ash/system/chromeos/network/network_state_notifier.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef ASH_SYSTEM_CHROMEOS_NETWORK_NETWORK_STATE_NOTIFIER_H_
   6 #define ASH_SYSTEM_CHROMEOS_NETWORK_NETWORK_STATE_NOTIFIER_H_
   7
   8 #include <set>
   9
  10 #include "ash/ash_export.h"
  11 #include "base/basictypes.h"
  12 #include "base/compiler_specific.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "base/memory/weak_ptr.h"
  15 #include "base/time/time.h"
  16 #include "chromeos/network/network_state_handler_observer.h"
  17
  18 namespace base {
  19 class DictionaryValue;
  20 }
  21
  22 namespace chromeos {
  23 class NetworkState;
  24 }
  25
  26 namespace ash {
  27
  28 // This class has two purposes:
  29 // 1. ShowNetworkConnectError() gets called after any user initiated connect
  30 //    failure. This will handle displaying an error notification.
  31 //    TODO(stevenjb): convert this class to use the new MessageCenter
  32 //    notification system.
  33 // 2. It observes NetworkState changes to generate notifications when a
  34 //    Cellular network is out of credits.
  35 class ASH_EXPORT NetworkStateNotifier :
  36       public chromeos::NetworkStateHandlerObserver {
  37  public:
  38   NetworkStateNotifier();
  39   virtual ~NetworkStateNotifier();
  40
  41   // NetworkStateHandlerObserver
  42   virtual void DefaultNetworkChanged(
  43       const chromeos::NetworkState* network) override;
  44   virtual void NetworkPropertiesUpdated(
  45       const chromeos::NetworkState* network) override;
  46
  47   // Show a connection error notification. If |error_name| matches an error
  48   // defined in NetworkConnectionHandler for connect, configure, or activation
  49   // failed, then the associated message is shown; otherwise use the last_error
  50   // value for the network or a Shill property if available.
  51   void ShowNetworkConnectError(const std::string& error_name,
  52                                const std::string& service_path);
  53
  54  private:
  55   void ConnectErrorPropertiesSucceeded(
  56       const std::string& error_name,
  57       const std::string& service_path,
  58       const base::DictionaryValue& shill_properties);
  59   void ConnectErrorPropertiesFailed(
  60       const std::string& error_name,
  61       const std::string& service_path,
  62       const std::string& shill_connect_error,
  63       scoped_ptr<base::DictionaryValue> shill_error_data);
  64   void ShowConnectErrorNotification(
  65       const std::string& error_name,
  66       const std::string& service_path,
  67       const base::DictionaryValue& shill_properties);
  68
  69   // Returns true if the default network changed.
  70   bool UpdateDefaultNetwork(const chromeos::NetworkState* network);
  71
  72   // Helper methods to update state and check for notifications.
  73   void UpdateCellularOutOfCredits(const chromeos::NetworkState* cellular);
  74   void UpdateCellularActivating(const chromeos::NetworkState* cellular);
  75
  76   std::string last_default_network_;
  77   bool did_show_out_of_credits_;
  78   base::Time out_of_credits_notify_time_;
  79   std::set<std::string> cellular_activating_;
  80   base::WeakPtrFactory<NetworkStateNotifier> weak_ptr_factory_;
  81
  82   DISALLOW_COPY_AND_ASSIGN(NetworkStateNotifier);
  83 };
  84
  85 }  // namespace ash
  86
  87 #endif  // ASH_SYSTEM_CHROMEOS_NETWORK_NETWORK_STATE_NOTIFIER_H_