embeddedobj/source/msole/advisesink.cxx

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  28
  29 #include <osl/diagnose.h>
  30 #include <advisesink.hxx>
  31 #include <olecomponent.hxx>
  32
  33 #include <rtl/ref.hxx>
  34
  35 OleWrapperAdviseSink::OleWrapperAdviseSink( OleComponent* pOleComp )
  36 : m_nRefCount( 0 )
  37 , m_pOleComp( pOleComp )
  38 {
  39     OSL_ENSURE( m_pOleComp, "No ole component is provided!\n" );
  40 }
  41
  42 OleWrapperAdviseSink::~OleWrapperAdviseSink()
  43 {
  44 }
  45
  46 STDMETHODIMP OleWrapperAdviseSink::QueryInterface( REFIID riid , void** ppv )
  47 {
  48     *ppv=NULL;
  49
  50     if ( riid == IID_IUnknown )
  51         *ppv = (IUnknown*)this;
  52
  53     if ( riid == IID_IAdviseSink )
  54         *ppv = (IAdviseSink*)this;
  55
  56     if ( *ppv != NULL )
  57     {
  58         ((IUnknown*)*ppv)->AddRef();
  59         return S_OK;
  60     }
  61
  62     return E_NOINTERFACE;
  63 }
  64
  65 STDMETHODIMP_(ULONG) OleWrapperAdviseSink::AddRef()
  66 {
  67     return osl_incrementInterlockedCount( &m_nRefCount);
  68 }
  69
  70 STDMETHODIMP_(ULONG) OleWrapperAdviseSink::Release()
  71 {
  72     ULONG nReturn = --m_nRefCount;
  73     if ( m_nRefCount == 0 )
  74         delete this;
  75
  76     return nReturn;
  77 }
  78
  79 void OleWrapperAdviseSink::disconnectOleComponent()
  80 {
  81     // must not be called from the descructor of OleComponent!!!
  82     osl::MutexGuard aGuard( m_aMutex );
  83     m_pOleComp = NULL;
  84 }
  85
  86 STDMETHODIMP_(void) OleWrapperAdviseSink::OnDataChange(LPFORMATETC, LPSTGMEDIUM)
  87 {
  88     // Unused for now ( no registration for IDataObject events )
  89 }
  90
  91 STDMETHODIMP_(void) OleWrapperAdviseSink::OnViewChange(DWORD dwAspect, LONG)
  92 {
  93     ::rtl::Reference< OleComponent > xLockComponent;
  94
  95     {
  96         osl::MutexGuard aGuard( m_aMutex );
  97         if ( m_pOleComp )
  98             xLockComponent = m_pOleComp;
  99     }
 100
 101     if ( xLockComponent.is() )
 102         xLockComponent->OnViewChange_Impl( dwAspect );
 103 }
 104
 105 STDMETHODIMP_(void) OleWrapperAdviseSink::OnRename(LPMONIKER)
 106 {
 107     // handled by default inprocess handler
 108 }
 109
 110 STDMETHODIMP_(void) OleWrapperAdviseSink::OnSave(void)
 111 {
 112     // TODO: ???
 113     // The object knows about document saving already since it contolls it as ClienSite
 114     // other interested listeners must be registered for the object
 115 }
 116
 117 STDMETHODIMP_(void) OleWrapperAdviseSink::OnClose(void)
 118 {
 119     ::rtl::Reference< OleComponent > xLockComponent;
 120
 121     {
 122         osl::MutexGuard aGuard( m_aMutex );
 123         if ( m_pOleComp )
 124             xLockComponent = m_pOleComp;
 125     }
 126
 127     if ( xLockComponent.is() )
 128         xLockComponent->OnClose_Impl();
 129
 130     // TODO: sometimes it can be necessary to simulate OnShowWindow( False ) here
 131 }
 132
 133 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */