/platform/external/webkit/WebCore/accessibility/AccessibilityARIAGridCell.cpp

 1/*
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15 *     from this software without specific prior written permission.
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27 */
28
29#include "config.h"
30#include "AccessibilityARIAGridCell.h"
31
32#include "AccessibilityObject.h"
33#include "AccessibilityTableRow.h"
34
35using namespace std;
36
37namespace WebCore {
38    
39AccessibilityARIAGridCell::AccessibilityARIAGridCell(RenderObject* renderer)
40    : AccessibilityTableCell(renderer)
41{
42}
43
44AccessibilityARIAGridCell::~AccessibilityARIAGridCell()
45{
46}
47
48PassRefPtr<AccessibilityARIAGridCell> AccessibilityARIAGridCell::create(RenderObject* renderer)
49{
50    return adoptRef(new AccessibilityARIAGridCell(renderer));
51}
52
53AccessibilityObject* 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    
66void 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
77void 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