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import {useCallback, useMemo} from 'react'
import {Keyboard, StyleSheet} from 'react-native'
import {
FontAwesomeIcon,
FontAwesomeIconStyle,
} from '@fortawesome/react-native-fontawesome'
import {msg} from '@lingui/macro'
import {useLingui} from '@lingui/react'
import {LANG_DROPDOWN_HITSLOP} from '#/lib/constants'
import {usePalette} from '#/lib/hooks/usePalette'
import {isNative} from '#/platform/detection'
import {useModalControls} from '#/state/modals'
import {
hasPostLanguage,
toPostLanguages,
useLanguagePrefs,
useLanguagePrefsApi,
} from '#/state/preferences/languages'
import {
DropdownButton,
DropdownItem,
DropdownItemButton,
} from '#/view/com/util/forms/DropdownButton'
import {Text} from '#/view/com/util/text/Text'
import {codeToLanguageName} from '../../../../locale/helpers'
export function SelectLangBtn() {
const pal = usePalette('default')
const {_} = useLingui()
const {openModal} = useModalControls()
const langPrefs = useLanguagePrefs()
const setLangPrefs = useLanguagePrefsApi()
const onPressMore = useCallback(async () => {
if (isNative) {
if (Keyboard.isVisible()) {
Keyboard.dismiss()
}
}
openModal({name: 'post-languages-settings'})
}, [openModal])
const postLanguagesPref = toPostLanguages(langPrefs.postLanguage)
const items: DropdownItem[] = useMemo(() => {
let arr: DropdownItemButton[] = []
function add(commaSeparatedLangCodes: string) {
const langCodes = commaSeparatedLangCodes.split(',')
const langName = langCodes
.map(code => codeToLanguageName(code, langPrefs.appLanguage))
.join(' + ')
/*
* Filter out any duplicates
*/
if (arr.find((item: DropdownItemButton) => item.label === langName)) {
return
}
arr.push({
icon:
langCodes.every(code =>
hasPostLanguage(langPrefs.postLanguage, code),
) && langCodes.length === postLanguagesPref.length
? ['fas', 'circle-dot']
: ['far', 'circle'],
label: langName,
onPress() {
setLangPrefs.setPostLanguage(commaSeparatedLangCodes)
},
})
}
if (postLanguagesPref.length) {
/*
* Re-join here after sanitization bc postLanguageHistory is an array of
* comma-separated strings too
*/
add(langPrefs.postLanguage)
}
// comma-separted strings of lang codes that have been used in the past
for (const lang of langPrefs.postLanguageHistory) {
add(lang)
}
return [
{heading: true, label: _(msg`Post language`)},
...arr.slice(0, 6),
{sep: true},
{
label: _(msg`Other...`),
onPress: onPressMore,
},
]
}, [onPressMore, langPrefs, setLangPrefs, postLanguagesPref, _])
return (
<DropdownButton
type="bare"
testID="selectLangBtn"
items={items}
openUpwards
style={styles.button}
hitSlop={LANG_DROPDOWN_HITSLOP}
accessibilityLabel={_(msg`Language selection`)}
accessibilityHint="">
{postLanguagesPref.length > 0 ? (
<Text type="lg-bold" style={[pal.link, styles.label]} numberOfLines={1}>
{postLanguagesPref
.map(lang => codeToLanguageName(lang, langPrefs.appLanguage))
.join(', ')}
</Text>
) : (
<FontAwesomeIcon
icon="language"
style={pal.link as FontAwesomeIconStyle}
size={26}
/>
)}
</DropdownButton>
)
}
const styles = StyleSheet.create({
button: {
marginHorizontal: 15,
},
label: {
maxWidth: 100,
},
})
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