1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef _COMPHELPER_PROPERTY_MULTIPLEX_HXX_ 25 #define _COMPHELPER_PROPERTY_MULTIPLEX_HXX_ 26 27 #include <comphelper/propstate.hxx> 28 #include <cppuhelper/implbase1.hxx> 29 #include "comphelper/comphelperdllapi.h" 30 31 //========================================================================= 32 //= property helper classes 33 //========================================================================= 34 35 //......................................................................... 36 namespace comphelper 37 { 38 //......................................................................... 39 40 class OPropertyChangeMultiplexer; 41 42 //================================================================== 43 //= OPropertyChangeListener 44 //================================================================== 45 /// simple listener adapter for property sets 46 class COMPHELPER_DLLPUBLIC OPropertyChangeListener 47 { 48 friend class OPropertyChangeMultiplexer; 49 50 OPropertyChangeMultiplexer* m_pAdapter; 51 ::osl::Mutex& m_rMutex; 52 53 public: OPropertyChangeListener(::osl::Mutex & _rMutex)54 OPropertyChangeListener(::osl::Mutex& _rMutex) 55 : m_pAdapter(NULL), m_rMutex(_rMutex) { } 56 virtual ~OPropertyChangeListener(); 57 58 virtual void _propertyChanged(const ::com::sun::star::beans::PropertyChangeEvent& _rEvent) throw( ::com::sun::star::uno::RuntimeException) = 0; 59 virtual void _disposing(const ::com::sun::star::lang::EventObject& _rSource) throw( ::com::sun::star::uno::RuntimeException); 60 61 protected: 62 /** If the derivee also owns the mutex which we know as reference, then call this within your 63 derivee's dtor. 64 */ 65 void disposeAdapter(); 66 67 // pseudo-private. Making it private now could break compatibility 68 void setAdapter( OPropertyChangeMultiplexer* _pAdapter ); 69 }; 70 71 //================================================================== 72 //= OPropertyChangeMultiplexer 73 //================================================================== 74 /// multiplexer for property changes 75 class COMPHELPER_DLLPUBLIC OPropertyChangeMultiplexer :public cppu::WeakImplHelper1< ::com::sun::star::beans::XPropertyChangeListener> 76 { 77 friend class OPropertyChangeListener; 78 ::com::sun::star::uno::Sequence< ::rtl::OUString > m_aProperties; 79 ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet> m_xSet; 80 OPropertyChangeListener* m_pListener; 81 sal_Int32 m_nLockCount; 82 sal_Bool m_bListening : 1; 83 sal_Bool m_bAutoSetRelease : 1; 84 85 86 virtual ~OPropertyChangeMultiplexer(); 87 public: 88 OPropertyChangeMultiplexer(OPropertyChangeListener* _pListener, const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet>& _rxSet, sal_Bool _bAutoReleaseSet = sal_True); 89 90 // XEventListener 91 virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& Source ) throw( ::com::sun::star::uno::RuntimeException); 92 93 // XPropertyChangeListener 94 virtual void SAL_CALL propertyChange( const ::com::sun::star::beans::PropertyChangeEvent& evt ) throw( ::com::sun::star::uno::RuntimeException); 95 96 /// incremental lock 97 void lock(); 98 /// incremental unlock 99 void unlock(); 100 /// get the lock count locked() const101 sal_Int32 locked() const { return m_nLockCount; } 102 103 void addProperty(const ::rtl::OUString& aPropertyName); 104 void dispose(); 105 }; 106 107 //......................................................................... 108 } // namespace comphelper 109 //......................................................................... 110 111 #endif // _COMPHELPER_PROPERTY_MULTIPLEX_HXX_ 112