diff options
Diffstat (limited to 'include/comphelper/propmultiplex.hxx')
-rw-r--r-- | include/comphelper/propmultiplex.hxx | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/include/comphelper/propmultiplex.hxx b/include/comphelper/propmultiplex.hxx new file mode 100644 index 0000000000..30285f3e62 --- /dev/null +++ b/include/comphelper/propmultiplex.hxx @@ -0,0 +1,115 @@ +/* -*- 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: */ |