[LayoutNG] Paint inlines from the fragment tree

third_party/WebKit/Source/core/layout/ng/ng_physical_fragment.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 NGPhysicalFragment_h
 #define NGPhysicalFragment_h
 
 #include "core/CoreExport.h"
 #include "core/layout/ng/geometry/ng_box_strut.h"
 #include "core/layout/ng/geometry/ng_physical_offset.h"
 #include "core/layout/ng/geometry/ng_physical_size.h"
 #include "core/layout/ng/ng_break_token.h"
 #include "platform/LayoutUnit.h"
+#include "platform/graphics/paint/DisplayItemClient.h"
 #include "platform/heap/Handle.h"
 #include "platform/wtf/RefPtr.h"
 #include "platform/wtf/Vector.h"
 
 namespace blink {
 
 class ComputedStyle;
 class LayoutObject;
 
 // The NGPhysicalFragment contains the output geometry from layout. The
 // fragment stores all of its information in the physical coordinate system for
 // use by paint, hit-testing etc.
 //
 // The fragment keeps a pointer back to the LayoutObject which generated it.
 // Once we have transitioned fully to LayoutNG it should be a const pointer
 // such that paint/hit-testing/etc don't modify it.
 //
 // Layout code should only access geometry information through the
 // NGFragment wrapper classes which transforms information into the logical
 // coordinate system.
-class CORE_EXPORT NGPhysicalFragment : public RefCounted<NGPhysicalFragment> {
+class CORE_EXPORT NGPhysicalFragment : public RefCounted<NGPhysicalFragment>,
+                                       public DisplayItemClient {
  public:
   enum NGFragmentType {
     kFragmentBox = 0,
     kFragmentText = 1,
     kFragmentLineBox = 2
     // When adding new values, make sure the bit size of |type_| is large
     // enough to store.
   };
 
   // Which border edges should be painted. Due to fragmentation one or more may
@@ skipping 12 matching lines @@
 
   // The accessors in this class shouldn't be used by layout code directly,
   // instead should be accessed by the NGFragmentBase classes. These accessors
   // exist for paint, hit-testing, etc.
 
   // Returns the border-box size.
   NGPhysicalSize Size() const { return size_; }
 
   // Bitmask for border edges, see NGPaintBorderEdge.
   unsigned BorderEdges() const { return paint_border_edge_; }
+
   NGPixelSnappedPhysicalBoxStrut BorderWidths() const;
 
   // Returns the offset relative to the parent fragment's content-box.
   NGPhysicalOffset Offset() const {
     DCHECK(is_placed_);
     return offset_;
   }
 
   NGBreakToken* BreakToken() const { return break_token_.Get(); }
   const ComputedStyle& Style() const;
 
   // GetLayoutObject should only be used when necessary for compatibility
   // with LegacyLayout.
   LayoutObject* GetLayoutObject() const { return layout_object_; }
 
+  // Legacy LayoutObject methods. Need to be reviewed.
+  bool HasOverflowClip() const { return false; }
+
+  // DisplayItemClient methods
+  String DebugName() const override { return "NGPhysicalFragment"; }
+  LayoutRect VisualRect() const {
+    return LayoutRect(LayoutPoint(), LayoutSize(Size().width, Size().height));
+  }
+
+  LayoutRect VisualOverflowRect() const {
+    // TODO(layout-dev): Implement?
+    return VisualRect();
+  }
+
   // Should only be used by the parent fragment's layout.
   void SetOffset(NGPhysicalOffset offset) {
     DCHECK(!is_placed_);
     offset_ = offset;
     is_placed_ = true;
   }
 
   bool IsPlaced() const { return is_placed_; }
-
   String ToString() const;
 
   // Override RefCounted's deref() to ensure operator delete is called on the
   // appropriate subclass type.
   void Deref() const {
     if (DerefBase())
       Destroy();
   }
 
  protected:
@@ skipping 11 matching lines @@
   unsigned is_placed_ : 1;
   unsigned paint_border_edge_ : 4;  // NGPaintBorderEdge
 
  private:
   void Destroy() const;
 };
 
 }  // namespace blink
 
 #endif  // NGPhysicalFragment_h