Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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
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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 .
+ */
+#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: */