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/device_event_log.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
  26 using chromeos::NetworkHandler;
  27 using chromeos::NetworkState;
  28 using chromeos::NetworkStateHandler;
  29 using chromeos::NetworkTypePattern;
  30
  31 namespace ash {
  32 namespace tray {
  33
  34 class VpnDefaultView : public TrayItemMore,
  35                        public ui::network_icon::AnimationObserver {
  36  public:
  37   VpnDefaultView(SystemTrayItem* owner, bool show_more)
  38       : TrayItemMore(owner, show_more) {
  39     Update();
  40   }
  41
  42   ~VpnDefaultView() override {
  43     ui::network_icon::NetworkIconAnimation::GetInstance()->RemoveObserver(this);
  44   }
  45
  46   static bool ShouldShow() {
  47     // Do not show VPN line in uber tray bubble if VPN is not configured.
  48     NetworkStateHandler* handler =
  49         NetworkHandler::Get()->network_state_handler();
  50     const NetworkState* vpn =
  51         handler->FirstNetworkByType(NetworkTypePattern::VPN());
  52     return vpn != NULL;
  53   }
  54
  55   void Update() {
  56     gfx::ImageSkia image;
  57     base::string16 label;
  58     bool animating = false;
  59     GetNetworkStateHandlerImageAndLabel(&image, &label, &animating);
  60     if (animating)
  61       ui::network_icon::NetworkIconAnimation::GetInstance()->AddObserver(this);
  62     else
  63       ui::network_icon::NetworkIconAnimation::GetInstance()->RemoveObserver(
  64           this);
  65     SetImage(&image);
  66     SetLabel(label);
  67     SetAccessibleName(label);
  68   }
  69
  70   // ui::network_icon::AnimationObserver
  71   void NetworkIconChanged() override { Update(); }
  72
  73  private:
  74   void GetNetworkStateHandlerImageAndLabel(gfx::ImageSkia* image,
  75                                            base::string16* label,
  76                                            bool* animating) {
  77     NetworkStateHandler* handler =
  78         NetworkHandler::Get()->network_state_handler();
  79     const NetworkState* vpn =
  80         handler->FirstNetworkByType(NetworkTypePattern::VPN());
  81     if (!vpn || (!vpn->IsConnectedState() && !vpn->IsConnectingState())) {
  82       *image = ui::network_icon::GetImageForDisconnectedNetwork(
  83           ui::network_icon::ICON_TYPE_DEFAULT_VIEW, shill::kTypeVPN);
  84       if (label) {
  85         *label =
  86             l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_VPN_DISCONNECTED);
  87       }
  88       *animating = false;
  89       return;
  90     }
  91     *animating = vpn->IsConnectingState();
  92     *image = ui::network_icon::GetImageForNetwork(
  93         vpn, ui::network_icon::ICON_TYPE_DEFAULT_VIEW);
  94     if (label) {
  95       *label = ui::network_icon::GetLabelForNetwork(
  96           vpn, ui::network_icon::ICON_TYPE_DEFAULT_VIEW);
  97     }
  98   }
  99
 100   DISALLOW_COPY_AND_ASSIGN(VpnDefaultView);
 101 };
 102
 103 }  // namespace tray
 104
 105 TrayVPN::TrayVPN(SystemTray* system_tray)
 106     : SystemTrayItem(system_tray), default_(NULL), detailed_(NULL) {
 107   network_state_observer_.reset(new TrayNetworkStateObserver(this));
 108 }
 109
 110 TrayVPN::~TrayVPN() {
 111 }
 112
 113 views::View* TrayVPN::CreateTrayView(user::LoginStatus status) {
 114   return NULL;
 115 }
 116
 117 views::View* TrayVPN::CreateDefaultView(user::LoginStatus status) {
 118   CHECK(default_ == NULL);
 119   if (!chromeos::NetworkHandler::IsInitialized())
 120     return NULL;
 121   if (status == user::LOGGED_IN_NONE)
 122     return NULL;
 123   if (!tray::VpnDefaultView::ShouldShow())
 124     return NULL;
 125
 126   bool userAddingRunning = ash::Shell::GetInstance()
 127                                ->session_state_delegate()
 128                                ->IsInSecondaryLoginScreen();
 129
 130   default_ = new tray::VpnDefaultView(
 131       this, status != user::LOGGED_IN_LOCKED && !userAddingRunning);
 132
 133   return default_;
 134 }
 135
 136 views::View* TrayVPN::CreateDetailedView(user::LoginStatus status) {
 137   CHECK(detailed_ == NULL);
 138   if (!chromeos::NetworkHandler::IsInitialized())
 139     return NULL;
 140
 141   Shell::GetInstance()->metrics()->RecordUserMetricsAction(
 142       ash::UMA_STATUS_AREA_DETAILED_VPN_VIEW);
 143   detailed_ = new tray::NetworkStateListDetailedView(
 144       this, tray::NetworkStateListDetailedView::LIST_TYPE_VPN, status);
 145   detailed_->Init();
 146   return detailed_;
 147 }
 148
 149 void TrayVPN::DestroyTrayView() {
 150 }
 151
 152 void TrayVPN::DestroyDefaultView() {
 153   default_ = NULL;
 154 }
 155
 156 void TrayVPN::DestroyDetailedView() {
 157   detailed_ = NULL;
 158 }
 159
 160 void TrayVPN::UpdateAfterLoginStatusChange(user::LoginStatus status) {
 161 }
 162
 163 void TrayVPN::UpdateAfterShelfAlignmentChange(ShelfAlignment alignment) {
 164 }
 165
 166 void TrayVPN::NetworkStateChanged() {
 167   if (default_)
 168     default_->Update();
 169   if (detailed_)
 170     detailed_->Update();
 171 }
 172
 173 }  // namespace ash