WowLua 

local function dropDownFunc(page)
	WowLua:GoToPage(page)
end

local function dropDownFunc(btn, page)
	WowLua:GoToPage(page)
end

local queue, queuePos = {}, 0
local function queueFlush(all)
	if all then
		table.wipe(queue)
		queuePos = 0
	end
end
local function queueAction(text)
	if text ~= queue[queuePos] then
		queuePos = queuePos+1
		queue[queuePos] = text
		for i=queuePos+1,#queue do
			queue[i]=nil
		end
	end
end
local function queueUndo()
	local item = queue[queuePos-1]
	if item then 
		queuePos = queuePos-1
		return item
	end
	return queue[queuePos]
end
local function queueRedo()
	local item = queue[queuePos+1]
	if item then
		queuePos = queuePos+1
		return item
	end
	return queue[queuePos]
end

function WowLua:Button_Undo()
	local page, entry = self:GetCurrentPage()
	WowLuaFrameEditBox:SetText(queueUndo() or entry.content)
end
function WowLua:Button_Redo()
	local page, entry = self:GetCurrentPage()
	WowLuaFrameEditBox:SetText(queueRedo())
end
function WowLua:Button_Run()
	local text = WowLuaFrameEditBox:GetText()
	
	-- Run the script, if there is an error then highlight it
	if text then
		local succ,err = WowLua:RunScript(text)
		if not succ then
			local chunkName,lineNum = err:match("(%b[]):(%d+):")
			lineNum = tonumber(lineNum)
			WowLua:UpdateLineNums(lineNum)

			-- Highlight the text in the editor by finding the char of the line number we're on
			text = WowLua.indent.coloredGetText(WowLuaFrameEditBox)

			local curLine,start = 1,1
			while curLine < lineNum do
				local s,e = text:find("\n", start)
				start = e + 1
				curLine = curLine + 1
			end

			local nextLine = select(2, text:find("\n", start))
			
			WowLuaFrameEditBox:SetFocus()
			WowLuaFrameEditBox:SetCursorPosition(start - 1)
		else
			queueAction(text)
		end
	end
end