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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: EnvGuards.hxx,v $
* $Revision: 1.3 $
*
* 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 INCLUDED_cppu_EnvGuards_hxx
#define INCLUDED_cppu_EnvGuards_hxx
#include "uno/environment.hxx"
#include "uno/mapping.hxx"
namespace cssuno = com::sun::star::uno;
namespace cppu
{
/** Environment Guard
The provided Environment becomes entered in the constructor and left
in the destructor.
(http://wiki.services.openoffice.org/wiki/Uno/Cpp/Spec/Environment_Guard)
@since UDK 3.2.7
*/
class EnvGuard
{
cssuno::Environment m_env;
public:
explicit EnvGuard(cssuno::Environment const & env)
{
if (env.is())
{
m_env = cssuno::Environment::getCurrent();
env.enter();
}
}
~EnvGuard()
{
m_env.enter();
}
/** Checks if the associated environment is non empty.
@return 0 == empty, 1 == non empty
*/
sal_Bool SAL_CALL is() const SAL_THROW( () )
{
return m_env.is();
}
/** Leaves the associated environment and clears
the reference.
*/
void clear()
{
if (m_env.is())
{
m_env.enter();
m_env.clear();
}
}
};
/** Environment Anti-Guard
Any entered Environment becomes left in the constructor and re-entered
in the destructor.
(http://wiki.services.openoffice.org/wiki/Uno/Cpp/Spec/Environment_AntiGuard)
@since UDK 3.2.7
*/
class AntiEnvGuard
{
cssuno::Environment m_env;
public:
explicit AntiEnvGuard()
: m_env(cssuno::Environment::getCurrent())
{
uno_Environment_enter(NULL);
}
~AntiEnvGuard()
{
m_env.enter();
}
};
}
#endif
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