4 files changed, 30 insertions, 0 deletions
diff --git a/Swiften/Roster/GroupRosterItem.cpp b/Swiften/Roster/GroupRosterItem.cpp
index e5490e2..8e4be35 100644
--- a/Swiften/Roster/GroupRosterItem.cpp
+++ b/Swiften/Roster/GroupRosterItem.cpp
@@ -55,6 +55,27 @@ void GroupRosterItem::addChild(RosterItem* item) {
 }
 
 /**
+ * Does not emit a changed signal.
+ */
+void GroupRosterItem::removeAll() {
+	std::vector<RosterItem*>::iterator it = children_.begin();
+	displayedChildren_.clear();
+	while (it != children_.end()) {
+		ContactRosterItem* contact = dynamic_cast<ContactRosterItem*>(*it);
+		if (contact) {
+			delete contact;
+		} 
+		GroupRosterItem* group = dynamic_cast<GroupRosterItem*>(*it);
+		if (group) {
+			group->removeAll();
+			delete group;
+		}
+		it++;
+	}
+	children_.clear();
+}
+
+/**
  * Returns the removed item - but only if it's the only one, otherwise
  * the return result is undefined.
  */
diff --git a/Swiften/Roster/GroupRosterItem.h b/Swiften/Roster/GroupRosterItem.h
index aca2b05..096d053 100644
--- a/Swiften/Roster/GroupRosterItem.h
+++ b/Swiften/Roster/GroupRosterItem.h
@@ -22,6 +22,7 @@ class GroupRosterItem : public RosterItem {
 		const std::vector<RosterItem*>& getDisplayedChildren() const;
 		void addChild(RosterItem* item);
 		ContactRosterItem* removeChild(const JID& jid);
+		void removeAll();
 		void setDisplayed(RosterItem* item, bool displayed);
 		boost::signal<void ()> onChildrenChanged;
 		static bool itemLessThan(const RosterItem* left, const RosterItem* right);
diff --git a/Swiften/Roster/Roster.cpp b/Swiften/Roster/Roster.cpp
index b7ed6c4..e91b843 100644
--- a/Swiften/Roster/Roster.cpp
+++ b/Swiften/Roster/Roster.cpp
@@ -82,6 +82,13 @@ struct JIDEqualsTo {
 	JID jid;
 };
 
+void Roster::removeAll() {
+	root_->removeAll();
+	itemMap_.clear();
+	onChildrenChanged(root_);
+	onDataChanged(root_);
+}
+
 void Roster::removeContact(const JID& jid) {
 	std::vector<ContactRosterItem*>* items = &itemMap_[fullJIDMapping_ ? jid : jid.toBare()];
 	items->erase(std::remove_if(items->begin(), items->end(), JIDEqualsTo(jid)), items->end());
diff --git a/Swiften/Roster/Roster.h b/Swiften/Roster/Roster.h
index 346157e..d54a12e 100644
--- a/Swiften/Roster/Roster.h
+++ b/Swiften/Roster/Roster.h
@@ -31,6 +31,7 @@ class Roster {
 		void addContact(const JID& jid, const JID& displayJID, const String& name, const String& group);
 		void removeContact(const JID& jid);
 		void removeContactFromGroup(const JID& jid, const String& group);
+		void removeAll();
 		void applyOnItems(const RosterItemOperation& operation);
 		void applyOnAllItems(const RosterItemOperation& operation);
 		void applyOnItem(const RosterItemOperation& operation, const JID& jid);