Raid.lua

local roleColors = {
	TANK    = {0.2, 0.2, 0.8},
	HEALER  = {0, 0.7, 0},
	DAMAGER = {0.7, 0, 0},
	NONE    = {0.7, 0.7, 0.7},
}

local function onEnter(self)
	GameTooltip:SetOwner(self, "ANCHOR_LEFT")
	GameTooltip:SetText(UnitName(self.unit))
	GameTooltip:Show()
end

function NewSecureGroupHeader(name)
	local header = _G[name] or CreateFrame("Frame", name, UIParent, "SecureGroupHeaderTemplate")
	
	header:SetAttribute("showRaid", true)
	header:SetAttribute("point", "LEFT")
	header:SetAttribute("xOffset", 1)
	header:SetAttribute("unitsPerColumn", 5)
	header:SetAttribute("maxColumns", 8)
	header:SetAttribute("columnAnchorPoint", "TOP")
	header:SetAttribute("columnSpacing", 1)
	header:SetAttribute("template", "AuraButtonTemplate, SecureUnitButtonTemplate")
	
	header:SetAttribute("initialConfigFunction", [[
		self:SetAttribute("*type1", "target")
	]])
	
	header.e = header.e or CreateFrame("Frame")
	header.e:RegisterEvent("GROUP_ROSTER_UPDATE")
	header.e:RegisterEvent("PLAYER_ROLES_ASSIGNED")
	header.e:SetScript("OnEvent", function(self, event, ...)
		 for i, frame in ipairs(header) do
			frame:SetScript("OnEnter", onEnter)
			frame:SetScript("OnLeave", GameTooltip_Hide)
			frame.bg = frame.bg or frame:CreateTexture(nil, "BACKGROUND")
			frame.bg:SetAllPoints()
			frame.role = frame.role or frame:CreateTexture()
			frame.role:SetSize(8, 8)
			frame.role:SetPoint("TOPLEFT")
			frame.roleBG = frame.roleBG or frame:CreateTexture(nil, nil, nil, -1)
			frame.roleBG:SetSize(9, 9)
			frame.roleBG:SetPoint("TOPLEFT")
			frame.roleBG:SetTexture(0, 0, 0)
			local unit = frame:GetAttribute("unit")
			frame.unit = unit
			if unit then
				local _, class = UnitClass(unit)
				classColor = RAID_CLASS_COLORS[class]
				frame.bg:SetTexture(classColor.r, classColor.g, classColor.b)
				frame.role:SetTexture(unpack(roleColors[UnitGroupRolesAssigned(unit)]))
			end
		 end
	end)
	
	return header
end

local tanks = NewSecureGroupHeader("LombleRaidTanks")
tanks:SetAttribute("roleFilter", "TANK")
tanks:SetPoint("TOPLEFT", 32, -32)
tanks:Show()

local healers = NewSecureGroupHeader("LombleRaidHealers")
healers:SetAttribute("roleFilter", "HEALER")
healers:SetPoint("TOPLEFT", tanks, "BOTTOMLEFT", 0, -4)
healers:Show()

local damagers = NewSecureGroupHeader("LombleRaidDamagers")
damagers:SetAttribute("roleFilter", "DAMAGER")
damagers:SetPoint("TOPLEFT", healers, "BOTTOMLEFT", 0, -4)
damagers:Show()

local none = NewSecureGroupHeader("LombleRaidNone")
none:SetAttribute("roleFilter", "NONE")
none:SetPoint("TOPLEFT", damagers, "BOTTOMLEFT", 0, -4)
none:Show()

local raid = NewSecureGroupHeader("LombleRaidAll")
raid:SetAttribute("groupingOrder", "TANK,HEALER,DAMAGER,NONE")
raid:SetAttribute("groupBy", "ASSIGNEDROLE")
raid:SetPoint("TOPLEFT", 192, -32)
raid:Show()