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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 <config_options.h>
#include <com/sun/star/beans/XPropertyChangeListener.hpp>
#include <cppuhelper/implbase.hxx>
#include <comphelper/comphelperdllapi.h>
#include <rtl/ref.hxx>
#include <mutex>
#include <vector>
namespace com::sun::star::beans
{
class XPropertySet;
}
//= property helper classes
namespace comphelper
{
class OPropertyChangeMultiplexer2;
//= OPropertyChangeListener
/// simple listener adapter for property sets
class UNLESS_MERGELIBS(COMPHELPER_DLLPUBLIC) OPropertyChangeListener2
{
friend class OPropertyChangeMultiplexer2;
rtl::Reference<OPropertyChangeMultiplexer2> m_xAdapter;
public:
virtual ~OPropertyChangeListener2();
/// @throws css::uno::RuntimeException
virtual void _propertyChanged(const css::beans::PropertyChangeEvent& _rEvent) = 0;
protected:
/** If the derivee also owns the mutex which we know as reference, then call this within your
derivee's dtor.
*/
void disposeAdapter(std::unique_lock<std::mutex>& rGuard);
private:
void setAdapter(std::unique_lock<std::mutex>& rGuard, OPropertyChangeMultiplexer2* _pAdapter);
};
//= OPropertyChangeMultiplexer2
// A copy of OPropertyChangeMultiplexer except that it uses std::mutex instead osl::Mutex
/// multiplexer for property changes
// workaround for incremental linking bugs in MSVC2019
class SAL_DLLPUBLIC_TEMPLATE OPropertyChangeMultiplexer_Base2
: public cppu::WeakImplHelper<css::beans::XPropertyChangeListener>
{
};
class UNLESS_MERGELIBS(COMPHELPER_DLLPUBLIC) OPropertyChangeMultiplexer2 final
: public OPropertyChangeMultiplexer_Base2
{
friend class OPropertyChangeListener2;
std::mutex& m_rMutex;
std::vector<OUString> m_aProperties;
css::uno::Reference<css::beans::XPropertySet> m_xSet;
OPropertyChangeListener2* m_pListener;
sal_Int32 m_nLockCount;
bool m_bListening : 1;
void onListenerDestruction();
virtual ~OPropertyChangeMultiplexer2() override;
public:
OPropertyChangeMultiplexer2(std::mutex& rMutex, std::unique_lock<std::mutex>& rGuard,
OPropertyChangeListener2* _pListener,
const css::uno::Reference<css::beans::XPropertySet>& _rxSet);
// XEventListener
virtual void SAL_CALL disposing(const css::lang::EventObject& Source) override;
// XPropertyChangeListener
virtual void SAL_CALL propertyChange(const css::beans::PropertyChangeEvent& evt) override;
/// incremental lock
void lock();
/// incremental unlock
void unlock();
/// get the lock count
sal_Int32 locked() const { return m_nLockCount; }
void addProperty(const OUString& aPropertyName);
void dispose(std::unique_lock<std::mutex>& rGuard);
};
} // namespace comphelper
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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