api: cache mouse-drag functions

api/api.lua

@@ -454,6 +454,8 @@ end
 -- 'name'       [frame/string]  Name of the Frame that should be movable
 -- 'addon'      [string]        Addon that must be loaded before being able to access the frame
 -- 'blacklist'  [table]         A list of frames that should be deactivated for mouse usage
+local function MoveMouseDown() this:StartMoving() end
+local function MoveMouseUp() this:StopMovingOrSizing() end
 function pfUI.api.EnableMovable(name, addon, blacklist)
   if addon then
     local scan = CreateFrame("Frame")
@@ -470,13 +472,9 @@ function pfUI.api.EnableMovable(name, addon, blacklist)
 
         frame:SetMovable(true)
         frame:EnableMouse(true)
-        frame:SetScript("OnMouseDown",function()
-          this:StartMoving()
-        end)
+        frame:SetScript("OnMouseDown", MoveMouseDown)
+        frame:SetScript("OnMouseUp", MoveMouseUp)
 
-        frame:SetScript("OnMouseUp",function()
-          this:StopMovingOrSizing()
-        end)
         this:UnregisterAllEvents()
       end
     end)
@@ -491,13 +489,8 @@ function pfUI.api.EnableMovable(name, addon, blacklist)
     if type(name) == "string" then frame = _G[name] end
     frame:SetMovable(true)
     frame:EnableMouse(true)
-    frame:SetScript("OnMouseDown",function()
-      this:StartMoving()
-    end)
-
-    frame:SetScript("OnMouseUp",function()
-      this:StopMovingOrSizing()
-    end)
+    frame:SetScript("OnMouseDown", MoveMouseDown)
+    frame:SetScript("OnMouseUp", MoveMouseUp)
   end
 end