Beta API discussion

[Haleth]

Zork; That also sets the texture but still returns nil.

I've looked at it some further and it seems to be some sort of problem with OnEvent. This is my modified code with a few tests in it:

local F, C, L = unpack(select(2, ...))
 
if C.general.buffreminder == false then return end
 
local class = select(2, UnitClass("Player"))
local buffs = C.selfbuffs[class]
 
if buffs and buffs[1] then
    local frame = CreateFrame("Frame", nil, UIParent)
    local a1, p, a2, x, y = unpack(C.unitframes.target)
    frame:SetPoint(a1, p, a2, x, y+90)
    frame:SetSize(57, 57)
    
    frame.icon = frame:CreateTexture(nil, "ARTWORK")
    frame.icon:SetTexCoord(.08, .92, .08, .92)
    frame.icon:SetAllPoints(frame)
    frame.icon:SetTexture("Interface\\Icons\\Spell_Holy_InnerFire")
    print(frame.icon:GetTexture()) -- returns texture
 
    F.CreateBG(frame)
 
    frame:Hide()
    
    frame:RegisterEvent("UNIT_AURA")
    frame:RegisterEvent("PLAYER_LOGIN")
    frame:RegisterEvent("PLAYER_REGEN_ENABLED")
    frame:RegisterEvent("PLAYER_REGEN_DISABLED")
    
    frame:SetScript("OnEvent", function(self, event)
        if (event == "PLAYER_LOGIN" or event == "LEARNED_SPELL_IN_TAB") then
            for i, buff in pairs(buffs) do
                local name = GetSpellInfo(buff)
                local usable, nomana = IsUsableSpell(name)
                if (usable or nomana) then
                    -- this makes no difference: frame.icon:SetTexture("Interface\\Icons\\Spell_Holy_InnerFire")
                    print(frame.icon:GetTexture()) -- returns nil
                    self.hasTexture = true
                    break
                end
            end
            if (not self.hasTexture and event == "PLAYER_LOGIN") then
                self:UnregisterAllEvents()
                self:RegisterEvent("LEARNED_SPELL_IN_TAB")
                return
            elseif (self.hasTexture and event == "LEARNED_SPELL_IN_TAB") then
                self:UnregisterAllEvents()
                self:RegisterEvent("UNIT_AURA")
                self:RegisterEvent("PLAYER_LOGIN")
                self:RegisterEvent("PLAYER_REGEN_ENABLED")
                self:RegisterEvent("PLAYER_REGEN_DISABLED")
            end
        end
        if (UnitAffectingCombat("player") and not UnitInVehicle("player")) then
            for i, buff in pairs(buffs) do
                local name = GetSpellInfo(buff)
                if (name and UnitBuff("player", name)) then
                    self:Hide()
                    return
                end
            end
            self:Show()
        else
            self:Hide()
        end
    end)
end

Setting the texture on frame.icon, then calling GetTexture(), returns the texture. However, calling GetTexture in the OnEvent code returns nil - whether or not I set the texture again, there.

I've added a boolean hasTexture to work around the GetTexture() problem, but it's very strange.