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   ~SettingsDefaultView() override { PowerStatus::Get()->RemoveObserver(this); }
  75
  76   // Overridden from ash::ActionableView.
  77   bool PerformAction(const ui::Event& event) override {
  78     bool userAddingRunning = ash::Shell::GetInstance()
  79                                  ->session_state_delegate()
  80                                  ->IsInSecondaryLoginScreen();
  81
  82     if (login_status_ == user::LOGGED_IN_NONE ||
  83         login_status_ == user::LOGGED_IN_LOCKED || userAddingRunning)
  84       return false;
  85
  86     ash::Shell::GetInstance()->system_tray_delegate()->ShowSettings();
  87     return true;
  88   }
  89
  90   // Overridden from views::View.
  91   void Layout() override {
  92     views::View::Layout();
  93
  94     if (label_ && power_status_view_) {
  95       // Let the box-layout do the layout first. Then move power_status_view_
  96       // to right align if it is created.
  97       gfx::Size size = power_status_view_->GetPreferredSize();
  98       gfx::Rect bounds(size);
  99       bounds.set_x(width() - size.width() - ash::kTrayPopupPaddingBetweenItems);
 100       bounds.set_y((height() - size.height()) / 2);
 101       power_status_view_->SetBoundsRect(bounds);
 102     }
 103   }
 104
 105   // Overridden from views::View.
 106   void ChildPreferredSizeChanged(views::View* child) override {
 107     views::View::ChildPreferredSizeChanged(child);
 108     Layout();
 109   }
 110
 111   // Overridden from PowerStatus::Observer.
 112   void OnPowerStatusChanged() override {
 113     if (!PowerStatus::Get()->IsBatteryPresent())
 114       return;
 115
 116     base::string16 accessible_name = label_ ?
 117         label_->text() + base::ASCIIToUTF16(", ") +
 118             PowerStatus::Get()->GetAccessibleNameString(true) :
 119         PowerStatus::Get()->GetAccessibleNameString(true);
 120     SetAccessibleName(accessible_name);
 121   }
 122
 123  private:
 124   user::LoginStatus login_status_;
 125   views::Label* label_;
 126   ash::PowerStatusView* power_status_view_;
 127
 128   DISALLOW_COPY_AND_ASSIGN(SettingsDefaultView);
 129  };
 130
 131 }  // namespace tray
 132
 133 TraySettings::TraySettings(SystemTray* system_tray)
 134     : SystemTrayItem(system_tray),
 135       default_view_(NULL) {
 136 }
 137
 138 TraySettings::~TraySettings() {
 139 }
 140
 141 views::View* TraySettings::CreateTrayView(user::LoginStatus status) {
 142   return NULL;
 143 }
 144
 145 views::View* TraySettings::CreateDefaultView(user::LoginStatus status) {
 146   if ((status == user::LOGGED_IN_NONE || status == user::LOGGED_IN_LOCKED) &&
 147       !PowerStatus::Get()->IsBatteryPresent())
 148     return NULL;
 149   if (!ash::Shell::GetInstance()->system_tray_delegate()->ShouldShowSettings())
 150     return NULL;
 151   CHECK(default_view_ == NULL);
 152   default_view_ =  new tray::SettingsDefaultView(status);
 153   return default_view_;
 154 }
 155
 156 views::View* TraySettings::CreateDetailedView(user::LoginStatus status) {
 157   NOTIMPLEMENTED();
 158   return NULL;
 159 }
 160
 161 void TraySettings::DestroyTrayView() {
 162 }
 163
 164 void TraySettings::DestroyDefaultView() {
 165   default_view_ = NULL;
 166 }
 167
 168 void TraySettings::DestroyDetailedView() {
 169 }
 170
 171 void TraySettings::UpdateAfterLoginStatusChange(user::LoginStatus status) {
 172 }
 173
 174 }  // namespace ash