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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "core/layout/ng/ng_fragment_builder.h" | 5 #include "core/layout/ng/ng_fragment_builder.h" |
6 | 6 |
7 #include "core/layout/ng/ng_block_break_token.h" | 7 #include "core/layout/ng/ng_block_break_token.h" |
8 #include "core/layout/ng/ng_block_node.h" | 8 #include "core/layout/ng/ng_block_node.h" |
9 #include "core/layout/ng/ng_break_token.h" | 9 #include "core/layout/ng/ng_break_token.h" |
10 #include "core/layout/ng/ng_fragment.h" | 10 #include "core/layout/ng/ng_fragment.h" |
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73 | 73 |
74 return AddChild(child->PhysicalFragment(), child_offset); | 74 return AddChild(child->PhysicalFragment(), child_offset); |
75 } | 75 } |
76 | 76 |
77 NGFragmentBuilder& NGFragmentBuilder::AddChild( | 77 NGFragmentBuilder& NGFragmentBuilder::AddChild( |
78 RefPtr<NGPhysicalFragment> child, | 78 RefPtr<NGPhysicalFragment> child, |
79 const NGLogicalOffset& child_offset) { | 79 const NGLogicalOffset& child_offset) { |
80 DCHECK_EQ(type_, NGPhysicalFragment::kFragmentBox) | 80 DCHECK_EQ(type_, NGPhysicalFragment::kFragmentBox) |
81 << "Only box fragments can have children"; | 81 << "Only box fragments can have children"; |
82 | 82 |
83 // Update if we have fragmented in this flow. | 83 switch (child->Type()) { |
84 did_break_ |= child->IsBox() && !child->BreakToken()->IsFinished(); | 84 case NGPhysicalBoxFragment::kFragmentBox: |
85 // Update if we have fragmented in this flow. | |
86 did_break_ |= !child->BreakToken()->IsFinished(); | |
87 child_break_tokens_.push_back(child->BreakToken()); | |
88 break; | |
89 case NGPhysicalBoxFragment::kFragmentLineBox: | |
90 // NGInlineNode produces multiple line boxes in an anonymous box. Only | |
91 // the last break token is needed to be taken to parent. | |
ikilpatrick
2017/03/24 20:58:05
.nit ... is needed to be reported to the parent. ?
| |
92 DCHECK(child->BreakToken() && child->BreakToken()->InputNode() == node_); | |
93 last_inline_break_token_ = | |
94 child->BreakToken()->IsFinished() ? nullptr : child->BreakToken(); | |
95 break; | |
96 case NGPhysicalBoxFragment::kFragmentText: | |
97 DCHECK(!child->BreakToken()); | |
98 break; | |
ikilpatrick
2017/03/24 20:58:05
default:
NOTREACHED()?
| |
99 } | |
85 | 100 |
86 child_break_tokens_.push_back(child->BreakToken()); | |
87 children_.push_back(std::move(child)); | 101 children_.push_back(std::move(child)); |
88 offsets_.push_back(child_offset); | 102 offsets_.push_back(child_offset); |
89 | 103 |
90 return *this; | 104 return *this; |
91 } | 105 } |
92 | 106 |
93 NGFragmentBuilder& NGFragmentBuilder::AddFloatingObject( | 107 NGFragmentBuilder& NGFragmentBuilder::AddFloatingObject( |
94 RefPtr<NGFloatingObject> floating_object, | 108 RefPtr<NGFloatingObject> floating_object, |
95 const NGLogicalOffset& floating_object_offset) { | 109 const NGLogicalOffset& floating_object_offset) { |
96 positioned_floats_.push_back(floating_object); | 110 positioned_floats_.push_back(floating_object); |
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166 | 180 |
167 NGPhysicalSize physical_size = size_.ConvertToPhysical(writing_mode_); | 181 NGPhysicalSize physical_size = size_.ConvertToPhysical(writing_mode_); |
168 | 182 |
169 for (size_t i = 0; i < children_.size(); ++i) { | 183 for (size_t i = 0; i < children_.size(); ++i) { |
170 NGPhysicalFragment* child = children_[i].get(); | 184 NGPhysicalFragment* child = children_[i].get(); |
171 child->SetOffset(offsets_[i].ConvertToPhysical( | 185 child->SetOffset(offsets_[i].ConvertToPhysical( |
172 writing_mode_, direction_, physical_size, child->Size())); | 186 writing_mode_, direction_, physical_size, child->Size())); |
173 } | 187 } |
174 | 188 |
175 RefPtr<NGBreakToken> break_token; | 189 RefPtr<NGBreakToken> break_token; |
190 if (last_inline_break_token_) { | |
191 child_break_tokens_.push_back(std::move(last_inline_break_token_)); | |
192 did_break_ = true; | |
ikilpatrick
2017/03/24 20:58:05
does this need to check if last_inline_break_token
| |
193 } | |
176 if (did_break_) { | 194 if (did_break_) { |
177 break_token = NGBlockBreakToken::create( | 195 break_token = NGBlockBreakToken::create(node_.get(), used_block_size_, |
178 toNGBlockNode(node_.get()), used_block_size_, child_break_tokens_); | 196 child_break_tokens_); |
179 } else { | 197 } else { |
180 break_token = NGBlockBreakToken::create(node_.get()); | 198 break_token = NGBlockBreakToken::create(node_.get()); |
181 } | 199 } |
182 | 200 |
183 for (size_t i = 0; i < positioned_floats_.size(); ++i) { | 201 for (size_t i = 0; i < positioned_floats_.size(); ++i) { |
184 RefPtr<NGFloatingObject>& floating_object = positioned_floats_[i]; | 202 RefPtr<NGFloatingObject>& floating_object = positioned_floats_[i]; |
185 NGPhysicalFragment* floating_fragment = floating_object->fragment.get(); | 203 NGPhysicalFragment* floating_fragment = floating_object->fragment.get(); |
186 floating_fragment->SetOffset(floating_object_offsets_[i].ConvertToPhysical( | 204 floating_fragment->SetOffset(floating_object_offsets_[i].ConvertToPhysical( |
187 writing_mode_, direction_, physical_size, floating_fragment->Size())); | 205 writing_mode_, direction_, physical_size, floating_fragment->Size())); |
188 } | 206 } |
189 | 207 |
190 RefPtr<NGPhysicalBoxFragment> fragment = adoptRef(new NGPhysicalBoxFragment( | 208 RefPtr<NGPhysicalBoxFragment> fragment = adoptRef(new NGPhysicalBoxFragment( |
191 node_->GetLayoutObject(), physical_size, | 209 node_->GetLayoutObject(), physical_size, |
192 overflow_.ConvertToPhysical(writing_mode_), children_, positioned_floats_, | 210 overflow_.ConvertToPhysical(writing_mode_), children_, positioned_floats_, |
193 bfc_offset_, end_margin_strut_, std::move(break_token))); | 211 bfc_offset_, end_margin_strut_, std::move(break_token))); |
194 | 212 |
195 return adoptRef( | 213 return adoptRef( |
196 new NGLayoutResult(std::move(fragment), out_of_flow_descendants_, | 214 new NGLayoutResult(std::move(fragment), out_of_flow_descendants_, |
197 out_of_flow_positions_, unpositioned_floats_)); | 215 out_of_flow_positions_, unpositioned_floats_)); |
198 } | 216 } |
199 | 217 |
200 } // namespace blink | 218 } // namespace blink |
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