/* -*- 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 . */ /* * This file is part of LibreOffice published API. */ #ifndef INCLUDED_UNO_CURRENT_CONTEXT_HXX #define INCLUDED_UNO_CURRENT_CONTEXT_HXX #include "sal/config.h" #include <cstddef> #include "uno/current_context.h" #include "uno/lbnames.h" #include "com/sun/star/uno/XCurrentContext.hpp" namespace com { namespace sun { namespace star { namespace uno { /** Getting the current context. @attention Don't spread the returned interface around to other threads. Every thread has its own current context. @return current context or null ref, if none is set */ inline Reference< XCurrentContext > SAL_CALL getCurrentContext() { Reference< XCurrentContext > xRet; ::rtl::OUString aEnvTypeName( CPPU_CURRENT_LANGUAGE_BINDING_NAME ); ::uno_getCurrentContext( reinterpret_cast<void **>(&xRet), aEnvTypeName.pData, NULL ); return xRet; } /** Setting the current context. @param xContext current context to be set @return true, if context has been successfully set */ inline bool SAL_CALL setCurrentContext( Reference< XCurrentContext > const & xContext ) { ::rtl::OUString aEnvTypeName( CPPU_CURRENT_LANGUAGE_BINDING_NAME ); return ::uno_setCurrentContext( xContext.get(), aEnvTypeName.pData, NULL ); } /** Objects of this class are used for applying a current context until they are destructed, i.e. the ctor of this class saves the previous and sets the given context while the dtor restores the previous one upon destruction. */ class ContextLayer { /** this C++ environment type name. */ ::rtl::OUString m_aEnvTypeName; /** previous context */ Reference< XCurrentContext > m_xPreviousContext; public: /** Constructor: Saves the previous context and sets the new (given) one. @param xNewContext new context to be set */ inline ContextLayer( Reference< XCurrentContext > const & xNewContext = Reference< XCurrentContext >() ); /** Destructor: restores the previous context. */ inline ~ContextLayer(); /** Gets the previously set context. @return the previously set context */ Reference< XCurrentContext > SAL_CALL getPreviousContext() const { return m_xPreviousContext; } }; inline ContextLayer::ContextLayer( Reference< XCurrentContext > const & xNewContext ) : m_aEnvTypeName( CPPU_CURRENT_LANGUAGE_BINDING_NAME ) { ::uno_getCurrentContext( reinterpret_cast<void **>(&m_xPreviousContext), m_aEnvTypeName.pData, NULL ); ::uno_setCurrentContext( xNewContext.get(), m_aEnvTypeName.pData, NULL ); } inline ContextLayer::~ContextLayer() { ::uno_setCurrentContext( m_xPreviousContext.get(), m_aEnvTypeName.pData, NULL ); } } } } } #endif /* vim:set shiftwidth=4 softtabstop=4 expandtab: */