TeslaRel410/BORLAND/BC45/SOURCE/OCF/BOCOLE/BOLECONT.CPP

//
//**************************************************************************
//
// BOleCont.cpp -- Implements the server helper for documents by masquerading
//                 as the container object. Provides plumbing for server
//                 linking to documents and items
//
// Copyright (c) 1993,94 by Borland International, Inc. All rights reserved
//
//**************************************************************************

#include "BOleCont.h"
#include "BOleFact.h"
#include "BOleCMan.h"
#include "BOlePart.h"	// for link or embed to embedding

HRESULT _IFUNC BOleContainer::QueryInterfaceMain(REFIID iid, LPVOID FAR *ppv)
{
	HRESULT hr = ResultFromScode(E_NOINTERFACE);
	*ppv = NULL;

	// interfaces

	   SUCCEEDED(hr = IBRootLinkable_QueryInterface(this, iid, ppv))
	|| SUCCEEDED(hr = IPersistFile_QueryInterface(this, iid, ppv))
	|| SUCCEEDED(hr = IOleItemContainer_QueryInterface(this, iid, ppv))
//
	// base classes

	|| SUCCEEDED(hr = BOleComponent::QueryInterfaceMain(iid, ppv))

	// helpers
	;
	return hr;
};

BOleContainer::BOleContainer (BOleClassManager *pF, IBUnknownMain * pObj) :
	BOleComponent(pF, pObj)
{
	pDoc = NULL;
	regId = 0L;
	pMoniker = NULL;
	pClassFact = NULLP;
}

BOleContainer::~BOleContainer ()
{
	if (pClassFact) {
		pClassFact->Release ();
		pClassFact = NULL;
	}
}

/**************************************************************************/
// IOleItemContainer
/**************************************************************************/

HRESULT _IFUNC BOleContainer::GetClassID (LPCLSID lpClassID)
{
	HRESULT hrErr = ResultFromScode (E_FAIL);
	// outer could have called IRootLinkable::Init.
	if (lpClassID && pClassFact) {
		hrErr = pClassFact->GetClassID(lpClassID);
	}
	else {
		// this is sometimes called for documents not attached to servers!
		*lpClassID = CLSID_NULL;
	}
	return hrErr;
}

HRESULT _IFUNC BOleContainer::IsDirty ()
{
	HRESULT hrErr = ResultFromScode (S_OK);

	//
	
	return hrErr;
}

#define OLE_MAXNAMESIZE     (256)

HRESULT _IFUNC BOleContainer::ParseDisplayName (IBindCtx *pbc, LPOLESTR pszDisplayName, 
                                                ULONG FAR* pchEaten, IMoniker* FAR* ppmk)
{
	*ppmk = NULL;

	OLECHAR szItemName[OLE_MAXNAMESIZE];
	OLECHAR *pszDest = szItemName;
	LPCTSTR pszSrc = pszDisplayName;

	// skip leading delimiters
	int cEaten = 0;
	while (*pszSrc != '\0' && (*pszSrc == '\\' || *pszSrc == '/' ||
		*pszSrc == '!' || *pszSrc == '['))
	{
		++pszSrc;
		++cEaten;
	}

	// parse next token into szItemName
	while (*pszSrc != '\0' && *pszSrc != '\\' && *pszSrc != '/' &&
		*pszSrc != '!' && *pszSrc != '[' &&	cEaten < OLE_MAXNAMESIZE-1)
	{
		*pszDest++ = *pszSrc++;
		++cEaten;
	}
	*pchEaten = cEaten;
	*pszDest = 0;

	// attempt to get the object
	LPUNKNOWN pUnknown;
	HRESULT hr = GetObject(szItemName, BINDSPEED_INDEFINITE, pbc,
		IID_IUnknown, &(LPVOID)pUnknown);
	if (SUCCEEDED(hr))	{
		pUnknown->Release();
		// item name found -- create item moniker for it
		return ::CreateItemMoniker(OLESTDDELIM, szItemName, ppmk);
	}
	else {
		return hr;
	}
}


HRESULT _IFUNC BOleContainer::EnumObjects (DWORD, IEnumUnknown* FAR* ppenumUnknown)
{
	HRESULT hrErr = ResultFromScode(E_NOTIMPL);
	*ppenumUnknown = NULLP;
	return hrErr;
}

HRESULT _IFUNC BOleContainer::LockContainer (BOOL fLock)
{
	//  Keep app from closing
	//
	pFactory->ServerCount(fLock ? +1 : -1);
	//	Lock external, but pass FALSE as last arg, so in-proc "self" linking
	//  work (otherwise, Close gets called).
	//

	//
	//
	//
	//
	if (fLock)
		AddRef();
	else
		Release();
	
	return NOERROR;

//
}

HRESULT _IFUNC BOleContainer::GetObject (LPOLESTR lpszItem,
	DWORD  dwSpeedNeeded, IBindCtx* pbc, REFIID riid, LPVOID FAR* ppvObject)
{
	HRESULT hrErr = ResultFromScode(MK_E_NOOBJECT);
	*ppvObject = NULL;
	PIBPart pPart;
	if (SUCCEEDED(pDoc->GetPart(& pPart, lpszItem))) {
		// bind speed always INDEFINITE? p.803
		IUnknown *pUnk = pPart;
		BOleSite *pBOleSite;
		BOlePart *pBOlePart;
		if (SUCCEEDED(pUnk->QueryInterface(IID_BOlePart, &(LPVOID)pBOlePart))) {
			// Link to embedding case give the real IOleObject
			//
			if (pBOlePart->pOleObject) {
				pUnk = pBOlePart->pOleObject;
			}
			// Links to items need to maintain locks on their document
			// or the ProxyManager gets hosed.
			// When the BOlePart goes away it unlocks this.
			//
			if (!pBOlePart->pDocument)	// only ONCE
				pBOlePart->pDocument = AsPIUnknown(pObjOuter);
			CoLockObjectExternal(AsPIUnknown(pObjOuter), TRUE, TRUE);
			pBOlePart->Release();
		}
		else if (SUCCEEDED(pUnk->QueryInterface(IID_BOleSite, &(LPVOID)pBOleSite))) {
			// Links to items need maintain locks on their documents
			// or the ProxyManager gets hosed.
			// When the BOleSite goes away it unlocks this.
			// 
			if (!pBOleSite->pDocument)	// only ONCE
				pBOleSite->pDocument = AsPIUnknown(pObjOuter);
			pBOleSite->pDocument = AsPIUnknown(pObjOuter);
			CoLockObjectExternal(AsPIUnknown(pObjOuter), TRUE, TRUE);
			pBOleSite->Release();
		}
		if (SUCCEEDED(hrErr=OleRun(pUnk))) {
			hrErr = pUnk->QueryInterface( riid, ppvObject);
		}
		pPart->Release();
		pPart = NULL;
		}
	return hrErr;
}

HRESULT _IFUNC BOleContainer::GetObjectStorage (LPOLESTR lpszItem, IBindCtx* pbc, REFIID riid, LPVOID FAR* ppvStorage)
{
	*ppvStorage = NULL;

	if (riid != IID_IStorage)
		return ResultFromScode(E_UNEXPECTED);

	// could get part and ask for BOlePart or BOleSite
	// and get the pStorage out of there
	// noone calls this
	
	return ResultFromScode(MK_E_NOSTORAGE);
}

HRESULT _IFUNC BOleContainer::IsRunning (LPOLESTR lpszItem)
{
	HRESULT hrErr = ResultFromScode(MK_E_NOOBJECT);
	IOleObject *pOleObj = NULL;
	PIBPart pPart;
	if (SUCCEEDED(pDoc->GetPart(&pPart, lpszItem))) {

		IUnknown *pUnk = pPart;
		// check for link to embedding case!
		// if so, get the IOleObject out of the Bolero helper and use that!
		BOlePart *pBOlePart;
		if (SUCCEEDED(pUnk->QueryInterface(IID_BOlePart, &(LPVOID)pBOlePart))) {
			if (pBOlePart->pOleObject) {
				pUnk = pBOlePart->pOleObject;
			}
			pBOlePart->Release();
		}
		
		if (SUCCEEDED(pUnk->QueryInterface(IID_IOleObject,&(LPVOID)pOleObj))) {
			hrErr = OleIsRunning(pOleObj)
				? NOERROR
				: ResultFromScode(S_FALSE);
			pOleObj->Release();
			pOleObj = NULL;
		}
		pPart->Release();
	}
	return hrErr;
}

//**************************************************************************
//
// IPersistFile implementation
//
//**************************************************************************

HRESULT _IFUNC BOleContainer::Load (LPCOLESTR lpszFileName, DWORD grfMode)
{
	HRESULT hr = NOERROR;

	hr = pDoc->Init(lpszFileName);
	
	return hr;
}

HRESULT _IFUNC BOleContainer::Save (LPCOLESTR lpszFileName, BOOL fRemember)
{
	return ResultFromScode (E_NOTIMPL);
}

HRESULT _IFUNC BOleContainer::SaveCompleted (LPCOLESTR lpszFileName)
{
	return ResultFromScode (E_NOTIMPL);
}

HRESULT _IFUNC BOleContainer::GetCurFile (LPOLESTR FAR* lplpszFileName)
{
	return ResultFromScode (E_NOTIMPL);
}

HRESULT	_IFUNC BOleContainer::OnRename(PIBLinkable pContainer, LPCOLESTR pszName)
{
	HRESULT hr;
	LPMONIKER pMon;

	if (pszName)  {
		LPMONIKER pmkDoc = NULL;
		if (pContainer && SUCCEEDED(pContainer->GetMoniker(&pmkDoc))) {
			// intermediate moniker
			LPMONIKER pmkObj = NULL;
		
			if (SUCCEEDED(CreateItemMoniker(TEXT("!"), (LPOLESTR)pszName, &pmkObj))) {
				hr = CreateGenericComposite(pmkDoc, pmkObj, &pMon);
				pmkObj->Release();
			}
			pmkDoc->Release();
		}
		else {
			// root moniker
			hr = OLE::CreateFileMoniker ((LPOLESTR)pszName, &pMon);
		}
	}
	else 
		pMon = NULL;

	hr = SetMoniker (pMon);
	if (pMon)
		pMon->Release();

	return hr;
}

//**************************************************************************
//
// IBLinkable implementation
//
//**************************************************************************

HRESULT _IFUNC BOleContainer::Init( PIBContains pC, LPCOLESTR pszProgId)
{
	pDoc = pC;
	pFactory->GetService()->FindClassFactory( pszProgId, &pClassFact);
	return pClassFact ? NOERROR : ResultFromScode (E_FAIL);
}

HRESULT _IFUNC BOleContainer::SetMoniker(LPMONIKER pMon)
{
	HRESULT hr;
	// get the running object table
	LPRUNNINGOBJECTTABLE pROT = NULL;
	hr = OLE::GetRunningObjectTable (0, &pROT);
	if (SUCCEEDED(hr)) {
		// Register the new moniker BEFORE revoking the old moniker.
		// Otherwise the object's "StubManager" gets hosed.
		//
		DWORD oldRegId = regId;

		if (pMoniker) {
			pMoniker->Release();
			pMoniker = NULLP;
		}
		// Store the new moniker if any
		if (pMon) {
			pMoniker = pMon;
			pMoniker->AddRef();

			// Register in the running object table 
			//
			hr = pROT->Register (0, //ROTFLAGS_REGISTRATIONKEEPSALIVE,
				AsPIUnknown(pObjOuter), pMoniker, &regId);
		}
		else
			regId = 0L;

		// release any old monikers and running object table registration
		if (oldRegId != 0L) {
			pROT->Revoke(oldRegId);
			oldRegId = 0L;
		}
		pROT->Release();
	}
	return hr;
}

HRESULT _IFUNC BOleContainer::GetMoniker(LPMONIKER *ppMon)
{
	HRESULT hrErr = ResultFromScode (E_FAIL);
	if (pMoniker) {
		pMoniker->AddRef();
		*ppMon = pMoniker;
		hrErr = NOERROR;
	}
	else {
		// Must be a nested embedding. Ask the container for one.

		IOleObject *pOleObj;
		if (SUCCEEDED(QueryInterface(IID_IOleObject, &(LPVOID)pOleObj))) {
			hrErr = pOleObj->GetMoniker(OLEGETMONIKER_ONLYIFTHERE, OLEWHICHMK_OBJFULL, ppMon);
			pOleObj->Release();
		}
	}
	return hrErr;
}


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