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Diffstat (limited to 'unotools/source/accessibility/accessiblerelationsethelper.cxx')
| -rw-r--r-- | unotools/source/accessibility/accessiblerelationsethelper.cxx | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/unotools/source/accessibility/accessiblerelationsethelper.cxx b/unotools/source/accessibility/accessiblerelationsethelper.cxx new file mode 100644 index 000000000..8f7062343 --- /dev/null +++ b/unotools/source/accessibility/accessiblerelationsethelper.cxx @@ -0,0 +1,226 @@ +/* -*- 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>(); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |