[empathy] Disconnect from notify::location

[Pierre-Luc Beaudoin <plbeaudoin src gnome org>]

commit d4d2036320d77e9f079b7dc13921e027c93a4e98
Author: Pierre-Luc Beaudoin <pierre-luc pierlux com>
Date:   Tue May 26 18:12:09 2009 -0400

    Disconnect from notify::location
    
    Since the list of EmpathyContact can change at anytime, it can't
    be iterated to disconnect the handlers.  Instead, a ref is
    added to the markers.
---
 src/empathy-map-view.c |   21 +++++++++++++++++++--
 1 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/empathy-map-view.c b/src/empathy-map-view.c
index 4173128..83ad392 100644
--- a/src/empathy-map-view.c
+++ b/src/empathy-map-view.c
@@ -55,6 +55,7 @@ typedef struct {
   GtkWidget *zoom_out;
   ChamplainView *map_view;
   ChamplainLayer *layer;
+  GSList *notify_handles;
 } EmpathyMapView;
 
 static void map_view_destroy_cb (GtkWidget *widget,
@@ -148,7 +149,21 @@ static void
 map_view_destroy_cb (GtkWidget *widget,
     EmpathyMapView *window)
 {
-  GtkTreeModel *model;
+  GSList *item;
+
+  item = window->notify_handles;
+  while (item != NULL)
+  {
+    EmpathyContact *contact;
+    ChamplainMarker *marker;
+
+    marker = CHAMPLAIN_MARKER (item->data);
+    contact = g_object_get_data (G_OBJECT (marker), "contact");
+    g_signal_handlers_disconnect_by_func (contact, map_view_contact_location_notify, marker);
+    g_object_unref (marker);
+
+    item = g_slist_next (item);
+  }
 
   g_object_unref (window->list_store);
   g_object_unref (window->layer);
@@ -374,7 +389,9 @@ map_view_contacts_foreach (GtkTreeModel *model,
 
   g_signal_connect (contact, "notify::location",
       G_CALLBACK (map_view_contact_location_notify), marker);
-
+  g_object_set_data_full (G_OBJECT (marker), "contact", g_object_ref (contact), g_object_unref);
+  window->notify_handles = g_slist_append (window->notify_handles,
+      g_object_ref (marker));
 
   map_view_marker_update_position (CHAMPLAIN_MARKER (marker), contact);