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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 .
*/
#include "SlsCacheConfiguration.hxx"
#include <osl/mutex.hxx>
#include <rtl/instance.hxx>
#include <vcl/svapp.hxx>
#include <comphelper/processfactory.hxx>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/container/XHierarchicalNameAccess.hpp>
#include <com/sun/star/configuration/theDefaultProvider.hpp>
#include <com/sun/star/beans/PropertyValue.hpp>
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
namespace sd { namespace slidesorter { namespace cache {
namespace
{
typedef ::boost::shared_ptr<CacheConfiguration> CacheConfigSharedPtr;
class theInstance :
public rtl::Static<CacheConfigSharedPtr, theInstance> {};
}
::boost::weak_ptr<CacheConfiguration> CacheConfiguration::mpWeakInstance;
Timer CacheConfiguration::maReleaseTimer;
::boost::shared_ptr<CacheConfiguration> CacheConfiguration::Instance()
{
SolarMutexGuard aSolarGuard;
CacheConfigSharedPtr &rInstancePtr = theInstance::get();
if (rInstancePtr.get() == NULL)
{
// Maybe somebody else kept a previously created instance alive.
if ( ! mpWeakInstance.expired())
rInstancePtr = ::boost::shared_ptr<CacheConfiguration>(mpWeakInstance);
if (rInstancePtr.get() == NULL)
{
// We have to create a new instance.
rInstancePtr.reset(new CacheConfiguration());
mpWeakInstance = rInstancePtr;
// Prepare to release this instance in the near future.
maReleaseTimer.SetTimeoutHdl(
LINK(rInstancePtr.get(),CacheConfiguration,TimerCallback));
maReleaseTimer.SetTimeout(5000 /* 5s */);
maReleaseTimer.Start();
}
}
return rInstancePtr;
}
CacheConfiguration::CacheConfiguration()
{
// Get the cache size from configuration.
const OUString sPathToImpressConfigurationRoot("/org.openoffice.Office.Impress/");
const OUString sPathToNode("MultiPaneGUI/SlideSorter/PreviewCache");
try
{
// Obtain access to the configuration.
Reference<lang::XMultiServiceFactory> xProvider =
configuration::theDefaultProvider::get( ::comphelper::getProcessComponentContext() );
// Obtain access to Impress configuration.
Sequence<Any> aCreationArguments(3);
aCreationArguments[0] = makeAny(beans::PropertyValue(
"nodepath",
0,
makeAny(sPathToImpressConfigurationRoot),
beans::PropertyState_DIRECT_VALUE));
aCreationArguments[1] = makeAny(beans::PropertyValue(
"depth",
0,
makeAny((sal_Int32)-1),
beans::PropertyState_DIRECT_VALUE));
aCreationArguments[2] = makeAny(beans::PropertyValue(
"lazywrite",
0,
makeAny(true),
beans::PropertyState_DIRECT_VALUE));
Reference<XInterface> xRoot (xProvider->createInstanceWithArguments(
"com.sun.star.configuration.ConfigurationAccess",
aCreationArguments));
if ( ! xRoot.is())
return;
Reference<container::XHierarchicalNameAccess> xHierarchy (xRoot, UNO_QUERY);
if ( ! xHierarchy.is())
return;
// Get the node for the slide sorter preview cache.
mxCacheNode = Reference<container::XNameAccess>(
xHierarchy->getByHierarchicalName(sPathToNode),
UNO_QUERY);
}
catch (RuntimeException &)
{
}
catch (Exception &)
{
}
}
Any CacheConfiguration::GetValue (const OUString& rName)
{
Any aResult;
if (mxCacheNode != NULL)
{
try
{
aResult = mxCacheNode->getByName(rName);
}
catch (Exception &)
{
}
}
return aResult;
}
IMPL_STATIC_LINK_NOINSTANCE_NOARG_TYPED(CacheConfiguration, TimerCallback, Timer *, void)
{
CacheConfigSharedPtr &rInstancePtr = theInstance::get();
// Release our reference to the instance.
rInstancePtr.reset();
}
} } } // end of namespace ::sd::slidesorter::cache
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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