jquery.scrolldepth.min.js

/*!
 * @preserve
 * jquery.scrolldepth.js | v0.9
 * Copyright (c) 2015 Rob Flaherty (@robflaherty)
 * Licensed under the MIT and GPL licenses.
 */
!function(e,n,t){"use strict";var r,o,i,l,a={minHeight:0,elements:[],percentage:!0,userTiming:!0,pixelDepth:!0,nonInteraction:!0,gaGlobal:!1,gtmOverride:!1},c=e(n),u=[],p=!1,s=0;e.scrollDepth=function(h){function g(e,t,a,c){l?(l({event:"ScrollDistance",eventCategory:"Scroll Depth",eventAction:e,eventLabel:t,eventValue:1,eventNonInteraction:h.nonInteraction}),h.pixelDepth&&arguments.length>2&&a>s&&(s=a,l({event:"ScrollDistance",eventCategory:"Scroll Depth",eventAction:"Pixel Depth",eventLabel:D(a),eventValue:1,eventNonInteraction:h.nonInteraction})),h.userTiming&&arguments.length>3&&l({event:"ScrollTiming",eventCategory:"Scroll Depth",eventAction:e,eventLabel:t,eventTiming:c})):(r&&(n[i]("send","event","Scroll Depth",e,t,1,{nonInteraction:h.nonInteraction}),h.pixelDepth&&arguments.length>2&&a>s&&(s=a,n[i]("send","event","Scroll Depth","Pixel Depth",D(a),1,{nonInteraction:h.nonInteraction})),h.userTiming&&arguments.length>3&&n[i]("send","timing","Scroll Depth",e,c,t)),o&&(_gaq.push(["_trackEvent","Scroll Depth",e,t,1,h.nonInteraction]),h.pixelDepth&&arguments.length>2&&a>s&&(s=a,_gaq.push(["_trackEvent","Scroll Depth","Pixel Depth",D(a),1,h.nonInteraction])),h.userTiming&&arguments.length>3&&_gaq.push(["_trackTiming","Scroll Depth",e,c,t,100])))}function f(e){return{"25%":parseInt(.25*e,10),"50%":parseInt(.5*e,10),"75%":parseInt(.75*e,10),"100%":e-5}}function v(n,t,r){e.each(n,function(n,o){-1===e.inArray(n,u)&&t>=o&&(g("Percentage",n,t,r),u.push(n))})}function m(n,t,r){e.each(n,function(n,o){-1===e.inArray(o,u)&&e(o).length&&t>=e(o).offset().top&&(g("Elements",o,t,r),u.push(o))})}function D(e){return(250*Math.floor(e/250)).toString()}function d(){I()}function y(e,n){var t,r,o,i=null,l=0,a=function(){l=new Date,i=null,o=e.apply(t,r)};return function(){var c=new Date;l||(l=c);var u=n-(c-l);return t=this,r=arguments,0>=u?(clearTimeout(i),i=null,l=c,o=e.apply(t,r)):i||(i=setTimeout(a,u)),o}}function I(){p=!0,c.on("scroll.scrollDepth",y(function(){var r=e(t).height(),o=n.innerHeight?n.innerHeight:c.height(),i=c.scrollTop()+o,l=f(r),a=+new Date-S;return u.length>=h.elements.length+(h.percentage?4:0)?(c.off("scroll.scrollDepth"),void(p=!1)):(h.elements&&m(h.elements,i,a),void(h.percentage&&v(l,i,a)))},500))}var S=+new Date;h=e.extend({},a,h),e(t).height()<h.minHeight||(h.gaGlobal?(r=!0,i=h.gaGlobal):"function"==typeof ga?(r=!0,i="ga"):"function"==typeof __gaTracker&&(r=!0,i="__gaTracker"),"undefined"!=typeof _gaq&&"function"==typeof _gaq.push&&(o=!0),"function"==typeof h.eventHandler?l=h.eventHandler:"undefined"==typeof dataLayer||"function"!=typeof dataLayer.push||h.gtmOverride||(l=function(e){dataLayer.push(e)}),e.scrollDepth.reset=function(){u=[],s=0,c.off("scroll.scrollDepth"),I()},e.scrollDepth.addElements=function(n){"undefined"!=typeof n&&e.isArray(n)&&(e.merge(h.elements,n),p||I())},e.scrollDepth.removeElements=function(n){"undefined"!=typeof n&&e.isArray(n)&&e.each(n,function(n,t){var r=e.inArray(t,h.elements),o=e.inArray(t,u);-1!=r&&h.elements.splice(r,1),-1!=o&&u.splice(o,1)})},d())}}(jQuery,window,document);