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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 namespace blink { | 7 namespace blink { |
8 | 8 |
9 NGFragmentBuilder::NGFragmentBuilder( | 9 NGFragmentBuilder::NGFragmentBuilder( |
10 NGPhysicalFragmentBase::NGFragmentType type) | 10 NGPhysicalFragmentBase::NGFragmentType type) |
11 : type_(type), | 11 : type_(type), |
12 writing_mode_(HorizontalTopBottom), | 12 writing_mode_(HorizontalTopBottom), |
13 direction_(LeftToRight), | 13 direction_(LeftToRight), |
14 is_margin_strut_block_start_updated_(false), | 14 is_margin_strut_block_start_updated_(false) {} |
15 is_margin_strut_block_end_updated_(false) {} | |
16 | 15 |
17 NGFragmentBuilder& NGFragmentBuilder::SetWritingMode( | 16 NGFragmentBuilder& NGFragmentBuilder::SetWritingMode( |
18 NGWritingMode writing_mode) { | 17 NGWritingMode writing_mode) { |
19 writing_mode_ = writing_mode; | 18 writing_mode_ = writing_mode; |
20 return *this; | 19 return *this; |
21 } | 20 } |
22 | 21 |
23 NGFragmentBuilder& NGFragmentBuilder::SetDirection(NGDirection direction) { | 22 NGFragmentBuilder& NGFragmentBuilder::SetDirection(NGDirection direction) { |
24 direction_ = direction; | 23 direction_ = direction; |
25 return *this; | 24 return *this; |
(...skipping 21 matching lines...) Expand all Loading... |
47 | 46 |
48 NGFragmentBuilder& NGFragmentBuilder::AddChild(NGFragment* child, | 47 NGFragmentBuilder& NGFragmentBuilder::AddChild(NGFragment* child, |
49 NGLogicalOffset offset) { | 48 NGLogicalOffset offset) { |
50 DCHECK_EQ(type_, NGPhysicalFragmentBase::FragmentBox) | 49 DCHECK_EQ(type_, NGPhysicalFragmentBase::FragmentBox) |
51 << "Only box fragments can have children"; | 50 << "Only box fragments can have children"; |
52 children_.append(child->PhysicalFragment()); | 51 children_.append(child->PhysicalFragment()); |
53 offsets_.append(offset); | 52 offsets_.append(offset); |
54 return *this; | 53 return *this; |
55 } | 54 } |
56 | 55 |
57 NGFragmentBuilder& NGFragmentBuilder::SetMarginStrutBlockStart( | 56 NGFragmentBuilder& NGFragmentBuilder::UpdateMarginStrut( |
58 const NGMarginStrut& from) { | 57 const NGMarginStrut& from) { |
| 58 if (!is_margin_strut_block_start_updated_) |
| 59 SetMarginStrutBlockStart(from); |
| 60 SetMarginStrutBlockEnd(from); |
| 61 return *this; |
| 62 } |
| 63 |
| 64 void NGFragmentBuilder::SetMarginStrutBlockStart(const NGMarginStrut& from) { |
59 DCHECK(!is_margin_strut_block_start_updated_); | 65 DCHECK(!is_margin_strut_block_start_updated_); |
60 margin_strut_.margin_block_start = from.margin_block_start; | 66 margin_strut_.margin_block_start = from.margin_block_start; |
61 margin_strut_.negative_margin_block_start = from.negative_margin_block_start; | 67 margin_strut_.negative_margin_block_start = from.negative_margin_block_start; |
62 is_margin_strut_block_start_updated_ = true; | 68 is_margin_strut_block_start_updated_ = true; |
63 return *this; | |
64 } | 69 } |
65 | 70 |
66 NGFragmentBuilder& NGFragmentBuilder::SetMarginStrutBlockEnd( | 71 void NGFragmentBuilder::SetMarginStrutBlockEnd(const NGMarginStrut& from) { |
67 const NGMarginStrut& from) { | |
68 DCHECK(!is_margin_strut_block_end_updated_); | |
69 margin_strut_.margin_block_end = from.margin_block_end; | 72 margin_strut_.margin_block_end = from.margin_block_end; |
70 margin_strut_.negative_margin_block_end = from.negative_margin_block_end; | 73 margin_strut_.negative_margin_block_end = from.negative_margin_block_end; |
71 is_margin_strut_block_end_updated_ = true; | |
72 return *this; | |
73 } | 74 } |
74 | 75 |
75 NGPhysicalFragment* NGFragmentBuilder::ToFragment() { | 76 NGPhysicalFragment* NGFragmentBuilder::ToFragment() { |
76 // TODO(layout-ng): Support text fragments | 77 // TODO(layout-ng): Support text fragments |
77 DCHECK_EQ(type_, NGPhysicalFragmentBase::FragmentBox); | 78 DCHECK_EQ(type_, NGPhysicalFragmentBase::FragmentBox); |
78 DCHECK_EQ(offsets_.size(), children_.size()); | 79 DCHECK_EQ(offsets_.size(), children_.size()); |
79 | 80 |
80 NGPhysicalSize physical_size = size_.ConvertToPhysical(writing_mode_); | 81 NGPhysicalSize physical_size = size_.ConvertToPhysical(writing_mode_); |
81 HeapVector<Member<const NGPhysicalFragmentBase>> children; | 82 HeapVector<Member<const NGPhysicalFragmentBase>> children; |
82 children.reserveCapacity(children_.size()); | 83 children.reserveCapacity(children_.size()); |
83 | 84 |
84 for (size_t i = 0; i < children_.size(); ++i) { | 85 for (size_t i = 0; i < children_.size(); ++i) { |
85 NGPhysicalFragmentBase* child = children_[i].get(); | 86 NGPhysicalFragmentBase* child = children_[i].get(); |
86 child->SetOffset(offsets_[i].ConvertToPhysical( | 87 child->SetOffset(offsets_[i].ConvertToPhysical( |
87 writing_mode_, direction_, physical_size, child->Size())); | 88 writing_mode_, direction_, physical_size, child->Size())); |
88 children.append(child); | 89 children.append(child); |
89 } | 90 } |
90 return new NGPhysicalFragment(physical_size, | 91 return new NGPhysicalFragment(physical_size, |
91 overflow_.ConvertToPhysical(writing_mode_), | 92 overflow_.ConvertToPhysical(writing_mode_), |
92 children, margin_strut_); | 93 children, margin_strut_); |
93 } | 94 } |
94 | 95 |
95 } // namespace blink | 96 } // namespace blink |
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