1// Copyright 2014 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#ifndef CONTENT_BROWSER_ACCESSIBILITY_ACCESSIBILITY_MODE_HELPER_H_
6#define CONTENT_BROWSER_ACCESSIBILITY_ACCESSIBILITY_MODE_HELPER_H_
7
8#include "content/common/accessibility_mode_enums.h"
9#include "content/common/content_export.h"
10
11namespace content {
12
13// Returns base accessibility mode constant, depends on OS version.
14CONTENT_EXPORT AccessibilityMode GetBaseAccessibilityMode();
15
16// Adds the given accessibility mode constant to the given accessibility mode
17// bitmap.
18CONTENT_EXPORT AccessibilityMode
19    AddAccessibilityModeTo(AccessibilityMode to, AccessibilityMode mode_to_add);
20
21// Removes the given accessibility mode constant from the given accessibility
22// mode bitmap, managing the bits that are shared with other modes such that a
23// bit will only be turned off when all modes that depend on it have been
24// removed.
25CONTENT_EXPORT AccessibilityMode
26    RemoveAccessibilityModeFrom(AccessibilityMode to,
27                                AccessibilityMode mode_to_remove);
28
29} //  namespace content
30
31#endif  // CONTENT_BROWSER_ACCESSIBILITY_ACCESSIBILITY_MODE_HELPER_H_
32