react-virtuoso - npm Package Compare versions

Comparing version 0.14.2 to 0.15.0

dist/react-virtuoso.cjs.production.min.js

@@ -1,2 +0,2 @@
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r.pipe(y(i,s)).subscribe((function(t){t[0]!==t[1].top||t[2]||setTimeout((function(){s.next(!0)}))})),o.pipe(y(s)).subscribe((function(t){t[1]||setTimeout((function(){n.next(e)}))})),{scrolledToTopMostItem$:s}}({scrollTo$:v,offsetList$:e,scrollToIndex$:p,scrollTop$:c,initialTopMostItemIndex:u}).scrolledToTopMostItem$;return a.pipe(y(m)).subscribe((function(t){!t[0][0]&&t[1]&&(d.next(!1),g.next(!0))})),p.pipe(y(e,n,r,i,o,s),h((function(t){var e,n=t[0],r=t[1],i=t[2],o=t[3],s=t[4],u=t[6];"number"==typeof n&&(n={index:n,align:"start",behavior:"auto"});var a=n.index,l=n.align,f=void 0===l?"start":l;a=Math.max(0,a,Math.min(t[5]-1,a));var c=r.offsetOf(a);return"end"===f?c=c-s+r.itemAt(a).size:"center"===f?c=Math.round(c-s/2+r.itemAt(a).size/2):-1===o.indexOf(a)&&(c-=i),g.next(!1),{top:Math.min(c,Math.floor(u-s)),behavior:(e=n.behavior,null!=e?e:"auto")}}))).subscribe(v.next),c.pipe(y(g)).subscribe((function(t){t[1]||(g.next(!0),d.next(!0))})),e.pipe(y(d,p)).subscribe((function(t){t[1]&&p.next(t[2])})),{scrollToIndex$:p,scrollTo$:v,scrolledToTopMostItem$:m}}({initialTopMostItemIndex:s,scrollTop$:$,offsetList$:O,viewportHeight$:d,totalHeight$:F,stickyItems$:E,totalCount$:V,topListHeight$:R,heightsChanged$:P}),G=q.scrollToIndex$,U=q.scrollTo$,K=function(t){var e=t.overscan,n=t.viewportHeight$,r=t.scrollTop$,i=t.topListHeight$,o=t.footerHeight$,s=t.minListIndex$,u=t.totalCount$,a=t.offsetList$,p=t.scrolledToTopMostItem$,d=t.transposer$,g=t.totalHeight$,x=l(0),$=f(),I=l([]),C=l(0);c(r,g,n).pipe(h((function(t){return Math.max(0,Math.min(t[0],t[1]-t[2]))}))).subscribe(C.next),c(n,C,i,x,o,s,u,a,p,d).pipe(m((function(t,n){var r=n[0],i=n[1],o=n[2],s=n[3],u=n[4],a=n[5],l=n[6],f=n[7],c=n[8],h=n[9],p=t.length;if(0===l)return[];var d=w(t),g=d-i+s-u-o,v=Math.max(l-1,0);if((g<r||p>0&&(t[0].index<a||t[p-1].index>v))&&(t=h.transpose(f.range(i,i+r+2*e-1,a,v))),d>i){var m=Math.max(i-2*e,0);t=h.transpose(f.range(m,i+r-1,a,v))}return t.length>1&&!c?[]:t}),[]),v()).subscribe(I.next);var T=c(I,r,i).pipe(h((function(t){return w(t[0])}))),b=0;return I.pipe(h((function(t){return t.length?t[t.length-1].index:0}))).pipe(y(u)).subscribe((function(t){var e=t[0],n=t[1];0!==n&&e===n-1&&b!==e&&(b=e,$.next(e))})),{list$:I,listOffset$:T,listHeight$:x,endReached$:$}}({overscan:n,viewportHeight$:d,scrollTop$:$,totalHeight$:F,topListHeight$:R,footerHeight$:W,minListIndex$:S,totalCount$:V,offsetList$:O,scrolledToTopMostItem$:q.scrolledToTopMostItem$,transposer$:a}),Y=K.listHeight$,J=K.list$,Q=K.listOffset$,X=K.endReached$,Z=function(t){var e=t.offsetList$,n=t.scrollTop$,r=t.scrollTo$,i=f(),o=l(!1);return i.pipe(y(e,n,o)).subscribe((function(t){var n=t[0],i=t[1],s=t[2];t[3]||i.empty()||(o.next(!0),e.next(i.adjustForPrependedItems(n)),setTimeout((function(){r.next({top:n*i.getDefaultSize()+s}),o.next(!1)})))})),{adjustForPrependedItems$:i,adjustmentInProgress$:o}}({offsetList$:O,scrollTop$:$,scrollTo$:U}),tt=Z.adjustForPrependedItems$,et=Z.adjustmentInProgress$,nt=function(t){var e=t.list$,n=t.offsetList$,r=t.scrollTop$,i=t.scrollTo$,o=l(null),s=l(Infinity);return n.pipe(y(s,r,e)).subscribe((function(t){var e=t[2],n=t[3];return t[0].configureMaxRangeSize(t[1],(function(){o.next({index:n[0].index,offset:e-n[0].offset})}))})),n.pipe(y(o)).subscribe((function(t){var e=t[1];if(null!==e){var n=t[0].offsetOf(e.index)+e.offset;i.next({top:n}),o.next(null)}})),{maxRangeSize$:s}}({scrollTo$:U,offsetList$:O,scrollTop$:$,list$:J}).maxRangeSize$,rt=function(t){var e=t.topList$,n=t.transposer$,r=t.viewportHeight$,i=t.totalCount$,o=t.offsetList$,s=l();return c(o,s,i,r).pipe(g((function(t){return t[1]>0&&t[3]>0})),y(n),h((function(t){var e=t[0],n=e[0],r=t[1],i=Math.max(0,Math.min(e[1]-1,e[2]));return r.transpose(n.indexRange(0,i))}))).subscribe(e.next),{topItemCount$:s}}({offsetList$:O,totalCount$:V,transposer$:a,viewportHeight$:d,topList$:T}).topItemCount$,it=function(t){var e=t.scrollToIndex$,n=t.scrolledToBottom$,r=t.totalCount$,i=l(!1);return c(i,r).pipe(y(n)).subscribe((function(t){var n=t[0],r=n[1];n[0]&&t[1]&&setTimeout((function(){e.next({index:r-1,align:"end",behavior:"auto"})}))})),{followOutput$:i}}({totalCount$:V,scrollToIndex$:G,scrolledToBottom$:D}).followOutput$,ot=Q.pipe(h((function(t){return-t}))),st=f();J.pipe(y(et),g((function(t){return 0!==t[0].length&&!t[1]})),h((function(t){var e=t[0];return{startIndex:e[0].index,endIndex:e[e.length-1].index}})),v((function(t,e){return!t||t.startIndex!==e.startIndex||t.endIndex!==e.endIndex}))).subscribe(st.next);var ut=J.pipe(v(),g((function(t){return t.length>0})),m((function(t,e){var n=t[0],r="same";return n.length&&(e[0].index<n[0].index?r="up":e[e.length-1].index>n[n.length-1].index&&(r="down")),[e,r]}),[[],"down"]),h((function(t){return t[1]})));P.pipe(y(ut,J,$),g((function(t){return t[0][0]&&"up"===t[1]&&t[2].length>0}))).subscribe((function(t){var e=t[2],n=t[3],r=e[e.length-1].offset,i=t[0][1].offsetOf(e[e.length-1].index);U.next({top:n+(i-r)})}));var at=function(t){var e,n,r=t.isScrolling$,i=t.scrollTop$,o=t.rangeChanged$,s=l(0),u=l(!1),a=l(void 0);return r.pipe(g((function(t){return!t})),p(0)).subscribe(s.next),i.pipe((function(t,r){e=t,n||(n=setTimeout((function(){n=void 0,r(e)}),100))}),m((function(t,e){return[t[1],e]}),[0,0]),h((function(t){return t[1]-t[0]}))).subscribe(s.next),s.pipe(y(a,u,o),g((function(t){return!!t[1]})),h((function(t){var e=t[0],n=t[1],r=t[2],i=t[3],o=n.enter;if(r){if((0,n.exit)(e,i))return!1}else if(o(e,i))return!0;return r})),v()).subscribe(u.next),c(u,s,o).pipe(y(a)).subscribe((function(t){var e=t[0];return 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e=t.target.scrollTop;f.current=e,null!==l.current?l.current===e&&(l.current=null,o(e)):o(e)}),[o]),h=n.useCallback((function(t){t?(t.addEventListener("scroll",c,{passive:!0}),a.current=t):a.current.removeEventListener("scroll",c)}),[c]);return s((function(t){f.current!==t.top&&("smooth"===t.behavior&&(l.current=t.top),a.current&&a.current.scrollTo(t))})),r.createElement("div",{ref:h,style:i,tabIndex:0,className:e},u)},W=function(t){var n=t.children,i=t.style,o=t.className,s=t.ScrollContainer,u=t.scrollTop,a=t.scrollTo;return r.createElement(void 0===s?V:s,{style:e.__assign(e.__assign({},O),i),reportScrollTop:u,scrollTo:a,className:o},n)},F=function(t){var e=t.render,i=n.useContext(o),s=i.isSeeking,u=i.topList,a=E(i.list,[]),l=E(u,[]),f=E(s,!1),c=[],h=0,p=[],d=l.reduce((function(t,e){return t+e.size}),0);return l.forEach((function(t,n){var r=t.index;p.push(r);var i={top:h+"px",marginTop:0===n?-d+"px":void 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e=t.fixedItemHeight,i=t.children,s=t.ListContainer,u=n.useContext(o),a=u.listHeight,l=u.itemHeights,f={marginTop:E(u.listOffset,0)+"px"},c=z(a,(function(){}),(function(t){if(!e){var n=function(t){for(var e=[],n=0,r=t.length;n<r;n++){var i=t.item(n);if(i&&void 0!==i.dataset.index){var o=parseInt(i.dataset.index),s=parseInt(i.dataset.knownSize),u=i.offsetHeight;if(u!==s){var a=e[e.length-1];0===e.length||a.size!==u||a.end!==o-1?e.push({start:o,end:o,size:u}):e[e.length-1].end++}}}return e}(t.children);l(n)}}));return r.createElement(s,{listRef:c,style:f},i)},G=function(t){var e=t.style,i=t.footer,s=t.item,u=t.fixedItemHeight,a=t.ScrollContainer,l=t.ListContainer,f=t.FooterContainer,c=t.className,h=n.useContext(o),p=h.scrollTo,d=h.scrollTop,g=h.viewportHeight,v=E(h.totalHeight,0),m=z(g);return r.createElement(W,{style:e,ScrollContainer:a,className:c,scrollTo:p,scrollTop:function(t){d(Math.max(t,0))}},r.createElement("div",{ref:m,style:P},r.createElement(q,{fixedItemHeight:u,ListContainer:l},r.createElement(F,{render:s}),i&&r.createElement(D,{footer:i,FooterContainer:f}))),r.createElement(j,{height:v}))},U=function(t){return r.createElement(o.Provider,{value:t.contextValue},r.createElement(G,{style:t.style||{},className:t.className,item:t.item,footer:t.footer,fixedItemHeight:void 0!==t.itemHeight,ScrollContainer:t.ScrollContainer,FooterContainer:t.FooterContainer,ListContainer:t.ListContainer||B}))},K=n.forwardRef((function(t,i){var o=n.useState(R(t))[0];n.useImperativeHandle(i,(function(){return{scrollToIndex:function(t){o.scrollToIndex(t)},adjustForPrependedItems:function(t){o.adjustForPrependedItems(t)}}}),[o]),n.useLayoutEffect((function(){return o.isScrolling(t.scrollingStateChange),o.atBottomStateChange(t.atBottomStateChange),o.endReached(t.endReached),o.topItemCount(t.topItems||0),o.totalCount(t.totalCount),t.initialItemCount&&o.initialItemCount(t.initialItemCount),o.itemsRendered(t.itemsRendered),o.totalListHeightChanged(t.totalListHeightChanged),o.followOutput(!!t.followOutput),o.maxRangeSize(t.maxHeightCacheSize||Infinity),o.rangeChanged(t.rangeChanged),o.scrollSeekConfiguration(t.scrollSeek),function(){o.itemsRendered(void 0),o.totalListHeightChanged(void 0)}}),[o,t.scrollingStateChange,t.atBottomStateChange,t.endReached,t.topItems,t.totalCount,t.initialItemCount,t.itemsRendered,t.totalListHeightChanged,t.followOutput,t.maxHeightCacheSize,t.rangeChanged,t.scrollSeek]);var s=n.useCallback((function(n,i){var o,s=i.key,u=i.renderPlaceholder,a=e.__rest(i,["key","renderPlaceholder"]),l=t.scrollSeek,f=t.computeItemKey,c=t.item,h=t.ItemContainer,p=void 0===h?"div":h;return f&&(s=f(n.index)),o=l&&u?r.createElement(l.placeholder,{height:a["data-known-size"],index:n.index}):c(n.index),r.createElement(p,e.__assign(e.__assign({},a),{key:s}),o)}),[t]);return r.createElement(U,{contextValue:o,style:t.style,className:t.className,item:s,footer:t.footer,itemHeight:t.itemHeight,ScrollContainer:t.ScrollContainer,FooterContainer:t.FooterContainer,ListContainer:t.ListContainer})}));K.displayName="Virtuoso";var Y=n.forwardRef((function(t,i){var o=n.useState(R(t))[0];n.useImperativeHandle(i,(function(){return{scrollToIndex:function(t){o.scrollToIndex(t)}}}),[o]),n.useLayoutEffect((function(){return o.endReached(t.endReached),o.rangeChanged(t.rangeChanged),o.atBottomStateChange(t.atBottomStateChange),o.isScrolling(t.scrollingStateChange),o.groupCounts(t.groupCounts),o.groupIndices(t.groupIndices),o.itemsRendered(t.itemsRendered),o.totalListHeightChanged(t.totalListHeightChanged),function(){o.itemsRendered(void 0),o.totalListHeightChanged(void 0)}}),[o,t.endReached,t.rangeChanged,t.atBottomStateChange,t.scrollingStateChange,t.groupCounts,t.groupIndices,t.itemsRendered,t.totalListHeightChanged]);var s=n.useCallback((function(n,i){var o=e.__rest(i,["renderPlaceholder"]),s=t.ItemContainer,u=t.GroupContainer||s;if("group"===n.type){var a=t.group(n.groupIndex);return r.createElement(u||"div",e.__assign({},o),a)}return a=t.item(n.transposedIndex,n.groupIndex),r.createElement(s||"div",e.__assign({},o),a)}),[t]);return r.createElement(U,{contextValue:o,style:t.style,className:t.className,item:s,footer:t.footer,itemHeight:t.itemHeight,ScrollContainer:t.ScrollContainer,FooterContainer:t.FooterContainer,ListContainer:t.ListContainer})}));Y.displayName="GroupedVirtuoso";var J=Math.ceil,Q=Math.floor,X=Math.min,Z=Math.max,tt=function(t){return J(t)-t<.03?J(t):Q(t)},et=function(){var t=l([0,0,void 0,void 0]),e=l(0),n=l(0),r=l(0),i=l([0,0]),o=l(0),s=l(0),u=f();c(t,n,r,e).pipe(y(i)).subscribe((function(t){var e=t[0],n=e[0],r=n[0],u=n[1],a=n[2],l=n[3],f=e[1],c=e[2],h=e[3],p=t[1];if(void 0!==a&&void 0!==l){if(0===h)return i.next([0,-1]),void s.next(0);var d=p[0],g=p[1],v=tt(r/a),m=function(t,e){return void 0===e&&(e=Q),e(t/v)},y=function(t){var e=t?[0,c]:[c,0],n=e[1],r=v*Q((f-e[0])/l),o=v*J((f+u+n)/l)-1;o=X(h-1,o),r=X(o,Z(0,r)),i.next([r,o]),s.next(m(r)*l)},x=l*m(d),$=l*m(g)+l;h<g-1?y(!0):x>f?y(!1):$<f+u&&y(!0),o.next(l*m(h,J))}}));var a=u.pipe(y(t,e),h((function(t){var e=t[0],n=t[1],r=n[0],i=n[1],o=n[2],s=n[3];if(void 0===o||void 0===s)return{top:0,behavior:"auto"};"number"==typeof e&&(e={index:e,align:"start"});var u=e.index,a=e.align,l=void 0===a?"start":a;u=Math.max(0,u,Math.min(t[2]-1,u));var f=tt(r/o),c=Q(u/f)*s;return"end"===l?c=c-i+s:"center"===l&&(c=Math.round(c-i/2+s/2)),{top:c,behavior:"auto"}}))),p=x(n),d=f(),g=0;return i.pipe(y(e)).subscribe((function(t){var e=t[0][1],n=t[1];0!==n&&e===n-1&&g!==e&&(g=e,d.next(e))})),{gridDimensions:L(t),totalCount:L(e),scrollTop:L(n),overscan:L(r),scrollToIndex:L(u),itemRange:M(i),totalHeight:M(o),listOffset:M(s),scrollTo:M(a),isScrolling:M(p),endReached:M(d)}},nt=function(t){function n(){var e=null!==t&&t.apply(this,arguments)||this;return e.state=et(),e}return e.__extends(n,t),n.getDerivedStateFromProps=function(t,e){return e.overscan(t.overscan||0),e.totalCount(t.totalCount),e.isScrolling(t.scrollingStateChange),e.endReached(t.endReached),null},n.prototype.scrollToIndex=function(t){this.state.scrollToIndex(t)},n.prototype.render=function(){return r.createElement(rt,e.__assign({},this.props,{engine:this.state}))},n}(r.PureComponent),rt=function(t){var e,o,s,u,a=t.ScrollContainer,l=t.ItemContainer,f=void 0===l?"div":l,c=t.ListContainer,h=void 0===c?"div":c,p=t.className,d=t.item,g=t.itemClassName,v=void 0===g?"virtuoso-grid-item":g,m=t.listClassName,y=void 0===m?"virtuoso-grid-list":m,x=t.engine,$=t.style,I=void 0===$?{height:"40rem"}:$,C=x.itemRange,T=x.listOffset,b=x.gridDimensions,k=x.scrollTo,w=x.scrollTop,H=E(x.totalHeight,0),S={marginTop:E(T,0)+"px"},M=E(C,[0,0]),L=(e=function(t){var e=t.element.firstChild.firstChild;b([t.width,t.height,e.offsetWidth,e.offsetHeight])},o=n.useRef(null),s=n.useRef([0,0]),u=new i((function(t){var n=t[0].contentRect,r=n.width,i=n.height;s.current[0]===r&&s.current[1]===i||(s.current=[r,i],e({element:t[0].target,width:Math.round(r),height:Math.round(i)}))})),function(t){t?(u.observe(t),o.current=t):(u.unobserve(o.current),o.current=null)});return r.createElement(W,{style:I,ScrollContainer:a,className:p,scrollTo:k,scrollTop:w},r.createElement("div",{ref:L,style:P},r.createElement(h,{style:S,className:y},function(t,e,n,i){for(var o=t[1],s=[],u=t[0];u<=o;u++)s.push(r.createElement(i,{key:u,className:n},e(u)));return s}(M,d,v,f))),r.createElement(j,{height:H}))};exports.GroupedVirtuoso=Y,exports.Virtuoso=K,exports.VirtuosoGrid=nt,exports.VirtuosoPresentation=U;
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r.pipe(y(i,s)).subscribe((function(t){t[0]!==t[1].top||t[2]||setTimeout((function(){s.next(!0)}))})),o.pipe(y(s)).subscribe((function(t){t[1]||setTimeout((function(){n.next(e)}))})),{scrolledToTopMostItem$:s}}({scrollTo$:v,offsetList$:e,scrollToIndex$:p,scrollTop$:c,initialTopMostItemIndex:u}).scrolledToTopMostItem$;return a.pipe(y(m)).subscribe((function(t){!t[0][0]&&t[1]&&(d.next(!1),g.next(!0))})),p.pipe(y(e,n,r,i,o,s),h((function(t){var e,n=t[0],r=t[1],i=t[2],o=t[3],s=t[4],u=t[6];"number"==typeof n&&(n={index:n,align:"start",behavior:"auto"});var a=n.index,l=n.align,f=void 0===l?"start":l;a=Math.max(0,a,Math.min(t[5]-1,a));var c=r.offsetOf(a);return"end"===f?c=c-s+r.itemAt(a).size:"center"===f?c=Math.round(c-s/2+r.itemAt(a).size/2):-1===o.indexOf(a)&&(c-=i),g.next(!1),{top:Math.min(c,Math.floor(u-s)),behavior:(e=n.behavior,null!=e?e:"auto")}}))).subscribe(v.next),c.pipe(y(g)).subscribe((function(t){t[1]||(g.next(!0),d.next(!0))})),e.pipe(y(d,p)).subscribe((function(t){t[1]&&p.next(t[2])})),{scrollToIndex$:p,scrollTo$:v,scrolledToTopMostItem$:m}}({initialTopMostItemIndex:s,scrollTop$:$,offsetList$:O,viewportHeight$:d,totalHeight$:F,stickyItems$:E,totalCount$:V,topListHeight$:R,heightsChanged$:P}),G=q.scrollToIndex$,U=q.scrollTo$,K=function(t){var e=t.overscan,n=t.viewportHeight$,r=t.scrollTop$,i=t.topListHeight$,o=t.footerHeight$,s=t.minListIndex$,u=t.totalCount$,a=t.offsetList$,p=t.scrolledToTopMostItem$,d=t.transposer$,g=t.totalHeight$,x=l(0),$=f(),I=l([]),C=l(0);c(r,g,n).pipe(h((function(t){return Math.max(0,Math.min(t[0],t[1]-t[2]))}))).subscribe(C.next),c(n,C,i,x,o,s,u,a,p,d).pipe(m((function(t,n){var r=n[0],i=n[1],o=n[2],s=n[3],u=n[4],a=n[5],l=n[6],f=n[7],c=n[8],h=n[9],p=t.length;if(0===l)return[];var d=w(t),g=d-i+s-u-o,v=Math.max(l-1,0);if((g<r||p>0&&(t[0].index<a||t[p-1].index>v))&&(t=h.transpose(f.range(i,i+r+2*e-1,a,v))),d>i){var m=Math.max(i-2*e,0);t=h.transpose(f.range(m,i+r-1,a,v))}return t.length>1&&!c?[]:t}),[]),v()).subscribe(I.next);var T=c(I,r,i).pipe(h((function(t){return w(t[0])}))),b=0;return I.pipe(h((function(t){return t.length?t[t.length-1].index:0}))).pipe(y(u)).subscribe((function(t){var e=t[0],n=t[1];0!==n&&e===n-1&&b!==e&&(b=e,$.next(e))})),{list$:I,listOffset$:T,listHeight$:x,endReached$:$}}({overscan:n,viewportHeight$:d,scrollTop$:$,totalHeight$:F,topListHeight$:R,footerHeight$:W,minListIndex$:S,totalCount$:V,offsetList$:O,scrolledToTopMostItem$:q.scrolledToTopMostItem$,transposer$:a}),Y=K.listHeight$,J=K.list$,Q=K.listOffset$,X=K.endReached$,Z=function(t){var e=t.offsetList$,n=t.scrollTop$,r=t.scrollTo$,i=f(),o=l(!1);return i.pipe(y(e,n,o)).subscribe((function(t){var n=t[0],i=t[1],s=t[2];t[3]||i.empty()||(o.next(!0),e.next(i.adjustForPrependedItems(n)),setTimeout((function(){r.next({top:n*i.getDefaultSize()+s}),o.next(!1)})))})),{adjustForPrependedItems$:i,adjustmentInProgress$:o}}({offsetList$:O,scrollTop$:$,scrollTo$:U}),tt=Z.adjustForPrependedItems$,et=Z.adjustmentInProgress$,nt=function(t){var e=t.list$,n=t.offsetList$,r=t.scrollTop$,i=t.scrollTo$,o=l(null),s=l(Infinity);return n.pipe(y(s,r,e)).subscribe((function(t){var e=t[2],n=t[3];return t[0].configureMaxRangeSize(t[1],(function(){o.next({index:n[0].index,offset:e-n[0].offset})}))})),n.pipe(y(o)).subscribe((function(t){var e=t[1];if(null!==e){var n=t[0].offsetOf(e.index)+e.offset;i.next({top:n}),o.next(null)}})),{maxRangeSize$:s}}({scrollTo$:U,offsetList$:O,scrollTop$:$,list$:J}).maxRangeSize$,rt=function(t){var e=t.topList$,n=t.transposer$,r=t.viewportHeight$,i=t.totalCount$,o=t.offsetList$,s=l();return c(o,s,i,r).pipe(g((function(t){return t[1]>0&&t[3]>0})),y(n),h((function(t){var e=t[0],n=e[0],r=t[1],i=Math.max(0,Math.min(e[1]-1,e[2]));return r.transpose(n.indexRange(0,i))}))).subscribe(e.next),{topItemCount$:s}}({offsetList$:O,totalCount$:V,transposer$:a,viewportHeight$:d,topList$:T}).topItemCount$,it=function(t){var e=t.scrollToIndex$,n=t.scrolledToBottom$,r=t.totalCount$,i=l(!1);return c(i,r).pipe(y(n)).subscribe((function(t){var n=t[0],r=n[1];n[0]&&t[1]&&setTimeout((function(){e.next({index:r-1,align:"end",behavior:"auto"})}))})),{followOutput$:i}}({totalCount$:V,scrollToIndex$:G,scrolledToBottom$:D}).followOutput$,ot=Q.pipe(h((function(t){return-t}))),st=f();J.pipe(y(et),g((function(t){return 0!==t[0].length&&!t[1]})),h((function(t){var e=t[0];return{startIndex:e[0].index,endIndex:e[e.length-1].index}})),v((function(t,e){return!t||t.startIndex!==e.startIndex||t.endIndex!==e.endIndex}))).subscribe(st.next);var ut=function(t){var e,n,r=t.isScrolling$,i=t.scrollTop$,o=t.rangeChanged$,s=l(0),u=l(!1),a=l(void 0);return r.pipe(g((function(t){return!t})),p(0)).subscribe(s.next),i.pipe((function(t,r){e=t,n||(n=setTimeout((function(){n=void 0,r(e)}),100))}),m((function(t,e){return[t[1],e]}),[0,0]),h((function(t){return t[1]-t[0]}))).subscribe(s.next),s.pipe(y(a,u,o),g((function(t){return!!t[1]})),h((function(t){var e=t[0],n=t[1],r=t[2],i=t[3],o=n.enter;if(r){if((0,n.exit)(e,i))return!1}else if(o(e,i))return!0;return r})),v()).subscribe(u.next),c(u,s,o).pipe(y(a)).subscribe((function(t){var e=t[0];return e[0]&&t[1].change(e[1],e[2])})),{isSeeking$:u,scrollSeekConfiguration$:a,scrollVelocity$:s}}({scrollTop$:$,isScrolling$:I,rangeChanged$:st}),at=ut.isSeeking$,lt=ut.scrollVelocity$,ft=ut.scrollSeekConfiguration$,ct=F.pipe(h((function(t){return Math.min(t,15e6)}))),ht=c(F,ct,d).pipe(h((function(t){var e=t[2];return(t[0]-e)/(t[1]-e)}))),pt=l(0,!1),dt=c(Q,ht).pipe(h((function(t){return t[0]/t[1]})));return c(pt,ht).pipe(h((function(t){return t[0]*t[1]}))).subscribe($.next),{groupCounts:L(A),itemHeights:L(_),footerHeight:L(W),listHeight:L(Y),viewportHeight:L(d),scrollTop:L(pt),topItemCount:L(rt),totalCount:L(V),scrollToIndex:L(G),initialItemCount:L(N),followOutput:L(it),adjustForPrependedItems:L(tt),maxRangeSize:L(nt),scrollSeekConfiguration:L(ft),list:M(J),isSeeking:M(at),scrollVelocity:M(lt),itemsRendered:M(J),topList:M(T),listOffset:M(dt),totalHeight:M(ct),endReached:M(X),atBottomStateChange:M(D),totalListHeightChanged:M(F),rangeChanged:M(st),isScrolling:M(I),stickyItems:M(E),groupIndices:M(B),stickyItemsOffset:M(ot),scrollTo:M(U)}},z=function(t,e,r){var o=n.useRef(null),s=n.useRef(0),u=new i((function(e){var n=Math.round(e[0].contentRect.height);r&&(s.current=window.requestAnimationFrame((function(){var t=e[0].target;document.body.contains(t)&&r(t)}))),t(n)}));return n.useEffect((function(){return function(){return window.cancelAnimationFrame(s.current)}}),[]),function(t){t?(u.observe(t),e&&e(t),o.current=t):(u.unobserve(o.current),o.current=null)}};function E(t,e){var r=n.useState(function(t,e){return function(){var n=e;return t((function(t){n=t})),n}}(t,e)),i=r[0],o=r[1];return n.useLayoutEffect((function(){return t(o),function(){return t(void 0)}}),[t]),i}function N(t){var e,n=!1;return function(){return n||(n=!0,e=t()),e}}var _=N((function(){var t=document.createElement("div");return t.style.position="-webkit-sticky","-webkit-sticky"===t.style.position?"-webkit-sticky":"sticky"})),O={height:"40rem",overflowY:"auto",WebkitOverflowScrolling:"touch",position:"relative",outline:"none"},V=function(t){var e=t.className,i=t.style,o=t.reportScrollTop,s=t.scrollTo,u=t.children,a=n.useRef(null),l=n.useRef(null),f=n.useRef(),c=n.useCallback((function(t){var e=t.target.scrollTop;f.current=e,null!==l.current?l.current===e&&(l.current=null,o(e)):o(e)}),[o]),h=n.useCallback((function(t){t?(t.addEventListener("scroll",c,{passive:!0}),a.current=t):a.current.removeEventListener("scroll",c)}),[c]);return s((function(t){f.current!==t.top&&("smooth"===t.behavior&&(l.current=t.top),a.current&&a.current.scrollTo(t))})),r.createElement("div",{ref:h,style:i,tabIndex:0,className:e},u)},W=function(t){var n=t.children,i=t.style,o=t.className,s=t.ScrollContainer,u=t.scrollTop,a=t.scrollTo;return r.createElement(void 0===s?V:s,{style:e.__assign(e.__assign({},O),i),reportScrollTop:u,scrollTo:a,className:o},n)},F=r.memo((function(t){var e=t.render,i=n.useContext(o),s=i.isSeeking,u=i.topList,a=E(i.list,[]),l=E(u,[]),f=E(s,!1),c=[],h=0,p=[],d=l.reduce((function(t,e){return t+e.size}),0);return l.forEach((function(t,n){var r=t.index;p.push(r);var i={top:h+"px",marginTop:0===n?-d+"px":void 0,zIndex:2,position:_()};c.push(e(t,{key:r,"data-index":r,"data-known-size":t.size,renderPlaceholder:f,style:i})),h+=t.size})),a.forEach((function(t){p.indexOf(t.index)>-1||c.push(e(t,{key:t.index,"data-index":t.index,"data-known-size":t.size,renderPlaceholder:f}))})),r.createElement(r.Fragment,null," ",c," ")})),P={top:0,position:"absolute",height:"100%",width:"100%",overflow:"absolute"},j=function(t){return r.createElement("div",{style:{height:t.height+"px",position:"absolute",top:0}}," ")},A=function(t){return r.createElement("footer",{ref:t.footerRef},t.children)},B=function(t){return r.createElement("div",{ref:t.listRef,style:t.style},t.children)},D=function(t){var e=t.footer,i=t.FooterContainer,s=void 0===i?A:i,u=z(n.useContext(o).footerHeight);return r.createElement(s,{footerRef:u},e())},q=function(t){var e=t.fixedItemHeight,i=t.children,s=t.ListContainer,u=n.useContext(o),a=u.listHeight,l=u.itemHeights,f={marginTop:E(u.listOffset,0)+"px"},c=z(a,(function(){}),(function(t){if(!e){var n=function(t){for(var e=[],n=0,r=t.length;n<r;n++){var i=t.item(n);if(i&&void 0!==i.dataset.index){var o=parseInt(i.dataset.index),s=parseInt(i.dataset.knownSize),u=i.offsetHeight;if(u!==s){var a=e[e.length-1];0===e.length||a.size!==u||a.end!==o-1?e.push({start:o,end:o,size:u}):e[e.length-1].end++}}}return e}(t.children);l(n)}}));return r.createElement(s,{listRef:c,style:f},i)},G=function(t){var e=t.style,i=t.footer,s=t.item,u=t.fixedItemHeight,a=t.ScrollContainer,l=t.ListContainer,f=t.FooterContainer,c=t.className,h=n.useContext(o),p=h.scrollTo,d=h.scrollTop,g=h.viewportHeight,v=E(h.totalHeight,0),m=z(g);return r.createElement(W,{style:e,ScrollContainer:a,className:c,scrollTo:p,scrollTop:function(t){d(Math.max(t,0))}},r.createElement("div",{ref:m,style:P},r.createElement(q,{fixedItemHeight:u,ListContainer:l},r.createElement(F,{render:s}),i&&r.createElement(D,{footer:i,FooterContainer:f}))),r.createElement(j,{height:v}))},U={},K=r.memo((function(t){return r.createElement(o.Provider,{value:t.contextValue},r.createElement(G,{style:t.style||U,className:t.className,item:t.item,footer:t.footer,fixedItemHeight:void 0!==t.itemHeight,ScrollContainer:t.ScrollContainer,FooterContainer:t.FooterContainer,ListContainer:t.ListContainer||B}))})),Y=n.forwardRef((function(t,i){var o=n.useState(R(t))[0];n.useImperativeHandle(i,(function(){return{scrollToIndex:function(t){o.scrollToIndex(t)},adjustForPrependedItems:function(t){o.adjustForPrependedItems(t)}}}),[o]),n.useLayoutEffect((function(){return o.isScrolling(t.scrollingStateChange),o.atBottomStateChange(t.atBottomStateChange),o.endReached(t.endReached),o.topItemCount(t.topItems||0),o.totalCount(t.totalCount),t.initialItemCount&&o.initialItemCount(t.initialItemCount),o.itemsRendered(t.itemsRendered),o.totalListHeightChanged(t.totalListHeightChanged),o.followOutput(!!t.followOutput),o.maxRangeSize(t.maxHeightCacheSize||Infinity),o.rangeChanged(t.rangeChanged),o.scrollSeekConfiguration(t.scrollSeek),function(){o.itemsRendered(void 0),o.totalListHeightChanged(void 0)}}),[o,t.scrollingStateChange,t.atBottomStateChange,t.endReached,t.topItems,t.totalCount,t.initialItemCount,t.itemsRendered,t.totalListHeightChanged,t.followOutput,t.maxHeightCacheSize,t.rangeChanged,t.scrollSeek]);var s=t.scrollSeek,u=t.computeItemKey,a=t.item,l=t.ItemContainer,f=void 0===l?"div":l,c=n.useCallback((function(t,n){var i,o=n.key,l=n.renderPlaceholder,c=e.__rest(n,["key","renderPlaceholder"]);return u&&(o=u(t.index)),i=s&&l?r.createElement(s.placeholder,{height:c["data-known-size"],index:t.index}):a(t.index),r.createElement(f,e.__assign(e.__assign({},c),{key:o}),i)}),[a,s,u,f]);return r.createElement(K,{contextValue:o,style:t.style,className:t.className,item:c,footer:t.footer,itemHeight:t.itemHeight,ScrollContainer:t.ScrollContainer,FooterContainer:t.FooterContainer,ListContainer:t.ListContainer})}));Y.displayName="Virtuoso";var J=n.forwardRef((function(t,i){var o=n.useState(R(t))[0];n.useImperativeHandle(i,(function(){return{scrollToIndex:function(t){o.scrollToIndex(t)}}}),[o]),n.useLayoutEffect((function(){return o.endReached(t.endReached),o.rangeChanged(t.rangeChanged),o.atBottomStateChange(t.atBottomStateChange),o.isScrolling(t.scrollingStateChange),o.groupCounts(t.groupCounts),o.groupIndices(t.groupIndices),o.itemsRendered(t.itemsRendered),o.totalListHeightChanged(t.totalListHeightChanged),function(){o.itemsRendered(void 0),o.totalListHeightChanged(void 0)}}),[o,t.endReached,t.rangeChanged,t.atBottomStateChange,t.scrollingStateChange,t.groupCounts,t.groupIndices,t.itemsRendered,t.totalListHeightChanged]);var s=n.useCallback((function(n,i){var o=e.__rest(i,["renderPlaceholder"]),s=t.ItemContainer,u=t.GroupContainer||s;if("group"===n.type){var a=t.group(n.groupIndex);return r.createElement(u||"div",e.__assign({},o),a)}return a=t.item(n.transposedIndex,n.groupIndex),r.createElement(s||"div",e.__assign({},o),a)}),[t]);return r.createElement(K,{contextValue:o,style:t.style,className:t.className,item:s,footer:t.footer,itemHeight:t.itemHeight,ScrollContainer:t.ScrollContainer,FooterContainer:t.FooterContainer,ListContainer:t.ListContainer})}));J.displayName="GroupedVirtuoso";var Q=Math.ceil,X=Math.floor,Z=Math.min,tt=Math.max,et=function(t){return Q(t)-t<.03?Q(t):X(t)},nt=function(){var t=l([0,0,void 0,void 0]),e=l(0),n=l(0),r=l(0),i=l([0,0]),o=l(0),s=l(0),u=f();c(t,n,r,e).pipe(y(i)).subscribe((function(t){var e=t[0],n=e[0],r=n[0],u=n[1],a=n[2],l=n[3],f=e[1],c=e[2],h=e[3],p=t[1];if(void 0!==a&&void 0!==l){if(0===h)return i.next([0,-1]),void s.next(0);var d=p[0],g=p[1],v=et(r/a),m=function(t,e){return void 0===e&&(e=X),e(t/v)},y=function(t){var e=t?[0,c]:[c,0],n=e[1],r=v*X((f-e[0])/l),o=v*Q((f+u+n)/l)-1;o=Z(h-1,o),r=Z(o,tt(0,r)),i.next([r,o]),s.next(m(r)*l)},x=l*m(d),$=l*m(g)+l;h<g-1?y(!0):x>f?y(!1):$<f+u&&y(!0),o.next(l*m(h,Q))}}));var a=u.pipe(y(t,e),h((function(t){var e=t[0],n=t[1],r=n[0],i=n[1],o=n[2],s=n[3];if(void 0===o||void 0===s)return{top:0,behavior:"auto"};"number"==typeof e&&(e={index:e,align:"start"});var u=e.index,a=e.align,l=void 0===a?"start":a;u=Math.max(0,u,Math.min(t[2]-1,u));var f=et(r/o),c=X(u/f)*s;return"end"===l?c=c-i+s:"center"===l&&(c=Math.round(c-i/2+s/2)),{top:c,behavior:"auto"}}))),p=x(n),d=f(),g=0;return i.pipe(y(e)).subscribe((function(t){var e=t[0][1],n=t[1];0!==n&&e===n-1&&g!==e&&(g=e,d.next(e))})),{gridDimensions:L(t),totalCount:L(e),scrollTop:L(n),overscan:L(r),scrollToIndex:L(u),itemRange:M(i),totalHeight:M(o),listOffset:M(s),scrollTo:M(a),isScrolling:M(p),endReached:M(d)}},rt=function(t){function n(){var e=null!==t&&t.apply(this,arguments)||this;return e.state=nt(),e}return e.__extends(n,t),n.getDerivedStateFromProps=function(t,e){return e.overscan(t.overscan||0),e.totalCount(t.totalCount),e.isScrolling(t.scrollingStateChange),e.endReached(t.endReached),null},n.prototype.scrollToIndex=function(t){this.state.scrollToIndex(t)},n.prototype.render=function(){return r.createElement(it,e.__assign({},this.props,{engine:this.state}))},n}(r.PureComponent),it=function(t){var e,o,s,u,a=t.ScrollContainer,l=t.ItemContainer,f=void 0===l?"div":l,c=t.ListContainer,h=void 0===c?"div":c,p=t.className,d=t.item,g=t.itemClassName,v=void 0===g?"virtuoso-grid-item":g,m=t.listClassName,y=void 0===m?"virtuoso-grid-list":m,x=t.engine,$=t.style,I=void 0===$?{height:"40rem"}:$,C=x.itemRange,T=x.listOffset,b=x.gridDimensions,k=x.scrollTo,w=x.scrollTop,H=E(x.totalHeight,0),S={marginTop:E(T,0)+"px"},M=E(C,[0,0]),L=(e=function(t){var e=t.element.firstChild.firstChild;b([t.width,t.height,e.offsetWidth,e.offsetHeight])},o=n.useRef(null),s=n.useRef([0,0]),u=new i((function(t){var n=t[0].contentRect,r=n.width,i=n.height;s.current[0]===r&&s.current[1]===i||(s.current=[r,i],e({element:t[0].target,width:Math.round(r),height:Math.round(i)}))})),function(t){t?(u.observe(t),o.current=t):(u.unobserve(o.current),o.current=null)});return r.createElement(W,{style:I,ScrollContainer:a,className:p,scrollTo:k,scrollTop:w},r.createElement("div",{ref:L,style:P},r.createElement(h,{style:S,className:y},function(t,e,n,i){for(var o=t[1],s=[],u=t[0];u<=o;u++)s.push(r.createElement(i,{key:u,className:n},e(u)));return s}(M,d,v,f))),r.createElement(j,{height:H}))};exports.GroupedVirtuoso=J,exports.Virtuoso=Y,exports.VirtuosoGrid=rt,exports.VirtuosoPresentation=K;
 //# sourceMappingURL=react-virtuoso.cjs.production.min.js.map

dist/VirtuosoStore.d.ts

@@ -0,3 +1,3 @@
+import { ListRange } from './engines/scrollSeekEngine';
 import { ListItem } from './GroupIndexTransposer';
-import { ListRange } from './engines/scrollSeekEngine';
 export interface ItemHeight {
@@ -4,0 +4,0 @@ start: number;

package.json

 {
   "name": "react-virtuoso",
   "sideEffects": false,
-  "version": "0.14.2",
+  "version": "0.15.0",
   "homepage": "https://virtuoso.dev",
@@ -6,0 +6,0 @@ "license": "MIT",

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Improved metrics

Total package byte prevSize

2736288

increased by281.45%

Number of package files

44

increased by2.33%

Worsened metrics

Lines of code

5923

decreased by-0.42%

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