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comparison: browser/components/downloads/src/DownloadsStartup.js
browser/components/downloads/src/DownloadsStartup.js
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| -1:000000000000 | 0:9bae59029d6e |
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| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set ts=2 et sw=2 tw=80 filetype=javascript: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 /** | |
| 8 * This component enables the JavaScript API for downloads at startup. This | |
| 9 * will eventually be removed when nsIDownloadManager will not be available | |
| 10 * anymore (bug 851471). | |
| 11 */ | |
| 12 | |
| 13 "use strict"; | |
| 14 | |
| 15 //////////////////////////////////////////////////////////////////////////////// | |
| 16 //// Globals | |
| 17 | |
| 18 const Cc = Components.classes; | |
| 19 const Ci = Components.interfaces; | |
| 20 const Cu = Components.utils; | |
| 21 const Cr = Components.results; | |
| 22 | |
| 23 Cu.import("resource://gre/modules/XPCOMUtils.jsm"); | |
| 24 | |
| 25 /** | |
| 26 * CID and Contract ID of our implementation of nsIDownloadManagerUI. | |
| 27 */ | |
| 28 const kDownloadsUICid = Components.ID("{4d99321e-d156-455b-81f7-e7aa2308134f}"); | |
| 29 const kDownloadsUIContractId = "@mozilla.org/download-manager-ui;1"; | |
| 30 | |
| 31 /** | |
| 32 * CID and Contract ID of the JavaScript implementation of nsITransfer. | |
| 33 */ | |
| 34 const kTransferCid = Components.ID("{1b4c85df-cbdd-4bb6-b04e-613caece083c}"); | |
| 35 const kTransferContractId = "@mozilla.org/transfer;1"; | |
| 36 | |
| 37 //////////////////////////////////////////////////////////////////////////////// | |
| 38 //// DownloadsStartup | |
| 39 | |
| 40 function DownloadsStartup() { } | |
| 41 | |
| 42 DownloadsStartup.prototype = { | |
| 43 classID: Components.ID("{49507fe5-2cee-4824-b6a3-e999150ce9b8}"), | |
| 44 | |
| 45 _xpcom_factory: XPCOMUtils.generateSingletonFactory(DownloadsStartup), | |
| 46 | |
| 47 ////////////////////////////////////////////////////////////////////////////// | |
| 48 //// nsISupports | |
| 49 | |
| 50 QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]), | |
| 51 | |
| 52 ////////////////////////////////////////////////////////////////////////////// | |
| 53 //// nsIObserver | |
| 54 | |
| 55 observe: function DS_observe(aSubject, aTopic, aData) | |
| 56 { | |
| 57 if (aTopic != "profile-after-change") { | |
| 58 Cu.reportError("Unexpected observer notification."); | |
| 59 return; | |
| 60 } | |
| 61 | |
| 62 // Override Toolkit's nsIDownloadManagerUI implementation with our own. | |
| 63 // This must be done at application startup and not in the manifest to | |
| 64 // ensure that our implementation overrides the original one. | |
| 65 Components.manager.QueryInterface(Ci.nsIComponentRegistrar) | |
| 66 .registerFactory(kDownloadsUICid, "", | |
| 67 kDownloadsUIContractId, null); | |
| 68 | |
| 69 // Override Toolkit's nsITransfer implementation with the one from the | |
| 70 // JavaScript API for downloads. | |
| 71 Components.manager.QueryInterface(Ci.nsIComponentRegistrar) | |
| 72 .registerFactory(kTransferCid, "", | |
| 73 kTransferContractId, null); | |
| 74 }, | |
| 75 }; | |
| 76 | |
| 77 //////////////////////////////////////////////////////////////////////////////// | |
| 78 //// Module | |
| 79 | |
| 80 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([DownloadsStartup]); |
