Refactor `<LanguageDropdown>` into TypeScript (#33723)
This commit is contained in:
Eugen Rochko
GitHub
parent
2df86d6413
commit
52a5c8ae05
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@ -1,299 +0,0 @@
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import PropTypes from 'prop-types';
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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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import classNames from 'classnames';
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import { createSelector } from '@reduxjs/toolkit';
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import { Map as ImmutableMap } from 'immutable';
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import { supportsPassiveEvents } from 'detect-passive-events';
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import fuzzysort from 'fuzzysort';
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import Overlay from 'react-overlays/Overlay';
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import CancelIcon from '@/material-icons/400-24px/cancel-fill.svg?react';
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import SearchIcon from '@/material-icons/400-24px/search.svg?react';
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import TranslateIcon from '@/material-icons/400-24px/translate.svg?react';
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import { changeComposeLanguage } from 'mastodon/actions/compose';
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import { Icon } from 'mastodon/components/icon';
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import { languages as preloadedLanguages } from 'mastodon/initial_state';
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import { useAppSelector, useAppDispatch } from 'mastodon/store';
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import { debouncedGuess } from '../util/language_detection';
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const messages = defineMessages({
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changeLanguage: { id: 'compose.language.change', defaultMessage: 'Change language' },
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search: { id: 'compose.language.search', defaultMessage: 'Search languages...' },
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clear: { id: 'emoji_button.clear', defaultMessage: 'Clear' },
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});
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const listenerOptions = supportsPassiveEvents ? { passive: true, capture: true } : true;
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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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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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const frequentlyUsedLanguages = useAppSelector(getFrequentlyUsedLanguages);
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const handleSearchChange = useCallback(({ target }) => {
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setSearchValue(target.value);
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}, [setSearchValue]);
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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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}, [onClose, handleClick]);
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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 (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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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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if (guess && a[0] === guess) { // Push guessed language higher than current selection
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return -1;
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} else if (guess && b[0] === guess) {
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return 1;
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} else if (a[0] === value) { // Push current selection to the top of the list
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return -1;
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} else if (b[0] === value) {
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return 1;
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} else {
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// Sort according to frequently used languages
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const indexOfA = frequentlyUsedLanguages.indexOf(a[0]);
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const indexOfB = frequentlyUsedLanguages.indexOf(b[0]);
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return ((indexOfA > -1 ? indexOfA : Infinity) - (indexOfB > -1 ? indexOfB : Infinity));
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}
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});
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}
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return fuzzysort.go(searchValue, languages, {
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keys: ['0', '1', '2'],
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limit: 5,
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threshold: -10000,
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}).map(result => result.obj);
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}, [searchValue, languages, guess, frequentlyUsedLanguages, value]);
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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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<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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</div>
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);
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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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const [placement, setPlacement] = useState('bottom');
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const [guess, setGuess] = useState('');
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const activeElementRef = useRef(null);
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const targetRef = useRef(null);
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const intl = useIntl();
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const dispatch = useAppDispatch();
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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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const current = preloadedLanguages.find(lang => lang[0] === value) ?? [];
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const handleToggle = useCallback(() => {
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if (open && activeElementRef.current)
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activeElementRef.current.focus({ preventScroll: true });
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setOpen(!open);
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}, [open, setOpen]);
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const handleClose = useCallback(() => {
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if (open && activeElementRef.current)
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activeElementRef.current.focus({ preventScroll: true });
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setOpen(false);
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}, [open, setOpen]);
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const handleChange = useCallback((value) => {
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dispatch(changeComposeLanguage(value));
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}, [dispatch]);
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const handleOverlayEnter = useCallback(({ placement }) => {
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setPlacement(placement);
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}, [setPlacement]);
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useEffect(() => {
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if (text.length > 20) {
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debouncedGuess(text, setGuess);
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} else {
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setGuess('');
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}
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}, [text, setGuess]);
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return (
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<div ref={targetRef}>
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<button
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type='button'
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title={intl.formatMessage(messages.changeLanguage)}
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aria-expanded={open}
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onClick={handleToggle}
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className={classNames('dropdown-button', { active: open, warning: guess !== '' && guess !== value })}
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>
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<Icon icon={TranslateIcon} />
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<span className='dropdown-button__label'>{current[2] ?? value}</span>
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</button>
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<Overlay show={open} offset={[5, 5]} placement={placement} flip target={targetRef} popperConfig={{ strategy: 'fixed', onFirstUpdate: handleOverlayEnter }}>
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{({ props, placement }) => (
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<div {...props}>
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<div className={`dropdown-animation language-dropdown__dropdown ${placement}`} >
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<LanguageDropdownMenu
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value={value}
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guess={guess}
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onClose={handleClose}
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onChange={handleChange}
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/>
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</div>
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</div>
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)}
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</Overlay>
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</div>
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);
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};
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@ -0,0 +1,427 @@
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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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import classNames from 'classnames';
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import { createSelector } from '@reduxjs/toolkit';
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import { Map as ImmutableMap } from 'immutable';
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import fuzzysort from 'fuzzysort';
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import Overlay from 'react-overlays/Overlay';
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import type { State, Placement } from 'react-overlays/usePopper';
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import CancelIcon from '@/material-icons/400-24px/cancel-fill.svg?react';
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import SearchIcon from '@/material-icons/400-24px/search.svg?react';
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import TranslateIcon from '@/material-icons/400-24px/translate.svg?react';
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import { changeComposeLanguage } from 'mastodon/actions/compose';
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import { Icon } from 'mastodon/components/icon';
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import { languages as preloadedLanguages } from 'mastodon/initial_state';
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import type { RootState } from 'mastodon/store';
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import { useAppSelector, useAppDispatch } from 'mastodon/store';
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import { debouncedGuess } from '../util/language_detection';
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const messages = defineMessages({
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changeLanguage: {
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id: 'compose.language.change',
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defaultMessage: 'Change language',
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},
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search: {
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id: 'compose.language.search',
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defaultMessage: 'Search languages...',
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},
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clear: { id: 'emoji_button.clear', defaultMessage: 'Clear' },
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});
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type Language = [string, string, string];
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const getFrequentlyUsedLanguages = createSelector(
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[
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(state: RootState) =>
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(state.settings as ImmutableMap<string, unknown>).get(
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'frequentlyUsedLanguages',
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ImmutableMap(),
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) as ImmutableMap<string, number>,
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],
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(languageCounters) =>
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languageCounters
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.keySeq()
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.sort(
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(a, b) =>
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(languageCounters.get(a) ?? 0) - (languageCounters.get(b) ?? 0),
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)
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.reverse()
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.toArray(),
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);
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const LanguageDropdownMenu: React.FC<{
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value: string;
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guess?: string;
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onClose: () => void;
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onChange: (arg0: string) => void;
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}> = ({ value, guess, onClose, onChange }) => {
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const languages = preloadedLanguages as Language[];
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const intl = useIntl();
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const [searchValue, setSearchValue] = useState('');
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const nodeRef = useRef<HTMLDivElement>(null);
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const listNodeRef = useRef<HTMLDivElement>(null);
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const frequentlyUsedLanguages = useAppSelector(getFrequentlyUsedLanguages);
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const handleSearchChange = useCallback(
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({ target }: React.ChangeEvent<HTMLInputElement>) => {
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setSearchValue(target.value);
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},
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[setSearchValue],
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);
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const handleClick = useCallback(
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(e: React.MouseEvent | React.KeyboardEvent) => {
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const value = e.currentTarget.getAttribute('data-index');
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if (!value) {
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return;
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}
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e.preventDefault();
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onClose();
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onChange(value);
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},
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[onClose, onChange],
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);
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const handleKeyDown = useCallback(
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(e: React.KeyboardEvent) => {
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if (!listNodeRef.current) {
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return;
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}
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const index = Array.from(listNodeRef.current.childNodes).findIndex(
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(node) => node === e.currentTarget,
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);
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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 =
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listNodeRef.current.childNodes[index + 1] ??
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listNodeRef.current.firstChild;
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break;
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case 'ArrowUp':
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element =
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listNodeRef.current.childNodes[index - 1] ??
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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 =
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listNodeRef.current.childNodes[index - 1] ??
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listNodeRef.current.lastChild;
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} else {
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element =
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listNodeRef.current.childNodes[index + 1] ??
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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 && element instanceof HTMLElement) {
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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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);
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const handleSearchKeyDown = useCallback(
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(e: React.KeyboardEvent) => {
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let element = null;
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if (!listNodeRef.current) {
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return;
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}
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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 && element instanceof HTMLElement) {
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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 && element instanceof HTMLElement) {
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const value = element.getAttribute('data-index');
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if (value) {
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onChange(value);
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onClose();
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}
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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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setSearchValue('');
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}
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break;
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}
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},
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[setSearchValue, onChange, onClose, searchValue],
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);
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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: MouseEvent) => {
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if (
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nodeRef.current &&
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e.target instanceof HTMLElement &&
|
||||
!nodeRef.current.contains(e.target)
|
||||
) {
|
||||
onClose();
|
||||
e.stopPropagation();
|
||||
}
|
||||
};
|
||||
|
||||
document.addEventListener('click', handleDocumentClick, { capture: true });
|
||||
|
||||
// Because of https://github.com/react-bootstrap/react-bootstrap/issues/2614 we need
|
||||
// to wait for a frame before focusing
|
||||
requestAnimationFrame(() => {
|
||||
if (nodeRef.current) {
|
||||
const element = nodeRef.current.querySelector<HTMLInputElement>(
|
||||
'input[type="search"]',
|
||||
);
|
||||
if (element) element.focus();
|
||||
}
|
||||
});
|
||||
|
||||
return () => {
|
||||
document.removeEventListener('click', handleDocumentClick);
|
||||
};
|
||||
}, [onClose]);
|
||||
|
||||
const results = useMemo(() => {
|
||||
if (searchValue === '') {
|
||||
return [...languages].sort((a, b) => {
|
||||
if (guess && a[0] === guess) {
|
||||
// Push guessed language higher than current selection
|
||||
return -1;
|
||||
} else if (guess && b[0] === guess) {
|
||||
return 1;
|
||||
} else if (a[0] === value) {
|
||||
// Push current selection to the top of the list
|
||||
return -1;
|
||||
} else if (b[0] === value) {
|
||||
return 1;
|
||||
} else {
|
||||
// Sort according to frequently used languages
|
||||
|
||||
const indexOfA = frequentlyUsedLanguages.indexOf(a[0]);
|
||||
const indexOfB = frequentlyUsedLanguages.indexOf(b[0]);
|
||||
|
||||
return (
|
||||
(indexOfA > -1 ? indexOfA : Infinity) -
|
||||
(indexOfB > -1 ? indexOfB : Infinity)
|
||||
);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
return fuzzysort
|
||||
.go(searchValue, languages, {
|
||||
keys: ['0', '1', '2'],
|
||||
limit: 5,
|
||||
threshold: -10000,
|
||||
})
|
||||
.map((result) => result.obj);
|
||||
}, [searchValue, languages, guess, frequentlyUsedLanguages, value]);
|
||||
|
||||
return (
|
||||
<div ref={nodeRef}>
|
||||
<div className='emoji-mart-search'>
|
||||
<input
|
||||
type='search'
|
||||
value={searchValue}
|
||||
onChange={handleSearchChange}
|
||||
onKeyDown={handleSearchKeyDown}
|
||||
placeholder={intl.formatMessage(messages.search)}
|
||||
/>
|
||||
<button
|
||||
type='button'
|
||||
className='emoji-mart-search-icon'
|
||||
disabled={!isSearching}
|
||||
aria-label={intl.formatMessage(messages.clear)}
|
||||
onClick={handleClear}
|
||||
>
|
||||
<Icon id='' icon={!isSearching ? SearchIcon : CancelIcon} />
|
||||
</button>
|
||||
</div>
|
||||
|
||||
<div
|
||||
className='language-dropdown__dropdown__results emoji-mart-scroll'
|
||||
role='listbox'
|
||||
ref={listNodeRef}
|
||||
>
|
||||
{results.map((lang) => (
|
||||
<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}
|
||||
>
|
||||
<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>
|
||||
</div>
|
||||
))}
|
||||
</div>
|
||||
</div>
|
||||
);
|
||||
};
|
||||
|
||||
export const LanguageDropdown: React.FC = () => {
|
||||
const [open, setOpen] = useState(false);
|
||||
const [placement, setPlacement] = useState<Placement | undefined>('bottom');
|
||||
const [guess, setGuess] = useState('');
|
||||
const activeElementRef = useRef<HTMLElement | null>(null);
|
||||
const targetRef = useRef(null);
|
||||
|
||||
const intl = useIntl();
|
||||
|
||||
const dispatch = useAppDispatch();
|
||||
const value = useAppSelector(
|
||||
(state) => state.compose.get('language') as string,
|
||||
);
|
||||
const text = useAppSelector((state) => state.compose.get('text') as string);
|
||||
|
||||
const current =
|
||||
(preloadedLanguages as Language[]).find((lang) => lang[0] === value) ?? [];
|
||||
|
||||
const handleMouseDown = useCallback(() => {
|
||||
if (!open && document.activeElement instanceof HTMLElement) {
|
||||
activeElementRef.current = document.activeElement;
|
||||
}
|
||||
}, [open]);
|
||||
|
||||
const handleToggle = useCallback(() => {
|
||||
if (open && activeElementRef.current)
|
||||
activeElementRef.current.focus({ preventScroll: true });
|
||||
|
||||
setOpen(!open);
|
||||
}, [open, setOpen]);
|
||||
|
||||
const handleClose = useCallback(() => {
|
||||
if (open && activeElementRef.current)
|
||||
activeElementRef.current.focus({ preventScroll: true });
|
||||
|
||||
setOpen(false);
|
||||
}, [open, setOpen]);
|
||||
|
||||
const handleChange = useCallback(
|
||||
(value: string) => {
|
||||
dispatch(changeComposeLanguage(value));
|
||||
},
|
||||
[dispatch],
|
||||
);
|
||||
|
||||
const handleOverlayEnter = useCallback(
|
||||
(state: Partial<State>) => {
|
||||
setPlacement(state.placement);
|
||||
},
|
||||
[setPlacement],
|
||||
);
|
||||
|
||||
useEffect(() => {
|
||||
if (text.length > 20) {
|
||||
debouncedGuess(text, setGuess);
|
||||
} else {
|
||||
setGuess('');
|
||||
}
|
||||
}, [text, setGuess]);
|
||||
|
||||
return (
|
||||
<div ref={targetRef}>
|
||||
<button
|
||||
type='button'
|
||||
title={intl.formatMessage(messages.changeLanguage)}
|
||||
aria-expanded={open}
|
||||
onClick={handleToggle}
|
||||
onMouseDown={handleMouseDown}
|
||||
className={classNames('dropdown-button', {
|
||||
active: open,
|
||||
warning: guess !== '' && guess !== value,
|
||||
})}
|
||||
>
|
||||
<Icon id='' icon={TranslateIcon} />
|
||||
<span className='dropdown-button__label'>{current[2] ?? value}</span>
|
||||
</button>
|
||||
|
||||
<Overlay
|
||||
show={open}
|
||||
offset={[5, 5]}
|
||||
placement={placement}
|
||||
flip
|
||||
target={targetRef}
|
||||
popperConfig={{ strategy: 'fixed', onFirstUpdate: handleOverlayEnter }}
|
||||
>
|
||||
{({ props, placement }) => (
|
||||
<div {...props}>
|
||||
<div
|
||||
className={`dropdown-animation language-dropdown__dropdown ${placement}`}
|
||||
>
|
||||
<LanguageDropdownMenu
|
||||
value={value}
|
||||
guess={guess}
|
||||
onClose={handleClose}
|
||||
onChange={handleChange}
|
||||
/>
|
||||
</div>
|
||||
</div>
|
||||
)}
|
||||
</Overlay>
|
||||
</div>
|
||||
);
|
||||
};
|
||||
Loading…
Reference in New Issue