[Resike]

Originally Posted by zork That is my point. When using the SecureAuraHeaderTemplate something is triggering an update on any aura attribute for you which makes is possible to have a script for OnAttributeChanged?

I'll give you a more detailed code example.

The attribute is not on the header frame, but on the frame which gets created BY the header frame (SecureActionButtonTemplate), and it has a index and filter attribute changes every time the unit's buffs get updated:

-- Buffs Header
    frame.buffs = CreateFrame("Frame", "ZPerl2"..name.."BuffFrame", frame, "SecureAuraHeaderTemplate")
    frame.buffs:SetPoint("TopLeft", frame, "BottomLeft", 4, -1)
 
    frame.buffs:SetAttribute("useparent-unit", true)
    frame.buffs:SetAttribute("filter", "HELPFUL")
    frame.buffs:SetAttribute("template", "SecureActionButtonTemplate")
    frame.buffs:SetAttribute("minWidth", 24)
    frame.buffs:SetAttribute("minHeight", 24)
    frame.buffs:SetAttribute("separateOwn", 0)
 
    frame.buffs:SetAttribute("point", "TOPLEFT")
    frame.buffs:SetAttribute("xOffset", 24)
    frame.buffs:SetAttribute("yOffset", 0)
    frame.buffs:SetAttribute("wrapAfter", 8)
    frame.buffs:SetAttribute("wrapXOffset", 0)
    frame.buffs:SetAttribute("wrapYOffset", -24)
    frame.buffs:SetAttribute("maxWraps", 5)
 
    frame.buffs:SetAttribute("sortMethod", "INDEX") -- INDEX or NAME or TIME
    frame.buffs:SetAttribute("sortDir", "+") -- - to reverse
 
    frame.buffs:SetAttribute("style-width", 24)
    frame.buffs:SetAttribute("style-height", 24)
    frame.buffs:SetAttribute("style-scale", 1)
 
    local function CreateBuffFrame(header, frameName)
        local buff = _G[frameName]
 
        buff:RegisterForClicks("RightButtonUp")
        --buff.unit = header:GetParent():GetAttribute("unit") or frame.unit
        --buff.filter = "HELPFUL"
 
        buff.texture = buff:CreateTexture(nil, "Background")
        buff.texture:SetAllPoints(buff)
 
        buff.cooldown = CreateFrame("Cooldown", nil, buff, "CooldownFrameTemplate")
        buff.cooldown:SetReverse(true)
        buff.cooldown:SetDrawEdge(false)
        buff.cooldown:SetDrawBling(false)
        -- Blizzard
        buff.cooldown:SetHideCountdownNumbers(true)
        -- OmniCC
        buff.cooldown.noCooldownCount = true
 
        buff.cooldown:SetAllPoints(buff)
 
        buff.stack = buff:CreateFontString(nil, "Artwork")
        buff.stack:SetFont("Fonts\\ARIALN.TTF", 9, "Outline")
        buff.stack:SetPoint("BottomRight", buff, "BottomRight", 0, 2)
        buff.stack:SetJustifyH("Center")
        buff.stack:SetJustifyV("Center")
        buff.stack:SetWordWrap(false)
 
        buff:SetScript("OnAttributeChanged", function(self, name, value)
            --print(self:GetName(), name, value)
            if name == "index" then
                --print(self:GetName(), name, value)
                if value then
                    local name, rank, icon, count, debuffType, duration, expirationTime, unitCaster, canStealOrPurge, shouldConsolidate, spellId, canApplyAura, isBossDebuff, isCastByPlayer = UnitAura(header:GetParent():GetAttribute("unit"), header:GetAttribute("filter"))
                    if self.index ~= value or self.spellId ~= spellId or self.count ~= count or self.expirationTime ~= expirationTime then
                        --[[if self.index ~= value then
                            print("INDEX", name, self.index, value)
                        elseif self.spellId ~= spellId then
                            print("ID", value, name, self.spellId, spellId)
                        elseif self.count ~= count then
                            print("COUNT", value, name, self.count, count)
                        elseif self.expirationTime ~= expirationTime then
                            print("EXP", value, name, self.expirationTime, expirationTime)
                        end]]
 
                        if type(module.UpdateBuff) == "function" then
                            module:UpdateBuff(self, value)
                        end
                    end
                else
                    self.index = nil
                    self.spellId = nil
                    self.count = nil
                    self.expirationTime = nil
                end
            end
        end)
 
        buff:SetScript("OnEnter", function(self)
            GameTooltip:SetOwner(self, "ANCHOR_BOTTOMRIGHT")
            GameTooltip:SetFrameLevel(self:GetFrameLevel() + 2)
            local s = self.slotID or 0
            if s == 16 or s == 17 then
                GameTooltip:SetInventoryItem(header:GetParent():GetAttribute("unit"), s)
            else
                GameTooltip:SetUnitAura(header:GetParent():GetAttribute("unit"), self:GetID(), header:GetAttribute("filter"))
            end
 
            self:SetScript("OnUpdate", function(self, elapsed)
                self.time = (self.time or 0) + elapsed
                if self.time < 0.5 then
                    return
                end
                self.time = 0
 
                if GameTooltip:IsOwned(self) then
                    local s = self.slotID or 0
                    if s == 16 or s == 17 or s == 18 then
                        GameTooltip:SetInventoryItem(header:GetParent():GetAttribute("unit"), s)
                    else
                        GameTooltip:SetUnitAura(header:GetParent():GetAttribute("unit"), self:GetID(), header:GetAttribute("filter"))
                    end
                end
            end)
        end)
        buff:SetScript("OnLeave", function(self)
            self:SetScript("OnUpdate", nil)
            GameTooltip:Hide()
        end)
 
        return buff
    end
 
    frame.buffs:SetAttribute("initialConfigFunction", [[
        local header = self:GetParent()
 
        self:SetHeight(header:GetAttribute("style-height"))
        self:SetWidth(header:GetAttribute("style-width"))
        self:SetScale(header:GetAttribute("style-scale"))
 
        self:SetAttribute("type2", "cancelaura")
 
        self:SetAttribute("isHeaderDriven", true)
 
        header:CallMethod("initialConfigFunction", self:GetName())
    ]])
 
    frame.buffs.initialConfigFunction = CreateBuffFrame
 
    frame.buffs:Show()

It looks kinky to create so many functions for every buffs, but even in a 5 man party we are talking about 400 unit and 400 potential pet buffs and god knows how many UNIT_AURA triggers. And for my initial test this method is better performace wise.

Maybe the thread's name is missleading. My bad.