gecko-dev/browser/modules/AboutHomeUtils.jsm

46 строки
1.5 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
this.EXPORTED_SYMBOLS = [ "AboutHomeUtils" ];
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
Components.utils.import("resource://gre/modules/Services.jsm");
// Url to fetch snippets, in the urlFormatter service format.
const SNIPPETS_URL_PREF = "browser.aboutHomeSnippets.updateUrl";
// Should be bumped up if the snippets content format changes.
const STARTPAGE_VERSION = 3;
this.AboutHomeUtils = new Object();
/**
* Returns an object containing the name and searchURL of the original default
* search engine.
*/
XPCOMUtils.defineLazyGetter(AboutHomeUtils, "defaultSearchEngine", function() {
let defaultEngine = Services.search.originalDefaultEngine;
let submission = defaultEngine.getSubmission("_searchTerms_", null, "homepage");
if (submission.postData) {
throw new Error("Home page does not support POST search engines.");
}
return Object.freeze({
name: defaultEngine.name,
searchURL: submission.uri.spec
});
});
/**
* Returns the URL to fetch snippets from, in the urlFormatter service format.
*/
XPCOMUtils.defineLazyGetter(AboutHomeUtils, "snippetsURL", function() {
let updateURL = Services.prefs
.getCharPref(SNIPPETS_URL_PREF)
.replace("%STARTPAGE_VERSION%", STARTPAGE_VERSION);
return Services.urlFormatter.formatURL(updateURL);
});