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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/layout_ng_block_flow.h" | 5 #include "core/layout/ng/layout_ng_block_flow.h" |
6 | 6 |
7 #include "core/layout/LayoutAnalyzer.h" | 7 #include "core/layout/LayoutAnalyzer.h" |
8 #include "core/layout/ng/ng_constraint_space.h" | 8 #include "core/layout/ng/ng_constraint_space.h" |
9 #include "core/layout/ng/ng_fragment.h" | 9 #include "core/layout/ng/ng_fragment.h" |
10 | 10 |
11 namespace blink { | 11 namespace blink { |
12 | 12 |
13 LayoutNGBlockFlow::LayoutNGBlockFlow(Element* element) | 13 LayoutNGBlockFlow::LayoutNGBlockFlow(Element* element) |
14 : LayoutBlockFlow(element) {} | 14 : LayoutBlockFlow(element) {} |
15 | 15 |
16 bool LayoutNGBlockFlow::isOfType(LayoutObjectType type) const { | 16 bool LayoutNGBlockFlow::isOfType(LayoutObjectType type) const { |
17 return type == LayoutObjectNGBlockFlow || LayoutBlockFlow::isOfType(type); | 17 return type == LayoutObjectNGBlockFlow || LayoutBlockFlow::isOfType(type); |
18 } | 18 } |
19 | 19 |
20 void LayoutNGBlockFlow::layoutBlock(bool relayoutChildren) { | 20 void LayoutNGBlockFlow::layoutBlock(bool relayoutChildren) { |
21 LayoutAnalyzer::BlockScope analyzer(*this); | 21 LayoutAnalyzer::BlockScope analyzer(*this); |
22 | 22 |
23 auto* constraint_space = NGConstraintSpace::CreateFromLayoutObject(*this); | 23 auto* constraint_space = NGConstraintSpace::CreateFromLayoutObject(*this); |
24 | 24 |
25 // TODO(layout-dev): This should be created in the constructor once instead. | 25 // TODO(layout-dev): This should be created in the constructor once instead. |
26 // There is some internal state which needs to be cleared between layout | 26 // There is some internal state which needs to be cleared between layout |
27 // passes (probably FirstChild(), etc). | 27 // passes (probably FirstChild(), etc). |
28 m_box = new NGBlockNode(this); | 28 m_box = new NGBlockNode(this); |
29 | 29 |
30 NGFragment* fragment; | 30 NGPhysicalFragment* fragment = m_box->Layout(constraint_space); |
31 while (!m_box->Layout(constraint_space, &fragment)) | |
32 ; | |
33 | 31 |
34 if (isOutOfFlowPositioned()) { | 32 if (isOutOfFlowPositioned()) { |
35 // In legacy layout, abspos differs from regular blocks in that abspos | 33 // In legacy layout, abspos differs from regular blocks in that abspos |
36 // blocks position themselves in their own layout, instead of getting | 34 // blocks position themselves in their own layout, instead of getting |
37 // positioned by their parent. So it we are a positioned block in a legacy- | 35 // positioned by their parent. So it we are a positioned block in a legacy- |
38 // layout containing block, we have to emulate this positioning. | 36 // layout containing block, we have to emulate this positioning. |
39 // Additionally, until we natively support abspos in LayoutNG, this code | 37 // Additionally, until we natively support abspos in LayoutNG, this code |
40 // will also be reached though the layoutPositionedObjects call in | 38 // will also be reached though the layoutPositionedObjects call in |
41 // NGBlockNode::CopyFragmentDataToLayoutBox. | 39 // NGBlockNode::CopyFragmentDataToLayoutBox. |
42 LogicalExtentComputedValues computedValues; | 40 LogicalExtentComputedValues computedValues; |
43 computeLogicalWidth(computedValues); | 41 computeLogicalWidth(computedValues); |
44 setLogicalLeft(computedValues.m_position); | 42 setLogicalLeft(computedValues.m_position); |
45 computeLogicalHeight(logicalHeight(), logicalTop(), computedValues); | 43 computeLogicalHeight(logicalHeight(), logicalTop(), computedValues); |
46 setLogicalTop(computedValues.m_position); | 44 setLogicalTop(computedValues.m_position); |
47 } | 45 } |
48 | 46 |
49 for (auto& descendant : fragment->PhysicalFragment()->OutOfFlowDescendants()) | 47 for (auto& descendant : fragment->OutOfFlowDescendants()) |
50 descendant->UseOldOutOfFlowPositioning(); | 48 descendant->UseOldOutOfFlowPositioning(); |
51 clearNeedsLayout(); | 49 clearNeedsLayout(); |
52 } | 50 } |
53 | 51 |
54 } // namespace blink | 52 } // namespace blink |
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