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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.
#include "third_party/blink/renderer/core/layout/ng/geometry/ng_margin_strut.h"
#include <algorithm>
namespace blink {
LayoutUnit NGMarginStrut::Sum() const {
return std::max(quirky_positive_margin, positive_margin) + negative_margin;
}
LayoutUnit NGMarginStrut::QuirkyContainerSum() const {
return positive_margin + negative_margin;
}
void NGMarginStrut::Append(const LayoutUnit& value, bool is_quirky) {
if (is_quirky_container_start && is_quirky)
return;
if (value < 0) {
negative_margin = std::min(value, negative_margin);
} else {
if (is_quirky) {
DCHECK(value >= 0);
quirky_positive_margin = std::max(value, quirky_positive_margin);
} else {
positive_margin = std::max(value, positive_margin);
}
}
}
bool NGMarginStrut::IsEmpty() const {
return positive_margin == LayoutUnit() && negative_margin == LayoutUnit() &&
quirky_positive_margin == LayoutUnit();
}
bool NGMarginStrut::operator==(const NGMarginStrut& other) const {
return positive_margin == other.positive_margin &&
negative_margin == other.negative_margin &&
quirky_positive_margin == other.quirky_positive_margin &&
is_quirky_container_start == other.is_quirky_container_start;
}
} // namespace blink
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