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/*
* Copyright (C) 2019 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "FormattingContext.h"
#include "TableFormattingGeometry.h"
#include "TableFormattingQuirks.h"
#include "TableFormattingState.h"
#include "TableGrid.h"
#include <wtf/IsoMalloc.h>
#include <wtf/UniqueRef.h>
namespace WebCore {
namespace Layout {
// This class implements the layout logic for table formatting contexts.
// https://www.w3.org/TR/CSS22/tables.html
class TableFormattingContext final : public FormattingContext {
WTF_MAKE_ISO_ALLOCATED(TableFormattingContext);
public:
TableFormattingContext(const ElementBox& formattingContextRoot, TableFormattingState&);
void layoutInFlowContent(const ConstraintsForInFlowContent&) override;
LayoutUnit usedContentHeight() const override;
const TableFormattingGeometry& formattingGeometry() const final { return m_tableFormattingGeometry; }
const TableFormattingQuirks& formattingQuirks() const final { return m_tableFormattingQuirks; }
const TableFormattingState& formattingState() const { return downcast<TableFormattingState>(FormattingContext::formattingState()); }
private:
class TableLayout {
public:
TableLayout(const TableFormattingContext&, const TableGrid&);
using DistributedSpaces = Vector<LayoutUnit>;
DistributedSpaces distributedHorizontalSpace(LayoutUnit availableHorizontalSpace);
DistributedSpaces distributedVerticalSpace(std::optional<LayoutUnit> availableVerticalSpace);
private:
const TableFormattingContext& formattingContext() const { return m_formattingContext; }
const TableFormattingContext& m_formattingContext;
const TableGrid& m_grid;
};
TableFormattingContext::TableLayout tableLayout() const { return TableLayout(*this, formattingState().tableGrid()); }
IntrinsicWidthConstraints computedIntrinsicWidthConstraints() override;
void setUsedGeometryForCells(LayoutUnit availableHorizontalSpace, std::optional<LayoutUnit> availableVerticalSpace);
void setUsedGeometryForRows(LayoutUnit availableHorizontalSpace);
void setUsedGeometryForSections(const ConstraintsForInFlowContent&);
IntrinsicWidthConstraints computedPreferredWidthForColumns();
void computeAndDistributeExtraSpace(LayoutUnit availableHorizontalSpace, std::optional<LayoutUnit> availableVerticalSpace);
TableFormattingState& formattingState() { return downcast<TableFormattingState>(FormattingContext::formattingState()); }
const TableFormattingGeometry m_tableFormattingGeometry;
const TableFormattingQuirks m_tableFormattingQuirks;
};
}
}
SPECIALIZE_TYPE_TRAITS_LAYOUT_FORMATTING_CONTEXT(TableFormattingContext, isTableFormattingContext())
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