2017-05-02 20:04:16 -04:00
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import React from 'react';
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2016-12-14 12:21:31 -05:00
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import AutosuggestAccountContainer from '../features/compose/containers/autosuggest_account_container';
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import ImmutablePropTypes from 'react-immutable-proptypes';
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2017-04-21 14:05:35 -04:00
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import PropTypes from 'prop-types';
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2017-02-27 19:52:31 -05:00
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import { isRtl } from '../rtl';
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2017-05-02 20:04:16 -04:00
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import ImmutablePureComponent from 'react-immutable-pure-component';
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2017-05-26 12:22:23 -04:00
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import Textarea from 'react-textarea-autosize';
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2016-12-14 12:21:31 -05:00
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const textAtCursorMatchesToken = (str, caretPosition) => {
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let word;
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let left = str.slice(0, caretPosition).search(/\S+$/);
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let right = str.slice(caretPosition).search(/\s/);
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if (right < 0) {
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word = str.slice(left);
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} else {
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word = str.slice(left, right + caretPosition);
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}
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if (!word || word.trim().length < 2 || word[0] !== '@') {
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return [null, null];
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}
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word = word.trim().toLowerCase().slice(1);
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if (word.length > 0) {
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return [left + 1, word];
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} else {
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return [null, null];
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}
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};
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2017-05-02 20:04:16 -04:00
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class AutosuggestTextarea extends ImmutablePureComponent {
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2017-05-12 08:44:10 -04:00
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static propTypes = {
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value: PropTypes.string,
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suggestions: ImmutablePropTypes.list,
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disabled: PropTypes.bool,
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placeholder: PropTypes.string,
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onSuggestionSelected: PropTypes.func.isRequired,
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onSuggestionsClearRequested: PropTypes.func.isRequired,
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onSuggestionsFetchRequested: PropTypes.func.isRequired,
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onChange: PropTypes.func.isRequired,
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onKeyUp: PropTypes.func,
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onKeyDown: PropTypes.func,
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onPaste: PropTypes.func.isRequired,
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autoFocus: PropTypes.bool,
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};
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static defaultProps = {
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autoFocus: true,
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};
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2017-05-24 11:55:16 -04:00
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state = {
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suggestionsHidden: false,
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selectedSuggestion: 0,
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lastToken: null,
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tokenStart: 0,
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};
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onChange = (e) => {
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const [ tokenStart, token ] = textAtCursorMatchesToken(e.target.value, e.target.selectionStart);
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2017-01-30 15:40:55 -05:00
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if (token !== null && this.state.lastToken !== token) {
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this.setState({ lastToken: token, selectedSuggestion: 0, tokenStart });
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this.props.onSuggestionsFetchRequested(token);
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} else if (token === null) {
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this.setState({ lastToken: null });
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this.props.onSuggestionsClearRequested();
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}
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this.props.onChange(e);
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}
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onKeyDown = (e) => {
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const { suggestions, disabled } = this.props;
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const { selectedSuggestion, suggestionsHidden } = this.state;
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if (disabled) {
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e.preventDefault();
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return;
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}
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switch(e.key) {
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case 'Escape':
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if (!suggestionsHidden) {
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e.preventDefault();
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this.setState({ suggestionsHidden: true });
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}
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break;
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case 'ArrowDown':
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if (suggestions.size > 0 && !suggestionsHidden) {
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e.preventDefault();
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this.setState({ selectedSuggestion: Math.min(selectedSuggestion + 1, suggestions.size - 1) });
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}
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break;
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case 'ArrowUp':
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if (suggestions.size > 0 && !suggestionsHidden) {
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e.preventDefault();
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this.setState({ selectedSuggestion: Math.max(selectedSuggestion - 1, 0) });
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}
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break;
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case 'Enter':
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case 'Tab':
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// Select suggestion
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if (this.state.lastToken !== null && suggestions.size > 0 && !suggestionsHidden) {
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e.preventDefault();
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e.stopPropagation();
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this.props.onSuggestionSelected(this.state.tokenStart, this.state.lastToken, suggestions.get(selectedSuggestion));
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}
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break;
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}
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2017-01-04 21:29:43 -05:00
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if (e.defaultPrevented || !this.props.onKeyDown) {
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return;
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}
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this.props.onKeyDown(e);
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}
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2017-05-24 11:55:16 -04:00
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onBlur = () => {
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// If we hide the suggestions immediately, then this will prevent the
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// onClick for the suggestions themselves from firing.
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// Setting a short window for that to take place before hiding the
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// suggestions ensures that can't happen.
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setTimeout(() => {
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this.setState({ suggestionsHidden: true });
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}, 100);
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}
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onSuggestionClick = (e) => {
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const suggestion = Number(e.currentTarget.getAttribute('data-index'));
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e.preventDefault();
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this.props.onSuggestionSelected(this.state.tokenStart, this.state.lastToken, suggestion);
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this.textarea.focus();
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}
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componentWillReceiveProps (nextProps) {
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if (nextProps.suggestions !== this.props.suggestions && nextProps.suggestions.size > 0 && this.state.suggestionsHidden) {
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this.setState({ suggestionsHidden: false });
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}
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}
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setTextarea = (c) => {
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this.textarea = c;
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}
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onPaste = (e) => {
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if (e.clipboardData && e.clipboardData.files.length === 1) {
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this.props.onPaste(e.clipboardData.files);
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e.preventDefault();
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}
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}
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2016-12-14 12:21:31 -05:00
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render () {
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const { value, suggestions, disabled, placeholder, onKeyUp, autoFocus } = this.props;
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const { suggestionsHidden, selectedSuggestion } = this.state;
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const style = { direction: 'ltr' };
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if (isRtl(value)) {
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style.direction = 'rtl';
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}
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2016-12-14 12:21:31 -05:00
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return (
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<div className='autosuggest-textarea'>
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<Textarea
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inputRef={this.setTextarea}
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className='autosuggest-textarea__textarea'
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disabled={disabled}
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placeholder={placeholder}
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autoFocus={autoFocus}
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value={value}
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onChange={this.onChange}
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onKeyDown={this.onKeyDown}
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onKeyUp={onKeyUp}
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onBlur={this.onBlur}
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onPaste={this.onPaste}
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style={style}
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/>
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2017-05-19 05:42:54 -04:00
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<div className={`autosuggest-textarea__suggestions ${suggestionsHidden || suggestions.isEmpty() ? '' : 'autosuggest-textarea__suggestions--visible'}`}>
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{suggestions.map((suggestion, i) => (
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<div
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role='button'
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tabIndex='0'
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key={suggestion}
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data-index={suggestion}
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className={`autosuggest-textarea__suggestions__item ${i === selectedSuggestion ? 'selected' : ''}`}
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onClick={this.onSuggestionClick}
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>
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<AutosuggestAccountContainer id={suggestion} />
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</div>
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))}
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</div>
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</div>
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);
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}
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2017-05-12 08:44:10 -04:00
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}
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2016-12-14 12:21:31 -05:00
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2017-03-01 05:56:15 -05:00
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export default AutosuggestTextarea;
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