/* -*- 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 */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "empathy-filter.h" #include "empathy-chat-window.h" #include "empathy-call-window.h" #define DEBUG_FLAG EMPATHY_DEBUG_FILTER #include #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyFilter) typedef struct { GSList *events; GHashTable *accounts; gpointer token; MissionControl *mc; GHashTable *tubes; } EmpathyFilterPriv; G_DEFINE_TYPE (EmpathyFilter, empathy_filter, G_TYPE_OBJECT); enum { PROP_0, PROP_TOP_EVENT, }; typedef void (*FilterFunc) (EmpathyFilter *filter, gpointer user_data); typedef struct { EmpathyFilterEvent public; FilterFunc func; gpointer user_data; } EmpathyFilterEventExt; static guint filter_channel_hash (gconstpointer key) { TpProxy *channel = TP_PROXY (key); return g_str_hash (channel->object_path); } static gboolean filter_channel_equal (gconstpointer a, gconstpointer b) { TpProxy *channel_a = TP_PROXY (a); TpProxy *channel_b = TP_PROXY (b); return g_str_equal (channel_a->object_path, channel_b->object_path); } static void filter_event_free (EmpathyFilterEventExt *event) { g_free (event->public.icon_name); g_free (event->public.message); g_slice_free (EmpathyFilterEventExt, event); } static void filter_emit_event (EmpathyFilter *filter, const gchar *icon_name, const gchar *message, FilterFunc func, gpointer user_data) { EmpathyFilterPriv *priv = GET_PRIV (filter); EmpathyFilterEventExt *event; DEBUG ("Emit event, icon_name=%s message='%s'", icon_name, message); event = g_slice_new0 (EmpathyFilterEventExt); event->func = func; event->user_data = user_data; event->public.icon_name = g_strdup (icon_name); event->public.message = g_strdup (message); priv->events = g_slist_append (priv->events, event); if (priv->events->data == event) { g_object_notify (G_OBJECT (filter), "top-event"); } } void empathy_filter_activate_event (EmpathyFilter *filter, EmpathyFilterEvent *event) { EmpathyFilterPriv *priv = GET_PRIV (filter); EmpathyFilterEventExt *event_ext; GSList *l; gboolean is_top; g_return_if_fail (EMPATHY_IS_FILTER (filter)); g_return_if_fail (event != NULL); if (!(l = g_slist_find (priv->events, event))) { return; } DEBUG ("Activating event"); is_top = (l == priv->events); priv->events = g_slist_delete_link (priv->events, l); if (is_top) { g_object_notify (G_OBJECT (filter), "top-event"); } event_ext = (EmpathyFilterEventExt*) event; if (event_ext->func) { event_ext->func (filter, event_ext->user_data); } filter_event_free (event_ext); } EmpathyFilterEvent * empathy_filter_get_top_event (EmpathyFilter *filter) { EmpathyFilterPriv *priv = GET_PRIV (filter); g_return_val_if_fail (EMPATHY_IS_FILTER (filter), NULL); return priv->events ? priv->events->data : NULL; } static void filter_chat_dispatch (EmpathyFilter *filter, gpointer user_data) { EmpathyTpChat *tp_chat = EMPATHY_TP_CHAT (user_data); EmpathyChat *chat = NULL; const gchar *id; id = empathy_tp_chat_get_id (tp_chat); if (!id) { EmpathyContact *contact; contact = empathy_tp_chat_get_remote_contact (tp_chat); if (contact) { id = empathy_contact_get_id (contact); } } if (id) { McAccount *account; account = empathy_tp_chat_get_account (tp_chat); chat = empathy_chat_window_find_chat (account, id); } if (chat) { empathy_chat_set_tp_chat (chat, tp_chat); } else { chat = empathy_chat_new (tp_chat); } empathy_chat_window_present_chat (chat); g_object_unref (tp_chat); } static void filter_chat_message_received_cb (EmpathyTpChat *tp_chat, EmpathyMessage *message, EmpathyFilter *filter) { EmpathyContact *sender; gchar *msg; g_signal_handlers_disconnect_by_func (tp_chat, filter_chat_message_received_cb, filter); sender = empathy_message_get_sender (message); msg = g_strdup_printf (_("New message from %s:\n%s"), empathy_contact_get_name (sender), empathy_message_get_body (message)); filter_emit_event (filter, EMPATHY_IMAGE_NEW_MESSAGE, msg, filter_chat_dispatch, tp_chat); g_free (msg); } static void filter_chat_handle_channel (EmpathyFilter *filter, TpChannel *channel, gboolean is_incoming) { EmpathyTpChat *tp_chat; DEBUG ("New text channel to be filtered: %p", channel); tp_chat = empathy_tp_chat_new (channel, FALSE); empathy_run_until_ready (tp_chat); if (is_incoming) { filter_chat_dispatch (filter, tp_chat); } else { g_signal_connect (tp_chat, "message-received", G_CALLBACK (filter_chat_message_received_cb), filter); } } static void filter_call_dispatch (EmpathyFilter *filter, gpointer user_data) { EmpathyTpCall *call = EMPATHY_TP_CALL (user_data); empathy_call_window_new (call); g_object_unref (call); } static void filter_call_contact_notify_cb (EmpathyTpCall *call, gpointer unused, EmpathyFilter *filter) { EmpathyContact *contact; gchar *msg; g_object_get (call, "contact", &contact, NULL); if (!contact) { return; } empathy_contact_run_until_ready (contact, EMPATHY_CONTACT_READY_NAME, NULL); msg = g_strdup_printf (_("Incoming call from %s"), empathy_contact_get_name (contact)); filter_emit_event (filter, EMPATHY_IMAGE_VOIP, msg, filter_call_dispatch, call); g_free (msg); g_object_unref (contact); } static void filter_call_handle_channel (EmpathyFilter *filter, TpChannel *channel, gboolean is_incoming) { EmpathyTpCall *call; DEBUG ("New media channel to be filtered: %p", channel); call = empathy_tp_call_new (channel); if (is_incoming) { filter_call_dispatch (filter, call); } else { g_signal_connect (call, "notify::contact", G_CALLBACK (filter_call_contact_notify_cb), filter); } } static void filter_contact_list_subscribe (EmpathyFilter *filter, gpointer user_data) { EmpathyContact *contact = EMPATHY_CONTACT (user_data); empathy_subscription_dialog_show (contact, NULL); g_object_unref (contact); } static void filter_contact_list_local_pending_cb (EmpathyTpGroup *group, EmpathyContact *contact, EmpathyContact *actor, guint reason, gchar *message, EmpathyFilter *filter) { GString *str; DEBUG ("New local pending contact"); empathy_contact_run_until_ready (contact, EMPATHY_CONTACT_READY_NAME, NULL); str = g_string_new (NULL); g_string_printf (str, _("Subscription requested by %s"), empathy_contact_get_name (contact)); if (!G_STR_EMPTY (message)) { g_string_append_printf (str, _("\nMessage: %s"), message); } filter_emit_event (filter, GTK_STOCK_DIALOG_QUESTION, str->str, filter_contact_list_subscribe, g_object_ref (contact)); g_string_free (str, TRUE); } static void filter_contact_list_ready_cb (EmpathyTpGroup *group, gpointer unused, EmpathyFilter *filter) { GList *pendings, *l; if (tp_strdiff ("publish", empathy_tp_group_get_name (group))) { g_object_unref (group); return; } DEBUG ("Publish contact list ready"); g_signal_connect (group, "local-pending", G_CALLBACK (filter_contact_list_local_pending_cb), filter); pendings = empathy_tp_group_get_local_pendings (group); for (l = pendings; l; l = l->next) { EmpathyPendingInfo *info = l->data; filter_contact_list_local_pending_cb (group, info->member, info->actor, info->reason, info->message, filter); empathy_pending_info_free (info); } g_list_free (pendings); } static void filter_tubes_async_cb (TpProxy *channel, const GError *error, gpointer user_data, GObject *filter) { if (error) { DEBUG ("Error %s: %s", (gchar*) user_data, error->message); } } typedef struct { EmpathyContactFactory *factory; EmpathyContact *initiator; TpChannel *channel; guint id; gchar *bus_name; gchar *object_path; gboolean activatable; } FilterTubesData; static void filter_tubes_dispatch (EmpathyFilter *filter, gpointer user_data) { FilterTubesData *data = user_data; if (data->activatable) { TpProxy *connection; TpProxy *thandler; gchar *object_path; guint handle_type; guint handle; /* Create the proxy for the tube handler */ thandler = g_object_new (TP_TYPE_PROXY, "dbus-connection", tp_get_bus (), "bus-name", data->bus_name, "object-path", data->object_path, NULL); tp_proxy_add_interface_by_id (thandler, EMP_IFACE_QUARK_TUBE_HANDLER); /* Give the tube to the handler */ g_object_get (data->channel, "connection", &connection, "object-path", &object_path, "handle_type", &handle_type, "handle", &handle, NULL); DEBUG ("Dispatching tube"); emp_cli_tube_handler_call_handle_tube (thandler, -1, connection->bus_name, connection->object_path, object_path, handle_type, handle, data->id, filter_tubes_async_cb, "handling tube", NULL, G_OBJECT (filter)); g_object_unref (thandler); g_object_unref (connection); g_free (object_path); } else { GtkWidget *dialog; gchar *str; /* Tell the user that the tube can't be handled */ str = g_strdup_printf (_("%s offered you an invitation, but " "you don't have the needed external " "application to handle it."), empathy_contact_get_name (data->initiator)); dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, str); gtk_window_set_title (GTK_WINDOW (dialog), _("Invitation Error")); g_free (str); gtk_widget_show (dialog); g_signal_connect (dialog, "response", G_CALLBACK (gtk_widget_destroy), NULL); DEBUG ("Tube can't be handled, closing"); tp_cli_channel_type_tubes_call_close_tube (data->channel, -1, data->id, NULL, NULL, NULL, NULL); } g_free (data->bus_name); g_free (data->object_path); g_object_unref (data->channel); g_object_unref (data->initiator); g_object_unref (data->factory); g_slice_free (FilterTubesData, data); } static void filter_tubes_new_tube_cb (TpChannel *channel, guint id, guint initiator, guint type, const gchar *service, GHashTable *parameters, guint state, gpointer user_data, GObject *filter) { EmpathyFilterPriv *priv = GET_PRIV (filter); static TpDBusDaemon *daemon = NULL; FilterTubesData *data; McAccount *account; guint number; gchar *msg; gchar **names; gboolean running = FALSE; const gchar *icon_name; GError *error = NULL; /* Increase tube count */ number = GPOINTER_TO_UINT (g_hash_table_lookup (priv->tubes, channel)); g_hash_table_replace (priv->tubes, g_object_ref (channel), GUINT_TO_POINTER (++number)); DEBUG ("Increased tube count for channel %p: %d", channel, number); /* We dispatch only local pending tubes */ if (state != TP_TUBE_STATE_LOCAL_PENDING) { return; } if (!daemon) { daemon = tp_dbus_daemon_new (tp_get_bus ()); } account = empathy_channel_get_account (channel); data = g_slice_new (FilterTubesData); data->activatable = FALSE; data->id = id; data->channel = g_object_ref (channel); data->factory = empathy_contact_factory_new (); data->initiator = empathy_contact_factory_get_from_handle (data->factory, account, initiator); data->bus_name = empathy_tube_handler_build_bus_name (type, service); data->object_path = empathy_tube_handler_build_object_path (type, service); g_object_unref (account); /* Check if that bus-name has an owner, if it has one that means the * app is already running and we can directly give the channel. */ tp_cli_dbus_daemon_run_name_has_owner (daemon, -1, data->bus_name, &running, NULL, NULL); if (running) { DEBUG ("Tube handler running"); data->activatable = TRUE; filter_tubes_dispatch (EMPATHY_FILTER (filter), data); return; } /* Check if that bus-name is activatable, if not that means the * application needed to handle this tube isn't installed. */ if (!tp_cli_dbus_daemon_run_list_activatable_names (daemon, -1, &names, &error, NULL)) { DEBUG ("Error listing activatable names: %s", error->message); g_clear_error (&error); } else { gchar **name; for (name = names; *name; name++) { if (!tp_strdiff (*name, data->bus_name)) { data->activatable = TRUE; break; } } g_strfreev (names); } empathy_contact_run_until_ready (data->initiator, EMPATHY_CONTACT_READY_NAME, NULL); if (data->activatable) { icon_name = GTK_STOCK_EXECUTE; msg = g_strdup_printf (_("%s is offering you an invitation. An external " "application will be started to handle it."), empathy_contact_get_name (data->initiator)); } else { icon_name = GTK_STOCK_DIALOG_ERROR; msg = g_strdup_printf (_("%s is offering you an invitation, but " "you don't have the needed external " "application to handle it."), empathy_contact_get_name (data->initiator)); } filter_emit_event (EMPATHY_FILTER (filter), icon_name, msg, filter_tubes_dispatch, data); g_free (msg); } static void filter_tubes_list_tubes_cb (TpChannel *channel, const GPtrArray *tubes, const GError *error, gpointer user_data, GObject *filter) { guint i; if (error) { DEBUG ("Error listing tubes: %s", error->message); return; } for (i = 0; i < tubes->len; i++) { GValueArray *values; values = g_ptr_array_index (tubes, i); filter_tubes_new_tube_cb (channel, g_value_get_uint (g_value_array_get_nth (values, 0)), g_value_get_uint (g_value_array_get_nth (values, 1)), g_value_get_uint (g_value_array_get_nth (values, 2)), g_value_get_string (g_value_array_get_nth (values, 3)), g_value_get_boxed (g_value_array_get_nth (values, 4)), g_value_get_uint (g_value_array_get_nth (values, 5)), user_data, filter); } } static void filter_tubes_channel_invalidated_cb (TpProxy *proxy, guint domain, gint code, gchar *message, EmpathyFilter *filter) { EmpathyFilterPriv *priv = GET_PRIV (filter); DEBUG ("Channel %p invalidated: %s", proxy, message); g_hash_table_remove (priv->tubes, proxy); } static void filter_tubes_tube_closed_cb (TpChannel *channel, guint id, gpointer user_data, GObject *filter) { EmpathyFilterPriv *priv = GET_PRIV (filter); guint number; number = GPOINTER_TO_UINT (g_hash_table_lookup (priv->tubes, channel)); if (number == 1) { DEBUG ("Ended tube count for channel %p, closing channel", channel); tp_cli_channel_call_close (channel, -1, NULL, NULL, NULL, NULL); } else if (number > 1) { DEBUG ("Decrease tube count for channel %p: %d", channel, number); g_hash_table_replace (priv->tubes, g_object_ref (channel), GUINT_TO_POINTER (--number)); } } static void filter_tubes_handle_channel (EmpathyFilter *filter, TpChannel *channel, gboolean is_incoming) { EmpathyFilterPriv *priv = GET_PRIV (filter); if (g_hash_table_lookup (priv->tubes, channel)) { return; } DEBUG ("Handling new channel"); g_hash_table_insert (priv->tubes, g_object_ref (channel), GUINT_TO_POINTER (0)); g_signal_connect (channel, "invalidated", G_CALLBACK (filter_tubes_channel_invalidated_cb), filter); tp_cli_channel_type_tubes_connect_to_tube_closed (channel, filter_tubes_tube_closed_cb, NULL, NULL, G_OBJECT (filter), NULL); tp_cli_channel_type_tubes_connect_to_new_tube (channel, filter_tubes_new_tube_cb, NULL, NULL, G_OBJECT (filter), NULL); tp_cli_channel_type_tubes_call_list_tubes (channel, -1, filter_tubes_list_tubes_cb, NULL, NULL, G_OBJECT (filter)); } static void filter_contact_list_destroy_cb (EmpathyTpGroup *group, EmpathyFilter *filter) { g_object_unref (group); } static void filter_contact_list_handle_channel (EmpathyFilter *filter, TpChannel *channel, gboolean is_incoming) { EmpathyTpGroup *group; group = empathy_tp_group_new (channel); g_signal_connect (group, "notify::ready", G_CALLBACK (filter_contact_list_ready_cb), filter); g_signal_connect (group, "destroy", G_CALLBACK (filter_contact_list_destroy_cb), filter); } static void filter_connection_invalidated_cb (TpConnection *connection, guint domain, gint code, gchar *message, EmpathyFilter *filter) { EmpathyFilterPriv *priv = GET_PRIV (filter); GHashTableIter iter; gpointer key, value; DEBUG ("connection invalidated: %s", message); g_hash_table_iter_init (&iter, priv->accounts); while (g_hash_table_iter_next (&iter, &key, &value)) { if (value == connection) { g_hash_table_remove (priv->accounts, key); break; } } } typedef void (*HandleChannelFunc) (EmpathyFilter *filter, TpChannel *channel, gboolean is_incoming); static void filter_conection_new_channel_cb (TpConnection *connection, const gchar *object_path, const gchar *channel_type, guint handle_type, guint handle, gboolean suppress_handler, gpointer user_data, GObject *filter) { HandleChannelFunc func = NULL; TpChannel *channel; gpointer had_channels; had_channels = g_object_get_data (G_OBJECT (connection), "had-channels"); if (had_channels == NULL) { return; } if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_TEXT)) { func = filter_chat_handle_channel; } else if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA)) { func = filter_call_handle_channel; } else if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_CONTACT_LIST)) { func = filter_contact_list_handle_channel; } else if (!tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_TUBES)) { func = filter_tubes_handle_channel; } else { DEBUG ("Unknown channel type %s", channel_type); return; } channel = tp_channel_new (connection, object_path, channel_type, handle_type, handle, NULL); tp_channel_run_until_ready (channel, NULL, NULL); /* We abuse of suppress_handler, TRUE means OUTGOING */ func (EMPATHY_FILTER (filter), channel, suppress_handler); g_object_unref (channel); } static void filter_connection_list_channels_cb (TpConnection *connection, const GPtrArray *channels, const GError *error, gpointer user_data, GObject *filter) { guint i; if (error) { DEBUG ("Error listing channels: %s", error->message); return; } g_object_set_data (G_OBJECT (connection), "had-channels", GUINT_TO_POINTER (1)); for (i = 0; i < channels->len; i++) { GValueArray *values; values = g_ptr_array_index (channels, i); filter_conection_new_channel_cb (connection, g_value_get_boxed (g_value_array_get_nth (values, 0)), g_value_get_string (g_value_array_get_nth (values, 1)), g_value_get_uint (g_value_array_get_nth (values, 2)), g_value_get_uint (g_value_array_get_nth (values, 3)), TRUE, user_data, filter); } } static void filter_connection_advertise_capabilities_cb (TpConnection *connection, const GPtrArray *capabilities, const GError *error, gpointer user_data, GObject *filter) { if (error) { DEBUG ("Error advertising capabilities: %s", error->message); } } static void filter_connection_ready_cb (TpConnection *connection, gpointer unused, EmpathyFilter *filter) { GPtrArray *capabilities; GType cap_type; GValue cap = {0, }; const gchar *remove = NULL; DEBUG ("Connection ready, accepting new channels"); tp_cli_connection_connect_to_new_channel (connection, filter_conection_new_channel_cb, NULL, NULL, G_OBJECT (filter), NULL); tp_cli_connection_call_list_channels (connection, -1, filter_connection_list_channels_cb, NULL, NULL, G_OBJECT (filter)); /* Advertise VoIP capabilities */ capabilities = g_ptr_array_sized_new (1); cap_type = dbus_g_type_get_struct ("GValueArray", G_TYPE_STRING, G_TYPE_UINT, G_TYPE_INVALID); g_value_init (&cap, cap_type); g_value_take_boxed (&cap, dbus_g_type_specialized_construct (cap_type)); dbus_g_type_struct_set (&cap, 0, TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA, 1, TP_CHANNEL_MEDIA_CAPABILITY_AUDIO | TP_CHANNEL_MEDIA_CAPABILITY_VIDEO | TP_CHANNEL_MEDIA_CAPABILITY_NAT_TRAVERSAL_STUN | TP_CHANNEL_MEDIA_CAPABILITY_NAT_TRAVERSAL_GTALK_P2P, G_MAXUINT); g_ptr_array_add (capabilities, g_value_get_boxed (&cap)); tp_cli_connection_interface_capabilities_call_advertise_capabilities ( connection, -1, capabilities, &remove, filter_connection_advertise_capabilities_cb, NULL, NULL, G_OBJECT (filter)); } static void filter_update_account (EmpathyFilter *filter, McAccount *account) { EmpathyFilterPriv *priv = GET_PRIV (filter); TpConnection *connection; gboolean ready; connection = g_hash_table_lookup (priv->accounts, account); if (connection) { return; } connection = mission_control_get_tpconnection (priv->mc, account, NULL); if (!connection) { return; } g_hash_table_insert (priv->accounts, g_object_ref (account), connection); g_signal_connect (connection, "invalidated", G_CALLBACK (filter_connection_invalidated_cb), filter); g_object_get (connection, "connection-ready", &ready, NULL); if (ready) { filter_connection_ready_cb (connection, NULL, filter); } else { g_signal_connect (connection, "notify::connection-ready", G_CALLBACK (filter_connection_ready_cb), filter); } } static void filter_status_changed_cb (MissionControl *mc, TpConnectionStatus status, McPresence presence, TpConnectionStatusReason reason, const gchar *unique_name, EmpathyFilter *filter) { McAccount *account; account = mc_account_lookup (unique_name); filter_update_account (filter, account); g_object_unref (account); } static void filter_finalize (GObject *object) { EmpathyFilterPriv *priv = GET_PRIV (object); empathy_disconnect_account_status_changed (priv->token); g_object_unref (priv->mc); g_slist_foreach (priv->events, (GFunc) filter_event_free, NULL); g_slist_free (priv->events); g_hash_table_destroy (priv->accounts); g_hash_table_destroy (priv->tubes); } static void filter_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec) { EmpathyFilterPriv *priv = GET_PRIV (object); switch (param_id) { case PROP_TOP_EVENT: g_value_set_pointer (value, priv->events ? priv->events->data : NULL); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; }; } static void empathy_filter_class_init (EmpathyFilterClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); object_class->finalize = filter_finalize; object_class->get_property = filter_get_property; g_object_class_install_property (object_class, PROP_TOP_EVENT, g_param_spec_pointer ("top-event", "The top event", "The first event in the events list", G_PARAM_READABLE)); g_type_class_add_private (object_class, sizeof (EmpathyFilterPriv)); } static void empathy_filter_init (EmpathyFilter *filter) { GList *accounts, *l; EmpathyFilterPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (filter, EMPATHY_TYPE_FILTER, EmpathyFilterPriv); filter->priv = priv; priv->tubes = g_hash_table_new_full (filter_channel_hash, filter_channel_equal, g_object_unref, NULL); priv->mc = empathy_mission_control_new (); priv->token = empathy_connect_to_account_status_changed (priv->mc, G_CALLBACK (filter_status_changed_cb), filter, NULL); priv->accounts = g_hash_table_new_full (empathy_account_hash, empathy_account_equal, g_object_unref, g_object_unref); accounts = mc_accounts_list_by_enabled (TRUE); for (l = accounts; l; l = l->next) { filter_update_account (filter, l->data); g_object_unref (l->data); } g_list_free (accounts); } EmpathyFilter * empathy_filter_new (void) { static EmpathyFilter *filter = NULL; if (!filter) { filter = g_object_new (EMPATHY_TYPE_FILTER, NULL); g_object_add_weak_pointer (G_OBJECT (filter), (gpointer) &filter); } else { g_object_ref (filter); } return filter; }