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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_LIST_LAYOUT_NG_LIST_ITEM_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_NG_LIST_LAYOUT_NG_LIST_ITEM_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/html/list_item_ordinal.h"
#include "third_party/blink/renderer/core/layout/ng/layout_ng_block_flow.h"
namespace blink {
// A LayoutObject subclass for 'display: list-item' in LayoutNG.
class CORE_EXPORT LayoutNGListItem final : public LayoutNGBlockFlow {
public:
explicit LayoutNGListItem(Element*);
ListItemOrdinal& Ordinal() { return ordinal_; }
int Value() const;
String MarkerTextWithSuffix() const;
String MarkerTextWithoutSuffix() const;
LayoutObject* Marker() const { return marker_; }
bool IsMarkerImage() const {
return StyleRef().ListStyleImage() &&
!StyleRef().ListStyleImage()->ErrorOccurred();
}
void UpdateMarkerTextIfNeeded() {
if (marker_ && !is_marker_text_updated_ && !IsMarkerImage())
UpdateMarkerText();
}
void UpdateMarkerContentIfNeeded();
void OrdinalValueChanged();
void WillCollectInlines() override;
LayoutObject* SymbolMarkerLayoutText() const;
static const LayoutObject* FindSymbolMarkerLayoutText(const LayoutObject*);
const char* GetName() const override { return "LayoutNGListItem"; }
private:
bool IsOfType(LayoutObjectType) const override;
void WillBeDestroyed() override;
void InsertedIntoTree() override;
void WillBeRemovedFromTree() override;
void StyleDidChange(StyleDifference, const ComputedStyle* old_style) override;
void SubtreeDidChange() final;
bool IsInside() const;
enum MarkerTextFormat { kWithSuffix, kWithoutSuffix };
enum MarkerType { kStatic, kOrdinalValue, kSymbolValue };
MarkerType MarkerText(StringBuilder*, MarkerTextFormat) const;
void UpdateMarkerText();
void UpdateMarkerText(LayoutText*);
void UpdateMarker();
void DestroyMarker();
ListItemOrdinal ordinal_;
LayoutObject* marker_ = nullptr;
unsigned marker_type_ : 2; // MarkerType
unsigned is_marker_text_updated_ : 1;
};
DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutNGListItem, IsLayoutNGListItem());
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_NG_LIST_LAYOUT_NG_LIST_ITEM_H_
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