From 940b4d1848e8c70ab7642901a68594e8016caffc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 18:51:28 +0200 Subject: Adding upstream version 1:7.0.4. Signed-off-by: Daniel Baumann --- include/comphelper/servicehelper.hxx | 117 +++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 include/comphelper/servicehelper.hxx (limited to 'include/comphelper/servicehelper.hxx') diff --git a/include/comphelper/servicehelper.hxx b/include/comphelper/servicehelper.hxx new file mode 100644 index 000000000..435a4c4ff --- /dev/null +++ b/include/comphelper/servicehelper.hxx @@ -0,0 +1,117 @@ +/* -*- 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_SERVICEHELPER_HXX +#define INCLUDED_COMPHELPER_SERVICEHELPER_HXX + +#include +#include +#include +#include + +class UnoTunnelIdInit +{ +private: + css::uno::Sequence< sal_Int8 > m_aSeq; +public: + UnoTunnelIdInit() : m_aSeq(16) + { + rtl_createUuid( reinterpret_cast(m_aSeq.getArray()), nullptr, true ); + } + const css::uno::Sequence< sal_Int8 >& getSeq() const { return m_aSeq; } +}; + +namespace comphelper { + + template + T* getUnoTunnelImplementation( const css::uno::Reference< css::uno::XInterface >& xIface ) + { + css::uno::Reference< css::lang::XUnoTunnel > xUT( xIface, css::uno::UNO_QUERY ); + if (!xUT.is()) + return nullptr; + + return reinterpret_cast(sal::static_int_cast(xUT->getSomething( T::getUnoTunnelId() ))); + } + +} + +template +inline bool isUnoTunnelId(const css::uno::Sequence< sal_Int8 >& rId) +{ + return rId.getLength() == 16 + && memcmp( T::getUnoTunnelId().getConstArray(), rId.getConstArray(), 16 ) == 0; +} + +/** the UNO3_GETIMPLEMENTATION_* macros implement a static helper function + that gives access to your implementation for a given interface reference, + if possible. + + Example: + MyClass* pClass = comphelper::getUnoTunnelImplementation( xRef ); + + Usage: + Put a UNO3_GETIMPLEMENTATION_DECL( classname ) inside your class + definition and UNO3_GETIMPLEMENTATION_IMPL( classname ) inside + your cxx file. Your class must inherit css::lang::XUnoTunnel + and export it with queryInterface. Implementation of XUnoTunnel is + done by this macro. +*/ +#define UNO3_GETIMPLEMENTATION_DECL( classname ) \ + static const css::uno::Sequence< sal_Int8 > & getUnoTunnelId() throw(); \ + virtual sal_Int64 SAL_CALL getSomething( const css::uno::Sequence< sal_Int8 >& aIdentifier ) override; + +#define UNO3_GETIMPLEMENTATION_BASE_IMPL( classname ) \ +namespace \ +{ \ + class the##classname##UnoTunnelId : public rtl::Static< UnoTunnelIdInit, the##classname##UnoTunnelId> {}; \ +} \ +const css::uno::Sequence< sal_Int8 > & classname::getUnoTunnelId() throw() \ +{ \ + return the##classname##UnoTunnelId::get().getSeq(); \ +} + +#define UNO3_GETIMPLEMENTATION_IMPL( classname )\ +UNO3_GETIMPLEMENTATION_BASE_IMPL(classname)\ +sal_Int64 SAL_CALL classname::getSomething( const css::uno::Sequence< sal_Int8 >& rId ) \ +{ \ + if( isUnoTunnelId(rId) ) \ + { \ + return sal::static_int_cast(reinterpret_cast(this)); \ + } \ + return 0; \ +} + +#define UNO3_GETIMPLEMENTATION2_IMPL( classname, baseclass )\ +UNO3_GETIMPLEMENTATION_BASE_IMPL(classname)\ +sal_Int64 SAL_CALL classname::getSomething( const css::uno::Sequence< sal_Int8 >& rId ) \ +{ \ + if( isUnoTunnelId(rId) ) \ + { \ + return sal::static_int_cast(reinterpret_cast(this)); \ + } \ + else \ + { \ + return baseclass::getSomething( rId ); \ + } \ +} + + +#endif // INCLUDED_COMPHELPER_SERVICEHELPER_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3