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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#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.
@internal
*/
::rtl::OUString m_aEnvTypeName;
/** previous context
@internal
*/
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
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