Нарек,
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>jQuery UI Slider - Slider scrollbar</title>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.11.0/themes/smoothness/jquery-ui.css">
<script src="http://code.jquery.com/jquery-1.11.2.js"></script>
<script src="http://code.jquery.com/ui/1.11.0/jquery-ui.js"></script>
<script>/*! Copyright (c) 2013 Brandon Aaron (http://brandon.aaron.sh)
* Licensed under the MIT License (LICENSE.txt).
*
* Version: 3.1.12
*
* Requires: jQuery 1.2.2+
*/
!function(a){"function"==typeof define&&define.amd?define(["jquery"],a):"object"==typeof exports?module.exports=a:a(jQuery)}(function(a){function b(b){var g=b||window.event,h=i.call(arguments,1),j=0,l=0,m=0,n=0,o=0,p=0;if(b=a.event.fix(g),b.type="mousewheel","detail"in g&&(m=-1*g.detail),"wheelDelta"in g&&(m=g.wheelDelta),"wheelDeltaY"in g&&(m=g.wheelDeltaY),"wheelDeltaX"in g&&(l=-1*g.wheelDeltaX),"axis"in g&&g.axis===g.HORIZONTAL_AXIS&&(l=-1*m,m=0),j=0===m?l:m,"deltaY"in g&&(m=-1*g.deltaY,j=m),"deltaX"in g&&(l=g.deltaX,0===m&&(j=-1*l)),0!==m||0!==l){if(1===g.deltaMode){var q=a.data(this,"mousewheel-line-height");j*=q,m*=q,l*=q}else if(2===g.deltaMode){var r=a.data(this,"mousewheel-page-height");j*=r,m*=r,l*=r}if(n=Math.max(Math.abs(m),Math.abs(l)),(!f||f>n)&&(f=n,d(g,n)&&(f/=40)),d(g,n)&&(j/=40,l/=40,m/=40),j=Math[j>=1?"floor":"ceil"](j/f),l=Math[l>=1?"floor":"ceil"](l/f),m=Math[m>=1?"floor":"ceil"](m/f),k.settings.normalizeOffset&&this.getBoundingClientRect){var s=this.getBoundingClientRect();o=b.clientX-s.left,p=b.clientY-s.top}return b.deltaX=l,b.deltaY=m,b.deltaFactor=f,b.offsetX=o,b.offsetY=p,b.deltaMode=0,h.unshift(b,j,l,m),e&&clearTimeout(e),e=setTimeout(c,200),(a.event.dispatch||a.event.handle).apply(this,h)}}function c(){f=null}function d(a,b){return k.settings.adjustOldDeltas&&"mousewheel"===a.type&&b%120===0}var e,f,g=["wheel","mousewheel","DOMMouseScroll","MozMousePixelScroll"],h="onwheel"in document||document.documentMode>=9?["wheel"]:["mousewheel","DomMouseScroll","MozMousePixelScroll"],i=Array.prototype.slice;if(a.event.fixHooks)for(var j=g.length;j;)a.event.fixHooks[g[--j]]=a.event.mouseHooks;var k=a.event.special.mousewheel={version:"3.1.12",setup:function(){if(this.addEventListener)for(var c=h.length;c;)this.addEventListener(h[--c],b,!1);else this.onmousewheel=b;a.data(this,"mousewheel-line-height",k.getLineHeight(this)),a.data(this,"mousewheel-page-height",k.getPageHeight(this))},teardown:function(){if(this.removeEventListener)for(var c=h.length;c;)this.removeEventListener(h[--c],b,!1);else this.onmousewheel=null;a.removeData(this,"mousewheel-line-height"),a.removeData(this,"mousewheel-page-height")},getLineHeight:function(b){var c=a(b),d=c["offsetParent"in a.fn?"offsetParent":"parent"]();return d.length||(d=a("body")),parseInt(d.css("fontSize"),10)||parseInt(c.css("fontSize"),10)||16},getPageHeight:function(b){return a(b).height()},settings:{adjustOldDeltas:!0,normalizeOffset:!0}};a.fn.extend({mousewheel:function(a){return a?this.bind("mousewheel",a):this.trigger("mousewheel")},unmousewheel:function(a){return this.unbind("mousewheel",a)}})});
</script>
<link rel="stylesheet" href="/resources/demos/style.css">
<style>
.scroll-pane { overflow: auto; width: 500px; margin: 20px auto; }
.scroll-content { width: 2440px; float: left; }
.scroll-content-item { width: 100px; height: 100px; float: left; margin: 10px; font-size: 3em; line-height: 96px; text-align: center; }
.scroll-bar-wrap { clear: left; padding: 0 4px 0 2px; margin: 0 -1px -1px -1px; }
.scroll-bar-wrap .ui-slider { background: none; border:0; height: 2em; margin: 0 auto; }
.scroll-bar-wrap .ui-handle-helper-parent { position: relative; width: 100%; height: 100%; margin: 0 auto; }
.scroll-bar-wrap .ui-slider-handle { top:.2em; height: 1.5em; }
.scroll-bar-wrap .ui-slider-handle .ui-icon { margin: -8px auto 0; position: relative; top: 50%; }
</style>
<script>
$(function() {
//scrollpane parts
var scrollPane = $( ".scroll-pane" ),
scrollContent = $( ".scroll-content" );
//build slider
var scrollbar = $( ".scroll-bar" ).slider({
slide: function( event, ui ) {
if ( scrollContent.width() > scrollPane.width() ) {
scrollContent.css( "margin-left", Math.round(
ui.value / 100 * ( scrollPane.width() - scrollContent.width() )
) + "px" );
} else {
scrollContent.css( "margin-left", 0 );
}
},
change: function( event, ui ) {
if ( scrollContent.width() > scrollPane.width() ) {
scrollContent.css( "margin-left", Math.round(
ui.value / 100 * ( scrollPane.width() - scrollContent.width() )
) + "px" );
} else {
scrollContent.css( "margin-left", 0 );
}
}
});
//append icon to handle
var handleHelper = scrollbar.find( ".ui-slider-handle" )
.mousedown(function() {
scrollbar.width( handleHelper.width() );
})
.mouseup(function() {
scrollbar.width( "100%" );
})
.append( "<span class='ui-icon ui-icon-grip-dotted-vertical'></span>" )
.wrap( "<div class='ui-handle-helper-parent'></div>" ).parent();
//change overflow to hidden now that slider handles the scrolling
scrollPane.css( "overflow", "hidden" );
//size scrollbar and handle proportionally to scroll distance
function sizeScrollbar() {
var remainder = scrollContent.width() - scrollPane.width();
var proportion = remainder / scrollContent.width();
var handleSize = scrollPane.width() - ( proportion * scrollPane.width() );
scrollbar.find( ".ui-slider-handle" ).css({
width: handleSize,
"margin-left": -handleSize / 2
});
handleHelper.width( "" ).width( scrollbar.width() - handleSize );
}
//reset slider value based on scroll content position
function resetValue() {
var remainder = scrollPane.width() - scrollContent.width();
var leftVal = scrollContent.css( "margin-left" ) === "auto" ? 0 :
parseInt( scrollContent.css( "margin-left" ) );
var percentage = Math.round( leftVal / remainder * 100 );
scrollbar.slider( "value", percentage );
}
//if the slider is 100% and window gets larger, reveal content
function reflowContent() {
var showing = scrollContent.width() + parseInt( scrollContent.css( "margin-left" ), 10 );
var gap = scrollPane.width() - showing;
if ( gap > 0 ) {
scrollContent.css( "margin-left", parseInt( scrollContent.css( "margin-left" ), 10 ) + gap );
}
}
//change handle position on window resize
$( window ).resize(function() {
resetValue();
sizeScrollbar();
reflowContent();
});
//init scrollbar size
$('#my_elem').mousewheel(function(event) {
console.log(event.deltaX, event.deltaY, event.deltaFactor);
});
setTimeout( sizeScrollbar, 10 );//safari wants a timeout
$( ".scroll-pane" ).mousewheel(function (event) {event.preventDefault();
var value = scrollbar.slider( "option", "value" );
value += event.deltaY;
value > 100 && (value = 100);
value < 0 && (value = 0);
scrollbar.slider( "option", "value", value );
});
});
</script>
</head>
<body>
<div class="scroll-pane ui-widget ui-widget-header ui-corner-all">
<div class="scroll-content">
<div class="scroll-content-item ui-widget-header">1</div>
<div class="scroll-content-item ui-widget-header">2</div>
<div class="scroll-content-item ui-widget-header">3</div>
<div class="scroll-content-item ui-widget-header">4</div>
<div class="scroll-content-item ui-widget-header">5</div>
<div class="scroll-content-item ui-widget-header">6</div>
<div class="scroll-content-item ui-widget-header">7</div>
<div class="scroll-content-item ui-widget-header">8</div>
<div class="scroll-content-item ui-widget-header">9</div>
<div class="scroll-content-item ui-widget-header">10</div>
<div class="scroll-content-item ui-widget-header">11</div>
<div class="scroll-content-item ui-widget-header">12</div>
<div class="scroll-content-item ui-widget-header">13</div>
<div class="scroll-content-item ui-widget-header">14</div>
<div class="scroll-content-item ui-widget-header">15</div>
<div class="scroll-content-item ui-widget-header">16</div>
<div class="scroll-content-item ui-widget-header">17</div>
<div class="scroll-content-item ui-widget-header">18</div>
<div class="scroll-content-item ui-widget-header">19</div>
<div class="scroll-content-item ui-widget-header">20</div>
</div>
<div class="scroll-bar-wrap ui-widget-content ui-corner-bottom">
<div class="scroll-bar"></div>
</div>
</div>
</body>
</html>