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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_PRINTING_ENTERPRISE_BULK_PRINTERS_CALCULATOR_FACTORY_H_
#define CHROME_BROWSER_ASH_PRINTING_ENTERPRISE_BULK_PRINTERS_CALCULATOR_FACTORY_H_
#include <map>
#include <memory>
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
class AccountId;
namespace ash {
class BulkPrintersCalculator;
// Dispenses BulkPrintersCalculator objects based on account id or for device
// context. Access to this object should be sequenced.
class BulkPrintersCalculatorFactory {
public:
// It never returns nullptr.
static BulkPrintersCalculatorFactory* Get();
BulkPrintersCalculatorFactory();
BulkPrintersCalculatorFactory(const BulkPrintersCalculatorFactory&) = delete;
BulkPrintersCalculatorFactory& operator=(
const BulkPrintersCalculatorFactory&) = delete;
~BulkPrintersCalculatorFactory();
// Returns a WeakPtr to the BulkPrintersCalculator registered for
// |account_id|.
// If requested BulkPrintersCalculator does not exist, the object is
// created and registered. The returned object remains valid until
// RemoveForUserId or Shutdown is called. It never returns nullptr.
base::WeakPtr<BulkPrintersCalculator> GetForAccountId(
const AccountId& account_id);
// Returns a pointer to the BulkPrintersCalculator registered for the device.
// If requested BulkPrintersCalculator does not exist, the object is
// created and registered. The returned object remains valid until Shutdown is
// called. Returns nullptr if called after Shutdown or during unit tests.
base::WeakPtr<BulkPrintersCalculator> GetForDevice();
// Deletes the BulkPrintersCalculator registered for |account_id|.
void RemoveForUserId(const AccountId& account_id);
// Tear down all BulkPrintersCalculator objects.
void Shutdown();
private:
bool shutdown_ = false;
std::map<AccountId, std::unique_ptr<BulkPrintersCalculator>>
printers_by_user_;
std::unique_ptr<BulkPrintersCalculator> device_printers_;
SEQUENCE_CHECKER(sequence_checker_);
};
} // namespace ash
#endif // CHROME_BROWSER_ASH_PRINTING_ENTERPRISE_BULK_PRINTERS_CALCULATOR_FACTORY_H_
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