如何检测本机滚动条的按钮单击事件？

Question

I was wondering if I can detect native scrollbar's left/right or up/down buttons click event. I want to know because I want to give a custom behaviour of the scrollbar, like scroll only in some fixed steps etc. I have used scroll function, but it doesn't exactly give me the smoothness I wanted:

var step = 200;
var nextPos=-1;
var pos;
var scrolltarget;
$(' .scrollable ul').scroll(function(e){
    clearTimeout($.data(this, 'scrollTimer'));
    scrolltarget=$(this);
    $.data(this, 'scrollTimer', setTimeout(function() {
        pos=scrolltarget.scrollLeft();
        if(pos%step!=0){
          if(pos>nextPos){
            scrolltarget.animate({
              scrollLeft: pos-pos%step+step
            },250);
          }
          else if(pos<nextPos){
            scrolltarget.animate({
              scrollLeft: pos-pos%step
            },250);
          }
        }

        nextPos=scrolltarget.scrollLeft();
    }, 250));         
});

Answer 1

you can use

$( window ).scroll(function() {
 // your java script code 
});

---

i recommend you to see this scroll jquery event .