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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: */