src/ash/system/chromeos/network/tray_vpn.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_vpn.h"
   6
   7 #include "ash/metrics/user_metrics_recorder.h"
   8 #include "ash/session/session_state_delegate.h"
   9 #include "ash/shell.h"
  10 #include "ash/system/chromeos/network/network_state_list_detailed_view.h"
  11 #include "ash/system/tray/system_tray.h"
  12 #include "ash/system/tray/system_tray_delegate.h"
  13 #include "ash/system/tray/tray_constants.h"
  14 #include "ash/system/tray/tray_item_more.h"
  15 #include "ash/system/tray/tray_popup_label_button.h"
  16 #include "chromeos/network/network_state.h"
  17 #include "chromeos/network/network_state_handler.h"
  18 #include "grit/ash_strings.h"
  19 #include "grit/ui_chromeos_strings.h"
  20 #include "third_party/cros_system_api/dbus/service_constants.h"
  21 #include "ui/base/l10n/l10n_util.h"
  22 #include "ui/chromeos/network/network_icon.h"
  23 #include "ui/chromeos/network/network_icon_animation.h"
  24
  25 using chromeos::NetworkHandler;
  26 using chromeos::NetworkState;
  27 using chromeos::NetworkStateHandler;
  28 using chromeos::NetworkTypePattern;
  29
  30 namespace ash {
  31 namespace tray {
  32
  33 class VpnDefaultView : public TrayItemMore,
  34                        public ui::network_icon::AnimationObserver {
  35  public:
  36   VpnDefaultView(SystemTrayItem* owner, bool show_more)
  37       : TrayItemMore(owner, show_more) {
  38     Update();
  39   }
  40
  41   virtual ~VpnDefaultView() {
  42     ui::network_icon::NetworkIconAnimation::GetInstance()->RemoveObserver(this);
  43   }
  44
  45   static bool ShouldShow() {
  46     // Do not show VPN line in uber tray bubble if VPN is not configured.
  47     NetworkStateHandler* handler =
  48         NetworkHandler::Get()->network_state_handler();
  49     const NetworkState* vpn =
  50         handler->FirstNetworkByType(NetworkTypePattern::VPN());
  51     return vpn != NULL;
  52   }
  53
  54   void Update() {
  55     gfx::ImageSkia image;
  56     base::string16 label;
  57     bool animating = false;
  58     GetNetworkStateHandlerImageAndLabel(&image, &label, &animating);
  59     if (animating)
  60       ui::network_icon::NetworkIconAnimation::GetInstance()->AddObserver(this);
  61     else
  62       ui::network_icon::NetworkIconAnimation::GetInstance()->RemoveObserver(
  63           this);
  64     SetImage(&image);
  65     SetLabel(label);
  66     SetAccessibleName(label);
  67   }
  68
  69   // ui::network_icon::AnimationObserver
  70   virtual void NetworkIconChanged() OVERRIDE {
  71     Update();
  72   }
  73
  74  private:
  75   void GetNetworkStateHandlerImageAndLabel(gfx::ImageSkia* image,
  76                                            base::string16* label,
  77                                            bool* animating) {
  78     NetworkStateHandler* handler =
  79         NetworkHandler::Get()->network_state_handler();
  80     const NetworkState* vpn =
  81         handler->FirstNetworkByType(NetworkTypePattern::VPN());
  82     if (!vpn || (vpn->connection_state() == shill::kStateIdle)) {
  83       *image = ui::network_icon::GetImageForDisconnectedNetwork(
  84           ui::network_icon::ICON_TYPE_DEFAULT_VIEW, shill::kTypeVPN);
  85       if (label) {
  86         *label = l10n_util::GetStringUTF16(
  87             IDS_ASH_STATUS_TRAY_VPN_DISCONNECTED);
  88       }
  89       *animating = false;
  90       return;
  91     }
  92     *animating = vpn->IsConnectingState();
  93     *image = ui::network_icon::GetImageForNetwork(
  94         vpn, ui::network_icon::ICON_TYPE_DEFAULT_VIEW);
  95     if (label) {
  96       *label = ui::network_icon::GetLabelForNetwork(
  97           vpn, ui::network_icon::ICON_TYPE_DEFAULT_VIEW);
  98     }
  99   }
 100
 101   DISALLOW_COPY_AND_ASSIGN(VpnDefaultView);
 102 };
 103
 104 }  // namespace tray
 105
 106 TrayVPN::TrayVPN(SystemTray* system_tray)
 107     : SystemTrayItem(system_tray),
 108       default_(NULL),
 109       detailed_(NULL) {
 110   network_state_observer_.reset(new TrayNetworkStateObserver(this));
 111 }
 112
 113 TrayVPN::~TrayVPN() {
 114 }
 115
 116 views::View* TrayVPN::CreateTrayView(user::LoginStatus status) {
 117   return NULL;
 118 }
 119
 120 views::View* TrayVPN::CreateDefaultView(user::LoginStatus status) {
 121   CHECK(default_ == NULL);
 122   if (!chromeos::NetworkHandler::IsInitialized())
 123     return NULL;
 124   if (status == user::LOGGED_IN_NONE)
 125     return NULL;
 126   if (!tray::VpnDefaultView::ShouldShow())
 127     return NULL;
 128
 129   bool userAddingRunning = ash::Shell::GetInstance()
 130                                ->session_state_delegate()
 131                                ->IsInSecondaryLoginScreen();
 132
 133   default_ = new tray::VpnDefaultView(
 134       this, status != user::LOGGED_IN_LOCKED && !userAddingRunning);
 135
 136   return default_;
 137 }
 138
 139 views::View* TrayVPN::CreateDetailedView(user::LoginStatus status) {
 140   CHECK(detailed_ == NULL);
 141   if (!chromeos::NetworkHandler::IsInitialized())
 142     return NULL;
 143
 144   Shell::GetInstance()->metrics()->RecordUserMetricsAction(
 145       ash::UMA_STATUS_AREA_DETAILED_VPN_VIEW);
 146   detailed_ = new tray::NetworkStateListDetailedView(
 147       this, tray::NetworkStateListDetailedView::LIST_TYPE_VPN, status);
 148   detailed_->Init();
 149   return detailed_;
 150 }
 151
 152 void TrayVPN::DestroyTrayView() {
 153 }
 154
 155 void TrayVPN::DestroyDefaultView() {
 156   default_ = NULL;
 157 }
 158
 159 void TrayVPN::DestroyDetailedView() {
 160   detailed_ = NULL;
 161 }
 162
 163 void TrayVPN::UpdateAfterLoginStatusChange(user::LoginStatus status) {
 164 }
 165
 166 void TrayVPN::UpdateAfterShelfAlignmentChange(ShelfAlignment alignment) {
 167 }
 168
 169 void TrayVPN::NetworkStateChanged(bool list_changed) {
 170   if (default_)
 171     default_->Update();
 172   if (detailed_) {
 173     if (list_changed)
 174       detailed_->NetworkListChanged();
 175     else
 176       detailed_->ManagerChanged();
 177   }
 178 }
 179
 180 void TrayVPN::NetworkServiceChanged(const chromeos::NetworkState* network) {
 181   if (detailed_)
 182     detailed_->NetworkServiceChanged(network);
 183 }
 184
 185 }  // namespace ash