310 lines
13 KiB
C++
310 lines
13 KiB
C++
/*************************************************************************
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*
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* $RCSfile: OConnectionPointHelper.cxx,v $
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*
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* $Revision: 1.1.1.1 $
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*
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* last change: $Author: hr $ $Date: 2000-09-18 16:11:17 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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//______________________________________________________________________________________________________________
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// my own include
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//______________________________________________________________________________________________________________
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#ifndef _OCONNECTIONPOINTHELPER_HXX
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#include "OConnectionPointHelper.hxx"
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#endif
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//______________________________________________________________________________________________________________
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// includes of other projects
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//______________________________________________________________________________________________________________
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//______________________________________________________________________________________________________________
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// include of my own project
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//______________________________________________________________________________________________________________
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#ifndef _OCONNECTIONPOINTCONTAINERHELPER_HXX
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#include "OConnectionPointContainerHelper.hxx"
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#endif
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//______________________________________________________________________________________________________________
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// namespaces
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//______________________________________________________________________________________________________________
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using namespace ::rtl ;
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using namespace ::osl ;
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using namespace ::cppu ;
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using namespace ::com::sun::star::uno ;
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using namespace ::com::sun::star::lang ;
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namespace unocontrols{
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//______________________________________________________________________________________________________________
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// construct/destruct
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//______________________________________________________________________________________________________________
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OConnectionPointHelper::OConnectionPointHelper( Mutex& aMutex ,
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OConnectionPointContainerHelper* pContainerImplementation ,
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UNO3_TYPE aType )
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: m_aSharedMutex ( aMutex )
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, m_oContainerWeakReference ( pContainerImplementation )
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, m_pContainerImplementation ( pContainerImplementation )
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, m_aInterfaceType ( aType )
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{
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}
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OConnectionPointHelper::~OConnectionPointHelper()
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{
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}
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//____________________________________________________________________________________________________________
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// XInterface
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//____________________________________________________________________________________________________________
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Any SAL_CALL OConnectionPointHelper::queryInterface( const Type& aType ) throw( RuntimeException )
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{
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// Attention:
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// Don't use mutex or guard in this method!!! Is a method of XInterface.
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// Ask for my own supported interfaces ...
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Any aReturn ( ::cppu::queryInterface( aType ,
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static_cast< XConnectionPoint* > ( this )
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)
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);
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// If searched interface not supported by this class ...
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if ( aReturn.hasValue() == sal_False )
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{
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// ... ask baseclasses.
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aReturn = OWeakObject::queryInterface( aType );
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}
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return aReturn ;
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}
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//____________________________________________________________________________________________________________
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// XInterface
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//____________________________________________________________________________________________________________
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void SAL_CALL OConnectionPointHelper::acquire() throw( RuntimeException )
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{
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// Attention:
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// Don't use mutex or guard in this method!!! Is a method of XInterface.
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// Forward to baseclass
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OWeakObject::acquire();
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}
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//____________________________________________________________________________________________________________
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// XInterface
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//____________________________________________________________________________________________________________
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void SAL_CALL OConnectionPointHelper::release() throw( RuntimeException )
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{
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// Attention:
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// Don't use mutex or guard in this method!!! Is a method of XInterface.
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// Forward to baseclass
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OWeakObject::release();
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}
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//______________________________________________________________________________________________________________
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// XConnectionPoint
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//______________________________________________________________________________________________________________
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Type SAL_CALL OConnectionPointHelper::getConnectionType() throw( RuntimeException )
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{
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// Ready for multithreading
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MutexGuard aGuard( m_aSharedMutex );
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// Set default return value, if method failed.
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if ( impl_LockContainer() == sal_False )
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{
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// Container not exist! Its an runtime error.
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throw RuntimeException();
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}
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// If container reference valid, return right type of supported interfaces of THIS connectionpoint.
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Type aReturnType = m_aInterfaceType ;
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// Don't forget this!
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impl_UnlockContainer();
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return aReturnType;
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}
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//______________________________________________________________________________________________________________
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// XConnectionPoint
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//______________________________________________________________________________________________________________
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Reference< XConnectionPointContainer > SAL_CALL OConnectionPointHelper::getConnectionPointContainer() throw( RuntimeException )
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{
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// Ready for multithreading
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MutexGuard aGuard( m_aSharedMutex );
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// Convert weakreference to correct uno3-reference and return value. It can be NULL, if container destroyed!
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return Reference< XConnectionPointContainer >( m_oContainerWeakReference.get(), UNO_QUERY );
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}
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//______________________________________________________________________________________________________________
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// XConnectionPoint
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//______________________________________________________________________________________________________________
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void SAL_CALL OConnectionPointHelper::advise( const Reference< XInterface >& xListener ) throw( ListenerExistException ,
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InvalidListenerException ,
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RuntimeException )
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{
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// Ready for multithreading
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MutexGuard aGuard( m_aSharedMutex );
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// If type of listener not the same for this special container ...
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Any aCheckType = xListener->queryInterface( m_aInterfaceType );
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if ( aCheckType.hasValue() )
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{
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// ... throw an exception.
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throw InvalidListenerException();
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}
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// ListenerExistException is obsolete!?
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// Its the same container for XConnectionPointContainer and XConnectionPoint. But only here we must control, if a listener already exist!?
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// You can add a listener more then one time at XConnectionPointContainer, but here only one ...
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// Operation is permitted only, if reference to container is valid!
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if ( impl_LockContainer() == sal_False )
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{
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// Container not exist! Its an runtime error.
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throw RuntimeException();
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}
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// Forward it to OConnectionPointHelperContainer!
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m_pContainerImplementation->advise( m_aInterfaceType, xListener );
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// Don't forget this!
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impl_UnlockContainer();
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}
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//______________________________________________________________________________________________________________
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// XConnectionPoint
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//______________________________________________________________________________________________________________
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void SAL_CALL OConnectionPointHelper::unadvise( const Reference< XInterface >& xListener ) throw( RuntimeException )
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{
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// Ready for multithreading
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MutexGuard aGuard( m_aSharedMutex );
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// Operation is permitted only, if reference to container is valid!
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if ( impl_LockContainer() == sal_False )
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{
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// Container not exist! Its an runtime error.
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throw RuntimeException();
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}
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// Forward it to OConnectionPointHelperContainer!
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m_pContainerImplementation->unadvise( m_aInterfaceType, xListener );
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// Don't forget this!
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impl_UnlockContainer();
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}
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//______________________________________________________________________________________________________________
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// XConnectionPoint
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//______________________________________________________________________________________________________________
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Sequence< Reference< XInterface > > SAL_CALL OConnectionPointHelper::getConnections() throw( RuntimeException )
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{
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// Ready for multithreading
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MutexGuard aGuard( m_aSharedMutex );
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// Operation is permitted only, if reference to container is valid!
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if ( impl_LockContainer() == sal_False )
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{
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// Container not exist! Its an runtime error.
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throw RuntimeException();
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}
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// Set default return value, if method failed.
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Sequence< Reference< XInterface > > seqReturnConnections = Sequence< Reference< XInterface > >();
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// Get reference to private member of OConnectionPointHelperContainer!
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OMultiTypeInterfaceContainerHelper& aSharedContainer = m_pContainerImplementation->impl_getMultiTypeContainer();
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// Get pointer to specialized container which hold all interfaces of searched type.
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OInterfaceContainerHelper* pSpecialContainer = aSharedContainer.getContainer( m_aInterfaceType );
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// Get elements of searched type, if somelse exist.
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if ( pSpecialContainer != NULL )
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{
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seqReturnConnections = pSpecialContainer->getElements();
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}
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// Don't forget this!
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impl_UnlockContainer();
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return seqReturnConnections;
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}
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//______________________________________________________________________________________________________________
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// private method
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//______________________________________________________________________________________________________________
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sal_Bool OConnectionPointHelper::impl_LockContainer()
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{
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// Convert weakreference to hard uno3-reference and return state.
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// If this reference different from NULL, there exist a hard reference to container. Container-instance can't be destroyed.
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// Don't forget to "unlock" this reference!
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m_xLock = m_oContainerWeakReference.get();
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return m_xLock.is();
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}
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//______________________________________________________________________________________________________________
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// private method
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//______________________________________________________________________________________________________________
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void OConnectionPointHelper::impl_UnlockContainer()
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{
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// Free hard uno3-reference to container.
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// see also "impl_LockContainer()"
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m_xLock = Reference< XInterface >();
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}
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} // namespace unocontrols
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