2 files changed, 15 insertions, 1 deletions
diff --git a/indra/newview/llchiclet.cpp b/indra/newview/llchiclet.cpp
index 8d627dc4c2..6b9e616e47 100644
--- a/indra/newview/llchiclet.cpp
+++ b/indra/newview/llchiclet.cpp
@@ -135,6 +135,13 @@ LLIMWellChiclet::LLIMWellChiclet(const Params& p)
 {
 	LLIMModel::instance().addNewMsgCallback(boost::bind(&LLIMWellChiclet::messageCountChanged, this, _1));
 	LLIMModel::instance().addNoUnreadMsgsCallback(boost::bind(&LLIMWellChiclet::messageCountChanged, this, _1));
+
+	LLIMMgr::getInstance()->addSessionObserver(this);
+}
+
+LLIMWellChiclet::~LLIMWellChiclet()
+{
+	LLIMMgr::getInstance()->removeSessionObserver(this);
 }
 
 void LLIMWellChiclet::messageCountChanged(const LLSD& session_data)
diff --git a/indra/newview/llchiclet.h b/indra/newview/llchiclet.h
index 8727e97aad..609ce16713 100644
--- a/indra/newview/llchiclet.h
+++ b/indra/newview/llchiclet.h
@@ -39,6 +39,7 @@
 #include "lltextbox.h"
 #include "lloutputmonitorctrl.h"
 #include "llgroupmgr.h"
+#include "llimview.h"
 
 class LLVoiceControlPanel;
 class LLMenuGL;
@@ -787,9 +788,15 @@ protected:
  *
  * It displays a count of unread messages from other participants in all IM sessions.
  */
-class LLIMWellChiclet : public LLSysWellChiclet
+class LLIMWellChiclet : public LLSysWellChiclet, LLIMSessionObserver
 {
 	friend class LLUICtrlFactory;
+public:
+	virtual void sessionAdded(const LLUUID& session_id, const std::string& name, const LLUUID& other_participant_id) {}
+	virtual void sessionRemoved(const LLUUID& session_id) { messageCountChanged(LLSD()); }
+	virtual void sessionIDUpdated(const LLUUID& old_session_id, const LLUUID& new_session_id) {}
+
+	~LLIMWellChiclet();
 protected:
 	LLIMWellChiclet(const Params& p);