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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_text_fragment_builder.h"
#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/inline/ng_line_height_metrics.h"
#include "third_party/blink/renderer/core/layout/ng/inline/ng_physical_text_fragment.h"
namespace blink {
namespace {
NGLineOrientation ToLineOrientation(WritingMode writing_mode) {
switch (writing_mode) {
case WritingMode::kHorizontalTb:
return NGLineOrientation::kHorizontal;
case WritingMode::kVerticalRl:
case WritingMode::kVerticalLr:
case WritingMode::kSidewaysRl:
return NGLineOrientation::kClockWiseVertical;
case WritingMode::kSidewaysLr:
return NGLineOrientation::kCounterClockWiseVertical;
}
NOTREACHED();
return NGLineOrientation::kHorizontal;
}
} // namespace
NGTextFragmentBuilder::NGTextFragmentBuilder(NGInlineNode node,
WritingMode writing_mode)
: NGBaseFragmentBuilder(writing_mode, TextDirection::kLtr),
inline_node_(node) {}
void NGTextFragmentBuilder::SetItem(
NGPhysicalTextFragment::NGTextType text_type,
const NGInlineItemsData& items_data,
NGInlineItemResult* item_result,
LayoutUnit line_height) {
DCHECK(item_result);
DCHECK(item_result->item->Style());
text_type_ = text_type;
text_ = items_data.text_content;
item_index_ = item_result->item_index;
start_offset_ = item_result->start_offset;
end_offset_ = item_result->end_offset;
SetStyle(item_result->item->Style(), item_result->item->StyleVariant());
size_ = {item_result->inline_size, line_height};
end_effect_ = item_result->text_end_effect;
shape_result_ = std::move(item_result->shape_result);
layout_object_ = item_result->item->GetLayoutObject();
}
void NGTextFragmentBuilder::SetText(
LayoutObject* layout_object,
const String& text,
scoped_refptr<const ComputedStyle> style,
bool is_ellipsis_style,
scoped_refptr<const ShapeResult> shape_result) {
DCHECK(layout_object);
DCHECK(style);
DCHECK(shape_result);
text_type_ = NGPhysicalTextFragment::kNormalText;
text_ = text;
item_index_ = std::numeric_limits<unsigned>::max();
start_offset_ = shape_result->StartIndexForResult();
end_offset_ = shape_result->EndIndexForResult();
SetStyle(style, is_ellipsis_style ? NGStyleVariant::kEllipsis
: NGStyleVariant::kStandard);
size_ = {shape_result->SnappedWidth(),
NGLineHeightMetrics(*style).LineHeight()};
shape_result_ = std::move(shape_result);
layout_object_ = layout_object;
end_effect_ = NGTextEndEffect::kNone;
}
scoped_refptr<NGPhysicalTextFragment> NGTextFragmentBuilder::ToTextFragment() {
scoped_refptr<NGPhysicalTextFragment> fragment =
base::AdoptRef(new NGPhysicalTextFragment(
layout_object_, Style(), style_variant_, text_type_, text_,
start_offset_, end_offset_, size_.ConvertToPhysical(GetWritingMode()),
ToLineOrientation(GetWritingMode()), end_effect_,
std::move(shape_result_)));
return fragment;
}
} // namespace blink
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