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// 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
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