114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_UNO_CURRENT_CONTEXT_HXX
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#define INCLUDED_UNO_CURRENT_CONTEXT_HXX
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#include <uno/current_context.h>
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#include <uno/lbnames.h>
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#include <com/sun/star/uno/XCurrentContext.hpp>
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namespace com
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{
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namespace sun
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{
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namespace star
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{
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namespace uno
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{
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/** Getting the current context.
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@attention
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Don't spread the returned interface around to other threads. Every thread has its own
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current context.
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@return current context or null ref, if none is set
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*/
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inline Reference< XCurrentContext > SAL_CALL getCurrentContext()
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{
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Reference< XCurrentContext > xRet;
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::rtl::OUString aEnvTypeName( CPPU_CURRENT_LANGUAGE_BINDING_NAME );
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::uno_getCurrentContext( (void **)&xRet, aEnvTypeName.pData, 0 );
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return xRet;
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}
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/** Setting the current context.
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@param xContext current context to be set
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@return true, if context has been successfully set
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*/
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inline bool SAL_CALL setCurrentContext(
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Reference< XCurrentContext > const & xContext )
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{
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::rtl::OUString aEnvTypeName( CPPU_CURRENT_LANGUAGE_BINDING_NAME );
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return (::uno_setCurrentContext( xContext.get(), aEnvTypeName.pData, 0 ) != sal_False);
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}
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/** Objects of this class are used for applying a current context until they are destructed, i.e.
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the ctor of this class saves the previous and sets the given context while the dtor restores
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the previous one upon destruction.
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*/
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class ContextLayer
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{
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/** this C++ environment type name.
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*/
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::rtl::OUString m_aEnvTypeName;
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/** previous context
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*/
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Reference< XCurrentContext > m_xPreviousContext;
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public:
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/** Constructor: Saves the previous context and sets the new (given) one.
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@param xNewContext new context to be set
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*/
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inline ContextLayer(
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Reference< XCurrentContext > const & xNewContext = Reference< XCurrentContext >() );
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/** Destructor: restores the previous context.
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*/
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inline ~ContextLayer();
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/** Gets the previously set context.
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@return the previously set context
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*/
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inline Reference< XCurrentContext > SAL_CALL getPreviousContext() const
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{ return m_xPreviousContext; }
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};
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inline ContextLayer::ContextLayer( Reference< XCurrentContext > const & xNewContext )
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: m_aEnvTypeName( CPPU_CURRENT_LANGUAGE_BINDING_NAME )
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{
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::uno_getCurrentContext( (void **)&m_xPreviousContext, m_aEnvTypeName.pData, 0 );
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::uno_setCurrentContext( xNewContext.get(), m_aEnvTypeName.pData, 0 );
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}
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inline ContextLayer::~ContextLayer()
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{
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::uno_setCurrentContext( m_xPreviousContext.get(), m_aEnvTypeName.pData, 0 );
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}
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}
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}
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}
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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