pdf.js/web/genericl10n.js
Jonas Jenwald 29fd39a16e [GENERIC viewer] Try to fixup "incomplete" language codes (issue 13689)
While I don't know if it's technically correct to even do this, it could provide a slightly better out-of-the-box behaviour in browsers that specify (from the PDF.js `l10n`-folder perspective) "incomplete" language codes.

Rather than immediately falling back to English, we'll use a white-list to try and re-write a "partial" language code to a (hopefully) suitable one that matches an existing `l10n`-folder. The disadvantage of this solution is that the list needs to be kept *manually* up-to-date with any changes in the `l10n`-folder, however new locales are added infrequently enough that this should be acceptable.

Fixes 13689 (assuming we actually want/care to do so, otherwise we should just WONTFIX the issue).
2021-07-08 12:54:58 +02:00

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1.4 KiB
JavaScript

/* Copyright 2017 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import "../external/webL10n/l10n.js";
import { fixupLangCode, getL10nFallback } from "./l10n_utils.js";
const webL10n = document.webL10n;
class GenericL10n {
constructor(lang) {
this._lang = lang;
this._ready = new Promise((resolve, reject) => {
webL10n.setLanguage(fixupLangCode(lang), () => {
resolve(webL10n);
});
});
}
async getLanguage() {
const l10n = await this._ready;
return l10n.getLanguage();
}
async getDirection() {
const l10n = await this._ready;
return l10n.getDirection();
}
async get(key, args = null, fallback = getL10nFallback(key, args)) {
const l10n = await this._ready;
return l10n.get(key, args, fallback);
}
async translate(element) {
const l10n = await this._ready;
return l10n.translate(element);
}
}
export { GenericL10n };