The Tor Browser / file comparison
comparison: browser/experiments/ExperimentsService.js
browser/experiments/ExperimentsService.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:49ac8bf31922 |
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| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 "use strict"; | |
| 6 | |
| 7 const {interfaces: Ci, utils: Cu} = Components; | |
| 8 | |
| 9 Cu.import("resource://gre/modules/XPCOMUtils.jsm"); | |
| 10 Cu.import("resource://gre/modules/Services.jsm"); | |
| 11 Cu.import("resource://gre/modules/Preferences.jsm"); | |
| 12 | |
| 13 XPCOMUtils.defineLazyModuleGetter(this, "Experiments", | |
| 14 "resource:///modules/experiments/Experiments.jsm"); | |
| 15 XPCOMUtils.defineLazyModuleGetter(this, "OS", | |
| 16 "resource://gre/modules/osfile.jsm"); | |
| 17 XPCOMUtils.defineLazyModuleGetter(this, "CommonUtils", | |
| 18 "resource://services-common/utils.js"); | |
| 19 | |
| 20 const PREF_EXPERIMENTS_ENABLED = "experiments.enabled"; | |
| 21 const PREF_ACTIVE_EXPERIMENT = "experiments.activeExperiment"; // whether we have an active experiment | |
| 22 const PREF_HEALTHREPORT_ENABLED = "datareporting.healthreport.service.enabled"; | |
| 23 const PREF_TELEMETRY_ENABLED = "toolkit.telemetry.enabled"; | |
| 24 const DELAY_INIT_MS = 30 * 1000; | |
| 25 | |
| 26 XPCOMUtils.defineLazyGetter( | |
| 27 this, "gPrefs", () => { | |
| 28 return new Preferences(); | |
| 29 }); | |
| 30 | |
| 31 XPCOMUtils.defineLazyGetter( | |
| 32 this, "gExperimentsEnabled", () => { | |
| 33 return gPrefs.get(PREF_EXPERIMENTS_ENABLED, false) && | |
| 34 gPrefs.get(PREF_TELEMETRY_ENABLED, false) && | |
| 35 gPrefs.get(PREF_HEALTHREPORT_ENABLED, false); | |
| 36 }); | |
| 37 | |
| 38 XPCOMUtils.defineLazyGetter( | |
| 39 this, "gActiveExperiment", () => { | |
| 40 return gPrefs.get(PREF_ACTIVE_EXPERIMENT); | |
| 41 }); | |
| 42 | |
| 43 function ExperimentsService() { | |
| 44 this._initialized = false; | |
| 45 this._delayedInitTimer = null; | |
| 46 } | |
| 47 | |
| 48 ExperimentsService.prototype = { | |
| 49 classID: Components.ID("{f7800463-3b97-47f9-9341-b7617e6d8d49}"), | |
| 50 QueryInterface: XPCOMUtils.generateQI([Ci.nsITimerCallback, Ci.nsIObserver]), | |
| 51 | |
| 52 notify: function (timer) { | |
| 53 if (!gExperimentsEnabled) { | |
| 54 return; | |
| 55 } | |
| 56 if (OS.Constants.Path.profileDir === undefined) { | |
| 57 throw Error("Update timer fired before profile was initialized?"); | |
| 58 } | |
| 59 Experiments.instance().updateManifest(); | |
| 60 }, | |
| 61 | |
| 62 _delayedInit: function () { | |
| 63 if (!this._initialized) { | |
| 64 this._initialized = true; | |
| 65 Experiments.instance(); // for side effects | |
| 66 } | |
| 67 }, | |
| 68 | |
| 69 observe: function (subject, topic, data) { | |
| 70 switch (topic) { | |
| 71 case "profile-after-change": | |
| 72 if (gExperimentsEnabled) { | |
| 73 Services.obs.addObserver(this, "quit-application", false); | |
| 74 Services.obs.addObserver(this, "sessionstore-state-finalized", false); | |
| 75 Services.obs.addObserver(this, "EM-loaded", false); | |
| 76 | |
| 77 if (gActiveExperiment) { | |
| 78 this._initialized = true; | |
| 79 Experiments.instance(); // for side effects | |
| 80 } | |
| 81 } | |
| 82 break; | |
| 83 case "sessionstore-state-finalized": | |
| 84 if (!this._initialized) { | |
| 85 CommonUtils.namedTimer(this._delayedInit, DELAY_INIT_MS, this, "_delayedInitTimer"); | |
| 86 } | |
| 87 break; | |
| 88 case "EM-loaded": | |
| 89 if (!this._initialized) { | |
| 90 Experiments.instance(); // for side effects | |
| 91 this._initialized = true; | |
| 92 | |
| 93 if (this._delayedInitTimer) { | |
| 94 this._delayedInitTimer.clear(); | |
| 95 } | |
| 96 } | |
| 97 break; | |
| 98 case "quit-application": | |
| 99 Services.obs.removeObserver(this, "quit-application"); | |
| 100 Services.obs.removeObserver(this, "sessionstore-state-finalized"); | |
| 101 Services.obs.removeObserver(this, "EM-loaded"); | |
| 102 if (this._delayedInitTimer) { | |
| 103 this._delayedInitTimer.clear(); | |
| 104 } | |
| 105 break; | |
| 106 } | |
| 107 }, | |
| 108 }; | |
| 109 | |
| 110 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([ExperimentsService]); |
