dom/apps/src/AppDownloadManager.jsm@129ffea94266 (annotated)
dom/apps/src/AppDownloadManager.jsm
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
| michael@0 | 3 | * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | "use strict"; |
| michael@0 | 6 | |
| michael@0 | 7 | const Cc = Components.classes; |
| michael@0 | 8 | const Ci = Components.interfaces; |
| michael@0 | 9 | const Cu = Components.utils; |
| michael@0 | 10 | |
| michael@0 | 11 | Cu.import("resource://gre/modules/XPCOMUtils.jsm"); |
| michael@0 | 12 | |
| michael@0 | 13 | XPCOMUtils.defineLazyModuleGetter(this, "FreeSpaceWatcher", |
| michael@0 | 14 | "resource://gre/modules/FreeSpaceWatcher.jsm"); |
| michael@0 | 15 | |
| michael@0 | 16 | this.EXPORTED_SYMBOLS = ["AppDownloadManager"]; |
| michael@0 | 17 | |
| michael@0 | 18 | function debug(aMsg) { |
| michael@0 | 19 | //dump("-*-*- AppDownloadManager.jsm : " + aMsg + "\n"); |
| michael@0 | 20 | } |
| michael@0 | 21 | |
| michael@0 | 22 | this.AppDownloadManager = { |
| michael@0 | 23 | // Minimum disk free space we want to keep, in bytes. |
| michael@0 | 24 | // Keep synchronized with Webapps.jsm |
| michael@0 | 25 | MIN_REMAINING_FREESPACE: 5 * 1024 * 1024, |
| michael@0 | 26 | |
| michael@0 | 27 | downloads: {}, |
| michael@0 | 28 | count: 0, |
| michael@0 | 29 | cancelFunc: null, |
| michael@0 | 30 | timer: null, |
| michael@0 | 31 | |
| michael@0 | 32 | /** |
| michael@0 | 33 | * Registers the function called when we need to cancel a download. |
| michael@0 | 34 | * The function will be called with a single parameter being the |
| michael@0 | 35 | * manifest URL. |
| michael@0 | 36 | */ |
| michael@0 | 37 | registerCancelFunction: function app_dlMgr_registerCancel(aFunction) { |
| michael@0 | 38 | this.cancelFunc = aFunction; |
| michael@0 | 39 | }, |
| michael@0 | 40 | |
| michael@0 | 41 | /** |
| michael@0 | 42 | * Adds a download to the list of current downloads. |
| michael@0 | 43 | * @param aManifestURL The manifest URL for the application being downloaded. |
| michael@0 | 44 | * @param aDownload An opaque object representing the download. |
| michael@0 | 45 | */ |
| michael@0 | 46 | add: function app_dlMgr_add(aManifestURL, aDownload) { |
| michael@0 | 47 | debug("Adding " + aManifestURL); |
| michael@0 | 48 | if (!(aManifestURL in this.downloads)) { |
| michael@0 | 49 | this.count++; |
| michael@0 | 50 | if (this.count == 1) { |
| michael@0 | 51 | this.timer = FreeSpaceWatcher.create(this.MIN_REMAINING_FREESPACE, |
| michael@0 | 52 | this._spaceWatcher.bind(this)); |
| michael@0 | 53 | } |
| michael@0 | 54 | } |
| michael@0 | 55 | this.downloads[aManifestURL] = aDownload; |
| michael@0 | 56 | }, |
| michael@0 | 57 | |
| michael@0 | 58 | /** |
| michael@0 | 59 | * Retrieves a download from the list of current downloads. |
| michael@0 | 60 | * @param aManifestURL The manifest URL for the application being retrieved. |
| michael@0 | 61 | * @return The opaque object representing the download. |
| michael@0 | 62 | */ |
| michael@0 | 63 | get: function app_dlMgr_get(aManifestURL) { |
| michael@0 | 64 | debug("Getting " + aManifestURL); |
| michael@0 | 65 | if (!this.downloads[aManifestURL]) { |
| michael@0 | 66 | return null; |
| michael@0 | 67 | } |
| michael@0 | 68 | return this.downloads[aManifestURL]; |
| michael@0 | 69 | }, |
| michael@0 | 70 | |
| michael@0 | 71 | /** |
| michael@0 | 72 | * Removes a download of the list of current downloads. |
| michael@0 | 73 | * @param aManifestURL The manifest URL for the application being removed. |
| michael@0 | 74 | */ |
| michael@0 | 75 | remove: function app_dlMgr_remove(aManifestURL) { |
| michael@0 | 76 | debug("Removing " + aManifestURL); |
| michael@0 | 77 | if (aManifestURL in this.downloads) { |
| michael@0 | 78 | this.count--; |
| michael@0 | 79 | delete this.downloads[aManifestURL]; |
| michael@0 | 80 | if (this.count == 0) { |
| michael@0 | 81 | FreeSpaceWatcher.stop(this.timer); |
| michael@0 | 82 | } |
| michael@0 | 83 | } |
| michael@0 | 84 | }, |
| michael@0 | 85 | |
| michael@0 | 86 | /** |
| michael@0 | 87 | * Callback for the free space watcher. This will call cancel on downloads |
| michael@0 | 88 | * if needed. |
| michael@0 | 89 | */ |
| michael@0 | 90 | _spaceWatcher: function app_dlMgr_watcher(aStatus) { |
| michael@0 | 91 | debug("Disk space is now " + aStatus); |
| michael@0 | 92 | if (aStatus == "free") { |
| michael@0 | 93 | // Nothing to do. |
| michael@0 | 94 | return; |
| michael@0 | 95 | } |
| michael@0 | 96 | |
| michael@0 | 97 | // We cancel all downloads, because we don't know which ones we could |
| michael@0 | 98 | // keep running. We can improve that later if we have better heuristics, |
| michael@0 | 99 | // or when we'll support pause & resume we should just pause downloads. |
| michael@0 | 100 | for (let url in this.downloads) { |
| michael@0 | 101 | this.cancelFunc(url, "INSUFFICIENT_STORAGE"); |
| michael@0 | 102 | } |
| michael@0 | 103 | } |
| michael@0 | 104 | } |
