/************************************************************************* * * $RCSfile: OConnectionPointHelper.cxx,v $ * * $Revision: 1.2 $ * * last change: $Author: hr $ $Date: 2001-09-27 13:42:25 $ * * 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): _______________________________________ * * ************************************************************************/ //______________________________________________________________________________________________________________ // my own include //______________________________________________________________________________________________________________ #ifndef _OCONNECTIONPOINTHELPER_HXX #include "OConnectionPointHelper.hxx" #endif //______________________________________________________________________________________________________________ // includes of other projects //______________________________________________________________________________________________________________ //______________________________________________________________________________________________________________ // include of my own project //______________________________________________________________________________________________________________ #ifndef _OCONNECTIONPOINTCONTAINERHELPER_HXX #include "OConnectionPointContainerHelper.hxx" #endif //______________________________________________________________________________________________________________ // namespaces //______________________________________________________________________________________________________________ using namespace ::rtl ; using namespace ::osl ; using namespace ::cppu ; using namespace ::com::sun::star::uno ; using namespace ::com::sun::star::lang ; namespace unocontrols{ //______________________________________________________________________________________________________________ // construct/destruct //______________________________________________________________________________________________________________ OConnectionPointHelper::OConnectionPointHelper( Mutex& aMutex , OConnectionPointContainerHelper* pContainerImplementation , UNO3_TYPE aType ) : m_aSharedMutex ( aMutex ) , m_oContainerWeakReference ( pContainerImplementation ) , m_pContainerImplementation ( pContainerImplementation ) , m_aInterfaceType ( aType ) { } OConnectionPointHelper::~OConnectionPointHelper() { } //____________________________________________________________________________________________________________ // XInterface //____________________________________________________________________________________________________________ Any SAL_CALL OConnectionPointHelper::queryInterface( const Type& aType ) throw( RuntimeException ) { // Attention: // Don't use mutex or guard in this method!!! Is a method of XInterface. // Ask for my own supported interfaces ... Any aReturn ( ::cppu::queryInterface( aType , static_cast< XConnectionPoint* > ( this ) ) ); // If searched interface not supported by this class ... if ( aReturn.hasValue() == sal_False ) { // ... ask baseclasses. aReturn = OWeakObject::queryInterface( aType ); } return aReturn ; } //____________________________________________________________________________________________________________ // XInterface //____________________________________________________________________________________________________________ void SAL_CALL OConnectionPointHelper::acquire() throw() { // Attention: // Don't use mutex or guard in this method!!! Is a method of XInterface. // Forward to baseclass OWeakObject::acquire(); } //____________________________________________________________________________________________________________ // XInterface //____________________________________________________________________________________________________________ void SAL_CALL OConnectionPointHelper::release() throw() { // Attention: // Don't use mutex or guard in this method!!! Is a method of XInterface. // Forward to baseclass OWeakObject::release(); } //______________________________________________________________________________________________________________ // XConnectionPoint //______________________________________________________________________________________________________________ Type SAL_CALL OConnectionPointHelper::getConnectionType() throw( RuntimeException ) { // Ready for multithreading MutexGuard aGuard( m_aSharedMutex ); // Set default return value, if method failed. if ( impl_LockContainer() == sal_False ) { // Container not exist! Its an runtime error. throw RuntimeException(); } // If container reference valid, return right type of supported interfaces of THIS connectionpoint. Type aReturnType = m_aInterfaceType ; // Don't forget this! impl_UnlockContainer(); return aReturnType; } //______________________________________________________________________________________________________________ // XConnectionPoint //______________________________________________________________________________________________________________ Reference< XConnectionPointContainer > SAL_CALL OConnectionPointHelper::getConnectionPointContainer() throw( RuntimeException ) { // Ready for multithreading MutexGuard aGuard( m_aSharedMutex ); // Convert weakreference to correct uno3-reference and return value. It can be NULL, if container destroyed! return Reference< XConnectionPointContainer >( m_oContainerWeakReference.get(), UNO_QUERY ); } //______________________________________________________________________________________________________________ // XConnectionPoint //______________________________________________________________________________________________________________ void SAL_CALL OConnectionPointHelper::advise( const Reference< XInterface >& xListener ) throw( ListenerExistException , InvalidListenerException , RuntimeException ) { // Ready for multithreading MutexGuard aGuard( m_aSharedMutex ); // If type of listener not the same for this special container ... Any aCheckType = xListener->queryInterface( m_aInterfaceType ); if ( aCheckType.hasValue() ) { // ... throw an exception. throw InvalidListenerException(); } // ListenerExistException is obsolete!? // Its the same container for XConnectionPointContainer and XConnectionPoint. But only here we must control, if a listener already exist!? // You can add a listener more then one time at XConnectionPointContainer, but here only one ... // Operation is permitted only, if reference to container is valid! if ( impl_LockContainer() == sal_False ) { // Container not exist! Its an runtime error. throw RuntimeException(); } // Forward it to OConnectionPointHelperContainer! m_pContainerImplementation->advise( m_aInterfaceType, xListener ); // Don't forget this! impl_UnlockContainer(); } //______________________________________________________________________________________________________________ // XConnectionPoint //______________________________________________________________________________________________________________ void SAL_CALL OConnectionPointHelper::unadvise( const Reference< XInterface >& xListener ) throw( RuntimeException ) { // Ready for multithreading MutexGuard aGuard( m_aSharedMutex ); // Operation is permitted only, if reference to container is valid! if ( impl_LockContainer() == sal_False ) { // Container not exist! Its an runtime error. throw RuntimeException(); } // Forward it to OConnectionPointHelperContainer! m_pContainerImplementation->unadvise( m_aInterfaceType, xListener ); // Don't forget this! impl_UnlockContainer(); } //______________________________________________________________________________________________________________ // XConnectionPoint //______________________________________________________________________________________________________________ Sequence< Reference< XInterface > > SAL_CALL OConnectionPointHelper::getConnections() throw( RuntimeException ) { // Ready for multithreading MutexGuard aGuard( m_aSharedMutex ); // Operation is permitted only, if reference to container is valid! if ( impl_LockContainer() == sal_False ) { // Container not exist! Its an runtime error. throw RuntimeException(); } // Set default return value, if method failed. Sequence< Reference< XInterface > > seqReturnConnections = Sequence< Reference< XInterface > >(); // Get reference to private member of OConnectionPointHelperContainer! OMultiTypeInterfaceContainerHelper& aSharedContainer = m_pContainerImplementation->impl_getMultiTypeContainer(); // Get pointer to specialized container which hold all interfaces of searched type. OInterfaceContainerHelper* pSpecialContainer = aSharedContainer.getContainer( m_aInterfaceType ); // Get elements of searched type, if somelse exist. if ( pSpecialContainer != NULL ) { seqReturnConnections = pSpecialContainer->getElements(); } // Don't forget this! impl_UnlockContainer(); return seqReturnConnections; } //______________________________________________________________________________________________________________ // private method //______________________________________________________________________________________________________________ sal_Bool OConnectionPointHelper::impl_LockContainer() { // Convert weakreference to hard uno3-reference and return state. // If this reference different from NULL, there exist a hard reference to container. Container-instance can't be destroyed. // Don't forget to "unlock" this reference! m_xLock = m_oContainerWeakReference.get(); return m_xLock.is(); } //______________________________________________________________________________________________________________ // private method //______________________________________________________________________________________________________________ void OConnectionPointHelper::impl_UnlockContainer() { // Free hard uno3-reference to container. // see also "impl_LockContainer()" m_xLock = Reference< XInterface >(); } } // namespace unocontrols