7 lines
2 KiB
JavaScript
7 lines
2 KiB
JavaScript
|
/*!
|
||
|
|
* scrollup v2.4.1
|
||
|
|
* Url: http://markgoodyear.com/labs/scrollup/
|
||
|
|
* Copyright (c) Mark Goodyear — @markgdyr — http://markgoodyear.com
|
||
|
|
* License: MIT
|
||
|
|
*/
|
||
|
|
!function(l,o,e){"use strict";l.fn.scrollUp=function(o){l.data(e.body,"scrollUp")||(l.data(e.body,"scrollUp",!0),l.fn.scrollUp.init(o))},l.fn.scrollUp.init=function(r){var s,t,c,i,n,a,d,p=l.fn.scrollUp.settings=l.extend({},l.fn.scrollUp.defaults,r),f=!1;switch(d=p.scrollTrigger?l(p.scrollTrigger):l("<a/>",{id:p.scrollName,href:"#top"}),p.scrollTitle&&d.attr("title",p.scrollTitle),d.appendTo("body"),p.scrollImg||p.scrollTrigger||d.html(p.scrollText),d.css({display:"none",position:"fixed",zIndex:p.zIndex}),p.activeOverlay&&l("<div/>",{id:p.scrollName+"-active"}).css({position:"absolute",top:p.scrollDistance+"px",width:"100%",borderTop:"1px dotted"+p.activeOverlay,zIndex:p.zIndex}).appendTo("body"),p.animation){case"fade":s="fadeIn",t="fadeOut",c=p.animationSpeed;break;case"slide":s="slideDown",t="slideUp",c=p.animationSpeed;break;default:s="show",t="hide",c=0}i="top"===p.scrollFrom?p.scrollDistance:l(e).height()-l(o).height()-p.scrollDistance,n=l(o).scroll(function(){l(o).scrollTop()>i?f||(d[s](c),f=!0):f&&(d[t](c),f=!1)}),p.scrollTarget?"number"==typeof p.scrollTarget?a=p.scrollTarget:"string"==typeof p.scrollTarget&&(a=Math.floor(l(p.scrollTarget).offset().top)):a=0,d.click(function(o){o.preventDefault(),l("html, body").animate({scrollTop:a},p.scrollSpeed,p.easingType)})},l.fn.scrollUp.defaults={scrollName:"scrollUp",scrollDistance:300,scrollFrom:"top",scrollSpeed:300,easingType:"linear",animation:"slide",animationSpeed:200,scrollTrigger:!1,scrollTarget:!1,scrollText:"",scrollTitle:!1,scrollImg:!1,activeOverlay:!1,zIndex:2147483647},l.fn.scrollUp.destroy=function(r){l.removeData(e.body,"scrollUp"),l("#"+l.fn.scrollUp.settings.scrollName).remove(),l("#"+l.fn.scrollUp.settings.scrollName+"-active").remove(),l.fn.jquery.split(".")[1]>=7?l(o).off("scroll",r):l(o).unbind("scroll",r)},l.scrollUp=l.fn.scrollUp}(jQuery,window,document);
|