[empathy] Implement error signal

[Guillaume Desmottes <gdesmott src gnome org>]

commit 740f230888350114708d51067e624b31880cfdb2
Author: Gabriel Millaire <millaire gabriel gmail com>
Date:   Mon May 11 22:15:14 2009 -0400

    Implement error signal
---
 libempathy/empathy-tp-roomlist.c |   21 +++++++++++++++++----
 1 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/libempathy/empathy-tp-roomlist.c b/libempathy/empathy-tp-roomlist.c
index 417a287..104b8a3 100644
--- a/libempathy/empathy-tp-roomlist.c
+++ b/libempathy/empathy-tp-roomlist.c
@@ -48,6 +48,7 @@ typedef struct {
 enum {
 	NEW_ROOM,
 	DESTROY,
+	ERROR,
 	LAST_SIGNAL
 };
 
@@ -239,22 +240,24 @@ tp_roomlist_invalidated_cb (TpChannel         *channel,
 static void
 call_list_rooms_cb (TpChannel *proxy,
 		    const GError *error,
-		    gpointer user_data,
+		    gpointer list,
 		    GObject *weak_object)
 {
 	if (error != NULL) {
 		DEBUG ("Error listing rooms: %s", error->message);
+		g_signal_emit_by_name (list, "error::start", error);
 	}
 }
 
 static void
 stop_listing_cb (TpChannel *proxy,
 		 const GError *error,
-		 gpointer user_data,
+		 gpointer list,
 		 GObject *weak_object)
 {
 	if (error != NULL) {
 		DEBUG ("Error on stop listing: %s", error->message);
+		g_signal_emit_by_name (list, "error::stop", error);
 	}
 }
 
@@ -452,6 +455,16 @@ empathy_tp_roomlist_class_init (EmpathyTpRoomlistClass *klass)
 			      G_TYPE_NONE,
 			      0);
 
+	signals[ERROR] =
+		g_signal_new ("error",
+			      G_TYPE_FROM_CLASS (klass),
+			      G_SIGNAL_RUN_LAST,
+			      0,
+			      NULL, NULL,
+			      g_cclosure_marshal_VOID__POINTER,
+			      G_TYPE_NONE,
+			      1, G_TYPE_POINTER);
+
 	g_type_class_add_private (object_class, sizeof (EmpathyTpRoomlistPriv));
 }
 
@@ -506,7 +519,7 @@ empathy_tp_roomlist_start (EmpathyTpRoomlist *list)
 	g_return_if_fail (EMPATHY_IS_TP_ROOMLIST (list));
 	if (priv->channel != NULL) {
 		tp_cli_channel_type_room_list_call_list_rooms (priv->channel, -1,
-			call_list_rooms_cb, NULL, NULL, NULL);
+			call_list_rooms_cb, list, NULL, NULL);
 	} else {
 		priv->start_requested = TRUE;
 	}
@@ -521,6 +534,6 @@ empathy_tp_roomlist_stop (EmpathyTpRoomlist *list)
 	g_return_if_fail (TP_IS_CHANNEL (priv->channel));
 
 	tp_cli_channel_type_room_list_call_stop_listing (priv->channel, -1,
-							 stop_listing_cb, NULL, NULL, NULL);
+							 stop_listing_cb, list, NULL, NULL);
 }