42 lines
1.5 KiB
JavaScript
42 lines
1.5 KiB
JavaScript
import * as React from 'react';
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import { gridPaginationRowRangeSelector, gridPaginatedVisibleSortedGridRowEntriesSelector } from '../features/pagination/gridPaginationSelector';
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import { gridExpandedSortedRowEntriesSelector } from '../features/filter/gridFilterSelector';
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export var getVisibleRows = function getVisibleRows(apiRef, props) {
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var rows;
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var range;
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if (props.pagination && props.paginationMode === 'client') {
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range = gridPaginationRowRangeSelector(apiRef);
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rows = gridPaginatedVisibleSortedGridRowEntriesSelector(apiRef);
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} else {
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rows = gridExpandedSortedRowEntriesSelector(apiRef);
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if (rows.length === 0) {
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range = null;
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} else {
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range = {
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firstRowIndex: 0,
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lastRowIndex: rows.length - 1
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};
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}
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}
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return {
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rows: rows,
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range: range
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};
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};
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/**
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* Computes the list of rows that are reachable by scroll.
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* Depending on whether pagination is enabled, it will return the rows in the current page.
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* - If the pagination is disabled or in server mode, it equals all the visible rows.
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* - If the row tree has several layers, it contains up to `state.pageSize` top level rows and all their descendants.
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* - If the row tree is flat, it only contains up to `state.pageSize` rows.
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*/
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export var useGridVisibleRows = function useGridVisibleRows(apiRef, props) {
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var response = getVisibleRows(apiRef, props);
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return React.useMemo(function () {
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return {
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rows: response.rows,
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range: response.range
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};
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}, [response.rows, response.range]);
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}; |