jquery.slimscroll.min.js

/*! Copyright (c) 2011 Piotr Rochala (http://rocha.la)
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 *
 * Version: 1.2.0
 *
 */
(function(e){jQuery.fn.extend({slimScroll:function(h){var a=e.extend({width:"auto",height:"250px",size:"7px",color:"#000",position:"right",distance:"1px",start:"top",opacity:0.4,alwaysVisible:!1,disableFadeOut:!1,railVisible:!1,railColor:"#333",railOpacity:0.2,railDraggable:!0,railClass:"slimScrollRail",barClass:"slimScrollBar",wrapperClass:"slimScrollDiv",allowPageScroll:!1,wheelStep:20,touchScrollStep:200},h);this.each(function(){function s(d){if(q){d=d||window.event;var c=0;d.wheelDelta&&(c=-d.wheelDelta/
120);d.detail&&(c=d.detail/3);e(d.target||d.srcTarget||d.srcElement).closest("."+a.wrapperClass).is(b.parent())&&k(c,!0);d.preventDefault&&!m&&d.preventDefault();m||(d.returnValue=!1)}}function k(d,e,h){var f=d,g=b.outerHeight()-c.outerHeight();e&&(f=parseInt(c.css("top"))+d*parseInt(a.wheelStep)/100*c.outerHeight(),f=Math.min(Math.max(f,0),g),f=0<d?Math.ceil(f):Math.floor(f),c.css({top:f+"px"}));j=parseInt(c.css("top"))/(b.outerHeight()-c.outerHeight());f=j*(b[0].scrollHeight-b.outerHeight());h&&
(f=d,d=f/b[0].scrollHeight*b.outerHeight(),d=Math.min(Math.max(d,0),g),c.css({top:d+"px"}));b.scrollTop(f);b.trigger("slimscrolling",~~f);t();n()}function A(){window.addEventListener?(this.addEventListener("DOMMouseScroll",s,!1),this.addEventListener("mousewheel",s,!1)):document.attachEvent("onmousewheel",s)}function u(){r=Math.max(b.outerHeight()/b[0].scrollHeight*b.outerHeight(),B);c.css({height:r+"px"});var a=r==b.outerHeight()?"none":"block";c.css({display:a})}function t(){u();clearTimeout(x);
j==~~j?(m=a.allowPageScroll,y!=j&&b.trigger("slimscroll",0==~~j?"top":"bottom")):m=!1;y=j;r>=b.outerHeight()?m=!0:(c.stop(!0,!0).fadeIn("fast"),a.railVisible&&g.stop(!0,!0).fadeIn("fast"))}function n(){a.alwaysVisible||(x=setTimeout(function(){if((!a.disableFadeOut||!q)&&!v&&!w)c.fadeOut("slow"),g.fadeOut("slow")},1E3))}var q,v,w,x,z,r,j,y,B=30,m=!1,b=e(this);if(b.parent().hasClass(a.wrapperClass)){var l=b.scrollTop(),c=b.parent().find("."+a.barClass),g=b.parent().find("."+a.railClass);u();if(e.isPlainObject(h)){if("height"in
h&&"auto"==h.height){b.parent().css("height","auto");b.css("height","auto");var p=b.parent().parent().height();b.parent().css("height",p);b.css("height",p)}if("scrollTo"in h)l=parseInt(a.scrollTo);else if("scrollBy"in h)l+=parseInt(a.scrollBy);else if("destroy"in h){c.remove();g.remove();b.unwrap();return}k(l,!1,!0)}}else{a.height="auto"==a.height?b.parent().height():a.height;l=e("<div></div>").addClass(a.wrapperClass).css({position:"relative",overflow:"hidden",width:a.width,height:a.height});b.css({overflow:"hidden",
width:a.width,height:a.height});var g=e("<div></div>").addClass(a.railClass).css({width:a.size,height:"100%",position:"absolute",top:0,display:a.alwaysVisible&&a.railVisible?"block":"none","border-radius":a.size,background:a.railColor,opacity:a.railOpacity,zIndex:90}),c=e("<div></div>").addClass(a.barClass).css({background:a.color,width:a.size,position:"absolute",top:0,opacity:a.opacity,display:a.alwaysVisible?"block":"none","border-radius":a.size,BorderRadius:a.size,MozBorderRadius:a.size,WebkitBorderRadius:a.size,
zIndex:99}),p="right"==a.position?{right:a.distance}:{left:a.distance};g.css(p);c.css(p);b.wrap(l);b.parent().append(c);b.parent().append(g);a.railDraggable&&(e.ui&&"function"==typeof e.ui.draggable)&&c.draggable({axis:"y",containment:"parent",start:function(){w=!0},stop:function(){w=!1;n()},drag:function(){k(0,e(this).position().top,!1)}});g.hover(function(){t()},function(){n()});c.hover(function(){v=!0},function(){v=!1});b.hover(function(){q=!0;t();n()},function(){q=!1;n()});b.bind("touchstart",
function(a){a.originalEvent.touches.length&&(z=a.originalEvent.touches[0].pageY)});b.bind("touchmove",function(b){b.originalEvent.preventDefault();b.originalEvent.touches.length&&k((z-b.originalEvent.touches[0].pageY)/a.touchScrollStep,!0)});"bottom"===a.start?(c.css({top:b.outerHeight()-c.outerHeight()}),k(0,!0)):"top"!==a.start&&(k(e(a.start).position().top,null,!0),a.alwaysVisible||c.hide());A();u()}});return this}});jQuery.fn.extend({slimscroll:jQuery.fn.slimScroll})})(jQuery);