chromeos: Remove old status-area related code.

chrome/browser/chromeos/status/caps_lock_menu_button.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/chromeos/status/caps_lock_menu_button.h"
-
-#include <string>
-
-#include "base/chromeos/chromeos_version.h"
-#include "base/utf_string_conversions.h"
-#include "chrome/browser/chromeos/input_method/input_method_manager.h"
-#include "chrome/browser/chromeos/input_method/xkeyboard.h"
-#include "chrome/browser/chromeos/login/screen_locker.h"
-#include "chrome/browser/chromeos/status/status_area_bubble.h"
-#include "chrome/browser/chromeos/status/status_area_view_chromeos.h"
-#include "chrome/browser/chromeos/view_ids.h"
-#include "chrome/browser/prefs/pref_service.h"
-#include "chrome/browser/profiles/profile_manager.h"
-#include "chrome/common/chrome_notification_types.h"
-#include "chrome/common/pref_names.h"
-#include "content/public/browser/notification_service.h"
-#include "grit/generated_resources.h"
-#include "grit/theme_resources.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/gfx/image/image.h"
-#include "ui/views/controls/image_view.h"
-#include "ui/views/controls/menu/menu_item_view.h"
-#include "ui/views/controls/menu/menu_runner.h"
-#include "ui/views/controls/menu/submenu_view.h"
-#include "ui/views/widget/widget.h"
-
-namespace {
-
-const size_t kMaxBubbleCount = 3;
-
-PrefService* GetPrefService() {
-  Profile* profile = ProfileManager::GetDefaultProfile();
-  if (profile)
-    return profile->GetPrefs();
-  return NULL;
-}
-
-views::ImageView* CreateImageViewWithCapsLockIcon() {
-  const gfx::Image& image =
-      ResourceBundle::GetSharedInstance().GetImageNamed(IDR_CAPS_LOCK_ICON);
-  views::ImageView* image_view = new views::ImageView;
-  image_view->SetImage(image.ToSkBitmap());
-  return image_view;
-}
-
-}  // namespace
-
-namespace chromeos {
-
-////////////////////////////////////////////////////////////////////////////////
-// CapsLockMenuButton
-
-CapsLockMenuButton::CapsLockMenuButton(StatusAreaButton::Delegate* delegate)
-    : StatusAreaButton(delegate, this),
-      initialized_prefs_(false),
-      status_(NULL),
-      should_show_bubble_(true),
-      bubble_count_(0) {
-  set_id(VIEW_ID_STATUS_BUTTON_CAPS_LOCK);
-
-  if (StatusAreaViewChromeos::IsBrowserMode())
-    InitializePrefMember();
-
-  SetIcon(*ResourceBundle::GetSharedInstance().GetBitmapNamed(
-      IDR_STATUSBAR_CAPS_LOCK));
-  UpdateAccessibleName();
-
-  input_method::InputMethodManager* ime_manager =
-      input_method::InputMethodManager::GetInstance();
-  UpdateUIFromCurrentCapsLock(ime_manager->GetXKeyboard()->CapsLockIsEnabled());
-
-  // Status bar should be initialized after SystemKeyEventListener on the
-  // device. SystemKeyEventListener is never initialized on chrome for cros
-  // running on linux.
-  DCHECK(SystemKeyEventListener::GetInstance() ||
-         !base::chromeos::IsRunningOnChromeOS());
-  if (SystemKeyEventListener::GetInstance())
-    SystemKeyEventListener::GetInstance()->AddCapsLockObserver(this);
-
-#if defined(USE_ASH)
-  if (StatusAreaViewChromeos::IsLoginMode()) {
-    // See comments in InputMethodMenu::InputMethodMenu().
-    registrar_.Add(this,
-                   chrome::NOTIFICATION_SESSION_STARTED,
-                   content::NotificationService::AllSources());
-  }
-#endif
-}
-
-CapsLockMenuButton::~CapsLockMenuButton() {
-  if (SystemKeyEventListener::GetInstance())
-    SystemKeyEventListener::GetInstance()->RemoveCapsLockObserver(this);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// views::View implementation:
-
-void CapsLockMenuButton::OnLocaleChanged() {
-  input_method::InputMethodManager* ime_manager =
-      input_method::InputMethodManager::GetInstance();
-  UpdateUIFromCurrentCapsLock(ime_manager->GetXKeyboard()->CapsLockIsEnabled());
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// views::MenuDelegate implementation:
-
-string16 CapsLockMenuButton::GetLabel(int id) const {
-  return string16();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// views::MenuButtonListener implementation:
-
-void CapsLockMenuButton::OnMenuButtonClicked(views::View* source,
-                                             const gfx::Point& point) {
-  static const int kDummyCommandId = 1000;
-
-  if (IsBubbleShown())
-    HideBubble();
-
-  views::MenuItemView* menu = new views::MenuItemView(this);
-  // MenuRunner takes ownership of |menu|.
-  menu_runner_.reset(new views::MenuRunner(menu));
-  views::MenuItemView* submenu = menu->AppendMenuItem(
-      kDummyCommandId,
-      string16(),
-      views::MenuItemView::NORMAL);
-  status_ = new StatusAreaBubbleContentView(CreateImageViewWithCapsLockIcon(),
-                                            GetText());
-  submenu->AddChildView(status_);
-  menu->CreateSubmenu()->set_resize_open_menu(true);
-  menu->SetMargins(0, 0);
-  submenu->SetMargins(0, 0);
-  menu->ChildrenChanged();
-
-  gfx::Point screen_location;
-  views::View::ConvertPointToScreen(source, &screen_location);
-  gfx::Rect bounds(screen_location, source->size());
-  if (menu_runner_->RunMenuAt(
-          source->GetWidget()->GetTopLevelWidget(), this, bounds,
-          views::MenuItemView::TOPRIGHT, views::MenuRunner::HAS_MNEMONICS) ==
-      views::MenuRunner::MENU_DELETED)
-    return;
-  status_ = NULL;
-  menu_runner_.reset(NULL);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// SystemKeyEventListener::CapsLockObserver implementation
-
-void CapsLockMenuButton::OnCapsLockChange(bool enabled) {
-  if (!enabled && !HasCapsLock() && bubble_count_ > 0) {
-    // Both shift keys are pressed. We can assume that the user now recognizes
-    // how to turn off Caps Lock.
-    should_show_bubble_ = false;
-  }
-
-  // Update the indicator.
-  UpdateUIFromCurrentCapsLock(enabled);
-
-  // Update the drop-down menu and bubble. Since the constructor also calls
-  // UpdateUIFromCurrentCapsLock, we shouldn't do this in the function.
-  if (enabled && IsMenuShown()) {
-    // Update the drop-down menu if it's already shown.
-    status_->SetMessage(GetText());
-  } else if (!enabled && IsMenuShown()) {
-    HideMenu();
-  }
-  if (enabled)
-    MaybeShowBubble();
-  else if (!enabled && IsBubbleShown())
-    HideBubble();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// content::NotificationObserver implementation
-
-void CapsLockMenuButton::Observe(int type,
-                                 const content::NotificationSource& source,
-                                 const content::NotificationDetails& details) {
-  switch (type) {
-    case chrome::NOTIFICATION_PREF_CHANGED:
-      UpdateAccessibleName();
-      break;
-    case chrome::NOTIFICATION_SESSION_STARTED:
-      InitializePrefMember();
-      break;
-  }
-}
-
-void CapsLockMenuButton::UpdateAccessibleName() {
-  int id = IDS_STATUSBAR_CAPS_LOCK_ENABLED_PRESS_SHIFT_AND_SEARCH_KEYS;
-  if (HasCapsLock())
-    id = IDS_STATUSBAR_CAPS_LOCK_ENABLED_PRESS_SEARCH;
-  SetAccessibleName(l10n_util::GetStringUTF16(id));
-}
-
-string16 CapsLockMenuButton::GetText() const {
-  int id = IDS_STATUSBAR_CAPS_LOCK_ENABLED_PRESS_SHIFT_AND_SEARCH_KEYS;
-  if (HasCapsLock())
-    id = IDS_STATUSBAR_CAPS_LOCK_ENABLED_PRESS_SEARCH;
-  return l10n_util::GetStringUTF16(id);
-}
-
-void CapsLockMenuButton::UpdateUIFromCurrentCapsLock(bool enabled) {
-  SetVisible(enabled);
-  SchedulePaint();
-}
-
-bool CapsLockMenuButton::IsMenuShown() const {
-  return menu_runner_.get() && status_;
-}
-
-void CapsLockMenuButton::HideMenu() {
-  if (!IsMenuShown())
-    return;
-  menu_runner_->Cancel();
-}
-
-bool CapsLockMenuButton::IsBubbleShown() const {
-  return bubble_controller_.get() && bubble_controller_->IsBubbleShown();
-}
-
-void CapsLockMenuButton::MaybeShowBubble() {
-  if (IsBubbleShown() ||
-      // We've already shown the bubble |kMaxBubbleCount| times.
-      !should_show_bubble_ ||
-      // Don't show the bubble when Caps Lock key is available.
-      HasCapsLock() ||
-      // Don't show it when the status area is hidden.
-      (parent() && !parent()->visible()) ||
-      // Don't show the bubble when screen is locked as this results in two
-      // visible caps lock bubbles (crbug.com/105280). The greater problem of
-      // displaying bubbles from all caps lock menu buttons regardless of
-      // visibility is described in crbug.com/106776.
-      ScreenLocker::default_screen_locker())
-    return;
-
-  ++bubble_count_;
-  if (bubble_count_ > kMaxBubbleCount) {
-    should_show_bubble_ = false;
-  } else {
-    CreateAndShowBubble();
-  }
-}
-
-void CapsLockMenuButton::CreateAndShowBubble() {
-  if (IsBubbleShown()) {
-    NOTREACHED();
-    return;
-  }
-  bubble_controller_.reset(
-      StatusAreaBubbleController::ShowBubbleUnderViewForAWhile(
-          this,
-          new StatusAreaBubbleContentView(CreateImageViewWithCapsLockIcon(),
-                                          GetText())));
-}
-
-void CapsLockMenuButton::HideBubble() {
-  bubble_controller_.reset();
-}
-
-bool CapsLockMenuButton::HasCapsLock() const {
-  // A keyboard for Linux usually has Caps Lock.
-  if (!base::chromeos::IsRunningOnChromeOS())
-    return true;
-  // On the login screen, Caps Lock is not available.
-  if (!initialized_prefs_)
-    return false;
-
-  return remap_search_key_to_.GetValue() == input_method::kCapsLockKey;
-}
-
-void CapsLockMenuButton::InitializePrefMember() {
-  if (!initialized_prefs_) {
-    PrefService* prefs = GetPrefService();
-    if (prefs) {
-      initialized_prefs_ = true;
-      remap_search_key_to_.Init(
-          prefs::kLanguageXkbRemapSearchKeyTo, prefs, this);
-    }
-  }
-}
-
-}  // namespace chromeos