/* | |
* Copyright (C) 2008 Apple Inc. All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of | |
* its contributors may be used to endorse or promote products derived | |
* from this software without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | |
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | |
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#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()->getOrCreate(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(); | |
// since our table might have multiple sections, we have to offset our row appropriately | |
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 | |
{ | |
// Try to find if the first cell in this row is a <th>. If it is, | |
// then it can act as the title ui element. (This is only in the | |
// case when the table is not appearing as an AXTable.) | |
if (isTableCell() || !m_renderer || !m_renderer->isTableCell()) | |
return 0; | |
// Table cells that are th cannot have title ui elements, since by definition | |
// they are title ui elements | |
Node* node = m_renderer->node(); | |
if (node && node->hasTagName(thTag)) | |
return 0; | |
RenderTableCell* renderCell = toRenderTableCell(m_renderer); | |
// If this cell is in the first column, there is no need to continue. | |
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); | |
} | |
} // namespace WebCore |