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Diffstat (limited to 'UnoControls/source/controls/OConnectionPointHelper.cxx')
| -rw-r--r-- | UnoControls/source/controls/OConnectionPointHelper.cxx | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/UnoControls/source/controls/OConnectionPointHelper.cxx b/UnoControls/source/controls/OConnectionPointHelper.cxx new file mode 100644 index 000000000000..24b08f6a4937 --- /dev/null +++ b/UnoControls/source/controls/OConnectionPointHelper.cxx @@ -0,0 +1,271 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * 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. + * + ************************************************************************/ + +//______________________________________________________________________________________________________________ +// my own include +//______________________________________________________________________________________________________________ + +#include "OConnectionPointHelper.hxx" + +//______________________________________________________________________________________________________________ +// includes of other projects +//______________________________________________________________________________________________________________ + +//______________________________________________________________________________________________________________ +// include of my own project +//______________________________________________________________________________________________________________ +#include "OConnectionPointContainerHelper.hxx" + +//______________________________________________________________________________________________________________ +// 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 |