fixed bug EXT-4445 [BSI] Can start an IM session with myself and offer items via context menu in group chat participants list

--HG--
branch : product-engine

indra/newview/llparticipantlist.cpp

@@ -582,7 +582,7 @@ void LLParticipantList::LLParticipantListMenu::moderateVoiceOtherParticipants(co
 bool LLParticipantList::LLParticipantListMenu::enableContextMenuItem(const LLSD& userdata)
 {
 	std::string item = userdata.asString();
-	if (item == "can_mute_text" || "can_block" == item)
+	if (item == "can_mute_text" || "can_block" == item || "can_share" == item || "can_im" == item)
 	{
 		return mUUIDs.front() != gAgentID;
 	}

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

@@ -47,6 +47,9 @@
      name="IM">
         <menu_item_call.on_click
          function="Avatar.IM" />
+        <menu_item_call.on_enable
+         function="ParticipantList.EnableItem"
+         parameter="can_im" />
     </menu_item_call>
     <menu_item_call
      label="Call"
@@ -65,6 +68,9 @@
      name="Share">
         <menu_item_call.on_click
          function="Avatar.Share" />
+        <menu_item_call.on_enable
+         function="ParticipantList.EnableItem"
+         parameter="can_share" />
     </menu_item_call>
     <menu_item_call
      label="Pay"