https://viertewelleff.com/wp-content/plugins/martanda-premium/elem…/effects/assets/parallax.js?ver=3.4.0

1/*! UIkit 2.27.5 | http://www.getuikit.com | (c) 2014 YOOtheme | MIT License */
2!function(e){var t;window.UIkit2&&(t=e(UIkit2)),"function"==typeof define&&define.amd&&define("uikit-parallax",["uikit"],function(){return t||e(UIkit2)})}(function(e){"use strict";var t=[],a=!1,r=0,i=window.innerHeight,n=function(){r=e.$win.scrollTop(),window.requestAnimationFrame(function(){for(var e=0;e<t.length;e++)t[e].process()})};e.component("parallax",{defaults:{velocity:.5,target:!1,viewport:!1,media:!1},boot:function(){a=function(){var e,t=document.createElement("div"),a={WebkitTransform:"-webkit-transform",MSTransform:"-ms-transform",MozTransform:"-moz-transform",Transform:"transform"};for(var r in document.body.insertBefore(t,null),a)void 0!==t.style[r]&&(t.style[r]="translate3d(1px,1px,1px)",e=window.getComputedStyle(t).getPropertyValue(a[r]));return document.body.removeChild(t),void 0!==e&&e.length>0&&"none"!==e}(),e.$doc.on("scrolling.uk.document",n),e.$win.on("load resize orientationchange",e.Utils.debounce(function(){i=window.innerHeight,n()},50)),e.ready(function(t){e.$("[data-uk-parallax]",t).each(function(){var t=e.$(this);t.data("parallax")||e.parallax(t,e.Utils.options(t.attr("data-uk-parallax")))})})},init:function(){this.base=this.options.target?e.$(this.options.target):this.element,this.props={},this.velocity=this.options.velocity||1;var a=["target","velocity","viewport","plugins","media"];Object.keys(this.options).forEach(function(e){if(-1===a.indexOf(e)){var t,r,i,n,s=String(this.options[e]).split(",");e.match(/color/i)?(t=s[1]?s[0]:this._getStartValue(e),r=s[1]?s[1]:s[0],t||(t="rgba(255,255,255,0)")):(n=(t=parseFloat(s[1]?s[0]:this._getStartValue(e)))<(r=parseFloat(s[1]?s[1]:s[0]))?r-t:t-r,i=t<r?1:-1),this.props[e]={start:t,end:r,dir:i,diff:n}}}.bind(this)),t.push(this)},process:function(){if(this.options.media)switch(typeof this.options.media){case"number":if(window.innerWidth<this.options.media)return!1;break;case"string":if(window.matchMedia&&!window.matchMedia(this.options.media).matches)return!1}var e=this.percentageInViewport();!1!==this.options.viewport&&(e=0===this.options.viewport?1:e/this.options.viewport),this.update(e)},percentageInViewport:function(){var e,t,a=this.base.offset().top,n=this.base.outerHeight();return a>r+i?t=0:a+n<r?t=1:a+n<i?t=(r<i?r:r-i)/(a+n):(e=r+i-a,t=Math.round(e/((i+n)/100))/100),t},update:function(t){var r,i,n={transform:"",filter:""},s=t*(1-(this.velocity-this.velocity*t));s<0&&(s=0),s>1&&(s=1),void 0!==this._percent&&this._percent==s||(Object.keys(this.props).forEach(function(c){switch(r=this.props[c],0===t?i=r.start:1===t?i=r.end:void 0!==r.diff&&(i=r.start+r.diff*s*r.dir),"bg"!=c&&"bgp"!=c||this._bgcover||(this._bgcover=function(t,a,r){var i,n,s,o,c,l,p,f=new Image;return n=t.element.css({backgroundSize:"cover",backgroundRepeat:"no-repeat"}),i=n.css("background-image").replace(/^url\(/g,"").replace(/\)$/g,"").replace(/("|')/g,""),o=function(){var e=n.innerWidth(),i=n.innerHeight(),o="bg"==a?r.diff:r.diff/100*i;if(i+=o,(e+=Math.ceil(o*c))-o<s.w&&i<s.h)return t.element.css({backgroundSize:"auto"});e/c<i?(l=Math.ceil(i*c),p=i,i>window.innerHeight&&(l*=1.2,p*=1.2)):(l=e,p=Math.ceil(e/c)),n.css({backgroundSize:l+"px "+p+"px"}).data("bgsize",{w:l,h:p})},f.onerror=function(){},f.onload=function(){s={w:f.width,h:f.height},c=f.width/f.height,e.$win.on("load resize orientationchange",e.Utils.debounce(function(){o()},50)),o()},f.src=i,!0}(this,c,r)),c){case"x":n.transform+=a?" translate3d("+i+"px, 0, 0)":" translateX("+i+"px)";break;case"xp":n.transform+=a?" translate3d("+i+"%, 0, 0)":" translateX("+i+"%)";break;case"y":n.transform+=a?" translate3d(0, "+i+"px, 0)":" translateY("+i+"px)";break;case"yp":n.transform+=a?" translate3d(0, "+i+"%, 0)":" translateY("+i+"%)";break;case"rotate":n.transform+=" rotate("+i+"deg)";break;case"scale":n.transform+=" scale("+i+")";break;case"bg":n["background-position"]="50% "+i+"px";break;case"bgp":n["background-position"]="50% "+i+"%";break;case"color":case"background-color":case"border-color":n[c]=(l=r.start,p=r.end,f=s,l=o(l),p=o(p),function(e,t,a){var r="rgba("+parseInt(e[0]+a*(t[0]-e[0]),10)+","+parseInt(e[1]+a*(t[1]-e[1]),10)+","+parseInt(e[2]+a*(t[2]-e[2]),10)+","+(e&&t?parseFloat(e[3]+a*(t[3]-e[3])):1);return r+=")"}(l,p,f=f||0));break;case"blur":n.filter+=" blur("+i+"px)";break;case"hue":n.filter+=" hue-rotate("+i+"deg)";break;case"grayscale":n.filter+=" grayscale("+i+"%)";break;case"invert":n.filter+=" invert("+i+"%)";break;case"fopacity":n.filter+=" opacity("+i+"%)";break;case"saturate":n.filter+=" saturate("+i+"%)";break;case"sepia":n.filter+=" sepia("+i+"%)";break;default:n[c]=i}var l,p,f}.bind(this)),n.filter&&(n["-webkit-filter"]=n.filter),this.element.css(n),this._percent=s)},_getStartValue:function(e){var t=0;switch(e){case"scale":t=1;break;default:t=this.element.css(e)}return t||0}});var s={black:[0,0,0,1],blue:[0,0,255,1],brown:[165,42,42,1],cyan:[0,255,255,1],fuchsia:[255,0,255,1],gold:[255,215,0,1],green:[0,128,0,1],indigo:[75,0,130,1],khaki:[240,230,140,1],lime:[0,255,0,1],magenta:[255,0,255,1],maroon:[128,0,0,1],navy:[0,0,128,1],olive:[128,128,0,1],orange:[255,165,0,1],pink:[255,192,203,1],purple:[128,0,128,1],violet:[128,0,128,1],red:[255,0,0,1],silver:[192,192,192,1],white:[255,255,255,1],yellow:[255,255,0,1],transparent:[255,255,255,0]};function o(e){var t;return(t=/#([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})/.exec(e))?[parseInt(t[1],16),parseInt(t[2],16),parseInt(t[3],16),1]:(t=/#([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])/.exec(e))?[17*parseInt(t[1],16),17*parseInt(t[2],16),17*parseInt(t[3],16),1]:(t=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(e))?[parseInt(t[1]),parseInt(t[2]),parseInt(t[3]),1]:(t=/rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9\.]*)\s*\)/.exec(e))?[parseInt(t[1],10),parseInt(t[2],10),parseInt(t[3],10),parseFloat(t[4])]:s[e]||[255,255,255,0]}return e.parallax});