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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 "config.h"
#include "core/animation/AnimationInputHelpers.h"
#include "core/css/parser/CSSParser.h"
#include "core/css/resolver/CSSToStyleMap.h"
#include "wtf/text/StringBuilder.h"
namespace blink {
CSSPropertyID AnimationInputHelpers::keyframeAttributeToCSSPropertyID(const String& propertyName)
{
// Disallow prefixed properties.
if (propertyName[0] == '-' || isASCIIUpper(propertyName[0]))
return CSSPropertyInvalid;
if (propertyName == "cssFloat")
return CSSPropertyFloat;
StringBuilder builder;
for (size_t i = 0; i < propertyName.length(); ++i) {
if (isASCIIUpper(propertyName[i]))
builder.append('-');
builder.append(propertyName[i]);
}
return cssPropertyID(builder.toString());
}
PassRefPtr<TimingFunction> AnimationInputHelpers::parseTimingFunction(const String& string)
{
if (string.isEmpty())
return nullptr;
RefPtrWillBeRawPtr<CSSValue> value = CSSParser::parseSingleValue(CSSPropertyTransitionTimingFunction, string);
if (!value || !value->isValueList()) {
ASSERT(!value || value->isInitialValue() || value->isInheritedValue() || value->isUnsetValue());
return nullptr;
}
CSSValueList* valueList = toCSSValueList(value.get());
if (valueList->length() > 1)
return nullptr;
return CSSToStyleMap::mapAnimationTimingFunction(valueList->item(0), true);
}
} // namespace blink
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