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8a1dfe8af1
ref.ts remove
170 lines
4.0 KiB
TypeScript
170 lines
4.0 KiB
TypeScript
import * as React from 'react';
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import classNames from 'classnames';
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import RcMentions from 'rc-mentions';
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import { MentionsProps as RcMentionsProps } from 'rc-mentions/lib/Mentions';
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import { composeRef } from 'rc-util/lib/ref';
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import Spin from '../spin';
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import { ConfigContext } from '../config-provider';
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export const { Option } = RcMentions;
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function loadingFilterOption() {
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return true;
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}
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export type MentionPlacement = 'top' | 'bottom';
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export interface OptionProps {
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value: string;
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children: React.ReactNode;
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[key: string]: any;
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}
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export interface MentionProps extends RcMentionsProps {
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loading?: boolean;
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}
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export interface MentionState {
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focused: boolean;
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}
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interface MentionsConfig {
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prefix?: string | string[];
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split?: string;
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}
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interface MentionsEntity {
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prefix: string;
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value: string;
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}
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interface CompoundedComponent
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extends React.ForwardRefExoticComponent<MentionProps & React.RefAttributes<HTMLElement>> {
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Option: typeof Option;
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getMentions: (value: string, config?: MentionsConfig) => MentionsEntity[];
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}
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const InternalMentions: React.ForwardRefRenderFunction<unknown, MentionProps> = (
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{
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prefixCls: customizePrefixCls,
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className,
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disabled,
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loading,
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filterOption,
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children,
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notFoundContent,
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...restProps
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},
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ref,
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) => {
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const [focused, setFocused] = React.useState(false);
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const innerRef = React.useRef<HTMLElement>();
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const mergedRef = composeRef(ref, innerRef);
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const { getPrefixCls, renderEmpty, direction } = React.useContext(ConfigContext);
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const onFocus: React.FocusEventHandler<HTMLTextAreaElement> = (...args) => {
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if (restProps.onFocus) {
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restProps.onFocus(...args);
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}
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setFocused(true);
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};
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const onBlur: React.FocusEventHandler<HTMLTextAreaElement> = (...args) => {
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if (restProps.onBlur) {
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restProps.onBlur(...args);
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}
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setFocused(false);
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};
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const getNotFoundContent = () => {
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if (notFoundContent !== undefined) {
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return notFoundContent;
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}
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return renderEmpty('Select');
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};
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const getOptions = () => {
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if (loading) {
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return (
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<Option value="ANTD_SEARCHING" disabled>
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<Spin size="small" />
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</Option>
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);
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}
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return children;
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};
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const getFilterOption = (): any => {
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if (loading) {
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return loadingFilterOption;
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}
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return filterOption;
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};
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const prefixCls = getPrefixCls('mentions', customizePrefixCls);
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const mergedClassName = classNames(
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{
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[`${prefixCls}-disabled`]: disabled,
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[`${prefixCls}-focused`]: focused,
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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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return (
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<RcMentions
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prefixCls={prefixCls}
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notFoundContent={getNotFoundContent()}
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className={mergedClassName}
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disabled={disabled}
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direction={direction}
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{...restProps}
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filterOption={getFilterOption()}
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onFocus={onFocus}
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onBlur={onBlur}
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ref={mergedRef as any}
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>
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{getOptions()}
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</RcMentions>
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);
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};
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const Mentions = React.forwardRef<unknown, MentionProps>(InternalMentions) as CompoundedComponent;
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Mentions.displayName = 'Mentions';
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Mentions.Option = Option;
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Mentions.getMentions = (value: string = '', config?: MentionsConfig): MentionsEntity[] => {
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const { prefix = '@', split = ' ' } = config || {};
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const prefixList: string[] = Array.isArray(prefix) ? prefix : [prefix];
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return value
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.split(split)
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.map((str = ''): MentionsEntity | null => {
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let hitPrefix: string | null = null;
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prefixList.some(prefixStr => {
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const startStr = str.slice(0, prefixStr.length);
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if (startStr === prefixStr) {
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hitPrefix = prefixStr;
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return true;
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}
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return false;
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});
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if (hitPrefix !== null) {
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return {
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prefix: hitPrefix,
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value: str.slice(hitPrefix!.length),
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};
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}
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return null;
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})
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.filter((entity): entity is MentionsEntity => !!entity && !!entity.value);
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};
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export default Mentions;
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