WebCore/accessibility/AccessibilityARIAGridCell.cpp

   1 /*
   2  * Copyright (C) 2009 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
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   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
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  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
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  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include "config.h"
  30 #include "AccessibilityARIAGridCell.h"
  31
  32 #include "AccessibilityObject.h"
  33 #include "AccessibilityTableRow.h"
  34
  35 using namespace std;
  36
  37 namespace WebCore {
  38
  39 AccessibilityARIAGridCell::AccessibilityARIAGridCell(RenderObject* renderer)
  40     : AccessibilityTableCell(renderer)
  41 {
  42 }
  43
  44 AccessibilityARIAGridCell::~AccessibilityARIAGridCell()
  45 {
  46 }
  47
  48 PassRefPtr<AccessibilityARIAGridCell> AccessibilityARIAGridCell::create(RenderObject* renderer)
  49 {
  50     return adoptRef(new AccessibilityARIAGridCell(renderer));
  51 }
  52
  53 AccessibilityObject* AccessibilityARIAGridCell::parentTable() const
  54 {
  55     AccessibilityObject* parent = parentObjectUnignored();
  56     if (!parent || !parent->isTableRow())
  57         return 0;
  58
  59     parent = parent->parentObjectUnignored();
  60     if (!parent || !parent->isDataTable())
  61         return 0;
  62
  63     return parent;
  64 }
  65
  66 void AccessibilityARIAGridCell::rowIndexRange(pair<int, int>& rowRange)
  67 {
  68     AccessibilityObject* parent = parentObjectUnignored();
  69     if (!parent || !parent->isTableRow())
  70         return;
  71
  72     // as far as I can tell, grid cells cannot span rows
  73     rowRange.first = static_cast<AccessibilityTableRow*>(parent)->rowIndex();
  74     rowRange.second = 1;
  75 }
  76
  77 void AccessibilityARIAGridCell::columnIndexRange(pair<int, int>& columnRange)
  78 {
  79     AccessibilityObject* parent = parentObjectUnignored();
  80     if (!parent || !parent->isTableRow())
  81         return;
  82
  83     AccessibilityChildrenVector siblings = parent->children();
  84     unsigned childrenSize = siblings.size();
  85     for (unsigned k = 0; k < childrenSize; ++k) {
  86         if (siblings[k].get() == this) {
  87             columnRange.first = k;
  88             break;
  89         }
  90     }
  91
  92     // as far as I can tell, grid cells cannot span columns
  93     columnRange.second = 1;
  94 }
  95
  96 } // namespace WebCore