embeddedobj/source/msole/advisesink.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_embeddedobj.hxx"
  33
  34 #include <osl/diagnose.h>
  35 #include <advisesink.hxx>
  36 #include <olecomponent.hxx>
  37
  38 #include <rtl/ref.hxx>
  39
  40 OleWrapperAdviseSink::OleWrapperAdviseSink( OleComponent* pOleComp )
  41 : m_nRefCount( 0 )
  42 , m_pOleComp( pOleComp )
  43 {
  44     OSL_ENSURE( m_pOleComp, "No ole component is provided!\n" );
  45 }
  46
  47 OleWrapperAdviseSink::~OleWrapperAdviseSink()
  48 {
  49 }
  50
  51 STDMETHODIMP OleWrapperAdviseSink::QueryInterface( REFIID riid , void** ppv )
  52 {
  53     *ppv=NULL;
  54
  55     if ( riid == IID_IUnknown )
  56         *ppv = (IUnknown*)this;
  57
  58     if ( riid == IID_IAdviseSink )
  59         *ppv = (IAdviseSink*)this;
  60
  61     if ( *ppv != NULL )
  62     {
  63         ((IUnknown*)*ppv)->AddRef();
  64         return S_OK;
  65     }
  66
  67     return E_NOINTERFACE;
  68 }
  69
  70 STDMETHODIMP_(ULONG) OleWrapperAdviseSink::AddRef()
  71 {
  72     return osl_incrementInterlockedCount( &m_nRefCount);
  73 }
  74
  75 STDMETHODIMP_(ULONG) OleWrapperAdviseSink::Release()
  76 {
  77     ULONG nReturn = --m_nRefCount;
  78     if ( m_nRefCount == 0 )
  79         delete this;
  80
  81     return nReturn;
  82 }
  83
  84 void OleWrapperAdviseSink::disconnectOleComponent()
  85 {
  86     // must not be called from the descructor of OleComponent!!!
  87     osl::MutexGuard aGuard( m_aMutex );
  88     m_pOleComp = NULL;
  89 }
  90
  91 STDMETHODIMP_(void) OleWrapperAdviseSink::OnDataChange(LPFORMATETC, LPSTGMEDIUM)
  92 {
  93     // Unused for now ( no registration for IDataObject events )
  94 }
  95
  96 STDMETHODIMP_(void) OleWrapperAdviseSink::OnViewChange(DWORD dwAspect, LONG)
  97 {
  98     ::rtl::Reference< OleComponent > xLockComponent;
  99
 100     {
 101         osl::MutexGuard aGuard( m_aMutex );
 102         if ( m_pOleComp )
 103             xLockComponent = m_pOleComp;
 104     }
 105
 106     if ( xLockComponent.is() )
 107         xLockComponent->OnViewChange_Impl( dwAspect );
 108 }
 109
 110 STDMETHODIMP_(void) OleWrapperAdviseSink::OnRename(LPMONIKER)
 111 {
 112     // handled by default inprocess handler
 113 }
 114
 115 STDMETHODIMP_(void) OleWrapperAdviseSink::OnSave(void)
 116 {
 117     // TODO: ???
 118     // The object knows about document saving already since it contolls it as ClienSite
 119     // other interested listeners must be registered for the object
 120 }
 121
 122 STDMETHODIMP_(void) OleWrapperAdviseSink::OnClose(void)
 123 {
 124     ::rtl::Reference< OleComponent > xLockComponent;
 125
 126     {
 127         osl::MutexGuard aGuard( m_aMutex );
 128         if ( m_pOleComp )
 129             xLockComponent = m_pOleComp;
 130     }
 131
 132     if ( xLockComponent.is() )
 133         xLockComponent->OnClose_Impl();
 134
 135     // TODO: sometimes it can be necessary to simulate OnShowWindow( False ) here
 136 }
 137