jquery-fastclick.js

jquery-fastclick.js

(function($){
    var hasTouch = 'ontouchstart' in window

    $.fn.fastclick  = function(fn, delay, amount){
        delay = delay || 50
        amount = amount || 10

        // browser fallback
        if(!hasTouch){
            return this.each(function(){
                $(this).click(fn)
            })
        }

        return this.each(function(){
            var s = 0,
                x = null,
                y = null

            $(this).bind('touchstart', function(ev){
                var e = ev.originalEvent,
                    t = e.touches[0]

                x = t.screenX
                y = t.screenY

                //e.preventDefault()

            }).bind('touchend', function(ev){
                var e = ev.originalEvent,
                    t = e.changedTouches[0]

                if((Math.abs(t.screenX - x) <= amount &&
                    Math.abs(t.screenY - y) <= amount) ||
                    e.timeStamp - s < delay){
                    fn.apply(this)
                }
                x = null
                y = null
            })
        })
    }

})(jQuery)