2 files changed, 14 insertions, 1 deletions
diff --git a/indra/newview/llpanelimcontrolpanel.cpp b/indra/newview/llpanelimcontrolpanel.cpp
index 40319d949d..ed651790f0 100644
--- a/indra/newview/llpanelimcontrolpanel.cpp
+++ b/indra/newview/llpanelimcontrolpanel.cpp
@@ -120,6 +120,7 @@ LLPanelIMControlPanel::LLPanelIMControlPanel()
 
 LLPanelIMControlPanel::~LLPanelIMControlPanel()
 {
+	LLAvatarTracker::instance().removeParticularFriendObserver(mAvatarID, this);
 }
 
 BOOL LLPanelIMControlPanel::postBuild()
@@ -175,7 +176,9 @@ void LLPanelIMControlPanel::setSessionId(const LLUUID& session_id)
 
 	LLIMModel& im_model = LLIMModel::instance();
 
+	LLAvatarTracker::instance().removeParticularFriendObserver(mAvatarID, this);
 	mAvatarID = im_model.getOtherParticipantID(session_id);
+	LLAvatarTracker::instance().addParticularFriendObserver(mAvatarID, this);
 
 	// Disable "Add friend" button for friends.
 	childSetEnabled("add_friend_btn", !LLAvatarActions::isFriend(mAvatarID));
@@ -204,6 +207,12 @@ void LLPanelIMControlPanel::setSessionId(const LLUUID& session_id)
 	}
 }
 
+//virtual
+void LLPanelIMControlPanel::changed(U32 mask)
+{
+	childSetEnabled("add_friend_btn", !LLAvatarActions::isFriend(mAvatarID));
+}
+
 void LLPanelIMControlPanel::nameUpdatedCallback(const LLUUID& id, const std::string& first, const std::string& last, BOOL is_group)
 {
 	if ( id == mAvatarID )
diff --git a/indra/newview/llpanelimcontrolpanel.h b/indra/newview/llpanelimcontrolpanel.h
index 7bfc432ef2..a590232a0b 100644
--- a/indra/newview/llpanelimcontrolpanel.h
+++ b/indra/newview/llpanelimcontrolpanel.h
@@ -35,6 +35,7 @@
 
 #include "llpanel.h"
 #include "llvoicechannel.h"
+#include "llcallingcard.h"
 
 class LLSpeakerMgr;
 class LLAvatarList;
@@ -66,7 +67,7 @@ private:
 };
 
 
-class LLPanelIMControlPanel : public LLPanelChatControlPanel
+class LLPanelIMControlPanel : public LLPanelChatControlPanel, LLFriendObserver
 {
 public:
 	LLPanelIMControlPanel();
@@ -76,6 +77,9 @@ public:
 
 	void setSessionId(const LLUUID& session_id);
 
+	// LLFriendObserver trigger
+	virtual void changed(U32 mask);
+
 protected:
 	void nameUpdatedCallback(const LLUUID& id, const std::string& first, const std::string& last, BOOL is_group);