Request: Casting (Hurtful) status trigger

[Zwikkry]

Currently, when using the "Casting" status trigger, even mounting up toggles the alpha of the HUD. While some people might not mind this, I would love it if you could add a "Casting (Hurtful)" status trigger. I've already got this working locally by tweaking the Statuses/Casting.lua:OnEvent (line 8) with the following:

local function OnEvent(_, event)
    local isCasting = false
    local spell, _, _, _, _, _, _, _, spellID = UnitCastingInfo("player")
    local isHarmfulSpell = false

    if spell then
        isHarmfulSpell = C_Spell.IsSpellHarmful(spellID)
    end

    if event == "UNIT_SPELLCAST_START" then
        if isHarmfulSpell then
            isCasting = true
        end
    elseif event == "UNIT_SPELLCAST_STOP" then
        isCasting = false
    elseif event == "UNIT_SPELLCAST_CHANNEL_START" then
        if isHarmfulSpell then
            isCasting = true
        end
    elseif event == "UNIT_SPELLCAST_CHANNEL_STOP" then
        isCasting = false
    end

    CR:Fire("PLAYER_CASTING_UPDATE", isCasting, eventDelay)
    addonTable.events["PLAYER_CASTING_UPDATE"] = isCasting
end

This does the job, and it only shows up while casting damaging (hurtful) attacks. It's shoddy code, so you might want to look into doing it differently.