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Diffstat (limited to 'include/uno/current_context.hxx')
-rw-r--r-- | include/uno/current_context.hxx | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/include/uno/current_context.hxx b/include/uno/current_context.hxx new file mode 100644 index 000000000000..5812db74700c --- /dev/null +++ b/include/uno/current_context.hxx @@ -0,0 +1,119 @@ +/* -*- 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 _UNO_CURRENT_CONTEXT_HXX_ +#define _UNO_CURRENT_CONTEXT_HXX_ + +#include <uno/current_context.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() + SAL_THROW(()) +{ + Reference< XCurrentContext > xRet; + ::rtl::OUString aEnvTypeName( RTL_CONSTASCII_USTRINGPARAM(CPPU_CURRENT_LANGUAGE_BINDING_NAME) ); + ::uno_getCurrentContext( (void **)&xRet, aEnvTypeName.pData, 0 ); + 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 ) + SAL_THROW(()) +{ + ::rtl::OUString aEnvTypeName( RTL_CONSTASCII_USTRINGPARAM(CPPU_CURRENT_LANGUAGE_BINDING_NAME) ); + return (::uno_setCurrentContext( xContext.get(), aEnvTypeName.pData, 0 ) != sal_False); +} + +/** 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 >() ) + SAL_THROW(()); + /** Destructor: restores the previous context. + */ + inline ~ContextLayer() SAL_THROW(()); + + /** Gets the previously set context. + + @return the previously set context + */ + inline Reference< XCurrentContext > SAL_CALL getPreviousContext() const + SAL_THROW(()) + { return m_xPreviousContext; } +}; +//__________________________________________________________________________________________________ +inline ContextLayer::ContextLayer( Reference< XCurrentContext > const & xNewContext ) + SAL_THROW(()) + : m_aEnvTypeName( RTL_CONSTASCII_USTRINGPARAM(CPPU_CURRENT_LANGUAGE_BINDING_NAME) ) +{ + ::uno_getCurrentContext( (void **)&m_xPreviousContext, m_aEnvTypeName.pData, 0 ); + ::uno_setCurrentContext( xNewContext.get(), m_aEnvTypeName.pData, 0 ); +} +//__________________________________________________________________________________________________ +inline ContextLayer::~ContextLayer() + SAL_THROW(()) +{ + ::uno_setCurrentContext( m_xPreviousContext.get(), m_aEnvTypeName.pData, 0 ); +} + +} +} +} +} + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |