File: AXTable.h

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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 Computer, 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.
 */

#ifndef AXTable_h
#define AXTable_h

#include "modules/ModulesExport.h"
#include "modules/accessibility/AXLayoutObject.h"
#include "wtf/Forward.h"

namespace blink {

class AXObjectCacheImpl;
class AXTableCell;

class MODULES_EXPORT AXTable : public AXLayoutObject {
  WTF_MAKE_NONCOPYABLE(AXTable);

 protected:
  AXTable(LayoutObject*, AXObjectCacheImpl&);

 public:
  static AXTable* create(LayoutObject*, AXObjectCacheImpl&);
  ~AXTable() override;
  DECLARE_VIRTUAL_TRACE();

  void init() final;

  bool isAXTable() const final;
  bool isDataTable() const final;

  AccessibilityRole roleValue() const final;

  void addChildren() override;
  void clearChildren() final;

  // To be overridden by AXARIAGrid.
  virtual bool isAriaTable() const { return false; }
  virtual bool supportsSelectedRows() { return false; }

  const AXObjectVector& columns();
  const AXObjectVector& rows();

  unsigned columnCount();
  unsigned rowCount();
  AXTableCell* cellForColumnAndRow(unsigned column, unsigned row);

  int ariaColumnCount();
  int ariaRowCount();

  void columnHeaders(AXObjectVector&);
  void rowHeaders(AXObjectVector&);

  // an object that contains, as children, all the objects that act as headers
  AXObject* headerContainer();

 protected:
  AXObjectVector m_rows;
  AXObjectVector m_columns;

  Member<AXObject> m_headerContainer;
  bool m_isAXTable;

  bool hasARIARole() const;
  virtual bool isTableExposableThroughAccessibility() const;
  bool computeAccessibilityIsIgnored(IgnoredReasons* = nullptr) const final;
};

DEFINE_AX_OBJECT_TYPE_CASTS(AXTable, isAXTable());

}  // namespace blink

#endif  // AXTable_h