ash/system/chromeos/settings/tray_settings.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/settings/tray_settings.h"
   6
   7 #include "ash/session/session_state_delegate.h"
   8 #include "ash/shell.h"
   9 #include "ash/system/chromeos/power/power_status.h"
  10 #include "ash/system/chromeos/power/power_status_view.h"
  11 #include "ash/system/tray/actionable_view.h"
  12 #include "ash/system/tray/fixed_sized_image_view.h"
  13 #include "ash/system/tray/system_tray_delegate.h"
  14 #include "ash/system/tray/tray_constants.h"
  15 #include "base/logging.h"
  16 #include "base/strings/utf_string_conversions.h"
  17 #include "grit/ash_resources.h"
  18 #include "grit/ash_strings.h"
  19 #include "third_party/skia/include/core/SkColor.h"
  20 #include "ui/base/resource/resource_bundle.h"
  21 #include "ui/gfx/image/image.h"
  22 #include "ui/views/controls/image_view.h"
  23 #include "ui/views/controls/label.h"
  24 #include "ui/views/layout/box_layout.h"
  25 #include "ui/views/layout/fill_layout.h"
  26 #include "ui/views/view.h"
  27
  28 namespace ash {
  29 namespace tray {
  30
  31 class SettingsDefaultView : public ActionableView,
  32                             public PowerStatus::Observer {
  33  public:
  34   explicit SettingsDefaultView(user::LoginStatus status)
  35       : login_status_(status),
  36         label_(NULL),
  37         power_status_view_(NULL) {
  38     PowerStatus::Get()->AddObserver(this);
  39     SetLayoutManager(new views::BoxLayout(views::BoxLayout::kHorizontal,
  40         ash::kTrayPopupPaddingHorizontal, 0,
  41         ash::kTrayPopupPaddingBetweenItems));
  42
  43     bool power_view_right_align = false;
  44     bool userAddingRunning = ash::Shell::GetInstance()
  45                                  ->session_state_delegate()
  46                                  ->IsInSecondaryLoginScreen();
  47
  48     if (login_status_ != user::LOGGED_IN_NONE &&
  49         login_status_ != user::LOGGED_IN_LOCKED && !userAddingRunning) {
  50       ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
  51       views::ImageView* icon =
  52           new ash::FixedSizedImageView(0, ash::kTrayPopupItemHeight);
  53       icon->SetImage(
  54           rb.GetImageNamed(IDR_AURA_UBER_TRAY_SETTINGS).ToImageSkia());
  55       icon->set_id(test::kSettingsTrayItemViewId);
  56       AddChildView(icon);
  57
  58       base::string16 text = rb.GetLocalizedString(IDS_ASH_STATUS_TRAY_SETTINGS);
  59       label_ = new views::Label(text);
  60       AddChildView(label_);
  61       SetAccessibleName(text);
  62
  63       power_view_right_align = true;
  64     }
  65
  66     if (PowerStatus::Get()->IsBatteryPresent()) {
  67       power_status_view_ = new ash::PowerStatusView(
  68           ash::PowerStatusView::VIEW_DEFAULT, power_view_right_align);
  69       AddChildView(power_status_view_);
  70       OnPowerStatusChanged();
  71     }
  72   }
  73
  74   virtual ~SettingsDefaultView() {
  75     PowerStatus::Get()->RemoveObserver(this);
  76   }
  77
  78   // Overridden from ash::ActionableView.
  79   virtual bool PerformAction(const ui::Event& event) override {
  80     bool userAddingRunning = ash::Shell::GetInstance()
  81                                  ->session_state_delegate()
  82                                  ->IsInSecondaryLoginScreen();
  83
  84     if (login_status_ == user::LOGGED_IN_NONE ||
  85         login_status_ == user::LOGGED_IN_LOCKED || userAddingRunning)
  86       return false;
  87
  88     ash::Shell::GetInstance()->system_tray_delegate()->ShowSettings();
  89     return true;
  90   }
  91
  92   // Overridden from views::View.
  93   virtual void Layout() override {
  94     views::View::Layout();
  95
  96     if (label_ && power_status_view_) {
  97       // Let the box-layout do the layout first. Then move power_status_view_
  98       // to right align if it is created.
  99       gfx::Size size = power_status_view_->GetPreferredSize();
 100       gfx::Rect bounds(size);
 101       bounds.set_x(width() - size.width() - ash::kTrayPopupPaddingBetweenItems);
 102       bounds.set_y((height() - size.height()) / 2);
 103       power_status_view_->SetBoundsRect(bounds);
 104     }
 105   }
 106
 107   // Overridden from views::View.
 108   virtual void ChildPreferredSizeChanged(views::View* child) override {
 109     views::View::ChildPreferredSizeChanged(child);
 110     Layout();
 111   }
 112
 113   // Overridden from PowerStatus::Observer.
 114   virtual void OnPowerStatusChanged() override {
 115     if (!PowerStatus::Get()->IsBatteryPresent())
 116       return;
 117
 118     base::string16 accessible_name = label_ ?
 119         label_->text() + base::ASCIIToUTF16(", ") +
 120             PowerStatus::Get()->GetAccessibleNameString(true) :
 121         PowerStatus::Get()->GetAccessibleNameString(true);
 122     SetAccessibleName(accessible_name);
 123   }
 124
 125  private:
 126   user::LoginStatus login_status_;
 127   views::Label* label_;
 128   ash::PowerStatusView* power_status_view_;
 129
 130   DISALLOW_COPY_AND_ASSIGN(SettingsDefaultView);
 131  };
 132
 133 }  // namespace tray
 134
 135 TraySettings::TraySettings(SystemTray* system_tray)
 136     : SystemTrayItem(system_tray),
 137       default_view_(NULL) {
 138 }
 139
 140 TraySettings::~TraySettings() {
 141 }
 142
 143 views::View* TraySettings::CreateTrayView(user::LoginStatus status) {
 144   return NULL;
 145 }
 146
 147 views::View* TraySettings::CreateDefaultView(user::LoginStatus status) {
 148   if ((status == user::LOGGED_IN_NONE || status == user::LOGGED_IN_LOCKED) &&
 149       !PowerStatus::Get()->IsBatteryPresent())
 150     return NULL;
 151   if (!ash::Shell::GetInstance()->system_tray_delegate()->ShouldShowSettings())
 152     return NULL;
 153   CHECK(default_view_ == NULL);
 154   default_view_ =  new tray::SettingsDefaultView(status);
 155   return default_view_;
 156 }
 157
 158 views::View* TraySettings::CreateDetailedView(user::LoginStatus status) {
 159   NOTIMPLEMENTED();
 160   return NULL;
 161 }
 162
 163 void TraySettings::DestroyTrayView() {
 164 }
 165
 166 void TraySettings::DestroyDefaultView() {
 167   default_view_ = NULL;
 168 }
 169
 170 void TraySettings::DestroyDetailedView() {
 171 }
 172
 173 void TraySettings::UpdateAfterLoginStatusChange(user::LoginStatus status) {
 174 }
 175
 176 }  // namespace ash