| // 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 NGBlockLayoutAlgorithm_h |
| #define NGBlockLayoutAlgorithm_h |
| |
| #include "wtf/RefPtr.h" |
| |
| namespace blink { |
| |
| class ComputedStyle; |
| class LayoutBox; |
| class NGConstraintSpace; |
| class NGFragment; |
| |
| // A class for general block layout (e.g. a <div> with no special style). |
| // Lays out the children in sequence. |
| class NGBlockLayoutAlgorithm { |
| public: |
| NGBlockLayoutAlgorithm(const ComputedStyle*); |
| |
| // Actual layout implementation. Lays out the children in sequence within |
| // the constraints given by the NGConstraintSpace. Returns a fragment |
| // with the resulting layout information. |
| // This function can not be const because for interruptible layout, we have |
| // to be able to store state information. |
| NGFragment* layout(const NGConstraintSpace&); |
| private: |
| RefPtr<const ComputedStyle> m_style; |
| }; |
| |
| } // namespace blink |
| |
| #endif // NGBlockLayoutAlgorithm_h |