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// Copyright 2017 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 "third_party/blink/renderer/core/css/cssom/css_math_invert.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_union_cssnumericvalue_double.h"
#include "third_party/blink/renderer/core/css/css_math_expression_node.h"
#include "third_party/blink/renderer/core/css/cssom/css_numeric_sum_value.h"
#include "third_party/blink/renderer/platform/wtf/text/string_builder.h"
namespace blink {
V8CSSNumberish* CSSMathInvert::value() {
return MakeGarbageCollected<V8CSSNumberish>(value_);
}
absl::optional<CSSNumericSumValue> CSSMathInvert::SumValue() const {
auto sum = value_->SumValue();
if (!sum || sum->terms.size() != 1)
return absl::nullopt;
for (auto& unit_exponent : sum->terms[0].units)
unit_exponent.value *= -1;
sum->terms[0].value = 1.0 / sum->terms[0].value;
return sum;
}
void CSSMathInvert::BuildCSSText(Nested nested,
ParenLess paren_less,
StringBuilder& result) const {
if (paren_less == ParenLess::kNo)
result.Append(nested == Nested::kYes ? "(" : "calc(");
result.Append("1 / ");
value_->BuildCSSText(Nested::kYes, ParenLess::kNo, result);
if (paren_less == ParenLess::kNo)
result.Append(")");
}
CSSMathExpressionNode* CSSMathInvert::ToCalcExpressionNode() const {
CSSMathExpressionNode* right_side = value_->ToCalcExpressionNode();
if (!right_side)
return nullptr;
return CSSMathExpressionBinaryOperation::Create(
CSSMathExpressionNumericLiteral::Create(
1, CSSPrimitiveValue::UnitType::kNumber, false),
right_side, CSSMathOperator::kDivide);
}
} // namespace blink
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