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reactos/dll/win32/ole32/pointermoniker.c

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/*
* Pointer Moniker Implementation
*
* Copyright 1999 Noomen Hamza
* Copyright 2008 Robert Shearman (for CodeWeavers)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "precomp.h"
WINE_DEFAULT_DEBUG_CHANNEL(ole);
/* PointerMoniker data structure */
typedef struct PointerMonikerImpl{
IMoniker IMoniker_iface;
LONG ref; /* reference counter for this object */
IUnknown *pObject; /* custom marshaler */
} PointerMonikerImpl;
static inline PointerMonikerImpl *impl_from_IMoniker(IMoniker *iface)
{
return CONTAINING_RECORD(iface, PointerMonikerImpl, IMoniker_iface);
}
static HRESULT WINAPI
PointerMonikerImpl_QueryInterface(IMoniker* iface,REFIID riid,void** ppvObject)
{
PointerMonikerImpl *This = impl_from_IMoniker(iface);
TRACE("(%p,%s,%p)\n",This,debugstr_guid(riid),ppvObject);
/* Perform a sanity check on the parameters.*/
if ( (This==0) || (ppvObject==0) )
return E_INVALIDARG;
/* Initialize the return parameter */
*ppvObject = 0;
/* Compare the riid with the interface IDs implemented by this object.*/
if (IsEqualIID(&IID_IUnknown, riid) ||
IsEqualIID(&IID_IPersist, riid) ||
IsEqualIID(&IID_IPersistStream, riid) ||
IsEqualIID(&IID_IMoniker, riid))
*ppvObject = iface;
/* Check that we obtained an interface.*/
if ((*ppvObject)==0)
return E_NOINTERFACE;
/* always increase the reference count by one when it is successful */
IMoniker_AddRef(iface);
return S_OK;
}
/******************************************************************************
* PointerMoniker_AddRef
******************************************************************************/
static ULONG WINAPI
PointerMonikerImpl_AddRef(IMoniker* iface)
{
PointerMonikerImpl *This = impl_from_IMoniker(iface);
TRACE("(%p)\n",This);
return InterlockedIncrement(&This->ref);
}
/******************************************************************************
* PointerMoniker_Release
******************************************************************************/
static ULONG WINAPI
PointerMonikerImpl_Release(IMoniker* iface)
{
PointerMonikerImpl *This = impl_from_IMoniker(iface);
ULONG ref;
TRACE("(%p)\n",This);
ref = InterlockedDecrement(&This->ref);
/* destroy the object if there are no more references on it */
if (ref == 0)
{
if (This->pObject) IUnknown_Release(This->pObject);
HeapFree(GetProcessHeap(),0,This);
}
return ref;
}
/******************************************************************************
* PointerMoniker_GetClassID
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_GetClassID(IMoniker* iface,CLSID *pClassID)
{
TRACE("(%p,%p)\n",iface,pClassID);
if (pClassID==NULL)
return E_POINTER;
*pClassID = CLSID_PointerMoniker;
return S_OK;
}
/******************************************************************************
* PointerMoniker_IsDirty
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_IsDirty(IMoniker* iface)
{
/* Note that the OLE-provided implementations of the IPersistStream::IsDirty
method in the OLE-provided moniker interfaces always return S_FALSE because
their internal state never changes. */
TRACE("(%p)\n",iface);
return S_FALSE;
}
/******************************************************************************
* PointerMoniker_Load
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_Load(IMoniker* iface,IStream* pStm)
{
TRACE("(%p)\n", pStm);
return E_NOTIMPL;
}
/******************************************************************************
* PointerMoniker_Save
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_Save(IMoniker* iface, IStream* pStm, BOOL fClearDirty)
{
TRACE("(%p, %d)\n", pStm, fClearDirty);
return E_NOTIMPL;
}
/******************************************************************************
* PointerMoniker_GetSizeMax
*
* PARAMS
* pcbSize [out] Pointer to size of stream needed to save object
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_GetSizeMax(IMoniker* iface, ULARGE_INTEGER* pcbSize)
{
TRACE("(%p,%p)\n",iface,pcbSize);
if (!pcbSize)
return E_POINTER;
pcbSize->u.LowPart = 0;
pcbSize->u.HighPart = 0;
return E_NOTIMPL;
}
/******************************************************************************
* PointerMoniker_BindToObject
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_BindToObject(IMoniker* iface, IBindCtx* pbc, IMoniker* pmkToLeft,
REFIID riid, VOID** ppvResult)
{
PointerMonikerImpl *This = impl_from_IMoniker(iface);
TRACE("(%p,%p,%p,%s,%p)\n",iface,pbc,pmkToLeft,debugstr_guid(riid),ppvResult);
if (!This->pObject)
return E_UNEXPECTED;
return IUnknown_QueryInterface(This->pObject, riid, ppvResult);
}
/******************************************************************************
* PointerMoniker_BindToStorage
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_BindToStorage(IMoniker* iface, IBindCtx* pbc, IMoniker* pmkToLeft,
REFIID riid, VOID** ppvResult)
{
PointerMonikerImpl *This = impl_from_IMoniker(iface);
TRACE("(%p,%p,%p,%s,%p)\n",iface,pbc,pmkToLeft,debugstr_guid(riid),ppvResult);
if (!This->pObject)
return E_UNEXPECTED;
return IUnknown_QueryInterface(This->pObject, riid, ppvResult);
}
/******************************************************************************
* PointerMoniker_Reduce
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_Reduce(IMoniker* iface, IBindCtx* pbc, DWORD dwReduceHowFar,
IMoniker** ppmkToLeft, IMoniker** ppmkReduced)
{
TRACE("(%p,%p,%d,%p,%p)\n",iface,pbc,dwReduceHowFar,ppmkToLeft,ppmkReduced);
if (ppmkReduced==NULL)
return E_POINTER;
PointerMonikerImpl_AddRef(iface);
*ppmkReduced=iface;
return MK_S_REDUCED_TO_SELF;
}
/******************************************************************************
* PointerMoniker_ComposeWith
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_ComposeWith(IMoniker* iface, IMoniker* pmkRight,
BOOL fOnlyIfNotGeneric, IMoniker** ppmkComposite)
{
HRESULT res=S_OK;
DWORD mkSys,mkSys2;
IEnumMoniker* penumMk=0;
IMoniker *pmostLeftMk=0;
IMoniker* tempMkComposite=0;
TRACE("(%p,%d,%p)\n", pmkRight, fOnlyIfNotGeneric, ppmkComposite);
if ((ppmkComposite==NULL)||(pmkRight==NULL))
return E_POINTER;
*ppmkComposite=0;
IMoniker_IsSystemMoniker(pmkRight,&mkSys);
/* If pmkRight is an anti-moniker, the returned moniker is NULL */
if(mkSys==MKSYS_ANTIMONIKER)
return res;
else
/* if pmkRight is a composite whose leftmost component is an anti-moniker, */
/* the returned moniker is the composite after the leftmost anti-moniker is removed. */
if(mkSys==MKSYS_GENERICCOMPOSITE){
res=IMoniker_Enum(pmkRight,TRUE,&penumMk);
if (FAILED(res))
return res;
res=IEnumMoniker_Next(penumMk,1,&pmostLeftMk,NULL);
IMoniker_IsSystemMoniker(pmostLeftMk,&mkSys2);
if(mkSys2==MKSYS_ANTIMONIKER){
IMoniker_Release(pmostLeftMk);
tempMkComposite=iface;
IMoniker_AddRef(iface);
while(IEnumMoniker_Next(penumMk,1,&pmostLeftMk,NULL)==S_OK){
res=CreateGenericComposite(tempMkComposite,pmostLeftMk,ppmkComposite);
IMoniker_Release(tempMkComposite);
IMoniker_Release(pmostLeftMk);
tempMkComposite=*ppmkComposite;
IMoniker_AddRef(tempMkComposite);
}
return res;
}
else
return CreateGenericComposite(iface,pmkRight,ppmkComposite);
}
/* If pmkRight is not an anti-moniker, the method combines the two monikers into a generic
composite if fOnlyIfNotGeneric is FALSE; if fOnlyIfNotGeneric is TRUE, the method returns
a NULL moniker and a return value of MK_E_NEEDGENERIC */
else
if (!fOnlyIfNotGeneric)
return CreateGenericComposite(iface,pmkRight,ppmkComposite);
else
return MK_E_NEEDGENERIC;
}
/******************************************************************************
* PointerMoniker_Enum
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_Enum(IMoniker* iface,BOOL fForward, IEnumMoniker** ppenumMoniker)
{
TRACE("(%p,%d,%p)\n",iface,fForward,ppenumMoniker);
if (ppenumMoniker == NULL)
return E_POINTER;
*ppenumMoniker = NULL;
return S_OK;
}
/******************************************************************************
* PointerMoniker_IsEqual
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_IsEqual(IMoniker* iface,IMoniker* pmkOtherMoniker)
{
PointerMonikerImpl *This = impl_from_IMoniker(iface);
DWORD mkSys;
TRACE("(%p,%p)\n",iface,pmkOtherMoniker);
if (pmkOtherMoniker==NULL)
return S_FALSE;
IMoniker_IsSystemMoniker(pmkOtherMoniker,&mkSys);
if (mkSys==MKSYS_POINTERMONIKER)
{
PointerMonikerImpl *pOtherMoniker = impl_from_IMoniker(pmkOtherMoniker);
return This->pObject == pOtherMoniker->pObject ? S_OK : S_FALSE;
}
else
return S_FALSE;
}
/******************************************************************************
* PointerMoniker_Hash
******************************************************************************/
static HRESULT WINAPI PointerMonikerImpl_Hash(IMoniker* iface,DWORD* pdwHash)
{
PointerMonikerImpl *This = impl_from_IMoniker(iface);
if (pdwHash==NULL)
return E_POINTER;
*pdwHash = PtrToUlong(This->pObject);
return S_OK;
}
/******************************************************************************
* PointerMoniker_IsRunning
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_IsRunning(IMoniker* iface, IBindCtx* pbc, IMoniker* pmkToLeft,
IMoniker* pmkNewlyRunning)
{
TRACE("(%p,%p,%p,%p)\n",iface,pbc,pmkToLeft,pmkNewlyRunning);
return S_OK;
}
/******************************************************************************
* PointerMoniker_GetTimeOfLastChange
******************************************************************************/
static HRESULT WINAPI PointerMonikerImpl_GetTimeOfLastChange(IMoniker* iface,
IBindCtx* pbc,
IMoniker* pmkToLeft,
FILETIME* pAntiTime)
{
TRACE("(%p,%p,%p,%p)\n",iface,pbc,pmkToLeft,pAntiTime);
return E_NOTIMPL;
}
/******************************************************************************
* PointerMoniker_Inverse
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_Inverse(IMoniker* iface,IMoniker** ppmk)
{
TRACE("(%p,%p)\n",iface,ppmk);
return CreateAntiMoniker(ppmk);
}
/******************************************************************************
* PointerMoniker_CommonPrefixWith
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_CommonPrefixWith(IMoniker* iface,IMoniker* pmkOther,IMoniker** ppmkPrefix)
{
TRACE("(%p, %p)\n", pmkOther, ppmkPrefix);
*ppmkPrefix = NULL;
if (PointerMonikerImpl_IsEqual(iface, pmkOther))
{
IMoniker_AddRef(iface);
*ppmkPrefix=iface;
return MK_S_US;
}
else
return MK_E_NOPREFIX;
}
/******************************************************************************
* PointerMoniker_RelativePathTo
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_RelativePathTo(IMoniker* iface,IMoniker* pmOther, IMoniker** ppmkRelPath)
{
TRACE("(%p,%p,%p)\n",iface,pmOther,ppmkRelPath);
if (ppmkRelPath==NULL)
return E_POINTER;
*ppmkRelPath = NULL;
return E_NOTIMPL;
}
/******************************************************************************
* PointerMoniker_GetDisplayName
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_GetDisplayName(IMoniker* iface, IBindCtx* pbc,
IMoniker* pmkToLeft, LPOLESTR *ppszDisplayName)
{
TRACE("(%p,%p,%p,%p)\n",iface,pbc,pmkToLeft,ppszDisplayName);
if (ppszDisplayName==NULL)
return E_POINTER;
*ppszDisplayName = NULL;
return E_NOTIMPL;
}
/******************************************************************************
* PointerMoniker_ParseDisplayName
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_ParseDisplayName(IMoniker* iface, IBindCtx* pbc,
IMoniker* pmkToLeft, LPOLESTR pszDisplayName,
ULONG* pchEaten, IMoniker** ppmkOut)
{
PointerMonikerImpl *This = impl_from_IMoniker(iface);
HRESULT hr;
IParseDisplayName *pPDN;
TRACE("(%p,%p,%p,%p,%p,%p)\n",iface,pbc,pmkToLeft,pszDisplayName,pchEaten,ppmkOut);
if (pmkToLeft)
return MK_E_SYNTAX;
if (!This->pObject)
return E_UNEXPECTED;
hr = IUnknown_QueryInterface(This->pObject, &IID_IParseDisplayName, (void **)&pPDN);
if (FAILED(hr))
return hr;
hr = IParseDisplayName_ParseDisplayName(pPDN, pbc, pszDisplayName, pchEaten, ppmkOut);
IParseDisplayName_Release(pPDN);
return hr;
}
/******************************************************************************
* PointerMoniker_IsSystemMoniker
******************************************************************************/
static HRESULT WINAPI
PointerMonikerImpl_IsSystemMoniker(IMoniker* iface,DWORD* pwdMksys)
{
TRACE("(%p,%p)\n",iface,pwdMksys);
if (!pwdMksys)
return E_POINTER;
*pwdMksys = MKSYS_POINTERMONIKER;
return S_OK;
}
/********************************************************************************/
/* Virtual function table for the PointerMonikerImpl class which include IPersist,*/
/* IPersistStream and IMoniker functions. */
static const IMonikerVtbl VT_PointerMonikerImpl =
{
PointerMonikerImpl_QueryInterface,
PointerMonikerImpl_AddRef,
PointerMonikerImpl_Release,
PointerMonikerImpl_GetClassID,
PointerMonikerImpl_IsDirty,
PointerMonikerImpl_Load,
PointerMonikerImpl_Save,
PointerMonikerImpl_GetSizeMax,
PointerMonikerImpl_BindToObject,
PointerMonikerImpl_BindToStorage,
PointerMonikerImpl_Reduce,
PointerMonikerImpl_ComposeWith,
PointerMonikerImpl_Enum,
PointerMonikerImpl_IsEqual,
PointerMonikerImpl_Hash,
PointerMonikerImpl_IsRunning,
PointerMonikerImpl_GetTimeOfLastChange,
PointerMonikerImpl_Inverse,
PointerMonikerImpl_CommonPrefixWith,
PointerMonikerImpl_RelativePathTo,
PointerMonikerImpl_GetDisplayName,
PointerMonikerImpl_ParseDisplayName,
PointerMonikerImpl_IsSystemMoniker
};
/******************************************************************************
* PointerMoniker_Construct (local function)
*******************************************************************************/
static void PointerMonikerImpl_Construct(PointerMonikerImpl* This, IUnknown *punk)
{
TRACE("(%p)\n",This);
/* Initialize the virtual function table. */
This->IMoniker_iface.lpVtbl = &VT_PointerMonikerImpl;
This->ref = 1;
if (punk)
IUnknown_AddRef(punk);
This->pObject = punk;
}
/***********************************************************************
* CreatePointerMoniker (OLE32.@)
*
* Creates a moniker which represents a pointer.
*
* PARAMS
* punk [I] Pointer to the object to represent.
* ppmk [O] Address that receives the pointer to the created moniker.
*
* RETURNS
* Success: S_OK.
* Failure: Any HRESULT code.
*/
HRESULT WINAPI CreatePointerMoniker(LPUNKNOWN punk, LPMONIKER *ppmk)
{
PointerMonikerImpl *This;
TRACE("(%p, %p)\n", punk, ppmk);
if (!ppmk)
return E_INVALIDARG;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
if (!This)
{
*ppmk = NULL;
return E_OUTOFMEMORY;
}
PointerMonikerImpl_Construct(This, punk);
*ppmk = &This->IMoniker_iface;
return S_OK;
}
HRESULT WINAPI PointerMoniker_CreateInstance(IClassFactory *iface,
IUnknown *pUnk, REFIID riid, void **ppv)
{
IMoniker *pMoniker;
HRESULT hr;
TRACE("(%p, %s, %p)\n", pUnk, debugstr_guid(riid), ppv);
*ppv = NULL;
if (pUnk)
return CLASS_E_NOAGGREGATION;
hr = CreatePointerMoniker(NULL, &pMoniker);
if (FAILED(hr))
return hr;
hr = IMoniker_QueryInterface(pMoniker, riid, ppv);
if (FAILED(hr))
IMoniker_Release(pMoniker);
return hr;
}
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