ios/chrome/browser/signin/signin_manager_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_SIGNIN_MANAGER_FACTORY_H_
   6 #define IOS_CHROME_BROWSER_SIGNIN_SIGNIN_MANAGER_FACTORY_H_
   7
   8 #include "base/macros.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/observer_list.h"
  11 #include "components/keyed_service/ios/browser_state_keyed_service_factory.h"
  12
  13 template <typename T>
  14 struct DefaultSingletonTraits;
  15
  16 class SigninManagerFactoryObserver;
  17 class SigninManager;
  18 class PrefRegistrySimple;
  19
  20 namespace ios {
  21
  22 class ChromeBrowserState;
  23
  24 // Singleton that owns all SigninManagers and associates them with browser
  25 // states.
  26 class SigninManagerFactory : public BrowserStateKeyedServiceFactory {
  27  public:
  28   static SigninManager* GetForBrowserState(
  29       ios::ChromeBrowserState* browser_state);
  30   static SigninManager* GetForBrowserStateIfExists(
  31       ios::ChromeBrowserState* browser_state);
  32
  33   // Returns an instance of the SigninManagerFactory singleton.
  34   static SigninManagerFactory* GetInstance();
  35
  36   // Implementation of BrowserStateKeyedServiceFactory (public so tests
  37   // can call it).
  38   void RegisterBrowserStatePrefs(
  39       user_prefs::PrefRegistrySyncable* registry) override;
  40
  41   // Registers the browser-global prefs used by SigninManager.
  42   static void RegisterPrefs(PrefRegistrySimple* registry);
  43
  44   // Methods to register or remove observers of SigninManager creation/shutdown.
  45   void AddObserver(SigninManagerFactoryObserver* observer);
  46   void RemoveObserver(SigninManagerFactoryObserver* observer);
  47
  48   // Notifies observers of |manager|'s creation. Should be called only by test
  49   // SigninManager subclasses whose construction does not occur in
  50   // |BuildServiceInstanceFor()|.
  51   void NotifyObserversOfSigninManagerCreationForTesting(SigninManager* manager);
  52
  53  private:
  54   friend struct DefaultSingletonTraits<SigninManagerFactory>;
  55
  56   SigninManagerFactory();
  57   ~SigninManagerFactory() override;
  58
  59   // List of observers. Checks that list is empty on destruction.
  60   mutable base::ObserverList<SigninManagerFactoryObserver, true> observer_list_;
  61
  62   // BrowserStateKeyedServiceFactory:
  63   scoped_ptr<KeyedService> BuildServiceInstanceFor(
  64       web::BrowserState* context) const override;
  65   void BrowserStateShutdown(web::BrowserState* context) override;
  66 };
  67 }
  68
  69 #endif  // IOS_CHROME_BROWSER_SIGNIN_SIGNIN_MANAGER_FACTORY_H_