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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_block_node.h" | 5 #include "core/layout/ng/ng_block_node.h" |
6 | 6 |
7 #include "core/layout/LayoutBlockFlow.h" | 7 #include "core/layout/LayoutBlockFlow.h" |
8 #include "core/layout/api/LineLayoutAPIShim.h" | 8 #include "core/layout/api/LineLayoutAPIShim.h" |
9 #include "core/layout/line/InlineIterator.h" | 9 #include "core/layout/line/InlineIterator.h" |
10 #include "core/layout/ng/layout_ng_block_flow.h" | 10 #include "core/layout/ng/layout_ng_block_flow.h" |
11 #include "core/layout/ng/ng_block_layout_algorithm.h" | 11 #include "core/layout/ng/ng_block_layout_algorithm.h" |
12 #include "core/layout/ng/ng_constraint_space_builder.h" | 12 #include "core/layout/ng/ng_constraint_space_builder.h" |
13 #include "core/layout/ng/ng_constraint_space.h" | 13 #include "core/layout/ng/ng_constraint_space.h" |
14 #include "core/layout/ng/ng_inline_layout_algorithm.h" | 14 #include "core/layout/ng/ng_inline_layout_algorithm.h" |
15 #include "core/layout/ng/ng_fragment.h" | 15 #include "core/layout/ng/ng_fragment.h" |
16 #include "core/layout/ng/ng_fragment_builder.h" | 16 #include "core/layout/ng/ng_fragment_builder.h" |
17 #include "core/layout/ng/ng_layout_coordinator.h" | 17 #include "core/layout/ng/ng_layout_coordinator.h" |
18 #include "core/layout/ng/ng_length_utils.h" | 18 #include "core/layout/ng/ng_length_utils.h" |
19 #include "core/layout/ng/ng_writing_mode.h" | 19 #include "core/layout/ng/ng_writing_mode.h" |
20 #include "platform/RuntimeEnabledFeatures.h" | 20 #include "platform/RuntimeEnabledFeatures.h" |
21 #include "platform/text/TextDirection.h" | 21 #include "platform/text/TextDirection.h" |
22 | 22 |
23 namespace blink { | 23 namespace blink { |
24 | 24 |
25 NGBlockNode::NGBlockNode(LayoutObject* layout_object) | 25 NGBlockNode::NGBlockNode(LayoutObject* layout_object) |
26 : NGLayoutInputNode(NGLayoutInputNodeType::LegacyBlock), | 26 : NGLayoutInputNode(NGLayoutInputNodeType::kLegacyBlock), |
27 layout_box_(toLayoutBox(layout_object)) { | 27 layout_box_(toLayoutBox(layout_object)) { |
28 DCHECK(layout_box_); | 28 DCHECK(layout_box_); |
29 } | 29 } |
30 | 30 |
31 NGBlockNode::NGBlockNode(ComputedStyle* style) | 31 NGBlockNode::NGBlockNode(ComputedStyle* style) |
32 : NGLayoutInputNode(NGLayoutInputNodeType::LegacyBlock), | 32 : NGLayoutInputNode(NGLayoutInputNodeType::kLegacyBlock), |
33 layout_box_(nullptr), | 33 layout_box_(nullptr), |
34 style_(style) { | 34 style_(style) { |
35 DCHECK(style_); | 35 DCHECK(style_); |
36 } | 36 } |
37 | 37 |
38 bool NGBlockNode::Layout(const NGConstraintSpace* constraint_space, | 38 bool NGBlockNode::Layout(const NGConstraintSpace* constraint_space, |
39 NGFragmentBase** out) { | 39 NGFragmentBase** out) { |
40 DCHECK(!minmax_algorithm_) | 40 DCHECK(!minmax_algorithm_) |
41 << "Can't interleave Layout and ComputeMinAndMaxContentSizes"; | 41 << "Can't interleave Layout and ComputeMinAndMaxContentSizes"; |
42 if (layout_box_ && layout_box_->isOutOfFlowPositioned()) | 42 if (layout_box_ && layout_box_->isOutOfFlowPositioned()) |
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103 NGConstraintSpace* constraint_space = new NGConstraintSpace( | 103 NGConstraintSpace* constraint_space = new NGConstraintSpace( |
104 FromPlatformWritingMode(Style()->getWritingMode()), | 104 FromPlatformWritingMode(Style()->getWritingMode()), |
105 Style()->direction(), builder.ToConstraintSpace()); | 105 Style()->direction(), builder.ToConstraintSpace()); |
106 | 106 |
107 minmax_algorithm_ = new NGBlockLayoutAlgorithm( | 107 minmax_algorithm_ = new NGBlockLayoutAlgorithm( |
108 Style(), toNGBlockNode(FirstChild()), constraint_space); | 108 Style(), toNGBlockNode(FirstChild()), constraint_space); |
109 } | 109 } |
110 // TODO(cbiesinger): For orthogonal children, we need to always synthesize. | 110 // TODO(cbiesinger): For orthogonal children, we need to always synthesize. |
111 NGLayoutAlgorithm::MinAndMaxState state = | 111 NGLayoutAlgorithm::MinAndMaxState state = |
112 minmax_algorithm_->ComputeMinAndMaxContentSizes(sizes); | 112 minmax_algorithm_->ComputeMinAndMaxContentSizes(sizes); |
113 if (state == NGLayoutAlgorithm::Success) | 113 if (state == NGLayoutAlgorithm::kSuccess) |
114 return true; | 114 return true; |
115 if (state == NGLayoutAlgorithm::Pending) | 115 if (state == NGLayoutAlgorithm::kPending) |
116 return false; | 116 return false; |
117 DCHECK_EQ(state, NGLayoutAlgorithm::NotImplemented); | 117 DCHECK_EQ(state, NGLayoutAlgorithm::kNotImplemented); |
118 | 118 |
119 // TODO(cbiesinger): Replace the loops below with a state machine like in | 119 // TODO(cbiesinger): Replace the loops below with a state machine like in |
120 // Layout. | 120 // Layout. |
121 | 121 |
122 // Have to synthesize this value. | 122 // Have to synthesize this value. |
123 NGPhysicalFragmentBase* physical_fragment; | 123 NGPhysicalFragmentBase* physical_fragment; |
124 while (!minmax_algorithm_->Layout(nullptr, &physical_fragment, nullptr)) | 124 while (!minmax_algorithm_->Layout(nullptr, &physical_fragment, nullptr)) |
125 continue; | 125 continue; |
126 NGFragment* fragment = new NGFragment( | 126 NGFragment* fragment = new NGFragment( |
127 FromPlatformWritingMode(Style()->getWritingMode()), Style()->direction(), | 127 FromPlatformWritingMode(Style()->getWritingMode()), Style()->direction(), |
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302 layout_box_->setOverrideContainingBlockContentLogicalHeight( | 302 layout_box_->setOverrideContainingBlockContentLogicalHeight( |
303 available_size.block_size); | 303 available_size.block_size); |
304 if (layout_box_->isLayoutNGBlockFlow() && layout_box_->needsLayout()) { | 304 if (layout_box_->isLayoutNGBlockFlow() && layout_box_->needsLayout()) { |
305 toLayoutNGBlockFlow(layout_box_)->LayoutBlockFlow::layoutBlock(true); | 305 toLayoutNGBlockFlow(layout_box_)->LayoutBlockFlow::layoutBlock(true); |
306 } else { | 306 } else { |
307 layout_box_->forceLayout(); | 307 layout_box_->forceLayout(); |
308 } | 308 } |
309 LayoutRect overflow = layout_box_->layoutOverflowRect(); | 309 LayoutRect overflow = layout_box_->layoutOverflowRect(); |
310 // TODO(layout-ng): This does not handle writing modes correctly (for | 310 // TODO(layout-ng): This does not handle writing modes correctly (for |
311 // overflow) | 311 // overflow) |
312 NGFragmentBuilder builder(NGPhysicalFragmentBase::FragmentBox); | 312 NGFragmentBuilder builder(NGPhysicalFragmentBase::kFragmentBox); |
313 builder.SetInlineSize(layout_box_->logicalWidth()) | 313 builder.SetInlineSize(layout_box_->logicalWidth()) |
314 .SetBlockSize(layout_box_->logicalHeight()) | 314 .SetBlockSize(layout_box_->logicalHeight()) |
315 .SetDirection(layout_box_->styleRef().direction()) | 315 .SetDirection(layout_box_->styleRef().direction()) |
316 .SetWritingMode( | 316 .SetWritingMode( |
317 FromPlatformWritingMode(layout_box_->styleRef().getWritingMode())) | 317 FromPlatformWritingMode(layout_box_->styleRef().getWritingMode())) |
318 .SetInlineOverflow(overflow.width()) | 318 .SetInlineOverflow(overflow.width()) |
319 .SetBlockOverflow(overflow.height()); | 319 .SetBlockOverflow(overflow.height()); |
320 return builder.ToFragment(); | 320 return builder.ToFragment(); |
321 } | 321 } |
322 | 322 |
323 } // namespace blink | 323 } // namespace blink |
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