chrome/browser/local_discovery/privet_device_lister.h

// Copyright 2013 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_LOCAL_DISCOVERY_PRIVET_DEVICE_LISTER_H_
#define CHROME_BROWSER_LOCAL_DISCOVERY_PRIVET_DEVICE_LISTER_H_

#include <string>

#include "base/callback.h"
#include "base/time/time.h"
#include "net/base/host_port_pair.h"
#include "net/base/net_util.h"

namespace local_discovery {

struct DeviceDescription {
  enum ConnectionState {
    ONLINE,
    OFFLINE,
    CONNECTING,
    NOT_CONFIGURED,
    UNKNOWN
  };

  DeviceDescription();
  ~DeviceDescription();

  // Display attributes
  std::string name;
  std::string description;

  // Functional attributes
  std::string url;
  std::string id;
  std::string type;
  ConnectionState connection_state;

  // Attributes related to local HTTP
  net::HostPortPair address;
  net::IPAddressNumber ip_address;
  base::Time last_seen;
};

class PrivetDeviceLister {
 public:
  class Delegate {
   public:
    virtual void DeviceChanged(bool added,
                               const std::string& name,
                               const DeviceDescription& description) = 0;
    virtual void DeviceRemoved(const std::string& name) = 0;
    virtual void DeviceCacheFlushed() = 0;
  };


  virtual ~PrivetDeviceLister() {}

  // Start the PrivetServiceLister.
  virtual void Start() = 0;

  virtual void DiscoverNewDevices(bool force_update) = 0;
};

}  // namespace local_discovery

#endif  // CHROME_BROWSER_LOCAL_DISCOVERY_PRIVET_DEVICE_LISTER_H_