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import { useCallback, useEffect, useMemo, useRef } from 'react';
import styled from 'styled-components';
import { useAppContext } from '../../renderer/context';
import { messages } from '../../shared/gettext';
import { useHistory } from '../lib/history';
import { useSelector } from '../redux/store';
import { AriaInputGroup } from './AriaGroup';
import Selector, { SelectorItem } from './cell/Selector';
import { CustomScrollbarsRef } from './CustomScrollbars';
import { BackAction } from './KeyboardNavigation';
import { Layout, SettingsContainer } from './Layout';
import {
NavigationBar,
NavigationContainer,
NavigationItems,
NavigationScrollbars,
TitleBarItem,
} from './NavigationBar';
import SettingsHeader, { HeaderTitle } from './SettingsHeader';
const StyledSelector = styled(Selector)({
marginBottom: 0,
});
export default function SelectLanguage() {
const history = useHistory();
const { preferredLocale, preferredLocalesList, setPreferredLocale } = usePreferredLocale();
const scrollView = useRef<CustomScrollbarsRef>(null);
const selectedCellRef = useRef<HTMLButtonElement>(null);
const selectLocale = useCallback(
async (locale: string) => {
await setPreferredLocale(locale);
history.pop();
},
[history.pop],
);
const scrollToSelectedCell = () => {
const ref = selectedCellRef.current;
const view = scrollView.current;
if (view && ref) {
if (ref instanceof HTMLElement) {
view.scrollToElement(ref, 'middle');
}
}
};
useEffect(() => {
scrollToSelectedCell();
}, []);
return (
<BackAction action={history.pop}>
<Layout>
<SettingsContainer>
<NavigationContainer>
<NavigationBar>
<NavigationItems>
<TitleBarItem>
{
// TRANSLATORS: Title label in navigation bar
messages.pgettext('select-language-nav', 'Select language')
}
</TitleBarItem>
</NavigationItems>
</NavigationBar>
<NavigationScrollbars ref={scrollView}>
<SettingsHeader>
<HeaderTitle>
{messages.pgettext('select-language-nav', 'Select language')}
</HeaderTitle>
</SettingsHeader>
<AriaInputGroup>
<StyledSelector
title=""
value={preferredLocale}
items={preferredLocalesList}
onSelect={selectLocale}
selectedCellRef={selectedCellRef}
/>
</AriaInputGroup>
</NavigationScrollbars>
</NavigationContainer>
</SettingsContainer>
</Layout>
</BackAction>
);
}
function usePreferredLocale() {
const preferredLocale = useSelector((state) => state.settings.guiSettings.preferredLocale);
const { getPreferredLocaleList, setPreferredLocale } = useAppContext();
const preferredLocalesList: SelectorItem<string>[] = useMemo(() => {
return [...getPreferredLocaleList().map(({ name, code }) => ({ label: name, value: code }))];
}, []);
return { preferredLocale, preferredLocalesList, setPreferredLocale };
}
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