embeddedobj/source/msole/olewrapclient.cxx

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  28
  29 #include <osl/diagnose.h>
  30
  31 #include "olewrapclient.hxx"
  32 #include "olecomponent.hxx"
  33
  34 // TODO: May be a mutex must be introduced
  35
  36 OleWrapperClientSite::OleWrapperClientSite( OleComponent* pOleComp )
  37 : m_nRefCount( 0 )
  38 , m_pOleComp( pOleComp )
  39 {
  40     OSL_ENSURE( m_pOleComp, "No ole component is provided!\n" );
  41 }
  42
  43 OleWrapperClientSite::~OleWrapperClientSite()
  44 {
  45 }
  46
  47 STDMETHODIMP OleWrapperClientSite::QueryInterface( REFIID riid , void** ppv )
  48 {
  49     *ppv=NULL;
  50
  51     if ( riid == IID_IUnknown )
  52         *ppv = (IUnknown*)this;
  53
  54     if ( riid == IID_IOleClientSite )
  55         *ppv = (IOleClientSite*)this;
  56
  57     if ( *ppv != NULL )
  58     {
  59         ((IUnknown*)*ppv)->AddRef();
  60         return S_OK;
  61     }
  62
  63     return E_NOINTERFACE;
  64 }
  65
  66 STDMETHODIMP_(ULONG) OleWrapperClientSite::AddRef()
  67 {
  68     return osl_incrementInterlockedCount( &m_nRefCount);
  69 }
  70
  71 STDMETHODIMP_(ULONG) OleWrapperClientSite::Release()
  72 {
  73     ULONG nReturn = --m_nRefCount;
  74     if ( m_nRefCount == 0 )
  75         delete this;
  76
  77     return nReturn;
  78 }
  79
  80 void OleWrapperClientSite::disconnectOleComponent()
  81 {
  82     // must not be called from the descructor of OleComponent!!!
  83     osl::MutexGuard aGuard( m_aMutex );
  84     m_pOleComp = NULL;
  85 }
  86
  87 STDMETHODIMP OleWrapperClientSite::SaveObject()
  88 {
  89     OleComponent* pLockComponent = NULL;
  90     HRESULT hResult = E_FAIL;
  91
  92     {
  93         osl::MutexGuard aGuard( m_aMutex );
  94         if ( m_pOleComp )
  95         {
  96             pLockComponent = m_pOleComp;
  97             pLockComponent->acquire();
  98         }
  99     }
 100
 101     if ( pLockComponent )
 102     {
 103         if ( pLockComponent->SaveObject_Impl() )
 104             hResult = S_OK;
 105
 106         pLockComponent->release();
 107     }
 108
 109     return hResult;
 110 }
 111
 112 STDMETHODIMP OleWrapperClientSite::GetMoniker( DWORD, DWORD, LPMONIKER *ppmk )
 113 {
 114     *ppmk = NULL;
 115     return E_NOTIMPL;
 116 }
 117
 118 STDMETHODIMP OleWrapperClientSite::GetContainer( LPOLECONTAINER* ppContainer )
 119 {
 120     *ppContainer = NULL;
 121     return E_NOTIMPL;
 122 }
 123
 124 STDMETHODIMP OleWrapperClientSite::ShowObject(void)
 125 {
 126     return S_OK;
 127 }
 128
 129 STDMETHODIMP OleWrapperClientSite::OnShowWindow( BOOL bShow )
 130 {
 131     OleComponent* pLockComponent = NULL;
 132
 133     // TODO/LATER: redirect the notification to the main thread so that SolarMutex can be locked
 134     {
 135         osl::MutexGuard aGuard( m_aMutex );
 136         if ( m_pOleComp )
 137         {
 138             pLockComponent = m_pOleComp;
 139             pLockComponent->acquire();
 140         }
 141     }
 142
 143     if ( pLockComponent )
 144     {
 145         pLockComponent->OnShowWindow_Impl( bShow ); // the result is not interesting
 146         pLockComponent->release();
 147     }
 148
 149     return S_OK;
 150 }
 151
 152 STDMETHODIMP OleWrapperClientSite::RequestNewObjectLayout(void)
 153 {
 154     return E_NOTIMPL;
 155 }
 156
 157 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */