142 lines
3.6 KiB
C++
142 lines
3.6 KiB
C++
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#include "priv.h"
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#include "dochost.h"
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#define DM_CACHEOLESERVER DM_TRACE
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#define HACK_CACHE_OBJECT_TOO
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// #define HACK_LOCKRUNNING_TOO
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class CClassHolder : IUnknown
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{
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protected:
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// *** IUnknown methods ***
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virtual STDMETHODIMP QueryInterface(REFIID riid, LPVOID * ppvObj);
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virtual STDMETHODIMP_(ULONG) AddRef(void) ;
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virtual STDMETHODIMP_(ULONG) Release(void);
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friend IUnknown* ClassHolder_Create(const CLSID* pclsid);
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CClassHolder(const CLSID* pclsid);
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~CClassHolder();
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UINT _cRef;
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IClassFactory* _pcf;
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DWORD _dwAppHack;
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#ifdef HACK_CACHE_OBJECT_TOO
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IUnknown* _punk;
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#ifdef HACK_LOCKRUNNING_TOO
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IRunnableObject* _pro;
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#endif
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#endif // HACK_CACHE_OBJECT_TOO
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};
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HRESULT CClassHolder::QueryInterface(REFIID riid, LPVOID * ppvObj)
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{
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static const QITAB qit[] = {
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QITABENTMULTI(CClassHolder, IDiscardableBrowserProperty, IUnknown),
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{ 0 },
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};
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return QISearch(this, qit, riid, ppvObj);
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}
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ULONG CClassHolder::AddRef()
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{
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_cRef++;
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return _cRef;
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}
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ULONG CClassHolder::Release()
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{
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_cRef--;
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if (_cRef > 0)
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return _cRef;
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delete this;
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return 0;
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}
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CClassHolder::CClassHolder(const CLSID* pclsid) : _cRef(1)
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{
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HRESULT hres;
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hres = CoGetClassObject(*pclsid, CLSCTX_INPROC_SERVER | CLSCTX_LOCAL_SERVER,
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0, IID_IClassFactory, (LPVOID*)&_pcf);
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TraceMsg(DM_CACHEOLESERVER, "CCH::CCH Just called CoGetClassObject %x", hres);
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if (SUCCEEDED(hres)) {
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::GetAppHackFlags(NULL, pclsid, &_dwAppHack);
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_pcf->LockServer(TRUE);
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#ifdef HACK_CACHE_OBJECT_TOO
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hres = _pcf->CreateInstance(NULL, IID_IUnknown, (LPVOID*)&_punk);
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if ((_dwAppHack & BROWSERFLAG_INITNEWTOKEEP) && SUCCEEDED(hres)) {
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TraceMsg(TF_SHDAPPHACK, "CCH::CCH hack for Excel. Call InitNew to keep it running");
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//
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// This InitNew keeps Excel running
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//
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IPersistStorage* pps;
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HRESULT hresT;
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hresT = _punk->QueryInterface(IID_IPersistStorage, (LPVOID*)&pps);
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if (SUCCEEDED(hresT)) {
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IStorage* pstg;
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hresT = StgCreateDocfile(NULL,
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STGM_DIRECT | STGM_CREATE | STGM_READWRITE
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| STGM_SHARE_EXCLUSIVE | STGM_DELETEONRELEASE,
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0, &pstg);
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if (SUCCEEDED(hresT)) {
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TraceMsg(DM_TRACE, "CCLH::ctor calling InitNew()");
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pps->InitNew(pstg);
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pstg->Release();
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} else {
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TraceMsg(DM_TRACE, "CCLH::ctor StgCreateDocfile failed %x", hresT);
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}
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pps->Release();
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} else {
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TraceMsg(DM_TRACE, "CCLH::ctor QI to IPersistStorage failed %x", hresT);
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}
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#ifdef HACK_LOCKRUNNING_TOO
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hres = _punk->QueryInterface(IID_IRunnableObject, (LPVOID*)&_pro);
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if (SUCCEEDED(hres)) {
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TraceMsg(DM_CACHEOLESERVER, "CCH::CCH This is runnable. Keep it running %x", _pro);
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OleRun(_pro);
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OleLockRunning(_pro, TRUE, TRUE);
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}
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#endif
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}
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#endif
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}
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}
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CClassHolder::~CClassHolder()
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{
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if (_pcf) {
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#ifdef HACK_CACHE_OBJECT_TOO
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if (_punk) {
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#ifdef HACK_LOCKRUNNING_TOO
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if (_pro) {
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OleLockRunning(_pro, FALSE, TRUE);
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_pro->Release();
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}
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#endif
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_punk->Release();
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}
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#endif
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_pcf->LockServer(FALSE);
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ATOMICRELEASE(_pcf);
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}
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}
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IUnknown* ClassHolder_Create(const CLSID* pclsid)
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{
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return new CClassHolder(pclsid);
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}
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