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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 .
+ */
+
+#ifndef INCLUDED_COMPHELPER_PROPMULTIPLEX_HXX
+#define INCLUDED_COMPHELPER_PROPMULTIPLEX_HXX
+
+#include <com/sun/star/beans/XPropertyChangeListener.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <comphelper/comphelperdllapi.h>
+#include <rtl/ref.hxx>
+#include <vector>
+
+namespace com::sun::star::beans { class XPropertySet; }
+
+//= property helper classes
+
+
+namespace comphelper
+{
+
+
+ class OPropertyChangeMultiplexer;
+
+
+ //= OPropertyChangeListener
+
+ /// simple listener adapter for property sets
+ class COMPHELPER_DLLPUBLIC OPropertyChangeListener
+ {
+ friend class OPropertyChangeMultiplexer;
+
+ rtl::Reference<OPropertyChangeMultiplexer> m_xAdapter;
+ ::osl::Mutex& m_rMutex;
+
+ public:
+ OPropertyChangeListener(::osl::Mutex& _rMutex)
+ : m_rMutex(_rMutex) { }
+ virtual ~OPropertyChangeListener();
+
+ /// @throws css::uno::RuntimeException
+ virtual void _propertyChanged(const css::beans::PropertyChangeEvent& _rEvent) = 0;
+ /// @throws css::uno::RuntimeException
+ virtual void _disposing(const css::lang::EventObject& _rSource);
+
+ protected:
+ /** If the derivee also owns the mutex which we know as reference, then call this within your
+ derivee's dtor.
+ */
+ void disposeAdapter();
+
+ private:
+ void setAdapter( OPropertyChangeMultiplexer* _pAdapter );
+ };
+
+
+ //= OPropertyChangeMultiplexer
+
+ /// multiplexer for property changes
+ // workaround for incremental linking bugs in MSVC2019
+ class SAL_DLLPUBLIC_TEMPLATE OPropertyChangeMultiplexer_Base : public cppu::WeakImplHelper< css::beans::XPropertyChangeListener > {};
+ class COMPHELPER_DLLPUBLIC OPropertyChangeMultiplexer final : public OPropertyChangeMultiplexer_Base
+ {
+ friend class OPropertyChangeListener;
+ std::vector< OUString > m_aProperties;
+ css::uno::Reference< css::beans::XPropertySet> m_xSet;
+ OPropertyChangeListener* m_pListener;
+ sal_Int32 m_nLockCount;
+ bool m_bListening : 1;
+ bool const m_bAutoSetRelease : 1;
+
+
+ virtual ~OPropertyChangeMultiplexer() override;
+ public:
+ OPropertyChangeMultiplexer(OPropertyChangeListener* _pListener, const css::uno::Reference< css::beans::XPropertySet>& _rxSet, bool _bAutoReleaseSet = true);
+
+ // 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();
+ };
+
+
+} // namespace comphelper
+
+
+#endif // INCLUDED_COMPHELPER_PROPMULTIPLEX_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */