The Tor Browser / annotate

toolkit/modules/WindowsPrefSync.jsm@6474c204b198 (annotated)

toolkit/modules/WindowsPrefSync.jsm

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

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
michael@0 3 * file, 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 this.EXPORTED_SYMBOLS = [];
michael@0 8
michael@0 9 #ifdef XP_WIN
michael@0 10 #ifdef MOZ_METRO
michael@0 11
michael@0 12 const {classes: Cc, interfaces: Ci, results: Cr, utils: Cu, manager: Cm} =
michael@0 13 Components;
michael@0 14 const PREF_BASE_KEY = "Software\\Mozilla\\Firefox\\Metro\\Prefs\\";
michael@0 15
michael@0 16 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
michael@0 17 Cu.import("resource://gre/modules/Services.jsm");
michael@0 18
michael@0 19 this.EXPORTED_SYMBOLS = [ "WindowsPrefSync" ];
michael@0 20
michael@0 21 /**
michael@0 22 * Manages preferences that need to be pulled and pushed between Metro
michael@0 23 * and desktop.
michael@0 24 */
michael@0 25 this.WindowsPrefSync = {
michael@0 26 init: function() {
michael@0 27 this.pullSharedPrefs();
michael@0 28 this.prefListToPush.forEach(function(prefName) {
michael@0 29 this.pushSharedPref(prefName);
michael@0 30 Services.prefs.addObserver(prefName, this, false);
michael@0 31 }, this);
michael@0 32 },
michael@0 33
michael@0 34 uninit: function() {
michael@0 35 this.prefListToPush.forEach(function(prefName) {
michael@0 36 Services.prefs.removeObserver(prefName, this);
michael@0 37 }, this);
michael@0 38 },
michael@0 39
michael@0 40 /**
michael@0 41 * Returns the list of prefs that should be pushed for the current
michael@0 42 * environment.
michael@0 43 */
michael@0 44 get prefListToPush() {
michael@0 45 return !Services.metro.immersive ? this.desktopControlledPrefs :
michael@0 46 this.metroControlledPrefs;
michael@0 47 },
michael@0 48
michael@0 49 /**
michael@0 50 * Returns the list of prefs that should be pulled for the current
michael@0 51 * environment.
michael@0 52 */
michael@0 53 get prefListToPull() {
michael@0 54 return Services.metro.immersive ? this.desktopControlledPrefs :
michael@0 55 this.metroControlledPrefs;
michael@0 56 },
michael@0 57
michael@0 58 /**
michael@0 59 * The following preferences will be pushed to registry from Desktop
michael@0 60 * Firefox and pulled in from Metro Firefox.
michael@0 61 *
michael@0 62 * app.update.* prefs are because Metro shares an installation directory with
michael@0 63 * Firefox, and the options for these are only present in the Desktop options.
michael@0 64 *
michael@0 65 * browser.sessionstore.resume_session_once is mainly for the switch to Metro
michael@0 66 * and switch to Desktop feature.
michael@0 67 *
michael@0 68 * browser.startup.page - if a desktop Firefox user wants her/his sessions
michael@0 69 * to always restore, we need to honor that in metro Firefox as well.
michael@0 70 */
michael@0 71 desktopControlledPrefs: ["app.update.auto",
michael@0 72 "app.update.enabled",
michael@0 73 "app.update.service.enabled",
michael@0 74 "app.update.metro.enabled",
michael@0 75 "browser.sessionstore.resume_session_once",
michael@0 76 "browser.startup.page"],
michael@0 77
michael@0 78 /**
michael@0 79 * Returns the base path where registry sync prefs are stored.
michael@0 80 */
michael@0 81 get prefRegistryPath() {
michael@0 82 let profileService = Cc["@mozilla.org/toolkit/profile-service;1"].
michael@0 83 createInstance(Ci.nsIToolkitProfileService);
michael@0 84 return PREF_BASE_KEY + profileService.selectedProfile.name + "\\";
michael@0 85 },
michael@0 86
michael@0 87 /**
michael@0 88 * The following preferences will be pushed to registry from Metro
michael@0 89 * Firefox and pulled in from Desktop Firefox.
michael@0 90 *
michael@0 91 * browser.sessionstore.resume_session_once is mainly for the switch to Metro
michael@0 92 * and switch to Desktop feature.
michael@0 93 */
michael@0 94 metroControlledPrefs: ["browser.sessionstore.resume_session_once"],
michael@0 95
michael@0 96 /**
michael@0 97 * Observes preference changes and writes them to the registry, only
michael@0 98 * the list of preferences initialized will be observed
michael@0 99 */
michael@0 100 observe: function (aSubject, aTopic, aPrefName) {
michael@0 101 if (aTopic != "nsPref:changed")
michael@0 102 return;
michael@0 103
michael@0 104 this.pushSharedPref(aPrefName);
michael@0 105 },
michael@0 106
michael@0 107 /**
michael@0 108 * Writes the pref to HKCU in the registry and adds a pref-observer to keep
michael@0 109 * the registry in sync with changes to the value.
michael@0 110 */
michael@0 111 pushSharedPref : function(aPrefName) {
michael@0 112 let registry = Cc["@mozilla.org/windows-registry-key;1"].
michael@0 113 createInstance(Ci.nsIWindowsRegKey);
michael@0 114 try {
michael@0 115 var prefType = Services.prefs.getPrefType(aPrefName);
michael@0 116 let prefFunc;
michael@0 117 if (prefType == Ci.nsIPrefBranch.PREF_INT)
michael@0 118 prefFunc = "getIntPref";
michael@0 119 else if (prefType == Ci.nsIPrefBranch.PREF_BOOL)
michael@0 120 prefFunc = "getBoolPref";
michael@0 121 else if (prefType == Ci.nsIPrefBranch.PREF_STRING)
michael@0 122 prefFunc = "getCharPref";
michael@0 123 else
michael@0 124 throw "Unsupported pref type";
michael@0 125
michael@0 126 let prefValue = Services.prefs[prefFunc](aPrefName);
michael@0 127 registry.create(Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
michael@0 128 this.prefRegistryPath + prefType, Ci.nsIWindowsRegKey.ACCESS_WRITE);
michael@0 129 // Always write as string, but the registry subfolder will determine
michael@0 130 // how Metro interprets that string value.
michael@0 131 registry.writeStringValue(aPrefName, prefValue);
michael@0 132 } catch (ex) {
michael@0 133 Cu.reportError("Couldn't push pref " + aPrefName + ": " + ex);
michael@0 134 } finally {
michael@0 135 registry.close();
michael@0 136 }
michael@0 137 },
michael@0 138
michael@0 139 /**
michael@0 140 * Pulls in all shared prefs from the registry
michael@0 141 */
michael@0 142 pullSharedPrefs: function() {
michael@0 143 function pullSharedPrefType(prefType, prefFunc) {
michael@0 144 try {
michael@0 145 registry.create(Ci.nsIWindowsRegKey.ROOT_KEY_CURRENT_USER,
michael@0 146 self.prefRegistryPath + prefType,
michael@0 147 Ci.nsIWindowsRegKey.ACCESS_ALL);
michael@0 148 for (let i = 0; i < registry.valueCount; i++) {
michael@0 149 let prefName = registry.getValueName(i);
michael@0 150 let prefValue = registry.readStringValue(prefName);
michael@0 151 if (prefType == Ci.nsIPrefBranch.PREF_BOOL) {
michael@0 152 prefValue = prefValue == "true";
michael@0 153 }
michael@0 154 if (self.prefListToPull.indexOf(prefName) != -1) {
michael@0 155 Services.prefs[prefFunc](prefName, prefValue);
michael@0 156 }
michael@0 157 }
michael@0 158 } catch (ex) {
michael@0 159 dump("Could not pull for prefType " + prefType + ": " + ex + "\n");
michael@0 160 } finally {
michael@0 161 registry.close();
michael@0 162 }
michael@0 163 }
michael@0 164 let self = this;
michael@0 165 let registry = Cc["@mozilla.org/windows-registry-key;1"].
michael@0 166 createInstance(Ci.nsIWindowsRegKey);
michael@0 167 pullSharedPrefType(Ci.nsIPrefBranch.PREF_INT, "setIntPref");
michael@0 168 pullSharedPrefType(Ci.nsIPrefBranch.PREF_BOOL, "setBoolPref");
michael@0 169 pullSharedPrefType(Ci.nsIPrefBranch.PREF_STRING, "setCharPref");
michael@0 170 }
michael@0 171 };
michael@0 172 #endif
michael@0 173 #endif

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