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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 #ifndef NGFragmentBuilder_h | 5 #ifndef NGFragmentBuilder_h |
6 #define NGFragmentBuilder_h | 6 #define NGFragmentBuilder_h |
7 | 7 |
8 #include "core/layout/ng/ng_physical_fragment.h" | 8 #include "core/layout/ng/ng_physical_fragment.h" |
9 #include "core/layout/ng/ng_units.h" | 9 #include "core/layout/ng/ng_units.h" |
10 | 10 |
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48 // if (child->position == (Absolute or Fixed)) | 48 // if (child->position == (Absolute or Fixed)) |
49 // builder->AddOutOfFlowChildCandidate(child); | 49 // builder->AddOutOfFlowChildCandidate(child); |
50 // else | 50 // else |
51 // fragment = child->Layout() | 51 // fragment = child->Layout() |
52 // builder->AddChild(fragment) | 52 // builder->AddChild(fragment) |
53 // end | 53 // end |
54 // | 54 // |
55 // Part 2: layout algorithm positions out-of-flow descendants. | 55 // Part 2: layout algorithm positions out-of-flow descendants. |
56 // | 56 // |
57 // builder->SetInlineSize/SetBlockSize | 57 // builder->SetInlineSize/SetBlockSize |
58 // builder->GetAndClearOutOfFlowDescendantCandidates(oof_candidates) | 58 // builder->GetAndClearOutOfFlowDescendantCandidates(oof_candidates); |
59 // NGOutOfFlowLayoutPart out_of_flow_layout(container_style, | 59 // NGOutOfFlowLayoutPart out_of_flow_layout(container_style, |
60 // builder->Size()); | 60 // builder->Size()); |
61 // while (oof_candidates.size() > 0) | 61 // while (oof_candidates.size() > 0) |
62 // { | 62 // { |
63 // candidate = oof_candidates.shift() | 63 // candidate = oof_candidates.shift(); |
64 // if (out_of_flow_layout.StartLayout(candidate)) | 64 // if (IsContainingBlockForAbsoluteChild(style, candidate_style)) { |
65 // NGFragmentBase* fragment; | 65 // NGFragmentBase* fragment; |
66 // NGLogicalOffset* fragment_offset; | 66 // NGLogicalOffset* fragment_offset; |
67 // while (out_of_flow_layout.Layout(&fragment, &fragment_offset) == | 67 // out_of_flow_layout.Layout(candidate, &fragment, &offset); |
68 // kNotFinished) | |
69 // ; | |
70 // builder->AddChild(fragment); | 68 // builder->AddChild(fragment); |
71 // builder->GetAndClearOutOfFlowDescendantCandidates(child_oof_candidates) | 69 // builder->GetAndClearOutOfFlowDescendantCandidates(child_oof_candidates)
; |
72 // oof_candidates.prepend(child_oof_candidates) | 70 // oof_candidates.prepend(child_oof_candidates); |
73 // else | 71 // } else { |
74 // builder->AddOutOfFlowDescendant(); | 72 // builder->AddOutOfFlowDescendant(); |
| 73 // } |
75 // } | 74 // } |
76 NGFragmentBuilder& AddOutOfFlowChildCandidate(NGBlockNode*, NGLogicalOffset); | 75 NGFragmentBuilder& AddOutOfFlowChildCandidate(NGBlockNode*, NGLogicalOffset); |
77 | 76 |
78 void GetAndClearOutOfFlowDescendantCandidates(WeakBoxList*, | 77 void GetAndClearOutOfFlowDescendantCandidates(WeakBoxList*, |
79 Vector<NGStaticPosition>*); | 78 Vector<NGStaticPosition>*); |
80 | 79 |
81 NGFragmentBuilder& AddOutOfFlowDescendant(NGBlockNode*, | 80 NGFragmentBuilder& AddOutOfFlowDescendant(NGBlockNode*, |
82 const NGStaticPosition&); | 81 const NGStaticPosition&); |
83 | 82 |
84 void SetBreakToken(NGBreakToken* token) { | 83 void SetBreakToken(NGBreakToken* token) { |
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138 | 137 |
139 WeakBoxList out_of_flow_descendants_; | 138 WeakBoxList out_of_flow_descendants_; |
140 Vector<NGStaticPosition> out_of_flow_positions_; | 139 Vector<NGStaticPosition> out_of_flow_positions_; |
141 | 140 |
142 Member<NGBreakToken> break_token_; | 141 Member<NGBreakToken> break_token_; |
143 }; | 142 }; |
144 | 143 |
145 } // namespace blink | 144 } // namespace blink |
146 | 145 |
147 #endif // NGFragmentBuilder | 146 #endif // NGFragmentBuilder |
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