/* -*- 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 #include #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(nRows) * static_cast(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(nRows) * static_cast(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(nRows) * static_cast(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(nRows) * static_cast(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 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ distro/vector/vector-7.5 LibreOffice 核心代码仓库文档基金会
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