forked from mirrors/gecko-dev
		
	
		
			
				
	
	
		
			659 lines
		
	
	
	
		
			21 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			659 lines
		
	
	
	
		
			21 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| /* This Source Code Form is subject to the terms of the Mozilla Public
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|  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
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|  * You can obtain one at http://mozilla.org/MPL/2.0/. */
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| 
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| "use strict";
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| 
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| const kIMig = Ci.nsIBrowserProfileMigrator;
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| const kIPStartup = Ci.nsIProfileStartup;
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| 
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| const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
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| const { AppConstants } = ChromeUtils.import(
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|   "resource://gre/modules/AppConstants.jsm"
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| );
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| const { MigrationUtils } = ChromeUtils.import(
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|   "resource:///modules/MigrationUtils.jsm"
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| );
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| 
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| /**
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|  * Map from data types that match Ci.nsIBrowserProfileMigrator's types to
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|  * prefixes for strings used to label these data types in the migration
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|  * dialog. We use these strings with -checkbox and -label suffixes for the
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|  * checkboxes on the "importItems" page, and for the labels on the "migrating"
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|  * and "done" pages, respectively.
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|  */
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| const kDataToStringMap = new Map([
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|   ["cookies", "browser-data-cookies"],
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|   ["history", "browser-data-history"],
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|   ["formdata", "browser-data-formdata"],
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|   ["passwords", "browser-data-passwords"],
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|   ["bookmarks", "browser-data-bookmarks"],
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|   ["otherdata", "browser-data-otherdata"],
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|   ["session", "browser-data-session"],
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| ]);
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| 
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| var MigrationWizard = {
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|   /* exported MigrationWizard */
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|   _source: "", // Source Profile Migrator ContractID suffix
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|   _itemsFlags: kIMig.ALL, // Selected Import Data Sources (16-bit bitfield)
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|   _selectedProfile: null, // Selected Profile name to import from
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|   _wiz: null,
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|   _migrator: null,
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|   _autoMigrate: null,
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|   _receivedPermissions: new Set(),
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| 
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|   init() {
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|     let os = Services.obs;
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|     os.addObserver(this, "Migration:Started");
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|     os.addObserver(this, "Migration:ItemBeforeMigrate");
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|     os.addObserver(this, "Migration:ItemAfterMigrate");
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|     os.addObserver(this, "Migration:ItemError");
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|     os.addObserver(this, "Migration:Ended");
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| 
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|     this._wiz = document.querySelector("wizard");
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| 
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|     let args = window.arguments;
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|     let entryPointId = args[0] || MigrationUtils.MIGRATION_ENTRYPOINT_UNKNOWN;
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|     Services.telemetry
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|       .getHistogramById("FX_MIGRATION_ENTRY_POINT")
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|       .add(entryPointId);
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|     this.isInitialMigration =
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|       entryPointId == MigrationUtils.MIGRATION_ENTRYPOINT_FIRSTRUN;
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| 
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|     {
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|       // Record that the uninstaller requested a profile refresh
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|       let env = Cc["@mozilla.org/process/environment;1"].getService(
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|         Ci.nsIEnvironment
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|       );
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|       if (env.get("MOZ_UNINSTALLER_PROFILE_REFRESH")) {
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|         env.set("MOZ_UNINSTALLER_PROFILE_REFRESH", "");
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|         Services.telemetry.scalarSet(
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|           "migration.uninstaller_profile_refresh",
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|           true
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|         );
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|       }
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|     }
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| 
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|     if (args.length == 2) {
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|       this._source = args[1];
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|     } else if (args.length > 2) {
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|       this._source = args[1];
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|       this._migrator = args[2] instanceof kIMig ? args[2] : null;
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|       this._autoMigrate = args[3].QueryInterface(kIPStartup);
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|       this._skipImportSourcePage = args[4];
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|       if (this._migrator && args[5]) {
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|         let sourceProfiles = this.spinResolve(
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|           this._migrator.getSourceProfiles()
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|         );
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|         this._selectedProfile = sourceProfiles.find(
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|           profile => profile.id == args[5]
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|         );
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|       }
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| 
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|       if (this._autoMigrate) {
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|         // Show the "nothing" option in the automigrate case to provide an
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|         // easily identifiable way to avoid migration and create a new profile.
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|         document.getElementById("nothing").hidden = false;
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|       }
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|     }
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|     this._setSourceForDataLocalization();
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| 
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|     document.addEventListener("wizardcancel", function() {
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|       MigrationWizard.onWizardCancel();
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|     });
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| 
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|     document
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|       .getElementById("selectProfile")
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|       .addEventListener("pageshow", function() {
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|         MigrationWizard.onSelectProfilePageShow();
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|       });
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|     document
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|       .getElementById("importItems")
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|       .addEventListener("pageshow", function() {
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|         MigrationWizard.onImportItemsPageShow();
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|       });
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|     document
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|       .getElementById("migrating")
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|       .addEventListener("pageshow", function() {
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|         MigrationWizard.onMigratingPageShow();
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|       });
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|     document.getElementById("done").addEventListener("pageshow", function() {
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|       MigrationWizard.onDonePageShow();
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|     });
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| 
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|     document
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|       .getElementById("selectProfile")
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|       .addEventListener("pagerewound", function() {
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|         MigrationWizard.onSelectProfilePageRewound();
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|       });
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|     document
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|       .getElementById("importItems")
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|       .addEventListener("pagerewound", function() {
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|         MigrationWizard.onImportItemsPageRewound();
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|       });
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| 
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|     document
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|       .getElementById("selectProfile")
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|       .addEventListener("pageadvanced", function() {
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|         MigrationWizard.onSelectProfilePageAdvanced();
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|       });
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|     document
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|       .getElementById("importItems")
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|       .addEventListener("pageadvanced", function() {
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|         MigrationWizard.onImportItemsPageAdvanced();
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|       });
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|     document
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|       .getElementById("importPermissions")
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|       .addEventListener("pageadvanced", function(e) {
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|         MigrationWizard.onImportPermissionsPageAdvanced(e);
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|       });
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|     document
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|       .getElementById("importSource")
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|       .addEventListener("pageadvanced", function(e) {
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|         MigrationWizard.onImportSourcePageAdvanced(e);
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|       });
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| 
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|     this.onImportSourcePageShow();
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|   },
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| 
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|   uninit() {
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|     var os = Services.obs;
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|     os.removeObserver(this, "Migration:Started");
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|     os.removeObserver(this, "Migration:ItemBeforeMigrate");
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|     os.removeObserver(this, "Migration:ItemAfterMigrate");
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|     os.removeObserver(this, "Migration:ItemError");
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|     os.removeObserver(this, "Migration:Ended");
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|     MigrationUtils.finishMigration();
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|   },
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| 
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|   spinResolve(promise) {
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|     let canAdvance = this._wiz.canAdvance;
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|     let canRewind = this._wiz.canRewind;
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|     this._wiz.canAdvance = false;
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|     this._wiz.canRewind = false;
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|     let result = MigrationUtils.spinResolve(promise);
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|     this._wiz.canAdvance = canAdvance;
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|     this._wiz.canRewind = canRewind;
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|     return result;
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|   },
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| 
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|   _setSourceForDataLocalization() {
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|     this._sourceForDataLocalization = this._source;
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|     // Ensure consistency for various channels, brandings and versions of
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|     // Chromium and MS Edge.
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|     if (this._sourceForDataLocalization) {
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|       this._sourceForDataLocalization = this._sourceForDataLocalization
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|         .replace(/^(chromium-edge-beta|chromium-edge)$/, "edge")
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|         .replace(/^(canary|chromium|chrome-beta|chrome-dev)$/, "chrome");
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|     }
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|   },
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| 
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|   onWizardCancel() {
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|     MigrationUtils.forceExitSpinResolve();
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|     return true;
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|   },
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| 
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|   // 1 - Import Source
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|   onImportSourcePageShow() {
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|     // Show warning message to close the selected browser when needed
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|     let toggleCloseBrowserWarning = () => {
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|       let visibility = "hidden";
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|       if (group.selectedItem.id != "nothing") {
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|         let migrator = this.spinResolve(
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|           MigrationUtils.getMigrator(group.selectedItem.id)
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|         );
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|         visibility = migrator.sourceLocked ? "visible" : "hidden";
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|       }
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|       document.getElementById(
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|         "closeSourceBrowser"
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|       ).style.visibility = visibility;
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|     };
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|     this._wiz.canRewind = false;
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| 
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|     var selectedMigrator = null;
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|     this._availableMigrators = [];
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| 
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|     // Figure out what source apps are are available to import from:
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|     var group = document.getElementById("importSourceGroup");
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|     for (var i = 0; i < group.childNodes.length; ++i) {
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|       var migratorKey = group.childNodes[i].id;
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|       if (migratorKey != "nothing") {
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|         var migrator = this.spinResolve(
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|           MigrationUtils.getMigrator(migratorKey)
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|         );
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|         if (migrator) {
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|           // Save this as the first selectable item, if we don't already have
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|           // one, or if it is the migrator that was passed to us.
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|           if (!selectedMigrator || this._source == migratorKey) {
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|             selectedMigrator = group.childNodes[i];
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|           }
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|           this._availableMigrators.push([migratorKey, migrator]);
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|         } else {
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|           // Hide this option
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|           group.childNodes[i].hidden = true;
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|         }
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|       }
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|     }
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|     if (this.isInitialMigration) {
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|       Services.telemetry
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|         .getHistogramById("FX_STARTUP_MIGRATION_BROWSER_COUNT")
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|         .add(this._availableMigrators.length);
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|       let defaultBrowser = MigrationUtils.getMigratorKeyForDefaultBrowser();
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|       // This will record 0 for unknown default browser IDs.
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|       defaultBrowser = MigrationUtils.getSourceIdForTelemetry(defaultBrowser);
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|       Services.telemetry
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|         .getHistogramById("FX_STARTUP_MIGRATION_EXISTING_DEFAULT_BROWSER")
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|         .add(defaultBrowser);
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|     }
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| 
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|     group.addEventListener("command", toggleCloseBrowserWarning);
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| 
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|     if (selectedMigrator) {
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|       group.selectedItem = selectedMigrator;
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|       toggleCloseBrowserWarning();
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|     } else {
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|       // We didn't find a migrator, notify the user
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|       document.getElementById("noSources").hidden = false;
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| 
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|       this._wiz.canAdvance = false;
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| 
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|       document.getElementById("importAll").hidden = true;
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|     }
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| 
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|     // Advance to the next page if the caller told us to.
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|     if (this._migrator && this._skipImportSourcePage) {
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|       this._wiz.advance();
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|       this._wiz.canRewind = false;
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|     }
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|   },
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| 
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|   onImportSourcePageAdvanced(event) {
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|     var newSource = document.getElementById("importSourceGroup").selectedItem
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|       .id;
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| 
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|     if (newSource == "nothing") {
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|       // Need to do telemetry here because we're closing the dialog before we get to
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|       // do actual migration. For actual migration, this doesn't happen until after
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|       // migration takes place.
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|       Services.telemetry
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|         .getHistogramById("FX_MIGRATION_SOURCE_BROWSER")
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|         .add(MigrationUtils.getSourceIdForTelemetry("nothing"));
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|       this._wiz.cancel();
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|       event.preventDefault();
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|     }
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| 
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|     if (!this._migrator || newSource != this._source) {
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|       // Create the migrator for the selected source.
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|       this._migrator = this.spinResolve(MigrationUtils.getMigrator(newSource));
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| 
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|       this._itemsFlags = kIMig.ALL;
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|       this._selectedProfile = null;
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|     }
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|     this._source = newSource;
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|     this._setSourceForDataLocalization();
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| 
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|     // check for more than one source profile
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|     var sourceProfiles = this.spinResolve(this._migrator.getSourceProfiles());
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|     if (this._skipImportSourcePage) {
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|       this._updateNextPageForPermissions();
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|     } else if (sourceProfiles && sourceProfiles.length > 1) {
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|       this._wiz.currentPage.next = "selectProfile";
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|     } else {
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|       if (this._autoMigrate) {
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|         this._updateNextPageForPermissions();
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|       } else {
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|         this._wiz.currentPage.next = "importItems";
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|       }
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| 
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|       if (sourceProfiles && sourceProfiles.length == 1) {
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|         this._selectedProfile = sourceProfiles[0];
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|       } else {
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|         this._selectedProfile = null;
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|       }
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|     }
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|   },
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| 
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|   // 2 - [Profile Selection]
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|   onSelectProfilePageShow() {
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|     // Disabling this for now, since we ask about import sources in automigration
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|     // too and don't want to disable the back button
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|     // if (this._autoMigrate)
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|     //   document.documentElement.getButton("back").disabled = true;
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| 
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|     var profiles = document.getElementById("profiles");
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|     while (profiles.hasChildNodes()) {
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|       profiles.firstChild.remove();
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|     }
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| 
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|     // Note that this block is still reached even if the user chose 'From File'
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|     // and we canceled the dialog.  When that happens, _migrator will be null.
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|     if (this._migrator) {
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|       var sourceProfiles = this.spinResolve(this._migrator.getSourceProfiles());
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| 
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|       for (let profile of sourceProfiles) {
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|         var item = document.createXULElement("radio");
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|         item.id = profile.id;
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|         item.setAttribute("label", profile.name);
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|         profiles.appendChild(item);
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|       }
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|     }
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| 
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|     profiles.selectedItem = this._selectedProfile
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|       ? document.getElementById(this._selectedProfile.id)
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|       : profiles.firstChild;
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|   },
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| 
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|   onSelectProfilePageRewound() {
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|     var profiles = document.getElementById("profiles");
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|     let sourceProfiles = this.spinResolve(this._migrator.getSourceProfiles());
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|     this._selectedProfile =
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|       sourceProfiles.find(profile => profile.id == profiles.selectedItem.id) ||
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|       null;
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|   },
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| 
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|   onSelectProfilePageAdvanced() {
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|     var profiles = document.getElementById("profiles");
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|     let sourceProfiles = this.spinResolve(this._migrator.getSourceProfiles());
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|     this._selectedProfile =
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|       sourceProfiles.find(profile => profile.id == profiles.selectedItem.id) ||
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|       null;
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| 
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|     // If we're automigrating or just doing bookmarks don't show the item selection page
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|     if (this._autoMigrate) {
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|       this._updateNextPageForPermissions();
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|     }
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|   },
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| 
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|   // 3 - ImportItems
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|   onImportItemsPageShow() {
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|     var dataSources = document.getElementById("dataSources");
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|     while (dataSources.hasChildNodes()) {
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|       dataSources.firstChild.remove();
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|     }
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| 
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|     var items = this.spinResolve(
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|       this._migrator.getMigrateData(this._selectedProfile)
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|     );
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| 
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|     for (let itemType of kDataToStringMap.keys()) {
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|       let itemValue = Ci.nsIBrowserProfileMigrator[itemType.toUpperCase()];
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|       if (items & itemValue) {
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|         let checkbox = document.createXULElement("checkbox");
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|         checkbox.id = itemValue;
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|         checkbox.setAttribute("native", true);
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|         document.l10n.setAttributes(
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|           checkbox,
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|           kDataToStringMap.get(itemType) + "-checkbox",
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|           { browser: this._sourceForDataLocalization }
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|         );
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|         dataSources.appendChild(checkbox);
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|         if (!this._itemsFlags || this._itemsFlags & itemValue) {
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|           checkbox.checked = true;
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|         }
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|       }
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|     }
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|   },
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| 
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|   onImportItemsPageRewound() {
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|     this._wiz.canAdvance = true;
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|     this.onImportItemsPageAdvanced();
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|   },
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| 
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|   onImportItemsPageAdvanced() {
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|     var dataSources = document.getElementById("dataSources");
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|     this._itemsFlags = 0;
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|     for (var i = 0; i < dataSources.childNodes.length; ++i) {
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|       var checkbox = dataSources.childNodes[i];
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|       if (checkbox.localName == "checkbox" && checkbox.checked) {
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|         this._itemsFlags |= parseInt(checkbox.id);
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|       }
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|     }
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| 
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|     this._updateNextPageForPermissions();
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|   },
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| 
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|   onImportItemCommand() {
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|     var items = document.getElementById("dataSources");
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|     var checkboxes = items.getElementsByTagName("checkbox");
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| 
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|     var oneChecked = false;
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|     for (var i = 0; i < checkboxes.length; ++i) {
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|       if (checkboxes[i].checked) {
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|         oneChecked = true;
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|         break;
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|       }
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|     }
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| 
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|     this._wiz.canAdvance = oneChecked;
 | |
| 
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|     this._updateNextPageForPermissions();
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|   },
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| 
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|   _updateNextPageForPermissions() {
 | |
|     // We would like to just go straight to work:
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|     this._wiz.currentPage.next = "migrating";
 | |
|     // If we already have permissions, this is easy:
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|     if (this._receivedPermissions.has(this._source)) {
 | |
|       return;
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|     }
 | |
| 
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|     // Otherwise, if we're on mojave or later and importing from
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|     // Safari, prompt for the bookmarks file.
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|     // We may add other browser/OS combos here in future.
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|     if (
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|       this._source == "safari" &&
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|       AppConstants.isPlatformAndVersionAtLeast("macosx", "18") &&
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|       this._itemsFlags & MigrationUtils.resourceTypes.BOOKMARKS
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|     ) {
 | |
|       let migrator = this._migrator.wrappedJSObject;
 | |
|       let havePermissions = this.spinResolve(migrator.hasPermissions());
 | |
| 
 | |
|       if (!havePermissions) {
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|         this._wiz.currentPage.next = "importPermissions";
 | |
|       }
 | |
|     }
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|   },
 | |
| 
 | |
|   // 3b: permissions. This gets invoked when the user clicks "Next"
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|   async onImportPermissionsPageAdvanced(event) {
 | |
|     // We're done if we have permission:
 | |
|     if (this._receivedPermissions.has(this._source)) {
 | |
|       return;
 | |
|     }
 | |
|     // The wizard helper is sync, and we need to check some stuff, so just stop
 | |
|     // advancing for now and prompt the user, then advance the wizard if everything
 | |
|     // worked.
 | |
|     event.preventDefault();
 | |
| 
 | |
|     let migrator = this._migrator.wrappedJSObject;
 | |
|     await migrator.getPermissions(window);
 | |
|     if (await migrator.hasPermissions()) {
 | |
|       this._receivedPermissions.add(this._source);
 | |
|       // Re-enter (we'll then allow the advancement through the early return above)
 | |
|       this._wiz.advance();
 | |
|     }
 | |
|     // if we didn't have permissions after the `getPermissions` call, the user
 | |
|     // cancelled the dialog. Just no-op out now; the user can re-try by clicking
 | |
|     // the 'Continue' button again, or go back and pick a different browser.
 | |
|   },
 | |
| 
 | |
|   // 4 - Migrating
 | |
|   onMigratingPageShow() {
 | |
|     this._wiz.getButton("cancel").disabled = true;
 | |
|     this._wiz.canRewind = false;
 | |
|     this._wiz.canAdvance = false;
 | |
| 
 | |
|     // When automigrating, show all of the data that can be received from this source.
 | |
|     if (this._autoMigrate) {
 | |
|       this._itemsFlags = this.spinResolve(
 | |
|         this._migrator.getMigrateData(this._selectedProfile)
 | |
|       );
 | |
|     }
 | |
| 
 | |
|     this._listItems("migratingItems");
 | |
|     setTimeout(() => this.onMigratingMigrate(), 0);
 | |
|   },
 | |
| 
 | |
|   async onMigratingMigrate() {
 | |
|     await this._migrator.migrate(
 | |
|       this._itemsFlags,
 | |
|       this._autoMigrate,
 | |
|       this._selectedProfile
 | |
|     );
 | |
| 
 | |
|     Services.telemetry
 | |
|       .getHistogramById("FX_MIGRATION_SOURCE_BROWSER")
 | |
|       .add(MigrationUtils.getSourceIdForTelemetry(this._source));
 | |
|     if (!this._autoMigrate) {
 | |
|       let hist = Services.telemetry.getKeyedHistogramById("FX_MIGRATION_USAGE");
 | |
|       let exp = 0;
 | |
|       let items = this._itemsFlags;
 | |
|       while (items) {
 | |
|         if (items & 1) {
 | |
|           hist.add(this._source, exp);
 | |
|         }
 | |
|         items = items >> 1;
 | |
|         exp++;
 | |
|       }
 | |
|     }
 | |
|   },
 | |
| 
 | |
|   _listItems(aID) {
 | |
|     var items = document.getElementById(aID);
 | |
|     while (items.hasChildNodes()) {
 | |
|       items.firstChild.remove();
 | |
|     }
 | |
| 
 | |
|     for (let itemType of kDataToStringMap.keys()) {
 | |
|       let itemValue = Ci.nsIBrowserProfileMigrator[itemType.toUpperCase()];
 | |
|       if (this._itemsFlags & itemValue) {
 | |
|         var label = document.createXULElement("label");
 | |
|         label.id = itemValue + "_migrated";
 | |
|         try {
 | |
|           document.l10n.setAttributes(
 | |
|             label,
 | |
|             kDataToStringMap.get(itemType) + "-label",
 | |
|             { browser: this._sourceForDataLocalization }
 | |
|           );
 | |
|           items.appendChild(label);
 | |
|         } catch (e) {
 | |
|           // if the block above throws, we've enumerated all the import data types we
 | |
|           // currently support and are now just wasting time, break.
 | |
|           break;
 | |
|         }
 | |
|       }
 | |
|     }
 | |
|   },
 | |
| 
 | |
|   observe(aSubject, aTopic, aData) {
 | |
|     var label;
 | |
|     switch (aTopic) {
 | |
|       case "Migration:Started":
 | |
|         break;
 | |
|       case "Migration:ItemBeforeMigrate":
 | |
|         label = document.getElementById(aData + "_migrated");
 | |
|         if (label) {
 | |
|           label.setAttribute("style", "font-weight: bold");
 | |
|         }
 | |
|         break;
 | |
|       case "Migration:ItemAfterMigrate":
 | |
|         label = document.getElementById(aData + "_migrated");
 | |
|         if (label) {
 | |
|           label.removeAttribute("style");
 | |
|         }
 | |
|         break;
 | |
|       case "Migration:Ended":
 | |
|         if (this.isInitialMigration) {
 | |
|           // Ensure errors in reporting data recency do not affect the rest of the migration.
 | |
|           try {
 | |
|             this.reportDataRecencyTelemetry();
 | |
|           } catch (ex) {
 | |
|             Cu.reportError(ex);
 | |
|           }
 | |
|         }
 | |
|         if (this._autoMigrate) {
 | |
|           // We're done now.
 | |
|           this._wiz.canAdvance = true;
 | |
|           this._wiz.advance();
 | |
| 
 | |
|           setTimeout(close, 5000);
 | |
|         } else {
 | |
|           this._wiz.canAdvance = true;
 | |
|           var nextButton = this._wiz.getButton("next");
 | |
|           nextButton.click();
 | |
|         }
 | |
|         break;
 | |
|       case "Migration:ItemError":
 | |
|         let type = "undefined";
 | |
|         let numericType = parseInt(aData);
 | |
|         switch (numericType) {
 | |
|           case Ci.nsIBrowserProfileMigrator.COOKIES:
 | |
|             type = "cookies";
 | |
|             break;
 | |
|           case Ci.nsIBrowserProfileMigrator.HISTORY:
 | |
|             type = "history";
 | |
|             break;
 | |
|           case Ci.nsIBrowserProfileMigrator.FORMDATA:
 | |
|             type = "form data";
 | |
|             break;
 | |
|           case Ci.nsIBrowserProfileMigrator.PASSWORDS:
 | |
|             type = "passwords";
 | |
|             break;
 | |
|           case Ci.nsIBrowserProfileMigrator.BOOKMARKS:
 | |
|             type = "bookmarks";
 | |
|             break;
 | |
|           case Ci.nsIBrowserProfileMigrator.OTHERDATA:
 | |
|             type = "misc. data";
 | |
|             break;
 | |
|         }
 | |
|         Services.console.logStringMessage(
 | |
|           "some " + type + " did not successfully migrate."
 | |
|         );
 | |
|         Services.telemetry
 | |
|           .getKeyedHistogramById("FX_MIGRATION_ERRORS")
 | |
|           .add(this._source, Math.log2(numericType));
 | |
|         break;
 | |
|     }
 | |
|   },
 | |
| 
 | |
|   onDonePageShow() {
 | |
|     this._wiz.getButton("cancel").disabled = true;
 | |
|     this._wiz.canRewind = false;
 | |
|     this._listItems("doneItems");
 | |
|   },
 | |
| 
 | |
|   reportDataRecencyTelemetry() {
 | |
|     let histogram = Services.telemetry.getKeyedHistogramById(
 | |
|       "FX_STARTUP_MIGRATION_DATA_RECENCY"
 | |
|     );
 | |
|     let lastUsedPromises = [];
 | |
|     for (let [key, migrator] of this._availableMigrators) {
 | |
|       // No block-scoped let in for...of loop conditions, so get the source:
 | |
|       let localKey = key;
 | |
|       lastUsedPromises.push(
 | |
|         migrator.getLastUsedDate().then(date => {
 | |
|           const ONE_YEAR = 24 * 365;
 | |
|           let diffInHours = Math.round((Date.now() - date) / (60 * 60 * 1000));
 | |
|           if (diffInHours > ONE_YEAR) {
 | |
|             diffInHours = ONE_YEAR;
 | |
|           }
 | |
|           histogram.add(localKey, diffInHours);
 | |
|           return [localKey, diffInHours];
 | |
|         })
 | |
|       );
 | |
|     }
 | |
|     Promise.all(lastUsedPromises).then(migratorUsedTimeDiff => {
 | |
|       // Sort low to high.
 | |
|       migratorUsedTimeDiff.sort(
 | |
|         ([keyA, diffA], [keyB, diffB]) => diffA - diffB
 | |
|       ); /* eslint no-unused-vars: off */
 | |
|       let usedMostRecentBrowser =
 | |
|         migratorUsedTimeDiff.length &&
 | |
|         this._source == migratorUsedTimeDiff[0][0];
 | |
|       let usedRecentBrowser = Services.telemetry.getKeyedHistogramById(
 | |
|         "FX_STARTUP_MIGRATION_USED_RECENT_BROWSER"
 | |
|       );
 | |
|       usedRecentBrowser.add(this._source, usedMostRecentBrowser);
 | |
|     });
 | |
|   },
 | |
| };
 | 
