ant-design/components/mention/index.tsx

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import * as React from 'react';
import RcMention, { Nav, toString, toEditorState, getMentions } from 'rc-editor-mention';
import classNames from 'classnames';
import shallowequal from 'shallowequal';
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import Icon from '../icon';
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export type MentionPlacement = 'top' | 'bottom';
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export interface MentionProps {
prefixCls?: string;
suggestionStyle?: React.CSSProperties;
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suggestions?: Array<any>;
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onSearchChange?: (value: string, trigger: string) => any;
onChange?: (contentState: any) => any;
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notFoundContent?: any;
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loading?: boolean;
style?: React.CSSProperties;
defaultValue?: any;
value?: any;
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className?: string;
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multiLines?: boolean;
prefix?: string | string[];
placeholder?: string;
getSuggestionContainer?: (triggerNode: Element) => HTMLElement;
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onFocus?: React.FocusEventHandler<HTMLElement>;
onBlur?: React.FocusEventHandler<HTMLElement>;
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onSelect?: (suggestion: string, data?: any) => any;
readOnly?: boolean;
disabled?: boolean;
placement?: MentionPlacement;
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}
export interface MentionState {
suggestions?: Array<any>;
focus?: Boolean;
}
export default class Mention extends React.Component<MentionProps, MentionState> {
static getMentions = getMentions;
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static defaultProps = {
prefixCls: 'ant-mention',
notFoundContent: '无匹配结果,轻敲空格完成输入',
loading: false,
multiLines: false,
placement: 'bottom',
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};
static Nav = Nav;
static toString = toString;
static toContentState = toEditorState;
private mentionEle: any;
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constructor(props: MentionProps) {
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super(props);
this.state = {
suggestions: props.suggestions,
focus: false,
};
}
componentWillReceiveProps(nextProps: MentionProps) {
const { suggestions } = nextProps;
if (!shallowequal(suggestions, this.props.suggestions)) {
this.setState({
suggestions,
});
}
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}
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onSearchChange = (value: string, prefix: string) => {
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if (this.props.onSearchChange) {
return this.props.onSearchChange(value, prefix);
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}
return this.defaultSearchChange(value);
}
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onChange = (editorState: any) => {
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if (this.props.onChange) {
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this.props.onChange(editorState);
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}
}
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defaultSearchChange(value: string): void {
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const searchValue = value.toLowerCase();
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const filteredSuggestions = (this.props.suggestions || []).filter(
suggestion => {
if (suggestion.type && suggestion.type === Nav) {
return suggestion.props.value ?
suggestion.props.value.toLowerCase().indexOf(searchValue) !== -1
: true;
}
return suggestion.toLowerCase().indexOf(searchValue) !== -1;
},
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);
this.setState({
suggestions: filteredSuggestions,
});
}
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onFocus = (ev: React.FocusEvent<HTMLElement>) => {
this.setState({
focus: true,
});
if (this.props.onFocus) {
this.props.onFocus(ev);
}
}
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onBlur = (ev: React.FocusEvent<HTMLElement>) => {
this.setState({
focus: false,
});
if (this.props.onBlur) {
this.props.onBlur(ev);
}
}
focus = () => {
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this.mentionEle._editor.focusEditor();
}
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mentionRef = (ele: any) => {
this.mentionEle = ele;
}
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render() {
const { className = '', prefixCls, loading, placement } = this.props;
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const { suggestions, focus } = this.state;
const cls = classNames(className, {
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[`${prefixCls}-active`]: focus,
[`${prefixCls}-placement-top`]: placement === 'top',
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});
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const notFoundContent = loading
? <Icon type="loading" />
: this.props.notFoundContent;
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return (
<RcMention
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{...this.props}
className={cls}
ref={this.mentionRef}
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onSearchChange={this.onSearchChange}
onChange={this.onChange}
onFocus={this.onFocus}
onBlur={this.onBlur}
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suggestions={suggestions}
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notFoundContent={notFoundContent}
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/>
);
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}
}