SkinSupport.lua

--[[--------------------------------------------------------------------
	PhanxBuffs
	Replacement player buff, debuff, and temporary enchant frames.
	Copyright (c) 2010-2018 Phanx <addons@phanx.net>. All rights reserved.
	https://github.com/Phanx/PhanxBuffs
	https://www.curseforge.com/wow/addons/phanxbuffs
	https://www.wowinterface.com/downloads/info16874-PhanxBuffs.html
----------------------------------------------------------------------]]

local Masque = LibStub("Masque", true)
if not Masque then return end

local done
local _, ns = ...

function ns.SkinWithMasque()
	-- print("Initializing skin support...")
	if done then return end

	local db = PhanxBuffsDB
	if db.noMasque then return end
	if db.skin then
		-- print("Removing old skin data...")
		db.skin = nil
	end

	local buttonDataLayers = {
		"AutoCast",
		"AutoCastable",
		"Backdrop",
		"Checked",
		"Cooldown",
		"Count",
		"Disabled",
		"Flash",
		"Highlight",
		"HotKey",
		"Name",
		"Pushed"
	}

	local function SkinButton(f)
		-- print("Skinning button in frame " .. f:GetParent():GetName() .. "...")

		if f.border then
			f.border:SetTexture(nil)
			f.border:Hide()
			f.border = nil
		end

		f.buttonData = {
			Icon = f.icon 
		}
		for i = 1, #buttonDataLayers do
			f.buttonData[buttonDataLayers[i]] = false
		end

		if f:GetParent() == PhanxBuffFrame then
			f.buttonData.Border = false
		else
			f.border = f.border or f:CreateTexture()
			f.buttonData.Border = f.border
		end

		if f.SetBorderColor then
			f.SetBorderColor = function(f, r, g, b, a)
				if a and a > 0 then
					f.border:SetVertexColor(r, g, b, a)
				else
					f.border:SetVertexColor(1, 1, 1, 0)
				end
			end
		end

		Masque:Group("PhanxBuffs"):AddButton(f, f.buttonData)

		if f:GetParent() == PhanxTempEnchantFrame then
			-- print("Recoloring temp enchant button")
			f.border:SetVertexColor(0.46, 0.18, 0.67, 1)
		end
	end

	local function SkinFrame(frame)
		-- print("Skinning frame " .. frame:GetName() .. "...")
		local buttons = frame.buttons

		for i = 1, #buttons do
			-- print("Skinning button " .. i .. " in frame " .. frame:GetName() .. "...")
			SkinButton(buttons[i])
		end

		local oldmetatable = getmetatable(buttons).__index
		setmetatable(buttons, { __index = function(t, i)
			local f = oldmetatable(t, i)
			-- print("Creating skinned button in frame " .. f:GetParent():GetName() .. "...")
			SkinButton(f)
			return f
		end })
	end

	local hooked
	local function ReSkin(self)
		local button = self.buttons[1]
		if not button then return end
		local size = floor(button:GetHeight() + 0.5)
		if size ~= button.prevsize then
			--print("reskinning on size change", button.prevsize, "=>", size)
			button.prevsize = size
			Masque:Group("PhanxBuffs"):ReSkin()
		end
	end

	local function OnSkinChanged(_, _, skin, gloss, backdrop, colors, fonts)
		-- print(string.format("New skin: %s, Gloss: %s, Backdrop: %s", skin, tostring(gloss), tostring(backdrop)))

		for i = 1, #PhanxTempEnchantFrame.buttons do
			-- print("Recoloring temp enchant button", i)
			PhanxTempEnchantFrame.buttons[i].border:SetVertexColor(0.46, 0.18, 0.67, 1)
		end

		for i = 1, #ns.auraFrames do
			ns.auraFrames[i]:Update()
		end

		if not hooked then
			for i = 1, #ns.auraFrames do
				hooksecurefunc(ns.auraFrames[i], "UpdateLayout", ReSkin)
			end
			hooked = true
		end
	end

	Masque:Register("PhanxBuffs", OnSkinChanged)

	for i = 1, #ns.auraFrames do
		SkinFrame(ns.auraFrames[i])
	end

	done = true
end