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/*
* Copyright (C) 2008 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.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE 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 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 "AccessibilityRenderObject.h"
namespace WebCore {
class AccessibilityTable;
class AccessibilityTableRow;
class AccessibilityTableCell : public AccessibilityRenderObject {
public:
static Ref<AccessibilityTableCell> create(AXID, RenderObject&);
static Ref<AccessibilityTableCell> create(AXID, Node&);
virtual ~AccessibilityTableCell();
bool isTableCell() const final { return true; }
bool isExposedTableCell() const final;
bool isTableHeaderCell() const;
bool isColumnHeader() const final;
bool isRowHeader() const final;
std::optional<AXID> rowGroupAncestorID() const final;
virtual AccessibilityTable* parentTable() const;
// Returns the start location and row span of the cell.
std::pair<unsigned, unsigned> rowIndexRange() const final;
// Returns the start location and column span of the cell.
std::pair<unsigned, unsigned> columnIndexRange() const final;
AccessibilityChildrenVector rowHeaders() final;
int axColumnIndex() const final;
int axRowIndex() const final;
unsigned colSpan() const;
unsigned rowSpan() const;
void incrementEffectiveRowSpan() { ++m_effectiveRowSpan; }
void resetEffectiveRowSpan() { m_effectiveRowSpan = 1; }
void setAXColIndexFromRow(int index) { m_axColIndexFromRow = index; }
void setRowIndex(unsigned);
void setColumnIndex(unsigned);
#if USE(ATSPI)
int axColumnSpan() const;
int axRowSpan() const;
#endif
protected:
explicit AccessibilityTableCell(AXID, RenderObject&);
explicit AccessibilityTableCell(AXID, Node&);
AccessibilityTableRow* parentRow() const;
AccessibilityRole determineAccessibilityRole() final;
private:
// If a table cell is not exposed as a table cell, a TH element can serve as its title UI element.
AccessibilityObject* titleUIElement() const final;
bool computeIsIgnored() const final;
String expandedTextValue() const final;
bool supportsExpandedTextValue() const final;
void ensureIndexesUpToDate() const;
unsigned m_rowIndex { 0 };
unsigned m_columnIndex { 0 };
int m_axColIndexFromRow { -1 };
// How many rows does this cell actually span?
// This differs from rowSpan(), which can be an author-specified number all the way up 65535 that doesn't actually
// reflect how many rows the cell spans in the rendered table.
// Default to 1, as the cell should span at least the row it starts in.
unsigned m_effectiveRowSpan { 1 };
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_ACCESSIBILITY(AccessibilityTableCell, isTableCell())
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