axmol/cocos/scripting/lua-bindings/script/framework/extends/LayerEx.lua

--[[

Copyright (c) 2011-2014 chukong-inc.com

Permission is hereby granted, free of charge, to any person obtaining a copy
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]]

local Layer = cc.Layer

function Layer:onTouch(callback, isMultiTouches, swallowTouches)
    if type(isMultiTouches) ~= "boolean" then isMultiTouches = false end
    if type(swallowTouches) ~= "boolean" then swallowTouches = false end

    self:registerScriptTouchHandler(function(state, ...)
        local args = {...}
        local event = {name = state}
        if isMultiTouches then
            args = args[1]
            local points = {}
            for i = 1, #args, 3 do
                local x, y, id = args[i], args[i + 1], args[i + 2]
                points[id] = {x = x, y = y, id = id}
            end
            event.points = points
        else
            event.x = args[1]
            event.y = args[2]
        end
        callback(event)
    end, isMultiTouches, 0, swallowTouches)
    self:setTouchEnabled(true)
    return self
end

function Layer:removeTouch()
    self:unregisterScriptTouchHandler()
    self:setTouchEnabled(false)
    return self
end