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Handle alternate locale names, long locale names #67

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Handle alternate locale names, long locale names #67

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2e85685
use synonyms to accept zh-HK
mapmeld Jul 26, 2025
5c1f5d9
include HK example
mapmeld Jul 26, 2025
a9b8f5e
rename ALT_LOCALES
mapmeld Jul 26, 2025
055f411
use recursion to reduce long locales by piece
mapmeld Jul 26, 2025
64fd04c
add locales, change recursive calls to a while loop
mapmeld Aug 5, 2025
930ae1b
add tests
mapmeld Aug 5, 2025
1664478
remove change to browserLanguagefn
mapmeld Aug 7, 2025
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use synonyms to accept zh-HK
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@mapmeld
mapmeld committed Jul 26, 2025
commit 2e856859fe20b9ef37c540a3d43059a019797828
18 changes: 16 additions & 2 deletions index.js
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Original file line number Diff line number Diff line change
@@ -1,3 +1,13 @@
/* accept values from common locale selectors */
const SYNONYMS = {
'zh-CN': 'zh-Hans',
'zh-Hans-CN': 'zh-Hans',
'zh-HK': 'zh-Hant',
'zh-Hant-HK': 'zh-Hant',
'zh-TW': 'zh-Hant',
'zh-Hant-TW': 'zh-Hant',
};

/**
* Create a new [Mapbox GL JS plugin](https://www.mapbox.com/blog/build-mapbox-gl-js-plugins/) that
* modifies the layers of the map style to use the `text-field` that matches the browser language.
Expand Down Expand Up @@ -115,7 +125,10 @@ function findStreetsSource(style) {
* @returns {object} the modified style
*/
MapboxLanguage.prototype.setLanguage = function (style, language) {
if (this.supportedLanguages.indexOf(language) < 0) throw new Error(`Language ${ language } is not supported`);
language = SYNONYMS[language] || language;
if (this.supportedLanguages.indexOf(language) < 0) {
throw new Error(`Language ${ language } is not supported`);
}
const streetsSource = this._languageSource || findStreetsSource(style);
if (!streetsSource) return style;

Expand All @@ -142,7 +155,8 @@ MapboxLanguage.prototype._initialStyleUpdate = function () {
};

function browserLanguage(supportedLanguages) {
const language = navigator.languages ? navigator.languages[0] : (navigator.language || navigator.userLanguage);
let language = navigator.languages ? navigator.languages[0] : (navigator.language || navigator.userLanguage);
language = SYNONYMS[language] || language;
const parts = language && language.split('-');
let languageCode = language;
if (parts.length > 1) {
Expand Down