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