| // 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 NGFragmentBase_h |
| #define NGFragmentBase_h |
| |
| #include "core/CoreExport.h" |
| #include "core/layout/ng/ng_physical_constraint_space.h" |
| #include "core/layout/ng/ng_writing_mode.h" |
| #include "core/layout/ng/ng_units.h" |
| #include "platform/LayoutUnit.h" |
| #include "platform/heap/Handle.h" |
| #include "wtf/Vector.h" |
| |
| namespace blink { |
| |
| class NGPhysicalFragmentBase; |
| |
| class CORE_EXPORT NGFragmentBase : public GarbageCollected<NGFragmentBase> { |
| public: |
| NGWritingMode WritingMode() const { |
| return static_cast<NGWritingMode>(writing_mode_); |
| } |
| NGDirection Direction() const { return static_cast<NGDirection>(direction_); } |
| |
| // Returns the border-box size. |
| LayoutUnit InlineSize() const; |
| LayoutUnit BlockSize() const; |
| |
| // Returns the total size, including the contents outside of the border-box. |
| LayoutUnit InlineOverflow() const; |
| LayoutUnit BlockOverflow() const; |
| |
| // Returns the offset relative to the parent fragement's content-box. |
| LayoutUnit InlineOffset() const; |
| LayoutUnit BlockOffset() const; |
| |
| NGPhysicalFragmentBase* PhysicalFragment() const { |
| return physical_fragment_; |
| }; |
| |
| DECLARE_TRACE(); |
| |
| protected: |
| NGFragmentBase(NGWritingMode writing_mode, |
| NGDirection direction, |
| NGPhysicalFragmentBase* physical_fragment) |
| : physical_fragment_(physical_fragment), |
| writing_mode_(writing_mode), |
| direction_(direction) {} |
| |
| Member<NGPhysicalFragmentBase> physical_fragment_; |
| |
| unsigned writing_mode_ : 3; |
| unsigned direction_ : 1; |
| }; |
| |
| } // namespace blink |
| |
| #endif // NGFragmentBase_h |