ash/system/chromeos/network/tray_network_state_observer.cc

   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 #include "ash/system/chromeos/network/tray_network_state_observer.h"
   6
   7 #include <set>
   8 #include <string>
   9
  10 #include "base/location.h"
  11 #include "chromeos/network/network_state.h"
  12 #include "chromeos/network/network_state_handler.h"
  13 #include "third_party/cros_system_api/dbus/service_constants.h"
  14 #include "ui/chromeos/network/network_icon.h"
  15
  16 using chromeos::NetworkHandler;
  17
  18 namespace ash {
  19
  20 TrayNetworkStateObserver::TrayNetworkStateObserver(Delegate* delegate)
  21     : delegate_(delegate) {
  22   if (NetworkHandler::IsInitialized()) {
  23     NetworkHandler::Get()->network_state_handler()->AddObserver(
  24         this, FROM_HERE);
  25   }
  26 }
  27
  28 TrayNetworkStateObserver::~TrayNetworkStateObserver() {
  29   if (NetworkHandler::IsInitialized()) {
  30     NetworkHandler::Get()->network_state_handler()->RemoveObserver(
  31         this, FROM_HERE);
  32   }
  33 }
  34
  35 void TrayNetworkStateObserver::NetworkListChanged() {
  36   delegate_->NetworkStateChanged(true);
  37   ui::network_icon::PurgeNetworkIconCache();
  38 }
  39
  40 void TrayNetworkStateObserver::DeviceListChanged() {
  41   delegate_->NetworkStateChanged(false);
  42 }
  43
  44 // Any change to the Default (primary connected) network, including Strength
  45 // changes, should trigger a NetworkStateChanged update.
  46 void TrayNetworkStateObserver::DefaultNetworkChanged(
  47     const chromeos::NetworkState* network) {
  48   delegate_->NetworkStateChanged(true);
  49 }
  50
  51 // Any change to the Connection State should trigger a NetworkStateChanged
  52 // update. This is important when both a VPN and a physical network are
  53 // connected.
  54 void TrayNetworkStateObserver::NetworkConnectionStateChanged(
  55     const chromeos::NetworkState* network) {
  56   delegate_->NetworkStateChanged(true);
  57 }
  58
  59 // This tracks Strength and other property changes for all networks. It will
  60 // be called in addition to NetworkConnectionStateChanged for connection state
  61 // changes.
  62 void TrayNetworkStateObserver::NetworkPropertiesUpdated(
  63     const chromeos::NetworkState* network) {
  64   if (network ==
  65       NetworkHandler::Get()->network_state_handler()->DefaultNetwork()) {
  66     // Trigger NetworkStateChanged in case the Strength property of the
  67     // Default network changed.
  68     delegate_->NetworkStateChanged(true);
  69   }
  70   delegate_->NetworkServiceChanged(network);
  71 }
  72
  73 }  // namespace ash