/src/libreoffice/xmloff/source/style/SinglePropertySetInfoCache.cxx
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1 | | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
2 | | /* |
3 | | * This file is part of the LibreOffice project. |
4 | | * |
5 | | * This Source Code Form is subject to the terms of the Mozilla Public |
6 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
7 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
8 | | * |
9 | | * This file incorporates work covered by the following license notice: |
10 | | * |
11 | | * Licensed to the Apache Software Foundation (ASF) under one or more |
12 | | * contributor license agreements. See the NOTICE file distributed |
13 | | * with this work for additional information regarding copyright |
14 | | * ownership. The ASF licenses this file to you under the Apache |
15 | | * License, Version 2.0 (the "License"); you may not use this file |
16 | | * except in compliance with the License. You may obtain a copy of |
17 | | * the License at http://www.apache.org/licenses/LICENSE-2.0 . |
18 | | */ |
19 | | |
20 | | #include <cppuhelper/weakref.hxx> |
21 | | #include <xmloff/SinglePropertySetInfoCache.hxx> |
22 | | #include <com/sun/star/beans/XPropertySet.hpp> |
23 | | |
24 | | using namespace ::com::sun::star::uno; |
25 | | using ::com::sun::star::beans::XPropertySet; |
26 | | using ::com::sun::star::beans::XPropertySetInfo; |
27 | | |
28 | | bool SinglePropertySetInfoCache::hasProperty( |
29 | | const Reference< XPropertySet >& rPropSet, |
30 | | Reference< XPropertySetInfo >& rPropSetInfo ) |
31 | 0 | { |
32 | 0 | if( !rPropSetInfo.is() ) |
33 | 0 | rPropSetInfo = rPropSet->getPropertySetInfo(); |
34 | 0 | Map::iterator aIter = m_Map.find( rPropSetInfo ); |
35 | 0 | if( aIter != m_Map.end() ) |
36 | 0 | { |
37 | 0 | return (*aIter).second; |
38 | 0 | } |
39 | 0 | bool bRet = rPropSetInfo->hasPropertyByName( m_sName ); |
40 | | // Check whether the property set info is destroyed if it is assigned to a |
41 | | // weak reference only; if it is destroyed, then every instance of |
42 | | // getPropertySetInfo returns a new object; Such property set infos must not |
43 | | // be cached: |
44 | 0 | WeakReference < XPropertySetInfo > xWeakInfo( rPropSetInfo ); |
45 | 0 | rPropSetInfo = nullptr; |
46 | 0 | rPropSetInfo = xWeakInfo; |
47 | 0 | if( rPropSetInfo.is() ) |
48 | 0 | { |
49 | 0 | m_Map.emplace(rPropSetInfo, bRet); |
50 | 0 | } |
51 | 0 | return bRet; |
52 | 0 | } |
53 | | |
54 | | /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |