Scroll Horizontally with MouseWheel

http://latitudu.blogspot.com

by Taufik Nurrohman

HTML

<div id="scroll-area">
    <div>
        <p><strong>Scroll horizontally with mouse wheel! &rArr;</strong> Lorem ipsum
            dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod
            tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad
            minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis
            nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor
            in hendrerit in vulputate velit esse molestie consequat, vel illum dolore
            eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim
            qui blandit praesent luptatum zzril delenit augue duis dolore te feugait
            nulla facilisi. Nam liber tempor cum soluta nobis eleifend option congue
            nihil imperdiet doming id quod mazim placerat facer possim assum. Typi
            non habent claritatem insitam; est usus legentis in iis qui facit eorum
            claritatem. Investigationes demonstraverunt lectores legere me lius quod
            ii legunt saepius. Claritas est etiam processus dynamicus, qui sequitur
            mutationem consuetudium lectorum. Mirum est notare quam littera gothica,
            quam nunc putamus parum claram, anteposuerit litterarum formas humanitatis
            per seacula quarta decima et quinta decima. Eodem modo typi, qui nunc nobis
            videntur parum clari, fiant sollemnes in futurum.</p>
        <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy
            nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut
            wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit
            lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure
            dolor in hendrerit in vulputate velit esse molestie consequat, vel illum
            dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio
           ...

CSS

* {
    margin:0;
    padding:0;
}
body {
    background-color:white;
    padding:10px;
    font:normal normal 16px/1.4 Times, Serif;
    color:black;
}
#scroll-area {
    width:400px;
    border:2px solid;
    background-color:#ccc;
    overflow:hidden;
}
#scroll-area div {
    width:3000px;
    position:relative;
    /* relative positioned */
    padding:10px 14px;
}

JavaScript

// Fake horizontal scrolling with mouse wheel
var elem = document.getElementById('scroll-area'),
    width = parseInt(elem.offsetWidth, 10),
    cldWidth = parseInt(elem.children[0].offsetWidth, 10),
    distance = cldWidth - width,
    mean = 40, // Just for multiplier (go faster or slower)
    current = 0;

elem.children[0].style.left = current + "px"; // Set default `left` value as `0` for initiation

var doScroll = function (e) {

    // cross-browser wheel delta
    e = window.event || e;
    var delta = Math.max(-1, Math.min(1, (e.wheelDelta || -e.detail)));

    // (1 = scroll-up, -1 = scroll-down)
    // Always check the scroll distance, make sure that the scroll distance value will not
    // increased more than the container width and/or less than zero
    if ((delta == -1 && current * mean >= -distance) || (delta == 1 && current * mean < 0)) {
        current = current + delta;
    }

    // Move element to the left or right by updating the `left` value
    elem.children[0].style.left = (current * mean) + 'px';

    e.preventDefault();

};

if (elem.addEventListener) {
    elem.addEventListener("mousewheel", doScroll, false);
    elem.addEventListener("DOMMouseScroll", doScroll, false);
} else {
    elem.attachEvent("onmousewheel", doScroll);
}