// 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_OFFLINE_PAGES_FRESH_OFFLINE_CONTENT_OBSERVER_H_
#define CHROME_BROWSER_OFFLINE_PAGES_FRESH_OFFLINE_CONTENT_OBSERVER_H_

#include "base/macros.h"
#include "base/supports_user_data.h"
#include "components/offline_pages/core/offline_page_model.h"

namespace offline_pages {

class OfflinePageModel;

class FreshOfflineContentObserver : public OfflinePageModel::Observer,
                                    public base::SupportsUserData::Data {
 public:
  static void AttachToOfflinePageModel(OfflinePageModel* model);

  FreshOfflineContentObserver();
  ~FreshOfflineContentObserver() override;

  // OfflinePageModel::Observer implementation.
  void OfflinePageModelLoaded(OfflinePageModel* model) override;
  void OfflinePageAdded(OfflinePageModel* model,
                        const OfflinePageItem& added_page) override;
  void OfflinePageDeleted(
      const OfflinePageModel::DeletedPageInfo& page_info) override;

 private:
  DISALLOW_COPY_AND_ASSIGN(FreshOfflineContentObserver);
};

}  // namespace offline_pages

#endif  // CHROME_BROWSER_OFFLINE_PAGES_FRESH_OFFLINE_CONTENT_OBSERVER_H_