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      1 // Copyright 2014 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 CHROME_BROWSER_INVALIDATION_PROFILE_INVALIDATION_PROVIDER_FACTORY_H_
      6 #define CHROME_BROWSER_INVALIDATION_PROFILE_INVALIDATION_PROVIDER_FACTORY_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "base/memory/singleton.h"
     10 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
     11 
     12 namespace user_prefs {
     13 class PrefRegistrySyncable;
     14 }
     15 
     16 namespace syncer {
     17 class Invalidator;
     18 }
     19 
     20 class Profile;
     21 
     22 namespace invalidation {
     23 
     24 class ProfileInvalidationProvider;
     25 
     26 // A BrowserContextKeyedServiceFactory to construct InvalidationServices wrapped
     27 // in ProfileInvalidationProviders. The implementation of InvalidationService
     28 // may be completely different on different platforms; this class should help to
     29 // hide this complexity. It also exposes some factory methods that are useful
     30 // for setting up tests that rely on invalidations.
     31 class ProfileInvalidationProviderFactory
     32     : public BrowserContextKeyedServiceFactory {
     33  public:
     34   // Returns the ProfileInvalidationProvider for the given |profile|, lazily
     35   // creating one first if required. If |profile| does not support invalidation
     36   // (Chrome OS login profile, Chrome OS guest), returns NULL instead.
     37   static ProfileInvalidationProvider* GetForProfile(Profile* profile);
     38 
     39   static ProfileInvalidationProviderFactory* GetInstance();
     40 
     41   // Switches service creation to go through |testing_factory| for all browser
     42   // contexts.
     43   void RegisterTestingFactory(TestingFactoryFunction testing_factory);
     44 
     45  private:
     46   friend class ProfileInvalidationProviderFactoryTestBase;
     47   friend struct DefaultSingletonTraits<ProfileInvalidationProviderFactory>;
     48 
     49   ProfileInvalidationProviderFactory();
     50   virtual ~ProfileInvalidationProviderFactory();
     51 
     52   // BrowserContextKeyedServiceFactory:
     53   virtual KeyedService* BuildServiceInstanceFor(
     54       content::BrowserContext* context) const OVERRIDE;
     55   virtual void RegisterProfilePrefs(
     56       user_prefs::PrefRegistrySyncable* registry) OVERRIDE;
     57 
     58   TestingFactoryFunction testing_factory_;
     59 
     60   DISALLOW_COPY_AND_ASSIGN(ProfileInvalidationProviderFactory);
     61 };
     62 
     63 }  // namespace invalidation
     64 
     65 #endif  // CHROME_BROWSER_INVALIDATION_PROFILE_INVALIDATION_PROVIDER_FACTORY_H_
     66