1*c45d927aSAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3*c45d927aSAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*c45d927aSAndrew Rist * or more contributor license agreements. See the NOTICE file 5*c45d927aSAndrew Rist * distributed with this work for additional information 6*c45d927aSAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*c45d927aSAndrew Rist * to you under the Apache License, Version 2.0 (the 8*c45d927aSAndrew Rist * "License"); you may not use this file except in compliance 9*c45d927aSAndrew Rist * with the License. You may obtain a copy of the License at 10cdf0e10cSrcweir * 11*c45d927aSAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12cdf0e10cSrcweir * 13*c45d927aSAndrew Rist * Unless required by applicable law or agreed to in writing, 14*c45d927aSAndrew Rist * software distributed under the License is distributed on an 15*c45d927aSAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*c45d927aSAndrew Rist * KIND, either express or implied. See the License for the 17*c45d927aSAndrew Rist * specific language governing permissions and limitations 18*c45d927aSAndrew Rist * under the License. 19cdf0e10cSrcweir * 20*c45d927aSAndrew Rist *************************************************************/ 21*c45d927aSAndrew Rist 22*c45d927aSAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir #ifndef SD_SLIDESORTER_CACHE_CONFIGURATION_HXX 25cdf0e10cSrcweir #define SD_SLIDESORTER_CACHE_CONFIGURATION_HXX 26cdf0e10cSrcweir 27cdf0e10cSrcweir #include <com/sun/star/uno/Any.hxx> 28cdf0e10cSrcweir #include <vcl/timer.hxx> 29cdf0e10cSrcweir #include <com/sun/star/container/XNameAccess.hpp> 30cdf0e10cSrcweir #include <boost/shared_ptr.hpp> 31cdf0e10cSrcweir #include <boost/weak_ptr.hpp> 32cdf0e10cSrcweir 33cdf0e10cSrcweir namespace sd { namespace slidesorter { namespace cache { 34cdf0e10cSrcweir 35cdf0e10cSrcweir /** A very simple and easy-to-use access to configuration entries regarding 36cdf0e10cSrcweir the slide sorter cache. 37cdf0e10cSrcweir */ 38cdf0e10cSrcweir class CacheConfiguration 39cdf0e10cSrcweir { 40cdf0e10cSrcweir public: 41cdf0e10cSrcweir /** Return an instance to this class. The reference is released after 5 42cdf0e10cSrcweir seconds. Subsequent calls to this function will create a new 43cdf0e10cSrcweir instance. 44cdf0e10cSrcweir */ 45cdf0e10cSrcweir static ::boost::shared_ptr<CacheConfiguration> Instance (void); 46cdf0e10cSrcweir 47cdf0e10cSrcweir /** Look up the specified value in 48cdf0e10cSrcweir MultiPaneGUI/SlideSorter/PreviewCache. When the specified value 49cdf0e10cSrcweir does not exist then an empty Any is returned. 50cdf0e10cSrcweir */ 51cdf0e10cSrcweir ::com::sun::star::uno::Any GetValue (const ::rtl::OUString& rName); 52cdf0e10cSrcweir 53cdf0e10cSrcweir private: 54cdf0e10cSrcweir static ::boost::shared_ptr<CacheConfiguration> mpInstance; 55cdf0e10cSrcweir /** When a caller holds a reference after we have released ours we use 56cdf0e10cSrcweir this weak pointer to avoid creating a new instance. 57cdf0e10cSrcweir */ 58cdf0e10cSrcweir static ::boost::weak_ptr<CacheConfiguration> mpWeakInstance; 59cdf0e10cSrcweir static Timer maReleaseTimer; 60cdf0e10cSrcweir ::com::sun::star::uno::Reference< 61cdf0e10cSrcweir ::com::sun::star::container::XNameAccess> mxCacheNode; 62cdf0e10cSrcweir 63cdf0e10cSrcweir CacheConfiguration (void); 64cdf0e10cSrcweir 65cdf0e10cSrcweir DECL_LINK(TimerCallback, Timer*); 66cdf0e10cSrcweir }; 67cdf0e10cSrcweir 68cdf0e10cSrcweir } } } // end of namespace ::sd::slidesorter::cache 69cdf0e10cSrcweir 70cdf0e10cSrcweir #endif 71