1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/browser/components/downloads/src/DownloadsStartup.js Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,80 @@ 1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 1.5 +/* vim: set ts=2 et sw=2 tw=80 filetype=javascript: */ 1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public 1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this 1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 1.9 + 1.10 +/** 1.11 + * This component enables the JavaScript API for downloads at startup. This 1.12 + * will eventually be removed when nsIDownloadManager will not be available 1.13 + * anymore (bug 851471). 1.14 + */ 1.15 + 1.16 +"use strict"; 1.17 + 1.18 +//////////////////////////////////////////////////////////////////////////////// 1.19 +//// Globals 1.20 + 1.21 +const Cc = Components.classes; 1.22 +const Ci = Components.interfaces; 1.23 +const Cu = Components.utils; 1.24 +const Cr = Components.results; 1.25 + 1.26 +Cu.import("resource://gre/modules/XPCOMUtils.jsm"); 1.27 + 1.28 +/** 1.29 + * CID and Contract ID of our implementation of nsIDownloadManagerUI. 1.30 + */ 1.31 +const kDownloadsUICid = Components.ID("{4d99321e-d156-455b-81f7-e7aa2308134f}"); 1.32 +const kDownloadsUIContractId = "@mozilla.org/download-manager-ui;1"; 1.33 + 1.34 +/** 1.35 + * CID and Contract ID of the JavaScript implementation of nsITransfer. 1.36 + */ 1.37 +const kTransferCid = Components.ID("{1b4c85df-cbdd-4bb6-b04e-613caece083c}"); 1.38 +const kTransferContractId = "@mozilla.org/transfer;1"; 1.39 + 1.40 +//////////////////////////////////////////////////////////////////////////////// 1.41 +//// DownloadsStartup 1.42 + 1.43 +function DownloadsStartup() { } 1.44 + 1.45 +DownloadsStartup.prototype = { 1.46 + classID: Components.ID("{49507fe5-2cee-4824-b6a3-e999150ce9b8}"), 1.47 + 1.48 + _xpcom_factory: XPCOMUtils.generateSingletonFactory(DownloadsStartup), 1.49 + 1.50 + ////////////////////////////////////////////////////////////////////////////// 1.51 + //// nsISupports 1.52 + 1.53 + QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]), 1.54 + 1.55 + ////////////////////////////////////////////////////////////////////////////// 1.56 + //// nsIObserver 1.57 + 1.58 + observe: function DS_observe(aSubject, aTopic, aData) 1.59 + { 1.60 + if (aTopic != "profile-after-change") { 1.61 + Cu.reportError("Unexpected observer notification."); 1.62 + return; 1.63 + } 1.64 + 1.65 + // Override Toolkit's nsIDownloadManagerUI implementation with our own. 1.66 + // This must be done at application startup and not in the manifest to 1.67 + // ensure that our implementation overrides the original one. 1.68 + Components.manager.QueryInterface(Ci.nsIComponentRegistrar) 1.69 + .registerFactory(kDownloadsUICid, "", 1.70 + kDownloadsUIContractId, null); 1.71 + 1.72 + // Override Toolkit's nsITransfer implementation with the one from the 1.73 + // JavaScript API for downloads. 1.74 + Components.manager.QueryInterface(Ci.nsIComponentRegistrar) 1.75 + .registerFactory(kTransferCid, "", 1.76 + kTransferContractId, null); 1.77 + }, 1.78 +}; 1.79 + 1.80 +//////////////////////////////////////////////////////////////////////////////// 1.81 +//// Module 1.82 + 1.83 +this.NSGetFactory = XPCOMUtils.generateNSGetFactory([DownloadsStartup]);