mash: Move tray accessibility and keyboard to //ash/common

ash/system/tray_accessibility.cc

Index: ash/system/tray_accessibility.cc
diff --git a/ash/system/tray_accessibility.cc b/ash/system/tray_accessibility.cc
deleted file mode 100644
index a1c220f7c1a7ecd54f3c7e0576c3e7ff4a463b6c..0000000000000000000000000000000000000000
--- a/ash/system/tray_accessibility.cc
+++ /dev/null
@@ -1,421 +0,0 @@
-// 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 "ash/system/tray_accessibility.h"
-
-#include "ash/common/accessibility_delegate.h"
-#include "ash/common/accessibility_types.h"
-#include "ash/common/session/session_state_delegate.h"
-#include "ash/common/system/tray/hover_highlight_view.h"
-#include "ash/common/system/tray/system_tray_delegate.h"
-#include "ash/common/system/tray/tray_constants.h"
-#include "ash/common/system/tray/tray_item_more.h"
-#include "ash/common/system/tray/tray_popup_label_button.h"
-#include "ash/common/system/tray/wm_system_tray_notifier.h"
-#include "ash/common/wm_shell.h"
-#include "ash/system/tray/system_tray.h"
-#include "ash/system/tray/tray_details_view.h"
-#include "base/strings/utf_string_conversions.h"
-#include "grit/ash_resources.h"
-#include "grit/ash_strings.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/label.h"
-#include "ui/views/layout/box_layout.h"
-#include "ui/views/widget/widget.h"
-
-namespace ash {
-namespace {
-
-enum AccessibilityState {
-  A11Y_NONE = 0,
-  A11Y_SPOKEN_FEEDBACK = 1 << 0,
-  A11Y_HIGH_CONTRAST = 1 << 1,
-  A11Y_SCREEN_MAGNIFIER = 1 << 2,
-  A11Y_LARGE_CURSOR = 1 << 3,
-  A11Y_AUTOCLICK = 1 << 4,
-  A11Y_VIRTUAL_KEYBOARD = 1 << 5,
-  A11Y_BRAILLE_DISPLAY_CONNECTED = 1 << 6,
-};
-
-uint32_t GetAccessibilityState() {
-  AccessibilityDelegate* delegate = WmShell::Get()->GetAccessibilityDelegate();
-  uint32_t state = A11Y_NONE;
-  if (delegate->IsSpokenFeedbackEnabled())
-    state |= A11Y_SPOKEN_FEEDBACK;
-  if (delegate->IsHighContrastEnabled())
-    state |= A11Y_HIGH_CONTRAST;
-  if (delegate->IsMagnifierEnabled())
-    state |= A11Y_SCREEN_MAGNIFIER;
-  if (delegate->IsLargeCursorEnabled())
-    state |= A11Y_LARGE_CURSOR;
-  if (delegate->IsAutoclickEnabled())
-    state |= A11Y_AUTOCLICK;
-  if (delegate->IsVirtualKeyboardEnabled())
-    state |= A11Y_VIRTUAL_KEYBOARD;
-  if (delegate->IsBrailleDisplayConnected())
-    state |= A11Y_BRAILLE_DISPLAY_CONNECTED;
-  return state;
-}
-
-LoginStatus GetCurrentLoginStatus() {
-  return WmShell::Get()->system_tray_delegate()->GetUserLoginStatus();
-}
-
-}  // namespace
-
-namespace tray {
-
-class DefaultAccessibilityView : public TrayItemMore {
- public:
-  explicit DefaultAccessibilityView(SystemTrayItem* owner)
-      : TrayItemMore(owner, true) {
-    ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
-    SetImage(bundle.GetImageNamed(IDR_AURA_UBER_TRAY_ACCESSIBILITY_DARK).
-                    ToImageSkia());
-    base::string16 label = bundle.GetLocalizedString(
-        IDS_ASH_STATUS_TRAY_ACCESSIBILITY);
-    SetLabel(label);
-    SetAccessibleName(label);
-    set_id(test::kAccessibilityTrayItemViewId);
-  }
-
-  ~DefaultAccessibilityView() override {}
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(DefaultAccessibilityView);
-};
-
-////////////////////////////////////////////////////////////////////////////////
-// ash::tray::AccessibilityPopupView
-
-AccessibilityPopupView::AccessibilityPopupView(SystemTrayItem* owner,
-                                               uint32_t enabled_state_bits)
-    : TrayNotificationView(owner, IDR_AURA_UBER_TRAY_ACCESSIBILITY_DARK),
-      label_(CreateLabel(enabled_state_bits)) {
-  InitView(label_);
-}
-
-views::Label* AccessibilityPopupView::CreateLabel(uint32_t enabled_state_bits) {
-  DCHECK((enabled_state_bits &
-          (A11Y_SPOKEN_FEEDBACK | A11Y_BRAILLE_DISPLAY_CONNECTED)) != 0);
-  base::string16 text;
-  if (enabled_state_bits & A11Y_BRAILLE_DISPLAY_CONNECTED) {
-    text.append(l10n_util::GetStringUTF16(
-        IDS_ASH_STATUS_TRAY_BRAILLE_DISPLAY_CONNECTED_BUBBLE));
-  }
-  if (enabled_state_bits & A11Y_SPOKEN_FEEDBACK) {
-    if (!text.empty())
-      text.append(base::ASCIIToUTF16(" "));
-    text.append(l10n_util::GetStringUTF16(
-        IDS_ASH_STATUS_TRAY_SPOKEN_FEEDBACK_ENABLED_BUBBLE));
-  }
-  views::Label* label = new views::Label(text);
-  label->SetMultiLine(true);
-  label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
-  return label;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// ash::tray::AccessibilityDetailedView
-
-AccessibilityDetailedView::AccessibilityDetailedView(SystemTrayItem* owner,
-                                                     LoginStatus login)
-    : TrayDetailsView(owner),
-      spoken_feedback_view_(nullptr),
-      high_contrast_view_(nullptr),
-      screen_magnifier_view_(nullptr),
-      large_cursor_view_(nullptr),
-      help_view_(nullptr),
-      settings_view_(nullptr),
-      autoclick_view_(nullptr),
-      virtual_keyboard_view_(nullptr),
-      spoken_feedback_enabled_(false),
-      high_contrast_enabled_(false),
-      screen_magnifier_enabled_(false),
-      large_cursor_enabled_(false),
-      autoclick_enabled_(false),
-      virtual_keyboard_enabled_(false),
-      login_(login) {
-  Reset();
-
-  AppendAccessibilityList();
-  AppendHelpEntries();
-  CreateSpecialRow(IDS_ASH_STATUS_TRAY_ACCESSIBILITY_TITLE, this);
-
-  Layout();
-}
-
-void AccessibilityDetailedView::AppendAccessibilityList() {
-  CreateScrollableList();
-  ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
-
-  AccessibilityDelegate* delegate = WmShell::Get()->GetAccessibilityDelegate();
-  spoken_feedback_enabled_ = delegate->IsSpokenFeedbackEnabled();
-  spoken_feedback_view_ =
-      AddScrollListItem(bundle.GetLocalizedString(
-                            IDS_ASH_STATUS_TRAY_ACCESSIBILITY_SPOKEN_FEEDBACK),
-                        spoken_feedback_enabled_, spoken_feedback_enabled_);
-
-  // Large Cursor item is shown only in Login screen.
-  if (login_ == LoginStatus::NOT_LOGGED_IN) {
-    large_cursor_enabled_ = delegate->IsLargeCursorEnabled();
-    large_cursor_view_ =
-        AddScrollListItem(bundle.GetLocalizedString(
-                              IDS_ASH_STATUS_TRAY_ACCESSIBILITY_LARGE_CURSOR),
-                          large_cursor_enabled_, large_cursor_enabled_);
-  }
-
-  high_contrast_enabled_ = delegate->IsHighContrastEnabled();
-  high_contrast_view_ = AddScrollListItem(
-      bundle.GetLocalizedString(
-          IDS_ASH_STATUS_TRAY_ACCESSIBILITY_HIGH_CONTRAST_MODE),
-      high_contrast_enabled_, high_contrast_enabled_);
-  screen_magnifier_enabled_ = delegate->IsMagnifierEnabled();
-  screen_magnifier_view_ =
-      AddScrollListItem(bundle.GetLocalizedString(
-                            IDS_ASH_STATUS_TRAY_ACCESSIBILITY_SCREEN_MAGNIFIER),
-                        screen_magnifier_enabled_, screen_magnifier_enabled_);
-
-  // Don't show autoclick option at login screen.
-  if (login_ != LoginStatus::NOT_LOGGED_IN) {
-    autoclick_enabled_ = delegate->IsAutoclickEnabled();
-    autoclick_view_ = AddScrollListItem(
-        bundle.GetLocalizedString(IDS_ASH_STATUS_TRAY_ACCESSIBILITY_AUTOCLICK),
-        autoclick_enabled_, autoclick_enabled_);
-  }
-
-  virtual_keyboard_enabled_ = delegate->IsVirtualKeyboardEnabled();
-  virtual_keyboard_view_ =
-      AddScrollListItem(bundle.GetLocalizedString(
-                            IDS_ASH_STATUS_TRAY_ACCESSIBILITY_VIRTUAL_KEYBOARD),
-                        virtual_keyboard_enabled_, virtual_keyboard_enabled_);
-}
-
-void AccessibilityDetailedView::AppendHelpEntries() {
-  // Currently the help page requires a browser window.
-  // TODO(yoshiki): show this even on login/lock screen. crbug.com/158286
-  if (login_ == LoginStatus::NOT_LOGGED_IN || login_ == LoginStatus::LOCKED ||
-      WmShell::Get()->GetSessionStateDelegate()->IsInSecondaryLoginScreen())
-    return;
-
-  views::View* bottom_row = new View();
-  views::BoxLayout* layout = new
-      views::BoxLayout(views::BoxLayout::kHorizontal,
-                       kTrayMenuBottomRowPadding,
-                       kTrayMenuBottomRowPadding,
-                       kTrayMenuBottomRowPaddingBetweenItems);
-  layout->SetDefaultFlex(1);
-  bottom_row->SetLayoutManager(layout);
-
-  ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
-
-  TrayPopupLabelButton* help = new TrayPopupLabelButton(
-      this,
-      bundle.GetLocalizedString(
-          IDS_ASH_STATUS_TRAY_ACCESSIBILITY_LEARN_MORE));
-  bottom_row->AddChildView(help);
-  help_view_ = help;
-
-  TrayPopupLabelButton* settings = new TrayPopupLabelButton(
-      this,
-      bundle.GetLocalizedString(
-          IDS_ASH_STATUS_TRAY_ACCESSIBILITY_SETTINGS));
-  bottom_row->AddChildView(settings);
-  settings_view_ = settings;
-
-  AddChildView(bottom_row);
-}
-
-HoverHighlightView* AccessibilityDetailedView::AddScrollListItem(
-    const base::string16& text,
-    bool highlight,
-    bool checked) {
-  HoverHighlightView* container = new HoverHighlightView(this);
-  container->AddCheckableLabel(text, highlight, checked);
-  scroll_content()->AddChildView(container);
-  return container;
-}
-
-void AccessibilityDetailedView::OnViewClicked(views::View* sender) {
-  AccessibilityDelegate* delegate = WmShell::Get()->GetAccessibilityDelegate();
-  if (sender == footer()->content()) {
-    TransitionToDefaultView();
-  } else if (sender == spoken_feedback_view_) {
-    WmShell::Get()->RecordUserMetricsAction(
-        delegate->IsSpokenFeedbackEnabled() ?
-            ash::UMA_STATUS_AREA_DISABLE_SPOKEN_FEEDBACK :
-            ash::UMA_STATUS_AREA_ENABLE_SPOKEN_FEEDBACK);
-    delegate->ToggleSpokenFeedback(A11Y_NOTIFICATION_NONE);
-  } else if (sender == high_contrast_view_) {
-    WmShell::Get()->RecordUserMetricsAction(
-        delegate->IsHighContrastEnabled() ?
-            ash::UMA_STATUS_AREA_DISABLE_HIGH_CONTRAST :
-            ash::UMA_STATUS_AREA_ENABLE_HIGH_CONTRAST);
-    delegate->ToggleHighContrast();
-  } else if (sender == screen_magnifier_view_) {
-    WmShell::Get()->RecordUserMetricsAction(
-        delegate->IsMagnifierEnabled() ?
-            ash::UMA_STATUS_AREA_DISABLE_MAGNIFIER :
-            ash::UMA_STATUS_AREA_ENABLE_MAGNIFIER);
-    delegate->SetMagnifierEnabled(!delegate->IsMagnifierEnabled());
-  } else if (large_cursor_view_ && sender == large_cursor_view_) {
-    WmShell::Get()->RecordUserMetricsAction(
-        delegate->IsLargeCursorEnabled() ?
-            ash::UMA_STATUS_AREA_DISABLE_LARGE_CURSOR :
-            ash::UMA_STATUS_AREA_ENABLE_LARGE_CURSOR);
-    delegate->SetLargeCursorEnabled(!delegate->IsLargeCursorEnabled());
-  } else if (autoclick_view_ && sender == autoclick_view_) {
-    WmShell::Get()->RecordUserMetricsAction(
-        delegate->IsAutoclickEnabled() ?
-            ash::UMA_STATUS_AREA_DISABLE_AUTO_CLICK :
-            ash::UMA_STATUS_AREA_ENABLE_AUTO_CLICK);
-    delegate->SetAutoclickEnabled(!delegate->IsAutoclickEnabled());
-  } else if (virtual_keyboard_view_ && sender == virtual_keyboard_view_) {
-    WmShell::Get()->RecordUserMetricsAction(
-        delegate->IsVirtualKeyboardEnabled() ?
-            ash::UMA_STATUS_AREA_DISABLE_VIRTUAL_KEYBOARD :
-            ash::UMA_STATUS_AREA_ENABLE_VIRTUAL_KEYBOARD);
-    delegate->SetVirtualKeyboardEnabled(!delegate->IsVirtualKeyboardEnabled());
-  }
-}
-
-void AccessibilityDetailedView::ButtonPressed(views::Button* sender,
-                                              const ui::Event& event) {
-  SystemTrayDelegate* tray_delegate = WmShell::Get()->system_tray_delegate();
-  if (sender == help_view_)
-    tray_delegate->ShowAccessibilityHelp();
-  else if (sender == settings_view_)
-    tray_delegate->ShowAccessibilitySettings();
-}
-
-}  // namespace tray
-
-////////////////////////////////////////////////////////////////////////////////
-// ash::TrayAccessibility
-
-TrayAccessibility::TrayAccessibility(SystemTray* system_tray)
-    : TrayImageItem(system_tray, IDR_AURA_UBER_TRAY_ACCESSIBILITY),
-      default_(NULL),
-      detailed_popup_(NULL),
-      detailed_menu_(NULL),
-      request_popup_view_state_(A11Y_NONE),
-      tray_icon_visible_(false),
-      login_(GetCurrentLoginStatus()),
-      previous_accessibility_state_(GetAccessibilityState()),
-      show_a11y_menu_on_lock_screen_(true) {
-  DCHECK(system_tray);
-  WmShell::Get()->system_tray_notifier()->AddAccessibilityObserver(this);
-}
-
-TrayAccessibility::~TrayAccessibility() {
-  WmShell::Get()->system_tray_notifier()->RemoveAccessibilityObserver(this);
-}
-
-void TrayAccessibility::SetTrayIconVisible(bool visible) {
-  if (tray_view())
-    tray_view()->SetVisible(visible);
-  tray_icon_visible_ = visible;
-}
-
-tray::AccessibilityDetailedView* TrayAccessibility::CreateDetailedMenu() {
-  return new tray::AccessibilityDetailedView(this, login_);
-}
-
-bool TrayAccessibility::GetInitialVisibility() {
-  // Shows accessibility icon if any accessibility feature is enabled.
-  // Otherwise, doen't show it.
-  return GetAccessibilityState() != A11Y_NONE;
-}
-
-views::View* TrayAccessibility::CreateDefaultView(LoginStatus status) {
-  CHECK(default_ == NULL);
-
-  // Shows accessibility menu if:
-  // - on login screen (not logged in);
-  // - "Enable accessibility menu" on chrome://settings is checked;
-  // - or any of accessibility features is enabled
-  // Otherwise, not shows it.
-  AccessibilityDelegate* delegate = WmShell::Get()->GetAccessibilityDelegate();
-  if (login_ != LoginStatus::NOT_LOGGED_IN &&
-      !delegate->ShouldShowAccessibilityMenu() &&
-      // On login screen, keeps the initial visibility of the menu.
-      (status != LoginStatus::LOCKED || !show_a11y_menu_on_lock_screen_))
-    return NULL;
-
-  CHECK(default_ == NULL);
-  default_ = new tray::DefaultAccessibilityView(this);
-
-  return default_;
-}
-
-views::View* TrayAccessibility::CreateDetailedView(LoginStatus status) {
-  CHECK(detailed_popup_ == NULL);
-  CHECK(detailed_menu_ == NULL);
-
-  if (request_popup_view_state_) {
-    detailed_popup_ =
-        new tray::AccessibilityPopupView(this, request_popup_view_state_);
-    request_popup_view_state_ = A11Y_NONE;
-    return detailed_popup_;
-  } else {
-    WmShell::Get()->RecordUserMetricsAction(
-        ash::UMA_STATUS_AREA_DETAILED_ACCESSABILITY);
-    detailed_menu_ = CreateDetailedMenu();
-    return detailed_menu_;
-  }
-}
-
-void TrayAccessibility::DestroyDefaultView() {
-  default_ = NULL;
-}
-
-void TrayAccessibility::DestroyDetailedView() {
-  detailed_popup_ = NULL;
-  detailed_menu_ = NULL;
-}
-
-void TrayAccessibility::UpdateAfterLoginStatusChange(LoginStatus status) {
-  // Stores the a11y feature status on just entering the lock screen.
-  if (login_ != LoginStatus::LOCKED && status == LoginStatus::LOCKED)
-    show_a11y_menu_on_lock_screen_ = (GetAccessibilityState() != A11Y_NONE);
-
-  login_ = status;
-  SetTrayIconVisible(GetInitialVisibility());
-}
-
-void TrayAccessibility::OnAccessibilityModeChanged(
-    AccessibilityNotificationVisibility notify) {
-  SetTrayIconVisible(GetInitialVisibility());
-
-  uint32_t accessibility_state = GetAccessibilityState();
-  // We'll get an extra notification if a braille display is connected when
-  // spoken feedback wasn't already enabled.  This is because the braille
-  // connection state is already updated when spoken feedback is enabled so
-  // that the notifications can be consolidated into one.  Therefore, we
-  // return early if there's no change in the state that we keep track of.
-  if (accessibility_state == previous_accessibility_state_)
-    return;
-  // Contains bits for spoken feedback and braille display connected currently
-  // being enabled.
-  uint32_t being_enabled =
-      (accessibility_state & ~previous_accessibility_state_) &
-      (A11Y_SPOKEN_FEEDBACK | A11Y_BRAILLE_DISPLAY_CONNECTED);
-  if ((notify == A11Y_NOTIFICATION_SHOW) && being_enabled != A11Y_NONE) {
-    // Shows popup if |notify| is true and the spoken feedback is being enabled.
-    request_popup_view_state_ = being_enabled;
-    PopupDetailedView(kTrayPopupAutoCloseDelayForTextInSeconds, false);
-  } else {
-    if (detailed_popup_)
-      detailed_popup_->GetWidget()->Close();
-    if (detailed_menu_)
-      detailed_menu_->GetWidget()->Close();
-  }
-
-  previous_accessibility_state_ = accessibility_state;
-}
-
-}  // namespace ash