/**
 * sticky-sidebar-v2 - A JavaScript plugin for making smart and high performance sticky sidebars.
 * @version v1.1.0
 * @link https://github.com/blixhavn/sticky-sidebar-v2
 * @author Øystein Blixhavn
 * @license The MIT License (MIT)
**/
!function(t,e){"function"==typeof define&&define.amd?define(["exports"],e):"undefined"!=typeof exports?e(exports):(e(e={}),t.stickySidebar=e)}(this,function(t){"use strict";function n(t,e){for(var i=0;i<e.length;i++){var n=e[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}Object.defineProperty(t,"__esModule",{value:!0});var a,s,e=(s={topSpacing:0,bottomSpacing:0,containerSelector:!(a=".stickySidebar"),scrollContainer:!1,innerWrapperSelector:".inner-wrapper-sticky",stickyClass:"is-affixed",minWidth:!1},function(t,e,i){return e&&n(t.prototype,e),i&&n(t,i),t}(p,[{key:"initialize",value:function(){var i=this;if(this._setSupportFeatures(),this.options.innerWrapperSelector&&(this.sidebarInner=this.sidebar.querySelector(this.options.innerWrapperSelector),null===this.sidebarInner&&(this.sidebarInner=!1)),!this.sidebarInner){var t=document.createElement("div");for(t.setAttribute("class","inner-wrapper-sticky"),this.sidebar.appendChild(t);this.sidebar.firstChild!=t;)t.appendChild(this.sidebar.firstChild);this.sidebarInner=this.sidebar.querySelector(".inner-wrapper-sticky")}if(this.options.containerSelector){var e=document.querySelectorAll(this.options.containerSelector);if((e=Array.prototype.slice.call(e)).forEach(function(t,e){t.contains(i.sidebar)&&(i.container=t)}),!e.length)throw new Error("The container does not contains on the sidebar.")}this.scrollContainer=this.options.scrollContainer?document.querySelector(this.options.scrollContainer):void 0,"function"!=typeof this.options.topSpacing&&(this.options.topSpacing=parseInt(this.options.topSpacing)||0),"function"!=typeof this.options.bottomSpacing&&(this.options.bottomSpacing=parseInt(this.options.bottomSpacing)||0),this._widthBreakpoint(),this.calcDimensions(),this.stickyPosition(),this.bindEvents(),this._initialized=!0}},{key:"bindEvents",value:function(){var t,e=this;this.eventTarget=this.scrollContainer||window,this.eventTarget.addEventListener("resize",this,{passive:!0,capture:!1}),this.eventTarget.addEventListener("scroll",this,{passive:!0,capture:!1}),this.sidebar.addEventListener("update"+a,this),"undefined"!=typeof ResizeObserver&&((t=new ResizeObserver(function(){return e.handleEvent()})).observe(this.sidebarInner),t.observe(this.container))}},{key:"handleEvent",value:function(t){this.updateSticky(t)}},{key:"calcDimensions",value:function(){var t;this._breakpoint||((t=this.dimensions).containerTop=p.offsetRelative(this.container).top,t.containerHeight=this.container.clientHeight,t.containerBottom=t.containerTop+t.containerHeight,t.sidebarHeight=this.sidebarInner.offsetHeight,t.sidebarWidth=this.sidebarInner.offsetWidth,t.viewportHeight=window.innerHeight,t.maxTranslateY=t.containerHeight-t.sidebarHeight,this._calcDimensionsWithScroll())}},{key:"_calcDimensionsWithScroll",value:function(){var t=this.dimensions;t.sidebarLeft=p.offsetRelative(this.sidebar).left,this.scrollContainer?(t.viewportTop=this.scrollContainer.scrollTop,t.viewportLeft=this.scrollContainer.scrollLeft):(t.viewportTop=document.documentElement.scrollTop||document.body.scrollTop,t.viewportLeft=document.documentElement.scrollLeft||document.body.scrollLeft),t.viewportBottom=t.viewportTop+t.viewportHeight,t.topSpacing=this.options.topSpacing,t.bottomSpacing=this.options.bottomSpacing,"function"==typeof t.topSpacing&&(t.topSpacing=parseInt(t.topSpacing(this.sidebar))||0),"function"==typeof t.bottomSpacing&&(t.bottomSpacing=parseInt(t.bottomSpacing(this.sidebar))||0),"VIEWPORT-TOP"===this.affixedType?t.topSpacing<t.lastTopSpacing&&(t.translateY+=t.lastTopSpacing-t.topSpacing,this._reStyle=!0):"VIEWPORT-BOTTOM"===this.affixedType&&t.bottomSpacing<t.lastBottomSpacing&&(t.translateY+=t.lastBottomSpacing-t.bottomSpacing,this._reStyle=!0),t.lastTopSpacing=t.topSpacing,t.lastBottomSpacing=t.bottomSpacing}},{key:"isSidebarFitsViewport",value:function(){return this.dimensions.viewportHeight>=this.dimensions.lastBottomSpacing+this.dimensions.lastTopSpacing+this.dimensions.sidebarHeight}},{key:"observeScrollDir",value:function(){var t,e=this.dimensions;e.lastViewportTop!==e.viewportTop&&(t="down"===this.direction?Math.min:Math.max,e.viewportTop===t(e.viewportTop,e.lastViewportTop)&&(this.direction="down"===this.direction?"up":"down"))}},{key:"getAffixType",value:function(){this._calcDimensionsWithScroll();var t=this.dimensions,e=t.viewportTop+t.topSpacing,i=this.affixedType,i=e<=t.containerTop||t.containerHeight<=t.sidebarHeight?(t.translateY=0,"STATIC"):"up"===this.direction?this._getAffixTypeScrollingUp():this._getAffixTypeScrollingDown();return t.translateY=Math.max(0,t.translateY),t.translateY=Math.min(t.containerHeight,t.translateY),t.translateY=Math.round(t.translateY),t.lastViewportTop=t.viewportTop,i}},{key:"_getAffixTypeScrollingDown",value:function(){var t=this.dimensions,e=t.sidebarHeight+t.containerTop,i=t.viewportTop+t.topSpacing,n=t.viewportBottom-t.bottomSpacing,s=this.affixedType;return this.isSidebarFitsViewport()?t.sidebarHeight+i>=t.containerBottom?(t.translateY=t.containerBottom-e,s="CONTAINER-BOTTOM"):i>=t.containerTop&&(t.translateY=i-t.containerTop,s="VIEWPORT-TOP"):t.containerBottom<=n?(t.translateY=t.containerBottom-e,s="CONTAINER-BOTTOM"):e+t.translateY<=n?(t.translateY=n-e,s="VIEWPORT-BOTTOM"):t.containerTop+t.translateY<=i&&0!==t.translateY&&t.maxTranslateY!==t.translateY&&(s="VIEWPORT-UNBOTTOM"),s}},{key:"_getAffixTypeScrollingUp",value:function(){var t=this.dimensions,e=t.sidebarHeight+t.containerTop,i=t.viewportTop+t.topSpacing,n=t.viewportBottom-t.bottomSpacing,s=this.affixedType;return i<=t.translateY+t.containerTop?(t.translateY=i-t.containerTop,s="VIEWPORT-TOP"):t.containerBottom<=n?(t.translateY=t.containerBottom-e,s="CONTAINER-BOTTOM"):this.isSidebarFitsViewport()||t.containerTop<=i&&0!==t.translateY&&t.maxTranslateY!==t.translateY&&(s="VIEWPORT-UNBOTTOM"),s}},{key:"_getStyle",value:function(t){if(void 0!==t){var e={inner:{},outer:{}},i=this.dimensions;switch(t){case"VIEWPORT-TOP":e.inner={position:"fixed",top:i.topSpacing,left:i.sidebarLeft-i.viewportLeft,width:i.sidebarWidth};break;case"VIEWPORT-BOTTOM":e.inner={position:"fixed",top:"auto",left:i.sidebarLeft,bottom:i.bottomSpacing,width:i.sidebarWidth};break;case"CONTAINER-BOTTOM":case"VIEWPORT-UNBOTTOM":var n=this._getTranslate(0,i.translateY+"px");e.inner=n?{transform:n}:{position:"absolute",top:i.translateY,width:i.sidebarWidth}}switch(t){case"VIEWPORT-TOP":case"VIEWPORT-BOTTOM":case"VIEWPORT-UNBOTTOM":case"CONTAINER-BOTTOM":e.outer={height:i.sidebarHeight,position:"relative"}}return e.outer=p.extend({height:"",position:""},e.outer),e.inner=p.extend({position:"relative",top:"",left:"",bottom:"",width:"",transform:""},e.inner),e}}},{key:"stickyPosition",value:function(t){if(!this._breakpoint){t=this._reStyle||t||!1;this.options.topSpacing,this.options.bottomSpacing;var e=this.getAffixType(),i=this._getStyle(e);if((this.affixedType!=e||t)&&e){var n,s,t="affix."+e.toLowerCase().replace("viewport-","")+a;for(n in p.eventTrigger(this.sidebar,t),"STATIC"===e?p.removeClass(this.sidebar,this.options.stickyClass):p.addClass(this.sidebar,this.options.stickyClass),i.outer){var o="number"==typeof i.outer[n]?"px":"";this.sidebar.style[n]=i.outer[n]+o}for(s in i.inner){var r="number"==typeof i.inner[s]?"px":"";this.sidebarInner.style[s]=i.inner[s]+r}t="affixed."+e.toLowerCase().replace("viewport-","")+a;p.eventTrigger(this.sidebar,t)}else this._initialized&&(this.sidebarInner.style.left=i.inner.left);this.affixedType=e}}},{key:"_widthBreakpoint",value:function(){window.innerWidth<=this.options.minWidth?(this._breakpoint=!0,this.affixedType="STATIC",this.sidebar.removeAttribute("style"),p.removeClass(this.sidebar,this.options.stickyClass),this.sidebarInner.removeAttribute("style")):this._breakpoint=!1}},{key:"updateSticky",value:function(){var t,e=this,i=0<arguments.length&&void 0!==arguments[0]?arguments[0]:{};this._running||(this._running=!0,t=i.type,requestAnimationFrame(function(){"scroll"===t?(e._calcDimensionsWithScroll(),e.observeScrollDir(),e.stickyPosition()):(e._widthBreakpoint(),e.calcDimensions(),e.stickyPosition(!0)),e._running=!1}))}},{key:"_setSupportFeatures",value:function(){var t=this.support;t.transform=p.supportTransform(),t.transform3d=p.supportTransform(!0)}},{key:"_getTranslate",value:function(){var t=0<arguments.length&&void 0!==arguments[0]?arguments[0]:0,e=1<arguments.length&&void 0!==arguments[1]?arguments[1]:0;return this.support.transform3d?"translate3d("+t+", "+e+", "+(2<arguments.length&&void 0!==arguments[2]?arguments[2]:0)+")":!!this.support.translate&&"translate("+t+", "+e+")"}},{key:"destroy",value:function(){window.removeEventListener("resize",this,{capture:!1}),window.removeEventListener("scroll",this,{capture:!1}),this.sidebar.classList.remove(this.options.stickyClass),this.sidebar.style.minHeight="",this.sidebar.removeEventListener("update"+a,this);var t,e,i={inner:{},outer:{}};for(t in i.inner={position:"",top:"",left:"",bottom:"",width:"",transform:""},i.outer={height:"",position:""},i.outer)this.sidebar.style[t]=i.outer[t];for(e in i.inner)this.sidebarInner.style[e]=i.inner[e];this.options.resizeSensor&&"undefined"!=typeof ResizeSensor&&(ResizeSensor.detach(this.sidebarInner,this.handleEvent),ResizeSensor.detach(this.container,this.handleEvent))}}],[{key:"supportTransform",value:function(t){var i=!1,e=t?"perspective":"transform",t=e.charAt(0).toUpperCase()+e.slice(1),n=document.createElement("support").style;return(e+" "+["Webkit","Moz","O","ms"].join(t+" ")+t).split(" ").forEach(function(t,e){if(void 0!==n[t])return i=t,!1}),i}},{key:"eventTrigger",value:function(t,e,i){try{var n=new CustomEvent(e,{detail:i})}catch(t){(n=document.createEvent("CustomEvent")).initCustomEvent(e,!0,!0,i)}t.dispatchEvent(n)}},{key:"extend",value:function(t,e){var i,n={};for(i in t)void 0!==e[i]?n[i]=e[i]:n[i]=t[i];return n}},{key:"offsetRelative",value:function(t){var e={left:0,top:0};do{var i=t.offsetTop,n=t.offsetLeft}while(isNaN(i)||(e.top+=i),isNaN(n)||(e.left+=n),t="BODY"===t.tagName?t.parentElement:t.offsetParent);return e}},{key:"addClass",value:function(t,e){p.hasClass(t,e)||(t.classList?t.classList.add(e):t.className+=" "+e)}},{key:"removeClass",value:function(t,e){p.hasClass(t,e)&&(t.classList?t.classList.remove(e):t.className=t.className.replace(new RegExp("(^|\\b)"+e.split(" ").join("|")+"(\\b|$)","gi")," "))}},{key:"hasClass",value:function(t,e){return t.classList?t.classList.contains(e):new RegExp("(^| )"+e+"( |$)","gi").test(t.className)}},{key:"defaults",get:function(){return s}}]),p);function p(t){var e=this,i=1<arguments.length&&void 0!==arguments[1]?arguments[1]:{};if(!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,p),this.options=p.extend(s,i),this.sidebar="string"==typeof t?document.querySelector(t):t,void 0===this.sidebar)throw new Error("There is no specific sidebar element.");this.sidebarInner=!1,this.container=this.sidebar.parentElement,this.affixedType="STATIC",this.direction="down",this.support={transform:!1,transform3d:!1},this._initialized=!1,this._reStyle=!1,this._breakpoint=!1,this.dimensions={translateY:0,maxTranslateY:0,topSpacing:0,lastTopSpacing:0,bottomSpacing:0,lastBottomSpacing:0,sidebarHeight:0,sidebarWidth:0,containerTop:0,containerHeight:0,viewportHeight:0,viewportTop:0,lastViewportTop:0},["handleEvent"].forEach(function(t){e[t]=e[t].bind(e)}),this.initialize()}t.default=e,window.StickySidebar=e});