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+/* -*- 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 <comphelper/interfacecontainer2.hxx>
+#include <comphelper/multicontainer2.hxx>
+
+#include <o3tl/safeint.hxx>
+#include <osl/diagnose.h>
+#include <osl/mutex.hxx>
+
+#include <memory>
+
+#include <com/sun/star/lang/XEventListener.hpp>
+
+
+using namespace osl;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::lang;
+
+namespace comphelper
+{
+
+OInterfaceIteratorHelper2::OInterfaceIteratorHelper2( OInterfaceContainerHelper2 & rCont_ )
+ : rCont( rCont_ )
+{
+ MutexGuard aGuard( rCont.rMutex );
+ if( rCont.bInUse )
+ // worst case, two iterators at the same time
+ rCont.copyAndResetInUse();
+ bIsList = rCont_.bIsList;
+ aData = rCont_.aData;
+ if( bIsList )
+ {
+ rCont.bInUse = true;
+ nRemain = aData.pAsVector->size();
+ }
+ else if( aData.pAsInterface )
+ {
+ aData.pAsInterface->acquire();
+ nRemain = 1;
+ }
+ else
+ nRemain = 0;
+}
+
+OInterfaceIteratorHelper2::~OInterfaceIteratorHelper2()
+{
+ bool bShared;
+ {
+ MutexGuard aGuard( rCont.rMutex );
+ // bResetInUse protect the iterator against recursion
+ bShared = aData.pAsVector == rCont.aData.pAsVector && rCont.bIsList;
+ if( bShared )
+ {
+ OSL_ENSURE( rCont.bInUse, "OInterfaceContainerHelper2 must be in use" );
+ rCont.bInUse = false;
+ }
+ }
+
+ if( !bShared )
+ {
+ if( bIsList )
+ // Sequence owned by the iterator
+ delete aData.pAsVector;
+ else if( aData.pAsInterface )
+ // Interface is acquired by the iterator
+ aData.pAsInterface->release();
+ }
+}
+
+XInterface * OInterfaceIteratorHelper2::next()
+{
+ if( nRemain )
+ {
+ nRemain--;
+ if( bIsList )
+ return (*aData.pAsVector)[nRemain].get();
+ else if( aData.pAsInterface )
+ return aData.pAsInterface;
+ }
+ // exception
+ return nullptr;
+}
+
+void OInterfaceIteratorHelper2::remove()
+{
+ if( bIsList )
+ {
+ OSL_ASSERT( nRemain >= 0 &&
+ o3tl::make_unsigned(nRemain) < aData.pAsVector->size() );
+ rCont.removeInterface( (*aData.pAsVector)[nRemain] );
+ }
+ else
+ {
+ OSL_ASSERT( 0 == nRemain );
+ rCont.removeInterface( aData.pAsInterface );
+ }
+}
+
+OInterfaceContainerHelper2::OInterfaceContainerHelper2( Mutex & rMutex_ )
+ : rMutex( rMutex_ )
+ , bInUse( false )
+ , bIsList( false )
+{
+}
+
+OInterfaceContainerHelper2::~OInterfaceContainerHelper2()
+{
+ OSL_ENSURE( !bInUse, "~OInterfaceContainerHelper2 but is in use" );
+ if( bIsList )
+ delete aData.pAsVector;
+ else if( aData.pAsInterface )
+ aData.pAsInterface->release();
+}
+
+sal_Int32 OInterfaceContainerHelper2::getLength() const
+{
+ MutexGuard aGuard( rMutex );
+ if( bIsList )
+ return aData.pAsVector->size();
+ else if( aData.pAsInterface )
+ return 1;
+ return 0;
+}
+
+std::vector< Reference<XInterface> > OInterfaceContainerHelper2::getElements() const
+{
+ std::vector< Reference<XInterface> > rVec;
+ MutexGuard aGuard( rMutex );
+ if( bIsList )
+ rVec = *aData.pAsVector;
+ else if( aData.pAsInterface )
+ {
+ rVec.emplace_back( aData.pAsInterface );
+ }
+ return rVec;
+}
+
+void OInterfaceContainerHelper2::copyAndResetInUse()
+{
+ OSL_ENSURE( bInUse, "OInterfaceContainerHelper2 not in use" );
+ if( bInUse )
+ {
+ // this should be the worst case. If an iterator is active
+ // and a new Listener is added.
+ if( bIsList )
+ aData.pAsVector = new std::vector< Reference< XInterface > >( *aData.pAsVector );
+ else if( aData.pAsInterface )
+ aData.pAsInterface->acquire();
+
+ bInUse = false;
+ }
+}
+
+sal_Int32 OInterfaceContainerHelper2::addInterface( const Reference<XInterface> & rListener )
+{
+ OSL_ASSERT( rListener.is() );
+ if ( !rListener.is() )
+ return 0;
+
+ MutexGuard aGuard( rMutex );
+ if( bInUse )
+ copyAndResetInUse();
+
+ if( bIsList )
+ {
+ aData.pAsVector->push_back( rListener );
+ return aData.pAsVector->size();
+ }
+ else if( aData.pAsInterface )
+ {
+ std::vector< Reference< XInterface > > * pVec = new std::vector< Reference< XInterface > >( 2 );
+ (*pVec)[0] = aData.pAsInterface;
+ (*pVec)[1] = rListener;
+ aData.pAsInterface->release();
+ aData.pAsVector = pVec;
+ bIsList = true;
+ return 2;
+ }
+ else
+ {
+ aData.pAsInterface = rListener.get();
+ if( rListener.is() )
+ rListener->acquire();
+ return 1;
+ }
+}
+
+sal_Int32 OInterfaceContainerHelper2::removeInterface( const Reference<XInterface> & rListener )
+{
+ OSL_ASSERT( rListener.is() );
+ MutexGuard aGuard( rMutex );
+ if( bInUse )
+ copyAndResetInUse();
+
+ if( bIsList )
+ {
+ // It is not valid to compare the pointer directly, but it's faster.
+ auto it = std::find_if(aData.pAsVector->begin(), aData.pAsVector->end(),
+ [&rListener](const css::uno::Reference<css::uno::XInterface>& rItem) {
+ return rItem.get() == rListener.get(); });
+
+ // interface not found, use the correct compare method
+ if (it == aData.pAsVector->end())
+ it = std::find(aData.pAsVector->begin(), aData.pAsVector->end(), rListener);
+
+ if (it != aData.pAsVector->end())
+ aData.pAsVector->erase(it);
+
+ if( aData.pAsVector->size() == 1 )
+ {
+ XInterface * p = (*aData.pAsVector)[0].get();
+ p->acquire();
+ delete aData.pAsVector;
+ aData.pAsInterface = p;
+ bIsList = false;
+ return 1;
+ }
+ else
+ return aData.pAsVector->size();
+ }
+ else if( aData.pAsInterface && Reference<XInterface>( aData.pAsInterface ) == rListener )
+ {
+ aData.pAsInterface->release();
+ aData.pAsInterface = nullptr;
+ }
+ return aData.pAsInterface ? 1 : 0;
+}
+
+Reference<XInterface> OInterfaceContainerHelper2::getInterface( sal_Int32 nIndex ) const
+{
+ MutexGuard aGuard( rMutex );
+
+ if( bIsList )
+ return (*aData.pAsVector)[nIndex];
+ else if( aData.pAsInterface )
+ {
+ if (nIndex == 0)
+ return aData.pAsInterface;
+ }
+ throw std::out_of_range("index out of range");
+}
+
+void OInterfaceContainerHelper2::disposeAndClear( const EventObject & rEvt )
+{
+ ClearableMutexGuard aGuard( rMutex );
+ OInterfaceIteratorHelper2 aIt( *this );
+ // Release container, in case new entries come while disposing
+ OSL_ENSURE( !bIsList || bInUse, "OInterfaceContainerHelper2 not in use" );
+ if( !bIsList && aData.pAsInterface )
+ aData.pAsInterface->release();
+ // set the member to null, use the iterator to delete the values
+ aData.pAsInterface = nullptr;
+ bIsList = false;
+ bInUse = false;
+ aGuard.clear();
+ while( aIt.hasMoreElements() )
+ {
+ try
+ {
+ Reference<XEventListener > xLst( aIt.next(), UNO_QUERY );
+ if( xLst.is() )
+ xLst->disposing( rEvt );
+ }
+ catch ( RuntimeException & )
+ {
+ // be robust, if e.g. a remote bridge has disposed already.
+ // there is no way to delegate the error to the caller :o(.
+ }
+ }
+}
+
+
+void OInterfaceContainerHelper2::clear()
+{
+ MutexGuard aGuard( rMutex );
+ // Release container, in case new entries come while disposing
+ OSL_ENSURE( !bIsList || bInUse, "OInterfaceContainerHelper2 not in use" );
+ if (bInUse)
+ copyAndResetInUse();
+ if (bIsList)
+ delete aData.pAsVector;
+ else if (aData.pAsInterface)
+ aData.pAsInterface->release();
+ aData.pAsInterface = nullptr;
+ bIsList = false;
+}
+
+
+
+// specialized class for type
+
+OMultiTypeInterfaceContainerHelper2::OMultiTypeInterfaceContainerHelper2( Mutex & rMutex_ )
+ : rMutex( rMutex_ )
+{
+}
+
+OMultiTypeInterfaceContainerHelper2::~OMultiTypeInterfaceContainerHelper2()
+{
+}
+
+std::vector< css::uno::Type > OMultiTypeInterfaceContainerHelper2::getContainedTypes() const
+{
+ ::osl::MutexGuard aGuard( rMutex );
+ std::vector< Type > aInterfaceTypes;
+ aInterfaceTypes.reserve( m_aMap.size() );
+ for (const auto& rItem : m_aMap)
+ {
+ // are interfaces added to this container?
+ if( rItem.second->getLength() )
+ // yes, put the type in the array
+ aInterfaceTypes.push_back(rItem.first);
+ }
+ return aInterfaceTypes;
+}
+
+OMultiTypeInterfaceContainerHelper2::t_type2ptr::iterator OMultiTypeInterfaceContainerHelper2::findType(const Type & rKey )
+{
+ return std::find_if(m_aMap.begin(), m_aMap.end(),
+ [&rKey](const t_type2ptr::value_type& rItem) { return rItem.first == rKey; });
+}
+
+OMultiTypeInterfaceContainerHelper2::t_type2ptr::const_iterator OMultiTypeInterfaceContainerHelper2::findType(const Type & rKey ) const
+{
+ return std::find_if(m_aMap.begin(), m_aMap.end(),
+ [&rKey](const t_type2ptr::value_type& rItem) { return rItem.first == rKey; });
+}
+
+OInterfaceContainerHelper2 * OMultiTypeInterfaceContainerHelper2::getContainer( const Type & rKey ) const
+{
+ ::osl::MutexGuard aGuard( rMutex );
+
+ auto iter = findType( rKey );
+ if( iter != m_aMap.end() )
+ return (*iter).second.get();
+ return nullptr;
+}
+
+sal_Int32 OMultiTypeInterfaceContainerHelper2::addInterface(
+ const Type & rKey, const Reference< XInterface > & rListener )
+{
+ ::osl::MutexGuard aGuard( rMutex );
+ auto iter = findType( rKey );
+ if( iter == m_aMap.end() )
+ {
+ OInterfaceContainerHelper2 * pLC = new OInterfaceContainerHelper2( rMutex );
+ m_aMap.emplace_back(rKey, pLC);
+ return pLC->addInterface( rListener );
+ }
+ return (*iter).second->addInterface( rListener );
+}
+
+sal_Int32 OMultiTypeInterfaceContainerHelper2::removeInterface(
+ const Type & rKey, const Reference< XInterface > & rListener )
+{
+ ::osl::MutexGuard aGuard( rMutex );
+
+ // search container with id nUik
+ auto iter = findType( rKey );
+ // container found?
+ if( iter != m_aMap.end() )
+ return (*iter).second->removeInterface( rListener );
+
+ // no container with this id. Always return 0
+ return 0;
+}
+
+void OMultiTypeInterfaceContainerHelper2::disposeAndClear( const EventObject & rEvt )
+{
+ t_type2ptr::size_type nSize = 0;
+ std::unique_ptr<OInterfaceContainerHelper2 *[]> ppListenerContainers;
+ {
+ ::osl::MutexGuard aGuard( rMutex );
+ nSize = m_aMap.size();
+ if( nSize )
+ {
+ typedef OInterfaceContainerHelper2* ppp;
+ ppListenerContainers.reset(new ppp[nSize]);
+
+ t_type2ptr::size_type i = 0;
+ for (const auto& rItem : m_aMap)
+ {
+ ppListenerContainers[i++] = rItem.second.get();
+ }
+ }
+ }
+
+ // create a copy, because do not fire event in a guarded section
+ for( t_type2ptr::size_type i = 0; i < nSize; i++ )
+ {
+ if( ppListenerContainers[i] )
+ ppListenerContainers[i]->disposeAndClear( rEvt );
+ }
+}
+
+void OMultiTypeInterfaceContainerHelper2::clear()
+{
+ ::osl::MutexGuard aGuard( rMutex );
+
+ for (auto& rItem : m_aMap)
+ rItem.second->clear();
+}
+
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */