File: passwords_counter.h

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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_BROWSING_DATA_CORE_COUNTERS_PASSWORDS_COUNTER_H_
#define COMPONENTS_BROWSING_DATA_CORE_COUNTERS_PASSWORDS_COUNTER_H_

#include <memory>
#include <string>
#include <vector>

#include "base/memory/weak_ptr.h"
#include "components/browsing_data/core/counters/browsing_data_counter.h"
#include "components/browsing_data/core/counters/sync_tracker.h"
#include "components/password_manager/core/browser/password_store/password_store_consumer.h"

class PrefService;

namespace password_manager {
class PasswordStoreInterface;
}

namespace browsing_data {
class PasswordStoreFetcher;
class PasswordsCounter : public browsing_data::BrowsingDataCounter {
 public:
  // A subclass of SyncResult that stores the result value, a boolean
  // representing whether the datatype is synced, and a vector of example
  // domains where credentials would be deleted.
  class PasswordsResult : public SyncResult {
   public:
    PasswordsResult(const BrowsingDataCounter* source,
                    ResultInt profile_passwords,
                    ResultInt account_passwords,
                    bool sync_enabled,
                    std::vector<std::string> domain_examples,
                    std::vector<std::string> account_domain_examples);

    PasswordsResult(const PasswordsResult&) = delete;
    PasswordsResult& operator=(const PasswordsResult&) = delete;

    ~PasswordsResult() override;

    ResultInt account_passwords() const { return account_passwords_; }

    const std::vector<std::string>& domain_examples() const {
      return domain_examples_;
    }

    const std::vector<std::string>& account_domain_examples() const {
      return account_domain_examples_;
    }

   private:
    ResultInt account_passwords_ = 0;
    std::vector<std::string> domain_examples_;
    std::vector<std::string> account_domain_examples_;
  };

  PasswordsCounter(
      scoped_refptr<password_manager::PasswordStoreInterface> profile_store,
      scoped_refptr<password_manager::PasswordStoreInterface> account_store,
      PrefService* pref_service,
      syncer::SyncService* sync_service);
  ~PasswordsCounter() override;

  const char* GetPrefName() const override;

 protected:
  virtual void OnPasswordsFetchDone();
  virtual std::unique_ptr<PasswordsResult> MakeResult();
  void Count() override;

  bool is_sync_active() { return sync_tracker_.IsSyncActive(); }
  int num_passwords();
  int num_account_passwords();
  const std::vector<std::string>& domain_examples();
  const std::vector<std::string>& account_domain_examples();

 private:
  void OnInitialized() override;
  void OnFetchDone();

  base::CancelableTaskTracker cancelable_task_tracker_;
  std::unique_ptr<PasswordStoreFetcher> profile_store_fetcher_;
  std::unique_ptr<PasswordStoreFetcher> account_store_fetcher_;
  SyncTracker sync_tracker_;
  int remaining_tasks_ = 0;

  const raw_ptr<PrefService> pref_service_;

  base::WeakPtrFactory<PasswordsCounter> weak_ptr_factory_{this};
};

}  // namespace browsing_data

#endif  // COMPONENTS_BROWSING_DATA_CORE_COUNTERS_PASSWORDS_COUNTER_H_