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108 lines
3.6 KiB
108 lines
3.6 KiB
import {detectCurrentLang, makeT, setAnonymousLocale} from 'app/client/lib/localization';
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import {AppModel} from 'app/client/models/AppModel';
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import {hoverTooltip} from 'app/client/ui/tooltips';
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import {cssHoverCircle, cssTopBarBtn} from 'app/client/ui/TopBarCss';
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import {icon} from 'app/client/ui2018/icons';
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import {menu, menuItem} from 'app/client/ui2018/menus';
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import {getCountryCode} from 'app/common/Locales';
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import {getGristConfig} from 'app/common/urlUtils';
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import {dom, makeTestId, styled} from 'grainjs';
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const testId = makeTestId('test-language-');
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const t = makeT('LanguageMenu');
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export function buildLanguageMenu(appModel: AppModel) {
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// Get the list of languages from the config, or default to English.
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const languages = getGristConfig().supportedLngs ?? ['en'];
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// Get the current language (from user's preference, cookie or browser)
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const userLanguage = detectCurrentLang();
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if (appModel.currentValidUser) {
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// For logged in users, we don't need to show the menu (they have a preference in their profile).
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// But for tests we will show a hidden indicator.
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return dom('input', {type: 'hidden'}, (testId(`current-` + userLanguage)));
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}
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// When we switch language, we need to reload the page to get the new translations.
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// This button is only for anonymous users, so we don't need to save the preference or wait for anything.
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const changeLanguage = (lng: string) => {
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setAnonymousLocale(lng);
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window.location.reload();
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};
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// Try to convert locale setting to the emoji flag, fallback to plain flag icon.
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const emojiFlag = buildEmoji(userLanguage);
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return cssHoverCircle(
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// Margin is common for all hover buttons on TopBar.
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{style: `margin: 5px;`},
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// Flag or emoji flag if we have it.
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emojiFlag ?? cssTopBarBtn('Flag'),
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// Expose for test the current language use.
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testId(`current-` + userLanguage),
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menu(
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// Convert the list of languages we support to menu items.
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() => languages.map((lng) => menuItem(() => changeLanguage(lng), [
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// Try to convert the locale to nice name, fallback to locale itself.
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cssFirstUpper(translateLocale(lng) ?? lng),
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// If this is current language, mark it with a tick (by default we mark en).
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userLanguage === lng ? cssWrapper(icon('Tick'), testId('selected')) : null,
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testId(`lang-` + lng),
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])),
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{
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placement: 'bottom-end',
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}
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),
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hoverTooltip(t('Language'), {key: 'topBarBtnTooltip'}),
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testId('button'),
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);
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}
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// Unfortunately, Windows doesn't support emoji flags, so we need to use SVG icons.
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function buildEmoji(locale: string) {
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const countryCode = getCountryCode(locale);
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if (!countryCode) { return null; }
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return [
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cssSvgIcon({
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style: `background-image: url("icons/locales/${countryCode}.svg")`
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}),
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dom.cls(cssSvgIconWrapper.className)
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];
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}
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export function translateLocale(locale: string) {
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try {
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locale = locale.replace("_", "-");
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// This API might not be available in all browsers.
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const languageNames = new Intl.DisplayNames([locale], {type: 'language'});
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return languageNames.of(locale) || null;
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} catch (err) {
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return null;
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}
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}
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const cssWrapper = styled('div', `
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margin-left: auto;
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display: inline-block;
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`);
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const cssSvgIconWrapper = styled('div', `
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display: grid;
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place-content: center;
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cursor: pointer;
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user-select: none;
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`);
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const cssSvgIcon = styled('div', `
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width: 16px;
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height: 16px;
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background-repeat: no-repeat;
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background-position: center;
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background-color: transparent;
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background-size: contain;
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`);
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const cssFirstUpper = styled('span', `
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&::first-letter {
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text-transform: capitalize;
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}
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`);
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