/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at
http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at
http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <osx/a11yfactory.h>
#include <sal/log.hxx>
#include "a11ytablewrapper.h"
using namespace ::com::sun::star::accessibility;
using namespace ::com::sun::star::awt;
using namespace ::com::sun::star::uno;
@implementation AquaA11yTableWrapper : AquaA11yWrapper
+(id)childrenAttributeForElement:(AquaA11yTableWrapper *)wrapper
{
XAccessibleTable * accessibleTable = [ wrapper accessibleTable ];
NSArray* pResult = nil;
if( accessibleTable )
{
NSMutableArray * cells = [ [ NSMutableArray alloc ] init ];
try
{
sal_Int32 nRows = accessibleTable->getAccessibleRowCount();
sal_Int32 nCols = accessibleTable->getAccessibleColumnCount();
// tdf#152648 Handle overflow when multiplying rows and columns
sal_Int64 nCells = static_cast<sal_Int64>(nRows) * static_cast<sal_Int64>(nCols);
if( nCells >= 0 && nCells < MAXIMUM_ACCESSIBLE_TABLE_CELLS )
{
// make all children visible to the hierarchy
for ( sal_Int32 rowCount = 0; rowCount < nRows; rowCount++ )
{
for ( sal_Int32 columnCount = 0; columnCount < nCols; columnCount++ )
{
Reference < XAccessible > rAccessibleCell = accessibleTable -> getAccessibleCellAt ( rowCount
, columnCount );
if ( rAccessibleCell.is() )
{
id cell_wrapper = [ AquaA11yFactory wrapperForAccessibleContext: rAccessibleCell -> getAccessibleContext() ];
[ cells addObject: cell_wrapper ];
[ cell_wrapper release ];
}
}
}
}
else
{
XAccessibleComponent * accessibleComponent = [ wrapper accessibleComponent ];
// find out which cells are actually visible by determining the top-left-cell and the bottom-right-cell
Size tableSize = accessibleComponent -> getSize();
Point point;
point.X = 0;
point.Y = 0;
Reference < XAccessible > rAccessibleTopLeft = accessibleComponent -> getAccessibleAtPoint ( point );
point.X = tableSize.Width - 1;
point.Y = tableSize.Height - 1;
Reference < XAccessible > rAccessibleBottomRight = accessibleComponent -> getAccessibleAtPoint ( point );
if ( rAccessibleTopLeft.is() && rAccessibleBottomRight.is() )
{
sal_Int64 idxTopLeft = rAccessibleTopLeft -> getAccessibleContext() -> getAccessibleIndexInParent();
sal_Int64 idxBottomRight = rAccessibleBottomRight -> getAccessibleContext() -> getAccessibleIndexInParent();
sal_Int32 rowTopLeft = accessibleTable -> getAccessibleRow ( idxTopLeft );
sal_Int32 columnTopLeft = accessibleTable -> getAccessibleColumn ( idxTopLeft );
sal_Int32 rowBottomRight = accessibleTable -> getAccessibleRow ( idxBottomRight );
sal_Int32 columnBottomRight = accessibleTable -> getAccessibleColumn ( idxBottomRight );
SAL_WARN("vcl", "creating " << ((rowBottomRight - rowTopLeft) * (columnBottomRight - columnTopLeft)) << " cells");
// create an array containing the visible cells
for ( sal_Int32 rowCount = rowTopLeft; rowCount <= rowBottomRight; rowCount++ )
{
for ( sal_Int32 columnCount = columnTopLeft; columnCount <= columnBottomRight; columnCount++ )
{
Reference < XAccessible > rAccessibleCell = accessibleTable -> getAccessibleCellAt ( rowCount, columnCount );
if ( rAccessibleCell.is() )
{
id cell_wrapper = [ AquaA11yFactory wrapperForAccessibleContext: rAccessibleCell -> getAccessibleContext() ];
[ cells addObject: cell_wrapper ];
[ cell_wrapper release ];
}
}
}
}
}
pResult = NSAccessibilityUnignoredChildren( cells );
}
catch (const Exception &)
{
}
[cells autorelease];
}
return pResult;
}
+(void)addAttributeNamesTo: (NSMutableArray *)attributeNames object: (AquaA11yWrapper*)pObject
{
XAccessibleTable * accessibleTable = [ pObject accessibleTable ];
if( accessibleTable )
{
sal_Int32 nRows = accessibleTable->getAccessibleRowCount();
sal_Int32 nCols = accessibleTable->getAccessibleColumnCount();
// tdf#152648 Handle overflow when multiplying rows and columns
sal_Int64 nCells = static_cast<sal_Int64>(nRows) * static_cast<sal_Int64>(nCols);
if( nCells >= 0 && nCells < MAXIMUM_ACCESSIBLE_TABLE_CELLS )
{
[ attributeNames addObject: NSAccessibilityRowsAttribute ];
[ attributeNames addObject: NSAccessibilityColumnsAttribute ];
}
}
}
-(id)rowsAttribute
{
NSArray* pResult = nil;
XAccessibleTable * accessibleTable = [ self accessibleTable ];
if( accessibleTable )
{
sal_Int32 nRows = accessibleTable->getAccessibleRowCount();
sal_Int32 nCols = accessibleTable->getAccessibleColumnCount();
// tdf#152648 Handle overflow when multiplying rows and columns
sal_Int64 nCells = static_cast<sal_Int64>(nRows) * static_cast<sal_Int64>(nCols);
if( nCells >= 0 && nCells < MAXIMUM_ACCESSIBLE_TABLE_CELLS )
{
NSMutableArray * cells = [ [ NSMutableArray alloc ] init ];
try
{
for( sal_Int32 n = 0; n < nRows; n++ )
{
Reference < XAccessible > rAccessibleCell = accessibleTable -> getAccessibleCellAt ( n, 0 );
if ( rAccessibleCell.is() )
{
id cell_wrapper = [ AquaA11yFactory wrapperForAccessibleContext: rAccessibleCell -> getAccessibleContext() ];
[ cells addObject: cell_wrapper ];
[ cell_wrapper release ];
}
}
pResult = NSAccessibilityUnignoredChildren( cells );
}
catch (const Exception &)
{
pResult = nil;
}
[ cells autorelease ];
}
}
return pResult;
}
-(id)columnsAttribute
{
NSArray* pResult = nil;
XAccessibleTable * accessibleTable = [ self accessibleTable ];
if( accessibleTable )
{
sal_Int32 nRows = accessibleTable->getAccessibleRowCount();
sal_Int32 nCols = accessibleTable->getAccessibleColumnCount();
// tdf#152648 Handle overflow when multiplying rows and columns
sal_Int64 nCells = static_cast<sal_Int64>(nRows) * static_cast<sal_Int64>(nCols);
if( nCells >= 0 && nCells < MAXIMUM_ACCESSIBLE_TABLE_CELLS )
{
NSMutableArray * cells = [ [ NSMutableArray alloc ] init ];
try
{
// find out number of columns
for( sal_Int32 n = 0; n < nCols; n++ )
{
Reference < XAccessible > rAccessibleCell = accessibleTable -> getAccessibleCellAt ( 0, n );
if ( rAccessibleCell.is() )
{
id cell_wrapper = [ AquaA11yFactory wrapperForAccessibleContext: rAccessibleCell -> getAccessibleContext() ];
[ cells addObject: cell_wrapper ];
[ cell_wrapper release ];
}
}
pResult = NSAccessibilityUnignoredChildren( cells );
}
catch (const Exception &)
{
pResult = nil;
}
[ cells autorelease ];
}
}
return pResult;
}
@end
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