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