!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.MagicGrid=e()}(this,function(){"use strict";var t=function(t){if(!t)throw new Error("No config object has been provided.");"boolean"!=typeof t.useTransform&&(t.useTransform=!0),"number"!=typeof t.gutter&&(t.gutter=25),t.container||e("container"),t.items||t.static||e("items or static")},e=function(t){throw new Error("Missing property '"+t+"' in MagicGrid config")},i=function(t){var e=t[0];for(var i of t)i.height<e.height&&(e=i);return e},n=function(e){t(e),e.container instanceof HTMLElement?(this.container=e.container,this.containerClass=e.container.className):(this.containerClass=e.container,this.container=document.querySelector(e.container)),this.items=this.container.children,this.static=e.static||!1,this.size=e.items,this.gutter=e.gutter,this.maxColumns=e.maxColumns||!1,this.useMin=e.useMin||!1,this.useTransform=e.useTransform,this.animate=e.animate||!1,this.started=!1,this.init()};return n.prototype.init=function(){if(this.ready()&&!this.started){this.container.style.position="relative";for(var t=0;t<this.items.length;t++){var e=this.items[t].style;e.position="absolute",this.animate&&(e.transition=(this.useTransform?"transform":"top, left")+" 0.2s ease")}this.started=!0}},n.prototype.colWidth=function(){return this.items[0].getBoundingClientRect().width+this.gutter},n.prototype.setup=function(){var t=this.container.getBoundingClientRect().width,e=this.colWidth(),i=Math.floor(t/e)||1,n=[];this.maxColumns&&i>this.maxColumns&&(i=this.maxColumns);for(var s=0;s<i;s++)n[s]={height:0,index:s};return{cols:n,wSpace:t-i*e+this.gutter}},n.prototype.nextCol=function(t,e){return this.useMin?i(t):t[e%t.length]},n.prototype.positionItems=function(){var t=this.setup(),e=t.cols,i=t.wSpace,n=0,s=this.colWidth();i=Math.floor(i/2);for(var o=0;o<this.items.length;o++){var r=this.nextCol(e,o),a=this.items[o],h=r.height?this.gutter:0,c=r.index*s+i+"px",u=r.height+h+"px";this.useTransform?a.style.transform="translate("+c+", "+u+")":(a.style.top=u,a.style.left=c),r.height+=a.getBoundingClientRect().height+h,r.height>n&&(n=r.height)}this.container.style.height=n+"px"},n.prototype.ready=function(){return!!this.static||this.items.length>=this.size},n.prototype.getReady=function(){var t=this,e=setInterval(function(){t.container=document.querySelector(t.containerClass),t.items=t.container.children,t.ready()&&(clearInterval(e),t.init(),t.listen())},100)},n.prototype.listen=function(){var t=this;if(this.ready()){var e;window.addEventListener("resize",function(){e||(e=setTimeout(function(){t.positionItems(),e=null},200))}),this.positionItems()}else this.getReady()},n});