accessibilitytable.h

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

/*
 * 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
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef AccessibilityTable_h
#define AccessibilityTable_h

#include "AccessibilityRenderObject.h"

namespace WebCore {

class String;
class AccessibilityTableCell;
class AccessibilityTableHeaderContainer;
    
class AccessibilityTable : public AccessibilityRenderObject {

private:
    AccessibilityTable(RenderObject*);
public:
    static PassRefPtr<AccessibilityTable> create(RenderObject*);
    virtual ~AccessibilityTable();
    
    virtual bool isDataTable() const;
    virtual AccessibilityRole roleValue() const;
    
    virtual bool accessibilityIsIgnored() const;
    
    virtual void addChildren();
    virtual void clearChildren();
    
    AccessibilityChildrenVector& columns();
    AccessibilityChildrenVector& rows();
    
    const unsigned columnCount();
    const unsigned rowCount();
    
    virtual String title() const;
    
    // all the cells in the table
    void cells(AccessibilityChildrenVector&);
    AccessibilityTableCell* cellForColumnAndRow(unsigned column, unsigned row);
    
    void columnHeaders(AccessibilityChildrenVector&);
    void rowHeaders(AccessibilityChildrenVector&);

    // an object that contains, as children, all the objects that act as headers
    AccessibilityObject* headerContainer();
    
private:    
    AccessibilityChildrenVector m_rows;
    AccessibilityChildrenVector m_columns;
    
    AccessibilityTableHeaderContainer* m_headerContainer;
    mutable bool m_isAccessibilityTable;
    
    bool isTableExposableThroughAccessibility();
};
    
} // namespace WebCore 

#endif // AccessibilityTable_h