Introduce AccessibiltyDelegate

I'll incorporate changes in https://codereview.chromium.org/27238008 when it's landed.

BUG=none

Review URL: https://codereview.chromium.org/37663004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@230619 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 87 insertions, 0 deletions

diff --git a/ash/default_accessibility_delegate.cc b/ash/default_accessibility_delegate.cc
new file mode 100644
index 0000000..bfc6b50
--- /dev/null
+++ b/ash/default_accessibility_delegate.cc
@@ -0,0 +1,87 @@
+// Copyright 2013 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/default_accessibility_delegate.h"
+
+#include <limits>
+
+namespace ash {
+namespace internal {
+
+DefaultAccessibilityDelegate::DefaultAccessibilityDelegate()
+    : spoken_feedback_enabled_(false),
+      high_contrast_enabled_(false),
+      screen_magnifier_enabled_(false),
+      screen_magnifier_type_(kDefaultMagnifierType),
+      large_cursor_enabled_(false),
+      autoclick_enabled_(false) {
+}
+
+DefaultAccessibilityDelegate::~DefaultAccessibilityDelegate() {}
+
+bool DefaultAccessibilityDelegate::IsSpokenFeedbackEnabled() const {
+  return spoken_feedback_enabled_;
+}
+
+void DefaultAccessibilityDelegate::ToggleHighContrast() {
+  high_contrast_enabled_ = !high_contrast_enabled_;
+}
+
+bool DefaultAccessibilityDelegate::IsHighContrastEnabled() const {
+  return high_contrast_enabled_;
+}
+
+void DefaultAccessibilityDelegate::SetMagnifierEnabled(bool enabled) {
+  screen_magnifier_enabled_ = enabled;
+}
+
+void DefaultAccessibilityDelegate::SetMagnifierType(MagnifierType type) {
+  screen_magnifier_type_ = type;
+}
+
+bool DefaultAccessibilityDelegate::IsMagnifierEnabled() const {
+  return screen_magnifier_enabled_;
+}
+
+MagnifierType DefaultAccessibilityDelegate::GetMagnifierType() const {
+  return screen_magnifier_type_;
+}
+
+void DefaultAccessibilityDelegate::SetLargeCursorEnabled(bool enabled) {
+  large_cursor_enabled_ = enabled;
+}
+
+bool DefaultAccessibilityDelegate::IsLargeCursorEnabled() const {
+  return large_cursor_enabled_;
+}
+
+void DefaultAccessibilityDelegate::SetAutoclickEnabled(bool enabled) {
+  autoclick_enabled_ = enabled;
+}
+
+bool DefaultAccessibilityDelegate::IsAutoclickEnabled() const {
+  return autoclick_enabled_;
+}
+
+bool DefaultAccessibilityDelegate::ShouldAlwaysShowAccessibilityMenu() const {
+  return false;
+}
+
+void DefaultAccessibilityDelegate::SilenceSpokenFeedback() const {
+}
+
+void DefaultAccessibilityDelegate::ToggleSpokenFeedback(
+    AccessibilityNotificationVisibility notify) {
+  spoken_feedback_enabled_ = !spoken_feedback_enabled_;
+}
+
+void DefaultAccessibilityDelegate::SaveScreenMagnifierScale(double scale) {
+}
+
+double DefaultAccessibilityDelegate::GetSavedScreenMagnifierScale() {
+  return std::numeric_limits<double>::min();
+}
+
+}  // namespace internal
+}  // namespace ash