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| -rw-r--r-- | include/comphelper/uno3.hxx | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/include/comphelper/uno3.hxx b/include/comphelper/uno3.hxx new file mode 100644 index 000000000..517398fd7 --- /dev/null +++ b/include/comphelper/uno3.hxx @@ -0,0 +1,169 @@ +/* -*- 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_COMPHELPER_UNO3_HXX +#define INCLUDED_COMPHELPER_UNO3_HXX + +#include <com/sun/star/uno/XAggregation.hpp> +#include <comphelper/sequence.hxx> + + +namespace comphelper +{ + /** used for declaring UNO3-Defaults, i.e. acquire/release + */ + #define DECLARE_UNO3_DEFAULTS(classname, baseclass) \ + virtual void SAL_CALL acquire() noexcept override { baseclass::acquire(); } \ + virtual void SAL_CALL release() noexcept override { baseclass::release(); } + + /** used for declaring UNO3-Defaults, i.e. acquire/release if you want to forward all queryInterfaces to the base class, + (e.g. if you override queryAggregation) + */ + #define DECLARE_UNO3_AGG_DEFAULTS(classname, baseclass) \ + virtual void SAL_CALL acquire() noexcept override { baseclass::acquire(); } \ + virtual void SAL_CALL release() noexcept override { baseclass::release(); } \ + virtual css::uno::Any SAL_CALL queryInterface(const css::uno::Type& _rType) override \ + { return baseclass::queryInterface(_rType); } + + /** Use this macro to forward XComponent methods to base class + + When using the ::cppu::WeakComponentImplHelper base classes to + implement a UNO interface, a problem occurs when the interface + itself already derives from XComponent (like e.g. awt::XWindow + or awt::XControl): ::cppu::WeakComponentImplHelper is then + still abstract. Using this macro in the most derived class + definition provides overrides for the XComponent methods, + forwarding them to the given baseclass. + + @param classname + Name of the class this macro is issued within + + @param baseclass + Name of the baseclass that should have the XInterface methods + forwarded to - that's usually the WeakComponentImplHelperN base + + @param implhelper + Name of the baseclass that should have the XComponent methods + forwarded to - in the case of the WeakComponentImplHelper, + that would be ::cppu::WeakComponentImplHelperBase + */ + #define DECLARE_UNO3_XCOMPONENT_AGG_DEFAULTS(classname, baseclass, implhelper) \ + virtual void SAL_CALL acquire() noexcept override { baseclass::acquire(); } \ + virtual void SAL_CALL release() noexcept override { baseclass::release(); } \ + virtual css::uno::Any SAL_CALL queryInterface(const css::uno::Type& _rType) override \ + { return baseclass::queryInterface(_rType); } \ + virtual void SAL_CALL dispose() override \ + { \ + implhelper::dispose(); \ + } \ + virtual void SAL_CALL addEventListener( \ + css::uno::Reference< css::lang::XEventListener > const & xListener ) override \ + { \ + implhelper::addEventListener(xListener); \ + } \ + virtual void SAL_CALL removeEventListener( \ + css::uno::Reference< css::lang::XEventListener > const & xListener ) override \ + { \ + implhelper::removeEventListener(xListener); \ + } + + //= deriving from multiple XInterface-derived classes + + //= forwarding/merging XInterface functionality + + #define DECLARE_XINTERFACE( ) \ + virtual css::uno::Any SAL_CALL queryInterface( const css::uno::Type& aType ) override; \ + virtual void SAL_CALL acquire() noexcept override; \ + virtual void SAL_CALL release() noexcept override; + + #define IMPLEMENT_FORWARD_REFCOUNT( classname, refcountbase ) \ + void SAL_CALL classname::acquire() noexcept { refcountbase::acquire(); } \ + void SAL_CALL classname::release() noexcept { refcountbase::release(); } + + #define IMPLEMENT_FORWARD_XINTERFACE2( classname, refcountbase, baseclass2 ) \ + IMPLEMENT_FORWARD_REFCOUNT( classname, refcountbase ) \ + css::uno::Any SAL_CALL classname::queryInterface( const css::uno::Type& _rType ) \ + { \ + css::uno::Any aReturn = refcountbase::queryInterface( _rType ); \ + if ( !aReturn.hasValue() ) \ + aReturn = baseclass2::queryInterface( _rType ); \ + return aReturn; \ + } + + #define IMPLEMENT_FORWARD_XINTERFACE3( classname, refcountbase, baseclass2, baseclass3 ) \ + IMPLEMENT_FORWARD_REFCOUNT( classname, refcountbase ) \ + css::uno::Any SAL_CALL classname::queryInterface( const css::uno::Type& _rType ) \ + { \ + css::uno::Any aReturn = refcountbase::queryInterface( _rType ); \ + if ( !aReturn.hasValue() ) \ + { \ + aReturn = baseclass2::queryInterface( _rType ); \ + if ( !aReturn.hasValue() ) \ + aReturn = baseclass3::queryInterface( _rType ); \ + } \ + return aReturn; \ + } + + + //= forwarding/merging XTypeProvider functionality + + #define DECLARE_XTYPEPROVIDER( ) \ + virtual css::uno::Sequence< css::uno::Type > SAL_CALL getTypes( ) override; \ + virtual css::uno::Sequence< sal_Int8 > SAL_CALL getImplementationId( ) override; + + #define IMPLEMENT_GET_IMPLEMENTATION_ID( classname ) \ + css::uno::Sequence< sal_Int8 > SAL_CALL classname::getImplementationId( ) \ + { \ + return css::uno::Sequence<sal_Int8>(); \ + } + + #define IMPLEMENT_FORWARD_XTYPEPROVIDER2( classname, baseclass1, baseclass2 ) \ + css::uno::Sequence< css::uno::Type > SAL_CALL classname::getTypes( ) \ + { \ + return ::comphelper::concatSequences( \ + baseclass1::getTypes(), \ + baseclass2::getTypes() \ + ); \ + } \ + \ + IMPLEMENT_GET_IMPLEMENTATION_ID( classname ) + + /** ask for an iface of an aggregated object + usage:<br/> + Reference<XFoo> xFoo;<br/> + if (query_aggregation(xAggregatedObject, xFoo))<br/> + ... + */ + template <class iface> + bool query_aggregation(const css::uno::Reference< css::uno::XAggregation >& _rxAggregate, css::uno::Reference<iface>& _rxOut) + { + _rxOut.clear(); + if (_rxAggregate.is()) + { + _rxAggregate->queryAggregation(cppu::UnoType<iface>::get()) + >>= _rxOut; + } + return _rxOut.is(); + } +} // namespace comphelper + + +#endif // INCLUDED_COMPHELPER_UNO3_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |