path: root/libempathy/empathy-account-manager.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Copyright (C) 2008 Collabora Ltd.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Authors: Cosimo Cecchi <cosimo.cecchi@collabora.co.uk>
 */

#include <config.h>

#include <libmissioncontrol/mc-account-monitor.h>

#include "empathy-account-manager.h"
#include "empathy-marshal.h"
#include "empathy-utils.h"

#define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyAccountManager)

typedef struct {
    McAccountMonitor *monitor;
    MissionControl   *mc;

    GHashTable       *accounts;
    int               connected;
    int               connecting;
} EmpathyAccountManagerPriv;

typedef struct {
    McPresence presence;
    TpConnectionStatus connection;
    gboolean is_enabled;

    guint source_id;
} AccountData;

enum {
    ACCOUNT_CREATED,
    ACCOUNT_DELETED,
    ACCOUNT_ENABLED,
    ACCOUNT_DISABLED,
    ACCOUNT_CHANGED,
    ACCOUNT_CONNECTION_CHANGED,
    ACCOUNT_PRESENCE_CHANGED,
    LAST_SIGNAL
};

static guint signals[LAST_SIGNAL];
static EmpathyAccountManager *manager = NULL;

G_DEFINE_TYPE (EmpathyAccountManager, empathy_account_manager, G_TYPE_OBJECT);

static AccountData *
account_data_new (McPresence presence, TpConnectionStatus connection,
          gboolean is_enabled)
{
    AccountData *retval;

    retval = g_slice_new0 (AccountData);
    retval->presence = presence;
    retval->connection = connection;
    retval->is_enabled = is_enabled;
    retval->source_id = 0;

    return retval;
}

static AccountData *
account_data_new_default (MissionControl *mc,
              McAccount *account)
{
    McPresence actual_p;
    TpConnectionStatus actual_c;
    GError *err = NULL;

    actual_p = mission_control_get_presence_actual (mc, &err);
    if (err) {
        actual_p = MC_PRESENCE_UNSET;
        g_clear_error (&err);
    }

    actual_c = mission_control_get_connection_status (mc,
                              account, &err);
    if (err) {
        actual_c = TP_CONNECTION_STATUS_DISCONNECTED;
    }

    return account_data_new (actual_p, actual_c, mc_account_is_enabled (account));
}

static void
account_data_free (AccountData *data)
{
    if (data->source_id > 0) {
        g_source_remove (data->source_id);
        data->source_id = 0;
    }

    g_slice_free (AccountData, data);
}

static void
account_created_cb (McAccountMonitor *mon,
            gchar *account_name,
            EmpathyAccountManager *manager)
{
    McAccount *account;
    EmpathyAccountManagerPriv *priv = GET_PRIV (manager);

    account = mc_account_lookup (account_name);

    if (account) {
        AccountData *data;

        data = account_data_new_default (priv->mc, account);

        g_hash_table_insert (priv->accounts, account, data);

        g_signal_emit (manager, signals[ACCOUNT_CREATED], 0, account);
    }
}

static void
account_deleted_cb (McAccountMonitor *mon,
            gchar *account_name,
            EmpathyAccountManager *manager)
{
    McAccount *account;
    EmpathyAccountManagerPriv *priv = GET_PRIV (manager);

    account = mc_account_lookup (account_name);

    if (account) {
        g_signal_emit (manager, signals[ACCOUNT_DELETED], 0, account);

        g_hash_table_remove (priv->accounts, account);
        g_object_unref (account);
    }
}

static void
account_changed_cb (McAccountMonitor *mon,
            gchar *account_name,
            EmpathyAccountManager *manager)
{
    McAccount *account;

    account = mc_account_lookup (account_name);

    if (account) {
        g_signal_emit (manager, signals[ACCOUNT_CHANGED], 0, account);
        g_object_unref (account);
    }
}

static void
account_disabled_cb (McAccountMonitor *mon,
             gchar *account_name,
             EmpathyAccountManager *manager)
{
    McAccount *account;
    EmpathyAccountManagerPriv *priv = GET_PRIV (manager);
    AccountData *data;

    account = mc_account_lookup (account_name);

    if (account) {
        data = g_hash_table_lookup (priv->accounts, account);
        g_assert (data);
        data->is_enabled = FALSE;

        g_signal_emit (manager, signals[ACCOUNT_DISABLED], 0, account);
    }
}

static void
account_enabled_cb (McAccountMonitor *mon,
            gchar *account_name,
            EmpathyAccountManager *manager)
{
    McAccount *account;
    EmpathyAccountManagerPriv *priv = GET_PRIV (manager);
    AccountData *data;

    account = mc_account_lookup (account_name);

    if (account) {
        data = g_hash_table_lookup (priv->accounts, account);
        g_assert (data);
        data->is_enabled = TRUE;

        g_signal_emit (manager, signals[ACCOUNT_ENABLED], 0, account);
        g_object_unref (account);
    }
}

static void
update_connection_numbers (EmpathyAccountManager *manager,
               TpConnectionStatus conn,
               TpConnectionStatus old_c)
{
    EmpathyAccountManagerPriv *priv = GET_PRIV (manager);

    if (conn == TP_CONNECTION_STATUS_CONNECTED) {
        priv->connected++;
        if (old_c == TP_CONNECTION_STATUS_CONNECTING) {
            priv->connecting--;
        }
    }

    if (conn == TP_CONNECTION_STATUS_CONNECTING) {
        priv->connecting++;
        if (old_c == TP_CONNECTION_STATUS_CONNECTED) {
            priv->connected--;
        }
    }

    if (conn == TP_CONNECTION_STATUS_DISCONNECTED) {
        if (old_c == TP_CONNECTION_STATUS_CONNECTED) {
            priv->connected--;
        }
        if (old_c == TP_CONNECTION_STATUS_CONNECTING) {
            priv->connecting--;
        }
    }
}

static gboolean
remove_data_timeout (gpointer _data)
{
    AccountData *data = _data;

    data->source_id = 0;

    return FALSE;
}

static void
account_status_changed_cb (MissionControl *mc,
               TpConnectionStatus connection,
               McPresence presence,
               TpConnectionStatusReason reason,
               const gchar *unique_name,
               EmpathyAccountManager *manager)
{
    McAccount *account;
    EmpathyAccountManagerPriv *priv = GET_PRIV (manager);
    AccountData *data;
    McPresence old_p;
    TpConnectionStatus old_c;

    account = mc_account_lookup (unique_name);

    if (account) {
        data = g_hash_table_lookup (priv->accounts, account);
        g_assert (data);

        old_p = data->presence;
        old_c = data->connection;

        if (old_p != presence) {
            data->presence = presence;
            g_signal_emit (manager, signals[ACCOUNT_PRESENCE_CHANGED], 0,
                       account, presence, old_p);
        }

        if (old_c != connection) {
            data->connection = connection;
            update_connection_numbers (manager, connection, old_c);

            g_signal_emit (manager, signals[ACCOUNT_CONNECTION_CHANGED], 0,
                       account, reason, connection, old_c);

            if (old_c == TP_CONNECTION_STATUS_CONNECTING &&
                connection == TP_CONNECTION_STATUS_CONNECTED) {
                if (data->source_id > 0) {
                    g_source_remove (data->source_id);
                    data->source_id = 0;
                }

                data->source_id = g_timeout_add_seconds (10,
                                     remove_data_timeout,
                                     data);
            }
        }

        g_object_unref (account);
    }
}

static void
empathy_account_manager_init (EmpathyAccountManager *manager)
{
    EmpathyAccountManagerPriv *priv =
        G_TYPE_INSTANCE_GET_PRIVATE (manager,
                         EMPATHY_TYPE_ACCOUNT_MANAGER, EmpathyAccountManagerPriv);
    GList *mc_accounts, *l;
    AccountData *data;

    manager->priv = priv;
    priv->monitor = mc_account_monitor_new ();
    priv->mc = empathy_mission_control_new ();
    priv->connected = priv->connecting = 0;

    priv->accounts = g_hash_table_new_full (empathy_account_hash,
                        empathy_account_equal,
                        g_object_unref, 
                        (GDestroyNotify) account_data_free);

    mc_accounts = mc_accounts_list ();

    for (l = mc_accounts; l; l = l->next) {
        data = account_data_new_default (priv->mc, l->data);

        g_hash_table_insert (priv->accounts, g_object_ref (l->data),
                     data);
    }

    g_signal_connect (priv->monitor, "account-created",
              G_CALLBACK (account_created_cb), manager);
    g_signal_connect (priv->monitor, "account-deleted",
              G_CALLBACK (account_deleted_cb), manager);
    g_signal_connect (priv->monitor, "account-disabled",
              G_CALLBACK (account_disabled_cb), manager);
    g_signal_connect (priv->monitor, "account-enabled",
              G_CALLBACK (account_enabled_cb), manager);
    g_signal_connect (priv->monitor, "account-changed",
              G_CALLBACK (account_changed_cb), manager);

    dbus_g_proxy_connect_signal (DBUS_G_PROXY (priv->mc), "AccountStatusChanged",
                     G_CALLBACK (account_status_changed_cb),
                     manager, NULL);
}

static void
disconnect_monitor_signals (McAccountMonitor *monitor,
                GObject *obj)
{
    g_signal_handlers_disconnect_by_func (monitor,
                          account_created_cb, obj);
    g_signal_handlers_disconnect_by_func (monitor,
                          account_deleted_cb, obj);
    g_signal_handlers_disconnect_by_func (monitor,
                          account_disabled_cb, obj);
    g_signal_handlers_disconnect_by_func (monitor,
                          account_enabled_cb, obj);
    g_signal_handlers_disconnect_by_func (monitor,
                          account_changed_cb, obj);
}
                       
static void
do_finalize (GObject *obj)
{
    EmpathyAccountManager *manager = EMPATHY_ACCOUNT_MANAGER (obj);
    EmpathyAccountManagerPriv *priv = GET_PRIV (manager);

    dbus_g_proxy_disconnect_signal (DBUS_G_PROXY (priv->mc),
                    "AccountStatusChanged",
                    G_CALLBACK (account_status_changed_cb),
                    obj);

    disconnect_monitor_signals (priv->monitor, obj);

    g_object_unref (priv->monitor);
    g_object_unref (priv->mc);

    g_hash_table_destroy (priv->accounts);

    G_OBJECT_CLASS (empathy_account_manager_parent_class)->finalize (obj);
}

static void
empathy_account_manager_class_init (EmpathyAccountManagerClass *klass)
{
    GObjectClass *oclass = G_OBJECT_CLASS (klass);

    oclass->finalize = do_finalize;

    signals[ACCOUNT_CREATED] =
        g_signal_new ("account-created",
                  G_TYPE_FROM_CLASS (klass),
                  G_SIGNAL_RUN_LAST,
                  0,
                  NULL, NULL,
                  g_cclosure_marshal_VOID__OBJECT,
                  G_TYPE_NONE,
                  1, MC_TYPE_ACCOUNT);
    signals[ACCOUNT_DELETED] =
        g_signal_new ("account-deleted",
                  G_TYPE_FROM_CLASS (klass),
                  G_SIGNAL_RUN_LAST,
                  0,
                  NULL, NULL,
                  g_cclosure_marshal_VOID__OBJECT,
                  G_TYPE_NONE,
                  1, MC_TYPE_ACCOUNT);

    signals[ACCOUNT_ENABLED] =
        g_signal_new ("account-enabled",
                  G_TYPE_FROM_CLASS (klass),
                  G_SIGNAL_RUN_LAST,
                  0,
                  NULL, NULL,
                  g_cclosure_marshal_VOID__OBJECT,
                  G_TYPE_NONE,
                  1, MC_TYPE_ACCOUNT);

    signals[ACCOUNT_DISABLED] =
        g_signal_new ("account-disabled",
                  G_TYPE_FROM_CLASS (klass),
                  G_SIGNAL_RUN_LAST,
                  0,
                  NULL, NULL,
                  g_cclosure_marshal_VOID__OBJECT,
                  G_TYPE_NONE,
                  1, MC_TYPE_ACCOUNT);

    signals[ACCOUNT_CHANGED] =
        g_signal_new ("account-changed",
                  G_TYPE_FROM_CLASS (klass),
                  G_SIGNAL_RUN_LAST,
                  0,
                  NULL, NULL,
                  g_cclosure_marshal_VOID__OBJECT,
                  G_TYPE_NONE,
                  1, MC_TYPE_ACCOUNT);

    signals[ACCOUNT_CONNECTION_CHANGED] =
        g_signal_new ("account-connection-changed",
                  G_TYPE_FROM_CLASS (klass),
                  G_SIGNAL_RUN_LAST,
                  0,
                  NULL, NULL,
                  _empathy_marshal_VOID__OBJECT_INT_UINT_UINT,
                  G_TYPE_NONE,
                  4, MC_TYPE_ACCOUNT,
                  G_TYPE_INT,   /* reason */
                  G_TYPE_UINT,  /* actual connection */
                  G_TYPE_UINT); /* previous connection */

    signals[ACCOUNT_PRESENCE_CHANGED] =
        g_signal_new ("account-presence-changed",
                  G_TYPE_FROM_CLASS (klass),
                  G_SIGNAL_RUN_LAST,
                  0,
                  NULL, NULL,
                  _empathy_marshal_VOID__OBJECT_INT_INT,
                  G_TYPE_NONE,
                  3, MC_TYPE_ACCOUNT,
                  G_TYPE_INT,  /* actual presence */
                  G_TYPE_INT); /* previous presence */


    g_type_class_add_private (oclass, sizeof (EmpathyAccountManagerPriv));
}

/* public methods */

EmpathyAccountManager *
empathy_account_manager_new (void)
{
    if (!manager) {
        manager = g_object_new (EMPATHY_TYPE_ACCOUNT_MANAGER, NULL);
        g_object_add_weak_pointer (G_OBJECT (manager), (gpointer) &manager);
    } else {
        g_object_ref (manager);
    }

    return manager;
}

int
empathy_account_manager_get_connected_accounts (EmpathyAccountManager *manager)
{
    EmpathyAccountManagerPriv *priv;

    g_assert (EMPATHY_IS_ACCOUNT_MANAGER (manager));

    priv = GET_PRIV (manager);

    return priv->connected;
}

int
empathy_account_manager_get_connecting_accounts (EmpathyAccountManager *manager)
{
    EmpathyAccountManagerPriv *priv;

    g_assert (EMPATHY_IS_ACCOUNT_MANAGER (manager));

    priv = GET_PRIV (manager);

    return priv->connecting;
}

gboolean
empathy_account_manager_is_account_just_connected (EmpathyAccountManager *manager,
                           McAccount *account)
{
    EmpathyAccountManagerPriv *priv;
    AccountData *data;

    g_assert (EMPATHY_IS_ACCOUNT_MANAGER (manager));

    priv = GET_PRIV (manager);
    data = g_hash_table_lookup (priv->accounts, account);

    g_assert (data);

    return (data->source_id > 0);
}