/*
* Copyright (C) 2009 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 "core/accessibility/AXARIAGridRow.h"
#include "core/accessibility/AXTable.h"
namespace WebCore {
AXARIAGridRow::AXARIAGridRow(RenderObject* renderer)
: AXTableRow(renderer)
{
}
AXARIAGridRow::~AXARIAGridRow()
{
}
PassRefPtr<AXARIAGridRow> AXARIAGridRow::create(RenderObject* renderer)
{
return adoptRef(new AXARIAGridRow(renderer));
}
bool AXARIAGridRow::isARIATreeGridRow() const
{
AXObject* parent = parentTable();
if (!parent)
return false;
return parent->ariaRoleAttribute() == TreeGridRole;
}
void AXARIAGridRow::disclosedRows(AccessibilityChildrenVector& disclosedRows)
{
// The contiguous disclosed rows will be the rows in the table that
// have an aria-level of plus 1 from this row.
AXObject* parent = parentObjectUnignored();
if (!parent || !parent->isAXTable())
return;
// Search for rows that match the correct level.
// Only take the subsequent rows from this one that are +1 from this row's level.
int index = rowIndex();
if (index < 0)
return;
unsigned level = hierarchicalLevel();
AccessibilityChildrenVector& allRows = toAXTable(parent)->rows();
int rowCount = allRows.size();
for (int k = index + 1; k < rowCount; ++k) {
AXObject* row = allRows[k].get();
// Stop at the first row that doesn't match the correct level.
if (row->hierarchicalLevel() != level + 1)
break;
disclosedRows.append(row);
}
}
AXObject* AXARIAGridRow::disclosedByRow() const
{
// The row that discloses this one is the row in the table
// that is aria-level subtract 1 from this row.
AXObject* parent = parentObjectUnignored();
if (!parent || !parent->isAXTable())
return 0;
// If the level is 1 or less, than nothing discloses this row.
unsigned level = hierarchicalLevel();
if (level <= 1)
return 0;
// Search for the previous row that matches the correct level.
int index = rowIndex();
AccessibilityChildrenVector& allRows = toAXTable(parent)->rows();
int rowCount = allRows.size();
if (index >= rowCount)
return 0;
for (int k = index - 1; k >= 0; --k) {
AXObject* row = allRows[k].get();
if (row->hierarchicalLevel() == level - 1)
return row;
}
return 0;
}
AXObject* AXARIAGridRow::headerObject()
{
AccessibilityChildrenVector rowChildren = children();
unsigned childrenCount = rowChildren.size();
for (unsigned i = 0; i < childrenCount; ++i) {
AXObject* cell = rowChildren[i].get();
if (cell->ariaRoleAttribute() == RowHeaderRole)
return cell;
}
return 0;
}
} // namespace WebCore