| // Copyright 2014 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 "base/logging.h" |
| #include "content/browser/accessibility/accessibility_mode_helper.h" |
| |
| namespace content { |
| |
| namespace { |
| |
| AccessibilityMode CastToAccessibilityMode(unsigned int int_mode) { |
| AccessibilityMode mode = static_cast<AccessibilityMode>(int_mode); |
| switch (mode) { |
| case AccessibilityModeOff: |
| case AccessibilityModeComplete: |
| case AccessibilityModeTreeOnly: |
| return mode; |
| } |
| DCHECK(false) << "Could not convert to AccessibilityMode: " << int_mode; |
| return AccessibilityModeOff; |
| } |
| |
| } // namespace |
| |
| AccessibilityMode GetBaseAccessibilityMode() { |
| AccessibilityMode accessibility_mode = AccessibilityModeOff; |
| return accessibility_mode; |
| } |
| |
| AccessibilityMode AddAccessibilityModeTo(AccessibilityMode to, |
| AccessibilityMode mode_to_add) { |
| return CastToAccessibilityMode(to | mode_to_add); |
| } |
| |
| AccessibilityMode RemoveAccessibilityModeFrom( |
| AccessibilityMode from, |
| AccessibilityMode mode_to_remove) { |
| unsigned int new_mode = from ^ (mode_to_remove & from); |
| return CastToAccessibilityMode(new_mode); |
| } |
| |
| } // namespace content |
