// Copyright 2015 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 CONTENT_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_NETWORK_OBSERVER_H_
#define CONTENT_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_NETWORK_OBSERVER_H_

#include "base/bind.h"
#include "content/browser/background_sync/background_sync.pb.h"
#include "content/common/content_export.h"
#include "net/base/network_change_notifier.h"

namespace content {

class CONTENT_EXPORT BackgroundSyncNetworkObserver
    : net::NetworkChangeNotifier::NetworkChangeObserver {
 public:
  // Creates a BackgroundSyncNetworkObserver. |network_changed_callback| is
  // called when the network connection changes asynchronously via PostMessage.
  BackgroundSyncNetworkObserver(const base::Closure& network_changed_callback);

  ~BackgroundSyncNetworkObserver() override;

  // Returns true if the state of the network meets the needs of
  // |network_state|.
  bool NetworkSufficient(SyncNetworkState network_state);

 private:
  void NotifyNetworkChanged();

  // NetworkChangeObserver overrides
  void OnNetworkChanged(
      net::NetworkChangeNotifier::ConnectionType connection_type) override;

  net::NetworkChangeNotifier::ConnectionType connection_type_;

  // The callback to run when the network changes.
  base::Closure network_changed_callback_;

  DISALLOW_COPY_AND_ASSIGN(BackgroundSyncNetworkObserver);
};

}  // namespace content

#endif  // CONTENT_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_NETWORK_OBSERVER_H_