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// 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 THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_CSS_TRANSFORM_ORIGIN_INTERPOLATION_TYPE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_CSS_TRANSFORM_ORIGIN_INTERPOLATION_TYPE_H_
#include "third_party/blink/renderer/core/animation/css_length_list_interpolation_type.h"
#include "third_party/blink/renderer/core/animation/css_position_axis_list_interpolation_type.h"
#include "third_party/blink/renderer/core/animation/length_interpolation_functions.h"
#include "third_party/blink/renderer/core/animation/list_interpolation_functions.h"
#include "third_party/blink/renderer/core/css/css_value_list.h"
namespace blink {
class CSSTransformOriginInterpolationType
: public CSSLengthListInterpolationType {
public:
CSSTransformOriginInterpolationType(PropertyHandle property)
: CSSLengthListInterpolationType(property) {}
private:
InterpolationValue MaybeConvertValue(const CSSValue& value,
const StyleResolverState*,
ConversionCheckers&) const final {
const CSSValueList& list = ToCSSValueList(value);
DCHECK_GE(list.length(), 2u);
return ListInterpolationFunctions::CreateList(
3, [&list](wtf_size_t index) {
if (index == list.length()) {
return LengthInterpolationFunctions::MaybeConvertCSSValue(
*CSSPrimitiveValue::Create(
0, CSSPrimitiveValue::UnitType::kPixels));
}
const CSSValue& item = list.Item(index);
if (index < 2)
return CSSPositionAxisListInterpolationType::
ConvertPositionAxisCSSValue(item);
return LengthInterpolationFunctions::MaybeConvertCSSValue(item);
});
}
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_CSS_TRANSFORM_ORIGIN_INTERPOLATION_TYPE_H_
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