return getBestLocale(rootURI).then(function (bestMatchingLocale) {
// It may be null if the addon doesn't have any locale file
if (!bestMatchingLocale)
return resolve(null);
let localeURI = rootURI + "locale/" + bestMatchingLocale + ".json";
// Locale files only contains one big JSON object that is used as
// an hashtable of: "key to translate" => "translated key"
// TODO: We are likely to change this in order to be able to overload
// a specific key translation. For a specific package, module or line?
return parseJsonURI(localeURI).then(function (json) {
return {
hash: json,
bestMatchingLocale: bestMatchingLocale
};
});
});
request.onload = function () {
resolve(request.responseText);
}