.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Copyright (C) 2007 Collabora Ltd.
 *
 * 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.
 * 
 * Authors: Xavier Claessens <xclaesse@gmail.com>
 */

#include <config.h>

#include <glib/gi18n.h>
#include <dbus/dbus-glib.h>

#include <libtelepathy/tp-helpers.h>

#include "empathy-idle.h"
#include "gossip-utils.h" 
#include "gossip-debug.h"

#define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
               EMPATHY_TYPE_IDLE, EmpathyIdlePriv))

#define DEBUG_DOMAIN "Idle"

/* Number of seconds before entering extended autoaway. */
#define EXT_AWAY_TIME (30*60)

enum {
    LAST_SIGNAL
};

struct _EmpathyIdlePriv {
    MissionControl *mc;
    DBusGProxy     *gs_proxy;
    gboolean        is_idle;
    McPresence      state;
    McPresence      slack_state;
    gchar          *status;
    McPresence      saved_state;
    gchar          *saved_status;
    guint           ext_away_timeout;
};

static void     empathy_idle_class_init      (EmpathyIdleClass *klass);
static void     empathy_idle_init            (EmpathyIdle      *idle);
static void     idle_finalize                (GObject          *object);
static void     idle_get_property            (GObject          *object,
                          guint             param_id,
                          GValue           *value,
                          GParamSpec       *pspec);
static void     idle_set_property            (GObject          *object,
                          guint             param_id,
                          const GValue     *value,
                          GParamSpec       *pspec);
static void     idle_presence_changed_cb     (MissionControl   *mc,
                          McPresence        state,
                          EmpathyIdle      *idle);
static void     idle_session_idle_changed_cb (DBusGProxy       *gs_proxy,
                          gboolean          is_idle,
                          EmpathyIdle      *idle);
static void     idle_ext_away_start          (EmpathyIdle      *idle);
static void     idle_ext_away_stop           (EmpathyIdle      *idle);
static gboolean idle_ext_away_cb             (EmpathyIdle      *idle);

enum {
    PROP_0,
    PROP_STATE,
    PROP_STATUS,
    PROP_SLACK_STATE
};

G_DEFINE_TYPE (EmpathyIdle, empathy_idle, G_TYPE_OBJECT)

static void
empathy_idle_class_init (EmpathyIdleClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);

    object_class->finalize = idle_finalize;
    object_class->get_property = idle_get_property;
    object_class->set_property = idle_set_property;

    g_object_class_install_property (object_class,
                     PROP_STATE,
                     g_param_spec_uint ("state",
                                "state",
                                "state",
                                MC_PRESENCE_UNSET,
                                LAST_MC_PRESENCE,
                                MC_PRESENCE_AVAILABLE,
                                G_PARAM_READWRITE));
    g_object_class_install_property (object_class,
                     PROP_STATUS,
                     g_param_spec_string ("status",
                                  "status",
                                  "status",
                                  NULL,
                                  G_PARAM_READWRITE));
    g_object_class_install_property (object_class,
                     PROP_SLACK_STATE,
                     g_param_spec_uint ("slack-state",
                                "slack-state",
                                "slack-state",
                                MC_PRESENCE_UNSET,
                                LAST_MC_PRESENCE,
                                MC_PRESENCE_UNSET,
                                G_PARAM_READWRITE));

    g_type_class_add_private (object_class, sizeof (EmpathyIdlePriv));
}

static void
empathy_idle_init (EmpathyIdle *idle)
{
    EmpathyIdlePriv *priv;

    priv = GET_PRIV (idle);

    priv->is_idle = FALSE;
    priv->mc = gossip_mission_control_new ();
    priv->state = mission_control_get_presence_actual (priv->mc, NULL);
    priv->status = mission_control_get_presence_message_actual (priv->mc, NULL);
    priv->gs_proxy = dbus_g_proxy_new_for_name (tp_get_bus (),
                            "org.gnome.ScreenSaver",
                            "/org/gnome/ScreenSaver",
                            "org.gnome.ScreenSaver");
    if (!priv->gs_proxy) {
        gossip_debug (DEBUG_DOMAIN, "Failed to get gs proxy");
        return;
    }

    dbus_g_proxy_add_signal (priv->gs_proxy, "SessionIdleChanged",
                 G_TYPE_BOOLEAN,
                 G_TYPE_INVALID);
    dbus_g_proxy_connect_signal (priv->gs_proxy, "SessionIdleChanged",
                     G_CALLBACK (idle_session_idle_changed_cb),
                     idle, NULL);
    dbus_g_proxy_connect_signal (DBUS_G_PROXY (priv->mc),
                     "PresenceStatusActual",
                     G_CALLBACK (idle_presence_changed_cb),
                     idle, NULL);
}

static void
idle_finalize (GObject *object)
{
    EmpathyIdlePriv *priv;

    priv = GET_PRIV (object);

    g_free (priv->status);
    g_free (priv->saved_status);
    g_object_unref (priv->mc);

    if (priv->gs_proxy) {
        g_object_unref (priv->gs_proxy);
    }

    idle_ext_away_stop (EMPATHY_IDLE (object));
}

static void
idle_get_property (GObject    *object,
           guint       param_id,
           GValue     *value,
           GParamSpec *pspec)
{
    EmpathyIdlePriv *priv;
    EmpathyIdle     *idle;

    priv = GET_PRIV (object);
    idle = EMPATHY_IDLE (object);

    switch (param_id) {
    case PROP_STATE:
        g_value_set_uint (value, empathy_idle_get_state (idle));
        break;
    case PROP_STATUS:
        g_value_set_string (value, empathy_idle_get_status (idle));
        break;
    case PROP_SLACK_STATE:
        g_value_set_uint (value, empathy_idle_get_slack_state (idle));
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
        break;
    };
}

static void
idle_set_property (GObject      *object,
           guint         param_id,
           const GValue *value,
           GParamSpec   *pspec)
{
    EmpathyIdlePriv *priv;
    EmpathyIdle     *idle;

    priv = GET_PRIV (object);
    idle = EMPATHY_IDLE (object);

    switch (param_id) {
    case PROP_STATE:
        empathy_idle_set_state (idle, g_value_get_uint (value));
        break;
    case PROP_STATUS:
        empathy_idle_set_status (idle, g_value_get_string (value));
        break;
    case PROP_SLACK_STATE:
        empathy_idle_set_slack_state (idle, g_value_get_uint (value));
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
        break;
    };
}

EmpathyIdle *
empathy_idle_new (void)
{
    static EmpathyIdle *idle = NULL;

    if (!idle) {
        idle = g_object_new (EMPATHY_TYPE_IDLE, NULL);
        g_object_add_weak_pointer (G_OBJECT (idle), (gpointer) &idle);
    } else {
        g_object_ref (idle);
    }

    return idle;
}

McPresence
empathy_idle_get_state (EmpathyIdle *idle)
{
    EmpathyIdlePriv *priv;

    priv = GET_PRIV (idle);

    return priv->state;
}

void
empathy_idle_set_state (EmpathyIdle *idle,
            McPresence   state)
{
    EmpathyIdlePriv *priv;

    priv = GET_PRIV (idle);

    mission_control_set_presence (priv->mc,
                      state,
                      priv->status,
                      NULL, NULL);
}

const gchar *
empathy_idle_get_status (EmpathyIdle *idle)
{
    EmpathyIdlePriv *priv;

    priv = GET_PRIV (idle);

    return priv->status;
}

void
empathy_idle_set_status (EmpathyIdle *idle,
             const gchar *status)
{
    EmpathyIdlePriv *priv;

    priv = GET_PRIV (idle);

    mission_control_set_presence (priv->mc,
                      priv->state,
                      status,
                      NULL, NULL);
}

McPresence
empathy_idle_get_slack_state (EmpathyIdle *idle)
{
    EmpathyIdlePriv *priv;

    priv = GET_PRIV (idle);

    return priv->slack_state;
}

void
empathy_idle_set_slack_state (EmpathyIdle *idle,
                  McPresence   state)
{
    EmpathyIdlePriv *priv;

    priv = GET_PRIV (idle);

    priv->slack_state = state;

    g_object_notify (G_OBJECT (idle), "slack-state");
}

static void
idle_presence_changed_cb (MissionControl *mc,
              McPresence      state,
              EmpathyIdle    *idle)
{
    EmpathyIdlePriv *priv;

    priv = GET_PRIV (idle);

    g_free (priv->status);
    priv->state = state;
    priv->status = mission_control_get_presence_message_actual (priv->mc, NULL);

    if (G_STR_EMPTY (priv->status)) {
        g_free (priv->status);
        priv->status = g_strdup (gossip_presence_state_get_default_status (state));
    }

    g_object_notify (G_OBJECT (idle), "state");
    g_object_notify (G_OBJECT (idle), "status");
}

static void
idle_session_idle_changed_cb (DBusGProxy  *gs_proxy,
                  gboolean     is_idle,
                  EmpathyIdle *idle)
{
    EmpathyIdlePriv *priv;

    priv = GET_PRIV (idle);

    gossip_debug (DEBUG_DOMAIN, "Session idle state changed, %s -> %s",
              priv->is_idle ? "yes" : "no",
              is_idle ? "yes" : "no");

    if (is_idle && !priv->is_idle) {
        McPresence new_state;
        /* We are now idle, set state to away */

        if (priv->state <= MC_PRESENCE_OFFLINE ||
            priv->state == MC_PRESENCE_HIDDEN) {
            /* We are not online so nothing to do here */
            return;
        } else if (priv->state == MC_PRESENCE_AWAY ||
               priv->state == MC_PRESENCE_EXTENDED_AWAY) {
            /* User set away manually, when coming back we restore
             * default presence. */
            new_state = priv->state;
            priv->saved_state = MC_PRESENCE_AVAILABLE;
            priv->saved_status = NULL;
        } else {
            new_state = MC_PRESENCE_AWAY;
            priv->saved_state = priv->state;
            priv->saved_status = g_strdup (priv->status);
        }

        gossip_debug (DEBUG_DOMAIN, "Going to autoaway");
        empathy_idle_set_state (idle, new_state);

        idle_ext_away_start (idle);
    } else if (!is_idle && priv->is_idle) {
        /* We are no more idle, restore state */
        idle_ext_away_stop (idle);

        gossip_debug (DEBUG_DOMAIN, "Restoring state to %d %s",
                  priv->saved_state,
                  priv->saved_status);

        mission_control_set_presence (priv->mc,
                          priv->saved_state,
                          priv->saved_status,
                          NULL, NULL);

        g_free (priv->saved_status);
        priv->saved_status = NULL;
    }

    priv->is_idle = is_idle;
}

static void
idle_ext_away_start (EmpathyIdle *idle)
{
    EmpathyIdlePriv *priv;

    priv = GET_PRIV (idle);

    idle_ext_away_stop (idle);
    priv->ext_away_timeout = g_timeout_add (EXT_AWAY_TIME * 1000,
                        (GSourceFunc) idle_ext_away_cb,
                        idle);
}

static void
idle_ext_away_stop (EmpathyIdle *idle)
{
    EmpathyIdlePriv *priv;

    priv = GET_PRIV (idle);

    if (priv->ext_away_timeout) {
        g_source_remove (priv->ext_away_timeout);
        priv->ext_away_timeout = 0;
    }
}

static gboolean
idle_ext_away_cb (EmpathyIdle *idle)
{
    EmpathyIdlePriv *priv;

    priv = GET_PRIV (idle);

    gossip_debug (DEBUG_DOMAIN, "Going to extended autoaway");
    mission_control_set_presence (priv->mc,
                      MC_PRESENCE_EXTENDED_AWAY,
                      priv->saved_status,
                      NULL, NULL);

    priv->ext_away_timeout = 0;

    return FALSE;
}