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Fallback to main language (xx) when sub-language (xx-yy) is not supported. (#682)

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## Issue
656 Automatic language detection can't recognize de-DE as de

## Note
We do fallback to the main language, but seems like the code got lost ... not sure when, but probably during the CN/TW or PT-BR support. The refactor in  81e47300 still did that, but the refactor was reverted due to some compilation issue (should revisit that someday).

## Change
Put back equivalent code.
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infinite-persistence 2022-01-12 06:46:57 -08:00 committed by GitHub
parent 1f596e963d
commit 3d246a30ba
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1 changed files with 15 additions and 1 deletions
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16
ui/util/default-languages.js
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@ -4,7 +4,21 @@ const DEFAULT_LANG = 'en';
export const getDefaultLanguage = () => { export const getDefaultLanguage = () => {
const browserLanguage = window.navigator.language; const browserLanguage = window.navigator.language;
return SUPPORTED_BROWSER_LANGUAGES[browserLanguage] || DEFAULT_LANG;
if (SUPPORTED_BROWSER_LANGUAGES[browserLanguage]) {
return SUPPORTED_BROWSER_LANGUAGES[browserLanguage];
}
if (browserLanguage.includes('-')) {
// Perhaps it is a sub-lang that we are currently not supporting.
// See if we support the main one.
const mainLang = browserLanguage.substring(0, browserLanguage.indexOf('-'));
if (SUPPORTED_BROWSER_LANGUAGES[mainLang]) {
return SUPPORTED_BROWSER_LANGUAGES[mainLang];
}
}
return DEFAULT_LANG;
}; };
// If homepages has a key "zh-Hant" return that, otherwise return "zh", otherwise "en" // If homepages has a key "zh-Hant" return that, otherwise return "zh", otherwise "en"