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      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
    168