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// Copyright 2019 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_TABLE_LAYOUT_NG_TABLE_INTERFACE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_NG_TABLE_LAYOUT_NG_TABLE_INTERFACE_H_
#include "third_party/blink/renderer/core/layout/ng/table/interface_casting.h"
namespace blink {
class LayoutNGTableCellInterface;
class LayoutNGTableSectionInterface;
class LayoutUnit;
// Abstract class defining table methods.
// Used for Legacy/NG interoperability.
enum SkipEmptySectionsValue { kDoNotSkipEmptySections, kSkipEmptySections };
class LayoutNGTableInterface {
public:
virtual const LayoutObject* ToLayoutObject() const = 0;
// Non-const version required by TextAutosizer, AXLayoutObject.
virtual LayoutObject* ToMutableLayoutObject() = 0;
virtual bool ShouldCollapseBorders() const = 0;
// TODO(crbug.com/1081425) Method not used by NG, should be removed.
virtual bool HasCollapsedBorders() const = 0;
virtual bool IsFixedTableLayout() const = 0;
virtual int16_t HBorderSpacing() const = 0;
virtual int16_t VBorderSpacing() const = 0;
// TODO(crbug.com/1081425) Method not used by NG, should be removed.
virtual bool HasColElements() const = 0;
virtual unsigned AbsoluteColumnToEffectiveColumn(
unsigned absolute_column_index) const = 0;
virtual void RecalcSectionsIfNeeded() const = 0;
virtual void ForceSectionsRecalc() = 0;
// TODO(crbug.com/1081425) Method not used by NG, should be removed.
virtual LayoutUnit RowOffsetFromRepeatingFooter() const = 0;
// TODO(crbug.com/1081425) Method not used by NG, should be removed.
virtual LayoutUnit RowOffsetFromRepeatingHeader() const = 0;
virtual LayoutNGTableSectionInterface* FirstBodyInterface() const = 0;
virtual LayoutNGTableSectionInterface* TopSectionInterface() const = 0;
// TODO(crbug.com/1081425) Method not used by NG, should be removed.
virtual LayoutNGTableSectionInterface* TopNonEmptySectionInterface()
const = 0;
// TODO(crbug.com/1081425) Method not used by NG, should be removed.
virtual LayoutNGTableSectionInterface* BottomSectionInterface() const = 0;
virtual LayoutNGTableSectionInterface* BottomNonEmptySectionInterface()
const = 0;
virtual LayoutNGTableSectionInterface* SectionBelowInterface(
const LayoutNGTableSectionInterface*,
SkipEmptySectionsValue) const = 0;
virtual bool IsFirstCell(const LayoutNGTableCellInterface&) const = 0;
};
template <>
struct InterfaceDowncastTraits<LayoutNGTableInterface> {
static bool AllowFrom(const LayoutObject& object) { return object.IsTable(); }
static const LayoutNGTableInterface& ConvertFrom(const LayoutObject& object) {
return *object.ToLayoutNGTableInterface();
}
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_NG_TABLE_LAYOUT_NG_TABLE_INTERFACE_H_
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