jquery.scrolldepth.min.js

/*!
 * @preserve
 * jquery.scrolldepth.js | v0.7.1
 * Copyright (c) 2014 Rob Flaherty (@robflaherty)
 * Licensed under the MIT and GPL licenses.
 */
!function(e,n,t){"use strict";var o,r,a,l={minHeight:0,elements:[],percentage:!0,userTiming:!0,pixelDepth:!0,nonInteraction:!0},i=e(n),c=[],u=0;e.scrollDepth=function(h){function p(e){a?a({event:"ScrollDistance",eventCategory:"Scroll Depth",eventAction:e,eventLabel:"Baseline",eventValue:1,eventNonInteraction:!0}):(o&&ga("send","event","Scroll Depth",e,"Baseline",1,{nonInteraction:!0}),r&&_gaq.push(["_trackEvent","Scroll Depth",e,"Baseline",1,!0]))}function g(e,n,t,l){a?(a({event:"ScrollDistance",eventCategory:"Scroll Depth",eventAction:e,eventLabel:n,eventValue:1,eventNonInteraction:h.nonInteraction}),h.pixelDepth&&arguments.length>2&&t>u&&(u=t,a({event:"ScrollDistance",eventCategory:"Scroll Depth",eventAction:"Pixel Depth",eventLabel:D(t),eventValue:1,eventNonInteraction:h.nonInteraction})),h.userTiming&&arguments.length>3&&a({event:"ScrollTiming",eventCategory:"Scroll Depth",eventAction:e,eventLabel:n,eventTiming:l})):(o&&(ga("send","event","Scroll Depth",e,n,1,{nonInteraction:h.nonInteraction}),h.pixelDepth&&arguments.length>2&&t>u&&(u=t,ga("send","event","Scroll Depth","Pixel Depth",D(t),1,{nonInteraction:h.nonInteraction})),h.userTiming&&arguments.length>3&&ga("send","timing","Scroll Depth",e,l,n)),r&&(_gaq.push(["_trackEvent","Scroll Depth",e,n,1,h.nonInteraction]),h.pixelDepth&&arguments.length>2&&t>u&&(u=t,_gaq.push(["_trackEvent","Scroll Depth","Pixel Depth",D(t),1,h.nonInteraction])),h.userTiming&&arguments.length>3&&_gaq.push(["_trackTiming","Scroll Depth",e,l,n,100])))}function s(e){return{"25%":parseInt(.25*e,10),"50%":parseInt(.5*e,10),"75%":parseInt(.75*e,10),"100%":e-5}}function v(n,t,o){e.each(n,function(n,r){-1===e.inArray(n,c)&&t>=r&&(g("Percentage",n,t,o),c.push(n))})}function f(n,t,o){e.each(n,function(n,r){-1===e.inArray(r,c)&&e(r).length&&t>=e(r).offset().top&&(g("Elements",r,t,o),c.push(r))})}function D(e){return(250*Math.floor(e/250)).toString()}function m(e,n){var t,o,r,a=null,l=0,i=function(){l=new Date,a=null,r=e.apply(t,o)};return function(){var c=new Date;l||(l=c);var u=n-(c-l);return t=this,o=arguments,0>=u?(clearTimeout(a),a=null,l=c,r=e.apply(t,o)):a||(a=setTimeout(i,u)),r}}var d=+new Date;h=e.extend({},l,h),e(t).height()<h.minHeight||("function"==typeof ga&&(o=!0),"undefined"!=typeof _gaq&&"function"==typeof _gaq.push&&(r=!0),"function"==typeof h.eventHandler?a=h.eventHandler:"undefined"!=typeof dataLayer&&"function"==typeof dataLayer.push&&(a=dataLayer.push),h.percentage?p("Percentage"):h.elements&&p("Elements"),i.on("scroll.scrollDepth",m(function(){var o=e(t).height(),r=n.innerHeight?n.innerHeight:i.height(),a=i.scrollTop()+r,l=s(o),u=+new Date-d;return c.length>=4+h.elements.length?void i.off("scroll.scrollDepth"):(h.elements&&f(h.elements,a,u),void(h.percentage&&v(l,a,u)))},500)))}}(jQuery,window,document);