+
+void
+modest_header_view_add_observer(ModestHeaderView *header_view,
+ ModestHeaderViewObserver *observer)
+{
+ ModestHeaderViewPrivate *priv;
+
+ g_return_if_fail (header_view && MODEST_IS_HEADER_VIEW(header_view));
+ g_return_if_fail (observer && MODEST_IS_HEADER_VIEW_OBSERVER(observer));
+
+ priv = MODEST_HEADER_VIEW_GET_PRIVATE(header_view);
+
+ g_mutex_lock(priv->observer_list_lock);
+ priv->observer_list = g_slist_prepend(priv->observer_list, observer);
+ g_mutex_unlock(priv->observer_list_lock);
+}
+
+void
+modest_header_view_remove_observer(ModestHeaderView *header_view,
+ ModestHeaderViewObserver *observer)
+{
+ ModestHeaderViewPrivate *priv;
+
+ g_return_if_fail (header_view && MODEST_IS_HEADER_VIEW(header_view));
+ g_return_if_fail (observer && MODEST_IS_HEADER_VIEW_OBSERVER(observer));
+
+ priv = MODEST_HEADER_VIEW_GET_PRIVATE(header_view);
+
+ g_mutex_lock(priv->observer_list_lock);
+ priv->observer_list = g_slist_remove(priv->observer_list, observer);
+ g_mutex_unlock(priv->observer_list_lock);
+}
+
+static void
+modest_header_view_notify_observers(ModestHeaderView *header_view,
+ GtkTreeModel *model,
+ const gchar *tny_folder_id)
+{
+ ModestHeaderViewPrivate *priv = NULL;
+ GSList *iter;
+ ModestHeaderViewObserver *observer;
+
+
+ g_return_if_fail (header_view && MODEST_IS_HEADER_VIEW(header_view));
+
+ priv = MODEST_HEADER_VIEW_GET_PRIVATE(header_view);
+
+ g_mutex_lock(priv->observer_list_lock);
+ iter = priv->observer_list;
+ while(iter != NULL){
+ observer = MODEST_HEADER_VIEW_OBSERVER(iter->data);
+ modest_header_view_observer_update(observer, model,
+ tny_folder_id);
+ iter = g_slist_next(iter);
+ }
+ g_mutex_unlock(priv->observer_list_lock);
+}
+