MoveIt.Overlay = {}

function MoveIt.Overlay:CreateOverlay()

	self.overlayFrame = CreateFrame("Frame", "MoveItOverlay", _G["UIParent"])
	local bg = self.overlayFrame:CreateTexture(nil,"BACKGROUND")
	bg:SetTexture("Interface\\CHATFRAME\\CHATFRAMEBACKGROUND.blp")
	bg:SetAllPoints(self.overlayFrame)
	bg:SetColorTexture(1, 0, 1, 0.25)
	self.overlayFrame.texture = bg
	self.overlayFrame:SetWidth(100)
	self.overlayFrame:SetHeight(100)
	self.overlayFrame:SetPoint("CENTER", 0, 0)
    self.overlayFrame:Hide()

end

function MoveIt.Overlay:UpdateOverlay(frameName)

	if frameName == nil then
		if self.overlayFrame ~= nil then self.overlayFrame:Hide() end
		return
	end

	if self.overlayFrame == nil then self:CreateOverlay() end
    local targetFrame = MoveIt:GetFrameHandle(frameName)
	if pcall(function() MoveIt.Overlay.overlayFrame:SetParent(targetFrame) end) then
		self.overlayFrame:SetAllPoints()
    else
		self.overlayFrame:ClearAllPoints()
		self.overlayFrame:SetPoint("CENTER", targetFrame, "CENTER", targetFrame.OffsetX, targetFrame.OffsetY)
	end
	self.overlayFrame:SetParent(MoveIt:GetFrameHandle("UIParent"))
	self.overlayFrame:SetWidth(targetFrame:GetWidth())
	self.overlayFrame:SetHeight(targetFrame:GetHeight())
	self.overlayFrame:SetFrameStrata("HIGH")
	self.overlayFrame:Show()

end