ant-design/components/form/FormItem.tsx
2022-04-12 15:59:36 +08:00

471 lines
15 KiB
TypeScript

import * as React from 'react';
import type { ReactNode } from 'react';
import { useContext, useMemo } from 'react';
import classNames from 'classnames';
import type { FormInstance } from 'rc-field-form';
import { Field, FieldContext, ListContext } from 'rc-field-form';
import type { FieldProps } from 'rc-field-form/lib/Field';
import type { Meta, NamePath } from 'rc-field-form/lib/interface';
import { supportRef } from 'rc-util/lib/ref';
import useState from 'rc-util/lib/hooks/useState';
import omit from 'rc-util/lib/omit';
import CheckCircleFilled from '@ant-design/icons/CheckCircleFilled';
import ExclamationCircleFilled from '@ant-design/icons/ExclamationCircleFilled';
import CloseCircleFilled from '@ant-design/icons/CloseCircleFilled';
import LoadingOutlined from '@ant-design/icons/LoadingOutlined';
import useStyle from './style';
import Row from '../grid/row';
import { ConfigContext } from '../config-provider';
import { tuple } from '../_util/type';
import devWarning from '../_util/devWarning';
import type { FormItemLabelProps, LabelTooltipType } from './FormItemLabel';
import FormItemLabel from './FormItemLabel';
import type { FormItemInputProps } from './FormItemInput';
import FormItemInput from './FormItemInput';
import type { FormItemStatusContextProps } from './context';
import { FormContext, FormItemInputContext, NoStyleItemContext } from './context';
import { toArray, getFieldId } from './util';
import { cloneElement, isValidElement } from '../_util/reactNode';
import useFrameState from './hooks/useFrameState';
import useDebounce from './hooks/useDebounce';
import useItemRef from './hooks/useItemRef';
const NAME_SPLIT = '__SPLIT__';
interface FieldError {
errors: string[];
warnings: string[];
}
const ValidateStatuses = tuple('success', 'warning', 'error', 'validating', '');
export type ValidateStatus = typeof ValidateStatuses[number];
type RenderChildren<Values = any> = (form: FormInstance<Values>) => React.ReactNode;
type RcFieldProps<Values = any> = Omit<FieldProps<Values>, 'children'>;
type ChildrenType<Values = any> = RenderChildren<Values> | React.ReactNode;
interface MemoInputProps {
value: any;
update: any;
children: React.ReactNode;
}
const MemoInput = React.memo(
({ children }: MemoInputProps) => children as JSX.Element,
(prev, next) => prev.value === next.value && prev.update === next.update,
);
export interface FormItemProps<Values = any>
extends FormItemLabelProps,
FormItemInputProps,
RcFieldProps<Values> {
prefixCls?: string;
noStyle?: boolean;
style?: React.CSSProperties;
className?: string;
children?: ChildrenType<Values>;
id?: string;
hasFeedback?: boolean;
validateStatus?: ValidateStatus;
required?: boolean;
hidden?: boolean;
initialValue?: any;
messageVariables?: Record<string, string>;
tooltip?: LabelTooltipType;
/** @deprecated No need anymore */
fieldKey?: React.Key | React.Key[];
}
function hasValidName(name?: NamePath): Boolean {
if (name === null) {
devWarning(false, 'Form.Item', '`null` is passed as `name` property');
}
return !(name === undefined || name === null);
}
function genEmptyMeta(): Meta {
return {
errors: [],
warnings: [],
touched: false,
validating: false,
name: [],
};
}
const iconMap = {
success: CheckCircleFilled,
warning: ExclamationCircleFilled,
error: CloseCircleFilled,
validating: LoadingOutlined,
};
function FormItem<Values = any>(props: FormItemProps<Values>): React.ReactElement {
const {
name,
noStyle,
dependencies,
prefixCls: customizePrefixCls,
style,
className,
shouldUpdate,
hasFeedback,
help,
rules,
validateStatus,
children,
required,
label,
messageVariables,
trigger = 'onChange',
validateTrigger,
hidden,
...restProps
} = props;
const { getPrefixCls } = useContext(ConfigContext);
const { name: formName, requiredMark } = useContext(FormContext);
const isRenderProps = typeof children === 'function';
const notifyParentMetaChange = useContext(NoStyleItemContext);
const { validateTrigger: contextValidateTrigger } = useContext(FieldContext);
const mergedValidateTrigger =
validateTrigger !== undefined ? validateTrigger : contextValidateTrigger;
const hasName = hasValidName(name);
const prefixCls = getPrefixCls('form', customizePrefixCls);
// Style
const [wrapSSR, hashId] = useStyle(prefixCls);
// ========================= MISC =========================
// Get `noStyle` required info
const listContext = React.useContext(ListContext);
const fieldKeyPathRef = React.useRef<React.Key[]>();
// ======================== Errors ========================
// >>>>> Collect sub field errors
const [subFieldErrors, setSubFieldErrors] = useFrameState<Record<string, FieldError>>({});
// >>>>> Current field errors
const [meta, setMeta] = useState<Meta>(() => genEmptyMeta());
const onMetaChange = (nextMeta: Meta & { destroy?: boolean }) => {
// This keyInfo is not correct when field is removed
// Since origin keyManager no longer keep the origin key anymore
// Which means we need cache origin one and reuse when removed
const keyInfo = listContext?.getKey(nextMeta.name);
// Destroy will reset all the meta
setMeta(nextMeta.destroy ? genEmptyMeta() : nextMeta, true);
// Bump to parent since noStyle
if (noStyle && notifyParentMetaChange) {
let namePath = nextMeta.name;
if (!nextMeta.destroy) {
if (keyInfo !== undefined) {
const [fieldKey, restPath] = keyInfo;
namePath = [fieldKey, ...restPath];
fieldKeyPathRef.current = namePath;
}
} else {
// Use origin cache data
namePath = fieldKeyPathRef.current || namePath;
}
notifyParentMetaChange(nextMeta, namePath);
}
};
// >>>>> Collect noStyle Field error to the top FormItem
const onSubItemMetaChange = (subMeta: Meta & { destroy: boolean }, uniqueKeys: React.Key[]) => {
// Only `noStyle` sub item will trigger
setSubFieldErrors(prevSubFieldErrors => {
const clone = {
...prevSubFieldErrors,
};
// name: ['user', 1] + key: [4] = ['user', 4]
const mergedNamePath = [...subMeta.name.slice(0, -1), ...uniqueKeys];
const mergedNameKey = mergedNamePath.join(NAME_SPLIT);
if (subMeta.destroy) {
// Remove
delete clone[mergedNameKey];
} else {
// Update
clone[mergedNameKey] = subMeta;
}
return clone;
});
};
// >>>>> Get merged errors
const [mergedErrors, mergedWarnings] = React.useMemo(() => {
const errorList: string[] = [...meta.errors];
const warningList: string[] = [...meta.warnings];
Object.values(subFieldErrors).forEach(subFieldError => {
errorList.push(...(subFieldError.errors || []));
warningList.push(...(subFieldError.warnings || []));
});
return [errorList, warningList];
}, [subFieldErrors, meta.errors, meta.warnings]);
const debounceErrors = useDebounce(mergedErrors);
const debounceWarnings = useDebounce(mergedWarnings);
// ===================== Children Ref =====================
const getItemRef = useItemRef();
// ======================== Status ========================
let mergedValidateStatus: ValidateStatus = '';
if (validateStatus !== undefined) {
mergedValidateStatus = validateStatus;
} else if (meta?.validating) {
mergedValidateStatus = 'validating';
} else if (debounceErrors.length) {
mergedValidateStatus = 'error';
} else if (debounceWarnings.length) {
mergedValidateStatus = 'warning';
} else if (meta?.touched) {
mergedValidateStatus = 'success';
}
const formItemStatusContext = useMemo<FormItemStatusContextProps>(() => {
let feedbackIcon: ReactNode;
if (hasFeedback) {
const IconNode = mergedValidateStatus && iconMap[mergedValidateStatus];
feedbackIcon = IconNode ? (
<span
className={classNames(
`${prefixCls}-item-feedback-icon`,
`${prefixCls}-item-feedback-icon-${mergedValidateStatus}`,
)}
>
<IconNode />
</span>
) : null;
}
return {
status: mergedValidateStatus,
hasFeedback,
feedbackIcon,
isFormItemInput: true,
};
}, [mergedValidateStatus, hasFeedback]);
// ======================== Render ========================
function renderLayout(
baseChildren: React.ReactNode,
fieldId?: string,
isRequired?: boolean,
): React.ReactNode {
if (noStyle && !hidden) {
return baseChildren;
}
const itemClassName = {
[`${prefixCls}-item`]: true,
[`${prefixCls}-item-with-help`]:
(help !== undefined && help !== null) || debounceErrors.length || debounceWarnings.length,
[`${className}`]: !!className,
// Status
[`${prefixCls}-item-has-feedback`]: mergedValidateStatus && hasFeedback,
[`${prefixCls}-item-has-success`]: mergedValidateStatus === 'success',
[`${prefixCls}-item-has-warning`]: mergedValidateStatus === 'warning',
[`${prefixCls}-item-has-error`]: mergedValidateStatus === 'error',
[`${prefixCls}-item-is-validating`]: mergedValidateStatus === 'validating',
[`${prefixCls}-item-hidden`]: hidden,
};
// ======================= Children =======================
return (
<Row
className={classNames(itemClassName, hashId)}
style={style}
key="row"
{...omit(restProps, [
'colon',
'extra',
'fieldKey',
'requiredMark',
'getValueFromEvent',
'getValueProps',
'htmlFor',
'id', // It is deprecated because `htmlFor` is its replacement.
'initialValue',
'isListField',
'labelAlign',
'labelWrap',
'labelCol',
'normalize',
'preserve',
'tooltip',
'validateFirst',
'valuePropName',
'wrapperCol',
'_internalItemRender' as any,
])}
>
{/* Label */}
<FormItemLabel
htmlFor={fieldId}
required={isRequired}
requiredMark={requiredMark}
{...props}
prefixCls={prefixCls}
/>
{/* Input Group */}
<FormItemInput
{...props}
{...meta}
errors={debounceErrors}
warnings={debounceWarnings}
prefixCls={prefixCls}
status={mergedValidateStatus}
help={help}
>
<NoStyleItemContext.Provider value={onSubItemMetaChange}>
<FormItemInputContext.Provider value={formItemStatusContext}>
{baseChildren}
</FormItemInputContext.Provider>
</NoStyleItemContext.Provider>
</FormItemInput>
</Row>
);
}
if (!hasName && !isRenderProps && !dependencies) {
return wrapSSR(renderLayout(children) as JSX.Element);
}
let variables: Record<string, string> = {};
if (typeof label === 'string') {
variables.label = label;
} else if (name) {
variables.label = String(name);
}
if (messageVariables) {
variables = { ...variables, ...messageVariables };
}
// >>>>> With Field
return wrapSSR(
<Field
{...props}
messageVariables={variables}
trigger={trigger}
validateTrigger={mergedValidateTrigger}
onMetaChange={onMetaChange}
>
{(control, renderMeta, context) => {
const mergedName = toArray(name).length && renderMeta ? renderMeta.name : [];
const fieldId = getFieldId(mergedName, formName);
const isRequired =
required !== undefined
? required
: !!(
rules &&
rules.some(rule => {
if (rule && typeof rule === 'object' && rule.required && !rule.warningOnly) {
return true;
}
if (typeof rule === 'function') {
const ruleEntity = rule(context);
return ruleEntity && ruleEntity.required && !ruleEntity.warningOnly;
}
return false;
})
);
// ======================= Children =======================
const mergedControl: typeof control = {
...control,
};
let childNode: React.ReactNode = null;
devWarning(
!(shouldUpdate && dependencies),
'Form.Item',
"`shouldUpdate` and `dependencies` shouldn't be used together. See https://ant.design/components/form/#dependencies.",
);
if (Array.isArray(children) && hasName) {
devWarning(false, 'Form.Item', '`children` is array of render props cannot have `name`.');
childNode = children;
} else if (isRenderProps && (!(shouldUpdate || dependencies) || hasName)) {
devWarning(
!!(shouldUpdate || dependencies),
'Form.Item',
'`children` of render props only work with `shouldUpdate` or `dependencies`.',
);
devWarning(
!hasName,
'Form.Item',
"Do not use `name` with `children` of render props since it's not a field.",
);
} else if (dependencies && !isRenderProps && !hasName) {
devWarning(
false,
'Form.Item',
'Must set `name` or use render props when `dependencies` is set.',
);
} else if (isValidElement(children)) {
devWarning(
children.props.defaultValue === undefined,
'Form.Item',
'`defaultValue` will not work on controlled Field. You should use `initialValues` of Form instead.',
);
const childProps = { ...children.props, ...mergedControl };
if (!childProps.id) {
childProps.id = fieldId;
}
if (supportRef(children)) {
childProps.ref = getItemRef(mergedName, children);
}
// We should keep user origin event handler
const triggers = new Set<string>([
...toArray(trigger),
...toArray(mergedValidateTrigger),
]);
triggers.forEach(eventName => {
childProps[eventName] = (...args: any[]) => {
mergedControl[eventName]?.(...args);
children.props[eventName]?.(...args);
};
});
childNode = (
<MemoInput value={mergedControl[props.valuePropName || 'value']} update={children}>
{cloneElement(children, childProps)}
</MemoInput>
);
} else if (isRenderProps && (shouldUpdate || dependencies) && !hasName) {
childNode = (children as RenderChildren)(context);
} else {
devWarning(
!mergedName.length,
'Form.Item',
'`name` is only used for validate React element. If you are using Form.Item as layout display, please remove `name` instead.',
);
childNode = children as React.ReactNode;
}
return renderLayout(childNode, fieldId, isRequired);
}}
</Field>,
);
}
export default FormItem;