7470cc532f
The service is deprecated, but we still have a handful of in-tree users, and converting it lets me thread XComponentContext through a bunch of classes. Change-Id: Iffdfe537ada6b9e4a89f9b3c8dd82ca85f4bfaba
260 lines
11 KiB
C++
260 lines
11 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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#include <comphelper/proxyaggregation.hxx>
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#include <com/sun/star/reflection/ProxyFactory.hpp>
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//.............................................................................
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namespace comphelper
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{
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//.............................................................................
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using namespace ::com::sun::star::uno;
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using namespace ::com::sun::star::lang;
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using namespace ::com::sun::star::reflection;
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//=========================================================================
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//= OProxyAggregation
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//=========================================================================
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//-------------------------------------------------------------------------
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OProxyAggregation::OProxyAggregation( const Reference< XComponentContext >& _rxContext )
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:m_xContext( _rxContext )
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{
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}
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//-------------------------------------------------------------------------
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void OProxyAggregation::baseAggregateProxyFor( const Reference< XInterface >& _rxComponent, oslInterlockedCount& _rRefCount,
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::cppu::OWeakObject& _rDelegator )
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{
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// first a factory for the proxy
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Reference< XProxyFactory > xFactory = ProxyFactory::create( m_xContext );
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// then the proxy itself
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{ // i36686 OJ: achieve the desctruction of the tempoary -> otherwise it leads to _rRefCount -= 2
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m_xProxyAggregate = xFactory->createProxy( _rxComponent );
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}
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if ( m_xProxyAggregate.is() )
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m_xProxyAggregate->queryAggregation( ::getCppuType( &m_xProxyTypeAccess ) ) >>= m_xProxyTypeAccess;
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// aggregate the proxy
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osl_atomic_increment( &_rRefCount );
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if ( m_xProxyAggregate.is() )
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{
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// At this point in time, the proxy has a ref count of exactly two - in m_xControlContextProxy,
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// and in m_xProxyTypeAccess.
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// Remember to _not_ reset these members unless the delegator of the proxy has been reset, too!
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m_xProxyAggregate->setDelegator( _rDelegator );
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}
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osl_atomic_decrement( &_rRefCount );
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}
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//-------------------------------------------------------------------------
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Any SAL_CALL OProxyAggregation::queryAggregation( const Type& _rType ) throw (RuntimeException)
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{
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return m_xProxyAggregate.is() ? m_xProxyAggregate->queryAggregation( _rType ) : Any();
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}
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//-------------------------------------------------------------------------
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Sequence< Type > SAL_CALL OProxyAggregation::getTypes( ) throw (RuntimeException)
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{
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Sequence< Type > aTypes;
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if ( m_xProxyAggregate.is() )
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{
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if ( m_xProxyTypeAccess.is() )
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aTypes = m_xProxyTypeAccess->getTypes();
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}
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return aTypes;
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}
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//-------------------------------------------------------------------------
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OProxyAggregation::~OProxyAggregation()
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{
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if ( m_xProxyAggregate.is() )
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m_xProxyAggregate->setDelegator( NULL );
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m_xProxyAggregate.clear();
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m_xProxyTypeAccess.clear();
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// this should remove the _two_only_ "real" references (means not delegated to
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// ourself) to this proxy, and thus delete it
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}
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//=========================================================================
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//= OComponentProxyAggregationHelper
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//=========================================================================
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//-------------------------------------------------------------------------
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OComponentProxyAggregationHelper::OComponentProxyAggregationHelper( const Reference< XComponentContext >& _rxContext,
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::cppu::OBroadcastHelper& _rBHelper )
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:OProxyAggregation( _rxContext )
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,m_rBHelper( _rBHelper )
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{
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OSL_ENSURE( _rxContext.is(), "OComponentProxyAggregationHelper::OComponentProxyAggregationHelper: invalid arguments!" );
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}
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//-------------------------------------------------------------------------
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void OComponentProxyAggregationHelper::componentAggregateProxyFor(
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const Reference< XComponent >& _rxComponent, oslInterlockedCount& _rRefCount,
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::cppu::OWeakObject& _rDelegator )
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{
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OSL_ENSURE( _rxComponent.is(), "OComponentProxyAggregationHelper::componentAggregateProxyFor: invalid inner component!" );
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m_xInner = _rxComponent;
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// aggregate a proxy for the object
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baseAggregateProxyFor( m_xInner.get(), _rRefCount, _rDelegator );
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// add as event listener to the inner context, because we want to be notified of disposals
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osl_atomic_increment( &_rRefCount );
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{
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if ( m_xInner.is() )
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m_xInner->addEventListener( this );
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}
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osl_atomic_decrement( &_rRefCount );
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}
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//-------------------------------------------------------------------------
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Any SAL_CALL OComponentProxyAggregationHelper::queryInterface( const Type& _rType ) throw (RuntimeException)
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{
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Any aReturn( BASE::queryInterface( _rType ) );
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if ( !aReturn.hasValue() )
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aReturn = OProxyAggregation::queryAggregation( _rType );
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return aReturn;
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}
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//-------------------------------------------------------------------------
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IMPLEMENT_FORWARD_XTYPEPROVIDER2( OComponentProxyAggregationHelper, BASE, OProxyAggregation )
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//-------------------------------------------------------------------------
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OComponentProxyAggregationHelper::~OComponentProxyAggregationHelper( )
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{
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OSL_ENSURE( m_rBHelper.bDisposed, "OComponentProxyAggregationHelper::~OComponentProxyAggregationHelper: you should dispose your derived class in the dtor, if necessary!" );
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// if this asserts, add the following to your derived class dtor:
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//
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// if ( !m_rBHelper.bDisposed )
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// {
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// acquire(); // to prevent duplicate dtor calls
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// dispose();
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// }
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m_xInner.clear();
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}
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//-------------------------------------------------------------------------
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void SAL_CALL OComponentProxyAggregationHelper::disposing( const EventObject& _rSource ) throw (RuntimeException)
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{
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if ( _rSource.Source == m_xInner )
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{ // it's our inner context which is dying -> dispose ourself
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if ( !m_rBHelper.bDisposed && !m_rBHelper.bInDispose )
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{ // (if necessary only, of course)
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dispose();
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}
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}
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}
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//-------------------------------------------------------------------------
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void SAL_CALL OComponentProxyAggregationHelper::dispose() throw( RuntimeException )
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{
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::osl::MutexGuard aGuard( m_rBHelper.rMutex );
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// dispose our inner context
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// before we do this, remove ourself as listener - else in disposing( EventObject ), we
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// would dispose ourself a second time
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Reference< XComponent > xComp( m_xInner, UNO_QUERY );
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if ( xComp.is() )
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{
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xComp->removeEventListener( this );
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xComp->dispose();
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xComp.clear();
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}
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}
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//=========================================================================
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//= OComponentProxyAggregation
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//=========================================================================
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//-------------------------------------------------------------------------
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OComponentProxyAggregation::OComponentProxyAggregation( const Reference< XComponentContext >& _rxContext,
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const Reference< XComponent >& _rxComponent )
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:OComponentProxyAggregation_CBase( m_aMutex )
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,OComponentProxyAggregationHelper( _rxContext, rBHelper )
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{
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OSL_ENSURE( _rxComponent.is(), "OComponentProxyAggregation::OComponentProxyAggregation: accessible is no XComponent!" );
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if ( _rxComponent.is() )
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componentAggregateProxyFor( _rxComponent, m_refCount, *this );
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}
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//-------------------------------------------------------------------------
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OComponentProxyAggregation::~OComponentProxyAggregation()
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{
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implEnsureDisposeInDtor( );
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}
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//-------------------------------------------------------------------------
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IMPLEMENT_FORWARD_XINTERFACE2( OComponentProxyAggregation, OComponentProxyAggregation_CBase, OComponentProxyAggregationHelper )
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//-------------------------------------------------------------------------
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IMPLEMENT_GET_IMPLEMENTATION_ID( OComponentProxyAggregation )
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//-------------------------------------------------------------------------
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Sequence< Type > SAL_CALL OComponentProxyAggregation::getTypes( ) throw (RuntimeException)
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{
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Sequence< Type > aTypes( OComponentProxyAggregationHelper::getTypes() );
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// append XComponent, coming from OComponentProxyAggregation_CBase
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sal_Int32 nLen = aTypes.getLength();
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aTypes.realloc( nLen + 1 );
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aTypes[ nLen ] = ::getCppuType( static_cast< Reference< XComponent >* >( NULL ) );
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return aTypes;
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}
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//-------------------------------------------------------------------------
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void OComponentProxyAggregation::implEnsureDisposeInDtor( )
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{
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if ( !rBHelper.bDisposed )
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{
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acquire(); // to prevent duplicate dtor calls
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dispose();
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}
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}
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//--------------------------------------------------------------------
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void SAL_CALL OComponentProxyAggregation::disposing( const EventObject& _rSource ) throw (RuntimeException)
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{
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// simly disambiguate - this is necessary for MSVC to distinguish
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// "disposing( EventObject )" from "disposing()"
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OComponentProxyAggregationHelper::disposing( _rSource );
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}
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//--------------------------------------------------------------------
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void SAL_CALL OComponentProxyAggregation::disposing() throw (RuntimeException)
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{
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// call the dispose-functionality of the base, which will dispose our aggregated component
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OComponentProxyAggregationHelper::dispose();
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}
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//--------------------------------------------------------------------
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void SAL_CALL OComponentProxyAggregation::dispose() throw( RuntimeException )
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{
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// simply disambiguate
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OComponentProxyAggregation_CBase::dispose();
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}
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//.............................................................................
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} // namespace comphelper
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//.............................................................................
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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