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import * as React from 'react';
import classNames from 'classnames';
import type { Meta } from 'rc-field-form/lib/interface';
import isVisible from 'rc-util/lib/Dom/isVisible';
import useLayoutEffect from 'rc-util/lib/hooks/useLayoutEffect';
import omit from 'rc-util/lib/omit';
import type { FormItemProps } from '.';
import { Row } from '../../grid';
import type { ReportMetaChange } from '../context';
import { FormContext, NoStyleItemContext } from '../context';
import FormItemInput from '../FormItemInput';
import FormItemLabel from '../FormItemLabel';
import useDebounce from '../hooks/useDebounce';
import { getStatus } from '../util';
import StatusProvider from './StatusProvider';
export interface ItemHolderProps extends FormItemProps {
prefixCls: string;
className?: string;
rootClassName?: string;
style?: React.CSSProperties;
errors: React.ReactNode[];
warnings: React.ReactNode[];
meta: Meta;
children?: React.ReactNode;
fieldId?: string;
isRequired?: boolean;
onSubItemMetaChange: ReportMetaChange;
}
export default function ItemHolder(props: ItemHolderProps) {
const {
prefixCls,
className,
rootClassName,
style,
help,
errors,
warnings,
validateStatus,
meta,
hasFeedback,
hidden,
children,
fieldId,
required,
isRequired,
onSubItemMetaChange,
layout,
name,
...restProps
} = props;
const itemPrefixCls = `${prefixCls}-item`;
const { requiredMark, vertical: formVertical } = React.useContext(FormContext);
const vertical = formVertical || layout === 'vertical';
// ======================== Margin ========================
const itemRef = React.useRef<HTMLDivElement>(null);
const debounceErrors = useDebounce(errors);
const debounceWarnings = useDebounce(warnings);
const hasHelp = help !== undefined && help !== null;
const hasError = !!(hasHelp || errors.length || warnings.length);
const isOnScreen = !!itemRef.current && isVisible(itemRef.current);
const [marginBottom, setMarginBottom] = React.useState<number | null>(null);
useLayoutEffect(() => {
if (hasError && itemRef.current) {
// The element must be part of the DOMTree to use getComputedStyle
// https://stackoverflow.com/questions/35360711/getcomputedstyle-returns-a-cssstyledeclaration-but-all-properties-are-empty-on-a
const itemStyle = getComputedStyle(itemRef.current);
setMarginBottom(parseInt(itemStyle.marginBottom, 10));
}
}, [hasError, isOnScreen]);
const onErrorVisibleChanged = (nextVisible: boolean) => {
if (!nextVisible) {
setMarginBottom(null);
}
};
// ======================== Status ========================
const getValidateState = (isDebounce = false) => {
const _errors = isDebounce ? debounceErrors : meta.errors;
const _warnings = isDebounce ? debounceWarnings : meta.warnings;
return getStatus(_errors, _warnings, meta, '', !!hasFeedback, validateStatus);
};
const mergedValidateStatus = getValidateState();
// ======================== Render ========================
const itemClassName = classNames(itemPrefixCls, className, rootClassName, {
[`${itemPrefixCls}-with-help`]: hasHelp || debounceErrors.length || debounceWarnings.length,
// Status
[`${itemPrefixCls}-has-feedback`]: mergedValidateStatus && hasFeedback,
[`${itemPrefixCls}-has-success`]: mergedValidateStatus === 'success',
[`${itemPrefixCls}-has-warning`]: mergedValidateStatus === 'warning',
[`${itemPrefixCls}-has-error`]: mergedValidateStatus === 'error',
[`${itemPrefixCls}-is-validating`]: mergedValidateStatus === 'validating',
[`${itemPrefixCls}-hidden`]: hidden,
// Layout
[`${itemPrefixCls}-${layout}`]: layout,
});
return (
<div className={itemClassName} style={style} ref={itemRef}>
<Row
className={`${itemPrefixCls}-row`}
{...omit(restProps, [
'_internalItemRender' as any,
'colon',
'dependencies',
'extra',
'fieldKey',
'getValueFromEvent',
'getValueProps',
'htmlFor',
'id', // It is deprecated because `htmlFor` is its replacement.
'initialValue',
'isListField',
'label',
'labelAlign',
'labelCol',
'labelWrap',
'messageVariables',
'name',
'normalize',
'noStyle',
'preserve',
'requiredMark',
'rules',
'shouldUpdate',
'trigger',
'tooltip',
'validateFirst',
'validateTrigger',
'valuePropName',
'wrapperCol',
'validateDebounce',
])}
>
{/* Label */}
<FormItemLabel
htmlFor={fieldId}
{...props}
requiredMark={requiredMark}
required={required ?? isRequired}
prefixCls={prefixCls}
vertical={vertical}
/>
{/* Input Group */}
<FormItemInput
{...props}
{...meta}
errors={debounceErrors}
warnings={debounceWarnings}
prefixCls={prefixCls}
status={mergedValidateStatus}
help={help}
marginBottom={marginBottom}
onErrorVisibleChanged={onErrorVisibleChanged}
>
<NoStyleItemContext.Provider value={onSubItemMetaChange}>
<StatusProvider
prefixCls={prefixCls}
meta={meta}
errors={meta.errors}
warnings={meta.warnings}
hasFeedback={hasFeedback}
// Already calculated
validateStatus={mergedValidateStatus}
name={name}
>
{children}
</StatusProvider>
</NoStyleItemContext.Provider>
</FormItemInput>
</Row>
{!!marginBottom && (
<div
className={`${itemPrefixCls}-margin-offset`}
style={{
marginBottom: -marginBottom,
}}
/>
)}
</div>
);
}
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