ash/system/tray_caps_lock.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/tray_caps_lock.h"
   6
   7 #include "ash/caps_lock_delegate.h"
   8 #include "ash/metrics/user_metrics_recorder.h"
   9 #include "ash/shell.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_notifier.h"
  13 #include "ash/system/tray/tray_constants.h"
  14 #include "grit/ash_resources.h"
  15 #include "grit/ash_strings.h"
  16 #include "ui/base/accessibility/accessible_view_state.h"
  17 #include "ui/base/resource/resource_bundle.h"
  18 #include "ui/gfx/image/image.h"
  19 #include "ui/views/controls/image_view.h"
  20 #include "ui/views/controls/label.h"
  21 #include "ui/views/layout/box_layout.h"
  22 #include "ui/views/widget/widget.h"
  23
  24 namespace ash {
  25 namespace internal {
  26
  27 class CapsLockDefaultView : public ActionableView {
  28  public:
  29   CapsLockDefaultView()
  30       : text_label_(new views::Label),
  31         shortcut_label_(new views::Label) {
  32     SetLayoutManager(new views::BoxLayout(views::BoxLayout::kHorizontal,
  33                                           kTrayPopupPaddingHorizontal,
  34                                           0,
  35                                           kTrayPopupPaddingBetweenItems));
  36
  37     ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
  38     FixedSizedImageView* image =
  39         new FixedSizedImageView(0, kTrayPopupItemHeight);
  40     image->SetImage(bundle.GetImageNamed(IDR_AURA_UBER_TRAY_CAPS_LOCK_DARK).
  41         ToImageSkia());
  42     AddChildView(image);
  43
  44     text_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
  45     AddChildView(text_label_);
  46
  47     shortcut_label_->SetEnabled(false);
  48     AddChildView(shortcut_label_);
  49   }
  50
  51   virtual ~CapsLockDefaultView() {}
  52
  53   // Updates the label text and the shortcut text.
  54   void Update(bool caps_lock_enabled, bool search_mapped_to_caps_lock) {
  55     ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
  56     const int text_string_id = caps_lock_enabled ?
  57         IDS_ASH_STATUS_TRAY_CAPS_LOCK_ENABLED :
  58         IDS_ASH_STATUS_TRAY_CAPS_LOCK_DISABLED;
  59     text_label_->SetText(bundle.GetLocalizedString(text_string_id));
  60
  61     int shortcut_string_id = 0;
  62     if (caps_lock_enabled) {
  63       shortcut_string_id = search_mapped_to_caps_lock ?
  64           IDS_ASH_STATUS_TRAY_CAPS_LOCK_SHORTCUT_SEARCH_OR_SHIFT :
  65           IDS_ASH_STATUS_TRAY_CAPS_LOCK_SHORTCUT_ALT_SEARCH_OR_SHIFT;
  66     } else {
  67       shortcut_string_id = search_mapped_to_caps_lock ?
  68           IDS_ASH_STATUS_TRAY_CAPS_LOCK_SHORTCUT_SEARCH :
  69           IDS_ASH_STATUS_TRAY_CAPS_LOCK_SHORTCUT_ALT_SEARCH;
  70     }
  71     shortcut_label_->SetText(bundle.GetLocalizedString(shortcut_string_id));
  72
  73     Layout();
  74   }
  75
  76  private:
  77   // Overridden from views::View:
  78   virtual void Layout() OVERRIDE {
  79     views::View::Layout();
  80
  81     // Align the shortcut text with the right end
  82     const int old_x = shortcut_label_->x();
  83     const int new_x =
  84         width() - shortcut_label_->width() - kTrayPopupPaddingHorizontal;
  85     shortcut_label_->SetX(new_x);
  86     const gfx::Size text_size = text_label_->size();
  87     text_label_->SetSize(gfx::Size(text_size.width() + new_x - old_x,
  88                                    text_size.height()));
  89   }
  90
  91   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE {
  92     state->role = ui::AccessibilityTypes::ROLE_PUSHBUTTON;
  93     state->name = text_label_->text();
  94   }
  95
  96   // Overridden from ActionableView:
  97   virtual bool PerformAction(const ui::Event& event) OVERRIDE {
  98     Shell::GetInstance()->metrics()->RecordUserMetricsAction(
  99         Shell::GetInstance()->caps_lock_delegate()->IsCapsLockEnabled() ?
 100         ash::UMA_STATUS_AREA_CAPS_LOCK_DISABLED_BY_CLICK :
 101         ash::UMA_STATUS_AREA_CAPS_LOCK_ENABLED_BY_CLICK);
 102     Shell::GetInstance()->caps_lock_delegate()->ToggleCapsLock();
 103     return true;
 104   }
 105
 106   views::Label* text_label_;
 107   views::Label* shortcut_label_;
 108
 109   DISALLOW_COPY_AND_ASSIGN(CapsLockDefaultView);
 110 };
 111
 112 TrayCapsLock::TrayCapsLock(SystemTray* system_tray)
 113     : TrayImageItem(system_tray, IDR_AURA_UBER_TRAY_CAPS_LOCK),
 114       default_(NULL),
 115       detailed_(NULL),
 116       search_mapped_to_caps_lock_(false),
 117       caps_lock_enabled_(
 118           Shell::GetInstance()->caps_lock_delegate()->IsCapsLockEnabled()),
 119       message_shown_(false) {
 120   Shell::GetInstance()->system_tray_notifier()->AddCapsLockObserver(this);
 121 }
 122
 123 TrayCapsLock::~TrayCapsLock() {
 124   Shell::GetInstance()->system_tray_notifier()->RemoveCapsLockObserver(this);
 125 }
 126
 127 bool TrayCapsLock::GetInitialVisibility() {
 128   return Shell::GetInstance()->caps_lock_delegate()->IsCapsLockEnabled();
 129 }
 130
 131 views::View* TrayCapsLock::CreateDefaultView(user::LoginStatus status) {
 132   if (!caps_lock_enabled_)
 133     return NULL;
 134   DCHECK(default_ == NULL);
 135   default_ = new CapsLockDefaultView;
 136   default_->Update(caps_lock_enabled_, search_mapped_to_caps_lock_);
 137   return default_;
 138 }
 139
 140 views::View* TrayCapsLock::CreateDetailedView(user::LoginStatus status) {
 141   DCHECK(detailed_ == NULL);
 142   detailed_ = new views::View;
 143
 144   detailed_->SetLayoutManager(new
 145       views::BoxLayout(views::BoxLayout::kHorizontal,
 146       kTrayPopupPaddingHorizontal, 10, kTrayPopupPaddingBetweenItems));
 147
 148   ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
 149   views::ImageView* image = new views::ImageView;
 150   image->SetImage(bundle.GetImageNamed(IDR_AURA_UBER_TRAY_CAPS_LOCK_DARK).
 151       ToImageSkia());
 152
 153   detailed_->AddChildView(image);
 154
 155   const int string_id = search_mapped_to_caps_lock_ ?
 156       IDS_ASH_STATUS_TRAY_CAPS_LOCK_CANCEL_BY_SEARCH :
 157       IDS_ASH_STATUS_TRAY_CAPS_LOCK_CANCEL_BY_ALT_SEARCH;
 158   views::Label* label = new views::Label(bundle.GetLocalizedString(string_id));
 159   label->SetMultiLine(true);
 160   label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
 161   detailed_->AddChildView(label);
 162   Shell::GetInstance()->metrics()->RecordUserMetricsAction(
 163       ash::UMA_STATUS_AREA_CAPS_LOCK_DETAILED);
 164
 165   return detailed_;
 166 }
 167
 168 void TrayCapsLock::DestroyDefaultView() {
 169   default_ = NULL;
 170 }
 171
 172 void TrayCapsLock::DestroyDetailedView() {
 173   detailed_ = NULL;
 174 }
 175
 176 void TrayCapsLock::OnCapsLockChanged(bool enabled,
 177                                      bool search_mapped_to_caps_lock) {
 178   if (tray_view())
 179     tray_view()->SetVisible(enabled);
 180
 181   caps_lock_enabled_ = enabled;
 182   search_mapped_to_caps_lock_ = search_mapped_to_caps_lock;
 183
 184   if (default_) {
 185     default_->Update(enabled, search_mapped_to_caps_lock);
 186   } else {
 187     if (enabled) {
 188       if (!message_shown_) {
 189         Shell::GetInstance()->metrics()->RecordUserMetricsAction(
 190             ash::UMA_STATUS_AREA_CAPS_LOCK_POPUP);
 191         PopupDetailedView(kTrayPopupAutoCloseDelayForTextInSeconds, false);
 192         message_shown_ = true;
 193       }
 194     } else if (detailed_) {
 195       detailed_->GetWidget()->Close();
 196     }
 197   }
 198 }
 199
 200 }  // namespace internal
 201 }  // namespace ash