michael@0: // -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0: 
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: // This UI is only opened from the Extension Manager when the app is upgraded.
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: const PREF_UPDATE_EXTENSIONS_ENABLED            = "extensions.update.enabled";
michael@0: const PREF_XPINSTALL_ENABLED                    = "xpinstall.enabled";
michael@0: const PREF_EM_HOTFIX_ID                         = "extensions.hotfix.id";
michael@0: 
michael@0: // timeout (in milliseconds) to wait for response to the metadata ping
michael@0: const METADATA_TIMEOUT    = 30000;
michael@0: 
michael@0: Components.utils.import("resource://gre/modules/Services.jsm");
michael@0: Components.utils.import("resource://gre/modules/AddonManager.jsm");
michael@0: Components.utils.import("resource://gre/modules/addons/AddonRepository.jsm");
michael@0: 
michael@0: Components.utils.import("resource://gre/modules/Log.jsm");
michael@0: let logger = Log.repository.getLogger("addons.update-dialog");
michael@0: 
michael@0: var gUpdateWizard = {
michael@0:   // When synchronizing app compatibility info this contains all installed
michael@0:   // add-ons. When checking for compatible versions this contains only
michael@0:   // incompatible add-ons.
michael@0:   addons: [],
michael@0:   // Contains a list of add-ons that were disabled prior to the application
michael@0:   // upgrade.
michael@0:   inactiveAddonIDs: [],
michael@0:   // The add-ons that we found updates available for
michael@0:   addonsToUpdate: [],
michael@0:   shouldSuggestAutoChecking: false,
michael@0:   shouldAutoCheck: false,
michael@0:   xpinstallEnabled: true,
michael@0:   xpinstallLocked: false,
michael@0:   // cached AddonInstall entries for add-ons we might want to update,
michael@0:   // keyed by add-on ID
michael@0:   addonInstalls: new Map(),
michael@0:   shuttingDown: false,
michael@0:   // Count the add-ons disabled by this update, enabled/disabled by
michael@0:   // metadata checks, and upgraded.
michael@0:   disabled: 0,
michael@0:   metadataEnabled: 0,
michael@0:   metadataDisabled: 0,
michael@0:   upgraded: 0,
michael@0:   upgradeFailed: 0,
michael@0:   upgradeDeclined: 0,
michael@0: 
michael@0:   init: function gUpdateWizard_init()
michael@0:   {
michael@0:     this.inactiveAddonIDs = window.arguments[0];
michael@0: 
michael@0:     try {
michael@0:       this.shouldSuggestAutoChecking =
michael@0:         !Services.prefs.getBoolPref(PREF_UPDATE_EXTENSIONS_ENABLED);
michael@0:     }
michael@0:     catch (e) {
michael@0:     }
michael@0: 
michael@0:     try {
michael@0:       this.xpinstallEnabled = Services.prefs.getBoolPref(PREF_XPINSTALL_ENABLED);
michael@0:       this.xpinstallLocked = Services.prefs.prefIsLocked(PREF_XPINSTALL_ENABLED);
michael@0:     }
michael@0:     catch (e) {
michael@0:     }
michael@0: 
michael@0:     if (Services.io.offline)
michael@0:       document.documentElement.currentPage = document.getElementById("offline");
michael@0:     else
michael@0:       document.documentElement.currentPage = document.getElementById("versioninfo");
michael@0:   },
michael@0: 
michael@0:   onWizardFinish: function gUpdateWizard_onWizardFinish ()
michael@0:   {
michael@0:     if (this.shouldSuggestAutoChecking)
michael@0:       Services.prefs.setBoolPref(PREF_UPDATE_EXTENSIONS_ENABLED, this.shouldAutoCheck);
michael@0:   },
michael@0: 
michael@0:   _setUpButton: function gUpdateWizard_setUpButton(aButtonID, aButtonKey, aDisabled)
michael@0:   {
michael@0:     var strings = document.getElementById("updateStrings");
michael@0:     var button = document.documentElement.getButton(aButtonID);
michael@0:     if (aButtonKey) {
michael@0:       button.label = strings.getString(aButtonKey);
michael@0:       try {
michael@0:         button.setAttribute("accesskey", strings.getString(aButtonKey + "Accesskey"));
michael@0:       }
michael@0:       catch (e) {
michael@0:       }
michael@0:     }
michael@0:     button.disabled = aDisabled;
michael@0:   },
michael@0: 
michael@0:   setButtonLabels: function gUpdateWizard_setButtonLabels(aBackButton, aBackButtonIsDisabled,
michael@0:                              aNextButton, aNextButtonIsDisabled,
michael@0:                              aCancelButton, aCancelButtonIsDisabled)
michael@0:   {
michael@0:     this._setUpButton("back", aBackButton, aBackButtonIsDisabled);
michael@0:     this._setUpButton("next", aNextButton, aNextButtonIsDisabled);
michael@0:     this._setUpButton("cancel", aCancelButton, aCancelButtonIsDisabled);
michael@0:   },
michael@0: 
michael@0:   /////////////////////////////////////////////////////////////////////////////
michael@0:   // Update Errors
michael@0:   errorItems: [],
michael@0: 
michael@0:   checkForErrors: function gUpdateWizard_checkForErrors(aElementIDToShow)
michael@0:   {
michael@0:     if (this.errorItems.length > 0)
michael@0:       document.getElementById(aElementIDToShow).hidden = false;
michael@0:   },
michael@0: 
michael@0:   onWizardClose: function gUpdateWizard_onWizardClose(aEvent)
michael@0:   {
michael@0:     return this.onWizardCancel();
michael@0:   },
michael@0: 
michael@0:   onWizardCancel: function gUpdateWizard_onWizardCancel()
michael@0:   {
michael@0:     gUpdateWizard.shuttingDown = true;
michael@0:     // Allow add-ons to continue downloading and installing
michael@0:     // in the background, though some may require a later restart
michael@0:     // Pages that are waiting for user input go into the background
michael@0:     // on cancel
michael@0:     if (gMismatchPage.waiting) {
michael@0:       logger.info("Dialog closed in mismatch page");
michael@0:       if (gUpdateWizard.addonInstalls.size > 0) {
michael@0:         gInstallingPage.startInstalls([i for ([, i] of gUpdateWizard.addonInstalls)]);
michael@0:       }
michael@0:       return true;
michael@0:     }
michael@0: 
michael@0:     // Pages that do asynchronous things will just keep running and check
michael@0:     // gUpdateWizard.shuttingDown to trigger background behaviour
michael@0:     if (!gInstallingPage.installing) {
michael@0:       logger.info("Dialog closed while waiting for updated compatibility information");
michael@0:     }
michael@0:     else {
michael@0:       logger.info("Dialog closed while downloading and installing updates");
michael@0:     }
michael@0:     return true;
michael@0:   }
michael@0: };
michael@0: 
michael@0: var gOfflinePage = {
michael@0:   onPageAdvanced: function gOfflinePage_onPageAdvanced()
michael@0:   {
michael@0:     Services.io.offline = false;
michael@0:     return true;
michael@0:   },
michael@0: 
michael@0:   toggleOffline: function gOfflinePage_toggleOffline()
michael@0:   {
michael@0:     var nextbtn = document.documentElement.getButton("next");
michael@0:     nextbtn.disabled = !nextbtn.disabled;
michael@0:   }
michael@0: }
michael@0: 
michael@0: // Addon listener to count addons enabled/disabled by metadata checks
michael@0: let listener = {
michael@0:   onDisabled: function listener_onDisabled(aAddon) {
michael@0:     logger.debug("onDisabled for ${id}", aAddon);
michael@0:     gUpdateWizard.metadataDisabled++;
michael@0:   },
michael@0:   onEnabled: function listener_onEnabled(aAddon) {
michael@0:     logger.debug("onEnabled for ${id}", aAddon);
michael@0:     gUpdateWizard.metadataEnabled++;
michael@0:   }
michael@0: };
michael@0: 
michael@0: var gVersionInfoPage = {
michael@0:   _completeCount: 0,
michael@0:   _totalCount: 0,
michael@0:   _versionInfoDone: false,
michael@0:   onPageShow: function gVersionInfoPage_onPageShow()
michael@0:   {
michael@0:     gUpdateWizard.setButtonLabels(null, true,
michael@0:                                   "nextButtonText", true,
michael@0:                                   "cancelButtonText", false);
michael@0: 
michael@0:     try {
michael@0:       var hotfixID = Services.prefs.getCharPref(PREF_EM_HOTFIX_ID);
michael@0:     }
michael@0:     catch (e) { }
michael@0: 
michael@0:     // Retrieve all add-ons in order to sync their app compatibility information
michael@0:     AddonManager.getAllAddons(function gVersionInfoPage_getAllAddons(aAddons) {
michael@0:       if (gUpdateWizard.shuttingDown) {
michael@0:         logger.debug("getAllAddons completed after dialog closed");
michael@0:       }
michael@0: 
michael@0:       gUpdateWizard.addons = [a for (a of aAddons)
michael@0:                                if (a.type != "plugin" && a.id != hotfixID)];
michael@0: 
michael@0:       gVersionInfoPage._totalCount = gUpdateWizard.addons.length;
michael@0: 
michael@0:       // Count the add-ons newly disabled by this application update
michael@0:       for (let addon of gUpdateWizard.addons) {
michael@0:         if (gUpdateWizard.inactiveAddonIDs.indexOf(addon.id) != -1) {
michael@0:           gUpdateWizard.disabled++;
michael@0:         }
michael@0:       }
michael@0: 
michael@0:       // Ensure compatibility overrides are up to date before checking for
michael@0:       // individual addon updates.
michael@0:       let ids = [addon.id for (addon of gUpdateWizard.addons)];
michael@0: 
michael@0:       // Do the metadata ping, listening for any newly enabled/disabled add-ons.
michael@0:       AddonManager.addAddonListener(listener);
michael@0:       AddonRepository.repopulateCache(ids, function gVersionInfoPage_repopulateCache() {
michael@0: 
michael@0:         if (gUpdateWizard.shuttingDown) {
michael@0:           logger.debug("repopulateCache completed after dialog closed");
michael@0:         }
michael@0: 
michael@0:         for (let addon of gUpdateWizard.addons) {
michael@0:           logger.debug("VersionInfo Finding updates for " + addon.id);
michael@0:           addon.findUpdates(gVersionInfoPage, AddonManager.UPDATE_WHEN_NEW_APP_INSTALLED);
michael@0:         }
michael@0:       }, METADATA_TIMEOUT);
michael@0:     });
michael@0:   },
michael@0: 
michael@0:   onAllUpdatesFinished: function gVersionInfoPage_onAllUpdatesFinished() {
michael@0:     AddonManager.removeAddonListener(listener);
michael@0:     AddonManagerPrivate.recordSimpleMeasure("appUpdate_disabled",
michael@0:         gUpdateWizard.disabled);
michael@0:     AddonManagerPrivate.recordSimpleMeasure("appUpdate_metadata_enabled",
michael@0:         gUpdateWizard.metadataEnabled);
michael@0:     AddonManagerPrivate.recordSimpleMeasure("appUpdate_metadata_disabled",
michael@0:         gUpdateWizard.metadataDisabled);
michael@0:     // Record 0 for these here in case we exit early; values will be replaced
michael@0:     // later if we actually upgrade any.
michael@0:     AddonManagerPrivate.recordSimpleMeasure("appUpdate_upgraded", 0);
michael@0:     AddonManagerPrivate.recordSimpleMeasure("appUpdate_upgradeFailed", 0);
michael@0:     AddonManagerPrivate.recordSimpleMeasure("appUpdate_upgradeDeclined", 0);
michael@0:     // Filter out any add-ons that were disabled before the application was
michael@0:     // upgraded or are already compatible
michael@0:     logger.debug("VersionInfo updates finished: inactive " +
michael@0:          gUpdateWizard.inactiveAddonIDs.toSource() + " found " +
michael@0:          [addon.id + ":" + addon.appDisabled for (addon of gUpdateWizard.addons)].toSource());
michael@0:     let filteredAddons = [];
michael@0:     for (let a of gUpdateWizard.addons) {
michael@0:       if (a.appDisabled && gUpdateWizard.inactiveAddonIDs.indexOf(a.id) < 0) {
michael@0:         logger.debug("Continuing with add-on " + a.id);
michael@0:         filteredAddons.push(a);
michael@0:       }
michael@0:       else if (gUpdateWizard.addonInstalls.has(a.id)) {
michael@0:         gUpdateWizard.addonInstalls.get(a.id).cancel();
michael@0:         gUpdateWizard.addonInstalls.delete(a.id);
michael@0:       }
michael@0:     }
michael@0:     gUpdateWizard.addons = filteredAddons;
michael@0: 
michael@0:     if (gUpdateWizard.shuttingDown) {
michael@0:       // jump directly to updating auto-update add-ons in the background
michael@0:       if (gUpdateWizard.addonInstalls.size > 0) {
michael@0:         gInstallingPage.startInstalls([i for ([, i] of gUpdateWizard.addonInstalls)]);
michael@0:       }
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     if (filteredAddons.length > 0) {
michael@0:       if (!gUpdateWizard.xpinstallEnabled && gUpdateWizard.xpinstallLocked) {
michael@0:         document.documentElement.currentPage = document.getElementById("adminDisabled");
michael@0:         return;
michael@0:       }
michael@0:       document.documentElement.currentPage = document.getElementById("mismatch");
michael@0:     }
michael@0:     else {
michael@0:       logger.info("VersionInfo: No updates require further action");
michael@0:       // VersionInfo compatibility updates resolved all compatibility problems,
michael@0:       // close this window and continue starting the application...
michael@0:       //XXX Bug 314754 - We need to use setTimeout to close the window due to
michael@0:       // the EM using xmlHttpRequest when checking for updates.
michael@0:       setTimeout(close, 0);
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   /////////////////////////////////////////////////////////////////////////////
michael@0:   // UpdateListener
michael@0:   onUpdateFinished: function gVersionInfoPage_onUpdateFinished(aAddon, status) {
michael@0:     ++this._completeCount;
michael@0: 
michael@0:     if (status != AddonManager.UPDATE_STATUS_NO_ERROR) {
michael@0:       logger.debug("VersionInfo update " + this._completeCount + " of " + this._totalCount +
michael@0:            " failed for " + aAddon.id + ": " + status);
michael@0:       gUpdateWizard.errorItems.push(aAddon);
michael@0:     }
michael@0:     else {
michael@0:       logger.debug("VersionInfo update " + this._completeCount + " of " + this._totalCount +
michael@0:            " finished for " + aAddon.id);
michael@0:     }
michael@0: 
michael@0:     // If we're not in the background, just make a list of add-ons that have
michael@0:     // updates available
michael@0:     if (!gUpdateWizard.shuttingDown) {
michael@0:       // If we're still in the update check window and the add-on is now active
michael@0:       // then it won't have been disabled by startup
michael@0:       if (aAddon.active) {
michael@0:         AddonManagerPrivate.removeStartupChange("disabled", aAddon.id);
michael@0:         gUpdateWizard.metadataEnabled++;
michael@0:       }
michael@0: 
michael@0:       // Update the status text and progress bar
michael@0:       var updateStrings = document.getElementById("updateStrings");
michael@0:       var statusElt = document.getElementById("versioninfo.status");
michael@0:       var statusString = updateStrings.getFormattedString("statusPrefix", [aAddon.name]);
michael@0:       statusElt.setAttribute("value", statusString);
michael@0: 
michael@0:       // Update the status text and progress bar
michael@0:       var progress = document.getElementById("versioninfo.progress");
michael@0:       progress.mode = "normal";
michael@0:       progress.value = Math.ceil((this._completeCount / this._totalCount) * 100);
michael@0:     }
michael@0: 
michael@0:     if (this._completeCount == this._totalCount)
michael@0:       this.onAllUpdatesFinished();
michael@0:   },
michael@0: 
michael@0:   onUpdateAvailable: function gVersionInfoPage_onUpdateAvailable(aAddon, aInstall) {
michael@0:     logger.debug("VersionInfo got an install for " + aAddon.id + ": " + aAddon.version);
michael@0:     gUpdateWizard.addonInstalls.set(aAddon.id, aInstall);
michael@0:   },
michael@0: };
michael@0: 
michael@0: var gMismatchPage = {
michael@0:   waiting: false,
michael@0: 
michael@0:   onPageShow: function gMismatchPage_onPageShow()
michael@0:   {
michael@0:     gMismatchPage.waiting = true;
michael@0:     gUpdateWizard.setButtonLabels(null, true,
michael@0:                                   "mismatchCheckNow", false,
michael@0:                                   "mismatchDontCheck", false);
michael@0:     document.documentElement.getButton("next").focus();
michael@0: 
michael@0:     var incompatible = document.getElementById("mismatch.incompatible");
michael@0:     for (let addon of gUpdateWizard.addons) {
michael@0:       var listitem = document.createElement("listitem");
michael@0:       listitem.setAttribute("label", addon.name + " " + addon.version);
michael@0:       incompatible.appendChild(listitem);
michael@0:     }
michael@0:   }
michael@0: };
michael@0: 
michael@0: var gUpdatePage = {
michael@0:   _totalCount: 0,
michael@0:   _completeCount: 0,
michael@0:   onPageShow: function gUpdatePage_onPageShow()
michael@0:   {
michael@0:     gMismatchPage.waiting = false;
michael@0:     gUpdateWizard.setButtonLabels(null, true,
michael@0:                                   "nextButtonText", true,
michael@0:                                   "cancelButtonText", false);
michael@0:     document.documentElement.getButton("next").focus();
michael@0: 
michael@0:     gUpdateWizard.errorItems = [];
michael@0: 
michael@0:     this._totalCount = gUpdateWizard.addons.length;
michael@0:     for (let addon of gUpdateWizard.addons) {
michael@0:       logger.debug("UpdatePage requesting update for " + addon.id);
michael@0:       // Redundant call to find updates again here when we already got them
michael@0:       // in the VersionInfo page: https://bugzilla.mozilla.org/show_bug.cgi?id=960597
michael@0:       addon.findUpdates(this, AddonManager.UPDATE_WHEN_NEW_APP_INSTALLED);
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   onAllUpdatesFinished: function gUpdatePage_onAllUpdatesFinished() {
michael@0:     if (gUpdateWizard.shuttingDown)
michael@0:       return;
michael@0: 
michael@0:     var nextPage = document.getElementById("noupdates");
michael@0:     if (gUpdateWizard.addonsToUpdate.length > 0)
michael@0:       nextPage = document.getElementById("found");
michael@0:     document.documentElement.currentPage = nextPage;
michael@0:   },
michael@0: 
michael@0:   /////////////////////////////////////////////////////////////////////////////
michael@0:   // UpdateListener
michael@0:   onUpdateAvailable: function gUpdatePage_onUpdateAvailable(aAddon, aInstall) {
michael@0:     logger.debug("UpdatePage got an update for " + aAddon.id + ": " + aAddon.version);
michael@0:     gUpdateWizard.addonsToUpdate.push(aInstall);
michael@0:   },
michael@0: 
michael@0:   onUpdateFinished: function gUpdatePage_onUpdateFinished(aAddon, status) {
michael@0:     if (status != AddonManager.UPDATE_STATUS_NO_ERROR)
michael@0:       gUpdateWizard.errorItems.push(aAddon);
michael@0: 
michael@0:     ++this._completeCount;
michael@0: 
michael@0:     if (!gUpdateWizard.shuttingDown) {
michael@0:       // Update the status text and progress bar
michael@0:       var updateStrings = document.getElementById("updateStrings");
michael@0:       var statusElt = document.getElementById("checking.status");
michael@0:       var statusString = updateStrings.getFormattedString("statusPrefix", [aAddon.name]);
michael@0:       statusElt.setAttribute("value", statusString);
michael@0: 
michael@0:       var progress = document.getElementById("checking.progress");
michael@0:       progress.value = Math.ceil((this._completeCount / this._totalCount) * 100);
michael@0:     }
michael@0: 
michael@0:     if (this._completeCount == this._totalCount)
michael@0:       this.onAllUpdatesFinished()
michael@0:   },
michael@0: };
michael@0: 
michael@0: var gFoundPage = {
michael@0:   onPageShow: function gFoundPage_onPageShow()
michael@0:   {
michael@0:     gUpdateWizard.setButtonLabels(null, true,
michael@0:                                   "installButtonText", false,
michael@0:                                   null, false);
michael@0: 
michael@0:     var foundUpdates = document.getElementById("found.updates");
michael@0:     var itemCount = gUpdateWizard.addonsToUpdate.length;
michael@0:     for (let install of gUpdateWizard.addonsToUpdate) {
michael@0:       let listItem = foundUpdates.appendItem(install.name + " " + install.version);
michael@0:       listItem.setAttribute("type", "checkbox");
michael@0:       listItem.setAttribute("checked", "true");
michael@0:       listItem.install = install;
michael@0:     }
michael@0: 
michael@0:     if (!gUpdateWizard.xpinstallEnabled) {
michael@0:       document.getElementById("xpinstallDisabledAlert").hidden = false;
michael@0:       document.getElementById("enableXPInstall").focus();
michael@0:       document.documentElement.getButton("next").disabled = true;
michael@0:     }
michael@0:     else {
michael@0:       document.documentElement.getButton("next").focus();
michael@0:       document.documentElement.getButton("next").disabled = false;
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   toggleXPInstallEnable: function gFoundPage_toggleXPInstallEnable(aEvent)
michael@0:   {
michael@0:     var enabled = aEvent.target.checked;
michael@0:     gUpdateWizard.xpinstallEnabled = enabled;
michael@0:     var pref = Components.classes["@mozilla.org/preferences-service;1"]
michael@0:                          .getService(Components.interfaces.nsIPrefBranch);
michael@0:     pref.setBoolPref(PREF_XPINSTALL_ENABLED, enabled);
michael@0:     this.updateNextButton();
michael@0:   },
michael@0: 
michael@0:   updateNextButton: function gFoundPage_updateNextButton()
michael@0:   {
michael@0:     if (!gUpdateWizard.xpinstallEnabled) {
michael@0:       document.documentElement.getButton("next").disabled = true;
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     var oneChecked = false;
michael@0:     var foundUpdates = document.getElementById("found.updates");
michael@0:     var updates = foundUpdates.getElementsByTagName("listitem");
michael@0:     for (let update of updates) {
michael@0:       if (!update.checked)
michael@0:         continue;
michael@0:       oneChecked = true;
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:     gUpdateWizard.setButtonLabels(null, true,
michael@0:                                   "installButtonText", true,
michael@0:                                   null, false);
michael@0:     document.getElementById("found").setAttribute("next", "installing");
michael@0:     document.documentElement.getButton("next").disabled = !oneChecked;
michael@0:   }
michael@0: };
michael@0: 
michael@0: var gInstallingPage = {
michael@0:   _installs         : [],
michael@0:   _errors           : [],
michael@0:   _strings          : null,
michael@0:   _currentInstall   : -1,
michael@0:   _installing       : false,
michael@0: 
michael@0:   // Initialize fields we need for installing and tracking progress,
michael@0:   // and start iterating through the installations
michael@0:   startInstalls: function gInstallingPage_startInstalls(aInstallList) {
michael@0:     if (!gUpdateWizard.xpinstallEnabled) {
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     logger.debug("Start installs for "
michael@0:                  + [i.existingAddon.id for (i of aInstallList)].toSource());
michael@0:     this._errors = [];
michael@0:     this._installs = aInstallList;
michael@0:     this._installing = true;
michael@0:     this.startNextInstall();
michael@0:   },
michael@0: 
michael@0:   onPageShow: function gInstallingPage_onPageShow()
michael@0:   {
michael@0:     gUpdateWizard.setButtonLabels(null, true,
michael@0:                                   "nextButtonText", true,
michael@0:                                   null, true);
michael@0: 
michael@0:     var foundUpdates = document.getElementById("found.updates");
michael@0:     var updates = foundUpdates.getElementsByTagName("listitem");
michael@0:     let toInstall = [];
michael@0:     for (let update of updates) {
michael@0:       if (!update.checked) {
michael@0:         logger.info("User chose to cancel update of " + update.label);
michael@0:         gUpdateWizard.upgradeDeclined++;
michael@0:         update.install.cancel();
michael@0:         continue;
michael@0:       }
michael@0:       toInstall.push(update.install);
michael@0:     }
michael@0:     this._strings = document.getElementById("updateStrings");
michael@0: 
michael@0:     this.startInstalls(toInstall);
michael@0:   },
michael@0: 
michael@0:   startNextInstall: function gInstallingPage_startNextInstall() {
michael@0:     if (this._currentInstall >= 0) {
michael@0:       this._installs[this._currentInstall].removeListener(this);
michael@0:     }
michael@0: 
michael@0:     this._currentInstall++;
michael@0: 
michael@0:     if (this._installs.length == this._currentInstall) {
michael@0:       Services.obs.notifyObservers(null, "TEST:all-updates-done", null);
michael@0:       AddonManagerPrivate.recordSimpleMeasure("appUpdate_upgraded",
michael@0:           gUpdateWizard.upgraded);
michael@0:       AddonManagerPrivate.recordSimpleMeasure("appUpdate_upgradeFailed",
michael@0:           gUpdateWizard.upgradeFailed);
michael@0:       AddonManagerPrivate.recordSimpleMeasure("appUpdate_upgradeDeclined",
michael@0:           gUpdateWizard.upgradeDeclined);
michael@0:       this._installing = false;
michael@0:       if (gUpdateWizard.shuttingDown) {
michael@0:         return;
michael@0:       }
michael@0:       var nextPage = this._errors.length > 0 ? "installerrors" : "finished";
michael@0:       document.getElementById("installing").setAttribute("next", nextPage);
michael@0:       document.documentElement.advance();
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     let install = this._installs[this._currentInstall];
michael@0: 
michael@0:     if (gUpdateWizard.shuttingDown && !AddonManager.shouldAutoUpdate(install.existingAddon)) {
michael@0:       logger.debug("Don't update " + install.existingAddon.id + " in background");
michael@0:       gUpdateWizard.upgradeDeclined++;
michael@0:       install.cancel();
michael@0:       this.startNextInstall();
michael@0:       return;
michael@0:     }
michael@0:     install.addListener(this);
michael@0:     install.install();
michael@0:   },
michael@0: 
michael@0:   /////////////////////////////////////////////////////////////////////////////
michael@0:   // InstallListener
michael@0:   onDownloadStarted: function gInstallingPage_onDownloadStarted(aInstall) {
michael@0:     if (gUpdateWizard.shuttingDown) {
michael@0:       return;
michael@0:     }
michael@0:     var strings = document.getElementById("updateStrings");
michael@0:     var label = strings.getFormattedString("downloadingPrefix", [aInstall.name]);
michael@0:     var actionItem = document.getElementById("actionItem");
michael@0:     actionItem.value = label;
michael@0:   },
michael@0: 
michael@0:   onDownloadProgress: function gInstallingPage_onDownloadProgress(aInstall) {
michael@0:     if (gUpdateWizard.shuttingDown) {
michael@0:       return;
michael@0:     }
michael@0:     var downloadProgress = document.getElementById("downloadProgress");
michael@0:     downloadProgress.value = Math.ceil(100 * aInstall.progress / aInstall.maxProgress);
michael@0:   },
michael@0: 
michael@0:   onDownloadEnded: function gInstallingPage_onDownloadEnded(aInstall) {
michael@0:   },
michael@0: 
michael@0:   onDownloadFailed: function gInstallingPage_onDownloadFailed(aInstall) {
michael@0:     this._errors.push(aInstall);
michael@0: 
michael@0:     gUpdateWizard.upgradeFailed++;
michael@0:     this.startNextInstall();
michael@0:   },
michael@0: 
michael@0:   onInstallStarted: function gInstallingPage_onInstallStarted(aInstall) {
michael@0:     if (gUpdateWizard.shuttingDown) {
michael@0:       return;
michael@0:     }
michael@0:     var strings = document.getElementById("updateStrings");
michael@0:     var label = strings.getFormattedString("installingPrefix", [aInstall.name]);
michael@0:     var actionItem = document.getElementById("actionItem");
michael@0:     actionItem.value = label;
michael@0:   },
michael@0: 
michael@0:   onInstallEnded: function gInstallingPage_onInstallEnded(aInstall, aAddon) {
michael@0:     if (!gUpdateWizard.shuttingDown) {
michael@0:       // Remember that this add-on was updated during startup
michael@0:       AddonManagerPrivate.addStartupChange(AddonManager.STARTUP_CHANGE_CHANGED,
michael@0:                                            aAddon.id);
michael@0:     }
michael@0: 
michael@0:     gUpdateWizard.upgraded++;
michael@0:     this.startNextInstall();
michael@0:   },
michael@0: 
michael@0:   onInstallFailed: function gInstallingPage_onInstallFailed(aInstall) {
michael@0:     this._errors.push(aInstall);
michael@0: 
michael@0:     gUpdateWizard.upgradeFailed++;
michael@0:     this.startNextInstall();
michael@0:   }
michael@0: };
michael@0: 
michael@0: var gInstallErrorsPage = {
michael@0:   onPageShow: function gInstallErrorsPage_onPageShow()
michael@0:   {
michael@0:     gUpdateWizard.setButtonLabels(null, true, null, true, null, true);
michael@0:     document.documentElement.getButton("finish").focus();
michael@0:   },
michael@0: };
michael@0: 
michael@0: // Displayed when there are incompatible add-ons and the xpinstall.enabled
michael@0: // pref is false and locked.
michael@0: var gAdminDisabledPage = {
michael@0:   onPageShow: function gAdminDisabledPage_onPageShow()
michael@0:   {
michael@0:     gUpdateWizard.setButtonLabels(null, true, null, true,
michael@0:                                   "cancelButtonText", true);
michael@0:     document.documentElement.getButton("finish").focus();
michael@0:   }
michael@0: };
michael@0: 
michael@0: // Displayed when selected add-on updates have been installed without error.
michael@0: // There can still be add-ons that are not compatible and don't have an update.
michael@0: var gFinishedPage = {
michael@0:   onPageShow: function gFinishedPage_onPageShow()
michael@0:   {
michael@0:     gUpdateWizard.setButtonLabels(null, true, null, true, null, true);
michael@0:     document.documentElement.getButton("finish").focus();
michael@0: 
michael@0:     if (gUpdateWizard.shouldSuggestAutoChecking) {
michael@0:       document.getElementById("finishedCheckDisabled").hidden = false;
michael@0:       gUpdateWizard.shouldAutoCheck = true;
michael@0:     }
michael@0:     else
michael@0:       document.getElementById("finishedCheckEnabled").hidden = false;
michael@0: 
michael@0:     document.documentElement.getButton("finish").focus();
michael@0:   }
michael@0: };
michael@0: 
michael@0: // Displayed when there are incompatible add-ons and there are no available
michael@0: // updates.
michael@0: var gNoUpdatesPage = {
michael@0:   onPageShow: function gNoUpdatesPage_onPageLoad(aEvent)
michael@0:   {
michael@0:     gUpdateWizard.setButtonLabels(null, true, null, true, null, true);
michael@0:     if (gUpdateWizard.shouldSuggestAutoChecking) {
michael@0:       document.getElementById("noupdatesCheckDisabled").hidden = false;
michael@0:       gUpdateWizard.shouldAutoCheck = true;
michael@0:     }
michael@0:     else
michael@0:       document.getElementById("noupdatesCheckEnabled").hidden = false;
michael@0: 
michael@0:     gUpdateWizard.checkForErrors("updateCheckErrorNotFound");
michael@0:     document.documentElement.getButton("finish").focus();
michael@0:   }
michael@0: };