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import * as React from 'react';
import classNames from 'classnames';
import type { CSSMotionProps } from 'rc-motion';
import CSSMotion, { CSSMotionList } from 'rc-motion';
import initCollapseMotion from '../_util/motion';
import useCSSVarCls from '../config-provider/hooks/useCSSVarCls';
import { FormItemPrefixContext } from './context';
import type { ValidateStatus } from './FormItem';
import useDebounce from './hooks/useDebounce';
import useStyle from './style';
const EMPTY_LIST: React.ReactNode[] = [];
interface ErrorEntity {
error: React.ReactNode;
errorStatus?: ValidateStatus;
key: string;
}
function toErrorEntity(
error: React.ReactNode,
prefix: string,
errorStatus?: ValidateStatus,
index = 0,
): ErrorEntity {
return {
key: typeof error === 'string' ? error : `${prefix}-${index}`,
error,
errorStatus,
};
}
export interface ErrorListProps {
fieldId?: string;
help?: React.ReactNode;
helpStatus?: ValidateStatus;
errors?: React.ReactNode[];
warnings?: React.ReactNode[];
className?: string;
onVisibleChanged?: (visible: boolean) => void;
}
const ErrorList: React.FC<ErrorListProps> = ({
help,
helpStatus,
errors = EMPTY_LIST,
warnings = EMPTY_LIST,
className: rootClassName,
fieldId,
onVisibleChanged,
}) => {
const { prefixCls } = React.useContext(FormItemPrefixContext);
const baseClassName = `${prefixCls}-item-explain`;
const rootCls = useCSSVarCls(prefixCls);
const [wrapCSSVar, hashId, cssVarCls] = useStyle(prefixCls, rootCls);
const collapseMotion = React.useMemo<CSSMotionProps>(
() => initCollapseMotion(prefixCls),
[prefixCls],
);
// We have to debounce here again since somewhere use ErrorList directly still need no shaking
// ref: https://github.com/ant-design/ant-design/issues/36336
const debounceErrors = useDebounce(errors);
const debounceWarnings = useDebounce(warnings);
const fullKeyList = React.useMemo<ErrorEntity[]>(() => {
if (help !== undefined && help !== null) {
return [toErrorEntity(help, 'help', helpStatus)];
}
return [
...debounceErrors.map((error, index) => toErrorEntity(error, 'error', 'error', index)),
...debounceWarnings.map((warning, index) =>
toErrorEntity(warning, 'warning', 'warning', index),
),
];
}, [help, helpStatus, debounceErrors, debounceWarnings]);
const filledKeyFullKeyList = React.useMemo<ErrorEntity[]>(() => {
const keysCount: Record<string, number> = {};
fullKeyList.forEach(({ key }) => {
keysCount[key] = (keysCount[key] || 0) + 1;
});
return fullKeyList.map((entity, index) => ({
...entity,
key: keysCount[entity.key] > 1 ? `${entity.key}-fallback-${index}` : entity.key,
}));
}, [fullKeyList]);
const helpProps: { id?: string } = { };
if (fieldId) {
helpProps.id = `${fieldId}_help`;
}
return wrapCSSVar(
<CSSMotion
motionDeadline={collapseMotion.motionDeadline}
motionName={`${prefixCls}-show-help`}
visible={!!filledKeyFullKeyList.length}
onVisibleChanged={onVisibleChanged}
>
{(holderProps) => {
const { className: holderClassName, style: holderStyle } = holderProps;
return (
<div
{...helpProps}
className={classNames(
baseClassName,
holderClassName,
cssVarCls,
rootCls,
rootClassName,
hashId,
)}
style={holderStyle}
>
<CSSMotionList
keys={filledKeyFullKeyList}
{...initCollapseMotion(prefixCls)}
motionName={`${prefixCls}-show-help-item`}
component={false}
>
{(itemProps) => {
const {
key,
error,
errorStatus,
className: itemClassName,
style: itemStyle,
} = itemProps;
return (
<div
key={key}
className={classNames(itemClassName, {
[`${baseClassName}-${errorStatus}`]: errorStatus,
})}
style={itemStyle}
>
{error}
</div>
);
}}
</CSSMotionList>
</div>
);
}}
</CSSMotion>,
);
};
export default ErrorList;
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