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      1 /*
      2  * Copyright (C) 2008 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef AXTable_h
     30 #define AXTable_h
     31 
     32 #include "core/accessibility/AXRenderObject.h"
     33 #include "wtf/Forward.h"
     34 
     35 namespace blink {
     36 
     37 class AXTableCell;
     38 class RenderTableSection;
     39 
     40 class AXTable : public AXRenderObject {
     41 
     42 protected:
     43     explicit AXTable(RenderObject*);
     44 public:
     45     static PassRefPtr<AXTable> create(RenderObject*);
     46     virtual ~AXTable();
     47 
     48     virtual void init() OVERRIDE FINAL;
     49 
     50     virtual bool isAXTable() const OVERRIDE FINAL;
     51     virtual bool isDataTable() const OVERRIDE FINAL;
     52 
     53     virtual AccessibilityRole roleValue() const OVERRIDE FINAL;
     54 
     55     virtual void addChildren() OVERRIDE;
     56     virtual void clearChildren() OVERRIDE FINAL;
     57 
     58     // To be overridden by AXARIAGrid.
     59     virtual bool isAriaTable() const { return false; }
     60     virtual bool supportsSelectedRows() { return false; }
     61 
     62     AccessibilityChildrenVector& columns();
     63     AccessibilityChildrenVector& rows();
     64 
     65     unsigned columnCount();
     66     unsigned rowCount();
     67 
     68     virtual String title() const OVERRIDE FINAL;
     69 
     70     // all the cells in the table
     71     void cells(AccessibilityChildrenVector&);
     72     AXTableCell* cellForColumnAndRow(unsigned column, unsigned row);
     73 
     74     void columnHeaders(AccessibilityChildrenVector&);
     75 
     76     // an object that contains, as children, all the objects that act as headers
     77     AXObject* headerContainer();
     78 
     79 protected:
     80     AccessibilityChildrenVector m_rows;
     81     AccessibilityChildrenVector m_columns;
     82 
     83     RefPtr<AXObject> m_headerContainer;
     84     bool m_isAXTable;
     85 
     86     bool hasARIARole() const;
     87     virtual bool isTableExposableThroughAccessibility() const;
     88     virtual bool computeAccessibilityIsIgnored() const OVERRIDE FINAL;
     89 };
     90 
     91 DEFINE_AX_OBJECT_TYPE_CASTS(AXTable, isAXTable());
     92 
     93 } // namespace blink
     94 
     95 #endif // AXTable_h
     96