/
index.tsx
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/
index.tsx
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import classNames from 'classnames';
import toArray from 'rc-util/lib/Children/toArray';
import * as React from 'react';
import { ConfigContext } from '../config-provider';
import type { SizeType } from '../config-provider/SizeContext';
import useFlexGapSupport from '../_util/hooks/useFlexGapSupport';
import Item from './Item';
import Compact from './Compact';
export const SpaceContext = React.createContext({
latestIndex: 0,
horizontalSize: 0,
verticalSize: 0,
supportFlexGap: false,
});
export type SpaceSize = SizeType | number;
export interface SpaceProps extends React.HTMLAttributes<HTMLDivElement> {
prefixCls?: string;
className?: string;
style?: React.CSSProperties;
size?: SpaceSize | [SpaceSize, SpaceSize];
direction?: 'horizontal' | 'vertical';
// No `stretch` since many components do not support that.
align?: 'start' | 'end' | 'center' | 'baseline';
split?: React.ReactNode;
wrap?: boolean;
}
const spaceSize = {
small: 8,
middle: 16,
large: 24,
};
function getNumberSize(size: SpaceSize) {
return typeof size === 'string' ? spaceSize[size] : size || 0;
}
const Space: React.FC<SpaceProps> = (props) => {
const { getPrefixCls, space, direction: directionConfig } = React.useContext(ConfigContext);
const {
size = space?.size || 'small',
align,
className,
children,
direction = 'horizontal',
prefixCls: customizePrefixCls,
split,
style,
wrap = false,
...otherProps
} = props;
const supportFlexGap = useFlexGapSupport();
const [horizontalSize, verticalSize] = React.useMemo(
() =>
((Array.isArray(size) ? size : [size, size]) as [SpaceSize, SpaceSize]).map((item) =>
getNumberSize(item),
),
[size],
);
const childNodes = toArray(children, { keepEmpty: true });
const mergedAlign = align === undefined && direction === 'horizontal' ? 'center' : align;
const prefixCls = getPrefixCls('space', customizePrefixCls);
const cn = classNames(
prefixCls,
`${prefixCls}-${direction}`,
{
[`${prefixCls}-rtl`]: directionConfig === 'rtl',
[`${prefixCls}-align-${mergedAlign}`]: mergedAlign,
},
className,
);
const itemClassName = `${prefixCls}-item`;
const marginDirection = directionConfig === 'rtl' ? 'marginLeft' : 'marginRight';
// Calculate latest one
let latestIndex = 0;
const nodes = childNodes.map((child, i) => {
if (child !== null && child !== undefined) {
latestIndex = i;
}
const key = (child && child.key) || `${itemClassName}-${i}`;
return (
<Item
className={itemClassName}
key={key}
direction={direction}
index={i}
marginDirection={marginDirection}
split={split}
wrap={wrap}
>
{child}
</Item>
);
});
const spaceContext = React.useMemo(
() => ({ horizontalSize, verticalSize, latestIndex, supportFlexGap }),
[horizontalSize, verticalSize, latestIndex, supportFlexGap],
);
// =========================== Render ===========================
if (childNodes.length === 0) {
return null;
}
const gapStyle: React.CSSProperties = {};
if (wrap) {
gapStyle.flexWrap = 'wrap';
// Patch for gap not support
if (!supportFlexGap) {
gapStyle.marginBottom = -verticalSize;
}
}
if (supportFlexGap) {
gapStyle.columnGap = horizontalSize;
gapStyle.rowGap = verticalSize;
}
return (
<div
className={cn}
style={{
...gapStyle,
...style,
}}
{...otherProps}
>
<SpaceContext.Provider value={spaceContext}>{nodes}</SpaceContext.Provider>
</div>
);
};
type CompoundedComponent = React.FC<SpaceProps> & {
Compact: typeof Compact;
};
const CompoundedSpace = Space as CompoundedComponent;
CompoundedSpace.Compact = Compact;
export default CompoundedSpace;