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// Copyright 2017 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.
#ifndef CHROME_BROWSER_SIGNIN_IDENTITY_MANAGER_FACTORY_H_
#define CHROME_BROWSER_SIGNIN_IDENTITY_MANAGER_FACTORY_H_
#include <memory>
#include <string>
#include "base/memory/singleton.h"
#include "base/observer_list.h"
#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
namespace identity {
class IdentityManager;
}
class Profile;
// Singleton that owns all IdentityManager instances and associates them with
// Profiles.
class IdentityManagerFactory : public BrowserContextKeyedServiceFactory {
public:
class Observer : public base::CheckedObserver {
public:
// Called when a IdentityManager instance is created.
virtual void IdentityManagerCreated(
identity::IdentityManager* identity_manager) {}
// Called when a IdentityManager instance is being shut down. Observers
// of |identity_manager| should remove themselves at this point.
virtual void IdentityManagerShutdown(
identity::IdentityManager* identity_manager) {}
protected:
~Observer() override {}
};
static identity::IdentityManager* GetForProfile(Profile* profile);
static identity::IdentityManager* GetForProfileIfExists(
const Profile* profile);
// Returns an instance of the IdentityManagerFactory singleton.
static IdentityManagerFactory* GetInstance();
// Ensures that IdentityManagerFactory and the factories on which it depends
// are built.
static void EnsureFactoryAndDependeeFactoriesBuilt();
// Methods to register or remove observers of IdentityManager
// creation/shutdown.
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
private:
friend struct base::DefaultSingletonTraits<IdentityManagerFactory>;
IdentityManagerFactory();
~IdentityManagerFactory() override;
// BrowserContextKeyedServiceFactory:
KeyedService* BuildServiceInstanceFor(
content::BrowserContext* profile) const override;
void BrowserContextShutdown(content::BrowserContext* profile) override;
// List of observers. Checks that list is empty on destruction.
base::ObserverList<Observer, /*check_empty=*/true, /*allow_reentrancy=*/false>
observer_list_;
DISALLOW_COPY_AND_ASSIGN(IdentityManagerFactory);
};
#endif // CHROME_BROWSER_SIGNIN_IDENTITY_MANAGER_FACTORY_H_