The Tor Browser / file comparison
comparison: toolkit/components/places/PlacesCategoriesStarter.js
toolkit/components/places/PlacesCategoriesStarter.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:adff5b7784c9 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * vim: sw=2 ts=2 sts=2 expandtab | |
| 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 //// Constants | |
| 9 | |
| 10 const Cc = Components.classes; | |
| 11 const Ci = Components.interfaces; | |
| 12 const Cu = Components.utils; | |
| 13 | |
| 14 // Fired by TelemetryPing when async telemetry data should be collected. | |
| 15 const TOPIC_GATHER_TELEMETRY = "gather-telemetry"; | |
| 16 | |
| 17 // Seconds between maintenance runs. | |
| 18 const MAINTENANCE_INTERVAL_SECONDS = 7 * 86400; | |
| 19 | |
| 20 //////////////////////////////////////////////////////////////////////////////// | |
| 21 //// Imports | |
| 22 | |
| 23 Components.utils.import("resource://gre/modules/XPCOMUtils.jsm"); | |
| 24 Components.utils.import("resource://gre/modules/Services.jsm"); | |
| 25 Components.utils.import("resource://gre/modules/PlacesUtils.jsm"); | |
| 26 XPCOMUtils.defineLazyModuleGetter(this, "PlacesDBUtils", | |
| 27 "resource://gre/modules/PlacesDBUtils.jsm"); | |
| 28 | |
| 29 /** | |
| 30 * This component can be used as a starter for modules that have to run when | |
| 31 * certain categories are invoked. | |
| 32 */ | |
| 33 function PlacesCategoriesStarter() | |
| 34 { | |
| 35 Services.obs.addObserver(this, TOPIC_GATHER_TELEMETRY, false); | |
| 36 Services.obs.addObserver(this, PlacesUtils.TOPIC_SHUTDOWN, false); | |
| 37 | |
| 38 // nsINavBookmarkObserver implementation. | |
| 39 let notify = (function () { | |
| 40 if (!this._notifiedBookmarksSvcReady) { | |
| 41 // For perf reasons unregister from the category, since no further | |
| 42 // notifications are needed. | |
| 43 Cc["@mozilla.org/categorymanager;1"] | |
| 44 .getService(Ci.nsICategoryManager) | |
| 45 .deleteCategoryEntry("bookmarks-observer", this, false); | |
| 46 // Directly notify PlacesUtils, to ensure it catches the notification. | |
| 47 PlacesUtils.observe(null, "bookmarks-service-ready", null); | |
| 48 } | |
| 49 }).bind(this); | |
| 50 [ "onItemAdded", "onItemRemoved", "onItemChanged", "onBeginUpdateBatch", | |
| 51 "onEndUpdateBatch", "onItemVisited", | |
| 52 "onItemMoved" ].forEach(function(aMethod) { | |
| 53 this[aMethod] = notify; | |
| 54 }, this); | |
| 55 } | |
| 56 | |
| 57 PlacesCategoriesStarter.prototype = { | |
| 58 ////////////////////////////////////////////////////////////////////////////// | |
| 59 //// nsIObserver | |
| 60 | |
| 61 observe: function PCS_observe(aSubject, aTopic, aData) | |
| 62 { | |
| 63 switch (aTopic) { | |
| 64 case PlacesUtils.TOPIC_SHUTDOWN: | |
| 65 Services.obs.removeObserver(this, PlacesUtils.TOPIC_SHUTDOWN); | |
| 66 Services.obs.removeObserver(this, TOPIC_GATHER_TELEMETRY); | |
| 67 let globalObj = | |
| 68 Cu.getGlobalForObject(PlacesCategoriesStarter.prototype); | |
| 69 let descriptor = | |
| 70 Object.getOwnPropertyDescriptor(globalObj, "PlacesDBUtils"); | |
| 71 if (descriptor.value !== undefined) { | |
| 72 PlacesDBUtils.shutdown(); | |
| 73 } | |
| 74 break; | |
| 75 case TOPIC_GATHER_TELEMETRY: | |
| 76 PlacesDBUtils.telemetry(); | |
| 77 break; | |
| 78 case "idle-daily": | |
| 79 // Once a week run places.sqlite maintenance tasks. | |
| 80 let lastMaintenance = 0; | |
| 81 try { | |
| 82 lastMaintenance = | |
| 83 Services.prefs.getIntPref("places.database.lastMaintenance"); | |
| 84 } catch (ex) {} | |
| 85 let nowSeconds = parseInt(Date.now() / 1000); | |
| 86 if (lastMaintenance < nowSeconds - MAINTENANCE_INTERVAL_SECONDS) { | |
| 87 PlacesDBUtils.maintenanceOnIdle(); | |
| 88 } | |
| 89 break; | |
| 90 default: | |
| 91 throw new Error("Trying to handle an unknown category."); | |
| 92 } | |
| 93 }, | |
| 94 | |
| 95 ////////////////////////////////////////////////////////////////////////////// | |
| 96 //// nsISupports | |
| 97 | |
| 98 classID: Components.ID("803938d5-e26d-4453-bf46-ad4b26e41114"), | |
| 99 | |
| 100 _xpcom_factory: XPCOMUtils.generateSingletonFactory(PlacesCategoriesStarter), | |
| 101 | |
| 102 QueryInterface: XPCOMUtils.generateQI([ | |
| 103 Ci.nsIObserver | |
| 104 , Ci.nsINavBookmarkObserver | |
| 105 ]) | |
| 106 }; | |
| 107 | |
| 108 //////////////////////////////////////////////////////////////////////////////// | |
| 109 //// Module Registration | |
| 110 | |
| 111 let components = [PlacesCategoriesStarter]; | |
| 112 this.NSGetFactory = XPCOMUtils.generateNSGetFactory(components); |
