ios/chrome/browser/signin/account_tracker_service_factory.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef IOS_CHROME_BROWSER_SIGNIN_ACCOUNT_TRACKER_SERVICE_FACTORY_H_
   6 #define IOS_CHROME_BROWSER_SIGNIN_ACCOUNT_TRACKER_SERVICE_FACTORY_H_
   7
   8 #include "base/macros.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "components/keyed_service/ios/browser_state_keyed_service_factory.h"
  11
  12 class AccountTrackerService;
  13
  14 namespace base {
  15 template <typename T>
  16 struct DefaultSingletonTraits;
  17 }  // namespace base
  18
  19 namespace ios {
  20
  21 class ChromeBrowserState;
  22
  23 // Singleton that owns all AccountTrackerServices and associates them with
  24 // ios::ChromeBrowserState.
  25 class AccountTrackerServiceFactory : public BrowserStateKeyedServiceFactory {
  26  public:
  27   // Returns the instance of AccountTrackerService associated with this
  28   // browser state (creating one if none exists). Returns nullptr if this
  29   // browser state cannot have a AccountTrackerService (for example, if
  30   // |browser_state| is incognito).
  31   static AccountTrackerService* GetForBrowserState(
  32       ios::ChromeBrowserState* browser_state);
  33
  34   // Returns the instance of the AccountTrackerServiceFactory singleton.
  35   static AccountTrackerServiceFactory* GetInstance();
  36
  37  private:
  38   friend struct base::DefaultSingletonTraits<AccountTrackerServiceFactory>;
  39
  40   AccountTrackerServiceFactory();
  41   ~AccountTrackerServiceFactory() override;
  42
  43   // BrowserStateKeyedServiceFactory implementation.
  44   void RegisterBrowserStatePrefs(
  45       user_prefs::PrefRegistrySyncable* registry) override;
  46   scoped_ptr<KeyedService> BuildServiceInstanceFor(
  47       web::BrowserState* context) const override;
  48
  49   DISALLOW_COPY_AND_ASSIGN(AccountTrackerServiceFactory);
  50 };
  51
  52 }  // namespace ios
  53
  54 #endif  // IOS_CHROME_BROWSER_SIGNIN_ACCOUNT_TRACKER_SERVICE_FACTORY_H_