| // 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 NGDerivedConstraintSpace_h |
| #define NGDerivedConstraintSpace_h |
| |
| #include "core/CoreExport.h" |
| #include "core/layout/ng/ng_constraint_space.h" |
| #include "core/layout/ng/ng_units.h" |
| #include "platform/LayoutUnit.h" |
| #include "wtf/DoublyLinkedList.h" |
| |
| namespace blink { |
| |
| class CORE_EXPORT NGDerivedConstraintSpace final : public NGConstraintSpace { |
| public: |
| // Constructs a NGConstraintSpace from legacy layout object. |
| static NGDerivedConstraintSpace* CreateFromLayoutObject(const LayoutBox&); |
| |
| NGDerivedConstraintSpace(NGWritingMode, |
| NGLogicalSize container_size, |
| bool inline_triggers, |
| bool block_triggers, |
| bool fixed_inline, |
| bool fixed_block, |
| NGFragmentationType); |
| |
| NGLogicalOffset Offset() const { return offset_; } |
| NGLogicalSize Size() const override { return size_; } |
| NGDirection Direction() const { return direction_; } |
| |
| // TODO(layout-ng): All exclusion operations on a NGDerivedConstraintSpace |
| // should be performed on it's parent if it exists. This is so that if a float |
| // is added by a child an arbitary sibling can avoid/clear that float. |
| // Alternatively the list of exclusions could be shared between constraint |
| // spaces. |
| |
| DEFINE_INLINE_VIRTUAL_TRACE() { |
| visitor->trace(parent_); |
| NGConstraintSpace::trace(visitor); |
| } |
| |
| private: |
| Member<NGConstraintSpace> parent_; |
| NGLogicalOffset offset_; |
| |
| // TODO(layout-ng) move to NGPhysicalConstraintSpace? |
| NGLogicalSize size_; |
| |
| // TODO(layout-ng) move to NGConstraintSpace? |
| NGDirection direction_; |
| }; |
| |
| } // namespace blink |
| |
| #endif // NGDerivedConstraintSpace_h |