105 lines
3.2 KiB
JavaScript
105 lines
3.2 KiB
JavaScript
import * as React from 'react';
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import { clsx } from 'clsx';
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import { useContext } from '@rc-component/context';
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import TableContext, { responseImmutable } from "../context/TableContext";
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import devRenderTimes from "../hooks/useRenderTimes";
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import HeaderRow from "./HeaderRow";
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function parseHeaderRows(rootColumns, classNames, styles) {
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const rows = [];
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function fillRowCells(columns, colIndex, rowIndex = 0) {
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// Init rows
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rows[rowIndex] = rows[rowIndex] || [];
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let currentColIndex = colIndex;
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const colSpans = columns.filter(Boolean).map(column => {
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const cell = {
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key: column.key,
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className: clsx(column.className, classNames.cell) || '',
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style: styles.cell,
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children: column.title,
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column,
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colStart: currentColIndex
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};
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let colSpan = 1;
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const subColumns = column.children;
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if (subColumns && subColumns.length > 0) {
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colSpan = fillRowCells(subColumns, currentColIndex, rowIndex + 1).reduce((total, count) => total + count, 0);
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cell.hasSubColumns = true;
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}
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if ('colSpan' in column) {
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({
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colSpan
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} = column);
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}
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if ('rowSpan' in column) {
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cell.rowSpan = column.rowSpan;
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}
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cell.colSpan = colSpan;
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cell.colEnd = cell.colStart + colSpan - 1;
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rows[rowIndex].push(cell);
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currentColIndex += colSpan;
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return colSpan;
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});
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return colSpans;
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}
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// Generate `rows` cell data
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fillRowCells(rootColumns, 0);
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// Handle `rowSpan`
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const rowCount = rows.length;
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for (let rowIndex = 0; rowIndex < rowCount; rowIndex += 1) {
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rows[rowIndex].forEach(cell => {
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if (!('rowSpan' in cell) && !cell.hasSubColumns) {
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// eslint-disable-next-line no-param-reassign
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cell.rowSpan = rowCount - rowIndex;
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}
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});
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}
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return rows;
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}
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const Header = props => {
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if (process.env.NODE_ENV !== 'production') {
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devRenderTimes(props);
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}
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const {
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stickyOffsets,
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columns,
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flattenColumns,
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onHeaderRow
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} = props;
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const {
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prefixCls,
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getComponent,
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classNames,
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styles
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} = useContext(TableContext, ['prefixCls', 'getComponent', 'classNames', 'styles']);
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const {
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header: headerCls = {}
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} = classNames || {};
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const {
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header: headerStyles = {}
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} = styles || {};
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const rows = React.useMemo(() => parseHeaderRows(columns, headerCls, headerStyles), [columns, headerCls, headerStyles]);
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const WrapperComponent = getComponent(['header', 'wrapper'], 'thead');
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const trComponent = getComponent(['header', 'row'], 'tr');
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const thComponent = getComponent(['header', 'cell'], 'th');
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return /*#__PURE__*/React.createElement(WrapperComponent, {
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className: clsx(`${prefixCls}-thead`, headerCls.wrapper),
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style: headerStyles.wrapper
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}, rows.map((row, rowIndex) => {
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const rowNode = /*#__PURE__*/React.createElement(HeaderRow, {
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classNames: headerCls,
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styles: headerStyles,
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key: rowIndex,
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flattenColumns: flattenColumns,
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cells: row,
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stickyOffsets: stickyOffsets,
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rowComponent: trComponent,
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cellComponent: thComponent,
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onHeaderRow: onHeaderRow,
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index: rowIndex
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});
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return rowNode;
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}));
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};
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export default responseImmutable(Header); |