One-shot event handlers: use EventUtil.RegisterOnceFrameEventAndCallback instead of self-unregistering frames

modules/chatcopy.lua

@@ -1,7 +1,5 @@
 pfUI:RegisterModule("chatcopy", function ()
-  local f = CreateFrame("Frame")
-  f:RegisterEvent("PLAYER_ENTERING_WORLD")
-  f:SetScript("OnEvent", function()
+  EventUtil.RegisterOnceFrameEventAndCallback("PLAYER_ENTERING_WORLD", function()
     if not pfUI.chat then return end
 
     local button = CreateFrame("Button", "pfChatCopyButton", pfUI.chat.left.panelTop)
@@ -99,7 +97,5 @@ pfUI:RegisterModule("chatcopy", function ()
 
       frame.scroll = scroll
     end
-
-    this:UnregisterAllEvents()
   end)
 end)

modules/thirdparty-vanilla.lua

@@ -801,11 +801,7 @@ pfUI:RegisterModule("thirdparty-vanilla", function()
   HookAddon("SortBags", function()
     if C.thirdparty.sortbags.enable == "0" then return end
 
-    local sort = CreateFrame("Frame", nil)
-    sort:RegisterEvent("PLAYER_ENTERING_WORLD")
-    sort:SetScript("OnEvent", function()
-      this:UnregisterAllEvents()
-
+    EventUtil.RegisterOnceFrameEventAndCallback("PLAYER_ENTERING_WORLD", function()
       pfUI.thirdparty.RegisterBagSort("SortBags",
         function()
           SortBags()

modules/thirdparty.lua

@@ -142,11 +142,7 @@ pfUI:RegisterModule("thirdparty", function()
   HookAddon("MrPlow", function()
     if C.thirdparty.mrplow.enable == "0" then return end
 
-    local sort = CreateFrame("Frame", nil)
-    sort:RegisterEvent("PLAYER_ENTERING_WORLD")
-    sort:SetScript("OnEvent", function()
-      this:UnregisterAllEvents()
-
+    EventUtil.RegisterOnceFrameEventAndCallback("PLAYER_ENTERING_WORLD", function()
       local MrPlowL = AceLibrary and AceLibrary("AceLocale-2.2"):new("MrPlow")
       if not (MrPlowL and MrPlowL["Bank"]) then return end
 

modules/unitxp.lua

@@ -180,33 +180,7 @@ pfUI:RegisterModule("unitxp", function ()
   CreateTargetIndicators()
 
   -- Also try on PLAYER_ENTERING_WORLD in case target frame wasn't ready
-  local initFrame = CreateFrame("Frame")
-  initFrame:RegisterEvent("PLAYER_ENTERING_WORLD")
-  initFrame:RegisterEvent("PLAYER_LOGOUT")
-  initFrame:SetScript("OnEvent", function()
-    -- Handle shutdown to prevent crash 132
-    if event == "PLAYER_LOGOUT" then
-      this:UnregisterAllEvents()
-      this:SetScript("OnEvent", nil)
-      -- Stop indicator OnUpdate scripts
-      if pfUI.uf and pfUI.uf.target then
-        if pfUI.uf.target.behindIndicator then
-          pfUI.uf.target.behindIndicator:SetScript("OnUpdate", nil)
-        end
-        if pfUI.uf.target.distanceIndicator then
-          pfUI.uf.target.distanceIndicator:SetScript("OnUpdate", nil)
-        end
-        -- free-frame mode polls from its own scanner frame, not the indicator
-        if pfUI.uf.target.distanceScanner then
-          pfUI.uf.target.distanceScanner:SetScript("OnUpdate", nil)
-        end
-      end
-      return
-    end
-    
-    CreateTargetIndicators()
-    this:UnregisterAllEvents()
-  end)
+  EventUtil.RegisterOnceFrameEventAndCallback("PLAYER_ENTERING_WORLD", CreateTargetIndicators)
 
   -- OS Notification Support
   if C.unitframes.unitxp_notify == "1" then