CHUI-400 FIXED Disable "Activate Group" menu item if selected group is the active group

indra/newview/llimfloatercontainer.cpp

@@ -961,6 +961,12 @@ bool LLIMFloaterContainer::enableContextMenuItem(const LLSD& userdata)
     uuid_vec_t mUUIDs;
     getParticipantUUIDs(mUUIDs);
 
+    if(item == std::string("can_activate_group"))
+    {
+    	LLUUID selected_group_id = getCurSelectedViewModelItem()->getUUID();
+    	return gAgent.getGroupID() != selected_group_id;
+    }
+
     if(mUUIDs.size() <= 0)
     {
         return false;

indra/newview/skins/default/xui/en/menu_conversation.xml

@@ -117,6 +117,7 @@
      layout="topleft"
      name="activate_group">
         <on_click function="Group.DoToSelected" parameter="activate_group"/>
+        <on_enable function="Avatar.EnableItem" parameter="can_activate_group" />
     </menu_item_call>		
     <menu_item_call
      label="Leave Group"