accessiblerelationsethelper.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *
 * 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
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 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
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#include <sal/config.h>
 
#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
#include <o3tl/safeint.hxx>
#include <unotools/accessiblerelationsethelper.hxx>
#include <comphelper/sequence.hxx>
 
using namespace ::utl;
using namespace ::com::sun::star;
using namespace ::com::sun::star::accessibility;
 
namespace
{
    AccessibleRelation lcl_getRelationByType( std::vector<AccessibleRelation>& raRelations, sal_Int16 aRelationType )
    {
        for (const auto& aRelation: raRelations)
        {
            if (aRelation.RelationType == aRelationType)
                return aRelation;
        }
        return AccessibleRelation();
    }
}
//=====  internal  ============================================================
 
AccessibleRelationSetHelper::AccessibleRelationSetHelper ()
{
}
 
AccessibleRelationSetHelper::AccessibleRelationSetHelper (const AccessibleRelationSetHelper& rHelper)
    : cppu::WeakImplHelper<XAccessibleRelationSet>(rHelper),
      maRelations(rHelper.maRelations)
{
}
 
AccessibleRelationSetHelper::~AccessibleRelationSetHelper()
{
}
 
//=====  XAccessibleRelationSet  ==============================================
 
sal_Int32 SAL_CALL
    AccessibleRelationSetHelper::getRelationCount(  )
{
    std::scoped_lock aGuard (maMutex);
 
    return maRelations.size();
}
 
 AccessibleRelation SAL_CALL
        AccessibleRelationSetHelper::getRelation( sal_Int32 nIndex )
{
    std::scoped_lock aGuard (maMutex);
 
    if ((nIndex < 0) || (o3tl::make_unsigned(nIndex) >= maRelations.size()))
        throw lang::IndexOutOfBoundsException();
 
    return maRelations[nIndex];
}
 
sal_Bool SAL_CALL
    AccessibleRelationSetHelper::containsRelation( sal_Int16 aRelationType )
{
    std::scoped_lock aGuard (maMutex);
 
    AccessibleRelation defaultRelation; // default is INVALID
    AccessibleRelation relationByType = lcl_getRelationByType(maRelations, aRelationType);
    return relationByType.RelationType != defaultRelation.RelationType;
}
 
AccessibleRelation SAL_CALL
        AccessibleRelationSetHelper::getRelationByType( sal_Int16 aRelationType )
{
    std::scoped_lock aGuard (maMutex);
 
    return lcl_getRelationByType(maRelations, aRelationType);
}
 
void AccessibleRelationSetHelper::AddRelation(const AccessibleRelation& rRelation)
{
    std::scoped_lock aGuard (maMutex);
 
    for (auto& aRelation: maRelations)
    {
        if (aRelation.RelationType == rRelation.RelationType)
        {
            aRelation.TargetSet = comphelper::concatSequences(aRelation.TargetSet, rRelation.TargetSet);
            return;
        }
    }
    maRelations.push_back(rRelation);
}
 
//=====  XTypeProvider  =======================================================
 
uno::Sequence< css::uno::Type> AccessibleRelationSetHelper::getTypes()
{
    static const uno::Sequence< css::uno::Type> aTypes {
        cppu::UnoType<XAccessibleRelationSet>::get(),
        cppu::UnoType<lang::XTypeProvider>::get()
    };
    return aTypes;
}
 
uno::Sequence<sal_Int8> SAL_CALL AccessibleRelationSetHelper::getImplementationId()
{
    return css::uno::Sequence<sal_Int8>();
}
 
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