ash/default_accessibility_delegate.cc

   1 // Copyright 2013 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/default_accessibility_delegate.h"
   6
   7 #include <limits>
   8
   9 namespace ash {
  10 namespace internal {
  11
  12 DefaultAccessibilityDelegate::DefaultAccessibilityDelegate()
  13     : spoken_feedback_enabled_(false),
  14       high_contrast_enabled_(false),
  15       screen_magnifier_enabled_(false),
  16       screen_magnifier_type_(kDefaultMagnifierType),
  17       large_cursor_enabled_(false),
  18       autoclick_enabled_(false),
  19       virtual_keyboard_enabled_(false),
  20       accessibility_alert_(A11Y_ALERT_NONE) {
  21 }
  22
  23 DefaultAccessibilityDelegate::~DefaultAccessibilityDelegate() {}
  24
  25 bool DefaultAccessibilityDelegate::IsSpokenFeedbackEnabled() const {
  26   return spoken_feedback_enabled_;
  27 }
  28
  29 void DefaultAccessibilityDelegate::ToggleHighContrast() {
  30   high_contrast_enabled_ = !high_contrast_enabled_;
  31 }
  32
  33 bool DefaultAccessibilityDelegate::IsHighContrastEnabled() const {
  34   return high_contrast_enabled_;
  35 }
  36
  37 void DefaultAccessibilityDelegate::SetMagnifierEnabled(bool enabled) {
  38   screen_magnifier_enabled_ = enabled;
  39 }
  40
  41 void DefaultAccessibilityDelegate::SetMagnifierType(MagnifierType type) {
  42   screen_magnifier_type_ = type;
  43 }
  44
  45 bool DefaultAccessibilityDelegate::IsMagnifierEnabled() const {
  46   return screen_magnifier_enabled_;
  47 }
  48
  49 MagnifierType DefaultAccessibilityDelegate::GetMagnifierType() const {
  50   return screen_magnifier_type_;
  51 }
  52
  53 void DefaultAccessibilityDelegate::SetLargeCursorEnabled(bool enabled) {
  54   large_cursor_enabled_ = enabled;
  55 }
  56
  57 bool DefaultAccessibilityDelegate::IsLargeCursorEnabled() const {
  58   return large_cursor_enabled_;
  59 }
  60
  61 void DefaultAccessibilityDelegate::SetAutoclickEnabled(bool enabled) {
  62   autoclick_enabled_ = enabled;
  63 }
  64
  65 bool DefaultAccessibilityDelegate::IsAutoclickEnabled() const {
  66   return autoclick_enabled_;
  67 }
  68
  69 void DefaultAccessibilityDelegate::SetVirtualKeyboardEnabled(bool enabled) {
  70   virtual_keyboard_enabled_ = enabled;
  71 }
  72
  73 bool DefaultAccessibilityDelegate::IsVirtualKeyboardEnabled() const {
  74   return virtual_keyboard_enabled_;
  75 }
  76
  77 bool DefaultAccessibilityDelegate::ShouldShowAccessibilityMenu() const {
  78   return spoken_feedback_enabled_ ||
  79          high_contrast_enabled_ ||
  80          screen_magnifier_enabled_ ||
  81          large_cursor_enabled_ ||
  82          autoclick_enabled_ ||
  83          virtual_keyboard_enabled_;
  84 }
  85
  86 bool DefaultAccessibilityDelegate::IsBrailleDisplayConnected() const {
  87   return false;
  88 }
  89
  90 void DefaultAccessibilityDelegate::SilenceSpokenFeedback() const {
  91 }
  92
  93 void DefaultAccessibilityDelegate::ToggleSpokenFeedback(
  94     AccessibilityNotificationVisibility notify) {
  95   spoken_feedback_enabled_ = !spoken_feedback_enabled_;
  96 }
  97
  98 void DefaultAccessibilityDelegate::SaveScreenMagnifierScale(double scale) {
  99 }
 100
 101 double DefaultAccessibilityDelegate::GetSavedScreenMagnifierScale() {
 102   return std::numeric_limits<double>::min();
 103 }
 104
 105 void DefaultAccessibilityDelegate::TriggerAccessibilityAlert(
 106     AccessibilityAlert alert) {
 107   accessibility_alert_ = alert;
 108 }
 109
 110 AccessibilityAlert DefaultAccessibilityDelegate::GetLastAccessibilityAlert() {
 111   return accessibility_alert_;
 112 }
 113
 114 base::TimeDelta DefaultAccessibilityDelegate::PlayShutdownSound() const {
 115   return base::TimeDelta();
 116 }
 117
 118 }  // namespace internal
 119 }  // namespace ash