Top down version of algorithm to position margins and floats in LayoutNG

third_party/WebKit/Source/core/layout/ng/ng_fragment_builder.cc

 // 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.
 
 #include "core/layout/ng/ng_fragment_builder.h"
 
 #include "core/layout/ng/ng_block_node.h"
 #include "core/layout/ng/ng_break_token.h"
 #include "core/layout/ng/ng_fragment.h"
 #include "core/layout/ng/ng_physical_box_fragment.h"
@@ skipping 62 matching lines @@
 }
 
 NGFragmentBuilder& NGFragmentBuilder::AddFloatingObject(
     NGFloatingObject* floating_object,
     const NGLogicalOffset& floating_object_offset) {
   positioned_floats_.push_back(floating_object);
   floating_object_offsets_.push_back(floating_object_offset);
   return *this;
 }
 
+NGFragmentBuilder& NGFragmentBuilder::SetBfcOffset(
+    const NGLogicalOffset& offset) {
+  bfc_offset_ = offset;
+  return *this;
+}
+
 NGFragmentBuilder& NGFragmentBuilder::AddOutOfFlowChildCandidate(
     NGBlockNode* child,
     NGLogicalOffset child_offset) {
   out_of_flow_descendant_candidates_.add(child);
   NGStaticPosition child_position =
       NGStaticPosition::Create(writing_mode_, direction_, NGPhysicalOffset());
   out_of_flow_candidate_placements_.push_back(
       OutOfFlowPlacement{child_offset, child_position});
   child->SaveStaticOffsetForLegacy(child_offset);
   return *this;
@@ skipping 36 matching lines @@
 }
 
 NGFragmentBuilder& NGFragmentBuilder::AddOutOfFlowDescendant(
     NGBlockNode* descendant,
     const NGStaticPosition& position) {
   out_of_flow_descendants_.add(descendant);
   out_of_flow_positions_.push_back(position);
   return *this;
 }
 
-NGFragmentBuilder& NGFragmentBuilder::SetMarginStrutBlockStart(
-    const NGDeprecatedMarginStrut& from) {
-  margin_strut_.margin_block_start = from.margin_block_start;
-  margin_strut_.negative_margin_block_start = from.negative_margin_block_start;
-  return *this;
-}
-
-NGFragmentBuilder& NGFragmentBuilder::SetMarginStrutBlockEnd(
-    const NGDeprecatedMarginStrut& from) {
-  margin_strut_.margin_block_end = from.margin_block_end;
-  margin_strut_.negative_margin_block_end = from.negative_margin_block_end;
-  return *this;
-}
-
 NGPhysicalBoxFragment* NGFragmentBuilder::ToBoxFragment() {
   // TODO(layout-ng): Support text fragments
   DCHECK_EQ(type_, NGPhysicalFragment::kFragmentBox);
   DCHECK_EQ(offsets_.size(), children_.size());
 
   auto* break_token = break_token_.get();
   break_token_ = nullptr;
 
   NGPhysicalSize physical_size = size_.ConvertToPhysical(writing_mode_);
   HeapVector<Member<NGPhysicalFragment>> children;
@@ skipping 12 matching lines @@
   for (size_t i = 0; i < positioned_floats_.size(); ++i) {
     Member<NGFloatingObject>& floating_object = positioned_floats_[i];
     NGPhysicalFragment* floating_fragment = floating_object->fragment;
     floating_fragment->SetOffset(floating_object_offsets_[i].ConvertToPhysical(
         writing_mode_, direction_, physical_size, floating_fragment->Size()));
     positioned_floats.push_back(floating_object);
   }
 
   return new NGPhysicalBoxFragment(
       layout_object_, physical_size, overflow_.ConvertToPhysical(writing_mode_),
-      children, out_of_flow_descendants_, out_of_flow_positions_, margin_strut_,
-      unpositioned_floats_, positioned_floats_, break_token);
+      children, out_of_flow_descendants_, out_of_flow_positions_,
+      unpositioned_floats_, positioned_floats_, bfc_offset_, end_margin_strut_,
+      break_token);
 }
 
 NGPhysicalTextFragment* NGFragmentBuilder::ToTextFragment(NGInlineNode* node,
                                                           unsigned start_index,
                                                           unsigned end_index) {
   DCHECK_EQ(type_, NGPhysicalFragment::kFragmentText);
   DCHECK(children_.isEmpty());
   DCHECK(offsets_.isEmpty());
 
   HeapVector<Member<NGFloatingObject>> empty_unpositioned_floats;
@@ skipping 10 matching lines @@
 DEFINE_TRACE(NGFragmentBuilder) {
   visitor->trace(children_);
   visitor->trace(out_of_flow_descendant_candidates_);
   visitor->trace(out_of_flow_descendants_);
   visitor->trace(positioned_floats_);
   visitor->trace(unpositioned_floats_);
   visitor->trace(break_token_);
 }
 
 }  // namespace blink