path: root/libempathy/empathy-contact-manager.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 <string.h>

#include <libtelepathy/tp-constants.h>

#include "empathy-contact-manager.h"
#include "empathy-contact-list.h"
#include "gossip-utils.h"
#include "gossip-debug.h"

#define GET_PRIV(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
               EMPATHY_TYPE_CONTACT_MANAGER, EmpathyContactManagerPriv))

#define DEBUG_DOMAIN "ContactManager"

struct _EmpathyContactManagerPriv {
    GHashTable     *lists;
    MissionControl *mc;
    gboolean        setup;
};

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

typedef struct {
    GossipContact *contact;
    const gchar   *id;
} ContactManagerFindData;

static void           empathy_contact_manager_class_init   (EmpathyContactManagerClass      *klass);
static void           contact_manager_iface_init           (EmpathyContactListIface         *iface);
static void           empathy_contact_manager_init         (EmpathyContactManager           *manager);
static void           contact_manager_finalize             (GObject                         *object);
static void           contact_manager_setup                (EmpathyContactList              *manager);
static GossipContact *contact_manager_find                 (EmpathyContactList              *manager,
                                const gchar                     *id);
static void           contact_manager_add                  (EmpathyContactList              *manager,
                                GossipContact                   *contact,
                                const gchar                     *message);
static void           contact_manager_remove               (EmpathyContactList              *manager,
                                GossipContact                   *contact,
                                const gchar                     *message);
static GList *        contact_manager_get_contacts         (EmpathyContactList              *manager);
static void           contact_manager_setup_foreach        (McAccount                       *account,
                                EmpathyTpContactList            *list,
                                EmpathyContactManager           *manager);
static gboolean       contact_manager_find_foreach         (McAccount                       *account,
                                EmpathyTpContactList            *list,
                                ContactManagerFindData          *data);
static void           contact_manager_add_account          (EmpathyContactManager           *manager,
                                McAccount                       *account);
static void           contact_manager_added_cb             (EmpathyTpContactList            *list,
                                GossipContact                   *contact,
                                EmpathyContactManager           *manager);
static void           contact_manager_removed_cb           (EmpathyTpContactList            *list,
                                GossipContact                   *contact,
                                EmpathyContactManager           *manager);
static void           contact_manager_destroy_cb           (EmpathyTpContactList            *list,
                                EmpathyContactManager           *manager);
static void           contact_manager_rename_group_foreach (McAccount                       *account,
                                EmpathyTpContactList            *list,
                                ContactManagerRenameGroupData   *data);
static void           contact_manager_get_groups_foreach   (McAccount                       *account,
                                EmpathyTpContactList            *list,
                                GList                          **all_groups);
static void           contact_manager_get_contacts_foreach (McAccount                       *account,
                                EmpathyTpContactList            *list,
                                GList                          **contacts);
static void           contact_manager_status_changed_cb    (MissionControl                  *mc,
                                TelepathyConnectionStatus        status,
                                McPresence                       presence,
                                TelepathyConnectionStatusReason  reason,
                                const gchar                     *unique_name,
                                EmpathyContactManager           *manager);

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

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

    object_class->finalize = contact_manager_finalize;

    g_type_class_add_private (object_class, sizeof (EmpathyContactManagerPriv));
}

static void
contact_manager_iface_init (EmpathyContactListIface *iface)
{
    iface->setup = contact_manager_setup;
    iface->find = contact_manager_find;
    iface->add = contact_manager_add;
    iface->remove = contact_manager_remove;
    iface->get_contacts = contact_manager_get_contacts;
}

static void
empathy_contact_manager_init (EmpathyContactManager *manager)
{
    EmpathyContactManagerPriv *priv;
    GSList                    *accounts, *l;

    priv = GET_PRIV (manager);

    priv->lists = g_hash_table_new_full (gossip_account_hash,
                         gossip_account_equal,
                         (GDestroyNotify) g_object_unref,
                         (GDestroyNotify) g_object_unref);

    priv->mc = gossip_mission_control_new ();

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

    /* Get ContactList for existing connections */
    accounts = mission_control_get_online_connections (priv->mc, NULL);
    for (l = accounts; l; l = l->next) {
        McAccount *account;

        account = l->data;
        contact_manager_add_account (manager, account);
        
        g_object_unref (account);
    }
    g_slist_free (accounts);
}

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

    priv = GET_PRIV (object);

    g_hash_table_destroy (priv->lists);
    g_object_unref (priv->mc);
}

EmpathyContactManager *
empathy_contact_manager_new (void)
{
    static EmpathyContactManager *manager = NULL;

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

    return manager;
}

static void
contact_manager_setup (EmpathyContactList *manager)
{
    EmpathyContactManagerPriv *priv;

    g_return_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager));

    priv = GET_PRIV (manager);

    if (priv->setup) {
        /* Already done */
        return;
    }

    g_hash_table_foreach (priv->lists,
                  (GHFunc) contact_manager_setup_foreach,
                  manager);

    priv->setup = TRUE;
}

static GossipContact *
contact_manager_find (EmpathyContactList *manager,
              const gchar        *id)
{
    EmpathyContactManagerPriv *priv;
    ContactManagerFindData     data;

    g_return_val_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager), NULL);
    g_return_val_if_fail (id != NULL, NULL);

    priv = GET_PRIV (manager);

    data.contact = NULL;
    data.id = id;

    g_hash_table_find (priv->lists,
               (GHRFunc) contact_manager_find_foreach,
               &data);

    return data.contact;
}

static void
contact_manager_add (EmpathyContactList *manager,
             GossipContact      *contact,
             const gchar        *message)
{
    EmpathyContactManagerPriv *priv;
    EmpathyContactList        *list;
    McAccount                 *account;

    g_return_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager));
    g_return_if_fail (GOSSIP_IS_CONTACT (contact));

    priv = GET_PRIV (manager);

    account = gossip_contact_get_account (contact);
    list = g_hash_table_lookup (priv->lists, account);

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

static void
contact_manager_remove (EmpathyContactList *manager,
            GossipContact      *contact,
            const gchar        *message)
{
    EmpathyContactManagerPriv *priv;
    EmpathyContactList        *list;
    McAccount                 *account;

    g_return_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager));
    g_return_if_fail (GOSSIP_IS_CONTACT (contact));

    priv = GET_PRIV (manager);

    account = gossip_contact_get_account (contact);
    list = g_hash_table_lookup (priv->lists, account);

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

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

    g_return_val_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager), NULL);

    priv = GET_PRIV (manager);

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

    return contacts;
}

EmpathyTpContactList *
empathy_contact_manager_get_list (EmpathyContactManager *manager,
                  McAccount             *account)
{
    EmpathyContactManagerPriv *priv;

    g_return_val_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager), NULL);
    g_return_val_if_fail (MC_IS_ACCOUNT (account), NULL);

    priv = GET_PRIV (manager);

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

GossipContact *
empathy_contact_manager_get_user (EmpathyContactManager *manager,
                  McAccount             *account)
{
    EmpathyContactManagerPriv *priv;
    EmpathyTpContactList        *list;

    g_return_val_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager), NULL);
    g_return_val_if_fail (MC_IS_ACCOUNT (account), NULL);

    priv = GET_PRIV (manager);

    list = g_hash_table_lookup (priv->lists, account);
    
    if (!list) {
        return NULL;
    }

    return empathy_tp_contact_list_get_user (list);
}

GossipContact *
empathy_contact_manager_create (EmpathyContactManager *manager,
                McAccount             *account,
                const gchar           *id)
{
    EmpathyContactManagerPriv *priv;
    EmpathyTpContactList      *list;

    g_return_val_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager), NULL);
    g_return_val_if_fail (MC_IS_ACCOUNT (account), NULL);
    g_return_val_if_fail (id != NULL, NULL);

    priv = GET_PRIV (manager);

    list = g_hash_table_lookup (priv->lists, account);
    
    if (!list) {
        return NULL;
    }

    return empathy_tp_contact_list_get_from_id (list, id);
}

void
empathy_contact_manager_rename_group (EmpathyContactManager *manager,
                      const gchar           *old_group,
                      const gchar           *new_group)
{
    EmpathyContactManagerPriv   *priv;
    ContactManagerRenameGroupData  data;

    g_return_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager));
    g_return_if_fail (old_group != NULL);
    g_return_if_fail (new_group != NULL);

    priv = GET_PRIV (manager);

    data.old_group = old_group;
    data.new_group = new_group;

    g_hash_table_foreach (priv->lists,
                  (GHFunc) contact_manager_rename_group_foreach,
                  &data);
}

GList *
empathy_contact_manager_get_groups (EmpathyContactManager *manager)
{
    EmpathyContactManagerPriv *priv;
    GList                     *groups = NULL;

    g_return_val_if_fail (EMPATHY_IS_CONTACT_MANAGER (manager), NULL);

    priv = GET_PRIV (manager);

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

    return groups;
}

static void
contact_manager_setup_foreach (McAccount             *account,
                   EmpathyTpContactList  *list,
                   EmpathyContactManager *manager)
{
    empathy_contact_list_setup (EMPATHY_CONTACT_LIST (list));
}

static gboolean
contact_manager_find_foreach (McAccount              *account,
                  EmpathyTpContactList   *list,
                              ContactManagerFindData *data)
{
    data->contact = empathy_contact_list_find (EMPATHY_CONTACT_LIST (list),
                           data->id);

    if (data->contact) {
        return TRUE;
    }

    return FALSE;
}

static void
contact_manager_add_account (EmpathyContactManager *manager,
                 McAccount             *account)
{
    EmpathyContactManagerPriv *priv;
    EmpathyTpContactList        *list;

    priv = GET_PRIV (manager);

    if (g_hash_table_lookup (priv->lists, account)) {
        return;
    }

    gossip_debug (DEBUG_DOMAIN, "Adding new account: %s",
              mc_account_get_display_name (account));

    list = empathy_tp_contact_list_new (account);
    if (!list) {
        return;
    }

    g_hash_table_insert (priv->lists, g_object_ref (account), list);

    /* Connect signals */
    g_signal_connect (list, "contact-added",
              G_CALLBACK (contact_manager_added_cb),
              manager);
    g_signal_connect (list, "contact-removed",
              G_CALLBACK (contact_manager_removed_cb),
              manager);
    g_signal_connect (list, "destroy",
              G_CALLBACK (contact_manager_destroy_cb),
              manager);

    if (priv->setup) {
        empathy_contact_list_setup (EMPATHY_CONTACT_LIST (list));
    }
}

static void
contact_manager_added_cb (EmpathyTpContactList  *list,
              GossipContact         *contact,
              EmpathyContactManager *manager)
{
    g_signal_emit_by_name (manager, "contact-added", contact);
}

static void
contact_manager_removed_cb (EmpathyTpContactList  *list,
                GossipContact         *contact,
                EmpathyContactManager *manager)
{
    g_signal_emit_by_name (manager, "contact-removed", contact);
}

static void
contact_manager_destroy_cb (EmpathyTpContactList  *list,
                EmpathyContactManager *manager)
{
    EmpathyContactManagerPriv *priv;
    McAccount                 *account;

    priv = GET_PRIV (manager);

    account = empathy_tp_contact_list_get_account (list);

    gossip_debug (DEBUG_DOMAIN, "Removing account: %s",
              mc_account_get_display_name (account));

    /* Disconnect signals from the list */
    g_signal_handlers_disconnect_by_func (list,
                          contact_manager_added_cb,
                          manager);
    g_signal_handlers_disconnect_by_func (list,
                          contact_manager_removed_cb,
                          manager);
    g_signal_handlers_disconnect_by_func (list,
                          contact_manager_destroy_cb,
                          manager);

    g_hash_table_remove (priv->lists, account);
}

static void
contact_manager_rename_group_foreach (McAccount                     *account,
                      EmpathyTpContactList          *list,
                      ContactManagerRenameGroupData *data)
{
    empathy_tp_contact_list_rename_group (list,
                          data->old_group,
                          data->new_group);
}

static void
contact_manager_get_groups_foreach (McAccount             *account,
                    EmpathyTpContactList  *list,
                    GList                **all_groups)
{
    GList *groups, *l;

    groups = empathy_tp_contact_list_get_groups (list);
    for (l = groups; l; l = l->next) {
        if (!g_list_find_custom (*all_groups,
                     l->data,
                     (GCompareFunc) strcmp)) {
            *all_groups = g_list_append (*all_groups,
                             g_strdup (l->data));
        }
        g_free (l->data);
    }

    g_list_free (groups);
}

static void
contact_manager_get_contacts_foreach (McAccount             *account,
                      EmpathyTpContactList  *list,
                      GList                **contacts)
{
    GList *l;

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

static void
contact_manager_status_changed_cb (MissionControl                  *mc,
                   TelepathyConnectionStatus        status,
                   McPresence                       presence,
                   TelepathyConnectionStatusReason  reason,
                   const gchar                     *unique_name,
                   EmpathyContactManager           *manager)
{
    EmpathyContactManagerPriv *priv;
    McAccount                 *account;

    priv = GET_PRIV (manager);

    if (status != TP_CONN_STATUS_CONNECTED) {
        /* We only care about newly connected accounts */
        return;
    }

    account = mc_account_lookup (unique_name);
    contact_manager_add_account (manager, account);

    g_object_unref (account);
}