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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/layout_text_fragment.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"
#include "third_party/blink/renderer/platform/fonts/shaping/shape_result_view.h"
namespace blink {
NGTextFragmentBuilder::NGTextFragmentBuilder(
const NGPhysicalTextFragment& fragment)
: NGFragmentBuilder(fragment),
text_(fragment.text_),
start_offset_(fragment.StartOffset()),
end_offset_(fragment.EndOffset()),
shape_result_(fragment.TextShapeResult()),
text_type_(fragment.TextType()) {}
void NGTextFragmentBuilder::SetItem(
NGPhysicalTextFragment::NGTextType text_type,
const NGInlineItemsData& items_data,
NGInlineItemResult* item_result,
LayoutUnit line_height) {
DCHECK_NE(text_type, NGPhysicalTextFragment::kGeneratedText)
<< "Please use SetText() instead.";
DCHECK(item_result);
DCHECK(item_result->item->Style());
text_type_ = text_type;
text_ = items_data.text_content;
start_offset_ = item_result->start_offset;
end_offset_ = item_result->end_offset;
resolved_direction_ = item_result->item->Direction();
SetStyle(item_result->item->Style(), item_result->item->StyleVariant());
size_ = {item_result->inline_size, line_height};
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 ShapeResultView> shape_result) {
DCHECK(layout_object);
DCHECK(style);
DCHECK(shape_result);
text_type_ = NGPhysicalTextFragment::kGeneratedText;
text_ = text;
start_offset_ = shape_result->StartIndex();
end_offset_ = shape_result->EndIndex();
resolved_direction_ = shape_result->Direction();
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;
}
bool NGTextFragmentBuilder::IsGeneratedText() const {
if (UNLIKELY(style_variant_ == NGStyleVariant::kEllipsis ||
text_type_ == NGPhysicalTextFragment::kGeneratedText))
return true;
DCHECK(layout_object_);
if (const auto* layout_text_fragment =
ToLayoutTextFragmentOrNull(layout_object_)) {
return !layout_text_fragment->AssociatedTextNode();
}
const Node* node = layout_object_->GetNode();
return !node || node->IsPseudoElement();
}
scoped_refptr<const NGPhysicalTextFragment>
NGTextFragmentBuilder::ToTextFragment() {
scoped_refptr<const NGPhysicalTextFragment> fragment =
base::AdoptRef(new NGPhysicalTextFragment(this));
return fragment;
}
} // namespace blink
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