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/* -*- 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 <sal/config.h>
#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
#include <o3tl/safeint.hxx>
#include <unotools/accessiblerelationsethelper.hxx>
#include <vector>
#include <comphelper/sequence.hxx>
using namespace ::utl;
using namespace ::com::sun::star;
using namespace ::com::sun::star::accessibility;
class AccessibleRelationSetHelperImpl
{
public:
AccessibleRelationSetHelperImpl();
AccessibleRelationSetHelperImpl(const AccessibleRelationSetHelperImpl& rImpl);
/// @throws uno::RuntimeException
sal_Int32 getRelationCount() const;
/// @throws lang::IndexOutOfBoundsException
/// @throws uno::RuntimeException
AccessibleRelation const & getRelation( sal_Int32 nIndex ) const;
/// @throws uno::RuntimeException
bool containsRelation( sal_Int16 aRelationType ) const;
/// @throws uno::RuntimeException
AccessibleRelation getRelationByType( sal_Int16 aRelationType ) const;
/// @throws uno::RuntimeException
void AddRelation(const AccessibleRelation& rRelation);
private:
std::vector<AccessibleRelation> maRelations;
};
AccessibleRelationSetHelperImpl::AccessibleRelationSetHelperImpl()
{
}
AccessibleRelationSetHelperImpl::AccessibleRelationSetHelperImpl(const AccessibleRelationSetHelperImpl& rImpl)
: maRelations(rImpl.maRelations)
{
}
sal_Int32 AccessibleRelationSetHelperImpl::getRelationCount() const
{
return maRelations.size();
}
AccessibleRelation const & AccessibleRelationSetHelperImpl::getRelation( sal_Int32 nIndex ) const
{
if ((nIndex < 0) || (o3tl::make_unsigned(nIndex) >= maRelations.size()))
throw lang::IndexOutOfBoundsException();
return maRelations[nIndex];
}
bool AccessibleRelationSetHelperImpl::containsRelation( sal_Int16 aRelationType ) const
{
AccessibleRelation defaultRelation; // default is INVALID
AccessibleRelation relationByType = getRelationByType(aRelationType);
return relationByType.RelationType != defaultRelation.RelationType;
}
AccessibleRelation AccessibleRelationSetHelperImpl::getRelationByType( sal_Int16 aRelationType ) const
{
sal_Int32 nCount(getRelationCount());
sal_Int32 i(0);
while (i < nCount)
{
if (maRelations[i].RelationType == aRelationType)
return maRelations[i];
i++;
}
return AccessibleRelation();
}
void AccessibleRelationSetHelperImpl::AddRelation(const AccessibleRelation& rRelation)
{
sal_Int32 nCount(getRelationCount());
sal_Int32 i(0);
bool bFound(false);
while ((i < nCount) && !bFound)
{
if (maRelations[i].RelationType == rRelation.RelationType)
bFound = true;
else
i++;
}
if (bFound)
maRelations[i].TargetSet = comphelper::concatSequences(maRelations[i].TargetSet, rRelation.TargetSet);
else
maRelations.push_back(rRelation);
}
//===== internal ============================================================
AccessibleRelationSetHelper::AccessibleRelationSetHelper ()
: mpHelperImpl(new AccessibleRelationSetHelperImpl)
{
}
AccessibleRelationSetHelper::AccessibleRelationSetHelper (const AccessibleRelationSetHelper& rHelper)
: cppu::WeakImplHelper<XAccessibleRelationSet>(rHelper)
{
if (rHelper.mpHelperImpl)
mpHelperImpl.reset(new AccessibleRelationSetHelperImpl(*rHelper.mpHelperImpl));
else
mpHelperImpl.reset(new AccessibleRelationSetHelperImpl());
}
AccessibleRelationSetHelper::~AccessibleRelationSetHelper()
{
}
//===== XAccessibleRelationSet ==============================================
/** Returns the number of relations in this relation set.
@return
Returns the number of relations or zero if there are none.
*/
sal_Int32 SAL_CALL
AccessibleRelationSetHelper::getRelationCount( )
{
osl::MutexGuard aGuard (maMutex);
return mpHelperImpl->getRelationCount();
}
/** Returns the relation of this relation set that is specified by
the given index.
@param nIndex
This index specifies the relatio to return.
@return
For a valid index, i.e. inside the range 0 to the number of
relations minus one, the returned value is the requested
relation. If the index is invalid then the returned relation
has the type INVALID.
*/
AccessibleRelation SAL_CALL
AccessibleRelationSetHelper::getRelation( sal_Int32 nIndex )
{
osl::MutexGuard aGuard (maMutex);
return mpHelperImpl->getRelation(nIndex);
}
/** Tests whether the relation set contains a relation matching the
specified key.
@param aRelationType
The type of relation to look for in this set of relations. This
has to be one of the constants of
<type>AccessibleRelationType</type>.
@return
Returns <TRUE/> if there is a (at least one) relation of the
given type and <FALSE/> if there is no such relation in the set.
*/
sal_Bool SAL_CALL
AccessibleRelationSetHelper::containsRelation( sal_Int16 aRelationType )
{
osl::MutexGuard aGuard (maMutex);
return mpHelperImpl->containsRelation(aRelationType);
}
/** Retrieve and return the relation with the given relation type.
@param aRelationType
The type of the relation to return. This has to be one of the
constants of <type>AccessibleRelationType</type>.
@return
If a relation with the given type could be found than (a copy
of) this relation is returned. Otherwise a relation with the
type INVALID is returned.
*/
AccessibleRelation SAL_CALL
AccessibleRelationSetHelper::getRelationByType( sal_Int16 aRelationType )
{
osl::MutexGuard aGuard (maMutex);
return mpHelperImpl->getRelationByType(aRelationType);
}
void AccessibleRelationSetHelper::AddRelation(const AccessibleRelation& rRelation)
{
osl::MutexGuard aGuard (maMutex);
mpHelperImpl->AddRelation(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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