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-rw-r--r-- | include/unotools/accessiblerelationsethelper.hxx | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/include/unotools/accessiblerelationsethelper.hxx b/include/unotools/accessiblerelationsethelper.hxx new file mode 100644 index 0000000000..35277ae5bd --- /dev/null +++ b/include/unotools/accessiblerelationsethelper.hxx @@ -0,0 +1,126 @@ +/* -*- 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 . + */ + +#ifndef INCLUDED_UNOTOOLS_ACCESSIBLERELATIONSETHELPER_HXX +#define INCLUDED_UNOTOOLS_ACCESSIBLERELATIONSETHELPER_HXX + +#include <unotools/unotoolsdllapi.h> + +#include <com/sun/star/accessibility/XAccessibleRelationSet.hpp> +#include <cppuhelper/implbase.hxx> +#include <mutex> +#include <vector> + +//= XAccessibleRelationSet helper classes + +//... namespace utl ....................................................... +namespace utl +{ +/** @descr + This base class provides an implementation of the + <code>AccessibleRelationSet</code> service. +*/ +class UNOTOOLS_DLLPUBLIC AccessibleRelationSetHelper final + : public cppu::WeakImplHelper<css::accessibility::XAccessibleRelationSet> +{ +public: + //===== internal ======================================================== + AccessibleRelationSetHelper(); + AccessibleRelationSetHelper(const AccessibleRelationSetHelper& rHelper); + +private: + virtual ~AccessibleRelationSetHelper() override; + +public: + //===== XAccessibleRelationSet ========================================== + + /** Returns the number of relations in this relation set. + + @return + Returns the number of relations or zero if there are none. + */ + virtual sal_Int32 SAL_CALL getRelationCount() override; + + /** 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. + + */ + virtual css::accessibility::AccessibleRelation SAL_CALL getRelation(sal_Int32 nIndex) override; + + /** 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 + AccessibleRelationType. + + @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. + */ + virtual sal_Bool SAL_CALL containsRelation(sal_Int16 aRelationType) override; + + /** 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 AccessibleRelationType. + + @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. + */ + virtual css::accessibility::AccessibleRelation SAL_CALL + getRelationByType(sal_Int16 aRelationType) override; + + /// @throws uno::RuntimeException + void AddRelation(const css::accessibility::AccessibleRelation& rRelation); + + //===== XTypeProvider =================================================== + + /** Returns a sequence of all supported interfaces. + */ + virtual css::uno::Sequence<css::uno::Type> SAL_CALL getTypes() override; + + /** Returns an implementation id. + */ + virtual css::uno::Sequence<sal_Int8> SAL_CALL getImplementationId() override; + +private: + /// Mutex guarding this object. + std::mutex maMutex; + /// The implementation of this helper interface. + std::vector<css::accessibility::AccessibleRelation> maRelations; +}; +} +//... namespace utl ....................................................... +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |