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/chromeos/network/vpn_delegate.h"
  12 #include "ash/system/tray/system_tray.h"
  13 #include "ash/system/tray/system_tray_delegate.h"
  14 #include "ash/system/tray/tray_constants.h"
  15 #include "ash/system/tray/tray_item_more.h"
  16 #include "ash/system/tray/tray_popup_label_button.h"
  17 #include "chromeos/network/network_state.h"
  18 #include "chromeos/network/network_state_handler.h"
  19 #include "grit/ash_strings.h"
  20 #include "grit/ui_chromeos_strings.h"
  21 #include "third_party/cros_system_api/dbus/service_constants.h"
  22 #include "ui/base/l10n/l10n_util.h"
  23 #include "ui/chromeos/network/network_icon.h"
  24 #include "ui/chromeos/network/network_icon_animation.h"
  25 #include "ui/chromeos/network/network_icon_animation_observer.h"
  26
  27 using chromeos::NetworkHandler;
  28 using chromeos::NetworkState;
  29 using chromeos::NetworkStateHandler;
  30 using chromeos::NetworkTypePattern;
  31
  32 namespace ash {
  33 namespace tray {
  34
  35 class VpnDefaultView : public TrayItemMore,
  36                        public ui::network_icon::AnimationObserver {
  37  public:
  38   VpnDefaultView(SystemTrayItem* owner, bool show_more)
  39       : TrayItemMore(owner, show_more) {
  40     Update();
  41   }
  42
  43   ~VpnDefaultView() override {
  44     ui::network_icon::NetworkIconAnimation::GetInstance()->RemoveObserver(this);
  45   }
  46
  47   static bool ShouldShow() {
  48     // Show the VPN entry in the ash tray bubble if at least one third-party VPN
  49     // provider is installed.
  50     if (Shell::GetInstance()
  51             ->system_tray_delegate()
  52             ->GetVPNDelegate()
  53             ->HaveThirdPartyVPNProviders()) {
  54       return true;
  55     }
  56
  57     // Also show the VPN entry if at least one VPN network is configured.
  58     NetworkStateHandler* const handler =
  59         NetworkHandler::Get()->network_state_handler();
  60     if (handler->FirstNetworkByType(NetworkTypePattern::VPN()))
  61       return true;
  62     return false;
  63   }
  64
  65   void Update() {
  66     gfx::ImageSkia image;
  67     base::string16 label;
  68     bool animating = false;
  69     GetNetworkStateHandlerImageAndLabel(&image, &label, &animating);
  70     if (animating)
  71       ui::network_icon::NetworkIconAnimation::GetInstance()->AddObserver(this);
  72     else
  73       ui::network_icon::NetworkIconAnimation::GetInstance()->RemoveObserver(
  74           this);
  75     SetImage(&image);
  76     SetLabel(label);
  77     SetAccessibleName(label);
  78   }
  79
  80   // ui::network_icon::AnimationObserver
  81   void NetworkIconChanged() override { Update(); }
  82
  83  private:
  84   void GetNetworkStateHandlerImageAndLabel(gfx::ImageSkia* image,
  85                                            base::string16* label,
  86                                            bool* animating) {
  87     NetworkStateHandler* handler =
  88         NetworkHandler::Get()->network_state_handler();
  89     const NetworkState* vpn =
  90         handler->FirstNetworkByType(NetworkTypePattern::VPN());
  91     if (!vpn || (!vpn->IsConnectedState() && !vpn->IsConnectingState())) {
  92       *image = ui::network_icon::GetImageForDisconnectedNetwork(
  93           ui::network_icon::ICON_TYPE_DEFAULT_VIEW, shill::kTypeVPN);
  94       if (label) {
  95         *label =
  96             l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_VPN_DISCONNECTED);
  97       }
  98       *animating = false;
  99       return;
 100     }
 101     *animating = vpn->IsConnectingState();
 102     *image = ui::network_icon::GetImageForNetwork(
 103         vpn, ui::network_icon::ICON_TYPE_DEFAULT_VIEW);
 104     if (label) {
 105       *label = ui::network_icon::GetLabelForNetwork(
 106           vpn, ui::network_icon::ICON_TYPE_DEFAULT_VIEW);
 107     }
 108   }
 109
 110   DISALLOW_COPY_AND_ASSIGN(VpnDefaultView);
 111 };
 112
 113 }  // namespace tray
 114
 115 TrayVPN::TrayVPN(SystemTray* system_tray)
 116     : SystemTrayItem(system_tray), default_(NULL), detailed_(NULL) {
 117   network_state_observer_.reset(new TrayNetworkStateObserver(this));
 118 }
 119
 120 TrayVPN::~TrayVPN() {
 121 }
 122
 123 views::View* TrayVPN::CreateTrayView(user::LoginStatus status) {
 124   return NULL;
 125 }
 126
 127 views::View* TrayVPN::CreateDefaultView(user::LoginStatus status) {
 128   CHECK(default_ == NULL);
 129   if (!chromeos::NetworkHandler::IsInitialized())
 130     return NULL;
 131   if (status == user::LOGGED_IN_NONE)
 132     return NULL;
 133   if (!tray::VpnDefaultView::ShouldShow())
 134     return NULL;
 135
 136   bool userAddingRunning = ash::Shell::GetInstance()
 137                                ->session_state_delegate()
 138                                ->IsInSecondaryLoginScreen();
 139
 140   default_ = new tray::VpnDefaultView(
 141       this, status != user::LOGGED_IN_LOCKED && !userAddingRunning);
 142
 143   return default_;
 144 }
 145
 146 views::View* TrayVPN::CreateDetailedView(user::LoginStatus status) {
 147   CHECK(detailed_ == NULL);
 148   if (!chromeos::NetworkHandler::IsInitialized())
 149     return NULL;
 150
 151   Shell::GetInstance()->metrics()->RecordUserMetricsAction(
 152       ash::UMA_STATUS_AREA_DETAILED_VPN_VIEW);
 153   detailed_ = new tray::NetworkStateListDetailedView(
 154       this, tray::NetworkStateListDetailedView::LIST_TYPE_VPN, status);
 155   detailed_->Init();
 156   return detailed_;
 157 }
 158
 159 void TrayVPN::DestroyTrayView() {
 160 }
 161
 162 void TrayVPN::DestroyDefaultView() {
 163   default_ = NULL;
 164 }
 165
 166 void TrayVPN::DestroyDetailedView() {
 167   detailed_ = NULL;
 168 }
 169
 170 void TrayVPN::UpdateAfterLoginStatusChange(user::LoginStatus status) {
 171 }
 172
 173 void TrayVPN::UpdateAfterShelfAlignmentChange(ShelfAlignment alignment) {
 174 }
 175
 176 void TrayVPN::NetworkStateChanged() {
 177   if (default_)
 178     default_->Update();
 179   if (detailed_)
 180     detailed_->Update();
 181 }
 182
 183 }  // namespace ash