Ghost/core/frontend/services/theme-engine/i18n/i18n.js

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const errors = require('@tryghost/errors');
const i18n = require('../../../../shared/i18n');
class ThemeI18n extends i18n.I18n {
/**
* @param {objec} [options]
* @param {string} basePath - the base path for the translation directory (e.g. where themes live)
* @param {string} [locale] - a locale string
*/
constructor(options = {}) {
super(options);
// We don't care what gets passed in, themes use fulltext mode
this._stringMode = 'fulltext';
}
/**
* Setup i18n support for themes:
* - Load correct language file into memory
*
* @param {object} options
* @param {String} options.activeTheme - name of the currently loaded theme
* @param {String} options.locale - name of the currently loaded locale
*
*/
init({activeTheme, locale} = {}) {
// This function is called during theme initialization, and when switching language or theme.
this._locale = locale || this._locale;
this._activetheme = activeTheme || this._activetheme;
super.init();
}
_translationFileDirs() {
return [this.basePath, this._activetheme, 'locales'];
}
_handleUninitialisedError(key) {
throw new errors.IncorrectUsageError({message: `Theme translation was used before it was initialised with key ${key}`});
}
_handleFallbackToDefault() {
this._logging.warn(`Theme translations falling back to locales/${this.defaultLocale()}.json.`);
}
_handleMissingFileError(locale) {
if (locale !== this.defaultLocale()) {
this._logging.warn(`Theme translations file locales/${locale}.json not found.`);
}
}
_handleInvalidFileError(locale, err) {
this._logging.error(new errors.IncorrectUsageError({
err,
message: `Theme translations unable to parse locales/${locale}.json. Please check that it is valid JSON.`
}));
}
_handleEmptyKeyError() {
this._logging.warn('Theme translations {{t}} helper called without a translation key.');
}
_handleMissingKeyError() {
// This case cannot be reached in themes as we use the key as the fallback
}
_handleInvalidKeyError(key, err) {
throw new errors.IncorrectUsageError({
err,
message: `Theme translations {{t}} helper called with an invalid translation key: ${key}`
});
}
}
module.exports = ThemeI18n;