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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_SELECTIONMULTIPLEX_HXX
#define INCLUDED_COMPHELPER_SELECTIONMULTIPLEX_HXX
#include <com/sun/star/view/XSelectionChangeListener.hpp>
#include <com/sun/star/lang/EventObject.hpp>
#include <cppuhelper/implbase.hxx>
#include <comphelper/comphelperdllapi.h>
namespace com::sun::star::view { class XSelectionSupplier; }
//= selection helper classes
namespace comphelper
{
//= OSelectionChangeListener
/// simple listener adapter for selections
class COMPHELPER_DLLPUBLIC OSelectionChangeListener
{
friend class OSelectionChangeMultiplexer;
public:
virtual ~OSelectionChangeListener();
/// @throws css::uno::RuntimeException
virtual void _selectionChanged( const css::lang::EventObject& aEvent ) = 0;
/// @throws css::uno::RuntimeException
virtual void _disposing(const css::lang::EventObject& _rSource);
};
//= OSelectionChangeMultiplexer
/// multiplexer for selection changes
class COMPHELPER_DLLPUBLIC OSelectionChangeMultiplexer final : public cppu::WeakImplHelper< css::view::XSelectionChangeListener>
{
friend class OSelectionChangeListener;
css::uno::Reference< css::view::XSelectionSupplier> m_xSet;
OSelectionChangeListener* m_pListener;
sal_Int32 m_nLockCount;
OSelectionChangeMultiplexer(const OSelectionChangeMultiplexer&) = delete;
OSelectionChangeMultiplexer& operator=(const OSelectionChangeMultiplexer&) = delete;
virtual ~OSelectionChangeMultiplexer() override;
public:
OSelectionChangeMultiplexer(OSelectionChangeListener* _pListener, const css::uno::Reference< css::view::XSelectionSupplier>& _rxSet);
// XEventListener
virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;
// XSelectionChangeListener
virtual void SAL_CALL selectionChanged( const css::lang::EventObject& aEvent ) override;
/// incremental lock
void lock();
/// incremental unlock
void unlock();
/// get the lock count
sal_Int32 locked() const { return m_nLockCount; }
void dispose();
};
} // namespace comphelper
#endif // INCLUDED_COMPHELPER_SELECTIONMULTIPLEX_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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