third_party/WebKit/Source/core/animation/CSSFontSizeInterpolationType.h

// Copyright 2016 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.

#ifndef CSSFontSizeInterpolationType_h
#define CSSFontSizeInterpolationType_h

#include "core/animation/CSSInterpolationType.h"

namespace blink {

class CSSFontSizeInterpolationType : public CSSInterpolationType {
 public:
  CSSFontSizeInterpolationType(PropertyHandle property)
      : CSSInterpolationType(property) {
    DCHECK_EQ(cssProperty(), CSSPropertyFontSize);
  }

  InterpolationValue maybeConvertUnderlyingValue(
      const InterpolationEnvironment&) const final;
  void apply(const InterpolableValue&,
             const NonInterpolableValue*,
             InterpolationEnvironment&) const final;

 private:
  InterpolationValue maybeConvertNeutral(const InterpolationValue& underlying,
                                         ConversionCheckers&) const final;
  InterpolationValue maybeConvertInitial(const StyleResolverState&,
                                         ConversionCheckers&) const final;
  InterpolationValue maybeConvertInherit(const StyleResolverState&,
                                         ConversionCheckers&) const final;
  InterpolationValue maybeConvertValue(const CSSValue&,
                                       const StyleResolverState&,
                                       ConversionCheckers&) const final;
};

}  // namespace blink

#endif  // CSSFontSizeInterpolationType_h