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 CHROMEOS_NETWORK_NETWORK_STATE_HANDLER_OBSERVER_H_ 6 #define CHROMEOS_NETWORK_NETWORK_STATE_HANDLER_OBSERVER_H_ 7 8 #include <string> 9 #include <vector> 10 11 #include "base/basictypes.h" 12 #include "chromeos/chromeos_export.h" 13 14 namespace chromeos { 15 16 class NetworkState; 17 18 // Observer class for all network state changes, including changes to 19 // active (connecting or connected) services. 20 class CHROMEOS_EXPORT NetworkStateHandlerObserver { 21 public: 22 NetworkStateHandlerObserver(); 23 virtual ~NetworkStateHandlerObserver(); 24 25 // The list of networks changed. 26 virtual void NetworkListChanged(); 27 28 // The list of devices changed, or a property changed (e.g. scanning). 29 virtual void DeviceListChanged(); 30 31 // The default network changed (includes VPNs) or one of its properties 32 // changed. This won't be called if the WiFi signal strength property 33 // changes. If interested in those events, use NetworkPropertiesUpdated() 34 // below. 35 // |network| will be NULL if there is no longer a default network. 36 virtual void DefaultNetworkChanged(const NetworkState* network); 37 38 // The connection state of |network| changed. 39 virtual void NetworkConnectionStateChanged(const NetworkState* network); 40 41 // One or more properties of |network| have been updated. Note: this will get 42 // called in *addition* to NetworkConnectionStateChanged() when the 43 // connection state property changes. Use this to track properties like 44 // wifi strength. 45 virtual void NetworkPropertiesUpdated(const NetworkState* network); 46 47 // Called just before NetworkStateHandler is destroyed so that observers 48 // can safely stop observing. 49 virtual void IsShuttingDown(); 50 51 private: 52 DISALLOW_COPY_AND_ASSIGN(NetworkStateHandlerObserver); 53 }; 54 55 } // namespace chromeos 56 57 #endif // CHROMEOS_NETWORK_NETWORK_STATE_HANDLER_OBSERVER_H_ 58
