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30 #include "AccessibilityTableCell.h"
32 #include "AXObjectCache.h"
33 #include "HTMLNames.h"
34 #include "RenderObject.h"
35 #include "RenderTableCell.h"
41 using namespace HTMLNames;
43 AccessibilityTableCell::AccessibilityTableCell(RenderObject* renderer)
44 : AccessibilityRenderObject(renderer)
48 AccessibilityTableCell::~AccessibilityTableCell()
52 PassRefPtr<AccessibilityTableCell> AccessibilityTableCell::create(RenderObject* renderer)
54 return adoptRef(new AccessibilityTableCell(renderer));
57 bool AccessibilityTableCell::accessibilityIsIgnored() const
59 AccessibilityObjectInclusion decision = accessibilityIsIgnoredBase();
60 if (decision == IncludeObject)
62 if (decision == IgnoreObject)
66 return AccessibilityRenderObject::accessibilityIsIgnored();
71 AccessibilityObject* AccessibilityTableCell::parentTable() const
73 if (!m_renderer || !m_renderer->isTableCell())
76 // Do not use getOrCreate. parentTable() can be called while the render tree is being modified
77 // by javascript, and creating a table element may try to access the render tree while in a bad state.
78 // By using only get() implies that the AXTable must be created before AXTableCells. This should
79 // always be the case when AT clients access a table.
80 // https://bugs.webkit.org/show_bug.cgi?id=42652
81 return axObjectCache()->get(toRenderTableCell(m_renderer)->table());
84 bool AccessibilityTableCell::isTableCell() const
86 AccessibilityObject* table = parentTable();
87 if (!table || !table->isAccessibilityTable())
93 AccessibilityRole AccessibilityTableCell::roleValue() const
96 return AccessibilityRenderObject::roleValue();
101 void AccessibilityTableCell::rowIndexRange(pair<int, int>& rowRange)
103 if (!m_renderer || !m_renderer->isTableCell())
106 RenderTableCell* renderCell = toRenderTableCell(m_renderer);
107 rowRange.first = renderCell->row();
108 rowRange.second = renderCell->rowSpan();
110 // since our table might have multiple sections, we have to offset our row appropriately
111 RenderTableSection* section = renderCell->section();
112 RenderTable* table = renderCell->table();
113 if (!table || !section)
116 // FIXME: This will skip a table with just a tfoot. Should fix by using RenderTable::topSection.
117 RenderTableSection* tableSection = table->header();
119 tableSection = table->firstBody();
121 unsigned rowOffset = 0;
122 while (tableSection) {
123 if (tableSection == section)
125 rowOffset += tableSection->numRows();
126 tableSection = table->sectionBelow(tableSection, SkipEmptySections);
129 rowRange.first += rowOffset;
132 void AccessibilityTableCell::columnIndexRange(pair<int, int>& columnRange)
134 if (!m_renderer || !m_renderer->isTableCell())
137 RenderTableCell* renderCell = toRenderTableCell(m_renderer);
138 columnRange.first = renderCell->col();
139 columnRange.second = renderCell->colSpan();
142 AccessibilityObject* AccessibilityTableCell::titleUIElement() const
144 // Try to find if the first cell in this row is a <th>. If it is,
145 // then it can act as the title ui element. (This is only in the
146 // case when the table is not appearing as an AXTable.)
147 if (isTableCell() || !m_renderer || !m_renderer->isTableCell())
150 // Table cells that are th cannot have title ui elements, since by definition
151 // they are title ui elements
152 Node* node = m_renderer->node();
153 if (node && node->hasTagName(thTag))
156 RenderTableCell* renderCell = toRenderTableCell(m_renderer);
158 // If this cell is in the first column, there is no need to continue.
159 int col = renderCell->col();
163 int row = renderCell->row();
165 RenderTableSection* section = renderCell->section();
169 RenderTableCell* headerCell = section->primaryCellAt(row, 0);
170 if (!headerCell || headerCell == renderCell)
173 Node* cellElement = headerCell->node();
174 if (!cellElement || !cellElement->hasTagName(thTag))
177 return axObjectCache()->getOrCreate(headerCell);
180 } // namespace WebCore