primereact
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PrimeReact is an open source UI library for React featuring a rich set of 90+ components, a theme designer, various theme alternatives such as Material, Bootstrap, Tailwind, premium templates and professional support. In addition, it integrates with Prime
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JavaScript
this.primereact=this.primereact||{},this.primereact.virtualscroller=function(e,t,r,n){"use strict";function o(e){if(e&&e.__esModule)return e;var t=Object.create(null);return e&&Object.keys(e).forEach((function(r){if("default"!==r){var n=Object.getOwnPropertyDescriptor(e,r);Object.defineProperty(t,r,n.get?n:{enumerable:!0,get:function(){return e[r]}})}})),t.default=e,Object.freeze(t)}var l=o(t);function i(){return i=Object.assign?Object.assign.bind():function(e){for(var t=1;t<arguments.length;t++){var r=arguments[t];for(var n in r)Object.prototype.hasOwnProperty.call(r,n)&&(e[n]=r[n])}return e},i.apply(this,arguments)}function s(e){return s="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e},s(e)}function c(e,t){if("object"!==s(e)||null===e)return e;var r=e[Symbol.toPrimitive];if(void 0!==r){var 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S={rows:l(a,o.itemSize[0]),cols:l(m,o.itemSize[1])},O={rows:i(S.rows,p.rows,y.rows,T.rows,I[0],w),cols:i(S.cols,p.cols,y.cols,T.cols,I[1],b)};d={rows:s(S.rows,O.rows,p.rows,0,0,I[0],w),cols:s(S.cols,O.cols,p.cols,0,0,I[1],b)},g={rows:c(S.rows,d.rows,0,T.rows,I[0]),cols:c(S.cols,d.cols,0,T.cols,I[1],!0)},h=d.rows!==p.rows||g.rows!==y.rows||d.cols!==p.cols||g.cols!==y.cols||q.current,v={top:a,left:m}}}else{var z=u?m:a,j=C.current<=z;if(!o.appendOnly||o.appendOnly&&j){var E=l(z,o.itemSize);g=c(E,d=s(E,i(E,p,y,T,I,j),p,0,0,I,j),0,T,I),h=d!==p||g!==y||q.current,v=z}}return{first:d,last:g,isRangeChanged:h,scrollPos:v}},de=function(e){var t=pe(e),r=t.first,n=t.last,l=t.scrollPos;if(t.isRangeChanged){var i={first:r,last:n};if(me(i),d(r),b(n),C.current=l,o.onScrollIndexChange&&o.onScrollIndexChange(i),o.lazy&&te(r)){var 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e=H;o.lazy&&s.loading!==o.loading&&o.loading!==H&&(D(o.loading),e=o.loading),se(e)})),r.useUpdateEffect((function(){C.current=f?{top:0,left:0}:0}),[o.orientation]),l.useImperativeHandle(t,(function(){return{props:o,getElementRef:Z,scrollTo:re,scrollToIndex:ne,scrollInView:oe,getRenderedRange:le}}));var be=function(e){var t=ve(e,arguments.length>1&&void 0!==arguments[1]?arguments[1]:{}),r=n.ObjectUtils.getJSXElement(o.loadingTemplate,t);return l.createElement(l.Fragment,{key:e},r)},Se=function(e,t){var r=he(t),i=n.ObjectUtils.getJSXElement(o.itemTemplate,e,r);return l.createElement(l.Fragment,{key:r.index},i)};if(o.disabled){var Oe=n.ObjectUtils.getJSXElement(o.contentTemplate,{items:o.items,rows:o.items,columns:o.columns});return l.createElement(l.Fragment,null,o.children,Oe)}var ze=v.getOtherProps(o),je=n.classNames("p-virtualscroller",{"p-virtualscroller-inline":o.inline,"p-virtualscroller-both p-both-scroll":f,"p-virtualscroller-horizontal 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A.current=n.ObjectUtils.getRefElement(e)},items:ye(),getItemOptions:function(e){return he(e)},children:e,element:r,props:o,loading:H,getLoaderOptions:function(e,t){return ve(e,t)},loadingTemplate:o.loadingTemplate,itemSize:o.itemSize,rows:H?o.loaderDisabled?M:[]:ye(),columns:o.columns&&f||u?H&&o.loaderDisabled?f?M[0]:M:o.columns.slice(f?p.cols:p,f?y.cols:y):o.columns,vertical:c,horizontal:u,both:f};return n.ObjectUtils.getJSXElement(o.contentTemplate,i)}return r}(),Re=o.showSpacer?l.createElement("div",{ref:F,style:J.current,className:"p-virtualscroller-spacer"}):null;return l.createElement("div",i({ref:N,className:je,tabIndex:o.tabIndex,style:o.style},ze,{onScroll:function(e){o.onScroll&&o.onScroll(e),o.delay?(V.current&&clearTimeout(V.current),te(p)&&(!H&&o.showLoader&&(pe(e).isRangeChanged||o.step&&te(p))&&D(!0),V.current=setTimeout((function(){de(e),!H||!o.showLoader||o.lazy&&void 0!==o.loading||(D(!1),z(ee(p)))}),o.delay))):de(e)}}),Ee,Re,Te)})));return b.displayName="VirtualScroller",e.VirtualScroller=b,Object.defineProperty(e,"__esModule",{value:!0}),e}({},React,primereact.hooks,primereact.utils);