[LayoutNG] Implement atomic inlines for LayoutNGInline

third_party/WebKit/Source/core/layout/ng/ng_inline_node.h

 // 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 NGInlineNode_h
 #define NGInlineNode_h
 
 #include "core/CoreExport.h"
 #include "core/layout/LayoutBlockFlow.h"
 #include "core/layout/ng/ng_layout_input_node.h"
+#include "core/layout/ng/ng_layout_result.h"
 #include "platform/fonts/FontFallbackPriority.h"
 #include "platform/fonts/shaping/ShapeResult.h"
 #include "platform/heap/Handle.h"
 #include "platform/text/TextDirection.h"
 #include "wtf/text/WTFString.h"
 
 #include <unicode/ubidi.h>
 #include <unicode/uscript.h>
 
 namespace blink {
 
 class ComputedStyle;
 class LayoutBlockFlow;
 class LayoutObject;
 class LayoutUnit;
 struct MinMaxContentSize;
 class NGConstraintSpace;
 class NGLayoutInlineItem;
 class NGLayoutInlineItemRange;
 class NGLayoutInlineItemsBuilder;
-class NGLayoutResult;
 class NGLineBuilder;
 
 // Represents an anonymous block box to be laid out, that contains consecutive
 // inline nodes and their descendants.
 class CORE_EXPORT NGInlineNode : public NGLayoutInputNode {
  public:
   NGInlineNode(LayoutObject* start_inline, LayoutBlockFlow*);
   ~NGInlineNode() override;
 
   LayoutBlockFlow* GetLayoutBlockFlow() const { return block_; }
@@ skipping 36 matching lines @@
   // calling the Layout method.
   void PrepareLayout();
   bool IsPrepareLayoutFinished() const { return !text_content_.isNull(); }
 
   void CollectInlines(LayoutObject* start, LayoutBlockFlow*);
   LayoutObject* CollectInlines(LayoutObject* start,
                                LayoutBlockFlow*,
                                NGLayoutInlineItemsBuilder*);
   void SegmentText();
   void ShapeText();
+  void LayoutAtomicInlines(const NGConstraintSpace&);
 
   LayoutObject* start_inline_;
   LayoutBlockFlow* block_;
   Member<NGLayoutInputNode> next_sibling_;
 
   // Text content for all inline items represented by a single NGInlineNode
   // instance. Encoded either as UTF-16 or latin-1 depending on content.
   String text_content_;
   Vector<NGLayoutInlineItem> items_;
 
-  // TODO(kojii): This should move to somewhere else when we move PrepareLayout
-  // to the correct place.
-  bool is_bidi_enabled_ = false;
+  unsigned has_atomic_inlines_ : 1;
+  unsigned is_bidi_enabled_ : 1;
 };
 
 // Class representing a single text node or styled inline element with text
 // content segmented by style, text direction, sideways rotation, font fallback
 // priority (text, symbol, emoji, etc) and script (but not by font).
 // In this representation TextNodes are merged up into their parent inline
 // element where possible.
 class NGLayoutInlineItem {
  public:
   NGLayoutInlineItem(unsigned start,
@@ skipping 13 matching lines @@
 
   unsigned StartOffset() const { return start_offset_; }
   unsigned EndOffset() const { return end_offset_; }
   TextDirection Direction() const {
     return bidi_level_ & 1 ? TextDirection::kRtl : TextDirection::kLtr;
   }
   UBiDiLevel BidiLevel() const { return bidi_level_; }
   UScriptCode Script() const { return script_; }
   const ComputedStyle* Style() const { return style_; }
   LayoutObject* GetLayoutObject() const { return layout_object_; }
+  const NGLayoutResult* GetLayoutResult() const { return layout_result_.get(); }
 
   void SetEndOffset(unsigned);
 
   LayoutUnit InlineSize() const;
   LayoutUnit InlineSize(unsigned start, unsigned end) const;
 
   void GetFallbackFonts(HashSet<const SimpleFontData*>*,
                         unsigned start,
                         unsigned end) const;
 
@@ skipping 11 matching lines @@
  private:
   unsigned start_offset_;
   unsigned end_offset_;
   UBiDiLevel bidi_level_;
   UScriptCode script_;
   FontFallbackPriority fallback_priority_;
   bool rotate_sideways_;
   const ComputedStyle* style_;
   RefPtr<const ShapeResult> shape_result_;
   LayoutObject* layout_object_;
+  RefPtr<const NGLayoutResult> layout_result_;
 
   friend class NGInlineNode;
 };
 
 inline void NGLayoutInlineItem::AssertOffset(unsigned offset) const {
   DCHECK(offset >= start_offset_ && offset < end_offset_);
 }
 
 inline void NGLayoutInlineItem::AssertEndOffset(unsigned offset) const {
   DCHECK(offset >= start_offset_ && offset <= end_offset_);
@@ skipping 48 matching lines @@
 
  private:
   NGLayoutInlineItem* start_item_;
   unsigned size_;
   unsigned start_index_;
 };
 
 }  // namespace blink
 
 #endif  // NGInlineNode_h