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c61f1603f3
Fennec uses a different set of DTD and properties files. As such the current entity and property names do not work. To fix the tests a DTD and properties file gets added for the test_dialog.xul example dialog, which means that we have identical resources for every supported application. MozReview-Commit-ID: LXDeADHlxja --HG-- extra : rebase_source : 47a4023af8ebaef28ca58868529df5e78ea7b309
96 lines
2.9 KiB
JavaScript
96 lines
2.9 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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/**
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* An API which allows Marionette to handle localized content.
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*
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* The localization (https://mzl.la/2eUMjyF) of UI elements in Gecko based
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* applications is done via entities and properties. For static values entities
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* are used, which are located in .dtd files. Whereby for dynamically updated
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* content the values come from .property files. Both types of elements can be
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* identifed via a unique id, and the translated content retrieved.
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*/
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const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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XPCOMUtils.defineLazyServiceGetter(
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this, "domParser", "@mozilla.org/xmlextras/domparser;1", "nsIDOMParser");
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Cu.import("chrome://marionette/content/error.js");
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this.EXPORTED_SYMBOLS = ["l10n"];
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this.l10n = {};
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/**
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* Retrieve the localized string for the specified entity id.
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*
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* Example:
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* localizeEntity(["chrome://global/locale/about.dtd"], "about.version")
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*
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* @param {Array.<string>} urls
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* Array of .dtd URLs.
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* @param {string} id
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* The ID of the entity to retrieve the localized string for.
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*
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* @return {string}
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* The localized string for the requested entity.
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*/
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l10n.localizeEntity = function (urls, id) {
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// Build a string which contains all possible entity locations
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let locations = [];
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urls.forEach((url, index) => {
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locations.push(`<!ENTITY % dtd_${index} SYSTEM "${url}">%dtd_${index};`);
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})
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// Use the DOM parser to resolve the entity and extract its real value
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let header = `<?xml version="1.0"?><!DOCTYPE elem [${locations.join("")}]>`;
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let elem = `<elem id="elementID">&${id};</elem>`;
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let doc = domParser.parseFromString(header + elem, "text/xml");
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let element = doc.querySelector("elem[id='elementID']");
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if (element === null) {
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throw new NoSuchElementError(`Entity with id='${id}' hasn't been found`);
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}
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return element.textContent;
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};
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/**
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* Retrieve the localized string for the specified property id.
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*
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* Example:
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* localizeProperty(["chrome://global/locale/findbar.properties"], "FastFind")
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*
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* @param {Array.<string>} urls
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* Array of .properties URLs.
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* @param {string} id
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* The ID of the property to retrieve the localized string for.
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*
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* @return {string}
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* The localized string for the requested property.
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*/
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l10n.localizeProperty = function (urls, id) {
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let property = null;
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for (let url of urls) {
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let bundle = Services.strings.createBundle(url);
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try {
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property = bundle.GetStringFromName(id);
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break;
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} catch (e) {}
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};
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if (property === null) {
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throw new NoSuchElementError(`Property with id='${id}' hasn't been found`);
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}
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return property;
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};
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