hunterbar: delay and queue ability scanner events

modules/hunterbar.lua

@@ -12,29 +12,41 @@ pfUI:RegisterModule("hunterbar", "vanilla", function ()
   pfUI.hunterbar:RegisterEvent("ACTIONBAR_SLOT_CHANGED")
   pfUI.hunterbar:RegisterEvent("PLAYER_ENTERING_WORLD")
   pfUI.hunterbar:SetScript("OnEvent", function()
-    pfUI.hunterbar.melee = nil
-    pfUI.hunterbar.ranged = nil
-
-    for i=1,120 do
-      if pfUI.hunterbar.melee and pfUI.hunterbar.ranged then return end
-
-      scanner:SetAction(i)
-
-      local left = scanner:Line(1)
-      if left then
-        if left == L["hunterpaging"]["MELEE"] then
-          pfUI.hunterbar.melee = i
-        elseif left == L["hunterpaging"]["RANGED"] then
-          pfUI.hunterbar.ranged = i
-        end
-      end
+    if event == "PLAYER_ENTERING_WORLD" then
+      this.event = GetTime() + 3
+    elseif this.event and this.event < GetTime() + .2 then
+      this.event = GetTime() + .1
     end
   end)
 
   pfUI.hunterbar:SetScript("OnUpdate", function()
-    if not pfUI.hunterbar.melee or not pfUI.hunterbar.ranged then return end
+    -- we got an event 0.1s ago, scanning for new Skills
+    if this.event and this.event <= GetTime() then
+      this.event = nil
+      this.melee = nil
+      this.ranged = nil
 
-    if IsActionInRange(pfUI.hunterbar.melee) == 1 and IsActionInRange(pfUI.hunterbar.ranged) == 0 then
+      for i=1,120 do
+        if this.melee and this.ranged then return end
+
+        scanner:SetAction(i)
+
+        local left = scanner:Line(1)
+        if left then
+          if left == L["hunterpaging"]["MELEE"] then
+            this.melee = i
+          elseif left == L["hunterpaging"]["RANGED"] then
+            this.ranged = i
+          end
+        end
+      end
+    end
+
+    -- skip further code when no abilities were found
+    if not this.melee or not this.ranged then return end
+
+    -- do the actual rangedetection and barswapping
+    if IsActionInRange(this.melee) == 1 and IsActionInRange(this.ranged) == 0 then
       if _G.CURRENT_ACTIONBAR_PAGE == 1 then
         _G.CURRENT_ACTIONBAR_PAGE = 9
         ChangeActionBarPage()