17af706070
This patch changes almost all viewer-components[1] to use "data-l10n-id"/"data-l10n-args" for localization, which means that in many cases we no longer need to pass around the `L10n`-instance any more. One part of the code-base where the `L10n`-instance is still being used "directly" is the AnnotationEditors, however while it might be possible to convert (most of) that code as well that's not attempted in this patch. --- [1] The one exception is the `PDFDocumentProperties` dialog, since the way it's currently implemented makes that less straightforward to fix without a lot of code changes.
80 lines
2.1 KiB
JavaScript
80 lines
2.1 KiB
JavaScript
/* Copyright 2021 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/** @typedef {import("./interfaces").IL10n} IL10n */
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import { FluentBundle, FluentResource } from "fluent-bundle";
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import { DOMLocalization } from "fluent-dom";
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import { L10n } from "./l10n.js";
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import { shadow } from "pdfjs-lib";
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/**
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* @implements {IL10n}
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*/
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class ConstL10n extends L10n {
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constructor(lang) {
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super({ lang });
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this.setL10n(
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new DOMLocalization([], ConstL10n.#generateBundles.bind(ConstL10n, lang))
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);
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}
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static async *#generateBundles(lang) {
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let text;
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if (typeof PDFJSDev === "undefined") {
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const url = new URL(`./locale/${lang}/viewer.ftl`, window.location.href);
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const data = await fetch(url);
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text = await data.text();
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} else {
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text = PDFJSDev.eval("DEFAULT_FTL");
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}
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const resource = new FluentResource(text);
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const bundle = new FluentBundle(lang);
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const errors = bundle.addResource(resource);
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if (errors.length) {
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console.error("L10n errors", errors);
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}
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yield bundle;
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}
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static get instance() {
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return shadow(this, "instance", new ConstL10n("en-US"));
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}
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}
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/**
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* No-op implementation of the localization service.
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* @implements {IL10n}
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*/
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const NullL10n = {
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getLanguage() {
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return ConstL10n.instance.getLanguage();
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},
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getDirection() {
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return ConstL10n.instance.getDirection();
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},
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async get(ids, args = null, fallback) {
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return ConstL10n.instance.get(ids, args, fallback);
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},
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async translate(element) {
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return ConstL10n.instance.translate(element);
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},
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};
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export { NullL10n };
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