embeddedobj/source/msole/olewrapclient.cxx

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   9  * $RCSfile: olewrapclient.cxx,v $
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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
  36 #include "olewrapclient.hxx"
  37 #include "olecomponent.hxx"
  38
  39 // TODO: May be a mutex must be introduced
  40
  41 OleWrapperClientSite::OleWrapperClientSite( OleComponent* pOleComp )
  42 : m_nRefCount( 0 )
  43 , m_pOleComp( pOleComp )
  44 {
  45     OSL_ENSURE( m_pOleComp, "No ole component is provided!\n" );
  46 }
  47
  48 OleWrapperClientSite::~OleWrapperClientSite()
  49 {
  50 }
  51
  52 STDMETHODIMP OleWrapperClientSite::QueryInterface( REFIID riid , void** ppv )
  53 {
  54     *ppv=NULL;
  55
  56     if ( riid == IID_IUnknown )
  57         *ppv = (IUnknown*)this;
  58
  59     if ( riid == IID_IOleClientSite )
  60         *ppv = (IOleClientSite*)this;
  61
  62     if ( *ppv != NULL )
  63     {
  64         ((IUnknown*)*ppv)->AddRef();
  65         return S_OK;
  66     }
  67
  68     return E_NOINTERFACE;
  69 }
  70
  71 STDMETHODIMP_(ULONG) OleWrapperClientSite::AddRef()
  72 {
  73     return osl_incrementInterlockedCount( &m_nRefCount);
  74 }
  75
  76 STDMETHODIMP_(ULONG) OleWrapperClientSite::Release()
  77 {
  78     ULONG nReturn = --m_nRefCount;
  79     if ( m_nRefCount == 0 )
  80         delete this;
  81
  82     return nReturn;
  83 }
  84
  85 void OleWrapperClientSite::disconnectOleComponent()
  86 {
  87     // must not be called from the descructor of OleComponent!!!
  88     osl::MutexGuard aGuard( m_aMutex );
  89     m_pOleComp = NULL;
  90 }
  91
  92 STDMETHODIMP OleWrapperClientSite::SaveObject()
  93 {
  94     OleComponent* pLockComponent = NULL;
  95     HRESULT hResult = E_FAIL;
  96
  97     {
  98         osl::MutexGuard aGuard( m_aMutex );
  99         if ( m_pOleComp )
 100         {
 101             pLockComponent = m_pOleComp;
 102             pLockComponent->acquire();
 103         }
 104     }
 105
 106     if ( pLockComponent )
 107     {
 108         if ( pLockComponent->SaveObject_Impl() )
 109             hResult = S_OK;
 110
 111         pLockComponent->release();
 112     }
 113
 114     return hResult;
 115 }
 116
 117 STDMETHODIMP OleWrapperClientSite::GetMoniker( DWORD, DWORD, LPMONIKER *ppmk )
 118 {
 119     *ppmk = NULL;
 120     return E_NOTIMPL;
 121 }
 122
 123 STDMETHODIMP OleWrapperClientSite::GetContainer( LPOLECONTAINER* ppContainer )
 124 {
 125     *ppContainer = NULL;
 126     return E_NOTIMPL;
 127 }
 128
 129 STDMETHODIMP OleWrapperClientSite::ShowObject(void)
 130 {
 131     return S_OK;
 132 }
 133
 134 STDMETHODIMP OleWrapperClientSite::OnShowWindow( BOOL bShow )
 135 {
 136     OleComponent* pLockComponent = NULL;
 137
 138     // TODO/LATER: redirect the notification to the main thread so that SolarMutex can be locked
 139     {
 140         osl::MutexGuard aGuard( m_aMutex );
 141         if ( m_pOleComp )
 142         {
 143             pLockComponent = m_pOleComp;
 144             pLockComponent->acquire();
 145         }
 146     }
 147
 148     if ( pLockComponent )
 149     {
 150         pLockComponent->OnShowWindow_Impl( bShow ); // the result is not interesting
 151         pLockComponent->release();
 152     }
 153
 154     return S_OK;
 155 }
 156
 157 STDMETHODIMP OleWrapperClientSite::RequestNewObjectLayout(void)
 158 {
 159     return E_NOTIMPL;
 160 }
 161