From 940b4d1848e8c70ab7642901a68594e8016caffc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 18:51:28 +0200 Subject: Adding upstream version 1:7.0.4. Signed-off-by: Daniel Baumann --- .../source/controls/OConnectionPointHelper.cxx | 227 +++++++++++++++++++++ 1 file changed, 227 insertions(+) create mode 100644 UnoControls/source/controls/OConnectionPointHelper.cxx (limited to 'UnoControls/source/controls/OConnectionPointHelper.cxx') diff --git a/UnoControls/source/controls/OConnectionPointHelper.cxx b/UnoControls/source/controls/OConnectionPointHelper.cxx new file mode 100644 index 000000000..f2c99421d --- /dev/null +++ b/UnoControls/source/controls/OConnectionPointHelper.cxx @@ -0,0 +1,227 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 . + */ + +#include + +#include + +#include +#include + +// namespaces + +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 , + Type const & aType +) : m_aSharedMutex ( aMutex ) + , m_oContainerWeakReference ( pContainerImplementation ) + , m_pContainerImplementation ( pContainerImplementation ) + , m_aInterfaceType ( aType ) +{ +} + +OConnectionPointHelper::~OConnectionPointHelper() +{ +} + +// XInterface + +Any SAL_CALL OConnectionPointHelper::queryInterface( const Type& aType ) +{ + // 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() ) + { + // ... 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() +{ + // Ready for multithreading + MutexGuard aGuard( m_aSharedMutex ); + + // Set default return value, if method failed. + if ( !impl_LockContainer() ) + { + throw RuntimeException("Container does not exist!"); + } + + // 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() +{ + // 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 ) +{ + // 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!? + // It's the same container for XConnectionPointContainer and XConnectionPoint. But only here we must control, if a listener already exist!? + // You can add a listener more than one time at XConnectionPointContainer, but here only one ... + + // Operation is permitted only, if reference to container is valid! + if ( !impl_LockContainer() ) + { + throw RuntimeException("Container does not exist!"); + } + // 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 ) +{ + // Ready for multithreading + MutexGuard aGuard( m_aSharedMutex ); + // Operation is permitted only, if reference to container is valid! + if ( !impl_LockContainer() ) + { + throw RuntimeException("Container does not exist!"); + + } + // Forward it to OConnectionPointHelperContainer! + m_pContainerImplementation->unadvise( m_aInterfaceType, xListener ); + // Don't forget this! + impl_UnlockContainer(); +} + +// XConnectionPoint + +Sequence< Reference< XInterface > > SAL_CALL OConnectionPointHelper::getConnections() +{ + // Ready for multithreading + MutexGuard aGuard( m_aSharedMutex ); + // Operation is permitted only, if reference to container is valid! + if ( !impl_LockContainer() ) + { + throw RuntimeException("Container does not exist!"); + } + // Set default return value, if method failed. + Sequence< Reference< XInterface > > seqReturnConnections; + // 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 some else exist. + if ( pSpecialContainer != nullptr ) + { + seqReturnConnections = pSpecialContainer->getElements(); + } + // Don't forget this! + impl_UnlockContainer(); + + return seqReturnConnections; +} + +// private method + +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.clear(); +} + +} // namespace unocontrols + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3