1 files changed, 20 insertions, 18 deletions
diff --git a/Swiften/Presence/DirectedPresenceSender.h b/Swiften/Presence/DirectedPresenceSender.h
index 0eb16a4..a397776 100644
--- a/Swiften/Presence/DirectedPresenceSender.h
+++ b/Swiften/Presence/DirectedPresenceSender.h
@@ -1,35 +1,37 @@
 /*
- * Copyright (c) 2010 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
+ * Copyright (c) 2010-2016 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
  */
 
 #pragma once
 
 #include <set>
 
+#include <boost/optional.hpp>
+
+#include <Swiften/Base/API.h>
 #include <Swiften/Elements/Presence.h>
 #include <Swiften/Presence/PresenceSender.h>
-#include <Swiften/Base/API.h>
 
 namespace Swift {
-	class SWIFTEN_API DirectedPresenceSender : public PresenceSender {
-		public:
-			enum SendPresence {AndSendPresence, DontSendPresence};
-			DirectedPresenceSender(PresenceSender*);
+    class SWIFTEN_API DirectedPresenceSender : public PresenceSender {
+        public:
+            enum SendPresence {AndSendPresence, DontSendPresence};
+            DirectedPresenceSender(PresenceSender*);
 
-			void addDirectedPresenceReceiver(const JID&, SendPresence);
-			void removeDirectedPresenceReceiver(const JID&, SendPresence);
+            void addDirectedPresenceReceiver(const JID&, SendPresence);
+            void removeDirectedPresenceReceiver(const JID&, SendPresence);
 
-			void sendPresence(Presence::ref);
+            void sendPresence(Presence::ref);
 
-			Presence::ref getLastSentUndirectedPresence();
+            boost::optional<Presence::ref> getLastSentUndirectedPresence() const;
 
-			bool isAvailable() const;
+            bool isAvailable() const;
 
-		private:
-			Presence::ref lastSentUndirectedPresence;
-			PresenceSender* sender;
-			std::set<JID> directedPresenceReceivers;
-	};
+        private:
+            boost::optional<Presence::ref> lastSentUndirectedPresence;
+            PresenceSender* sender;
+            std::set<JID> directedPresenceReceivers;
+    };
 }