windows-nt/Source/XPSP1/NT/shell/ext/dsui/dsuiext/tab.cpp
2020-09-26 16:20:57 +08:00

389 lines
13 KiB
C++

#include "pch.h"
#pragma hdrstop
/*-----------------------------------------------------------------------------
/ Misc data
/----------------------------------------------------------------------------*/
static UINT g_cfDsPropPageInfo = 0;
#define PATH_IS TEXT("?path=")
#define PROPERTY_PAGES_ROOT TEXT("PropertyPagesRoot")
class CDsPropPageDataObject : public IDataObject
{
private:
LONG _cRef;
IDataObject* _pDataObject;
LPWSTR _pParameters;
public:
CDsPropPageDataObject(IDataObject* pDataObject, LPWSTR pParameters);
~CDsPropPageDataObject();
// IUnknown
STDMETHOD(QueryInterface)(REFIID riid, LPVOID* ppvObject);
STDMETHOD_(ULONG, AddRef)();
STDMETHOD_(ULONG, Release)();
// IDataObject
STDMETHODIMP GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium);
STDMETHODIMP GetDataHere(FORMATETC *pformatetc, STGMEDIUM *pmedium)
{ return _pDataObject->GetDataHere(pformatetc, pmedium); }
STDMETHODIMP QueryGetData(FORMATETC *pformatetc)
{ return _pDataObject->QueryGetData(pformatetc); }
STDMETHODIMP GetCanonicalFormatEtc(FORMATETC *pformatectIn, FORMATETC *pformatetcOut)
{ return _pDataObject->GetCanonicalFormatEtc(pformatectIn, pformatetcOut); }
STDMETHODIMP SetData(FORMATETC *pformatetc, STGMEDIUM *pmedium, BOOL fRelease)
{ return _pDataObject->SetData(pformatetc, pmedium, fRelease); }
STDMETHODIMP EnumFormatEtc(DWORD dwDirection, IEnumFORMATETC **ppenumFormatEtc)
{ return _pDataObject->EnumFormatEtc(dwDirection, ppenumFormatEtc); }
STDMETHODIMP DAdvise(FORMATETC *pformatetc, DWORD advf, IAdviseSink *pAdvSink, DWORD *pdwConnection)
{ return _pDataObject->DAdvise(pformatetc, advf, pAdvSink, pdwConnection); }
STDMETHODIMP DUnadvise(DWORD dwConnection)
{ return _pDataObject->DUnadvise(dwConnection); }
STDMETHODIMP EnumDAdvise(IEnumSTATDATA **ppenumAdvise)
{ return _pDataObject->EnumDAdvise(ppenumAdvise); }
};
/*-----------------------------------------------------------------------------
/ Tab Collector bits
/----------------------------------------------------------------------------*/
/*-----------------------------------------------------------------------------
/ TabCollector_AddPages
/ ---------------------
/ Given a string that represents a page reference add the pages required
/ to support that reference
/
/ In:
/ pPageReference -> string reperesenting the page
/ pDsObjectName -> ADs path of object
/ pDataObject -> data object interface for the Win32 extensions
/ lpfnAddPage, lParam => parameters used for adding each page
/
/ Out:
/ HRESULT
/----------------------------------------------------------------------------*/
HRESULT TabCollector_AddPages(LPWSTR pPageReference, LPWSTR pDsObjectName,
IUnknown* punkSite, IDataObject* pDataObject,
LPFNADDPROPSHEETPAGE pAddPageProc, LPARAM lParam)
{
HRESULT hres;
HPROPSHEETPAGE hPage;
IUnknown* pUnknown = NULL;
IShellExtInit* pShellExtInit = NULL;
IShellPropSheetExt* pShellPropSheetExt = NULL;
IObjectWithSite *pows = NULL;
WCHAR szBuffer[MAX_PATH];
WCHAR szGUID[MAX_PATH];
WCHAR szURL[INTERNET_MAX_URL_LENGTH];
LPTSTR pAbsoluteURL = NULL;
USES_CONVERSION;
GUID guid;
TraceEnter(TRACE_TABS, "TabCollector_AddPages");
Trace(TEXT("Page reference is %s"), W2T(pPageReference));
// The name is either a CLSID, or a URL description. Therefore lets try and
// parse it as a GUID, if that fails then we can just attempt to break out the
// other components.
if ( SUCCEEDED(GetStringElementW(pPageReference, 0, szGUID, ARRAYSIZE(szGUID))) &&
GetGUIDFromStringW(pPageReference, &guid) )
{
if ( SUCCEEDED(CoCreateInstance(guid, NULL, CLSCTX_INPROC_SERVER, IID_IUnknown, (LPVOID*)&pUnknown)) )
{
// We have found the object, lets try and initialize it passing it the data
// object we have, if that fails then we ignore this entry.
if ( punkSite && SUCCEEDED(pUnknown->QueryInterface(IID_IObjectWithSite, (void **)&pows)) )
{
hres = pows->SetSite(punkSite);
FailGracefully(hres, "Failed when setting site on the object");
}
if ( SUCCEEDED(pUnknown->QueryInterface(IID_IShellExtInit, (LPVOID*)&pShellExtInit)) )
{
if ( SUCCEEDED(GetStringElementW(pPageReference, 1, szBuffer, ARRAYSIZE(szBuffer))) && szBuffer[0] )
{
CDsPropPageDataObject* pDsPropPageDataObject = new CDsPropPageDataObject(pDataObject, szBuffer);
TraceAssert(pDsPropPageDataObject);
if ( !pDsPropPageDataObject )
ExitGracefully(hres, E_OUTOFMEMORY, "Failed to allocate IDataObject wrapper");
Trace(TEXT("IDsPropPageDataObject constructed with: %s"), szBuffer);
hres = pShellExtInit->Initialize(NULL, pDsPropPageDataObject, NULL);
pDsPropPageDataObject->Release();
}
else
{
TraceMsg("No extra parameters for property page, invoking with original IDataObject");
hres = pShellExtInit->Initialize(NULL, pDataObject, NULL);
}
DoRelease(pShellExtInit);
if ( FAILED(hres) )
ExitGracefully(hres, S_OK, "Failed to Initialize the Win32 extension - PAGE IGNORED");
}
// We have tried to Initialize the object, so lets get it to add the pages if it
// supports the IShellPropSheetExt interface.
if ( SUCCEEDED(pUnknown->QueryInterface(IID_IShellPropSheetExt, (LPVOID*)&pShellPropSheetExt)) )
{
hres = pShellPropSheetExt->AddPages(pAddPageProc, lParam);
DoRelease(pShellPropSheetExt);
if (hres == HRESULT_FROM_WIN32(ERROR_BAD_NET_RESP))
FailGracefully(hres, "Cannot talk to the DC");
}
}
else
{
TraceGUID("Failed to CoCreateInstance ", guid);
}
}
else
{
ExitGracefully(hres, E_NOTIMPL, "HTML property pages are not supported");
}
hres = S_OK; // success
exit_gracefully:
LocalFreeString(&pAbsoluteURL);
DoRelease(pUnknown);
DoRelease(pows);
DoRelease(pShellExtInit);
DoRelease(pShellPropSheetExt);
TraceLeaveResult(hres);
}
/*-----------------------------------------------------------------------------
/ TabCollector_Collect
/ --------------------
/ Given the IDataObject interface and a callback function add the
/ pages that represent that object class.
/
/ In:
/ pDataObject -> data object interface that we can query for the object names
/ lpfnAddPage, lParam => parameters used for adding each page
/
/ Out:
/ HRESULT
/----------------------------------------------------------------------------*/
HRESULT TabCollector_Collect(IUnknown *punkSite, IDataObject* pDataObject, LPFNADDPROPSHEETPAGE pAddPageProc, LPARAM lParam)
{
HRESULT hres;
STGMEDIUM medium = { TYMED_NULL };
FORMATETC fmte = {g_cfDsObjectNames, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
LPDSOBJECTNAMES pDsObjectNames;
LPWSTR pPath;
LPWSTR pObjectClass;
CLASSCACHEGETINFO ccgi = { 0 };
LPCLASSCACHEENTRY pCacheEntry = NULL;
USES_CONVERSION;
INT i;
HDPA hdpa = NULL;
TraceEnter(TRACE_TABS, "TabCollector_Collect");
if ( !pDataObject || !pAddPageProc )
ExitGracefully(hres, E_INVALIDARG, "pDataObject || pAddPageProc == NULL");
// From the IDataObject we must attempt to get the DSOBJECTNAMES structure
// that defines the objects we are being invoked on. If we cannot get that
// format, or the structure doesn't contain enough entries then bail out.
hres = pDataObject->GetData(&fmte, &medium);
FailGracefully(hres, "Failed to GetData using CF_DSOBJECTNAMES");
pDsObjectNames = (LPDSOBJECTNAMES)medium.hGlobal;
if ( pDsObjectNames->cItems < 1 )
ExitGracefully(hres, E_FAIL, "Not enough objects in DSOBJECTNAMES structure");
pPath = (LPWSTR)ByteOffset(pDsObjectNames, pDsObjectNames->aObjects[0].offsetName);
pObjectClass = (LPWSTR)ByteOffset(pDsObjectNames, pDsObjectNames->aObjects[0].offsetClass);
// fill the CLASSCACHEGETINFO record so we can cache the information from the
// display specifiers.
ccgi.dwFlags = CLASSCACHE_PROPPAGES;
ccgi.pPath = pPath;
ccgi.pObjectClass = pObjectClass;
ccgi.pDataObject = pDataObject;
hres = GetServerAndCredentails(&ccgi);
FailGracefully(hres, "Failed to get the server name");
hres = GetAttributePrefix(&ccgi.pAttributePrefix, pDataObject);
FailGracefully(hres, "Failed to get attributePrefix");
Trace(TEXT("Class: %s; Attribute Prefix: %s; Server: %s"),
W2T(pObjectClass), W2T(ccgi.pAttributePrefix), ccgi.pServer ? W2T(ccgi.pServer):TEXT("<none>"));
hres = ClassCache_GetClassInfo(&ccgi, &pCacheEntry);
FailGracefully(hres, "Failed to get page list (via the cache)");
// Just keep what is needed and then release the cache
if ( (pCacheEntry->dwCached & CLASSCACHE_PROPPAGES) && pCacheEntry->hdsaPropertyPages )
{
hdpa = DPA_Create(16); // grow size
if ( !hdpa )
ExitGracefully(hres, E_OUTOFMEMORY, "Failed to create DPA");
for ( i = 0 ; i < DSA_GetItemCount(pCacheEntry->hdsaPropertyPages); i++ )
{
LPDSPROPERTYPAGE pPage =(LPDSPROPERTYPAGE)DSA_GetItemPtr(pCacheEntry->hdsaPropertyPages, i);
TraceAssert(pPage);
hres = StringDPA_AppendStringW(hdpa, pPage->pPageReference, NULL);
FailGracefully(hres, "Failed to append the string");
}
}
ClassCache_ReleaseClassInfo(&pCacheEntry);
if (NULL != hdpa)
{
for ( i = 0 ; i < DPA_GetPtrCount(hdpa); i++ )
{
LPCWSTR pwszPageRef = StringDPA_GetStringW(hdpa, i);
hres = TabCollector_AddPages(const_cast<LPWSTR>(pwszPageRef),
pPath,
punkSite,
pDataObject,
pAddPageProc,
lParam);
FailGracefully(hres, "Failed to add page to the list");
}
}
hres = S_OK;
exit_gracefully:
StringDPA_Destroy(&hdpa);
ClassCache_ReleaseClassInfo(&pCacheEntry);
ReleaseStgMedium(&medium);
LocalFreeStringW(&ccgi.pAttributePrefix);
LocalFreeStringW(&ccgi.pUserName);
LocalFreeStringW(&ccgi.pPassword);
LocalFreeStringW(&ccgi.pServer);
TraceLeaveResult(hres);
}
/*-----------------------------------------------------------------------------
/ CDsPropPageDataObject
/----------------------------------------------------------------------------*/
CDsPropPageDataObject::CDsPropPageDataObject(IDataObject* pDataObject, LPWSTR pParameters) :
_cRef(1)
{
_pDataObject = pDataObject;
_pDataObject->AddRef();
LocalAllocStringW(&_pParameters, pParameters);
DllAddRef();
}
CDsPropPageDataObject::~CDsPropPageDataObject()
{
DoRelease(_pDataObject);
LocalFreeStringW(&_pParameters);
DllRelease();
}
// IUnknown
ULONG CDsPropPageDataObject::AddRef()
{
return InterlockedIncrement(&_cRef);
}
ULONG CDsPropPageDataObject::Release()
{
if (InterlockedDecrement(&_cRef))
return _cRef;
delete this;
return 0;
}
HRESULT CDsPropPageDataObject::QueryInterface(REFIID riid, void **ppv)
{
static const QITAB qit[] =
{
QITABENT(CDsPropPageDataObject, IDataObject), // IID_IDataObject
{0, 0 },
};
return QISearch(this, qit, riid, ppv);
}
// IDataObject methods
STDMETHODIMP CDsPropPageDataObject::GetData(FORMATETC* pFmt, STGMEDIUM* pMedium)
{
HRESULT hres;
TraceEnter(TRACE_TABS, "CDsPropPageDataObject::GetData");
if ( !pFmt || !pMedium )
ExitGracefully(hres, E_INVALIDARG, "Bad arguments to GetData");
// if its not our clipboard format, or there are no parameters
// then we call the original handler, otherwise we add our stuff
if ( !g_cfDsPropPageInfo )
{
g_cfDsPropPageInfo = RegisterClipboardFormat(CFSTR_DSPROPERTYPAGEINFO);
TraceAssert(g_cfDsPropPageInfo);
}
if ( (pFmt->cfFormat == g_cfDsPropPageInfo) && _pParameters )
{
LPDSPROPERTYPAGEINFO pPropPageInfo;
DWORD cbSize = SIZEOF(LPDSPROPERTYPAGEINFO)+StringByteSizeW(_pParameters);
// allocate a structure that contains the propage page information
// we were initialized with
Trace(TEXT("Property page parameter: %s"), _pParameters);
Trace(TEXT("Size of structure for DSPROPPAGEINFO %d"), cbSize);
hres = AllocStorageMedium(pFmt, pMedium, cbSize, (LPVOID*)&pPropPageInfo);
FailGracefully(hres, "Failed to allocate the storage medium");
pPropPageInfo->offsetString = SIZEOF(DSPROPERTYPAGEINFO);
StringByteCopyW(pPropPageInfo, pPropPageInfo->offsetString, _pParameters);
hres = S_OK; // success
}
else
{
hres = _pDataObject->GetData(pFmt, pMedium);
FailGracefully(hres, "Failed when calling real IDataObject");
}
exit_gracefully:
TraceLeaveResult(hres);
}