comphelper/source/property/propmultiplex.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_comphelper.hxx"
  33 #include <comphelper/propmultiplex.hxx>
  34 #include <osl/diagnose.h>
  35
  36 //.........................................................................
  37 namespace comphelper
  38 {
  39 //.........................................................................
  40
  41 using namespace ::com::sun::star::uno;
  42 using namespace ::com::sun::star::lang;
  43 using namespace ::com::sun::star::beans;
  44
  45 //========================================================================
  46 //= OPropertyChangeListener
  47 //========================================================================
  48 //------------------------------------------------------------------------
  49 OPropertyChangeListener::~OPropertyChangeListener()
  50 {
  51     if (m_pAdapter)
  52         m_pAdapter->dispose();
  53 }
  54
  55 //------------------------------------------------------------------
  56 void OPropertyChangeListener::_disposing(const EventObject&) throw( RuntimeException)
  57 {
  58     // nothing to do here
  59 }
  60
  61 //------------------------------------------------------------------
  62 void OPropertyChangeListener::disposeAdapter()
  63 {
  64     if ( m_pAdapter )
  65         m_pAdapter->dispose();
  66
  67     // will automatically set a new adapter
  68     OSL_ENSURE( !m_pAdapter, "OPropertyChangeListener::disposeAdapter: what did dispose do?" );
  69 }
  70
  71 //------------------------------------------------------------------
  72 void OPropertyChangeListener::setAdapter(OPropertyChangeMultiplexer* pAdapter)
  73 {
  74     if (m_pAdapter)
  75     {
  76         ::osl::MutexGuard aGuard(m_rMutex);
  77         m_pAdapter->release();
  78         m_pAdapter = NULL;
  79     }
  80
  81     if (pAdapter)
  82     {
  83         ::osl::MutexGuard aGuard(m_rMutex);
  84         m_pAdapter = pAdapter;
  85         m_pAdapter->acquire();
  86     }
  87 }
  88
  89 //========================================================================
  90 //= OPropertyChangeMultiplexer
  91 //========================================================================
  92 //------------------------------------------------------------------
  93 OPropertyChangeMultiplexer::OPropertyChangeMultiplexer(OPropertyChangeListener* _pListener, const  Reference< XPropertySet>& _rxSet, sal_Bool _bAutoReleaseSet)
  94             :m_xSet(_rxSet)
  95             ,m_pListener(_pListener)
  96             ,m_nLockCount(0)
  97             ,m_bListening(sal_False)
  98             ,m_bAutoSetRelease(_bAutoReleaseSet)
  99 {
 100     m_pListener->setAdapter(this);
 101 }
 102
 103 //------------------------------------------------------------------
 104 OPropertyChangeMultiplexer::~OPropertyChangeMultiplexer()
 105 {
 106 }
 107
 108 //------------------------------------------------------------------
 109 void OPropertyChangeMultiplexer::lock()
 110 {
 111     ++m_nLockCount;
 112 }
 113
 114 //------------------------------------------------------------------
 115 void OPropertyChangeMultiplexer::unlock()
 116 {
 117     --m_nLockCount;
 118 }
 119
 120 //------------------------------------------------------------------
 121 void OPropertyChangeMultiplexer::dispose()
 122 {
 123     if (m_bListening)
 124     {
 125         Reference< XPropertyChangeListener> xPreventDelete(this);
 126
 127         const ::rtl::OUString* pProperties = m_aProperties.getConstArray();
 128         for (sal_Int32 i = 0; i < m_aProperties.getLength(); ++i, ++pProperties)
 129             m_xSet->removePropertyChangeListener(*pProperties, static_cast< XPropertyChangeListener*>(this));
 130
 131         m_pListener->setAdapter(NULL);
 132
 133         m_pListener = NULL;
 134         m_bListening = sal_False;
 135
 136         if (m_bAutoSetRelease)
 137             m_xSet = NULL;
 138     }
 139 }
 140
 141 // XEventListener
 142 //------------------------------------------------------------------
 143 void SAL_CALL OPropertyChangeMultiplexer::disposing( const  EventObject& _rSource) throw( RuntimeException)
 144 {
 145     if (m_pListener)
 146     {
 147          // tell the listener
 148         if (!locked())
 149             m_pListener->_disposing(_rSource);
 150         // disconnect the listener
 151         if (m_pListener)        // may have been reset whilest calling into _disposing
 152             m_pListener->setAdapter(NULL);
 153     }
 154
 155     m_pListener = NULL;
 156     m_bListening = sal_False;
 157
 158     if (m_bAutoSetRelease)
 159         m_xSet = NULL;
 160 }
 161
 162 // XPropertyChangeListener
 163 //------------------------------------------------------------------
 164 void SAL_CALL OPropertyChangeMultiplexer::propertyChange( const  PropertyChangeEvent& _rEvent ) throw( RuntimeException)
 165 {
 166     if (m_pListener && !locked())
 167         m_pListener->_propertyChanged(_rEvent);
 168 }
 169
 170 //------------------------------------------------------------------
 171 void OPropertyChangeMultiplexer::addProperty(const ::rtl::OUString& _sPropertyName)
 172 {
 173     if (m_xSet.is())
 174     {
 175         m_xSet->addPropertyChangeListener(_sPropertyName, static_cast< XPropertyChangeListener*>(this));
 176         m_aProperties.realloc(m_aProperties.getLength() + 1);
 177         m_aProperties.getArray()[m_aProperties.getLength()-1] = _sPropertyName;
 178         m_bListening = sal_True;
 179     }
 180 }
 181
 182 //.........................................................................
 183 }
 184 //.........................................................................
 185