AOO410/main/embeddedobj/source/msole/olewrapclient.cxx

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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
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 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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 * specific language governing permissions and limitations
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_embeddedobj.hxx"

#include <osl/diagnose.h>

#include "olewrapclient.hxx"
#include "olecomponent.hxx"

// TODO: May be a mutex must be introduced

OleWrapperClientSite::OleWrapperClientSite( OleComponent* pOleComp )
: m_nRefCount( 0 )
, m_pOleComp( pOleComp )
{
	OSL_ENSURE( m_pOleComp, "No ole component is provided!\n" );
}

OleWrapperClientSite::~OleWrapperClientSite()
{
}

STDMETHODIMP OleWrapperClientSite::QueryInterface( REFIID riid , void** ppv )
{
	*ppv=NULL;

	if ( riid == IID_IUnknown )
		*ppv = (IUnknown*)this;

	if ( riid == IID_IOleClientSite )
		*ppv = (IOleClientSite*)this;

	if ( *ppv != NULL )
	{
		((IUnknown*)*ppv)->AddRef();
		return S_OK;
	}

	return E_NOINTERFACE;
}

STDMETHODIMP_(ULONG) OleWrapperClientSite::AddRef()
{
	return osl_incrementInterlockedCount( &m_nRefCount);
}

STDMETHODIMP_(ULONG) OleWrapperClientSite::Release()
{
	ULONG nReturn = --m_nRefCount;
	if ( m_nRefCount == 0 )
		delete this;

    return nReturn;
}

void OleWrapperClientSite::disconnectOleComponent()
{
	// must not be called from the descructor of OleComponent!!!
	osl::MutexGuard aGuard( m_aMutex );
	m_pOleComp = NULL;
}

STDMETHODIMP OleWrapperClientSite::SaveObject()
{
	OleComponent* pLockComponent = NULL;
	HRESULT hResult = E_FAIL;

	{
		osl::MutexGuard aGuard( m_aMutex );
		if ( m_pOleComp )
		{
			pLockComponent = m_pOleComp;
			pLockComponent->acquire();
		}
	}

	if ( pLockComponent )
	{
		if ( pLockComponent->SaveObject_Impl() )
			hResult = S_OK;

		pLockComponent->release();
	}

	return hResult;
}

STDMETHODIMP OleWrapperClientSite::GetMoniker( DWORD, DWORD, LPMONIKER *ppmk )
{
	*ppmk = NULL;
	return E_NOTIMPL;
}

STDMETHODIMP OleWrapperClientSite::GetContainer( LPOLECONTAINER* ppContainer )
{
	*ppContainer = NULL;
	return E_NOTIMPL;
}

STDMETHODIMP OleWrapperClientSite::ShowObject(void)
{
	return S_OK;
}

STDMETHODIMP OleWrapperClientSite::OnShowWindow( BOOL bShow )
{
	OleComponent* pLockComponent = NULL;

	// TODO/LATER: redirect the notification to the main thread so that SolarMutex can be locked
	{
		osl::MutexGuard aGuard( m_aMutex );
		if ( m_pOleComp )
		{
			pLockComponent = m_pOleComp;
			pLockComponent->acquire();
		}
	}

	if ( pLockComponent )
	{
		pLockComponent->OnShowWindow_Impl( bShow ); // the result is not interesting
		pLockComponent->release();
	}

	return S_OK;
}

STDMETHODIMP OleWrapperClientSite::RequestNewObjectLayout(void)
{
	return E_NOTIMPL;
}