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