259 lines
8.2 KiB
C++
259 lines
8.2 KiB
C++
/*************************************************************************
|
|
*
|
|
* $RCSfile: component.cxx,v $
|
|
*
|
|
* $Revision: 1.7 $
|
|
*
|
|
* last change: $Author: hr $ $Date: 2001-09-26 15:09:45 $
|
|
*
|
|
* The Contents of this file are made available subject to the terms of
|
|
* either of the following licenses
|
|
*
|
|
* - GNU Lesser General Public License Version 2.1
|
|
* - Sun Industry Standards Source License Version 1.1
|
|
*
|
|
* Sun Microsystems Inc., October, 2000
|
|
*
|
|
* GNU Lesser General Public License Version 2.1
|
|
* =============================================
|
|
* Copyright 2000 by Sun Microsystems, Inc.
|
|
* 901 San Antonio Road, Palo Alto, CA 94303, USA
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License version 2.1, as published by the Free Software Foundation.
|
|
*
|
|
* This library 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 for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*
|
|
*
|
|
* Sun Industry Standards Source License Version 1.1
|
|
* =================================================
|
|
* The contents of this file are subject to the Sun Industry Standards
|
|
* Source License Version 1.1 (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.openoffice.org/license.html.
|
|
*
|
|
* Software provided under this License is provided on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
|
|
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
|
|
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
|
|
* See the License for the specific provisions governing your rights and
|
|
* obligations concerning the Software.
|
|
*
|
|
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
|
|
*
|
|
* Copyright: 2000 by Sun Microsystems, Inc.
|
|
*
|
|
* All Rights Reserved.
|
|
*
|
|
* Contributor(s): _______________________________________
|
|
*
|
|
*
|
|
************************************************************************/
|
|
|
|
#ifndef _OSL_DIAGNOSE_H_
|
|
#include <osl/diagnose.h>
|
|
#endif
|
|
#ifndef _CPPUHELPER_COMPONENT_HXX_
|
|
#include <cppuhelper/component.hxx>
|
|
#endif
|
|
#ifndef _CPPUHELPER_QUERYINTERFACE_HXX_
|
|
#include <cppuhelper/queryinterface.hxx>
|
|
#endif
|
|
#ifndef _CPPUHELPER_TYPEPROVIDER_HXX_
|
|
#include <cppuhelper/typeprovider.hxx>
|
|
#endif
|
|
|
|
using namespace osl;
|
|
using namespace com::sun::star;
|
|
using namespace com::sun::star::uno;
|
|
using namespace com::sun::star::lang;
|
|
|
|
namespace cppu
|
|
{
|
|
|
|
// ----------------------------------------------------
|
|
// class OComponentHelper
|
|
// ----------------------------------------------------
|
|
|
|
OComponentHelper::OComponentHelper( Mutex & rMutex ) SAL_THROW( () )
|
|
: rBHelper( rMutex )
|
|
{
|
|
}
|
|
OComponentHelper::~OComponentHelper() SAL_THROW( (RuntimeException) )
|
|
{
|
|
}
|
|
|
|
Any OComponentHelper::queryInterface( Type const & rType ) throw (RuntimeException)
|
|
{
|
|
return OWeakAggObject::queryInterface( rType );
|
|
}
|
|
Any OComponentHelper::queryAggregation( Type const & rType ) throw (RuntimeException)
|
|
{
|
|
if (rType == ::getCppuType( (Reference< lang::XComponent > const *)0 ))
|
|
{
|
|
void * p = static_cast< lang::XComponent * >( this );
|
|
return Any( &p, rType );
|
|
}
|
|
else if (rType == ::getCppuType( (Reference< lang::XTypeProvider > const *)0 ))
|
|
{
|
|
void * p = static_cast< lang::XTypeProvider * >( this );
|
|
return Any( &p, rType );
|
|
}
|
|
return OWeakAggObject::queryAggregation( rType );
|
|
}
|
|
void OComponentHelper::acquire() throw ()
|
|
{
|
|
OWeakAggObject::acquire();
|
|
}
|
|
|
|
void OComponentHelper::release() throw()
|
|
{
|
|
Reference<XInterface > x( xDelegator );
|
|
if (! x.is())
|
|
{
|
|
if (osl_decrementInterlockedCount( &m_refCount ) == 0)
|
|
{
|
|
if (! rBHelper.bDisposed)
|
|
{
|
|
Reference<XInterface > xHoldAlive( *this );
|
|
// First dispose
|
|
try
|
|
{
|
|
dispose();
|
|
}
|
|
catch(::com::sun::star::uno::Exception&)
|
|
{
|
|
// release should not throw exceptions
|
|
}
|
|
|
|
// only the alive ref holds the object
|
|
OSL_ASSERT( m_refCount == 1 );
|
|
// destroy the object if xHoldAlive decrement the refcount to 0
|
|
return;
|
|
}
|
|
}
|
|
// restore the reference count
|
|
osl_incrementInterlockedCount( &m_refCount );
|
|
}
|
|
OWeakAggObject::release();
|
|
}
|
|
|
|
Sequence< Type > OComponentHelper::getTypes() throw (RuntimeException)
|
|
{
|
|
static OTypeCollection * s_pTypes = 0;
|
|
if (! s_pTypes)
|
|
{
|
|
MutexGuard aGuard( Mutex::getGlobalMutex() );
|
|
if (! s_pTypes)
|
|
{
|
|
static OTypeCollection s_aTypes(
|
|
::getCppuType( (const Reference< lang::XComponent > *)0 ),
|
|
::getCppuType( (const Reference< lang::XTypeProvider > *)0 ),
|
|
::getCppuType( (const Reference< XAggregation > *)0 ),
|
|
::getCppuType( (const Reference< XWeak > *)0 ) );
|
|
s_pTypes = &s_aTypes;
|
|
}
|
|
}
|
|
return s_pTypes->getTypes();
|
|
}
|
|
|
|
// XComponent
|
|
void OComponentHelper::disposing()
|
|
{
|
|
}
|
|
|
|
// XComponent
|
|
void OComponentHelper::dispose()
|
|
throw(::com::sun::star::uno::RuntimeException)
|
|
{
|
|
// An frequently programming error is to release the last
|
|
// reference to this object in the disposing message.
|
|
// Make it rubust, hold a self Reference.
|
|
Reference<XComponent > xSelf( this );
|
|
|
|
// Guard dispose against multible threading
|
|
// Remark: It is an error to call dispose more than once
|
|
sal_Bool bDoDispose = sal_False;
|
|
{
|
|
MutexGuard aGuard( rBHelper.rMutex );
|
|
if( !rBHelper.bDisposed && !rBHelper.bInDispose )
|
|
{
|
|
// only one call go into this section
|
|
rBHelper.bInDispose = sal_True;
|
|
bDoDispose = sal_True;
|
|
}
|
|
}
|
|
|
|
// Do not hold the mutex because we are broadcasting
|
|
if( bDoDispose )
|
|
{
|
|
// Create an event with this as sender
|
|
try
|
|
{
|
|
Reference<XInterface > xSource( Reference<XInterface >::query( (XComponent *)this ) );
|
|
EventObject aEvt;
|
|
aEvt.Source = xSource;
|
|
// inform all listeners to release this object
|
|
// The listener container are automaticly cleared
|
|
rBHelper.aLC.disposeAndClear( aEvt );
|
|
// notify subclasses to do their dispose
|
|
disposing();
|
|
}
|
|
catch(::com::sun::star::uno::Exception& e)
|
|
{
|
|
// catch exception and throw again but signal that
|
|
// the object was disposed. Dispose should be called
|
|
// only once.
|
|
rBHelper.bDisposed = sal_True;
|
|
rBHelper.bInDispose = sal_False;
|
|
throw e;
|
|
}
|
|
|
|
// the values bDispose and bInDisposing must set in this order.
|
|
// No multithread call overcome the "!rBHelper.bDisposed && !rBHelper.bInDispose" guard.
|
|
rBHelper.bDisposed = sal_True;
|
|
rBHelper.bInDispose = sal_False;
|
|
}
|
|
else
|
|
{
|
|
// in a multithreaded environment, it can't be avoided, that dispose is called twice.
|
|
// However this condition is traced, because it MAY indicate an error.
|
|
OSL_TRACE( "OComponentHelper::dispose() - dispose called twice" );
|
|
}
|
|
}
|
|
|
|
// XComponent
|
|
void OComponentHelper::addEventListener(
|
|
const Reference<XEventListener > & rxListener )
|
|
throw(::com::sun::star::uno::RuntimeException)
|
|
{
|
|
if (rBHelper.bDisposed || rBHelper.bInDispose)
|
|
{
|
|
Reference< XInterface > x( (XComponent *)this, UNO_QUERY );
|
|
rxListener->disposing( EventObject( x ) );
|
|
}
|
|
else
|
|
{
|
|
rBHelper.addListener( ::getCppuType( &rxListener ) , rxListener );
|
|
}
|
|
}
|
|
|
|
// XComponent
|
|
void OComponentHelper::removeEventListener(
|
|
const Reference<XEventListener > & rxListener )
|
|
throw(::com::sun::star::uno::RuntimeException)
|
|
{
|
|
rBHelper.removeListener( ::getCppuType( &rxListener ) , rxListener );
|
|
}
|
|
|
|
}
|
|
|