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