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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 :
21 : #include "SlsCacheConfiguration.hxx"
22 : #include <osl/mutex.hxx>
23 : #include <rtl/instance.hxx>
24 : #include <vcl/svapp.hxx>
25 :
26 : #include <comphelper/processfactory.hxx>
27 : #include <com/sun/star/lang/XMultiServiceFactory.hpp>
28 : #include <com/sun/star/container/XHierarchicalNameAccess.hpp>
29 : #include <com/sun/star/configuration/theDefaultProvider.hpp>
30 : #include <com/sun/star/beans/PropertyValue.hpp>
31 :
32 : using namespace ::com::sun::star;
33 : using namespace ::com::sun::star::uno;
34 :
35 : namespace sd { namespace slidesorter { namespace cache {
36 :
37 : namespace
38 : {
39 : typedef ::boost::shared_ptr<CacheConfiguration> CacheConfigSharedPtr;
40 : class theInstance :
41 : public rtl::Static<CacheConfigSharedPtr, theInstance> {};
42 : }
43 :
44 3 : ::boost::weak_ptr<CacheConfiguration> CacheConfiguration::mpWeakInstance;
45 3 : Timer CacheConfiguration::maReleaseTimer;
46 :
47 0 : ::boost::shared_ptr<CacheConfiguration> CacheConfiguration::Instance (void)
48 : {
49 0 : SolarMutexGuard aSolarGuard;
50 0 : CacheConfigSharedPtr &rInstancePtr = theInstance::get();
51 0 : if (rInstancePtr.get() == NULL)
52 : {
53 : // Maybe somebody else kept a previously created instance alive.
54 0 : if ( ! mpWeakInstance.expired())
55 0 : rInstancePtr = ::boost::shared_ptr<CacheConfiguration>(mpWeakInstance);
56 0 : if (rInstancePtr.get() == NULL)
57 : {
58 : // We have to create a new instance.
59 0 : rInstancePtr.reset(new CacheConfiguration());
60 0 : mpWeakInstance = rInstancePtr;
61 : // Prepare to release this instance in the near future.
62 : maReleaseTimer.SetTimeoutHdl(
63 0 : LINK(rInstancePtr.get(),CacheConfiguration,TimerCallback));
64 0 : maReleaseTimer.SetTimeout(5000 /* 5s */);
65 0 : maReleaseTimer.Start();
66 : }
67 : }
68 0 : return rInstancePtr;
69 : }
70 :
71 :
72 :
73 :
74 0 : CacheConfiguration::CacheConfiguration (void)
75 : {
76 : // Get the cache size from configuration.
77 0 : const ::rtl::OUString sPathToImpressConfigurationRoot("/org.openoffice.Office.Impress/");
78 0 : const ::rtl::OUString sPathToNode("MultiPaneGUI/SlideSorter/PreviewCache");
79 :
80 : try
81 : {
82 : // Obtain access to the configuration.
83 : Reference<lang::XMultiServiceFactory> xProvider =
84 0 : configuration::theDefaultProvider::get( ::comphelper::getProcessComponentContext() );
85 :
86 : // Obtain access to Impress configuration.
87 0 : Sequence<Any> aCreationArguments(3);
88 0 : aCreationArguments[0] = makeAny(beans::PropertyValue(
89 : "nodepath",
90 : 0,
91 : makeAny(sPathToImpressConfigurationRoot),
92 0 : beans::PropertyState_DIRECT_VALUE));
93 0 : aCreationArguments[1] = makeAny(beans::PropertyValue(
94 : "depth",
95 : 0,
96 : makeAny((sal_Int32)-1),
97 0 : beans::PropertyState_DIRECT_VALUE));
98 0 : aCreationArguments[2] = makeAny(beans::PropertyValue(
99 : "lazywrite",
100 : 0,
101 : makeAny(true),
102 0 : beans::PropertyState_DIRECT_VALUE));
103 :
104 0 : Reference<XInterface> xRoot (xProvider->createInstanceWithArguments(
105 : "com.sun.star.configuration.ConfigurationAccess",
106 0 : aCreationArguments));
107 0 : if ( ! xRoot.is())
108 : return;
109 0 : Reference<container::XHierarchicalNameAccess> xHierarchy (xRoot, UNO_QUERY);
110 0 : if ( ! xHierarchy.is())
111 : return;
112 :
113 : // Get the node for the slide sorter preview cache.
114 : mxCacheNode = Reference<container::XNameAccess>(
115 0 : xHierarchy->getByHierarchicalName(sPathToNode),
116 0 : UNO_QUERY);
117 : }
118 0 : catch (RuntimeException &)
119 : {
120 : }
121 0 : catch (Exception &)
122 : {
123 0 : }
124 : }
125 :
126 :
127 :
128 :
129 0 : Any CacheConfiguration::GetValue (const ::rtl::OUString& rName)
130 : {
131 0 : Any aResult;
132 :
133 0 : if (mxCacheNode != NULL)
134 : {
135 : try
136 : {
137 0 : aResult = mxCacheNode->getByName(rName);
138 : }
139 0 : catch (Exception &)
140 : {
141 : }
142 : }
143 :
144 0 : return aResult;
145 : }
146 :
147 :
148 :
149 :
150 0 : IMPL_LINK_NOARG(CacheConfiguration, TimerCallback)
151 : {
152 0 : CacheConfigSharedPtr &rInstancePtr = theInstance::get();
153 : // Release out reference to the instance.
154 0 : rInstancePtr.reset();
155 0 : return 0;
156 : }
157 :
158 :
159 9 : } } } // end of namespace ::sd::slidesorter::cache
160 :
161 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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