Gracefully disable pfUI when ClassicAPI is missing

Add API_Check.lua as the first TOC entry. When the ClassicAPI DLL is
absent or below the minimum version it sets pfUI_disabled and stands up
an inert stub so the rest of the addon no-ops instead of flooding load
errors: modules and skins register their bodies into no-ops, and the
setfenv'd api/lib files run inside an environment where CreateFrame and
any missing global resolve to a null object -- so no real frames or live
handlers are created and missing API calls just return null. pfUI.lua
bails early on pfUI_disabled.

API_Check.lua

@@ -0,0 +1,104 @@
+do
+  -- ClassicAPI dependency check.
+  -- pfUI relies pervasively on the modern C_* / SuperWoW / nameplate / focus
+  -- API surface that ClassicAPI polyfills, so presence is required.
+  local PFUI_CLASSIC_API_MIN     = 11301  -- (X*10000 + Y*100 + Z)
+  local PFUI_CLASSIC_API_LATEST  = PFUI_CLASSIC_API_MIN
+  local PFUI_CLASSIC_API_WEBSITE = "https://github.com/brues-code/ClassicAPI"
+  local PFUI_CLASSIC_API_LATEST_URL = PFUI_CLASSIC_API_WEBSITE .. "/releases/latest"
+  local function FormatVersion(packed)
+    local x = math.floor(packed / 10000)
+    local y = math.floor(math.mod(packed, 10000) / 100)
+    local z = math.mod(packed, 100)
+    return string.format("v%d.%d.%d", x, y, z)
+  end
+  if not CLASSIC_API_VERSION or CLASSIC_API_VERSION < PFUI_CLASSIC_API_MIN then
+    local minVersion = FormatVersion(PFUI_CLASSIC_API_MIN)
+    pfUI_disabled = true
+    pfUI_locale = {}
+    pfUI_profiles = {}
+    pfUI_translation = {}
+
+    -- ClassicAPI is required. Rather than let the ~140 files that follow flood
+    -- errors as they load, stand up an inert stub so everything no-ops:
+    --   * modules/skins register their body into a no-op, so it never runs;
+    --   * the setfenv'd api/lib files run inside `env`, where CreateFrame and
+    --     any missing global (C_*, SuperWoW, ...) resolve to a null object --
+    --     so no real frames or live OnUpdate/OnEvent handlers get created and
+    --     missing API calls just return null instead of erroring.
+    local null  -- forward declaration so the metamethods can return it
+    local nullmt = {
+      __index = function() return null end,
+      __newindex = function() end,
+      __call = function() return null end,
+      __concat = function() return "" end,
+      __tostring = function() return "" end,
+    }
+    for _, op in ipairs({ "__add","__sub","__mul","__div","__mod","__pow","__unm" }) do
+      nullmt[op] = function() return null end
+    end
+    for _, op in ipairs({ "__lt","__le","__eq" }) do nullmt[op] = function() return false end end
+    null = setmetatable({}, nullmt)
+
+    local realG = getfenv(0)
+    pfUI = setmetatable({}, { __index = function() return null end })
+    pfUI.env = setmetatable({}, {
+      __index = function(_, k)
+        if k == "CreateFrame" then return function() return null end end
+        local v = realG[k]
+        if v ~= nil then return v end
+        return null
+      end,
+    })
+    function pfUI:RegisterModule(_, _, _) end
+    function pfUI:RegisterSkin(_, _, _) end
+    function pfUI:GetEnvironment() return pfUI.env end
+    local detail
+    if not CLASSIC_API_VERSION then
+      detail = "The ClassicAPI DLL isn't loaded. The |cff33ffcc!!!ClassicAPI|r addon ships bundled with it -- delete your |cff33ffcc!!!ClassicAPI|r folder and install the latest release from:"
+    else
+      detail = "ClassicAPI " .. minVersion .. " or newer is required. Delete your |cff33ffcc!!!ClassicAPI|r folder and reinstall the latest release from:"
+    end
+
+    local function ShowRequiredPopup()
+      StaticPopupDialogs["PFUI_CLASSICAPI_REQUIRED"] = {
+        text = "|cff33ffccpf|cffffffffUI|r has been disabled.\n\n" .. detail,
+        button1 = OKAY,
+        hasEditBox = 1,
+        editBoxWidth = 280,
+        timeout = 0,
+        whileDead = 1,
+        hideOnEscape = 1,
+        preferredIndex = 3,
+        OnShow = function()
+          local editBox = getglobal(this:GetName().."EditBox")
+          if editBox then
+            editBox:SetText(PFUI_CLASSIC_API_LATEST_URL)
+            editBox:HighlightText()
+            editBox:SetFocus()
+          end
+        end,
+      }
+      StaticPopup_Show("PFUI_CLASSICAPI_REQUIRED")
+      DEFAULT_CHAT_FRAME:AddMessage(
+        "|cff33ffccpf|cffffffffUI|r disabled: " .. detail .. " " .. PFUI_CLASSIC_API_LATEST_URL,
+        1, 0.3, 0.3
+      )
+    end
+    local loginFrame = CreateFrame("Frame")
+    loginFrame:RegisterEvent("PLAYER_ENTERING_WORLD")
+    loginFrame:SetScript("OnEvent", function()
+      loginFrame:UnregisterEvent("PLAYER_ENTERING_WORLD")
+      ShowRequiredPopup()
+    end)
+  elseif CLASSIC_API_VERSION < PFUI_CLASSIC_API_LATEST then
+    EventUtil.ContinueOnPlayerLogin(function()
+      C_Timer.After(8, function()
+        DEFAULT_CHAT_FRAME:AddMessage(
+          "|cff33ffccpf|rUI: ClassicAPI " .. FormatVersion(PFUI_CLASSIC_API_LATEST) .. " is available — " .. PFUI_CLASSIC_API_LATEST_URL,
+          1, 0.85, 0.3
+        )
+      end)
+    end)
+  end
+end

api/unitframes.lua

@@ -1638,39 +1638,40 @@ function pfUI.uf:RefreshUnit(unit, component)
     for i=1, unit.config.bufflimit do
       if not unit.buffs[i] then break end
 
-      local aura = C_UnitAuras.GetBuffDataByIndex(unitstr, i)
+      -- positional UnitBuff allocates nothing (vs a table per icon per refresh)
+      local name, icon, count, _, duration, expirationTime, _, _, _, spellId = C_UnitAuras.UnitBuff(unitstr, i)
 
-      if aura then
-        unit.buffs[i].texture:SetTexture(aura.icon)
+      if name then
+        unit.buffs[i].texture:SetTexture(icon)
         unit.buffs[i]:Show()
 
-        if aura.applications > 1 then
-          unit.buffs[i].stacks:SetText(aura.applications)
+        if count > 1 then
+          unit.buffs[i].stacks:SetText(count)
         else
           unit.buffs[i].stacks:SetText("")
         end
 
-        if aura.expirationTime > 0 then
+        if expirationTime > 0 then
           -- pfUI's cooldown text falls into a 2^32 wraparound branch when start > GetTime(),
-          -- which happens for talent-extended buffs where the real duration exceeds aura.duration
-          -- (the Spell.dbc base). Anchor start to now in that case to keep the remaining math sane.
+          -- which happens for talent-extended buffs where the real duration exceeds the
+          -- Spell.dbc base. Anchor start to now in that case to keep the remaining math sane.
           local now = GetTime()
-          local start = aura.expirationTime - aura.duration
-          local duration = aura.duration
-          if start > now or duration <= 0 then
-            start, duration = now, aura.expirationTime - now
+          local start = expirationTime - duration
+          local dur = duration
+          if start > now or dur <= 0 then
+            start, dur = now, expirationTime - now
           end
-          if duration > 0 then
-            CooldownFrame_SetTimer(unit.buffs[i].cd, start, duration, 1)
+          if dur > 0 then
+            CooldownFrame_SetTimer(unit.buffs[i].cd, start, dur, 1)
           else
             CooldownFrame_SetTimer(unit.buffs[i].cd, 0, 0, 0)
           end
-        elseif aura.duration > 0 then
+        elseif duration > 0 then
           local guid = UnitGUID(unitstr)
           local guidStarts = guid and pfUI.uf.aura_starts[guid]
-          local start = guidStarts and guidStarts[aura.spellId]
+          local start = guidStarts and guidStarts[spellId]
           if start then
-            CooldownFrame_SetTimer(unit.buffs[i].cd, start, aura.duration, 1)
+            CooldownFrame_SetTimer(unit.buffs[i].cd, start, duration, 1)
           else
             CooldownFrame_SetTimer(unit.buffs[i].cd, 0, 0, 0)
           end
@@ -1741,10 +1742,11 @@ function pfUI.uf:RefreshUnit(unit, component)
       -- selfdebuff narrows to player-cast harmful auras via the PLAYER filter.
       -- Player-frame debuffs aren't gated on it (it'd hide most party-applied
       -- effects on you).
-      local filter = (unit.label ~= "player" and selfdebuff == "1") and "HARMFUL|PLAYER" or "HARMFUL"
-      local aura = C_UnitAuras.GetAuraDataByIndex(unitstr, i, filter)
-      if aura then
-        texture, stacks, dtype = aura.icon, aura.applications, aura.dispelName
+      -- positional UnitDebuff allocates nothing; PLAYER predicate honored for selfdebuff
+      local filter = (unit.label ~= "player" and selfdebuff == "1") and "PLAYER" or nil
+      local name, icon, count, dispelType, duration, expirationTime = C_UnitAuras.UnitDebuff(unitstr, i, filter)
+      if name then
+        texture, stacks, dtype = icon, count, dispelType
       else
         texture, stacks, dtype = nil, 0, nil
       end
@@ -1757,18 +1759,18 @@ function pfUI.uf:RefreshUnit(unit, component)
       if texture then
         unit.debuffs[i]:Show()
 
-        if aura and aura.expirationTime > 0 then
+        if expirationTime > 0 then
           -- Cap start to now so talent-extended debuffs (expirationTime past
           -- the dbc base duration) don't push start into the future and trip
           -- CooldownFrame_SetTimer's 2^32-wraparound branch.
           local now = GetTime()
-          local start = aura.expirationTime - aura.duration
-          local duration = aura.duration
-          if start > now or duration <= 0 then
-            start, duration = now, aura.expirationTime - now
+          local start = expirationTime - duration
+          local dur = duration
+          if start > now or dur <= 0 then
+            start, dur = now, expirationTime - now
           end
-          if duration > 0 then
-            CooldownFrame_SetTimer(unit.debuffs[i].cd, start, duration, 1)
+          if dur > 0 then
+            CooldownFrame_SetTimer(unit.debuffs[i].cd, start, dur, 1)
           else
             CooldownFrame_SetTimer(unit.debuffs[i].cd, 0, 0, 0)
           end
@@ -1826,6 +1828,17 @@ function pfUI.uf:RefreshUnit(unit, component)
         end
       end
 
+      -- Scan the 16 harmful slots once into a reusable set, instead of
+      -- re-scanning all 16 for every dispellable type below. Reused across
+      -- frames (populated and consumed within this single RefreshUnit call).
+      local present = pfUI.uf.dispelPresent or {}
+      pfUI.uf.dispelPresent = present
+      for k in pairs(present) do present[k] = nil end
+      for i=1,16 do
+        local name, _, _, dispelType = C_UnitAuras.UnitDebuff(unitstr, i)
+        if name and dispelType and dispelType ~= "" then present[dispelType] = true end
+      end
+
       for _, debuff in pairs(unit.dispellable) do
         indicator[debuff] = indicator[debuff] or CreateFrame("Frame", nil, indicator)
         indicator[debuff]:SetParent(indicator)
@@ -1865,15 +1878,7 @@ function pfUI.uf:RefreshUnit(unit, component)
           indicator[debuff].disp = indicator.disp
         end
 
-        indicator[debuff].visible = nil
-
-        for i=1,16 do
-          local a = C_UnitAuras.GetDebuffDataByIndex(unitstr, i)
-          local dtype = a and a.dispelName
-          if dtype == debuff then
-            indicator[debuff].visible = true
-          end
-        end
+        indicator[debuff].visible = present[debuff]
 
         if indicator[debuff].visible then
           indicator[debuff]:Show()
@@ -1920,50 +1925,58 @@ function pfUI.uf:RefreshUnit(unit, component)
 
     local pos = 1
     if table.getn(unit.indicators) > 0 then
-      for _, aura in ipairs(C_UnitAuras.GetUnitAuras(unitstr, "HELPFUL")) do
-        local texLower = string.lower(aura.icon)
-        local timeleft = aura.expirationTime > 0 and (aura.expirationTime - GetTime()) or nil
+      local i = 1
+      while true do
+        local name, icon, count, _, _, expirationTime = C_UnitAuras.UnitBuff(unitstr, i)
+        if not name then break end
+        local texLower = string.lower(icon)
+        local timeleft = expirationTime > 0 and (expirationTime - GetTime()) or nil
 
         for _, filter in pairs(unit.indicators) do
           if filter == texLower then
             local hot = HOT_INDICATORS[texLower]
-            if hot and string.lower(aura.name) ~= hot.name then
+            if hot and string.lower(name) ~= hot.name then
               break  -- texture matches but name disambiguates (e.g. shared icon)
             end
             if hot then
               local start, duration, prediction = libpredict:GetHotDuration(unitstr, hot.predict)
-              pfUI.uf:AddIcon(unit, pos, aura.icon, timeleft or prediction, aura.applications, tonumber(start), tonumber(duration))
+              pfUI.uf:AddIcon(unit, pos, icon, timeleft or prediction, count, tonumber(start), tonumber(duration))
             else
-              pfUI.uf:AddIcon(unit, pos, aura.icon, timeleft, aura.applications)
+              pfUI.uf:AddIcon(unit, pos, icon, timeleft, count)
             end
             pos = pos + 1
             break
           end
         end
+        i = i + 1
       end
     end
 
     if table.getn(unit.indicator_custom) > 0 then
-      for _, aura in ipairs(C_UnitAuras.GetUnitAuras(unitstr, "HELPFUL")) do
-        local timeleft = aura.expirationTime > 0 and (aura.expirationTime - GetTime()) or nil
-        local lowerName = string.lower(aura.name)
+      local ai = 1
+      while true do
+        local name, icon, count, _, _, expirationTime = C_UnitAuras.UnitBuff(unitstr, ai)
+        if not name then break end
+        local timeleft = expirationTime > 0 and (expirationTime - GetTime()) or nil
+        local lowerName = string.lower(name)
         for _, filter in pairs(unit.indicator_custom) do
           if filter == lowerName then
-            pfUI.uf:AddIcon(unit, pos, aura.icon, timeleft, aura.applications)
+            pfUI.uf:AddIcon(unit, pos, icon, timeleft, count)
             pos = pos + 1
             break
           end
         end
+        ai = ai + 1
       end
 
-      local debuffFilter = unit.config.selfdebuff == "1" and "HARMFUL|PLAYER" or "HARMFUL"
+      local debuffFilter = unit.config.selfdebuff == "1" and "PLAYER" or nil
       for i=1,16 do -- scan for custom debuffs
-        local aura = C_UnitAuras.GetAuraDataByIndex(unitstr, i, debuffFilter)
-        if aura then
-          local timeleft = aura.expirationTime > 0 and (aura.expirationTime - GetTime()) or nil
+        local name, icon, count, _, _, expirationTime = C_UnitAuras.UnitDebuff(unitstr, i, debuffFilter)
+        if name then
+          local timeleft = expirationTime > 0 and (expirationTime - GetTime()) or nil
           for _, filter in pairs(unit.indicator_custom) do
-            if filter == string.lower(aura.name) then
-              pfUI.uf:AddIcon(unit, pos, aura.icon, timeleft, aura.applications)
+            if filter == string.lower(name) then
+              pfUI.uf:AddIcon(unit, pos, icon, timeleft, count)
               pos = pos + 1
               break
             end

env/tables.lua

@@ -63,6 +63,12 @@ for i=1,40 do
   pfValidUnits["nameplate" .. i .. "target"] = true
 end
 
+
+if TURTLE_WOW_VERSION then -- We already know this table is going to be replaced by turtle-wow.lua, so there's no point in declaring it.
+  pfSellData = {} -- create empty just incase user has turtle-wow module disabled.
+  return
+end
+-- This table makes me sick.
 -- itemid = buyPrice (copper). Sell price comes from C_Item.GetItemSellPriceByID;
 -- this table only carries the curated vendor-buy price (which isn't a static
 -- engine field — it's collected from real vendor encounters).

libs/libpredict.lua

@@ -168,6 +168,9 @@ pfUI.libdebuff_spell_start_self_hooks["libpredict"] = function(spellId, casterGu
     return
   end
 
+  spell_queue[1] = spellName
+  spell_queue[2] = spellName .. (C_Spell.GetSpellSubtext(spellId) or "")
+
   if spell_queue[1] == spellName and cache[spell_queue[2]] then
     local amount   = cache[spell_queue[2]][1]
     local casttime = castTime

modules/buff.lua

@@ -23,7 +23,7 @@ pfUI:RegisterModule("buff", function ()
       CreateBackdropShadow(buff)
     end
 
-    local aura = C_UnitAuras.GetAuraDataByIndex("player", buff.id, buff.btype)
+    local name, icon, count, dispelType, _, expirationTime, _, _, _, spellId = C_UnitAuras.UnitAura("player", buff.id, buff.btype)
 
     --detect weapon buffs
     if buff.btype == "HELPFUL" and ((C.buffs.separateweapons == "0" and buff.gid <= pfUI.buff.wepbuffs.count) or (pfUI.buff.wepbuffs.count > 0 and buff.weapon ~= nil)) then
@@ -55,16 +55,16 @@ pfUI:RegisterModule("buff", function ()
         buff.texture:SetTexture(GetInventoryItemTexture("player", 17))
         buff.backdrop:SetBackdropBorderColor(GetItemQualityColor(GetInventoryItemQuality("player", 17) or 1))
       end
-    elseif aura and (( buff.btype == "HARMFUL" and C.buffs.debuffs == "1" ) or ( buff.btype == "HELPFUL" and C.buffs.buffs == "1" )) then
+    elseif name and (( buff.btype == "HARMFUL" and C.buffs.debuffs == "1" ) or ( buff.btype == "HELPFUL" and C.buffs.buffs == "1" )) then
       -- Set Buff Texture and Border
       buff.mode = buff.btype
-      buff.expirationTime = aura.expirationTime
-      buff.stackCount = aura.applications
-      buff.spellId = aura.spellId
-      buff.texture:SetTexture(aura.icon)
+      buff.expirationTime = expirationTime
+      buff.stackCount = count
+      buff.spellId = spellId
+      buff.texture:SetTexture(icon)
 
       if buff.btype == "HARMFUL" then
-        local dispelColor = C_UnitAuras.GetAuraDispelTypeColor(aura.dispelName)
+        local dispelColor = C_UnitAuras.GetAuraDispelTypeColor(dispelType)
         buff.backdrop:SetBackdropBorderColor(dispelColor:GetRGBA())
       else
         buff.backdrop:SetBackdropBorderColor(br,bg,bb,ba)

modules/buffwatch.lua

@@ -75,10 +75,10 @@ pfUI:RegisterModule("buffwatch", function ()
 
   local function GetBuffData(unit, id, type, selfdebuff)
     local filter = (selfdebuff and type == "HARMFUL") and "HARMFUL|PLAYER" or type
-    local aura = C_UnitAuras.GetAuraDataByIndex(unit, id, filter)
-    if not aura then return end
-    local remaining = aura.expirationTime > 0 and (aura.expirationTime - GetTime()) or 0
-    return remaining, aura.icon, aura.name, aura.applications
+    local name, icon, count, dispelType, _, expirationTime = C_UnitAuras.UnitAura(unit, id, filter)
+    if not name then return end
+    local remaining = expirationTime > 0 and (expirationTime - GetTime()) or 0
+    return remaining, icon, name, count, dispelType
   end
 
   local function StatusBarOnClick()
@@ -236,7 +236,7 @@ pfUI:RegisterModule("buffwatch", function ()
     local selfdebuff = frame.config.selfdebuff == "1"
 
     for i=1,32 do
-      local timeleft, texture, name, stacks = GetBuffData(frame.unit, i, frame.type, selfdebuff)
+      local timeleft, texture, name, stacks, dtype = GetBuffData(frame.unit, i, frame.type, selfdebuff)
       timeleft = timeleft or 0
 
       if texture and name and name ~= "" and BuffIsVisible(frame.config, name) then
@@ -245,12 +245,14 @@ pfUI:RegisterModule("buffwatch", function ()
         frame.buffs[i][3] = name
         frame.buffs[i][4] = texture
         frame.buffs[i][5] = stacks
+        frame.buffs[i][6] = dtype
       else
         frame.buffs[i][1] = 0
         frame.buffs[i][2] = nil
         frame.buffs[i][3] = nil
         frame.buffs[i][4] = nil
         frame.buffs[i][5] = 0
+        frame.buffs[i][6] = nil
       end
     end
 
@@ -294,12 +296,9 @@ pfUI:RegisterModule("buffwatch", function ()
           -- calculate dynamic auto color
           local r, g, b
           if frame.type == "HARMFUL" then
-            r, g, b = 1, .2, .2
-            local a = C_UnitAuras.GetDebuffDataByIndex(frame.unit, data[2])
-            local dtype = a and a.dispelName
-            if dtype and DebuffTypeColor[dtype] then
-              r,g,b = DebuffTypeColor[dtype].r,DebuffTypeColor[dtype].g,DebuffTypeColor[dtype].b
-            end
+            -- official Blizzard dispel-type colors (matches unitframes/buff);
+            -- nil/unknown type falls back to the DEBUFF_TYPE_NONE colour
+            r, g, b = C_UnitAuras.GetAuraDispelTypeColor(data[6] or ""):GetRGBA()
           else
             r,g,b = str2rgb(data[3])
           end

modules/castbar.lua

@@ -45,7 +45,7 @@ pfUI:RegisterModule("castbar", function ()
     if not cb.tradeskillTotal or not cb.activeName or not cb.showname then return end
     local remaining = cb.tradeskillTotal - (cb.tradeskillCompleted or 0)
     if remaining > 1 then
-      cb.bar.left:SetText(string.format("%s (%d)", cb.activeName, remaining))
+      cb.bar.left:SetFormattedText("%s (%d)", cb.activeName, remaining)
     else
       cb.bar.left:SetText(cb.activeName)
     end

modules/chat.lua

@@ -296,6 +296,54 @@ pfUI:RegisterModule("chat", function ()
     end
   end
 
+  -- [ Chat Background Alpha ]
+  -- Blizzard's per-window transparency slider drives FCF_SetWindowAlpha, which only
+  -- touches the ChatFrame*Background textures that pfUI hides on docked frames. Mirror
+  -- the window's stored alpha onto the visible pfUI backdrop so the native slider
+  -- controls it directly. The slider is authoritative for the panel's alpha.
+  local function ApplyChatBackgroundAlpha(panel, frame)
+    if not (panel and panel.backdrop and frame) then return end
+    local _, _, _, _, _, alpha = GetChatWindowInfo(frame:GetID())
+    alpha = tonumber(alpha)
+    if not alpha then return end
+    local r, g, b = panel.backdrop:GetBackdropColor()
+    panel.backdrop:SetBackdropColor(r, g, b, alpha)
+  end
+
+  function pfUI.chat:RefreshBackgroundAlpha()
+    -- left panel follows the currently selected docked tab
+    local selected = SELECTED_CHAT_FRAME
+    if not (selected and selected:GetParent() == pfUI.chat.left) then
+      selected = ChatFrame1
+    end
+    ApplyChatBackgroundAlpha(pfUI.chat.left, selected)
+
+    if C.chat.right.enable == "1" then
+      ApplyChatBackgroundAlpha(pfUI.chat.right, ChatFrame3)
+    end
+  end
+
+  function pfUI.chat:MigrateBackgroundAlpha()
+    -- Runs once per character. The previous SetupPositions default stored a hard 0 window
+    -- alpha, which now renders the pfUI backdrop fully transparent. Restore the historical
+    -- 0.8 look for any pfUI-managed window still sitting at 0. Only existing installs that
+    -- already ran chat setup carry that legacy 0; fresh installs get 0.8 from SetupPositions.
+    if pfUI_init.chatbgalpha then return end
+    if not pfUI_init["chat_position"] then return end
+    pfUI_init.chatbgalpha = true
+
+    local frames = { ChatFrame1, ChatFrame2 }
+    if C.chat.right.enable == "1" then table.insert(frames, ChatFrame3) end
+
+    for _, frame in ipairs(frames) do
+      local _, _, _, _, _, alpha = GetChatWindowInfo(frame:GetID())
+      alpha = tonumber(alpha)
+      if alpha and alpha <= 0 then
+        FCF_SetWindowAlpha(frame, 0.8)
+      end
+    end
+  end
+
   function pfUI.chat:RefreshChat()
     local panelheight = C.global.font_size*1.5 + default_border*2 + 2
 
@@ -447,9 +495,13 @@ pfUI:RegisterModule("chat", function ()
     for index, value in pairs(DOCKED_CHAT_FRAMES) do
       FCF_UpdateButtonSide(value)
     end
+
+    pfUI.chat:RefreshBackgroundAlpha()
   end
 
   hooksecurefunc("FCF_SaveDock", pfUI.chat.RefreshChat)
+  hooksecurefunc("FCF_SetWindowAlpha", function() pfUI.chat:RefreshBackgroundAlpha() end)
+  hooksecurefunc("FCF_SelectDockFrame", function() pfUI.chat:RefreshBackgroundAlpha() end)
 
   if C.chat.global.tabmouse == "1" then
     pfUI.chat.mouseovertab = CreateFrame("Frame")
@@ -500,7 +552,7 @@ pfUI:RegisterModule("chat", function ()
     FCF_SetLocked(ChatFrame1, 1)
     FCF_SetWindowName(ChatFrame1, GENERAL)
     FCF_SetWindowColor(ChatFrame1, 0, 0, 0)
-    FCF_SetWindowAlpha(ChatFrame1, 0)
+    FCF_SetWindowAlpha(ChatFrame1, 0.8)
     FCF_SetChatWindowFontSize(ChatFrame1, 12)
     ChatFrame1:SetUserPlaced(1)
 
@@ -508,7 +560,7 @@ pfUI:RegisterModule("chat", function ()
     FCF_SetLocked(ChatFrame2, 1)
     FCF_SetWindowName(ChatFrame2, COMBAT_LOG)
     FCF_SetWindowColor(ChatFrame2, 0, 0, 0)
-    FCF_SetWindowAlpha(ChatFrame2, 0)
+    FCF_SetWindowAlpha(ChatFrame2, 0.8)
     FCF_SetChatWindowFontSize(ChatFrame2, 12)
     ChatFrame2:SetUserPlaced(1)
 
@@ -518,7 +570,7 @@ pfUI:RegisterModule("chat", function ()
       FCF_SetLocked(ChatFrame3, 1)
       FCF_SetWindowName(ChatFrame3, T["Loot & Spam"])
       FCF_SetWindowColor(ChatFrame3, 0, 0, 0)
-      FCF_SetWindowAlpha(ChatFrame3, 0)
+      FCF_SetWindowAlpha(ChatFrame3, 0.8)
       FCF_SetChatWindowFontSize(ChatFrame3, 12)
       FCF_UnDockFrame(ChatFrame3)
       FCF_SetTabPosition(ChatFrame3, 0)
@@ -566,6 +618,9 @@ pfUI:RegisterModule("chat", function ()
   end
 
   pfUI.chat:SetScript("OnEvent", function()
+    -- restore legacy chat windows stuck at 0 alpha before anything reads it
+    pfUI.chat:MigrateBackgroundAlpha()
+
     -- set the default chat
     FCF_SelectDockFrame(SELECTED_CHAT_FRAME)
 

modules/firstrun.lua

@@ -127,7 +127,7 @@ pfUI:RegisterModule("firstrun", function ()
   -- welcome dialog
   pfUI.firstrun:AddStep("init", function()
     local f = CreateFirstRunPage()
-    f.text:SetText(string.format(T["Welcome to |cff33ffccpf|cffffffffUI|r!\n\nI'm the first run wizard that will guide you through some basic configuration. If you're lazy, feel free to hit the \"Defaults\" button. If you wish to run this dialog again, go to the settings and hit the \"Reset Firstrun\" button.\n\nVisit |cff33ffcc%s|r to check for the latest version."], GetAddOnMetadata(pfUI.name, "X-Website")))
+    f.text:SetFormattedText(T["Welcome to |cff33ffccpf|cffffffffUI|r!\n\nI'm the first run wizard that will guide you through some basic configuration. If you're lazy, feel free to hit the \"Defaults\" button. If you wish to run this dialog again, go to the settings and hit the \"Reset Firstrun\" button.\n\nVisit |cff33ffcc%s|r to check for the latest version."], GetAddOnMetadata(pfUI.name, "X-Website"))
     return f
   end)
 
@@ -137,8 +137,7 @@ pfUI:RegisterModule("firstrun", function ()
     f.text:SetText(T["A new installation of |cff33ffccpf|rUI ships with 4 prebuilt design profiles. Click below if you wish to load one of these profiles."])
 
     f.Modern = CreateFrame("Button", nil, f, "UIPanelButtonTemplate")
-    f.Modern:SetWidth(120)
-    f.Modern:SetHeight(20)
+    f.Modern:SetSize(120, 20)
     f.Modern:SetPoint("BOTTOM", -65, 100)
     f.Modern:SetTextColor(1,1,1)
     f.Modern:SetText("Modern")
@@ -151,8 +150,7 @@ pfUI:RegisterModule("firstrun", function ()
     SkinButton(f.Modern)
 
     f.Nostalgia = CreateFrame("Button", nil, f, "UIPanelButtonTemplate")
-    f.Nostalgia:SetWidth(120)
-    f.Nostalgia:SetHeight(20)
+    f.Nostalgia:SetSize(120, 20)
     f.Nostalgia:SetPoint("BOTTOM", 65, 100)
     f.Nostalgia:SetTextColor(1,1,1)
     f.Nostalgia:SetText("Nostalgia")
@@ -165,8 +163,7 @@ pfUI:RegisterModule("firstrun", function ()
     SkinButton(f.Nostalgia)
 
     f.Legacy = CreateFrame("Button", nil, f, "UIPanelButtonTemplate")
-    f.Legacy:SetWidth(120)
-    f.Legacy:SetHeight(20)
+    f.Legacy:SetSize(120, 20)
     f.Legacy:SetPoint("BOTTOM", 65, 75)
     f.Legacy:SetTextColor(1,1,1)
     f.Legacy:SetText("Legacy")
@@ -179,8 +176,7 @@ pfUI:RegisterModule("firstrun", function ()
     SkinButton(f.Legacy)
 
     f.Slim = CreateFrame("Button", nil, f, "UIPanelButtonTemplate")
-    f.Slim:SetWidth(120)
-    f.Slim:SetHeight(20)
+    f.Slim:SetSize(120, 20)
     f.Slim:SetPoint("BOTTOM", -65, 75)
     f.Slim:SetTextColor(1,1,1)
     f.Slim:SetText("Slim")
@@ -197,8 +193,7 @@ pfUI:RegisterModule("firstrun", function ()
     f.Slider.text:SetPoint("TOP", f.Slider, "BOTTOM", 0, 2)
     f.Slider.text:SetText(T["Scale"])
 
-    f.Slider:SetWidth(240)
-    f.Slider:SetHeight(20)
+    f.Slider:SetSize(240, 20)
     f.Slider:SetPoint("BOTTOM", 0, 50)
     f.Slider:SetOrientation('HORIZONTAL')
     f.Slider:SetMinMaxValues(0.5, 2.0)

modules/map.lua

@@ -181,7 +181,7 @@ pfUI:RegisterModule("map", function ()
         end
 
         if mx and my and MouseIsOver(WorldMapButton) then
-          WorldMapButton.coords.text:SetText(string.format('%.1f / %.1f', mx, my))
+          WorldMapButton.coords.text:SetFormattedText('%.1f / %.1f', mx, my)
         else
           WorldMapButton.coords.text:SetText("")
         end

modules/minimap.lua

@@ -138,7 +138,7 @@ pfUI:RegisterModule("minimap", function ()
     local coord = pfUI.minimapCoordinates
     coord.posX, coord.posY = GetPlayerMapPosition("player")
     if coord.posX ~= 0 and coord.posY ~= 0 then
-      coord.text:SetText(string.format("%.1f, %.1f", round(coord.posX * 100, 1), round(coord.posY * 100, 1)))
+      coord.text:SetFormattedText("%.1f, %.1f", round(coord.posX * 100, 1), round(coord.posY * 100, 1))
     else
       coord.text:SetText("|cffffaaaaN/A")
     end

modules/nameplates.lua

@@ -296,18 +296,23 @@ pfUI:RegisterModule("nameplates", function ()
     return plate.creatureType
   end
 
-  -- Totem icon, read straight from the game:
-  --   * Passive totems self-cast their provided buff, so they carry exactly one
-  --     aura whose icon IS the totem's icon (Totem::Summon TOTEM_PASSIVE).
-  --   * Active totems (Searing/Magma/Fire Nova) cast at enemies and hold no
-  --     self-aura, so their icon arrives via UNIT_SPELLCAST_SUCCEEDED (cached
-  --     into plate.totemIcon by the event handler); nil here until then.
+  -- Totem icon: UnitCreatedBySpell returns the totem-drop spell, whose icon IS
+  -- the totem's icon. It's a broadcast descriptor field the client has for every
+  -- summoned unit in range, so it resolves immediately for passive and active
+  -- totems alike -- no self-aura read or attack-cast capture needed.
+  --
+  -- Re-read the spell every call rather than caching the icon outright: a shaman
+  -- can swap the totem in place (same unit, new drop spell) with no plate re-add
+  -- to invalidate a cache, so key the cached texture on the spell id and refresh
+  -- it only when the spell changes.
   local function TotemPlate(plate)
     if C.nameplates.totemicons ~= "1" then return nil end
     if CreatureType(plate) ~= 11 then return nil end
-    if plate.totemIcon then return plate.totemIcon end
-    local aura = C_UnitAuras.GetBuffDataByIndex(plate.cachedGuid, 1)
-    if aura then plate.totemIcon = aura.icon end
+    local spellId = UnitCreatedBySpell(plate.cachedGuid)
+    if spellId ~= plate.totemSpell then
+      plate.totemSpell = spellId
+      plate.totemIcon = spellId and C_Spell.GetSpellTexture(spellId) or nil
+    end
     return plate.totemIcon
   end
 
@@ -499,7 +504,6 @@ nameplates:RegisterEvent("UNIT_SPELLCAST_START")
 nameplates:RegisterEvent("UNIT_SPELLCAST_CHANNEL_START")
 nameplates:RegisterEvent("UNIT_SPELLCAST_STOP")
 nameplates:RegisterEvent("UNIT_SPELLCAST_CHANNEL_STOP")
-nameplates:RegisterEvent("UNIT_SPELLCAST_SUCCEEDED")
 nameplates:RegisterEvent("PLAYER_GUILD_UPDATE")
   
   nameplates:SetScript("OnEvent", function()
@@ -588,6 +592,7 @@ nameplates:RegisterEvent("PLAYER_GUILD_UPDATE")
         plate.nameplate.unit = arg1
         plate.nameplate.creatureType = nil  -- recompute for the new unit
         plate.nameplate.totemIcon = nil
+        plate.nameplate.totemSpell = nil
         if guid then
           plateByGuid[guid] = plate.nameplate
           -- Seed: the unit may already be mid-cast (its UNIT_SPELLCAST_START
@@ -665,22 +670,6 @@ nameplates:RegisterEvent("PLAYER_GUILD_UPDATE")
         end
       end
 
-    elseif event == "UNIT_SPELLCAST_SUCCEEDED" then
-      -- Active totems (Searing/Magma/Fire Nova) carry no self-aura, so their
-      -- attack cast is the only icon source. Capture it once per totem, gated on
-      -- creature type so a normal caster's spell never styles it as a totem.
-      if arg1 and strfind(arg1, "^nameplate") then
-        local guid = UnitGUID(arg1)
-        local plate = guid and plateByGuid[guid]
-        if plate and not plate.totemIcon and arg3 and CreatureType(plate) == 11 then
-          local tex = C_Spell.GetSpellTexture(arg3)
-          if tex then
-            plate.totemIcon = tex
-            plate.castUpdate = true  -- re-render now so the icon shows
-          end
-        end
-      end
-
     elseif event == "UNIT_AURA" then
       -- ClassicAPI: fires with arg1 == "nameplateN" when a unit's aura set
       -- changes (add/remove/modify). Flag the matching plate so OnUpdate does a
@@ -1045,7 +1034,13 @@ nameplates:RegisterEvent("PLAYER_GUILD_UPDATE")
     if plate.cache.player == nil and unitstr then
       plate.cache.player = UnitIsPlayer(unitstr) and true or false
     end
-    local class, ulevel, elite, player, guild = GetUnitInfo(name, true, plate.cache.player)
+    if plate.cache.minion == nil and unitstr then
+      plate.cache.minion = UnitIsMinion(unitstr) and true or false
+    end
+    local class, ulevel, elite, player, guild
+    if not plate.cache.minion then
+      class, ulevel, elite, player, guild = GetUnitInfo(name, true, plate.cache.player)
+    end
     if plate.cache.player ~= nil then player = plate.cache.player or nil end
 
     -- Use database level ONLY if current level is ?? (fixes ?? after reload, but doesn't override visible levels)
@@ -1065,7 +1060,7 @@ nameplates:RegisterEvent("PLAYER_GUILD_UPDATE")
     if player and unittype == "ENEMY_NPC" then unittype = "ENEMY_PLAYER" end
     if player and unittype == "FRIENDLY_NPC" then unittype = "FRIENDLY_PLAYER" end
     elite = plate.original.levelicon:IsShown() and not player and "boss" or elite
-    if not class then plate.wait_for_scan = true end
+    if not class and not plate.cache.minion then plate.wait_for_scan = true end
 
     -- skip data updates on invisible frames
     if not visible then return end
@@ -1110,7 +1105,7 @@ nameplates:RegisterEvent("PLAYER_GUILD_UPDATE")
     local TotemIcon = TotemPlate(plate)
 
     if TotemIcon then
-      -- icon resolved from the totem's aura / attack cast (already a full path)
+      -- icon resolved from the totem-drop spell (already a full path)
       plate.totem.icon:SetTexture(TotemIcon)
 
       plate.glow:Hide()
@@ -1151,7 +1146,7 @@ nameplates:RegisterEvent("PLAYER_GUILD_UPDATE")
     if plate.cache.level ~= level or plate.cache.elite ~= elite then
       plate.cache.level = level
       plate.cache.elite = elite
-      plate.level:SetText(string.format("%s%s", level, (elitestrings[elite] or "")))
+      plate.level:SetFormattedText("%s%s", level, (elitestrings[elite] or ""))
     end
 
     -- Set level color from GetDifficultyColor when using DB level.
@@ -1212,21 +1207,21 @@ nameplates:RegisterEvent("PLAYER_GUILD_UPDATE")
       local hasdata = ( rhp and rhpmax ) or estimated or hpmax > 100 or (round(hpmax/100*hp) ~= hp)
 
       if setting == "curperc" and hasdata and rhp then
-        plate.health.text:SetText(string.format("%s | %s%%", Abbreviate(rhp), ceil(hp/hpmax*100)))
+        plate.health.text:SetFormattedText("%s | %s%%", Abbreviate(rhp), ceil(hp/hpmax*100))
       elseif setting == "cur" and hasdata and rhp then
-        plate.health.text:SetText(string.format("%s", Abbreviate(rhp)))
+        plate.health.text:SetFormattedText("%s", Abbreviate(rhp))
       elseif setting == "curmax" and hasdata and rhp then
-        plate.health.text:SetText(string.format("%s - %s", Abbreviate(rhp), Abbreviate(rhpmax)))
+        plate.health.text:SetFormattedText("%s - %s", Abbreviate(rhp), Abbreviate(rhpmax))
       elseif setting == "curmaxs" and hasdata and rhp then
-        plate.health.text:SetText(string.format("%s / %s", Abbreviate(rhp), Abbreviate(rhpmax)))
+        plate.health.text:SetFormattedText("%s / %s", Abbreviate(rhp), Abbreviate(rhpmax))
       elseif setting == "curmaxperc" and hasdata and rhp then
-        plate.health.text:SetText(string.format("%s - %s | %s%%", Abbreviate(rhp), Abbreviate(rhpmax), ceil(hp/hpmax*100)))
+        plate.health.text:SetFormattedText("%s - %s | %s%%", Abbreviate(rhp), Abbreviate(rhpmax), ceil(hp/hpmax*100))
       elseif setting == "curmaxpercs" and hasdata and rhp then
-        plate.health.text:SetText(string.format("%s / %s | %s%%", Abbreviate(rhp), Abbreviate(rhpmax), ceil(hp/hpmax*100)))
+        plate.health.text:SetFormattedText("%s / %s | %s%%", Abbreviate(rhp), Abbreviate(rhpmax), ceil(hp/hpmax*100))
       elseif setting == "deficit" and rhp then
-        plate.health.text:SetText(string.format("-%s" .. (hasdata and "" or "%%"), Abbreviate(rhpmax - rhp)))
+        plate.health.text:SetFormattedText("-%s" .. (hasdata and "" or "%%"), Abbreviate(rhpmax - rhp))
       else -- "percent" as fallback
-        plate.health.text:SetText(string.format("%s%%", ceil(hp/hpmax*100)))
+        plate.health.text:SetFormattedText("%s%%", ceil(hp/hpmax*100))
       end
     else
       plate.health.text:SetText()
@@ -1313,19 +1308,22 @@ nameplates:RegisterEvent("PLAYER_GUILD_UPDATE")
       for i = 1, 16 do debuffDisplayBuf[i].effect = nil end
       if unitstr then
         local filter = cfg.owndebuffs and "HARMFUL|PLAYER" or "HARMFUL"
-        local auras = C_UnitAuras.GetUnitAuras(unitstr, filter)
         local now = GetTime()
-        for _, aura in ipairs(auras) do
-          if debuffCount >= 16 then break end
+        -- positional UnitAura writes straight into the reusable buffer, so the
+        -- per-plate scan allocates nothing (no per-aura table, no result array)
+        local i = 1
+        while debuffCount < 16 do
+          local aname, icon, count, dispelType, duration, expirationTime = C_UnitAuras.UnitAura(unitstr, i, filter)
+          if not aname then break end
           debuffCount = debuffCount + 1
-          local timeleft = (aura.expirationTime and aura.expirationTime > 0) and (aura.expirationTime - now) or nil
           local b = debuffDisplayBuf[debuffCount]
-          b.effect = aura.name
-          b.texture = aura.icon
-          b.stacks = aura.applications
-          b.dtype = aura.dispelName
-          b.duration = aura.duration
-          b.timeleft = timeleft
+          b.effect = aname
+          b.texture = icon
+          b.stacks = count
+          b.dtype = dispelType
+          b.duration = duration
+          b.timeleft = (expirationTime and expirationTime > 0) and (expirationTime - now) or nil
+          i = i + 1
         end
       end
       for i = 1, 16 do
@@ -1548,7 +1546,7 @@ nameplates:RegisterEvent("PLAYER_GUILD_UPDATE")
     -- otherwise an NPC sharing a name with a known player flips wait_for_scan
     -- off here, then OnDataChanged re-sets it, every frame until the mob scan
     -- lands.
-    if nameplate.wait_for_scan and GetUnitInfo(name, true, nameplate.cache.player) then
+    if nameplate.wait_for_scan and not nameplate.cache.minion and GetUnitInfo(name, true, nameplate.cache.player) then
       nameplate.wait_for_scan = nil
       update = true
     end
@@ -1697,7 +1695,7 @@ nameplates:RegisterEvent("PLAYER_GUILD_UPDATE")
       rounded = floor(remaining * 100)
       if castbar.lastTextTick ~= rounded then
         castbar.lastTextTick = rounded
-        castbar.text:SetText(string.format("%.2f", remaining))
+        castbar.text:SetFormattedText("%.2f", remaining)
       end
     end
   end

modules/panel.lua

@@ -418,8 +418,13 @@ pfUI:RegisterModule("panel", function()
             local repPercent = floor(cur / max * 100)
             if repPercent < 100 then
               local _, _, _, hex = GetColorGradient(repPercent/100)
+              local link = GetInventoryItemLink("player", id)
+              local texture = GetInventoryItemTexture("player", id)
+              if texture then
+                link = CreateSimpleTextureMarkup(texture, 24) .. " " .. link
+              end
               itemLines[table.getn(itemLines)+1] = {
-                GetInventoryItemLink("player", id),
+                link,
                 string.format("%s%s%%|r", hex, repPercent)
               }
             end
@@ -428,8 +433,7 @@ pfUI:RegisterModule("panel", function()
         if totalRep > 0 then
           GameTooltip:ClearLines()
           GameTooltip_SetDefaultAnchor(GameTooltip, this)
-          GameTooltip:SetText("|cff555555"..(string.gsub(REPAIR_COST,":","")).."|r")
-          SetTooltipMoney(GameTooltip, totalRep)
+          GameTooltip:AddLine(REPAIR_COST.." " .. CreateGoldString(totalRep), 0.3333, 0.3333, 0.3333)
           for _,line in ipairs(itemLines) do
             GameTooltip:AddDoubleLine(line[1],line[2])
           end

modules/screenshot.lua

@@ -119,7 +119,7 @@ pfUI:RegisterModule("screenshot", function ()
   end
 
   function pfUI.screenshot:CHAT_MSG_SYSTEM()
-    local _,_, standing, rep = string.find(arg1, FACTION_STANDING_CHANGEDregex)
+    local standing, rep = string.match(arg1, FACTION_STANDING_CHANGEDregex)
     if standing and rep then
       local dt = date("%a, %b %d, %Y %X")
       local loc = string.format("%s - %s",GetRealZoneText(),GetSubZoneText())
@@ -150,13 +150,13 @@ pfUI:RegisterModule("screenshot", function ()
   end
 
   function pfUI.screenshot:CHAT_MSG_LOOT()
-    local _,_, item, amount = string.find(arg1, LOOT_ITEM_SELF_MULTIPLEregex)
+    local item, amount = string.match(arg1, LOOT_ITEM_SELF_MULTIPLEregex)
     if amount then -- ignore stacks
       return
     else
-      _,_, item = string.find(arg1, LOOT_ITEM_SELFregex)
+      item = string.match(arg1, LOOT_ITEM_SELFregex)
       if item then
-        local _, _, itemColor, itemString, itemName = string.find(item, "^(|c%x+)|H(.+)|h(%[.+%])")
+        local itemColor, itemString, itemName = string.match(item, "^(|c%x+)|H(.+)|h(%[.+%])")
         local quality = color2quality[itemColor]
         if quality and quality >= tonumber(C.screenshot.loot) then
           local dt = date("%a, %b %d, %Y %X")

modules/socialmod.lua

@@ -97,20 +97,20 @@ pfUI:RegisterModule("socialmod", function ()
 
           if friendName then
             friendName:SetText(cname)
-            friendLoc:SetText(format(TEXT(FRIENDS_LIST_TEMPLATE), zone, status))
+            friendLoc:SetFormattedText(TEXT(FRIENDS_LIST_TEMPLATE), zone, status)
           else
-            friendLoc:SetText(format(TEXT(FRIENDS_LIST_TEMPLATE), cname, zone, status))
+            friendLoc:SetFormattedText(TEXT(FRIENDS_LIST_TEMPLATE), cname, zone, status)
           end
 
-          friendInfo:SetText(format(TEXT(FRIENDS_LEVEL_TEMPLATE), info.level, info.className))
+          friendInfo:SetFormattedText(TEXT(FRIENDS_LEVEL_TEMPLATE), info.level, info.className)
           caption:SetVertexColor(1,1,1,.9)
           friendInfo:SetVertexColor(1,1,1,.9)
         else
           if playerdb[name] and playerdb[name].cname and playerdb[name].level and playerdb[name].lastseen then
-            caption:SetText(format(TEXT(FRIENDS_LIST_OFFLINE_TEMPLATE), playerdb[name].cname))
-            friendInfo:SetText(format(TEXT(FRIENDS_LEVEL_TEMPLATE), playerdb[name].level, playerdb[name].lastseen))
+            caption:SetFormattedText(TEXT(FRIENDS_LIST_OFFLINE_TEMPLATE), playerdb[name].cname)
+            friendInfo:SetFormattedText(TEXT(FRIENDS_LEVEL_TEMPLATE), playerdb[name].level, playerdb[name].lastseen)
           else
-            caption:SetText(format(TEXT(FRIENDS_LIST_OFFLINE_TEMPLATE), name.."|r"))
+            caption:SetFormattedText(TEXT(FRIENDS_LIST_OFFLINE_TEMPLATE), name.."|r")
             friendInfo:SetText(TEXT(UNKNOWN))
           end
 
@@ -131,9 +131,9 @@ pfUI:RegisterModule("socialmod", function ()
       local playerguild = GetGuildInfo("player")
 
       if num + 1 >= MAX_WHOS_FROM_SERVER then
-        WhoFrameTotals:SetText("|cffffffff" .. format(GetText("WHO_FRAME_TOTAL_TEMPLATE", nil, num), max).."  |cffaaaaaa"..format(WHO_FRAME_SHOWN_TEMPLATE, MAX_WHOS_FROM_SERVER))
+        WhoFrameTotals:SetFormattedText("|cffffffff" .. GetText("WHO_FRAME_TOTAL_TEMPLATE", nil, num) .. "  |cffaaaaaa" .. WHO_FRAME_SHOWN_TEMPLATE, max, MAX_WHOS_FROM_SERVER)
       else
-        WhoFrameTotals:SetText("|cffffffff" .. format(GetText("WHO_FRAME_TOTAL_TEMPLATE", nil, num), num).."  |cffaaaaaa"..format(WHO_FRAME_SHOWN_TEMPLATE, num))
+        WhoFrameTotals:SetFormattedText("|cffffffff" .. GetText("WHO_FRAME_TOTAL_TEMPLATE", nil, num) .. "  |cffaaaaaa" .. WHO_FRAME_SHOWN_TEMPLATE, num, num)
       end
 
       for i=1, WHOS_TO_DISPLAY do

modules/swingtimer.lua

@@ -592,10 +592,10 @@ pfUI:RegisterModule("swingtimer", function ()
       end
       pfUI.swingtimer.mainhand:SetStatusBarColor(curR, curG, curB, mhA)
       if sw_showtext then
-        pfUI.swingtimer.mainhand.text:SetText(string.format("%.1f", math.floor(S.mhTimer * 10) / 10))
+        pfUI.swingtimer.mainhand.text:SetFormattedText("%.1f", math.floor(S.mhTimer * 10) / 10)
       end
       if sw_showspeed and S.mhSpeed > 0 then
-        pfUI.swingtimer.mainhand.speed:SetText(string.format("%.2f", S.mhSpeed))
+        pfUI.swingtimer.mainhand.speed:SetFormattedText("%.2f", S.mhSpeed)
       end
       anyActive = true
     end
@@ -626,10 +626,10 @@ pfUI:RegisterModule("swingtimer", function ()
         end
       end
       if sw_showtext then
-        pfUI.swingtimer.offhand.text:SetText(string.format("%.1f", math.floor(S.ohTimer * 10) / 10))
+        pfUI.swingtimer.offhand.text:SetFormattedText("%.1f", math.floor(S.ohTimer * 10) / 10)
       end
       if sw_showspeed and S.ohSpeed > 0 then
-        pfUI.swingtimer.offhand.speed:SetText(string.format("%.2f", S.ohSpeed))
+        pfUI.swingtimer.offhand.speed:SetFormattedText("%.2f", S.ohSpeed)
       end
       anyActive = true
     elseif not sw_showoh then
@@ -668,9 +668,9 @@ pfUI:RegisterModule("swingtimer", function ()
         end
         if sw_showtext then
           if remaining <= 0.5 then
-            pfUI.swingtimer.ranged.text:SetText(string.format("%.1f", math.floor(remaining * 10) / 10))
+            pfUI.swingtimer.ranged.text:SetFormattedText("%.1f", math.floor(remaining * 10) / 10)
           else
-            pfUI.swingtimer.ranged.text:SetText(string.format("%.1f", math.floor((remaining - 0.5) * 10) / 10))
+            pfUI.swingtimer.ranged.text:SetFormattedText("%.1f", math.floor((remaining - 0.5) * 10) / 10)
           end
         end
       else
@@ -683,11 +683,11 @@ pfUI:RegisterModule("swingtimer", function ()
         pfUI.swingtimer.ranged.right:Hide()
         pfUI.swingtimer.ranged.warn:Hide()
         if sw_showtext then
-          pfUI.swingtimer.ranged.text:SetText(string.format("%.1f", math.floor(remaining * 10) / 10))
+          pfUI.swingtimer.ranged.text:SetFormattedText("%.1f", math.floor(remaining * 10) / 10)
         end
       end
       if sw_showspeed and S.raSpeed > 0 then
-        pfUI.swingtimer.ranged.speed:SetText(string.format("%.2f", S.raSpeed))
+        pfUI.swingtimer.ranged.speed:SetFormattedText("%.2f", S.raSpeed)
       end
       local raProgress = 1 - (S.raTimer / S.raTimerMax)
       local raMarkerX = raProgress * sw_width

modules/tooltip.lua

@@ -166,9 +166,9 @@ pfUI:RegisterModule("tooltip", function ()
     end
 
     if C.tooltip.alwaysperc == "0" and ( estimated or hpmax > 100 or round(hpmax/100*hp) ~= hp ) then
-      pfUI.tooltipStatusBar.HP:SetText(string.format("%s / %s", Abbreviate(rhp), Abbreviate(rhpmax)))
+      pfUI.tooltipStatusBar.HP:SetFormattedText("%s / %s", Abbreviate(rhp), Abbreviate(rhpmax))
     elseif hpmax > 0 then
-      pfUI.tooltipStatusBar.HP:SetText(string.format("%s%%", ceil(hp/hpmax*100)))
+      pfUI.tooltipStatusBar.HP:SetFormattedText("%s%%", ceil(hp/hpmax*100))
     else
       pfUI.tooltipStatusBar.HP:SetText("")
     end

modules/tracking.lua

@@ -3,56 +3,15 @@ pfUI:RegisterModule("tracking", function ()
   MINIMAP_TRACKING_FRAME:UnregisterAllEvents()
   MINIMAP_TRACKING_FRAME:Hide()
 
-  local function HasEntries(tbl)
-    for _ in pairs(tbl) do
-      return true
-    end
-    return nil
-  end
-
   local rawborder, border = GetBorderSize()
   local size = tonumber(C.appearance.minimap.tracking_size)
   local pulse = C.appearance.minimap.tracking_pulse == "1"
 
-  -- Tracking spells identified by SpellID + expected icon path.
-  -- SpellID is the primary identifier (stable, locale-independent).
-  -- Icon path is used as secondary confirmation when scanning the spellbook.
-  local knownTrackingSpells = {
-    any = {
-      { id = 2481,  icon = "Racial_Dwarf_FindTreasure"       }, -- Find Treasure
-      { id = 2580,  icon = "Spell_Nature_Earthquake"          }, -- Find Minerals
-      { id = 2383,  icon = "INV_Misc_Flower_02"               }, -- Find Herbs (Rank 1)
-      { id = 8387,  icon = "INV_Misc_Flower_02"               }, -- Find Herbs (Rank 2)
-      { id = 52917, icon = "INV_TradeSkillItem_03"            }, -- Find Trees (TurtleWow)
-    },
-    HUNTER = {
-      { id = 1494,  icon = "Ability_Tracking"                 }, -- Track Beasts
-      { id = 19883, icon = "Spell_Holy_PrayerOfHealing"       }, -- Track Humanoids
-      { id = 19884, icon = "Spell_Shadow_DarkSummoning"       }, -- Track Undead
-      { id = 19885, icon = "Ability_Stealth"                  }, -- Track Hidden
-      { id = 19880, icon = "Spell_Frost_SummonWaterElemental" }, -- Track Elementals
-      { id = 19878, icon = "Spell_Shadow_SummonFelHunter"     }, -- Track Demons
-      { id = 19882, icon = "Ability_Racial_Avatar"            }, -- Track Giants
-      { id = 19879, icon = "INV_Misc_Head_Dragon_01"          }, -- Track Dragonkin
-    },
-    PALADIN = {
-      { id = 5502,  icon = "Spell_Holy_SenseUndead"           }, -- Sense Undead
-    },
-    WARLOCK = {
-      { id = 5500,  icon = "Spell_Shadow_Metamorphosis"       }, -- Sense Demons
-    },
-    DRUID = {
-      { id = 5225,  icon = "Ability_Tracking"                 }, -- Track Humanoids (Cat Form only)
-    },
-  }
-
-  -- Build a flat lookup: spellId -> entry, for fast spellbook matching
-  local spellIdLookup = {}
-  for _, entries in pairs(knownTrackingSpells) do
-    for _, entry in ipairs(entries) do
-      spellIdLookup[entry.id] = entry
-    end
-  end
+  -- Tracking spells come from ClassicAPI's native GetNumTrackingTypes /
+  -- GetTrackingInfo (see the DLL's docs/API.md "Tracking"). The DLL
+  -- enumerates them straight from the spellbook by tracking-aura effect,
+  -- so there is no spell table to maintain here and server-custom trackers
+  -- (e.g. Turtle's Find Trees) are picked up automatically.
 
   local state = {
     texture = nil,
@@ -128,50 +87,24 @@ pfUI:RegisterModule("tracking", function ()
   end)
 
   function pfUI.tracking:RefreshSpells()
-    local playerClass = UnitClassBase("player")
-    local isCatForm = pfUI.tracking:PlayerIsDruidInCatForm(playerClass)
+    state.spells = {}
+    if not GetNumTrackingTypes then return end
 
-    -- Build set of valid SpellIDs for this class
-    local validIds = {}
-    for _, entry in ipairs(knownTrackingSpells.any) do
-      validIds[entry.id] = true
-    end
-    if knownTrackingSpells[playerClass] then
-      for _, entry in ipairs(knownTrackingSpells[playerClass]) do
-        validIds[entry.id] = true
-      end
-    end
+    -- Druid Track Humanoids (5225) only casts in Cat Form. Hide it out of
+    -- form so the menu never offers a tracker that would fail to cast.
+    local isCatForm = pfUI.tracking:PlayerIsDruidInCatForm(UnitClassBase("player"))
 
-    -- Druids only get Track Humanoids in Cat Form
-    if playerClass == "DRUID" and not isCatForm then
-      validIds[5225] = nil
-    end
-
-    -- Scan spellbook: match by icon path, confirm SpellID is valid for this class
-    for tabIndex = 1, GetNumSpellTabs() do
-      local _, _, offset, numSpells = GetSpellTabInfo(tabIndex)
-      for spellIndex = offset + 1, offset + numSpells do
-        local spellTexture = GetSpellTexture(spellIndex, BOOKTYPE_SPELL)
-        local spellName    = GetSpellName(spellIndex, BOOKTYPE_SPELL)
-
-        if pfUI.tracking.invalidSpells[spellName] then
-          spellTexture = nil
-        end
-
-        if spellTexture then
-          local lowerTexture = string.lower(spellTexture)
-          for spellId, entry in pairs(spellIdLookup) do
-            if validIds[spellId] and not state.spells[spellId]
-              and strfind(lowerTexture, string.lower(entry.icon)) then
-              state.spells[spellId] = {
-                index   = spellIndex,
-                name    = spellName,
-                texture = spellTexture,
-                spellId = spellId,
-              }
-            end
-          end
-        end
+    for i = 1, GetNumTrackingTypes() do
+      local name, texture, _, _, spellId = GetTrackingInfo(i)
+      local castable = not (spellId == 5225 and not isCatForm)
+      if name and texture and castable
+        and not pfUI.tracking.invalidSpells[name] then
+        state.spells[i] = {
+          index   = i,        -- tracking index, passed to SetTracking()
+          name    = name,
+          texture = texture,
+          spellId = spellId,
+        }
       end
     end
   end
@@ -187,7 +120,7 @@ pfUI:RegisterModule("tracking", function ()
     elseif not texture then
       state.texture = nil
 
-      if pulse and HasEntries(state.spells) then
+      if pulse and next(state.spells) ~= nil then
         pfUI.tracking.pulse = true
         pfUI.tracking.icon:SetTexture("Interface\\Icons\\INV_Misc_QuestionMark")
         pfUI.tracking.icon:SetVertexColor(1,1,1,1)
@@ -217,7 +150,7 @@ pfUI:RegisterModule("tracking", function ()
           checked = spell.texture == state.texture,
           arg1 = spell,
           func = function (arg1)
-            CastSpell(arg1.index, BOOKTYPE_SPELL)
+            SetTracking(arg1.index)
             CloseDropDownMenus()
           end
         })

modules/unitxp.lua

@@ -134,7 +134,7 @@ pfUI:RegisterModule("unitxp", function ()
           end
 
           this.text:SetTextColor(r, g, b, 1)
-          this.text:SetText(string.format("%.1f%s", distance, suffix))
+          this.text:SetFormattedText("%.1f%s", distance, suffix)
           this.text:Show()
         end)
 
@@ -206,7 +206,7 @@ pfUI:RegisterModule("unitxp", function ()
             end
 
             f.text:SetTextColor(r, g, b, 1)
-            f.text:SetText(string.format("%.1f%s", distance, suffix))
+            f.text:SetFormattedText("%.1f%s", distance, suffix)
           end)
         end
         pfUI.uf.target.distanceIndicator = pfRangeDisplay

modules/xpbar.lua

@@ -236,7 +236,7 @@ end
       local xpperc = round(xp / xpmax * 100)
       local experc = ex and round(ex / xpmax * 100) or 0
       if ex then text = "%s: %s%% (%s%% %s)" end
-      self.bar.text:SetText(string.format(text, T["Experience"], xpperc, experc, T["Rested"]))
+      self.bar.text:SetFormattedText(text, T["Experience"], xpperc, experc, T["Rested"])
 
       self.tick = GetTime() + self.timeout
       if event == "UPDATE_EXHAUSTION" and GameTooltip:IsOwned(self) then
@@ -254,7 +254,7 @@ end
 
       local text = "%s: %s%%"
       local xpperc = nextXP and nextXP ~= 0 and round(currXP / nextXP * 100) or 0
-      self.bar.text:SetText(string.format(text, T["Pet Experience"], xpperc))
+      self.bar.text:SetFormattedText(text, T["Pet Experience"], xpperc)
 
       self.tick = GetTime() + self.timeout
       return
@@ -282,7 +282,7 @@ end
         local text = "%s: %s%% (%s)"
         local perc = round(barValue / barMax * 100)
         local standing = GetText("FACTION_STANDING_LABEL"..standingID, gender)
-        self.bar.text:SetText(string.format(text, name, perc, standing))
+        self.bar.text:SetFormattedText(text, name, perc, standing)
 
         self.tick = GetTime() + self.timeout
         return

pfUI.lua

@@ -3,6 +3,10 @@ function SlashCmdList.RELOAD(msg, editbox)
   ReloadUI()
 end
 
+if pfUI_disabled then return end
+
+local addonName = ...
+
 SLASH_PFUI1 = '/pfui'
 function SlashCmdList.PFUI(msg, editbox)
   pfUI.gui:SetShown(not pfUI.gui:IsShown())
@@ -13,7 +17,7 @@ function SlashCmdList.GM(msg, editbox)
   ToggleHelpFrame(1)
 end
 
-pfUI = CreateFrame("Frame", nil, UIParent)
+local pfUI = CreateFrame("Frame", addonName, UIParent)
 pfUI:RegisterEvent("ADDON_LOADED")
 
 -- setup bootvar
@@ -23,7 +27,7 @@ do
   -- ClassicAPI dependency check.
   -- pfUI relies pervasively on the modern C_* / SuperWoW / nameplate / focus
   -- API surface that ClassicAPI polyfills, so presence is required.
-  local PFUI_CLASSIC_API_MIN     = 10906  -- (X*10000 + Y*100 + Z)
+  local PFUI_CLASSIC_API_MIN     = 11301  -- (X*10000 + Y*100 + Z)
   local PFUI_CLASSIC_API_LATEST  = PFUI_CLASSIC_API_MIN
   local PFUI_CLASSIC_API_WEBSITE = "https://github.com/brues-code/ClassicAPI"
   local PFUI_CLASSIC_API_LATEST_URL = PFUI_CLASSIC_API_WEBSITE .. "/releases/latest"
@@ -86,14 +90,13 @@ do
   end
 end
 
--- initialize saved variables
-pfUI_playerDB = {}
-pfUI_config = {}
-pfUI_init = {}
-pfUI_profiles = {}
-pfUI_addon_profiles = {}
-pfUI_cache = {}
-pfUI_throttle = {}
+pfUI_playerDB = pfUI_playerDB or {}
+pfUI_config = pfUI_config or {}
+pfUI_init = pfUI_init or {}
+pfUI_profiles = pfUI_profiles or {}
+pfUI_addon_profiles = pfUI_addon_profiles or {}
+pfUI_cache = pfUI_cache or {}
+pfUI_throttle = pfUI_throttle or {}
 
 -- localization
 pfUI_locale = {}
@@ -118,35 +121,24 @@ pfUI.env = {}
 -- the flag; one that lacks it should drop the flag and get the safe fallback.
 pfUI.handlesHookScript = true
 
-if not pfUI.disabled then
-  pfUI.events = Mixin({}, CallbackRegistryMixin)
-  pfUI.events:OnLoad()
-  pfUI.events:SetUndefinedEventsAllowed(true)
-end
+pfUI.events = Mixin({}, CallbackRegistryMixin)
+pfUI.events:OnLoad()
+pfUI.events:SetUndefinedEventsAllowed(true)
 
 -- check if macro addons are loaded (disables macrotweak/macroscan)
 function pfUI:MacroAddonsLoaded()
   return IsAddOnLoaded("Supermacro") or IsAddOnLoaded("SuperCleveRoidMacros") or IsAddOnLoaded("UltimaMacros")
 end
 
--- detect current addon path
-local tocs = { "", "-master", "-tbc", "-wotlk" }
-for _, name in pairs(tocs) do
-  local current = string.format("pfUI%s", name)
-  local title = C_AddOns.GetAddOnName(current)
-  if title then
-    pfUI.name = current
-    pfUI.path = "Interface\\AddOns\\" .. current
-    break
-  end
-end
+pfUI.name = addonName
+pfUI.path = "Interface\\AddOns\\" .. addonName
 
 -- handle/convert media dir paths
 pfUI.media = setmetatable({}, { __index = function(tab,key)
   local value = tostring(key)
-  if strfind(value, "img:") then
+  if value:find("img:") then
     value = string.gsub(value, "img:", pfUI.path .. "\\img\\")
-  elseif strfind(value, "font:") then
+  elseif value:find("font:") then
     value = string.gsub(value, "font:", pfUI.path .. "\\fonts\\")
   else
     value = string.gsub(value, "Interface\\AddOns\\pfUI\\", pfUI.path .. "\\")
@@ -155,9 +147,7 @@ pfUI.media = setmetatable({}, { __index = function(tab,key)
   return value
 end})
 
--- cache client version
-local _, _, _, client = GetBuildInfo()
-pfUI.client = client or 11200
+pfUI.client = INTERFACE_VERSION
 
 -- setup pfUI namespace
 setmetatable(pfUI.env, {__index = getfenv(0)})
@@ -391,14 +381,13 @@ function pfUI:CheckNewModules()
 end
 
 local function BackwardsCompatRegister(func, arg3)
-  if arg3 and type(func) == "string" and type(arg3) == "function" and string.find(func, "vanilla") then
+  if arg3 and type(func) == "string" and type(arg3) == "function" and func:find("vanilla") then
     return arg3
   end
   return func
 end
 
 function pfUI:RegisterModule(name, func, arg3)
-  if pfUI.disabled then return end
   if pfUI.module[name] then return end
   func = BackwardsCompatRegister(func, arg3)
   pfUI.module[name] = func
@@ -409,7 +398,6 @@ function pfUI:RegisterModule(name, func, arg3)
 end
 
 function pfUI:RegisterSkin(name, func, arg3)
-  if pfUI.disabled then return end
   if pfUI.skin[name] then return end
   func = BackwardsCompatRegister(func, arg3)
   pfUI.skin[name] = func
@@ -430,7 +418,6 @@ function pfUI:LoadSkin(s)
 end
 
 pfUI:SetScript("OnEvent", function()
-  if pfUI.disabled then return end
 
   -- make sure to initialize and set our fonts
   -- each time an addon got loaded but only
@@ -444,7 +431,7 @@ pfUI:SetScript("OnEvent", function()
     -- "@project-version@" until release tooling substitutes it — mark those
     -- explicitly as "dev" instead of pretending they're a real numbered build.
     local raw = tostring(GetAddOnMetadata(pfUI.name, "Version"))
-    if strfind(raw, "@") then
+    if raw:find("@") then
       pfUI.version.major, pfUI.version.minor, pfUI.version.fix = 0, 0, 0
       pfUI.version.string = "dev"
     else
@@ -577,4 +564,4 @@ function pfUI.SetupCVars()
     COMBAT_TEXT_SHOW_HONOR_GAINED = "1"
   end
   UIParentLoadAddOn("Blizzard_CombatText")
-end
+end

pfUI.toc

@@ -8,6 +8,8 @@
 ## SavedVariablesPerCharacter: pfUI_config, pfUI_init, pfUI_playerDB
 ## X-Website: https://github.com/brues-code/pfUI
 
+API_Check.lua
+
 pfUI.lua
 
 init\env.xml

skins/blizzard/character.lua

@@ -295,9 +295,8 @@ pfUI:RegisterSkin("Character", function ()
           if faction and faction.reaction and faction.reaction < 8 then
             local repLeft = faction.nextReactionThreshold - faction.currentStanding
             if repLeft > 1 then
-              local text = standing:GetText() .. string.format(" (%d)", repLeft)
-              standing:SetText(text)
-              standing:GetParent().standingText = text
+              standing:SetFormattedText("%s (%d)", standing:GetText(), repLeft)
+              standing:GetParent().standingText = standing:GetText()
             end
           end
         end

skins/blizzard/inspect.lua

@@ -125,7 +125,7 @@ pfUI:RegisterSkin("Inspect", function ()
         local guild, title = GetGuildInfo(InspectFrame.unit)
         if guild then
           InspectGuildText:SetPoint("TOP", InspectLevelText, "BOTTOM", 0, -1)
-          InspectGuildText:SetText(format(TEXT(GUILD_TITLE_TEMPLATE), title, guild))
+          InspectGuildText:SetFormattedText(TEXT(GUILD_TITLE_TEMPLATE), title, guild)
           InspectGuildText:Show()
         else
           InspectGuildText:SetText("")