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Convert LanguageDropdownMenu to functional component (#33704)
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Claire
GitHub
parent
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commit
9a0166c3f3
@ -1,5 +1,5 @@
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import PropTypes from 'prop-types';
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import { useCallback, useRef, useState, useEffect, PureComponent } from 'react';
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import { useCallback, useRef, useState, useEffect, useMemo } from 'react';
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import { useIntl, defineMessages } from 'react-intl';
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@ -30,68 +30,142 @@ const messages = defineMessages({
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const listenerOptions = supportsPassiveEvents ? { passive: true, capture: true } : true;
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class LanguageDropdownMenu extends PureComponent {
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const getFrequentlyUsedLanguages = createSelector([
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state => state.getIn(['settings', 'frequentlyUsedLanguages'], ImmutableMap()),
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], languageCounters => (
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languageCounters.keySeq()
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.sort((a, b) => languageCounters.get(a) - languageCounters.get(b))
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.reverse()
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.toArray()
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));
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static propTypes = {
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value: PropTypes.string.isRequired,
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guess: PropTypes.string,
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frequentlyUsedLanguages: PropTypes.arrayOf(PropTypes.string).isRequired,
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onClose: PropTypes.func.isRequired,
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onChange: PropTypes.func.isRequired,
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languages: PropTypes.arrayOf(PropTypes.arrayOf(PropTypes.string)),
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intl: PropTypes.object,
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};
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const LanguageDropdownMenu = ({ value, guess, onClose, onChange, languages = preloadedLanguages, intl }) => {
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const [searchValue, setSearchValue] = useState('');
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const nodeRef = useRef(null);
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const listNodeRef = useRef(null);
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static defaultProps = {
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languages: preloadedLanguages,
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};
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const frequentlyUsedLanguages = useAppSelector(getFrequentlyUsedLanguages);
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state = {
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searchValue: '',
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};
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const handleSearchChange = useCallback(({ target }) => {
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setSearchValue(target.value);
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}, [setSearchValue]);
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handleDocumentClick = e => {
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if (this.node && !this.node.contains(e.target)) {
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this.props.onClose();
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const handleClick = useCallback((e) => {
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const value = e.currentTarget.getAttribute('data-index');
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e.preventDefault();
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onClose();
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onChange(value);
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}, [onClose, onChange]);
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const handleKeyDown = useCallback(e => {
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const index = Array.from(listNodeRef.current.childNodes).findIndex(node => node === e.currentTarget);
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let element = null;
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switch(e.key) {
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case 'Escape':
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onClose();
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break;
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case ' ':
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case 'Enter':
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handleClick(e);
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break;
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case 'ArrowDown':
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element = listNodeRef.current.childNodes[index + 1] || listNodeRef.current.firstChild;
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break;
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case 'ArrowUp':
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element = listNodeRef.current.childNodes[index - 1] || listNodeRef.current.lastChild;
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break;
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case 'Tab':
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if (e.shiftKey) {
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element = listNodeRef.current.childNodes[index - 1] || listNodeRef.current.lastChild;
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} else {
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element = listNodeRef.current.childNodes[index + 1] || listNodeRef.current.firstChild;
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}
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break;
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case 'Home':
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element = listNodeRef.current.firstChild;
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break;
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case 'End':
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element = listNodeRef.current.lastChild;
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break;
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}
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if (element) {
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element.focus();
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e.preventDefault();
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e.stopPropagation();
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}
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};
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}, [onClose, handleClick]);
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componentDidMount () {
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document.addEventListener('click', this.handleDocumentClick, { capture: true });
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document.addEventListener('touchend', this.handleDocumentClick, listenerOptions);
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const handleSearchKeyDown = useCallback(e => {
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let element = null;
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switch(e.key) {
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case 'Tab':
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case 'ArrowDown':
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element = listNodeRef.current.firstChild;
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if (element) {
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element.focus();
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e.preventDefault();
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e.stopPropagation();
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}
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break;
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case 'Enter':
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element = listNodeRef.current.firstChild;
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if (element) {
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onChange(element.getAttribute('data-index'));
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onClose();
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}
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break;
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case 'Escape':
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if (searchValue !== '') {
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e.preventDefault();
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this.handleClear();
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}
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break;
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}
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}, [onChange, onClose, searchValue]);
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const handleClear = useCallback(() => {
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setSearchValue('');
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}, [setSearchValue]);
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const isSearching = searchValue !== '';
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useEffect(() => {
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const handleDocumentClick = (e) => {
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if (nodeRef.current && !nodeRef.current.contains(e.target)) {
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onClose();
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e.stopPropagation();
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}
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};
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document.addEventListener('click', handleDocumentClick, { capture: true });
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document.addEventListener('touchend', handleDocumentClick, listenerOptions);
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// Because of https://github.com/react-bootstrap/react-bootstrap/issues/2614 we need
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// to wait for a frame before focusing
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requestAnimationFrame(() => {
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if (this.node) {
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const element = this.node.querySelector('input[type="search"]');
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if (nodeRef.current) {
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const element = nodeRef.current.querySelector('input[type="search"]');
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if (element) element.focus();
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}
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});
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}
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componentWillUnmount () {
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document.removeEventListener('click', this.handleDocumentClick, { capture: true });
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document.removeEventListener('touchend', this.handleDocumentClick, listenerOptions);
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}
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setRef = c => {
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this.node = c;
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};
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setListRef = c => {
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this.listNode = c;
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};
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handleSearchChange = ({ target }) => {
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this.setState({ searchValue: target.value });
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};
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search () {
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const { languages, value, frequentlyUsedLanguages, guess } = this.props;
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const { searchValue } = this.state;
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return () => {
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document.removeEventListener('click', handleDocumentClick, { capture: true });
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document.removeEventListener('touchend', handleDocumentClick, listenerOptions);
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};
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}, [onClose]);
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const results = useMemo(() => {
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if (searchValue === '') {
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return [...languages].sort((a, b) => {
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@ -119,139 +193,34 @@ class LanguageDropdownMenu extends PureComponent {
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limit: 5,
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threshold: -10000,
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}).map(result => result.obj);
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}
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}, [searchValue, languages, guess, frequentlyUsedLanguages, value]);
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handleClick = e => {
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const value = e.currentTarget.getAttribute('data-index');
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e.preventDefault();
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this.props.onClose();
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this.props.onChange(value);
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};
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handleKeyDown = e => {
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const { onClose } = this.props;
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const index = Array.from(this.listNode.childNodes).findIndex(node => node === e.currentTarget);
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let element = null;
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switch(e.key) {
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case 'Escape':
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onClose();
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break;
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case ' ':
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case 'Enter':
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this.handleClick(e);
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break;
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case 'ArrowDown':
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element = this.listNode.childNodes[index + 1] || this.listNode.firstChild;
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break;
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case 'ArrowUp':
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element = this.listNode.childNodes[index - 1] || this.listNode.lastChild;
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break;
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case 'Tab':
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if (e.shiftKey) {
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element = this.listNode.childNodes[index - 1] || this.listNode.lastChild;
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} else {
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element = this.listNode.childNodes[index + 1] || this.listNode.firstChild;
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}
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break;
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case 'Home':
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element = this.listNode.firstChild;
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break;
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case 'End':
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element = this.listNode.lastChild;
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break;
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}
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if (element) {
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element.focus();
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e.preventDefault();
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e.stopPropagation();
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}
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};
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handleSearchKeyDown = e => {
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const { onChange, onClose } = this.props;
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const { searchValue } = this.state;
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let element = null;
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switch(e.key) {
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case 'Tab':
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case 'ArrowDown':
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element = this.listNode.firstChild;
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if (element) {
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element.focus();
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e.preventDefault();
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e.stopPropagation();
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}
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break;
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case 'Enter':
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element = this.listNode.firstChild;
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if (element) {
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onChange(element.getAttribute('data-index'));
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onClose();
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}
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break;
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case 'Escape':
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if (searchValue !== '') {
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e.preventDefault();
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this.handleClear();
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}
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break;
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}
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};
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handleClear = () => {
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this.setState({ searchValue: '' });
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};
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renderItem = lang => {
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const { value } = this.props;
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return (
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<div key={lang[0]} role='option' tabIndex={0} data-index={lang[0]} className={classNames('language-dropdown__dropdown__results__item', { active: lang[0] === value })} aria-selected={lang[0] === value} onClick={this.handleClick} onKeyDown={this.handleKeyDown}>
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<span className='language-dropdown__dropdown__results__item__native-name' lang={lang[0]}>{lang[2]}</span> <span className='language-dropdown__dropdown__results__item__common-name'>({lang[1]})</span>
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return (
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<div ref={nodeRef}>
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<div className='emoji-mart-search'>
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<input type='search' value={searchValue} onChange={handleSearchChange} onKeyDown={handleSearchKeyDown} placeholder={intl.formatMessage(messages.search)} />
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<button type='button' className='emoji-mart-search-icon' disabled={!isSearching} aria-label={intl.formatMessage(messages.clear)} onClick={handleClear}><Icon icon={!isSearching ? SearchIcon : CancelIcon} /></button>
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</div>
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);
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};
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render () {
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const { intl } = this.props;
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const { searchValue } = this.state;
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const isSearching = searchValue !== '';
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const results = this.search();
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return (
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<div ref={this.setRef}>
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<div className='emoji-mart-search'>
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<input type='search' value={searchValue} onChange={this.handleSearchChange} onKeyDown={this.handleSearchKeyDown} placeholder={intl.formatMessage(messages.search)} />
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<button type='button' className='emoji-mart-search-icon' disabled={!isSearching} aria-label={intl.formatMessage(messages.clear)} onClick={this.handleClear}><Icon icon={!isSearching ? SearchIcon : CancelIcon} /></button>
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</div>
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<div className='language-dropdown__dropdown__results emoji-mart-scroll' role='listbox' ref={this.setListRef}>
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{results.map(this.renderItem)}
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</div>
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<div className='language-dropdown__dropdown__results emoji-mart-scroll' role='listbox' ref={listNodeRef}>
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{results.map((lang) => (
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<div key={lang[0]} role='option' tabIndex={0} data-index={lang[0]} className={classNames('language-dropdown__dropdown__results__item', { active: lang[0] === value })} aria-selected={lang[0] === value} onClick={handleClick} onKeyDown={handleKeyDown}>
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<span className='language-dropdown__dropdown__results__item__native-name' lang={lang[0]}>{lang[2]}</span> <span className='language-dropdown__dropdown__results__item__common-name'>({lang[1]})</span>
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</div>
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))}
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</div>
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);
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}
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</div>
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);
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};
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}
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const getFrequentlyUsedLanguages = createSelector([
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state => state.getIn(['settings', 'frequentlyUsedLanguages'], ImmutableMap()),
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], languageCounters => (
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languageCounters.keySeq()
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.sort((a, b) => languageCounters.get(a) - languageCounters.get(b))
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.reverse()
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.toArray()
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));
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LanguageDropdownMenu.propTypes = {
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value: PropTypes.string.isRequired,
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guess: PropTypes.string,
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onClose: PropTypes.func.isRequired,
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onChange: PropTypes.func.isRequired,
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languages: PropTypes.arrayOf(PropTypes.arrayOf(PropTypes.string)),
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intl: PropTypes.object,
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};
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export const LanguageDropdown = () => {
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const [open, setOpen] = useState(false);
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@ -263,7 +232,6 @@ export const LanguageDropdown = () => {
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const intl = useIntl();
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const dispatch = useAppDispatch();
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const frequentlyUsedLanguages = useAppSelector(getFrequentlyUsedLanguages);
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const value = useAppSelector((state) => state.compose.get('language'));
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const text = useAppSelector((state) => state.compose.get('text'));
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@ -319,10 +287,8 @@ export const LanguageDropdown = () => {
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<LanguageDropdownMenu
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value={value}
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guess={guess}
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frequentlyUsedLanguages={frequentlyUsedLanguages}
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onClose={handleClose}
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onChange={handleChange}
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intl={intl}
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/>
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</div>
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</div>
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