forked from off-topic/apps.apple.com
41 lines
1.3 KiB
TypeScript
41 lines
1.3 KiB
TypeScript
/**
|
|
* TODO: rdar://73010072 (Make localization utils its own package)
|
|
* Copied from:
|
|
* https://github.pie.apple.com/amp-ui/desktop-music-app/blob/main/app/utils/page-dir.js
|
|
*/
|
|
|
|
// these overrides were determined to always show page in RTL, even if the global elements dont contain
|
|
// an he_il entry
|
|
// <rdar://problem/49297213> LOC: IW-IL: RTL: Web Preview Pages: The Preview Pages are not RTL.
|
|
const RTL_LANG_CODES_OVERRIDE = [
|
|
'he', // hebrew
|
|
];
|
|
|
|
const RTL_LANG_CODES = [
|
|
'ar', // arabic
|
|
'he', // hebrew
|
|
'ku', // kurdish
|
|
'ur', // urdu
|
|
'ps', // pashto
|
|
'yi', // yiddish
|
|
];
|
|
|
|
/**
|
|
* Determine the page-direction for a given locale
|
|
*
|
|
* @param {String} localeCode - A string containing a language code and region code separated by a hyphen.
|
|
* @param {String|undefined|null} langParam - A language code passed from the `l=` query param.
|
|
*/
|
|
export function getPageDir(
|
|
localeCode: string,
|
|
langParam: string | undefined | null = null,
|
|
) {
|
|
const twoLettersLangCode = localeCode.split('-')[0];
|
|
const isRTLLang = RTL_LANG_CODES.includes(twoLettersLangCode);
|
|
const isRTLLangOverride =
|
|
typeof langParam === 'string' &&
|
|
RTL_LANG_CODES_OVERRIDE.includes(langParam);
|
|
|
|
return isRTLLang || isRTLLangOverride ? 'rtl' : 'ltr';
|
|
}
|