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index.tsx
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index.tsx
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/* eslint-disable react/no-array-index-key */
import classNames from 'classnames';
import toArray from 'rc-util/lib/Children/toArray';
import * as React from 'react';
import { ConfigContext } from '../config-provider';
import { cloneElement } from '../_util/reactNode';
import type { Breakpoint, ScreenMap } from '../_util/responsiveObserve';
import useResponsiveObserve, { responsiveArray } from '../_util/responsiveObserve';
import warning from '../_util/warning';
import DescriptionsItem from './Item';
import Row from './Row';
import useStyle from './style';
export interface DescriptionsContextProps {
labelStyle?: React.CSSProperties;
contentStyle?: React.CSSProperties;
}
export const DescriptionsContext = React.createContext<DescriptionsContextProps>({});
const DEFAULT_COLUMN_MAP: Record<Breakpoint, number> = {
xxl: 3,
xl: 3,
lg: 3,
md: 3,
sm: 2,
xs: 1,
};
function getColumn(column: DescriptionsProps['column'], screens: ScreenMap): number {
if (typeof column === 'number') {
return column;
}
if (typeof column === 'object') {
for (let i = 0; i < responsiveArray.length; i++) {
const breakpoint: Breakpoint = responsiveArray[i];
if (screens[breakpoint] && column[breakpoint] !== undefined) {
return column[breakpoint] || DEFAULT_COLUMN_MAP[breakpoint];
}
}
}
return 3;
}
function getFilledItem(
node: React.ReactElement,
span: number | undefined,
rowRestCol: number,
): React.ReactElement {
let clone = node;
if (span === undefined || span > rowRestCol) {
clone = cloneElement(node, {
span: rowRestCol,
});
warning(
span === undefined,
'Descriptions',
'Sum of column `span` in a line not match `column` of Descriptions.',
);
}
return clone;
}
function getRows(children: React.ReactNode, column: number) {
const childNodes = toArray(children).filter((n) => n);
const rows: React.ReactElement[][] = [];
let tmpRow: React.ReactElement[] = [];
let rowRestCol = column;
childNodes.forEach((node, index) => {
const span: number | undefined = node.props?.span;
const mergedSpan = span || 1;
// Additional handle last one
if (index === childNodes.length - 1) {
tmpRow.push(getFilledItem(node, span, rowRestCol));
rows.push(tmpRow);
return;
}
if (mergedSpan < rowRestCol) {
rowRestCol -= mergedSpan;
tmpRow.push(node);
} else {
tmpRow.push(getFilledItem(node, mergedSpan, rowRestCol));
rows.push(tmpRow);
rowRestCol = column;
tmpRow = [];
}
});
return rows;
}
export interface DescriptionsProps {
prefixCls?: string;
className?: string;
style?: React.CSSProperties;
bordered?: boolean;
size?: 'middle' | 'small' | 'default';
children?: React.ReactNode;
title?: React.ReactNode;
extra?: React.ReactNode;
column?: number | Partial<Record<Breakpoint, number>>;
layout?: 'horizontal' | 'vertical';
colon?: boolean;
labelStyle?: React.CSSProperties;
contentStyle?: React.CSSProperties;
}
function Descriptions({
prefixCls: customizePrefixCls,
title,
extra,
column = DEFAULT_COLUMN_MAP,
colon = true,
bordered,
layout,
children,
className,
style,
size,
labelStyle,
contentStyle,
}: DescriptionsProps) {
const { getPrefixCls, direction } = React.useContext(ConfigContext);
const prefixCls = getPrefixCls('descriptions', customizePrefixCls);
const [screens, setScreens] = React.useState<ScreenMap>({});
const mergedColumn = getColumn(column, screens);
const [wrapSSR, hashId] = useStyle(prefixCls);
const responsiveObserve = useResponsiveObserve();
// Responsive
React.useEffect(() => {
const token = responsiveObserve.subscribe((newScreens) => {
if (typeof column !== 'object') {
return;
}
setScreens(newScreens);
});
return () => {
responsiveObserve.unsubscribe(token);
};
}, []);
// Children
const rows = getRows(children, mergedColumn);
const contextValue = React.useMemo(
() => ({ labelStyle, contentStyle }),
[labelStyle, contentStyle],
);
return wrapSSR(
<DescriptionsContext.Provider value={contextValue}>
<div
className={classNames(
prefixCls,
{
[`${prefixCls}-${size}`]: size && size !== 'default',
[`${prefixCls}-bordered`]: !!bordered,
[`${prefixCls}-rtl`]: direction === 'rtl',
},
className,
hashId,
)}
style={style}
>
{(title || extra) && (
<div className={`${prefixCls}-header`}>
{title && <div className={`${prefixCls}-title`}>{title}</div>}
{extra && <div className={`${prefixCls}-extra`}>{extra}</div>}
</div>
)}
<div className={`${prefixCls}-view`}>
<table>
<tbody>
{rows.map((row, index) => (
<Row
key={index}
index={index}
colon={colon}
prefixCls={prefixCls}
vertical={layout === 'vertical'}
bordered={bordered}
row={row}
/>
))}
</tbody>
</table>
</div>
</div>
</DescriptionsContext.Provider>,
);
}
Descriptions.Item = DescriptionsItem;
export default Descriptions;