AccessibilityTableCell.cpp [plain text]
#include "config.h"
#include "AccessibilityTableCell.h"
#include "AXObjectCache.h"
#include "HTMLNames.h"
#include "RenderObject.h"
#include "RenderTableCell.h"
using namespace std;
namespace WebCore {
using namespace HTMLNames;
AccessibilityTableCell::AccessibilityTableCell(RenderObject* renderer)
: AccessibilityRenderObject(renderer)
{
}
AccessibilityTableCell::~AccessibilityTableCell()
{
}
PassRefPtr<AccessibilityTableCell> AccessibilityTableCell::create(RenderObject* renderer)
{
return adoptRef(new AccessibilityTableCell(renderer));
}
bool AccessibilityTableCell::accessibilityIsIgnored() const
{
AccessibilityObjectInclusion decision = accessibilityIsIgnoredBase();
if (decision == IncludeObject)
return false;
if (decision == IgnoreObject)
return true;
if (!isTableCell())
return AccessibilityRenderObject::accessibilityIsIgnored();
return false;
}
AccessibilityObject* AccessibilityTableCell::parentTable() const
{
if (!m_renderer || !m_renderer->isTableCell())
return false;
return axObjectCache()->get(toRenderTableCell(m_renderer)->table());
}
bool AccessibilityTableCell::isTableCell() const
{
AccessibilityObject* table = parentTable();
if (!table || !table->isDataTable())
return false;
return true;
}
AccessibilityRole AccessibilityTableCell::roleValue() const
{
if (!isTableCell())
return AccessibilityRenderObject::roleValue();
return CellRole;
}
void AccessibilityTableCell::rowIndexRange(pair<int, int>& rowRange)
{
if (!m_renderer || !m_renderer->isTableCell())
return;
RenderTableCell* renderCell = toRenderTableCell(m_renderer);
rowRange.first = renderCell->row();
rowRange.second = renderCell->rowSpan();
RenderTableSection* section = renderCell->section();
RenderTable* table = renderCell->table();
if (!table || !section)
return;
RenderTableSection* tableSection = table->header();
if (!tableSection)
tableSection = table->firstBody();
unsigned rowOffset = 0;
while (tableSection) {
if (tableSection == section)
break;
rowOffset += tableSection->numRows();
tableSection = table->sectionBelow(tableSection, true);
}
rowRange.first += rowOffset;
}
void AccessibilityTableCell::columnIndexRange(pair<int, int>& columnRange)
{
if (!m_renderer || !m_renderer->isTableCell())
return;
RenderTableCell* renderCell = toRenderTableCell(m_renderer);
columnRange.first = renderCell->col();
columnRange.second = renderCell->colSpan();
}
AccessibilityObject* AccessibilityTableCell::titleUIElement() const
{
if (isTableCell() || !m_renderer || !m_renderer->isTableCell())
return 0;
Node* node = m_renderer->node();
if (node && node->hasTagName(thTag))
return 0;
RenderTableCell* renderCell = toRenderTableCell(m_renderer);
int col = renderCell->col();
if (!col)
return 0;
int row = renderCell->row();
RenderTableSection* section = renderCell->section();
if (!section)
return 0;
RenderTableCell* headerCell = section->cellAt(row, 0).cell;
if (!headerCell || headerCell == renderCell)
return 0;
Node* cellElement = headerCell->node();
if (!cellElement || !cellElement->hasTagName(thTag))
return 0;
return axObjectCache()->getOrCreate(headerCell);
}
}