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index.tsx
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index.tsx
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import classNames from 'classnames';
import RcMentions from 'rc-mentions';
import type {
MentionsProps as RcMentionsProps,
MentionsRef as RcMentionsRef,
} from 'rc-mentions/lib/Mentions';
import { composeRef } from 'rc-util/lib/ref';
// eslint-disable-next-line import/no-named-as-default
import * as React from 'react';
import { ConfigContext } from '../config-provider';
import defaultRenderEmpty from '../config-provider/defaultRenderEmpty';
import { FormItemInputContext } from '../form/context';
import genPurePanel from '../_util/PurePanel';
import Spin from '../spin';
import type { InputStatus } from '../_util/statusUtils';
import { getMergedStatus, getStatusClassNames } from '../_util/statusUtils';
import useStyle from './style';
export const { Option } = RcMentions;
function loadingFilterOption() {
return true;
}
export type MentionPlacement = 'top' | 'bottom';
export interface OptionProps {
value: string;
children: React.ReactNode;
[key: string]: any;
}
export interface MentionProps extends RcMentionsProps {
loading?: boolean;
status?: InputStatus;
popupClassName?: string;
}
export interface MentionsRef extends RcMentionsRef {}
export interface MentionState {
focused: boolean;
}
interface MentionsConfig {
prefix?: string | string[];
split?: string;
}
interface MentionsEntity {
prefix: string;
value: string;
}
type CompoundedComponent = React.ForwardRefExoticComponent<
MentionProps & React.RefAttributes<MentionsRef>
> & {
Option: typeof Option;
_InternalPanelDoNotUseOrYouWillBeFired: typeof PurePanel;
getMentions: (value: string, config?: MentionsConfig) => MentionsEntity[];
};
const InternalMentions: React.ForwardRefRenderFunction<MentionsRef, MentionProps> = (
{
prefixCls: customizePrefixCls,
className,
disabled,
loading,
filterOption,
children,
notFoundContent,
status: customStatus,
popupClassName,
...restProps
},
ref,
) => {
const [focused, setFocused] = React.useState(false);
const innerRef = React.useRef<MentionsRef>();
const mergedRef = composeRef(ref, innerRef);
const { getPrefixCls, renderEmpty, direction } = React.useContext(ConfigContext);
const {
status: contextStatus,
hasFeedback,
feedbackIcon,
} = React.useContext(FormItemInputContext);
const mergedStatus = getMergedStatus(contextStatus, customStatus);
const onFocus: React.FocusEventHandler<HTMLTextAreaElement> = (...args) => {
if (restProps.onFocus) {
restProps.onFocus(...args);
}
setFocused(true);
};
const onBlur: React.FocusEventHandler<HTMLTextAreaElement> = (...args) => {
if (restProps.onBlur) {
restProps.onBlur(...args);
}
setFocused(false);
};
const getNotFoundContent = () => {
if (notFoundContent !== undefined) {
return notFoundContent;
}
return (renderEmpty || defaultRenderEmpty)('Select');
};
const getOptions = () => {
if (loading) {
return (
<Option value="ANTD_SEARCHING" disabled>
<Spin size="small" />
</Option>
);
}
return children;
};
const getFilterOption = (): any => {
if (loading) {
return loadingFilterOption;
}
return filterOption;
};
const prefixCls = getPrefixCls('mentions', customizePrefixCls);
// Style
const [wrapSSR, hashId] = useStyle(prefixCls);
const mergedClassName = classNames(
{
[`${prefixCls}-disabled`]: disabled,
[`${prefixCls}-focused`]: focused,
[`${prefixCls}-rtl`]: direction === 'rtl',
},
getStatusClassNames(prefixCls, mergedStatus),
!hasFeedback && className,
hashId,
);
const mentions = (
<RcMentions
prefixCls={prefixCls}
notFoundContent={getNotFoundContent()}
className={mergedClassName}
disabled={disabled}
direction={direction}
{...restProps}
filterOption={getFilterOption()}
onFocus={onFocus}
onBlur={onBlur}
dropdownClassName={classNames(popupClassName, hashId)}
ref={mergedRef as any}
>
{getOptions()}
</RcMentions>
);
if (hasFeedback) {
return (
<div
className={classNames(
`${prefixCls}-affix-wrapper`,
getStatusClassNames(`${prefixCls}-affix-wrapper`, mergedStatus, hasFeedback),
className,
hashId,
)}
>
{mentions}
<span className={`${prefixCls}-suffix`}>{feedbackIcon}</span>
</div>
);
}
return wrapSSR(mentions);
};
const Mentions = React.forwardRef<MentionsRef, MentionProps>(
InternalMentions,
) as CompoundedComponent;
if (process.env.NODE_ENV !== 'production') {
Mentions.displayName = 'Mentions';
}
Mentions.Option = Option;
// We don't care debug panel
/* istanbul ignore next */
const PurePanel = genPurePanel(Mentions, 'mentions');
Mentions._InternalPanelDoNotUseOrYouWillBeFired = PurePanel;
Mentions.getMentions = (value: string = '', config: MentionsConfig = {}): MentionsEntity[] => {
const { prefix = '@', split = ' ' } = config;
const prefixList: string[] = Array.isArray(prefix) ? prefix : [prefix];
return value
.split(split)
.map((str = ''): MentionsEntity | null => {
let hitPrefix: string | null = null;
prefixList.some((prefixStr) => {
const startStr = str.slice(0, prefixStr.length);
if (startStr === prefixStr) {
hitPrefix = prefixStr;
return true;
}
return false;
});
if (hitPrefix !== null) {
return {
prefix: hitPrefix,
value: str.slice((hitPrefix as string).length),
};
}
return null;
})
.filter((entity): entity is MentionsEntity => !!entity && !!entity.value);
};
export default Mentions;