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Diffstat (limited to 'include/comphelper/multiinterfacecontainer3.hxx')
| -rw-r--r-- | include/comphelper/multiinterfacecontainer3.hxx | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/include/comphelper/multiinterfacecontainer3.hxx b/include/comphelper/multiinterfacecontainer3.hxx new file mode 100644 index 000000000..87199885e --- /dev/null +++ b/include/comphelper/multiinterfacecontainer3.hxx @@ -0,0 +1,217 @@ +/* -*- 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 . + */ +#pragma once + +#include <sal/config.h> + +#include <com/sun/star/lang/EventObject.hpp> +#include <comphelper/interfacecontainer3.hxx> +#include <memory> +#include <vector> + +namespace osl +{ +class Mutex; +} + +namespace comphelper +{ +/** + A helper class to store interface references of different types. + This is a copy of the similar class at include/cppuhelper/interfacecontainer.h, + but now uses the improved comphelper::InterfaceContainer3. + + @see OInterfaceIteratorHelper3 + @see OInterfaceContainerHelper3 + */ +template <class listener, class key, class equalImpl = std::equal_to<key>> +class OMultiTypeInterfaceContainerHelperVar3 +{ +public: + /** + Create a container of interface containers. + + @param rMutex the mutex to protect multi thread access. + The lifetime must be longer than the lifetime + of this object. + */ + inline OMultiTypeInterfaceContainerHelperVar3(::osl::Mutex& rMutex_) + : rMutex(rMutex_) + { + } + + /** + Return all id's under which at least one interface is added. + */ + inline std::vector<key> getContainedTypes() const + { + ::osl::MutexGuard aGuard(rMutex); + std::vector<key> aInterfaceTypes; + aInterfaceTypes.reserve(m_aMap.size()); + for (const auto& rPair : m_aMap) + // are interfaces added to this container? + if (rPair.second->getLength()) + // yes, put the type in the array + aInterfaceTypes.push_back(rPair.first); + return aInterfaceTypes; + } + + inline bool hasContainedTypes() const + { + ::osl::MutexGuard aGuard(rMutex); + for (const auto& rPair : m_aMap) + // are interfaces added to this container? + if (rPair.second->getLength()) + return true; + return false; + } + + /** + Return the container created under this key. + The InterfaceContainerHelper exists until the whole MultiTypeContainer is destroyed. + @return the container created under this key. If the container + was not created, null was returned. + */ + inline OInterfaceContainerHelper3<listener>* getContainer(const key& rKey) const + { + ::osl::MutexGuard aGuard(rMutex); + + auto iter = find(rKey); + if (iter != m_aMap.end()) + return (*iter).second.get(); + return nullptr; + } + + /** Inserts an element into the container with the specified key. + The position is not specified, thus it is not specified in which order events are fired. + + @attention + If you add the same interface more than once, then it will be added to the elements list + more than once and thus if you want to remove that interface from the list, you have to call + removeInterface() the same number of times. + In the latter case, you will also get events fired more than once (if the interface is a + listener interface). + + @param rKey + the id of the container + @param r + interface to be added; it is allowed, to insert null or + the same interface more than once + @return + the new count of elements in the container + */ + inline sal_Int32 addInterface(const key& rKey, const css::uno::Reference<listener>& rListener) + { + ::osl::MutexGuard aGuard(rMutex); + auto iter = find(rKey); + if (iter == m_aMap.end()) + { + auto pLC = new OInterfaceContainerHelper3<listener>(rMutex); + m_aMap.emplace_back(rKey, pLC); + return pLC->addInterface(rListener); + } + else + return (*iter).second->addInterface(rListener); + } + + /** Removes an element from the container with the specified key. + It uses interface equality to remove the interface. + + @param rKey + the id of the container + @param rxIFace + interface to be removed + @return + the new count of elements in the container + */ + inline sal_Int32 removeInterface(const key& rKey, + const css::uno::Reference<listener>& rListener) + { + ::osl::MutexGuard aGuard(rMutex); + + // search container with id nUik + auto iter = find(rKey); + // container found? + if (iter != m_aMap.end()) + return (*iter).second->removeInterface(rListener); + + // no container with this id. Always return 0 + return 0; + } + + /** + Call disposing on all references in the container, that + support XEventListener. Then clears the container. + @param rEvt the event object which is passed during disposing() call + */ + inline void disposeAndClear(const css::lang::EventObject& rEvt) + { + // create a copy, because do not fire event in a guarded section + InterfaceMap tempMap; + { + ::osl::MutexGuard aGuard(rMutex); + tempMap = std::move(m_aMap); + } + + for (auto& rPair : tempMap) + rPair.second->disposeAndClear(rEvt); + } + + /** + Remove all elements of all containers. Does not delete the container. + */ + inline void clear() + { + ::osl::MutexGuard aGuard(rMutex); + + for (const auto& rPair : m_aMap) + rPair.second->clear(); + } + + typedef key keyType; + +private: + typedef ::std::vector<std::pair<key, std::unique_ptr<OInterfaceContainerHelper3<listener>>>> + InterfaceMap; + InterfaceMap m_aMap; + ::osl::Mutex& rMutex; + + typename InterfaceMap::const_iterator find(const key& rKey) const + { + auto iter = m_aMap.begin(); + auto end = m_aMap.end(); + + while (iter != end) + { + equalImpl equal; + if (equal(iter->first, rKey)) + break; + ++iter; + } + return iter; + } + + OMultiTypeInterfaceContainerHelperVar3(const OMultiTypeInterfaceContainerHelperVar3&) = delete; + OMultiTypeInterfaceContainerHelperVar3& operator=(const OMultiTypeInterfaceContainerHelperVar3&) + = delete; +}; + +} // namespace comphelper + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |