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