74 строки
2.4 KiB
JavaScript
74 строки
2.4 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80 filetype=javascript: */
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/* 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* This component enables the JavaScript API for downloads at startup. This
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* will eventually be removed when nsIDownloadManager will not be available
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* anymore (bug 851471).
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*/
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"use strict";
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////////////////////////////////////////////////////////////////////////////////
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//// Globals
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var Ci = Components.interfaces;
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var Cu = Components.utils;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "DownloadIntegration",
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"resource://gre/modules/DownloadIntegration.jsm");
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/**
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* CID and Contract ID of the JavaScript implementation of nsITransfer.
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*/
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var kTransferCid = Components.ID("{1b4c85df-cbdd-4bb6-b04e-613caece083c}");
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var kTransferContractId = "@mozilla.org/transfer;1";
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////////////////////////////////////////////////////////////////////////////////
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//// DownloadsStartup
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function DownloadsStartup() { }
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DownloadsStartup.prototype = {
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classID: Components.ID("{a93f0d6f-02a3-4486-a662-8f49b8c1de48}"),
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_xpcom_factory: XPCOMUtils.generateSingletonFactory(DownloadsStartup),
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//////////////////////////////////////////////////////////////////////////////
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//// nsISupports
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]),
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//////////////////////////////////////////////////////////////////////////////
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//// nsIObserver
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observe: function DS_observe(aSubject, aTopic, aData)
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{
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if (aTopic != "profile-after-change") {
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Cu.reportError("Unexpected observer notification.");
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return;
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}
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// Override Toolkit's nsITransfer implementation with the one from the
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// JavaScript API for downloads.
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Components.manager.QueryInterface(Ci.nsIComponentRegistrar)
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.registerFactory(kTransferCid, "",
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kTransferContractId, null);
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// To preserve download list across sessions.
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DownloadIntegration.shouldPersistDownload = function(aDownload) {
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return true;
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};
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},
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};
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////////////////////////////////////////////////////////////////////////////////
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//// Module
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([DownloadsStartup]);
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