javascript - Horizontal scroll to next element inside a container prevent standard scroll -


i have got facebook news feed display inline in endless horizontal scrolling container should scroll between news elements , prevent default continuous scrolling behaviour.

js fiddle

this code entered manually focuses (not exactly) on specific news, eg. focusednews = 1 -> first news-container focused. because know every container has width of 500px , animate parent containers position, move wanted element focus.

 $(".fbnews").animate({left: -(focusednews - 1) * 500}, 500);

firstly detect in direction user scrolls works , logs direction console. either add or subtract 1 focusednews index scroll event happens way more once. thought of _.debounce or _.throttle scroll event, didn't help.

how can animate next or previous element on scroll , prevent default behaviour?

i use fullpagejs library such effects on vertical scroll , horizontal slides in other projects, library works full pages , not inside other containers.

the library sly.js fullfills needed http://darsa.in/sly/. horizontal scroll behaviour works in container on site.

i updated jsfiddle work library. fiddle

var sly = new sly( frame, options [, callbackmap ] );

it's not in vanilla js, works pretty well, on mobile browser touch , easy use usefull events such active

sly.on('active', function (eventname) {     //do if element got activated });

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