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import * as React from 'react';
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import classNames from 'classnames';
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import { ConfigConsumer, ConfigConsumerProps } from '../config-provider';
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import RowContext from './RowContext';
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import { tuple } from '../_util/type';
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import ResponsiveObserve, {
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Breakpoint,
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ScreenMap,
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responsiveArray,
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} from '../_util/responsiveObserve';
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const RowAligns = tuple('top', 'middle', 'bottom', 'stretch');
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const RowJustify = tuple('start', 'end', 'center', 'space-around', 'space-between');
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export type Gutter = number | Partial<Record<Breakpoint, number>>;
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export interface RowProps extends React.HTMLAttributes<HTMLDivElement> {
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gutter?: Gutter | [Gutter, Gutter];
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align?: typeof RowAligns[number];
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justify?: typeof RowJustify[number];
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prefixCls?: string;
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}
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const Row = React.forwardRef<HTMLDivElement, RowProps>((props, ref) => {
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const [screens, setScreens] = React.useState<ScreenMap>({
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xs: true,
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sm: true,
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md: true,
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lg: true,
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xl: true,
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xxl: true,
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});
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const gutterRef = React.useRef<Gutter | [Gutter, Gutter]>();
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gutterRef.current = props.gutter;
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React.useEffect(() => {
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const token = ResponsiveObserve.subscribe(screen => {
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const currentGutter = gutterRef.current || 0;
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if (
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(!Array.isArray(currentGutter) && typeof currentGutter === 'object') ||
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(Array.isArray(currentGutter) &&
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(typeof currentGutter[0] === 'object' || typeof currentGutter[1] === 'object'))
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) {
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setScreens(screen);
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}
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});
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return () => {
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ResponsiveObserve.unsubscribe(token);
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};
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}, []);
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const getGutter = (): [number, number] => {
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const results: [number, number] = [0, 0];
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const { gutter = 0 } = props;
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const normalizedGutter = Array.isArray(gutter) ? gutter : [gutter, 0];
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normalizedGutter.forEach((g, index) => {
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if (typeof g === 'object') {
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for (let i = 0; i < responsiveArray.length; i++) {
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const breakpoint: Breakpoint = responsiveArray[i];
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if (screens[breakpoint] && g[breakpoint] !== undefined) {
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results[index] = g[breakpoint] as number;
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break;
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}
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}
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} else {
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results[index] = g || 0;
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}
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});
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return results;
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};
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const renderRow = ({ getPrefixCls, direction }: ConfigConsumerProps) => {
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const {
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prefixCls: customizePrefixCls,
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justify,
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align,
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className,
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style,
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children,
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...others
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} = props;
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const prefixCls = getPrefixCls('row', customizePrefixCls);
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const gutter = getGutter();
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const classes = classNames(
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prefixCls,
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{
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[`${prefixCls}-${justify}`]: justify,
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[`${prefixCls}-${align}`]: align,
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[`${prefixCls}-rtl`]: direction === 'rtl',
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},
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className,
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);
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const rowStyle = {
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...(gutter[0]! > 0
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? {
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marginLeft: gutter[0]! / -2,
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marginRight: gutter[0]! / -2,
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}
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: {}),
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...(gutter[1]! > 0
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? {
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marginTop: gutter[1]! / -2,
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marginBottom: gutter[1]! / 2,
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}
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: {}),
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...style,
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};
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const otherProps = { ...others };
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delete otherProps.gutter;
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return (
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<RowContext.Provider value={{ gutter }}>
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<div {...otherProps} className={classes} style={rowStyle} ref={ref}>
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{children}
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</div>
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</RowContext.Provider>
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);
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};
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return <ConfigConsumer>{renderRow}</ConfigConsumer>;
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});
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Row.displayName = 'Row';
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export default Row;
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