fune/toolkit/components/processsingleton/MainProcessSingleton.jsm

87 lines
3.6 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";
const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
ChromeUtils.defineModuleGetter(this, "NetUtil",
"resource://gre/modules/NetUtil.jsm");
function MainProcessSingleton() {}
MainProcessSingleton.prototype = {
classID: Components.ID("{0636a680-45cb-11e4-916c-0800200c9a66}"),
QueryInterface: ChromeUtils.generateQI([Ci.nsIObserver,
Ci.nsISupportsWeakReference]),
// Called when a webpage calls window.external.AddSearchProvider
addSearchEngine({ target: browser, data: { pageURL, engineURL } }) {
pageURL = NetUtil.newURI(pageURL);
engineURL = NetUtil.newURI(engineURL, null, pageURL);
let iconURL;
if (browser.mIconURL && browser.mIconURL.startsWith("data:"))
iconURL = NetUtil.newURI(browser.mIconURL);
try {
// Make sure the URLs are HTTP, HTTPS, or FTP.
let isWeb = ["https", "http", "ftp"];
if (!isWeb.includes(engineURL.scheme))
throw new Error("Unsupported search engine URL: " + engineURL.spec);
if (Services.policies &&
!Services.policies.isAllowed("installSearchEngine")) {
throw new Error("Search Engine installation blocked by the Enterprise Policy Manager.");
}
} catch (ex) {
Cu.reportError("Invalid argument passed to window.external.AddSearchProvider: " + ex);
var searchBundle = Services.strings.createBundle("chrome://global/locale/search/search.properties");
var brandBundle = Services.strings.createBundle("chrome://branding/locale/brand.properties");
var brandName = brandBundle.GetStringFromName("brandShortName");
var title = searchBundle.GetStringFromName("error_invalid_format_title");
var msg = searchBundle.formatStringFromName("error_invalid_engine_msg2",
[brandName, engineURL.spec]);
Services.ww.getNewPrompter(browser.ownerGlobal).alert(title, msg);
return;
}
Services.search.addEngine(engineURL.spec, iconURL ? iconURL.spec : null, true)
.catch(ex => Cu.reportError("Unable to add search engine to the search service: " + ex));
},
observe(subject, topic, data) {
switch (topic) {
case "app-startup": {
Services.obs.addObserver(this, "ipc:first-content-process-created");
Services.obs.addObserver(this, "xpcom-shutdown");
ChromeUtils.import("resource://gre/modules/CustomElementsListener.jsm", null);
// Load this script early so that console.* is initialized
// before other frame scripts.
Services.mm.loadFrameScript("chrome://global/content/browser-content.js", true, true);
Services.ppmm.loadProcessScript("chrome://global/content/process-content.js", true, true);
Services.mm.addMessageListener("Search:AddEngine", this.addSearchEngine);
Services.ppmm.loadProcessScript("resource:///modules/ContentObservers.js", true);
break;
}
case "ipc:first-content-process-created": {
// L10nRegistry needs to be initialized before any content
// process is loaded to populate the registered FileSource
// categories.
ChromeUtils.import("resource://gre/modules/L10nRegistry.jsm");
break;
}
case "xpcom-shutdown":
Services.mm.removeMessageListener("Search:AddEngine", this.addSearchEngine);
break;
}
},
};
var EXPORTED_SYMBOLS = ["MainProcessSingleton"];