Update the web store promo to be clearer and configurable at run-time.

chrome/browser/extensions/default_apps.cc

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <algorithm>
-
-#include "chrome/browser/extensions/default_apps.h"
-
-#include "base/command_line.h"
-#include "base/metrics/histogram.h"
-#include "chrome/browser/prefs/pref_service.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/common/pref_names.h"
-
-const int DefaultApps::kAppsPromoCounterMax = 10;
-
-// static
-void DefaultApps::RegisterUserPrefs(PrefService* prefs) {
-  prefs->RegisterBooleanPref(prefs::kDefaultAppsInstalled, false);
-  prefs->RegisterIntegerPref(prefs::kAppsPromoCounter, 0);
-}
-
-DefaultApps::DefaultApps(PrefService* prefs,
-                         const std::string& application_locale)
-    : prefs_(prefs), application_locale_(application_locale) {
-  // Poppit, Entanglement
-  ids_.insert("mcbkbpnkkkipelfledbfocopglifcfmi");
-  ids_.insert("aciahcmjmecflokailenpkdchphgkefd");
-}
-
-DefaultApps::~DefaultApps() {}
-
-const ExtensionIdSet& DefaultApps::default_apps() const {
-  return ids_;
-}
-
-bool DefaultApps::DefaultAppSupported() {
-  // On Chrome OS the default apps are installed via a different mechanism.
-#if defined(OS_CHROMEOS)
-  return false;
-#else
-  return DefaultAppsSupportedForLanguage();
-#endif
-}
-
-bool DefaultApps::DefaultAppsSupportedForLanguage() {
-  return application_locale_ == "en-US";
-}
-
-bool DefaultApps::ShouldInstallDefaultApps(
-    const ExtensionIdSet& installed_ids) {
-  if (!DefaultAppSupported())
-    return false;
-
-  if (GetDefaultAppsInstalled())
-    return false;
-
-  // If there are any non-default apps installed, we should never try to install
-  // the default apps again, even if the non-default apps are later removed.
-  if (NonDefaultAppIsInstalled(installed_ids)) {
-    SetDefaultAppsInstalled(true);
-    return false;
-  }
-
-  return true;
-}
-
-bool DefaultApps::ShouldShowAppLauncher(const ExtensionIdSet& installed_ids) {
-  // On Chrome OS the default apps are installed via a separate mechanism that
-  // is always enabled. Therefore we always show the launcher.
-#if defined(OS_CHROME)
-  return true;
-#else
-  // The app store only supports en-us at the moment, so we don't show the apps
-  // section by default for users in other locales. But we do show it if a user
-  // from a non-supported locale somehow installs an app (eg by navigating
-  // directly to the store).
-  if (!DefaultAppsSupportedForLanguage())
-    return !installed_ids.empty();
-
-  // For supported locales, we need to wait for all the default apps to be
-  // installed before showing the apps section. We also show it if any
-  // non-default app is installed (eg because the user installed the app in a
-  // previous version of Chrome).
-  if (GetDefaultAppsInstalled() || NonDefaultAppIsInstalled(installed_ids))
-    return true;
-  else
-    return false;
-#endif
-}
-
-bool DefaultApps::ShouldShowPromo(const ExtensionIdSet& installed_ids,
-                                  bool* just_expired) {
-  *just_expired = false;
-
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kForceAppsPromoVisible)) {
-    return true;
-  }
-
-  if (!DefaultAppSupported())
-    return false;
-
-  if (!GetDefaultAppsInstalled())
-    return false;
-
-  int promo_counter = GetPromoCounter();
-  if (promo_counter <= kAppsPromoCounterMax) {
-    // If we have the exact set of default apps, show the promo. If we don't
-    // have the exact set of default apps, this means that the user manually
-    // installed or uninstalled one. The promo doesn't make sense if it shows
-    // apps the user manually installed, so expire it immediately in that
-    // situation.
-    if (ids_ != installed_ids) {
-      SetPromoHidden();
-      return false;
-    }
-
-    if (promo_counter == kAppsPromoCounterMax) {
-      *just_expired = true;
-      UMA_HISTOGRAM_ENUMERATION(extension_misc::kAppsPromoHistogram,
-                                extension_misc::PROMO_EXPIRE,
-                                extension_misc::PROMO_BUCKET_BOUNDARY);
-      SetPromoCounter(++promo_counter);
-      return false;
-    } else {
-      UMA_HISTOGRAM_ENUMERATION(extension_misc::kAppsPromoHistogram,
-                                extension_misc::PROMO_SEEN,
-                                extension_misc::PROMO_BUCKET_BOUNDARY);
-      SetPromoCounter(++promo_counter);
-      return true;
-    }
-  }
-
-  return false;
-}
-
-void DefaultApps::DidInstallApp(const ExtensionIdSet& installed_ids) {
-  // If all the default apps have been installed, stop trying to install them.
-  // Note that we use std::includes here instead of == because apps might have
-  // been manually installed while the the default apps were installing and we
-  // wouldn't want to keep trying to install them in that case.
-  if (!GetDefaultAppsInstalled() &&
-      std::includes(installed_ids.begin(), installed_ids.end(),
-                    ids_.begin(), ids_.end())) {
-    SetDefaultAppsInstalled(true);
-  }
-}
-
-bool DefaultApps::NonDefaultAppIsInstalled(
-    const ExtensionIdSet& installed_ids) const {
-  for (ExtensionIdSet::const_iterator iter = installed_ids.begin();
-       iter != installed_ids.end(); ++iter) {
-    if (ids_.find(*iter) == ids_.end())
-      return true;
-  }
-
-  return false;
-}
-
-void DefaultApps::SetPromoHidden() {
-  SetPromoCounter(kAppsPromoCounterMax + 1);
-}
-
-int DefaultApps::GetPromoCounter() const {
-  return prefs_->GetInteger(prefs::kAppsPromoCounter);
-}
-
-void DefaultApps::SetPromoCounter(int val) {
-  prefs_->SetInteger(prefs::kAppsPromoCounter, val);
-  prefs_->ScheduleSavePersistentPrefs();
-}
-
-bool DefaultApps::GetDefaultAppsInstalled() const {
-  return prefs_->GetBoolean(prefs::kDefaultAppsInstalled);
-}
-
-void DefaultApps::SetDefaultAppsInstalled(bool val) {
-  prefs_->SetBoolean(prefs::kDefaultAppsInstalled, val);
-  prefs_->ScheduleSavePersistentPrefs();
-}