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Rewrite AutosuggestTextarea as Functional Component (#27618)
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Claire
GitHub
parent
a916251d8a
commit
9c8891b39a
2 changed files with 130 additions and 127 deletions
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@ -1,9 +1,9 @@
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import PropTypes from 'prop-types';
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import { useCallback, useRef, useState, useEffect, forwardRef } from 'react';
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import classNames from 'classnames';
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import ImmutablePropTypes from 'react-immutable-proptypes';
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import ImmutablePureComponent from 'react-immutable-pure-component';
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import Textarea from 'react-textarea-autosize';
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@ -37,54 +37,46 @@ const textAtCursorMatchesToken = (str, caretPosition) => {
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}
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};
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export default class AutosuggestTextarea extends ImmutablePureComponent {
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const AutosuggestTextarea = forwardRef(({
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value,
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suggestions,
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disabled,
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placeholder,
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onSuggestionSelected,
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onSuggestionsClearRequested,
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onSuggestionsFetchRequested,
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onChange,
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onKeyUp,
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onKeyDown,
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onPaste,
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onFocus,
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autoFocus = true,
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lang,
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children,
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}, textareaRef) => {
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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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lang: PropTypes.string,
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};
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const [suggestionsHidden, setSuggestionsHidden] = useState(true);
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const [selectedSuggestion, setSelectedSuggestion] = useState(0);
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const lastTokenRef = useRef(null);
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const tokenStartRef = useRef(0);
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static defaultProps = {
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autoFocus: true,
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};
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state = {
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suggestionsHidden: true,
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focused: 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 handleChange = useCallback((e) => {
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const [ tokenStart, token ] = textAtCursorMatchesToken(e.target.value, e.target.selectionStart);
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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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if (token !== null && lastTokenRef.current !== token) {
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tokenStartRef.current = tokenStart;
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lastTokenRef.current = token;
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setSelectedSuggestion(0);
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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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lastTokenRef.current = null;
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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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onChange(e);
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}, [onSuggestionsFetchRequested, onSuggestionsClearRequested, onChange, setSelectedSuggestion]);
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const handleKeyDown = useCallback((e) => {
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if (disabled) {
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e.preventDefault();
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return;
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@ -102,80 +94,75 @@ export default class AutosuggestTextarea extends ImmutablePureComponent {
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document.querySelector('.ui').parentElement.focus();
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} else {
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e.preventDefault();
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this.setState({ suggestionsHidden: true });
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setSuggestionsHidden(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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setSelectedSuggestion(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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setSelectedSuggestion(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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if (lastTokenRef.current !== 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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onSuggestionSelected(tokenStartRef.current, lastTokenRef.current, suggestions.get(selectedSuggestion));
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}
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break;
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}
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if (e.defaultPrevented || !this.props.onKeyDown) {
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if (e.defaultPrevented || !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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onKeyDown(e);
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}, [disabled, suggestions, suggestionsHidden, selectedSuggestion, setSelectedSuggestion, setSuggestionsHidden, onSuggestionSelected, onKeyDown]);
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onBlur = () => {
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this.setState({ suggestionsHidden: true, focused: false });
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};
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const handleBlur = useCallback(() => {
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setSuggestionsHidden(true);
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}, [setSuggestionsHidden]);
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onFocus = (e) => {
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this.setState({ focused: true });
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if (this.props.onFocus) {
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this.props.onFocus(e);
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const handleFocus = useCallback((e) => {
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if (onFocus) {
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onFocus(e);
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}
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};
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}, [onFocus]);
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onSuggestionClick = (e) => {
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const suggestion = this.props.suggestions.get(e.currentTarget.getAttribute('data-index'));
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const handleSuggestionClick = useCallback((e) => {
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const suggestion = suggestions.get(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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onSuggestionSelected(tokenStartRef.current, lastTokenRef.current, suggestion);
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textareaRef.current?.focus();
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}, [suggestions, onSuggestionSelected, textareaRef]);
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UNSAFE_componentWillReceiveProps (nextProps) {
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if (nextProps.suggestions !== this.props.suggestions && nextProps.suggestions.size > 0 && this.state.suggestionsHidden && this.state.focused) {
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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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const handlePaste = useCallback((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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onPaste(e.clipboardData.files);
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e.preventDefault();
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}
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};
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}, [onPaste]);
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renderSuggestion = (suggestion, i) => {
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const { selectedSuggestion } = this.state;
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// Show the suggestions again whenever they change and the textarea is focused
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useEffect(() => {
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if (suggestions.size > 0 && textareaRef.current === document.activeElement) {
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setSuggestionsHidden(false);
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}
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}, [suggestions, textareaRef, setSuggestionsHidden]);
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const renderSuggestion = (suggestion, i) => {
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let inner, key;
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if (suggestion.type === 'emoji') {
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@ -190,50 +177,64 @@ export default class AutosuggestTextarea extends ImmutablePureComponent {
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}
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return (
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<div role='button' tabIndex={0} key={key} data-index={i} className={classNames('autosuggest-textarea__suggestions__item', { selected: i === selectedSuggestion })} onMouseDown={this.onSuggestionClick}>
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<div role='button' tabIndex={0} key={key} data-index={i} className={classNames('autosuggest-textarea__suggestions__item', { selected: i === selectedSuggestion })} onMouseDown={handleSuggestionClick}>
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{inner}
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</div>
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);
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};
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render () {
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const { value, suggestions, disabled, placeholder, onKeyUp, autoFocus, lang, children } = this.props;
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const { suggestionsHidden } = this.state;
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return [
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<div className='compose-form__autosuggest-wrapper' key='autosuggest-wrapper'>
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<div className='autosuggest-textarea'>
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<label>
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<span style={{ display: 'none' }}>{placeholder}</span>
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return [
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<div className='compose-form__autosuggest-wrapper' key='autosuggest-wrapper'>
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<div className='autosuggest-textarea'>
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<label>
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<span style={{ display: 'none' }}>{placeholder}</span>
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<Textarea
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ref={textareaRef}
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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={handleChange}
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onKeyDown={handleKeyDown}
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onKeyUp={onKeyUp}
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onFocus={handleFocus}
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onBlur={handleBlur}
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onPaste={handlePaste}
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dir='auto'
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aria-autocomplete='list'
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lang={lang}
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/>
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</label>
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</div>
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{children}
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</div>,
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<Textarea
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ref={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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onFocus={this.onFocus}
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onBlur={this.onBlur}
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onPaste={this.onPaste}
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dir='auto'
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aria-autocomplete='list'
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lang={lang}
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/>
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</label>
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</div>
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{children}
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</div>,
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<div className='autosuggest-textarea__suggestions-wrapper' key='suggestions-wrapper'>
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<div className={`autosuggest-textarea__suggestions ${suggestionsHidden || suggestions.isEmpty() ? '' : 'autosuggest-textarea__suggestions--visible'}`}>
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{suggestions.map(renderSuggestion)}
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</div>
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</div>,
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];
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});
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<div className='autosuggest-textarea__suggestions-wrapper' key='suggestions-wrapper'>
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<div className={`autosuggest-textarea__suggestions ${suggestionsHidden || suggestions.isEmpty() ? '' : 'autosuggest-textarea__suggestions--visible'}`}>
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{suggestions.map(this.renderSuggestion)}
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</div>
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</div>,
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];
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}
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AutosuggestTextarea.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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onFocus:PropTypes.func,
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children: PropTypes.node,
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autoFocus: PropTypes.bool,
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lang: PropTypes.string,
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};
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}
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export default AutosuggestTextarea;
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@ -1,4 +1,5 @@
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import PropTypes from 'prop-types';
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import { createRef } from 'react';
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import { defineMessages, injectIntl } from 'react-intl';
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@ -79,6 +80,11 @@ class ComposeForm extends ImmutablePureComponent {
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highlighted: false,
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};
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constructor(props) {
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super(props);
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this.textareaRef = createRef(null);
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}
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handleChange = (e) => {
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this.props.onChange(e.target.value);
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};
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@ -102,10 +108,10 @@ class ComposeForm extends ImmutablePureComponent {
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};
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handleSubmit = (e) => {
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if (this.props.text !== this.autosuggestTextarea.textarea.value) {
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if (this.props.text !== this.textareaRef.current.value) {
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// Something changed the text inside the textarea (e.g. browser extensions like Grammarly)
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// Update the state to match the current text
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this.props.onChange(this.autosuggestTextarea.textarea.value);
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this.props.onChange(this.textareaRef.current.value);
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}
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if (!this.canSubmit()) {
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@ -184,26 +190,22 @@ class ComposeForm extends ImmutablePureComponent {
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// immediately selectable, we have to wait for observers to run, as
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// described in https://github.com/WICG/inert#performance-and-gotchas
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Promise.resolve().then(() => {
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this.autosuggestTextarea.textarea.setSelectionRange(selectionStart, selectionEnd);
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this.autosuggestTextarea.textarea.focus();
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this.textareaRef.current.setSelectionRange(selectionStart, selectionEnd);
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this.textareaRef.current.focus();
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this.setState({ highlighted: true });
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this.timeout = setTimeout(() => this.setState({ highlighted: false }), 700);
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}).catch(console.error);
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} else if(prevProps.isSubmitting && !this.props.isSubmitting) {
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this.autosuggestTextarea.textarea.focus();
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this.textareaRef.current.focus();
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} else if (this.props.spoiler !== prevProps.spoiler) {
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if (this.props.spoiler) {
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this.spoilerText.input.focus();
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} else if (prevProps.spoiler) {
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this.autosuggestTextarea.textarea.focus();
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this.textareaRef.current.focus();
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}
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}
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};
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setAutosuggestTextarea = (c) => {
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this.autosuggestTextarea = c;
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};
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setSpoilerText = (c) => {
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this.spoilerText = c;
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};
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@ -214,7 +216,7 @@ class ComposeForm extends ImmutablePureComponent {
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handleEmojiPick = (data) => {
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const { text } = this.props;
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const position = this.autosuggestTextarea.textarea.selectionStart;
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const position = this.textarea.selectionStart;
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const needsSpace = data.custom && position > 0 && !allowedAroundShortCode.includes(text[position - 1]);
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this.props.onPickEmoji(position, data, needsSpace);
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@ -263,7 +265,7 @@ class ComposeForm extends ImmutablePureComponent {
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<div className={classNames('compose-form__highlightable', { active: highlighted })}>
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<AutosuggestTextarea
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ref={this.setAutosuggestTextarea}
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ref={this.textareaRef}
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placeholder={intl.formatMessage(messages.placeholder)}
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disabled={disabled}
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value={this.props.text}
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