2 files changed, 5 insertions, 0 deletions
diff --git a/Swiften/Roster/GroupRosterItem.cpp b/Swiften/Roster/GroupRosterItem.cpp
index aa9fdd4..325c890 100644
--- a/Swiften/Roster/GroupRosterItem.cpp
+++ b/Swiften/Roster/GroupRosterItem.cpp
@@ -31,7 +31,11 @@ bool GroupRosterItem::isExpanded() const {
 	to avoid a loop in this case.
  */
 void GroupRosterItem::setExpanded(bool expanded) {
+	bool old = expanded_;
 	expanded_ = expanded;
+	if (expanded != old) {
+		onExpandedChanged(expanded);
+	}
 }
 
 const std::vector<RosterItem*>& GroupRosterItem::getChildren() const {
diff --git a/Swiften/Roster/GroupRosterItem.h b/Swiften/Roster/GroupRosterItem.h
index 67ced97..b306b59 100644
--- a/Swiften/Roster/GroupRosterItem.h
+++ b/Swiften/Roster/GroupRosterItem.h
@@ -29,6 +29,7 @@ class GroupRosterItem : public RosterItem {
 		static bool itemLessThanWithoutStatus(const RosterItem* left, const RosterItem* right);
 		void setExpanded(bool expanded);
 		bool isExpanded() const;
+		boost::signal<void (bool)> onExpandedChanged;
 	private:
 		void handleChildrenChanged(GroupRosterItem* group);
 		void handleDataChanged(RosterItem* item);