00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ 00002 /* 00003 * This file is part of the LibreOffice project. 00004 * 00005 * This Source Code Form is subject to the terms of the Mozilla Public 00006 * License, v. 2.0. If a copy of the MPL was not distributed with this 00007 * file, You can obtain one at http://mozilla.org/MPL/2.0/. 00008 * 00009 * This file incorporates work covered by the following license notice: 00010 * 00011 * Licensed to the Apache Software Foundation (ASF) under one or more 00012 * contributor license agreements. See the NOTICE file distributed 00013 * with this work for additional information regarding copyright 00014 * ownership. The ASF licenses this file to you under the Apache 00015 * License, Version 2.0 (the "License"); you may not use this file 00016 * except in compliance with the License. You may obtain a copy of 00017 * the License at http://www.apache.org/licenses/LICENSE-2.0 . 00018 */ 00019 #ifndef _CPPUHELPER_WEAKREF_HXX_ 00020 #define _CPPUHELPER_WEAKREF_HXX_ 00021 00022 #include <com/sun/star/uno/XInterface.hpp> 00023 #include "cppuhelperdllapi.h" 00024 00025 00026 namespace com 00027 { 00028 namespace sun 00029 { 00030 namespace star 00031 { 00032 namespace uno 00033 { 00034 00035 class OWeakRefListener; 00036 00040 class CPPUHELPER_DLLPUBLIC WeakReferenceHelper 00041 { 00042 public: 00045 inline WeakReferenceHelper() SAL_THROW(()) 00046 : m_pImpl( 0 ) 00047 {} 00048 00053 WeakReferenceHelper( const WeakReferenceHelper & rWeakRef ) SAL_THROW(()); 00059 WeakReferenceHelper( const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > & xInt ) 00060 SAL_THROW(()); 00063 ~WeakReferenceHelper() SAL_THROW(()); 00064 00069 WeakReferenceHelper & SAL_CALL operator = ( const WeakReferenceHelper & rWeakRef ) SAL_THROW(()); 00070 00077 WeakReferenceHelper & SAL_CALL operator = ( 00078 const ::com::sun::star::uno::Reference< 00079 ::com::sun::star::uno::XInterface > & xInt ) SAL_THROW(()); 00080 00086 inline sal_Bool SAL_CALL operator == ( const WeakReferenceHelper & rObj ) const SAL_THROW(()) 00087 { return (get() == rObj.get()); } 00088 00093 ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > SAL_CALL get() const SAL_THROW(()); 00098 inline SAL_CALL operator Reference< XInterface > () const SAL_THROW(()) 00099 { return get(); } 00100 00105 void SAL_CALL clear() SAL_THROW(()); 00106 00107 protected: 00109 OWeakRefListener * m_pImpl; 00111 }; 00112 00118 template< class interface_type > 00119 class WeakReference : public WeakReferenceHelper 00120 { 00121 public: 00124 inline WeakReference() SAL_THROW(()) 00125 : WeakReferenceHelper() 00126 {} 00127 00132 inline WeakReference( const Reference< interface_type > & rRef ) SAL_THROW(()) 00133 : WeakReferenceHelper( rRef ) 00134 {} 00135 00144 WeakReference & SAL_CALL operator = ( 00145 const ::com::sun::star::uno::Reference< interface_type > & xInt ) 00146 SAL_THROW(()) 00147 { WeakReferenceHelper::operator=(xInt); return *this; } 00148 00153 inline SAL_CALL operator Reference< interface_type > () const SAL_THROW(()) 00154 { return Reference< interface_type >::query( get() ); } 00155 }; 00156 00157 } 00158 } 00159 } 00160 } 00161 00162 #endif 00163 00164 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */