| // 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 NGMarginStrut_h |
| #define NGMarginStrut_h |
| |
| #include "core/CoreExport.h" |
| #include "platform/LayoutUnit.h" |
| |
| namespace blink { |
| |
| // This struct is used for the margin collapsing calculation. |
| struct CORE_EXPORT NGMarginStrut { |
| LayoutUnit positive_margin; |
| LayoutUnit negative_margin; |
| |
| // If this flag is set, we only Append non-quirky margins to this strut. |
| // See comment inside NGBlockLayoutAlgorithm for when this occurs. |
| bool is_quirky_container_start = false; |
| |
| // Appends negative or positive value to the current margin strut. |
| void Append(const LayoutUnit& value, bool is_quirky); |
| |
| // Sum up negative and positive margins of this strut. |
| LayoutUnit Sum() const; |
| |
| bool operator==(const NGMarginStrut& other) const; |
| bool operator!=(const NGMarginStrut& other) const { |
| return !(*this == other); |
| } |
| }; |
| |
| } // namespace blink |
| |
| #endif // NGMarginStrut_h |
