116 lines
3.6 KiB
Lua
116 lines
3.6 KiB
Lua
local GetExpansion = ShaguTweaks.GetExpansion
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local NAMEPLATE_OBJECTORDER = { "border", "glow", "name", "level", "levelicon", "raidicon" }
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local NAMEPLATE_TYPE = "Button"
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if GetExpansion() == "tbc" then
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NAMEPLATE_OBJECTORDER = { "border", "castborder", "casticon", "glow", "name", "level", "levelicon", "raidicon" }
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NAMEPLATE_TYPE = "Frame"
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end
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local function IsNamePlate(frame)
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if frame:GetObjectType() ~= NAMEPLATE_TYPE then return nil end
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local regions = frame:GetRegions()
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if not regions then return nil end
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if not regions.GetObjectType then return nil end
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if not regions.GetTexture then return nil end
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if regions:GetObjectType() ~= "Texture" then return nil end
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return regions:GetTexture() == "Interface\\Tooltips\\Nameplate-Border" or nil
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end
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local registry = {}
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local initialized = 0
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local parentcount, childs, plate
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local libnameplate = CreateFrame("Frame", nil, UIParent)
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ShaguTweaks.libnameplate = libnameplate
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libnameplate.OnInit = {}
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libnameplate.OnShow = {}
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libnameplate.OnUpdate = {}
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local onInit = libnameplate.OnInit
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local onShow = libnameplate.OnShow
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local onUpdate = libnameplate.OnUpdate
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local function ScanNameplates()
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parentcount = WorldFrame:GetNumChildren()
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if initialized < parentcount then
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childs = { WorldFrame:GetChildren() }
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for i = initialized + 1, parentcount do
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plate = childs[i]
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if IsNamePlate(plate) and not registry[plate] then
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plate.healthbar = plate:GetChildren()
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local regions = { plate:GetRegions() }
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for index = 1, table.getn(regions) do
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local key = NAMEPLATE_OBJECTORDER[index]
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if key then
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plate[key] = regions[index]
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end
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end
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-- Callback lists are arrays populated with table.insert(). Iterate them
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-- numerically: OnUpdate runs once per rendered frame on every visible
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-- nameplate, so avoid the generic pairs() iterator in this hot path.
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for index = 1, table.getn(onInit) do
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onInit[index](plate)
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end
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-- Preserve the native/addon scripts and append ShaguTweaks callbacks.
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local oldUpdate = plate:GetScript("OnUpdate")
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plate:SetScript("OnUpdate", function(self, elapsed)
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if oldUpdate then oldUpdate(self, elapsed) end
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for index = 1, table.getn(onUpdate) do
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onUpdate[index](self, elapsed)
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end
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end)
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local oldShow = plate:GetScript("OnShow")
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plate:SetScript("OnShow", function(self)
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if oldShow then oldShow(self) end
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for index = 1, table.getn(onShow) do
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onShow[index](self)
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end
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end)
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registry[plate] = true
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end
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end
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initialized = parentcount
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end
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end
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function libnameplate:HasConsumers()
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return table.getn(onInit) > 0
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or table.getn(onShow) > 0
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or table.getn(onUpdate) > 0
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end
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function libnameplate:Enable()
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if self.enabled then return end
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self.enabled = true
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self:SetScript("OnUpdate", ScanNameplates)
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end
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function libnameplate:EnableIfNeeded()
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if self:HasConsumers() then
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self:Enable()
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end
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end
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-- Stay completely dormant until an enabled ShaguTweaks module (or an
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-- external addon) actually registers a nameplate callback.
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libnameplate.enabled = false
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libnameplate:SetScript("OnUpdate", nil)
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-- Load-on-demand addons can register callbacks after the normal ShaguTweaks
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-- initialization pass. ADDON_LOADED is enough to catch those without keeping
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-- a polling OnUpdate alive while the library is unused.
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local activation = CreateFrame("Frame")
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activation:RegisterEvent("ADDON_LOADED")
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activation:SetScript("OnEvent", function()
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libnameplate:EnableIfNeeded()
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end)
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