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\n":"
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r,i="",o=this.rules,s=0,a=e.length;s=4)return!1;if(62!==e.src.charCodeAt(O++))return!1;if(i)return!0;for(u=f=e.sCount[t]+O-(e.bMarks[t]+e.tShift[t]),32===e.src.charCodeAt(O)?(O++,u++,f++,o=!1,w=!0):9===e.src.charCodeAt(O)?(w=!0,(e.bsCount[t]+f)%4==3?(O++,u++,f++,o=!1):o=!0):w=!1,v=[e.bMarks[t]],e.bMarks[t]=O;O=E,b=[e.sCount[t]],e.sCount[t]=f-u,_=[e.tShift[t]],e.tShift[t]=O-e.bMarks[t],k=e.md.block.ruler.getRules("blockquote"),y=e.parentType,e.parentType="blockquote",d=t+1;d=E));d++)if(62!==e.src.charCodeAt(O++)||c){if(h)break;for(x=!1,a=0,l=k.length;a=E,m.push(e.bsCount[d]),e.bsCount[d]=e.sCount[d]+1+(w?1:0),b.push(e.sCount[d]),e.sCount[d]=f-u,_.push(e.tShift[d]),e.tShift[d]=O-e.bMarks[d]}for(g=e.blkIndent,e.blkIndent=0,C=e.push("blockquote_open","blockquote",1),C.markup=">",C.map=p=[t,0],e.md.block.tokenize(e,t,d),C=e.push("blockquote_close","blockquote",-1),C.markup=">",e.lineMax=S,e.parentType=y,p[1]=e.line,a=0;a<_.length;a++)e.bMarks[a+t]=v[a],e.tShift[a+t]=_[a],e.sCount[a+t]=b[a],e.bsCount[a+t]=m[a];return e.blkIndent=g,!0}},{"../common/utils":4}],19:[function(e,t,n){"use strict";t.exports=function(e,t,n){var r,i,o;if(e.sCount[t]-e.blkIndent<4)return!1;for(i=r=t+1;r=4))break;r++,i=r}return e.line=i,o=e.push("code_block","code",0),o.content=e.getLines(t,i,4+e.blkIndent,!0),o.map=[t,e.line],!0}},{}],20:[function(e,t,n){"use strict";t.exports=function(e,t,n,r){var i,o,s,a,u,c,l,h=!1,p=e.bMarks[t]+e.tShift[t],d=e.eMarks[t];if(e.sCount[t]-e.blkIndent>=4)return!1;if(p+3>d)return!1;if(126!==(i=e.src.charCodeAt(p))&&96!==i)return!1;if(u=p,p=e.skipChars(p,i),(o=p-u)<3)return!1;if(l=e.src.slice(u,p),s=e.src.slice(p,d),s.indexOf(String.fromCharCode(i))>=0)return!1;if(r)return!0;for(a=t;!(++a>=n||(p=u=e.bMarks[a]+e.tShift[a],d=e.eMarks[a],p=4||(p=e.skipChars(p,i))-u=4)return!1;if(35!==(o=e.src.charCodeAt(c))||c>=l)return!1;for(s=1,o=e.src.charCodeAt(++c);35===o&&c6||cc&&r(e.src.charCodeAt(a-1))&&(l=a),e.line=t+1,u=e.push("heading_open","h"+String(s),1),u.markup="########".slice(0,s),u.map=[t,e.line],u=e.push("inline","",0),u.content=e.src.slice(c,l).trim(),u.map=[t,e.line],u.children=[],u=e.push("heading_close","h"+String(s),-1),u.markup="########".slice(0,s),0))}},{"../common/utils":4}],22:[function(e,t,n){"use strict";var r=e("../common/utils").isSpace;t.exports=function(e,t,n,i){var o,s,a,u,c=e.bMarks[t]+e.tShift[t],l=e.eMarks[t];if(e.sCount[t]-e.blkIndent>=4)return!1;if(42!==(o=e.src.charCodeAt(c++))&&45!==o&&95!==o)return!1;for(s=1;c|$))/i,/<\/(script|pre|style)>/i,!0],[/^/,!0],[/^<\?/,/\?>/,!0],[/^/,!0],[/^/,!0],[new RegExp("^|$))","i"),/^$/,!0],[new RegExp(i.source+"\\s*$"),/^$/,!1]];t.exports=function(e,t,n,r){var i,s,a,u,c=e.bMarks[t]+e.tShift[t],l=e.eMarks[t];if(e.sCount[t]-e.blkIndent>=4)return!1;if(!e.md.options.html)return!1;if(60!==e.src.charCodeAt(c))return!1;for(u=e.src.slice(c,l),i=0;i=4)return!1;for(p=e.parentType,e.parentType="paragraph";d3)){if(e.sCount[d]>=e.blkIndent&&(u=e.bMarks[d]+e.tShift[d],c=e.eMarks[d],u=c))){l=61===h?1:2;break}if(!(e.sCount[d]<0)){for(i=!1,o=0,s=f.length;o=o)return-1;if((n=e.src.charCodeAt(i++))<48||n>57)return-1;for(;;){if(i>=o)return-1;if(!((n=e.src.charCodeAt(i++))>=48&&n<=57)){if(41===n||46===n)break;return-1}if(i-r>=10)return-1}return i=4)return!1;if(a&&"paragraph"===e.parentType&&e.tShift[t]>=e.blkIndent&&(F=!0),(T=i(e,t))>=0){if(f=!0,R=e.bMarks[t]+e.tShift[t],_=Number(e.src.substr(R,T-R-1)),F&&1!==_)return!1}else{if(!((T=r(e,t))>=0))return!1;f=!1}if(F&&e.skipSpaces(T)>=e.eMarks[t])return!1;if(b=e.src.charCodeAt(T-1),a)return!0;for(y=e.tokens.length,f?(L=e.push("ordered_list_open","ol",1),1!==_&&(L.attrs=[["start",_]])):L=e.push("bullet_list_open","ul",1),L.map=g=[t,0],L.markup=String.fromCharCode(b),x=t,P=!1,D=e.md.block.ruler.getRules("list"),O=e.parentType,e.parentType="list";x=w?1:k-d,p>4&&(p=1),h=d+p,L=e.push("list_item_open","li",1),L.markup=String.fromCharCode(b),L.map=v=[t,0],C=e.blkIndent,A=e.tight,E=e.tShift[t],S=e.sCount[t],e.blkIndent=h,e.tight=!0,e.tShift[t]=c-e.bMarks[t],e.sCount[t]=k,c>=w&&e.isEmpty(t+1)?e.line=Math.min(e.line+2,n):e.md.block.tokenize(e,t,n,!0),e.tight&&!P||(N=!1),P=e.line-t>1&&e.isEmpty(e.line-1),e.blkIndent=C,e.tShift[t]=E,e.sCount[t]=S,e.tight=A,L=e.push("list_item_close","li",-1),L.markup=String.fromCharCode(b),x=t=e.line,v[1]=x,c=e.bMarks[t],x>=n)break;if(e.sCount[x]3||e.sCount[u]<0)){for(r=!1,i=0,o=c.length;i=4)return!1;if(91!==e.src.charCodeAt(k))return!1;for(;++k3||e.sCount[S]<0)){for(b=!1,h=0,p=_.length;h0&&this.level++,this.tokens.push(r),r},r.prototype.isEmpty=function(e){return this.bMarks[e]+this.tShift[e]>=this.eMarks[e]},r.prototype.skipEmptyLines=function(e){for(var t=this.lineMax;et;)if(!o(this.src.charCodeAt(--e)))return e+1;return e},r.prototype.skipChars=function(e,t){for(var n=this.src.length;en;)if(t!==this.src.charCodeAt(--e))return e+1;return e},r.prototype.getLines=function(e,t,n,r){var i,s,a,u,c,l,h,p=e;if(e>=t)return"";for(l=new Array(t-e),i=0;pn?new Array(s-n+1).join(" ")+this.src.slice(u,c):this.src.slice(u,c)}return l.join("")},r.prototype.Token=i,t.exports=r},{"../common/utils":4,"../token":51}],29:[function(e,t,n){"use strict";function r(e,t){var n=e.bMarks[t]+e.blkIndent,r=e.eMarks[t];return e.src.substr(n,r-n)}function i(e){var t,n=[],r=0,i=e.length,o=0,s=0,a=!1,u=0;for(t=e.charCodeAt(r);rn)return!1;if(h=t+1,e.sCount[h]=4)return!1;if((c=e.bMarks[h]+e.tShift[h])>=e.eMarks[h])return!1;if(124!==(a=e.src.charCodeAt(c++))&&45!==a&&58!==a)return!1;for(;c=4)return!1;if(p=i(u.replace(/^\||\|$/g,"")),(d=p.length)>v.length)return!1;if(s)return!0;for(f=e.push("table_open","table",1),f.map=g=[t,0],f=e.push("thead_open","thead",1),f.map=[t,t+1],f=e.push("tr_open","tr",1),f.map=[t,t+1],l=0;l=4);h++){for(p=i(u.replace(/^\||\|$/g,"")),f=e.push("tr_open","tr",1),l=0;l\s]/i.test(e)}function i(e){return/^<\/a\s*>/i.test(e)}var o=e("../common/utils").arrayReplaceAt;t.exports=function(e){var 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e.Token("link_close","a",-1),u.level=--v,u.markup="linkify",u.info="auto",l.push(u),f=_[h].lastIndex);f=0;t--)n=e[t],"text"!==n.type||i||(n.content=n.content.replace(/$(c|tm|r|p)$/gi,r)),"link_open"===n.type&&"auto"===n.info&&i--,"link_close"===n.type&&"auto"===n.info&&i++}function o(e){var t,n,r=0;for(t=e.length-1;t>=0;t--)n=e[t],"text"!==n.type||r||s.test(n.content)&&(n.content=n.content.replace(/\+-/g,"�").replace(/\.{2,}/g,"�").replace(/([?!])\u2026/g,"$1..").replace(/([?!]){4,}/g,"$1$1$1").replace(/,{2,}/g,",").replace(/(^|[^-])---([^-]|$)/gm,"$1�$2").replace(/(^|\s)--(\s|$)/gm,"$1�$2").replace(/(^|[^-\s])--([^-\s]|$)/gm,"$1�$2")),"link_open"===n.type&&"auto"===n.info&&r--,"link_close"===n.type&&"auto"===n.info&&r++}var s=/\+-|\.\.|\?\?\?\?|!!!!|,,|--/,a=/$(c|tm|r|p)$/i,u={c:"�",r:"�",p:"�",tm:"�"};t.exports=function(e){var t;if(e.md.options.typographer)for(t=e.tokens.length-1;t>=0;t--)"inline"===e.tokens[t].type&&(a.test(e.tokens[t].content)&&i(e.tokens[t].children),s.test(e.tokens[t].content)&&o(e.tokens[t].children))}},{}],35:[function(e,t,n){"use strict";function r(e,t,n){return e.substr(0,t)+n+e.substr(t+1)}function i(e,t){var n,i,u,l,h,p,d,f,v,m,g,y,b,_,w,x,k,C,S,O,E;for(S=[],n=0;n=0&&!(S[k].level<=d);k--);if(S.length=k+1,"text"===i.type){u=i.content,h=0,p=u.length;e:for(;h=0)v=u.charCodeAt(l.index-1);else for(k=n-1;k>=0;k--)if("text"===e[k].type){v=e[k].content.charCodeAt(e[k].content.length-1);break}if(m=32,h=48&&v<=57&&(x=w=!1),w&&x&&(w=!1,x=y),w||x){if(x)for(k=S.length-1;k>=0&&(f=S[k],!(S[k].level=0;t--)"inline"===e.tokens[t].type&&u.test(e.tokens[t].content)&&i(e.tokens[t].children,e)}},{"../common/utils":4}],36:[function(e,t,n){"use strict";function r(e,t,n){this.src=e,this.env=n,this.tokens=[],this.inlineMode=!1,this.md=t}var i=e("../token");r.prototype.Token=i,t.exports=r},{"../token":51}],37:[function(e,t,n){"use strict";var r=/^<([a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)>/,i=/^<([a-zA-Z][a-zA-Z0-9+.\-]{1,31}):([^<>\x00-\x20]*)>/;t.exports=function(e,t){var n,o,s,a,u,c,l=e.pos;return 60===e.src.charCodeAt(l)&&(n=e.src.slice(l),!(n.indexOf(">")<0||(i.test(n)?(o=n.match(i),a=o[0].slice(1,-1),u=e.md.normalizeLink(a),!e.md.validateLink(u)||(t||(c=e.push("link_open","a",1),c.attrs=[["href",u]],c.markup="autolink",c.info="auto",c=e.push("text","",0),c.content=e.md.normalizeLinkText(a),c=e.push("link_close","a",-1),c.markup="autolink",c.info="auto"),e.pos+=o[0].length,0)):!r.test(n)||(s=n.match(r),a=s[0].slice(1,-1),u=e.md.normalizeLink("mailto:"+a),!e.md.validateLink(u)||(t||(c=e.push("link_open","a",1),c.attrs=[["href",u]],c.markup="autolink",c.info="auto",c=e.push("text","",0),c.content=e.md.normalizeLinkText(a),c=e.push("link_close","a",-1),c.markup="autolink",c.info="auto"),e.pos+=s[0].length,0)))))}},{}],38:[function(e,t,n){"use strict";t.exports=function(e,t){var n,r,i,o,s,a,u=e.pos;if(96!==e.src.charCodeAt(u))return!1;for(n=u,u++,r=e.posMax;u=0;){if(i=o[n],i.open&&i.marker===r.marker&&i.end<0&&i.level===r.level){var a=(i.close||r.open)&&void 0!==i.length&&void 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n,o,s,a,u,c,l,h,p,d,f,v,m,g="",y=e.pos,b=e.posMax;if(33!==e.src.charCodeAt(e.pos))return!1;if(91!==e.src.charCodeAt(e.pos+1))return!1;if(c=e.pos+2,(u=e.md.helpers.parseLinkLabel(e,e.pos+1,!1))<0)return!1;if((l=u+1)=b)return!1;for(m=l,p=e.md.helpers.parseLinkDestination(e.src,l,e.posMax),p.ok&&(g=e.md.normalizeLink(p.str),e.md.validateLink(g)?l=p.pos:g=""),m=l;l=b||41!==e.src.charCodeAt(l))return e.pos=y,!1;l++}else{if(void 0===e.env.references)return!1;if(l=0?a=e.src.slice(m,l++):l=u+1):l=u+1,a||(a=e.src.slice(c,u)),!(h=e.env.references[r(a)]))return e.pos=y,!1;g=h.href,d=h.title}return t||(s=e.src.slice(c,u),e.md.inline.parse(s,e.md,e.env,v=[]),f=e.push("image","img",0),f.attrs=n=[["src",g],["alt",""]],f.children=v,f.content=s,d&&n.push(["title",d])),e.pos=l,e.posMax=b,!0}},{"../common/utils":4}],45:[function(e,t,n){"use strict";var r=e("../common/utils").normalizeReference,i=e("../common/utils").isSpace;t.exports=function(e,t){var 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t&&"function"!=typeof t?e:t}function p(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}function d(e,t,n,r,i){var o={};return Object.keys(r).forEach(function(e){o[e]=r[e]}),o.enumerable=!!o.enumerable,o.configurable=!!o.configurable,("value"in o||o.initializer)&&(o.writable=!0),o=n.slice().reverse().reduce(function(n,r){return r(e,t,n)||n},o),i&&void 0!==o.initializer&&(o.value=o.initializer?o.initializer.call(i):void 0,o.initializer=void 0),void 0===o.initializer&&(Object.defineProperty(e,t,o),o=null),o}Object.defineProperty(e,"__esModule",{value:!0}),e.VirtualRepeat=void 0;var f,v,m,g,y,b;e.VirtualRepeat=(f=(0,r.customAttribute)("virtual-repeat"),v=(0,t.inject)(o.DOM.Element,r.BoundViewFactory,r.TargetInstruction,r.ViewSlot,r.ViewResources,n.ObserverLocator,u.VirtualRepeatStrategyLocator,c.TemplateStrategyLocator,a.DomHelper),f(m=(0,r.templateController)(m=v((g=function(e){function t(t,n,r,o,s,a,u,c,p){var d=h(this,e.call(this,{local:"item",viewsRequireLifecycle:(0,i.viewsRequireLifecycle)(n)}));return d._first=0,d._previousFirst=0,d._viewsLength=0,d._lastRebind=0,d._topBufferHeight=0,d._bottomBufferHeight=0,d._bufferSize=5,d._scrollingDown=!1,d._scrollingUp=!1,d._switchedDirection=!1,d._isAttached=!1,d._ticking=!1,d._fixedHeightContainer=!1,d._hasCalculatedSizes=!1,d._isAtTop=!0,d._calledGetMore=!1,l(d,"items",y,d),l(d,"local",b,d),d.element=t,d.viewFactory=n,d.instruction=r,d.viewSlot=o,d.lookupFunctions=s.lookupFunctions,d.observerLocator=a,d.strategyLocator=u,d.templateStrategyLocator=c,d.sourceExpression=(0,i.getItemsSourceExpression)(d.instruction,"virtual-repeat.for"),d.isOneTime=(0,i.isOneTime)(d.sourceExpression),d.domHelper=p,d}return p(t,e),t.prototype.attached=function(){var e=this;this._isAttached=!0;var t=this.element;this._itemsLength=this.items.length,this.templateStrategy=this.templateStrategyLocator.getStrategy(t),this.scrollContainer=this.templateStrategy.getScrollContainer(t),this.topBuffer=this.templateStrategy.createTopBufferElement(t),this.bottomBuffer=this.templateStrategy.createBottomBufferElement(t),this.itemsChanged(),this.scrollListener=function(){return e._onScroll()},this.calcDistanceToTopInterval=setInterval(function(){var t=e.distanceToTop;e.distanceToTop=e.domHelper.getElementDistanceToTopOfDocument(e.topBuffer),e.distanceToTop+=e.topBufferDistance,t!==e.distanceToTop&&e._handleScroll()},500),this.distanceToTop=this.domHelper.getElementDistanceToTopOfDocument(this.templateStrategy.getFirstElement(this.topBuffer)),this.topBufferDistance=this.templateStrategy.getTopBufferDistance(this.topBuffer),this.domHelper.hasOverflowScroll(this.scrollContainer)?(this._fixedHeightContainer=!0,this.scrollContainer.addEventListener("scroll",this.scrollListener)):document.addEventListener("scroll",this.scrollListener)},t.prototype.bind=function(e,t){this.scope={bindingContext:e,overrideContext:t}},t.prototype.call=function(e,t){this[e](this.items,t)},t.prototype.detached=function(){this.scrollContainer.removeEventListener("scroll",this.scrollListener),this._first=0,this._previousFirst=0,this._viewsLength=0,this._lastRebind=0,this._topBufferHeight=0,this._bottomBufferHeight=0,this._scrollingDown=!1,this._scrollingUp=!1,this._switchedDirection=!1,this._isAttached=!1,this._ticking=!1,this._hasCalculatedSizes=!1,this.templateStrategy.removeBufferElements(this.element,this.topBuffer,this.bottomBuffer),this.isLastIndex=!1,this.scrollContainer=null,this.scrollContainerHeight=null,this.distanceToTop=null,this.removeAllViews(!0),this.scrollHandler&&this.scrollHandler.dispose(),this._unsubscribeCollection(),clearInterval(this.calcDistanceToTopInterval),this._sizeInterval&&clearInterval(this._sizeInterval)},t.prototype.itemsChanged=function(){if(this._unsubscribeCollection(),this.scope){var e=!1,t=this._getIndexOfLastView(),n=this.items;if(this.strategy=this.strategyLocator.getStrategy(n),n.length>0&&0===this.viewCount()&&this.strategy.createFirstItem(this),this._itemsLength>=n.length&&(this._skipNextScrollHandle=!0,e=!0),this._checkFixedHeightContainer(),this._calcInitialHeights(n.length),this.isOneTime||this._observeInnerCollection()||this._observeCollection(),this.strategy.instanceChanged(this,n,this._first),this._lastRebind=this._first,e&&t>this.items.length-1)if("TBODY"===this.scrollContainer.tagName){var r=this.scrollContainer.parentNode.parentNode;r.scrollTop=r.scrollTop+this.viewCount()*this.itemHeight}else this.scrollContainer.scrollTop=this.scrollContainer.scrollTop+this.viewCount()*this.itemHeight;e||(this._previousFirst=this._first,this._scrollingDown=!0,this._scrollingUp=!1,this.isLastIndex=this._getIndexOfLastView()>=this.items.length-1),this._handleScroll()}},t.prototype.unbind=function(){this.scope=null,this.items=null,this._itemsLength=null},t.prototype.handleCollectionMutated=function(e,t){this._handlingMutations=!0,this._itemsLength=e.length,this.strategy.instanceMutated(this,e,t)},t.prototype.handleInnerCollectionMutated=function(e,t){var n=this;if(!this.ignoreMutation){this.ignoreMutation=!0;var r=this.sourceExpression.evaluate(this.scope,this.lookupFunctions);this.observerLocator.taskQueue.queueMicroTask(function(){return n.ignoreMutation=!1}),r===this.items?this.itemsChanged():this.items=r}},t.prototype._onScroll=function(){var e=this;this._ticking||this._handlingMutations||(requestAnimationFrame(function(){return e._handleScroll()}),this._ticking=!0),this._handlingMutations&&(this._handlingMutations=!1)},t.prototype._handleScroll=function(){if(this._isAttached){if(this._skipNextScrollHandle)return void(this._skipNextScrollHandle=!1);var e=this.itemHeight,t=this._fixedHeightContainer?this.scrollContainer.scrollTop:pageYOffset-this.distanceToTop;if(this._first=Math.floor(t/e),this._first=this._first<0?0:this._first,this._first>this.items.length-this.elementsInView&&(this._first=this.items.length-this.elementsInView),this._checkScrolling(),this._scrollingDown){var n=this._first-this._lastRebind;this._switchedDirection&&(n=this._isAtTop?this._first:this._bufferSize-(this._lastRebind-this._first)),this._isAtTop=!1,this._lastRebind=this._first;var r=this._moveViews(n),i=r0&&this._getMore(),this._switchedDirection=!1,this._topBufferHeight=this._topBufferHeight+i,this._bottomBufferHeight=this._bottomBufferHeight-i,this._bottomBufferHeight>=0&&this._adjustBufferHeights()}else if(this._scrollingUp){var o=this._lastRebind-this._first,s=void 0===this.isLastIndex;this._switchedDirection&&(o=this.isLastIndex?this.items.length-this._first-this.elementsInView:this._bufferSize-(this._first-this._lastRebind)),this.isLastIndex=!1,this._lastRebind=this._first;var a=this._moveViews(o);this.movedViewsCount=a;var u=a0){var c=!!(0===this.movedViewsCount&&s&&this._first<=0);this._getMore(c)}this._switchedDirection=!1,this._topBufferHeight=this._topBufferHeight-u,this._bottomBufferHeight=this._bottomBufferHeight+u,this._topBufferHeight>=0&&this._adjustBufferHeights()}this._previousFirst=this._first,this._ticking=!1}},t.prototype._getMore=function(e){var t=this;if((this.isLastIndex||0===this._first||e)&&!this._calledGetMore){var n=function(){t._calledGetMore=!0;var e=t.view(0)&&t.view(0).firstChild&&t.view(0).firstChild.au&&t.view(0).firstChild.au["infinite-scroll-next"]?t.view(0).firstChild.au["infinite-scroll-next"].instruction.attributes["infinite-scroll-next"]:void 0,n=t._first,r=0===t._bottomBufferHeight,i=t._isAtTop,o={topIndex:n,isAtBottom:r,isAtTop:i};if(t.scope.overrideContext.$scrollContext=o,void 0===e)return null;if("string"!=typeof e){if(e.sourceExpression)return t._calledGetMore=!1,e.sourceExpression.evaluate(t.scope);throw new Error("'infinite-scroll-next' must be a function or evaluate to one")}var s=t.view(0).firstChild.getAttribute("infinite-scroll-next"),a=t.scope.overrideContext.bindingContext[s];if("function"!=typeof a)throw new Error("'infinite-scroll-next' must be a function or evaluate to one");var u=a.call(t.scope.overrideContext.bindingContext,n,r,i);return u instanceof Promise?u.then(function(){t._calledGetMore=!1}):(t._calledGetMore=!1,null)};this.observerLocator.taskQueue.queueMicroTask(n)}},t.prototype._checkScrolling=function(){this._first>this._previousFirst&&(this._bottomBufferHeight>0||!this.isLastIndex)?(this._scrollingDown?this._switchedDirection=!1:(this._scrollingDown=!0,this._scrollingUp=!1,this._switchedDirection=!0),this._isScrolling=!0):this._first=0||!this._isAtTop)?(this._scrollingUp?this._switchedDirection=!1:(this._scrollingDown=!1,this._scrollingUp=!0,this._switchedDirection=!0),this._isScrolling=!0):this._isScrolling=!1},t.prototype._checkFixedHeightContainer=function(){this.domHelper.hasOverflowScroll(this.scrollContainer)&&(this._fixedHeightContainer=!0)},t.prototype._adjustBufferHeights=function(){this.topBuffer.style.height=this._topBufferHeight+"px",this.bottomBuffer.style.height=this._bottomBufferHeight+"px"},t.prototype._unsubscribeCollection=function(){this.collectionObserver&&(this.collectionObserver.unsubscribe(this.callContext,this),this.collectionObserver=null,this.callContext=null)},t.prototype._moveViews=function(e){for(var t=this,n=this._scrollingDown?function(e,t){return e+t}:function(e,t){return e-t},r=function(){return t._scrollingDown?t.isLastIndex:t._isAtTop},i=this.viewCount(),o=this._scrollingDown?0:i-1,a=this.items,u=this._scrollingDown?this._getIndexOfLastView()+1:this._getIndexOfFirstView()-1,c=0,l=e-2*i;c=a.length-1,this._isAtTop=p<=0,r()&&i>=a.length||(c>l&&(0,s.rebindAndMoveView)(this,h,p,this._scrollingDown),c++)}return e-(e-c)},t.prototype._getIndexOfLastView=function(){var e=this.view(this.viewCount()-1);return e?e.overrideContext.$index:-1},t.prototype._getLastViewItem=function(){var e=this.viewSlot.children;if(e.length){return e[e.length-1].bindingContext[this.local]}},t.prototype._getIndexOfFirstView=function(){return this.view(0)?this.view(0).overrideContext.$index:-1},t.prototype._calcInitialHeights=function(e){var t=this;if(!(this._viewsLength>0&&this._itemsLength===e||e<=0)){this._hasCalculatedSizes=!0;var n=this.view(0).lastChild;if(this.itemHeight=(0,s.calcOuterHeight)(n),this.itemHeight<=0)return void(this._sizeInterval=setInterval(function(){(0,s.calcOuterHeight)(n)>0&&(clearInterval(t._sizeInterval),t.itemsChanged())},500));this._itemsLength=e,this.scrollContainerHeight=this._fixedHeightContainer?this._calcScrollHeight(this.scrollContainer):document.documentElement.clientHeight,this.elementsInView=Math.ceil(this.scrollContainerHeight/this.itemHeight)+1,this._viewsLength=2*this.elementsInView+this._bufferSize;var r=this.itemHeight*e-this.itemHeight*this._viewsLength;if(r<0&&(r=0),this._topBufferHeight>=r)this._topBufferHeight=r,this._bottomBufferHeight=0,this._first=this._itemsLength-this._viewsLength,this._first<0&&(this._first=0);else{this._first=this._getIndexOfFirstView();var i=this._first*this.itemHeight;this._topBufferHeight=i,this._bottomBufferHeight=r-i,this._bottomBufferHeight<0&&(this._bottomBufferHeight=0)}this._adjustBufferHeights()}},t.prototype._calcScrollHeight=function(e){var t=void 0;return t=e.getBoundingClientRect().height,t-=(0,s.getStyleValue)(e,"borderTopWidth"),t-=(0,s.getStyleValue)(e,"borderBottomWidth")},t.prototype._observeInnerCollection=function(){var e=this._getInnerCollection(),t=this.strategyLocator.getStrategy(e);return!!t&&(this.collectionObserver=t.getCollectionObserver(this.observerLocator,e),!!this.collectionObserver&&(this.callContext="handleInnerCollectionMutated",this.collectionObserver.subscribe(this.callContext,this),!0))},t.prototype._getInnerCollection=function(){var e=(0,i.unwrapExpression)(this.sourceExpression);return e?e.evaluate(this.scope,null):null},t.prototype._observeCollection=function(){var e=this.items;this.collectionObserver=this.strategy.getCollectionObserver(this.observerLocator,e),this.collectionObserver&&(this.callContext="handleCollectionMutated",this.collectionObserver.subscribe(this.callContext,this))},t.prototype.viewCount=function(){return this.viewSlot.children.length},t.prototype.views=function(){return this.viewSlot.children},t.prototype.view=function(e){return this.viewSlot.children[e]},t.prototype.addView=function(e,t){var n=this.viewFactory.create();n.bind(e,t),this.viewSlot.add(n)},t.prototype.insertView=function(e,t,n){var r=this.viewFactory.create();r.bind(t,n),this.viewSlot.insert(e,r)},t.prototype.removeAllViews=function(e,t){return this.viewSlot.removeAll(e,t)},t.prototype.removeView=function(e,t,n){return this.viewSlot.removeAt(e,t,n)},t.prototype.updateBindings=function(e){for(var t=e.bindings.length;t--;)(0,i.updateOneTimeBinding)(e.bindings[t]);for(t=e.controllers.length;t--;)for(var n=e.controllers[t].boundProperties.length;n--;){var r=e.controllers[t].boundProperties[n].binding;(0,i.updateOneTimeBinding)(r)}},t}(i.AbstractRepeater),y=d(g.prototype,"items",[r.bindable],{enumerable:!0,initializer:null}),b=d(g.prototype,"local",[r.bindable],{enumerable:!0,initializer:null}),m=g))||m)||m)||m)}),define("aurelia-ui-virtualization/utilities",["exports","aurelia-templating-resources","aurelia-templating"],function(e,t,n){"use strict";function r(e){var t=void 0;return t=e.getBoundingClientRect().height,t+=a(e,"marginTop"),t+=a(e,"marginBottom")}function i(e,t){(t.parentElement||t.parentNode).insertBefore(e.lastChild,t)}function o(e,n){var r=e.viewSlot.children,i=r.length,o=e.items.length;n>0&&(n-=1);for(var s=e._topBufferHeight/e.itemHeight;ni;)o--,e.removeView(o,!0);for(var s=e.local,a=0;a0)return Promise.all(a).then(function(){o._handleAddedSplices(e,r,i),(0,n.updateVirtualOverrideContexts)(e,0)});this._handleAddedSplices(e,r,i),(0,n.updateVirtualOverrideContexts)(e,0)}},o.prototype._removeViewAt=function(e,r,i,o,s){var a=void 0,u=void 0,c=e.viewSlot,l=e.viewCount(),h=void 0,p=s>l;if(e._viewsLength<=o)return e._bottomBufferHeight=e._bottomBufferHeight-e.itemHeight,void e._adjustBufferHeights();if(this._isIndexBeforeViewSlot(e,c,r)||this._isIndexAfterViewSlot(e,c,r))this._isIndexBeforeViewSlot(e,c,r)?e._bottomBufferHeight>0?(e._bottomBufferHeight=e._bottomBufferHeight-e.itemHeight,(0,n.rebindAndMoveView)(e,e.view(0),e.view(0).overrideContext.$index,!0)):e._topBufferHeight=e._topBufferHeight-e.itemHeight:this._isIndexAfterViewSlot(e,c,r)&&(e._bottomBufferHeight=e._bottomBufferHeight-e.itemHeight);else{var d=this._getViewIndex(e,c,r);if(a=e.removeView(d,i),e.items.length>l){var f=void 0;if(e._bottomBufferHeight>e.itemHeight){if(h=l,p)f=o;else{var v=e._getLastViewItem();f=e.items.indexOf(v)+1}e._bottomBufferHeight=e._bottomBufferHeight-e.itemHeight}else e._topBufferHeight>0&&(h=0,f=e._getIndexOfFirstView()-1,e._topBufferHeight=e._topBufferHeight-e.itemHeight);var m=e.items[f];if(m){var g=(0,t.createFullOverrideContext)(e,m,f,e.items.length);u=e.viewFactory.create(),u.bind(g.bindingContext,g)}}}a instanceof Promise?a.then(function(){e.viewSlot.insert(h,u),e._adjustBufferHeights()}):u&&e.viewSlot.insert(h,u),e._adjustBufferHeights()},o.prototype._isIndexBeforeViewSlot=function(e,t,n){return this._getViewIndex(e,t,n)<0},o.prototype._isIndexAfterViewSlot=function(e,t,n){return this._getViewIndex(e,t,n)>e._viewsLength-1},o.prototype._getViewIndex=function(e,t,n){return 0===e.viewCount()?-1:n-e._topBufferHeight/e.itemHeight},o.prototype._handleAddedSplices=function(e,r,i){for(var o=r.length,s=e.viewSlot,a=0,u=i.length;a0;if(0===e.viewCount()||!this._isIndexBeforeViewSlot(e,s,l)&&!this._isIndexAfterViewSlot(e,s,l)||p){var d=(0,t.createFullOverrideContext)(e,r[l],l,o);e.insertView(l,d.bindingContext,d),e._hasCalculatedSizes?e.viewCount()>e._viewsLength&&(p?(e.removeView(0,!0,!0),e._topBufferHeight=e._topBufferHeight+e.itemHeight,e._adjustBufferHeights()):(e.removeView(e.viewCount()-1,!0,!0),e._bottomBufferHeight=e._bottomBufferHeight+e.itemHeight)):e._calcInitialHeights(1)}else this._isIndexBeforeViewSlot(e,s,l)?e._topBufferHeight=e._topBufferHeight+e.itemHeight:this._isIndexAfterViewSlot(e,s,l)&&(e._bottomBufferHeight=e._bottomBufferHeight+e.itemHeight,e.isLastIndex=!1)}e._adjustBufferHeights()},o}(t.ArrayRepeatStrategy)}),define("aurelia-ui-virtualization/template-strategy",["exports","aurelia-dependency-injection","aurelia-pal","aurelia-templating","./utilities","./dom-helper"],function(e,t,n,r,i,o){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.DefaultTemplateStrategy=e.TableStrategy=e.TemplateStrategyLocator=void 0;var s,a,u,c,l=(e.TemplateStrategyLocator=(s=(0,t.inject)(t.Container))(a=function(){function e(e){this.container=e}return e.prototype.getStrategy=function(e){return e.parentNode&&"tbody"===e.parentNode.localName?this.container.get(l):this.container.get(h)},e}())||a,e.TableStrategy=(u=(0,t.inject)(o.DomHelper))(c=function(){function e(e){this.tableCssReset=" display: block; width: auto; height: auto; margin: 0; padding: 0; border: none; border-collapse: inherit; border-spacing: 0; background-color: transparent; -webkit-border-horizontal-spacing: 0; -webkit-border-vertical-spacing: 0;",this.domHelper=e}return e.prototype.getScrollContainer=function(e){return e.parentNode},e.prototype.moveViewFirst=function(e,t){var r=this._getTbodyElement(t.nextSibling),o=r.firstChild,s=n.DOM.nextElementSibling(o);(0,i.insertBeforeNode)(e,s)},e.prototype.moveViewLast=function(e,t){var n=this.getLastElement(t).nextSibling,r=(8===n.nodeType&&n.data,n);(0,i.insertBeforeNode)(e,r)},e.prototype.createTopBufferElement=function(e){var t="ul"===e.parentNode.localName?"li":"div",r=n.DOM.createElement(t),i=e.parentNode.parentNode;return i.parentNode.insertBefore(r,i),r.innerHTML=" ",r},e.prototype.createBottomBufferElement=function(e){var t="ul"===e.parentNode.localName?"li":"div",r=n.DOM.createElement(t),i=e.parentNode.parentNode;return i.parentNode.insertBefore(r,i.nextSibling),r},e.prototype.removeBufferElements=function(e,t,n){t.parentNode.removeChild(t),n.parentNode.removeChild(n)},e.prototype.getFirstElement=function(e){return this._getTbodyElement(n.DOM.nextElementSibling(e)).firstChild},e.prototype.getLastElement=function(e){var t=this._getTbodyElement(e.previousSibling),n=t.children;return n[n.length-1]},e.prototype.getTopBufferDistance=function(e){var t=this._getTbodyElement(e.nextSibling);return this.domHelper.getElementDistanceToTopOfDocument(t)-this.domHelper.getElementDistanceToTopOfDocument(e)},e.prototype._getTbodyElement=function(e){for(var t=void 0,n=e.children,r=0,i=n.length;r