thirdparty: add support for superwow spell cast

modules/thirdparty-vanilla.lua

@@ -796,6 +796,49 @@ pfUI:RegisterModule("thirdparty-vanilla", "vanilla", function()
     end)
   end)
 
+  -- SuperWoW
+  -- Vanilla: https://github.com/balakethelock/SuperWoW
+  HookAddonOrVariable("SpellInfo", function()
+    if C.thirdparty.superwow.enable == "0" then return end
+
+    -- add UnitGUID based casting info to libcast
+    local unitcast = CreateFrame("Frame")
+    unitcast:RegisterEvent("UNIT_CASTEVENT")
+    unitcast:SetScript("OnEvent", function()
+      if event == "UNIT_CASTEVENT" and arg3 == "START" then
+        -- human readable argument list
+        local guid = arg1
+        local target = arg2
+        local event_type = arg3
+        local spell_id = arg4
+        local timer = arg5
+        local start = GetTime()
+
+        -- get spell info from spell id
+        local spell, icon, _
+        if SpellInfo and SpellInfo(spell_id) then
+          spell, _, icon = SpellInfo(spell_id)
+        end
+
+        -- set fallback values
+        spell = spell or UNKNOWN
+        icon = icon or "Interface\\Icons\\INV_Misc_QuestionMark"
+
+        -- add cast action to the database
+        if not libcast.db[guid] then libcast.db[guid] = {} end
+        libcast.db[guid].cast = spell
+        libcast.db[guid].rank = nil
+        libcast.db[guid].start = GetTime()
+        libcast.db[guid].casttime = timer
+        libcast.db[guid].icon = icon
+        libcast.db[guid].channel = false
+
+        -- write state variable
+        superwow_active = true
+      end
+    end)
+  end)
+
   -- SortBags
   -- Vanilla: https://github.com/shirsig/SortBags-vanilla
   HookAddonOrVariable("SortBags", function()