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

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Copyright (C) 2007-2008 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: Xavier Claessens <xclaesse@gmail.com>
 */

#include <config.h>

#include <string.h>

#include <telepathy-glib/account-manager.h>
#include <telepathy-glib/enums.h>
#include <telepathy-glib/proxy-subclass.h>
#include <telepathy-glib/util.h>

#include <extensions/extensions.h>

#include "empathy-contact-manager.h"
#include "empathy-contact-monitor.h"
#include "empathy-contact-list.h"
#include "empathy-utils.h"

#define DEBUG_FLAG EMPATHY_DEBUG_CONTACT
#include "empathy-debug.h"

#define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyContactManager)
typedef struct {
    GHashTable     *lists;
    TpAccountManager *account_manager;
    EmpathyContactMonitor *contact_monitor;
    TpProxy *logger;
    /* account object path (gchar *) => GHashTable containing favorite contacts
     * (contact ID (gchar *) => TRUE) */
    GHashTable *favourites;
    TpProxySignalConnection *favourite_contacts_changed_signal;
} EmpathyContactManagerPriv;

static void contact_manager_iface_init         (EmpathyContactListIface    *iface);

G_DEFINE_TYPE_WITH_CODE (EmpathyContactManager, empathy_contact_manager, G_TYPE_OBJECT,
             G_IMPLEMENT_INTERFACE (EMPATHY_TYPE_CONTACT_LIST,
                        contact_manager_iface_init));

static EmpathyContactManager *manager_singleton = NULL;

static void
contact_manager_members_changed_cb (EmpathyTpContactList  *list,
                    EmpathyContact        *contact,
                    EmpathyContact        *actor,
                    guint                  reason,
                    gchar                 *message,
                    gboolean               is_member,
                    EmpathyContactManager *manager)
{
    g_signal_emit_by_name (manager, "members-changed",
                   contact, actor, reason, message, is_member);
}

static void
contact_manager_pendings_changed_cb (EmpathyTpContactList  *list,
                     EmpathyContact        *contact,
                     EmpathyContact        *actor,
                     guint                  reason,
                     gchar                 *message,
                     gboolean               is_pending,
                     EmpathyContactManager *manager)
{
    g_signal_emit_by_name (manager, "pendings-changed",
                   contact, actor, reason, message, is_pending);
}

static void
contact_manager_groups_changed_cb (EmpathyTpContactList  *list,
                   EmpathyContact        *contact,
                   gchar                 *group,
                   gboolean               is_member,
                   EmpathyContactManager *manager)
{
    g_signal_emit_by_name (manager, "groups-changed",
                   contact, group, is_member);
}

static void
contact_manager_invalidated_cb (TpProxy *connection,
                guint    domain,
                gint     code,
                gchar   *message,
                EmpathyContactManager *manager)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);
    EmpathyTpContactList *list;

    DEBUG ("Removing connection: %s (%s)",
        tp_proxy_get_object_path (TP_PROXY (connection)),
        message);

    list = g_hash_table_lookup (priv->lists, connection);
    if (list) {
        empathy_tp_contact_list_remove_all (list);
        g_hash_table_remove (priv->lists, connection);
    }
}

static void
contact_manager_disconnect_foreach (gpointer key,
                    gpointer value,
                    gpointer user_data)
{
    TpConnection *connection = key;
    EmpathyTpContactList  *list = value;
    EmpathyContactManager *manager = user_data;

    /* Disconnect signals from the list */
    g_signal_handlers_disconnect_by_func (list,
                          contact_manager_members_changed_cb,
                          manager);
    g_signal_handlers_disconnect_by_func (list,
                          contact_manager_pendings_changed_cb,
                          manager);
    g_signal_handlers_disconnect_by_func (list,
                          contact_manager_groups_changed_cb,
                          manager);
    g_signal_handlers_disconnect_by_func (connection,
                          contact_manager_invalidated_cb,
                          manager);
}

static void
contact_manager_status_changed_cb (TpAccount *account,
                   guint old_status,
                   guint new_status,
                   guint reason,
                   gchar *dbus_error_name,
                   GHashTable *details,
                   EmpathyContactManager *self)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (self);
    EmpathyTpContactList      *list;
    TpConnection              *connection;

    if (new_status == TP_CONNECTION_STATUS_DISCONNECTED)
        /* No point to start tracking a connection which is about to die */
        return;

    connection = tp_account_get_connection (account);

    if (connection == NULL || g_hash_table_lookup (priv->lists, connection)) {
        return;
    }

    DEBUG ("Adding new connection: %s",
        tp_proxy_get_object_path (TP_PROXY (connection)));

    list = empathy_tp_contact_list_new (connection);
    g_hash_table_insert (priv->lists, g_object_ref (connection), list);
    g_signal_connect (connection, "invalidated",
              G_CALLBACK (contact_manager_invalidated_cb),
              self);

    /* Connect signals */
    g_signal_connect (list, "members-changed",
              G_CALLBACK (contact_manager_members_changed_cb),
              self);
    g_signal_connect (list, "pendings-changed",
              G_CALLBACK (contact_manager_pendings_changed_cb),
              self);
    g_signal_connect (list, "groups-changed",
              G_CALLBACK (contact_manager_groups_changed_cb),
              self);
}

static void
contact_manager_validity_changed_cb (TpAccountManager *account_manager,
                     TpAccount *account,
                     gboolean valid,
                     EmpathyContactManager *manager)
{
    if (valid) {
        empathy_signal_connect_weak (account, "status-changed",
                G_CALLBACK (contact_manager_status_changed_cb),
                G_OBJECT (manager));
    }
}

static gboolean
contact_manager_is_favourite (EmpathyContactList *manager,
                  EmpathyContact     *contact)
{
    EmpathyContactManagerPriv *priv;
    TpAccount *account;
    const gchar *account_name;
    GHashTable *contact_hash;

    g_return_val_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager), FALSE);
    g_return_val_if_fail (EMPATHY_IS_CONTACT (contact), FALSE);

    priv = GET_PRIV (manager);

    account = empathy_contact_get_account (contact);
    account_name = tp_proxy_get_object_path (TP_PROXY (account));
    contact_hash = g_hash_table_lookup (priv->favourites, account_name);

    if (contact_hash != NULL) {
        const gchar *contact_id = empathy_contact_get_id (contact);

        if (g_hash_table_lookup (contact_hash, contact_id) != NULL)
            return TRUE;
    }

    return FALSE;
}

static void
add_favourite_contact_cb (TpProxy *proxy,
              const GError *error,
              gpointer user_data,
              GObject *weak_object)
{
    if (error != NULL)
        DEBUG ("AddFavouriteContact failed: %s", error->message);
}

static void
contact_manager_add_favourite (EmpathyContactList *manager,
                   EmpathyContact *contact)
{
    EmpathyContactManagerPriv *priv;
    TpAccount *account;
    const gchar *account_name;

    g_return_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager));
    g_return_if_fail (EMPATHY_IS_CONTACT (contact));

    priv = GET_PRIV (manager);

    account = empathy_contact_get_account (contact);
    account_name = tp_proxy_get_object_path (TP_PROXY (account));

    emp_cli_logger_call_add_favourite_contact (priv->logger, -1,
                           account_name,
                           empathy_contact_get_id (contact),
                           add_favourite_contact_cb, NULL, NULL, G_OBJECT (manager));
}

static void
remove_favourite_contact_cb (TpProxy *proxy,
                 const GError *error,
                 gpointer user_data,
                 GObject *weak_object)
{
    if (error != NULL)
        DEBUG ("RemoveFavouriteContact failed: %s", error->message);
}

static void
contact_manager_remove_favourite (EmpathyContactList *manager,
                  EmpathyContact *contact)
{
    EmpathyContactManagerPriv *priv;
    TpAccount *account;
    const gchar *account_name;

    g_return_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager));
    g_return_if_fail (EMPATHY_IS_CONTACT (contact));

    priv = GET_PRIV (manager);

    account = empathy_contact_get_account (contact);
    account_name = tp_proxy_get_object_path (TP_PROXY (account));

    emp_cli_logger_call_remove_favourite_contact (priv->logger, -1,
                              account_name,
                              empathy_contact_get_id (contact),
                              remove_favourite_contact_cb, NULL, NULL, G_OBJECT (manager));
}

static void
add_contacts_to_favourites (EmpathyContactManager *self,
                const gchar *account,
                const gchar **contacts)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (self);
    guint j;
    GHashTable *contact_hash;

    contact_hash = g_hash_table_lookup (priv->favourites, account);
    if (contact_hash == NULL) {
        contact_hash = g_hash_table_new_full (g_str_hash,
                              g_str_equal,
                              g_free, NULL);

        g_hash_table_insert (priv->favourites,
                     g_strdup (account),
                     contact_hash);
    }

    for (j = 0; contacts && contacts[j] != NULL; j++) {
        g_hash_table_insert (contact_hash,
                     g_strdup (contacts[j]),
                     GINT_TO_POINTER (1));
    }
}

static void
logger_favourite_contacts_add_from_value_array (GValueArray           *va,
                        EmpathyContactManager *manager)
{
    const gchar *account;
    const gchar **contacts;

    account = g_value_get_boxed (g_value_array_get_nth (va, 0));
    contacts = g_value_get_boxed (g_value_array_get_nth (va, 1));

    add_contacts_to_favourites (manager, account, contacts);
}

static void
logger_favourite_contacts_get_cb (TpProxy         *proxy,
                  const GPtrArray *result,
                  const GError    *error,
                  gpointer         user_data,
                  GObject         *weak_object)
{
    EmpathyContactManager *manager = EMPATHY_CONTACT_MANAGER (weak_object);

    if (error == NULL) {
        g_ptr_array_foreach ((GPtrArray *) result,
                (GFunc)
                logger_favourite_contacts_add_from_value_array,
                manager);
    } else {
        DEBUG ("Failed to get the FavouriteContacts property: %s",
                error->message);
    }
}

static void
logger_favourite_contacts_setup (EmpathyContactManager *manager)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);

    emp_cli_logger_call_get_favourite_contacts (priv->logger, -1,
            logger_favourite_contacts_get_cb, NULL, NULL,
            G_OBJECT (manager));
}

static void
contact_manager_finalize (GObject *object)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (object);

    tp_proxy_signal_connection_disconnect (priv->favourite_contacts_changed_signal);

    if (priv->logger != NULL)
        g_object_unref (priv->logger);

    g_hash_table_foreach (priv->lists,
                  contact_manager_disconnect_foreach,
                  object);
    g_hash_table_destroy (priv->lists);
    g_hash_table_destroy (priv->favourites);

    g_object_unref (priv->account_manager);

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

static GObject *
contact_manager_constructor (GType type,
                 guint n_props,
                 GObjectConstructParam *props)
{
    GObject *retval;

    if (manager_singleton) {
        retval = g_object_ref (manager_singleton);
    } else {
        retval = G_OBJECT_CLASS (empathy_contact_manager_parent_class)->constructor
            (type, n_props, props);

        manager_singleton = EMPATHY_CONTACT_MANAGER (retval);
        g_object_add_weak_pointer (retval, (gpointer) &manager_singleton);
    }

    return retval;
}

/**
 * empathy_contact_manager_initialized:
 *
 * Reports whether or not the singleton has already been created.
 *
 * There can be instances where you want to access the #EmpathyContactManager
 * only if it has been set up for this process.
 *
 * Returns: %TRUE if the #EmpathyContactManager singleton has previously
 * been initialized.
 */
gboolean
empathy_contact_manager_initialized (void)
{
    return (manager_singleton != NULL);
}

static void
empathy_contact_manager_class_init (EmpathyContactManagerClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);

    object_class->finalize = contact_manager_finalize;
    object_class->constructor = contact_manager_constructor;

    g_type_class_add_private (object_class, sizeof (EmpathyContactManagerPriv));
}

static void
account_manager_prepared_cb (GObject *source_object,
                 GAsyncResult *result,
                 gpointer user_data)
{
    GList *accounts, *l;
    EmpathyContactManager *manager = user_data;
    TpAccountManager *account_manager = TP_ACCOUNT_MANAGER (source_object);
    GError *error = NULL;

    if (!tp_account_manager_prepare_finish (account_manager, result, &error)) {
        DEBUG ("Failed to prepare account manager: %s", error->message);
        g_error_free (error);
        return;
    }

    accounts = tp_account_manager_get_valid_accounts (account_manager);

    for (l = accounts; l != NULL; l = l->next) {
        TpAccount *account = l->data;
        TpConnection *conn = tp_account_get_connection (account);

        if (conn != NULL) {
            contact_manager_status_changed_cb (account, 0, 0, 0,
                               NULL, NULL, manager);
        }

        empathy_signal_connect_weak (account, "status-changed",
            G_CALLBACK (contact_manager_status_changed_cb),
            G_OBJECT (manager));
    }
    g_list_free (accounts);

    empathy_signal_connect_weak (account_manager, "account-validity-changed",
                 G_CALLBACK (contact_manager_validity_changed_cb),
                 G_OBJECT (manager));
}

static EmpathyContact *
contact_manager_lookup_contact (EmpathyContactManager *manager,
                const gchar           *account_name,
                const gchar           *contact_id)
{
    EmpathyContact *retval = NULL;
    GList *members, *l;

    /* XXX: any more efficient way to do this (other than having to build
     * and maintain a hash)? */
    members = empathy_contact_list_get_members (
            EMPATHY_CONTACT_LIST (manager));
    for (l = members; l; l = l->next) {
        EmpathyContact *contact = l->data;
        TpAccount *account = empathy_contact_get_account (contact);
        const gchar *id_cur;
        const gchar *name_cur;

        id_cur = empathy_contact_get_id (contact);
        name_cur = tp_proxy_get_object_path (TP_PROXY (account));

        if (!tp_strdiff (contact_id, id_cur) &&
            !tp_strdiff (account_name, name_cur)) {
            retval = contact;
        }

        g_object_unref (contact);
    }

    g_list_free (members);

    return retval;
}

static void
logger_favourite_contacts_changed_cb (TpProxy      *proxy,
                      const gchar  *account_name,
                      const gchar **added,
                      const gchar **removed,
                      gpointer      user_data,
                      GObject      *weak_object)
{
    EmpathyContactManagerPriv *priv;
    EmpathyContactManager *manager = EMPATHY_CONTACT_MANAGER (weak_object);
    GHashTable *contact_hash;
    EmpathyContact *contact;
    gint i;

    priv = GET_PRIV (manager);

    contact_hash = g_hash_table_lookup (priv->favourites, account_name);

    /* XXX: note that, at the time of this comment, there will always be
     * exactly one contact amongst added and removed, so the linear lookup
     * of each contact isn't as painful as it appears */

    add_contacts_to_favourites (manager, account_name, added);

    for (i = 0; added && added[i]; i++) {
        contact = contact_manager_lookup_contact (manager, account_name,
                              added[i]);
        if (contact != NULL)
            g_signal_emit_by_name (manager, "favourites-changed",
                           contact, TRUE);
        else
            DEBUG ("failed to find contact for account %s, contact "
                   "id %s", account_name, added[i]);
    }

    for (i = 0; removed && removed[i]; i++) {
        contact_hash = g_hash_table_lookup (priv->favourites,
                            account_name);

        if (contact_hash != NULL) {
            g_hash_table_remove (contact_hash, removed[i]);

            if (g_hash_table_size (contact_hash) < 1) {
                g_hash_table_remove (priv->favourites,
                             account_name);
            }
        }

        contact = contact_manager_lookup_contact (manager, account_name,
                              removed[i]);
        if (contact != NULL)
            g_signal_emit_by_name (manager, "favourites-changed",
                           contact, FALSE);
        else
            DEBUG ("failed to find contact for account %s, contact "
                   "id %s", account_name, removed[i]);
    }
}

static void
empathy_contact_manager_init (EmpathyContactManager *manager)
{
    EmpathyContactManagerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
        EMPATHY_TYPE_CONTACT_MANAGER, EmpathyContactManagerPriv);
    TpDBusDaemon *bus;
    GError *error = NULL;

    manager->priv = priv;
    priv->lists = g_hash_table_new_full (empathy_proxy_hash,
                         empathy_proxy_equal,
                         (GDestroyNotify) g_object_unref,
                         (GDestroyNotify) g_object_unref);

    priv->favourites = g_hash_table_new_full (g_str_hash, g_str_equal,
                          (GDestroyNotify) g_free,
                          (GDestroyNotify)
                          g_hash_table_unref);

    priv->account_manager = tp_account_manager_dup ();
    priv->contact_monitor = NULL;

    tp_account_manager_prepare_async (priv->account_manager, NULL,
        account_manager_prepared_cb, manager);

    bus = tp_dbus_daemon_dup (&error);

    if (error == NULL) {
        priv->logger = g_object_new (TP_TYPE_PROXY,
                "bus-name", "org.freedesktop.Telepathy.Logger",
                "object-path",
                    "/org/freedesktop/Telepathy/Logger",
                "dbus-daemon", bus,
                NULL);
        g_object_unref (bus);

        tp_proxy_add_interface_by_id (priv->logger,
                EMP_IFACE_QUARK_LOGGER);

        logger_favourite_contacts_setup (manager);

        priv->favourite_contacts_changed_signal =
            emp_cli_logger_connect_to_favourite_contacts_changed (
                priv->logger,
                logger_favourite_contacts_changed_cb, NULL,
                NULL, G_OBJECT (manager), NULL);
    } else {
        DEBUG ("Failed to get telepathy-logger proxy: %s",
                error->message);
        g_clear_error (&error);
    }
}

EmpathyContactManager *
empathy_contact_manager_dup_singleton (void)
{
    return g_object_new (EMPATHY_TYPE_CONTACT_MANAGER, NULL);
}

EmpathyTpContactList *
empathy_contact_manager_get_list (EmpathyContactManager *manager,
                  TpConnection          *connection)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);

    g_return_val_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager), NULL);
    g_return_val_if_fail (TP_IS_CONNECTION (connection), NULL);

    return g_hash_table_lookup (priv->lists, connection);
}

static void
contact_manager_add (EmpathyContactList *manager,
             EmpathyContact     *contact,
             const gchar        *message)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);
    EmpathyContactList        *list;
    TpConnection              *connection;

    g_return_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager));

    connection = empathy_contact_get_connection (contact);
    list = g_hash_table_lookup (priv->lists, connection);

    if (list) {
        empathy_contact_list_add (list, contact, message);
    }
}

static void
contact_manager_remove (EmpathyContactList *manager,
            EmpathyContact     *contact,
            const gchar        *message)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);
    EmpathyContactList        *list;
    TpConnection              *connection;

    g_return_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager));

    connection = empathy_contact_get_connection (contact);
    list = g_hash_table_lookup (priv->lists, connection);

    if (list) {
        empathy_contact_list_remove (list, contact, message);
    }
}

static void
contact_manager_get_members_foreach (TpConnection          *connection,
                     EmpathyTpContactList  *list,
                     GList                **contacts)
{
    GList *l;

    l = empathy_contact_list_get_members (EMPATHY_CONTACT_LIST (list));
    *contacts = g_list_concat (*contacts, l);
}

static GList *
contact_manager_get_members (EmpathyContactList *manager)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);
    GList                     *contacts = NULL;

    g_return_val_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager), NULL);

    g_hash_table_foreach (priv->lists,
                  (GHFunc) contact_manager_get_members_foreach,
                  &contacts);

    return contacts;
}

static EmpathyContactMonitor *
contact_manager_get_monitor (EmpathyContactList *manager)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);

    if (priv->contact_monitor == NULL) {
        priv->contact_monitor = empathy_contact_monitor_new_for_iface (manager);
    }

    return priv->contact_monitor;
}

static void
contact_manager_get_pendings_foreach (TpConnection          *connection,
                      EmpathyTpContactList  *list,
                      GList                **contacts)
{
    GList *l;

    l = empathy_contact_list_get_pendings (EMPATHY_CONTACT_LIST (list));
    *contacts = g_list_concat (*contacts, l);
}

static GList *
contact_manager_get_pendings (EmpathyContactList *manager)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);
    GList                     *contacts = NULL;

    g_return_val_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager), NULL);

    g_hash_table_foreach (priv->lists,
                  (GHFunc) contact_manager_get_pendings_foreach,
                  &contacts);

    return contacts;
}

static void
contact_manager_get_all_groups_foreach (TpConnection          *connection,
                    EmpathyTpContactList  *list,
                    GList                **all_groups)
{
    GList *groups, *l;

    groups = empathy_contact_list_get_all_groups (EMPATHY_CONTACT_LIST (list));
    for (l = groups; l; l = l->next) {
        if (!g_list_find_custom (*all_groups,
                     l->data,
                     (GCompareFunc) strcmp)) {
            *all_groups = g_list_prepend (*all_groups, l->data);
        } else {
            g_free (l->data);
        }
    }

    g_list_free (groups);
}

static GList *
contact_manager_get_all_groups (EmpathyContactList *manager)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);
    GList                     *groups = NULL;

    g_return_val_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager), NULL);

    g_hash_table_foreach (priv->lists,
                  (GHFunc) contact_manager_get_all_groups_foreach,
                  &groups);

    return groups;
}

static GList *
contact_manager_get_groups (EmpathyContactList *manager,
                EmpathyContact     *contact)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);
    EmpathyContactList        *list;
    TpConnection              *connection;

    g_return_val_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager), NULL);

    connection = empathy_contact_get_connection (contact);
    list = g_hash_table_lookup (priv->lists, connection);

    if (list) {
        return empathy_contact_list_get_groups (list, contact);
    }

    return NULL;
}

static void
contact_manager_add_to_group (EmpathyContactList *manager,
                  EmpathyContact     *contact,
                  const gchar        *group)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);
    EmpathyContactList        *list;
    TpConnection              *connection;

    g_return_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager));

    connection = empathy_contact_get_connection (contact);
    list = g_hash_table_lookup (priv->lists, connection);

    if (list) {
        empathy_contact_list_add_to_group (list, contact, group);
    }
}

static void
contact_manager_remove_from_group (EmpathyContactList *manager,
                   EmpathyContact     *contact,
                   const gchar        *group)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);
    EmpathyContactList        *list;
    TpConnection              *connection;

    g_return_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager));

    connection = empathy_contact_get_connection (contact);
    list = g_hash_table_lookup (priv->lists, connection);

    if (list) {
        empathy_contact_list_remove_from_group (list, contact, group);
    }
}

typedef struct {
    const gchar *old_group;
    const gchar *new_group;
} RenameGroupData;

static void
contact_manager_rename_group_foreach (TpConnection         *connection,
                      EmpathyTpContactList *list,
                      RenameGroupData      *data)
{
    empathy_contact_list_rename_group (EMPATHY_CONTACT_LIST (list),
                       data->old_group,
                       data->new_group);
}

static void
contact_manager_rename_group (EmpathyContactList *manager,
                  const gchar        *old_group,
                  const gchar        *new_group)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);
    RenameGroupData            data;

    g_return_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager));

    data.old_group = old_group;
    data.new_group = new_group;
    g_hash_table_foreach (priv->lists,
                  (GHFunc) contact_manager_rename_group_foreach,
                  &data);
}

static void contact_manager_remove_group_foreach (TpConnection         *connection,
                          EmpathyTpContactList *list,
                          const gchar *group)
{
    empathy_contact_list_remove_group (EMPATHY_CONTACT_LIST (list),
                       group);
}

static void
contact_manager_remove_group (EmpathyContactList *manager,
                  const gchar *group)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);

    g_return_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager));

    g_hash_table_foreach (priv->lists,
                  (GHFunc) contact_manager_remove_group_foreach,
                  (gpointer) group);
}

static void
contact_manager_iface_init (EmpathyContactListIface *iface)
{
    iface->add               = contact_manager_add;
    iface->remove            = contact_manager_remove;
    iface->get_members       = contact_manager_get_members;
    iface->get_monitor       = contact_manager_get_monitor;
    iface->get_pendings      = contact_manager_get_pendings;
    iface->get_all_groups    = contact_manager_get_all_groups;
    iface->get_groups        = contact_manager_get_groups;
    iface->add_to_group      = contact_manager_add_to_group;
    iface->remove_from_group = contact_manager_remove_from_group;
    iface->rename_group      = contact_manager_rename_group;
    iface->remove_group  = contact_manager_remove_group;
    iface->is_favourite      = contact_manager_is_favourite;
    iface->remove_favourite  = contact_manager_remove_favourite;
    iface->add_favourite     = contact_manager_add_favourite;
}

EmpathyContactListFlags
empathy_contact_manager_get_flags_for_connection (
                EmpathyContactManager *manager,
                TpConnection          *connection)
{
    EmpathyContactManagerPriv *priv = GET_PRIV (manager);
    EmpathyContactList        *list;
    EmpathyContactListFlags    flags;

    g_return_val_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager), FALSE);
    g_return_val_if_fail (connection != NULL, FALSE);

    list = g_hash_table_lookup (priv->lists, connection);
    if (list == NULL) {
        return FALSE;
    }
    flags = empathy_contact_list_get_flags (list);

    return flags;
}