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32 lines
1.0 KiB
JavaScript
32 lines
1.0 KiB
JavaScript
;(() => {
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const supportedLangs = window.supportedLangs
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const cacheKey = 'preferred_lang'
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const defaultLang = 'en-US'
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const handleNavigatorLang = (navLang) => {
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const { language, region } = new Intl.Locale(navLang).maximize()
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return `${language}-${region}`
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}
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let userPreferredLang =
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localStorage.getItem(cacheKey) || handleNavigatorLang(navigator.language)
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const language = supportedLangs.includes(userPreferredLang)
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? userPreferredLang
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: defaultLang
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localStorage.setItem(cacheKey, language)
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userPreferredLang = language
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if (!location.pathname.startsWith(`/${userPreferredLang}`)) {
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const toPath = [`/${userPreferredLang}`]
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.concat(location.pathname.split('/').slice(2))
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.join('/')
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location.pathname =
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toPath.endsWith('.html') || toPath.endsWith('/')
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? toPath
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: toPath.concat('/')
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}
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if (navigator && navigator.serviceWorker.controller) {
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navigator.serviceWorker.controller.postMessage({
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type: 'LANG',
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lang: userPreferredLang,
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})
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}
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})()
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