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// 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/inline/ng_inline_item_result.h"
#include "third_party/blink/renderer/core/layout/ng/inline/ng_inline_node.h"
#include "third_party/blink/renderer/core/layout/ng/ng_constraint_space.h"
namespace blink {
NGInlineItemResult::NGInlineItemResult()
: item(nullptr), item_index(0), start_offset(0), end_offset(0) {}
NGInlineItemResult::NGInlineItemResult(const NGInlineItem* item,
unsigned index,
unsigned start,
unsigned end,
bool should_create_line_box)
: item(item),
item_index(index),
start_offset(start),
end_offset(end),
should_create_line_box(should_create_line_box) {}
void NGLineInfo::SetLineStyle(const NGInlineNode& node,
const NGInlineItemsData& items_data,
const NGConstraintSpace& constraint_space,
bool is_first_line,
bool use_first_line_style,
bool is_after_forced_break) {
use_first_line_style_ = use_first_line_style;
items_data_ = &items_data;
line_style_ = node.GetLayoutBox()->Style(use_first_line_style_);
if (line_style_->ShouldUseTextIndent(is_first_line, is_after_forced_break)) {
// 'text-indent' applies to block container, and percentage is of its
// containing block.
// https://drafts.csswg.org/css-text-3/#valdef-text-indent-percentage
// In our constraint space tree, parent constraint space is of its
// containing block.
// TODO(kojii): ComputeMinMaxSize does not know parent constraint
// space that we cannot compute percent for text-indent.
const Length& length = line_style_->TextIndent();
LayoutUnit maximum_value;
if (length.IsPercentOrCalc())
maximum_value = constraint_space.ParentPercentageResolutionInlineSize();
text_indent_ = MinimumValueForLength(length, maximum_value);
} else {
text_indent_ = LayoutUnit();
}
}
#if DCHECK_IS_ON()
void NGInlineItemResult::CheckConsistency(bool during_line_break) const {
DCHECK(item);
if (item->Type() == NGInlineItem::kText) {
DCHECK_LT(start_offset, end_offset);
if (during_line_break && !shape_result)
return;
DCHECK(shape_result);
DCHECK_EQ(end_offset - start_offset, shape_result->NumCharacters());
DCHECK_EQ(start_offset, shape_result->StartIndexForResult());
DCHECK_EQ(end_offset, shape_result->EndIndexForResult());
}
}
#endif
LayoutUnit NGLineInfo::ComputeWidth() const {
LayoutUnit inline_size = TextIndent();
for (const NGInlineItemResult& item_result : Results())
inline_size += item_result.inline_size;
if (UNLIKELY(line_end_fragment_)) {
inline_size += line_end_fragment_->Size()
.ConvertToLogical(LineStyle().GetWritingMode())
.inline_size;
}
return inline_size;
}
void NGLineInfo::SetLineBfcOffset(NGBfcOffset line_bfc_offset,
LayoutUnit available_width,
LayoutUnit width) {
line_bfc_offset_ = line_bfc_offset;
available_width_ = available_width;
width_ = width;
}
void NGLineInfo::SetLineEndFragment(
scoped_refptr<NGPhysicalTextFragment> fragment) {
line_end_fragment_ = std::move(fragment);
}
} // namespace blink
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