1 line
1.7 KiB
JavaScript
Executable File
1 line
1.7 KiB
JavaScript
Executable File
!function(r){"use strict";"object"==typeof module&&"object"==typeof module.exports?module.exports=r(require("jquery")):r(jQuery)}(function($){"use strict";var r={bgVertical:function(r,t){return r.css({"background-position":"center "+-t+"px"})},bgHorizontal:function(r,t){return r.css({"background-position":-t+"px center"})},vertical:function(r,t,o){return"none"===o?o="":!0,r.css({"-webkit-transform":"translateY("+t+"px)"+o,"-moz-transform":"translateY("+t+"px)"+o,transform:"translateY("+t+"px)"+o,transition:"transform linear","will-change":"transform"})},horizontal:function(r,t,o){return"none"===o?o="":!0,r.css({"-webkit-transform":"translateX("+t+"px)"+o,"-moz-transform":"translateX("+t+"px)"+o,transform:"translateX("+t+"px)"+o,transition:"transform linear","will-change":"transform"})}};$.fn.paroller=function(t){var o=$(window).height(),n=$(document).height(),t=$.extend({factor:0,type:"background",direction:"vertical"},t);return this.each(function(){var a=!1,e=$(this),i=e.offset().top,c=e.outerHeight(),l=e.data("paroller-factor"),s=e.data("paroller-type"),u=e.data("paroller-direction"),f=l?l:t.factor,d=s?s:t.type,h=u?u:t.direction,p=Math.round(i*f),g=Math.round((i-o/2+c)*f),m=e.css("transform");"background"==d?"vertical"==h?r.bgVertical(e,p):"horizontal"==h&&r.bgHorizontal(e,p):"foreground"==d&&("vertical"==h?r.vertical(e,g,m):"horizontal"==h&&r.horizontal(e,g,m));var b=function(){a=!1};$(window).on("scroll",function(){if(!a){var t=$(this).scrollTop();n=$(document).height(),p=Math.round((i-t)*f),g=Math.round((i-o/2+c-t)*f),"background"==d?"vertical"==h?r.bgVertical(e,p):"horizontal"==h&&r.bgHorizontal(e,p):"foreground"==d&&n>=t&&("vertical"==h?r.vertical(e,g,m):"horizontal"==h&&r.horizontal(e,g,m)),window.requestAnimationFrame(b),a=!0}}).trigger("scroll")})}}); |