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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.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_NG_NG_FRAGMENT_BUILDER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_NG_NG_FRAGMENT_BUILDER_H_
#include "base/memory/scoped_refptr.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/layout/geometry/logical_size.h"
#include "third_party/blink/renderer/core/layout/ng/ng_break_token.h"
#include "third_party/blink/renderer/core/layout/ng/ng_style_variant.h"
#include "third_party/blink/renderer/core/style/computed_style.h"
#include "third_party/blink/renderer/platform/text/text_direction.h"
#include "third_party/blink/renderer/platform/text/writing_mode.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
namespace blink {
class LayoutObject;
class CORE_EXPORT NGFragmentBuilder {
STACK_ALLOCATED();
public:
const ComputedStyle& Style() const {
DCHECK(style_);
return *style_;
}
void SetStyleVariant(NGStyleVariant style_variant) {
style_variant_ = style_variant;
}
void SetStyle(scoped_refptr<const ComputedStyle> style,
NGStyleVariant style_variant) {
DCHECK(style);
style_ = std::move(style);
style_variant_ = style_variant;
}
WritingMode GetWritingMode() const { return writing_mode_; }
TextDirection Direction() const { return direction_; }
LayoutUnit InlineSize() const { return size_.inline_size; }
LayoutUnit BlockSize() const { return size_.block_size; }
const LogicalSize& Size() const { return size_; }
void SetBlockSize(LayoutUnit block_size) { size_.block_size = block_size; }
void SetIsHiddenForPaint(bool value) { is_hidden_for_paint_ = value; }
// Specify whether this will be the first fragment generated for the node.
void SetIsFirstForNode(bool is_first) { is_first_for_node_ = is_first; }
const LayoutObject* GetLayoutObject() const { return layout_object_; }
protected:
NGFragmentBuilder(scoped_refptr<const ComputedStyle> style,
WritingMode writing_mode,
TextDirection direction)
: style_(std::move(style)),
writing_mode_(writing_mode),
direction_(direction),
style_variant_(NGStyleVariant::kStandard) {
DCHECK(style_);
}
NGFragmentBuilder(WritingMode writing_mode, TextDirection direction)
: writing_mode_(writing_mode), direction_(direction) {}
NGFragmentBuilder(const NGPhysicalFragment& fragment)
: style_(&fragment.Style()),
writing_mode_(style_->GetWritingMode()),
direction_(style_->Direction()),
style_variant_(fragment.StyleVariant()),
size_(fragment.Size().ConvertToLogical(writing_mode_)),
layout_object_(fragment.GetMutableLayoutObject()),
is_hidden_for_paint_(fragment.IsHiddenForPaint()) {}
protected:
scoped_refptr<const ComputedStyle> style_;
WritingMode writing_mode_;
TextDirection direction_;
NGStyleVariant style_variant_;
LogicalSize size_;
LayoutObject* layout_object_ = nullptr;
scoped_refptr<NGBreakToken> break_token_;
bool is_hidden_for_paint_ = false;
bool is_first_for_node_ = true;
friend class NGPhysicalFragment;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_NG_NG_FRAGMENT_BUILDER_H_
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