1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/core/layout/ng/ng_layout_input_node.h"
#include "third_party/blink/renderer/core/layout/geometry/logical_size.h"
#include "third_party/blink/renderer/core/layout/intrinsic_sizing_info.h"
#include "third_party/blink/renderer/core/layout/layout_replaced.h"
#include "third_party/blink/renderer/core/layout/layout_view.h"
#include "third_party/blink/renderer/core/layout/min_max_sizes.h"
#include "third_party/blink/renderer/core/layout/ng/inline/ng_inline_node.h"
#include "third_party/blink/renderer/core/layout/ng/ng_block_node.h"
#include "third_party/blink/renderer/core/layout/ng/ng_layout_result.h"
#include "third_party/blink/renderer/platform/wtf/text/string_builder.h"
namespace blink {
namespace {
#if DCHECK_IS_ON()
void AppendNodeToString(NGLayoutInputNode node,
StringBuilder* string_builder,
unsigned indent = 2) {
if (!node)
return;
DCHECK(string_builder);
string_builder->Append(node.ToString());
string_builder->Append("\n");
StringBuilder indent_builder;
for (unsigned i = 0; i < indent; i++)
indent_builder.Append(" ");
if (auto* block_node = DynamicTo<NGBlockNode>(node)) {
NGLayoutInputNode first_child = block_node->FirstChild();
for (NGLayoutInputNode node_runner = first_child; node_runner;
node_runner = node_runner.NextSibling()) {
string_builder->Append(indent_builder.ToString());
AppendNodeToString(node_runner, string_builder, indent + 2);
}
}
if (auto* inline_node = DynamicTo<NGInlineNode>(node)) {
const auto& items = inline_node->ItemsData(false).items;
for (const NGInlineItem& inline_item : items) {
string_builder->Append(indent_builder.ToString());
string_builder->Append(inline_item.ToString());
string_builder->Append("\n");
}
NGLayoutInputNode next_sibling = inline_node->NextSibling();
for (NGLayoutInputNode node_runner = next_sibling; node_runner;
node_runner = node_runner.NextSibling()) {
string_builder->Append(indent_builder.ToString());
AppendNodeToString(node_runner, string_builder, indent + 2);
}
}
}
#endif
} // namespace
MinMaxSizes NGLayoutInputNode::ComputeMinMaxSizes(
WritingMode writing_mode,
const MinMaxSizesInput& input,
const NGConstraintSpace* space) {
if (auto* inline_node = DynamicTo<NGInlineNode>(this))
return inline_node->ComputeMinMaxSizes(writing_mode, input, space);
return To<NGBlockNode>(*this).ComputeMinMaxSizes(writing_mode, input, space);
}
void NGLayoutInputNode::IntrinsicSize(
base::Optional<LayoutUnit>* computed_inline_size,
base::Optional<LayoutUnit>* computed_block_size) const {
DCHECK(IsReplaced());
GetOverrideIntrinsicSize(computed_inline_size, computed_block_size);
if (*computed_inline_size && *computed_block_size)
return;
IntrinsicSizingInfo legacy_sizing_info;
ToLayoutReplaced(box_)->ComputeIntrinsicSizingInfo(legacy_sizing_info);
if (!*computed_inline_size && legacy_sizing_info.has_width)
*computed_inline_size = LayoutUnit(legacy_sizing_info.size.Width());
if (!*computed_block_size && legacy_sizing_info.has_height)
*computed_block_size = LayoutUnit(legacy_sizing_info.size.Height());
}
NGLayoutInputNode NGLayoutInputNode::NextSibling() {
auto* inline_node = DynamicTo<NGInlineNode>(this);
return inline_node ? inline_node->NextSibling()
: To<NGBlockNode>(*this).NextSibling();
}
PhysicalSize NGLayoutInputNode::InitialContainingBlockSize() const {
IntSize icb_size =
GetDocument().GetLayoutView()->GetLayoutSize(kExcludeScrollbars);
return PhysicalSize(icb_size);
}
const NGPaintFragment* NGLayoutInputNode::PaintFragment() const {
return GetLayoutBox()->PaintFragment();
}
String NGLayoutInputNode::ToString() const {
auto* inline_node = DynamicTo<NGInlineNode>(this);
return inline_node ? inline_node->ToString()
: To<NGBlockNode>(*this).ToString();
}
#if DCHECK_IS_ON()
void NGLayoutInputNode::ShowNodeTree() const {
StringBuilder string_builder;
string_builder.Append(".:: LayoutNG Node Tree ::.\n");
AppendNodeToString(*this, &string_builder);
DLOG(INFO) << "\n" << string_builder.ToString().Utf8();
}
#endif
void NGLayoutInputNode::GetOverrideIntrinsicSize(
base::Optional<LayoutUnit>* computed_inline_size,
base::Optional<LayoutUnit>* computed_block_size) const {
DCHECK(IsReplaced());
LayoutUnit override_inline_size = OverrideIntrinsicContentInlineSize();
if (override_inline_size != kIndefiniteSize) {
*computed_inline_size = override_inline_size;
} else {
LayoutUnit default_inline_size = DefaultIntrinsicContentInlineSize();
if (default_inline_size != kIndefiniteSize)
*computed_inline_size = default_inline_size;
}
LayoutUnit override_block_size = OverrideIntrinsicContentBlockSize();
if (override_block_size != kIndefiniteSize) {
*computed_block_size = override_block_size;
} else {
LayoutUnit default_block_size = DefaultIntrinsicContentBlockSize();
if (default_block_size != kIndefiniteSize)
*computed_block_size = default_block_size;
}
if (ShouldApplySizeContainment()) {
if (!*computed_inline_size)
*computed_inline_size = LayoutUnit();
if (!*computed_block_size)
*computed_block_size = LayoutUnit();
}
}
} // namespace blink
|
