classmoniker.c

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

static HRESULT WINAPI ClassMoniker_IsRunning(IMoniker* iface,
                                         IBindCtx* pbc,
                                         IMoniker* pmkToLeft,
                                         IMoniker* pmkNewlyRunning)
{
    TRACE("(%p, %p, %p)\n", pbc, pmkToLeft, pmkNewlyRunning);

    /* as in native */
    return E_NOTIMPL;
}

/******************************************************************************
 *        ClassMoniker_GetTimeOfLastChange
 ******************************************************************************/
static HRESULT WINAPI ClassMoniker_GetTimeOfLastChange(IMoniker* iface,
                                                   IBindCtx* pbc,
                                                   IMoniker* pmkToLeft,
                                                   FILETIME* pItemTime)
{
    TRACE("(%p, %p, %p)\n", pbc, pmkToLeft, pItemTime);

    return MK_E_UNAVAILABLE;
}

/******************************************************************************
 *        ClassMoniker_Inverse
 ******************************************************************************/
static HRESULT WINAPI ClassMoniker_Inverse(IMoniker* iface,IMoniker** ppmk)
{
    TRACE("(%p)\n",ppmk);

    if (!ppmk)
        return E_POINTER;

    return CreateAntiMoniker(ppmk);
}

/******************************************************************************
 *        ClassMoniker_CommonPrefixWith
 ******************************************************************************/
static HRESULT WINAPI ClassMoniker_CommonPrefixWith(IMoniker* iface,IMoniker* pmkOther,IMoniker** ppmkPrefix)
{
    DWORD mkSys;
    
    TRACE("(%p, %p)\n", pmkOther, ppmkPrefix);

    *ppmkPrefix = NULL;

    IMoniker_IsSystemMoniker(pmkOther, &mkSys);

    /* If the other moniker is an class moniker that is equal to this moniker, this method sets *ppmkPrefix */
    /* to this moniker and returns MK_S_US */

    if (mkSys == MKSYS_CLASSMONIKER)
    {
        if (IMoniker_IsEqual(iface, pmkOther) == S_OK)
        {
            *ppmkPrefix = iface;

            IMoniker_AddRef(iface);

            return MK_S_US;
        }
        else
            return MK_E_NOPREFIX;
    }
    else
        /* otherwise, the method calls the MonikerCommonPrefixWith function. This function correctly handles */
        /* the case where the other moniker is a generic composite. */
        return MonikerCommonPrefixWith(iface, pmkOther, ppmkPrefix);
}

/******************************************************************************
 *        ClassMoniker_RelativePathTo
 ******************************************************************************/
static HRESULT WINAPI ClassMoniker_RelativePathTo(IMoniker* iface,IMoniker* pmOther, IMoniker** ppmkRelPath)
{
    TRACE("(%p, %p)\n",pmOther,ppmkRelPath);

    if (!ppmkRelPath)
        return E_POINTER;

    *ppmkRelPath = NULL;

    return MK_E_NOTBINDABLE;
}

/******************************************************************************
 *        ClassMoniker_GetDisplayName
 ******************************************************************************/
static HRESULT WINAPI ClassMoniker_GetDisplayName(IMoniker* iface,
                                              IBindCtx* pbc,
                                              IMoniker* pmkToLeft,
                                              LPOLESTR *ppszDisplayName)
{
    ClassMoniker *This = (ClassMoniker *)iface;
    static const WCHAR wszClsidPrefix[] = {'c','l','s','i','d',':',0};

    TRACE("(%p, %p, %p)\n", pbc, pmkToLeft, ppszDisplayName);

    if (!ppszDisplayName)
        return E_POINTER;

    if (pmkToLeft)
        return E_INVALIDARG;

    *ppszDisplayName = CoTaskMemAlloc(sizeof(wszClsidPrefix) + (CHARS_IN_GUID-2) * sizeof(WCHAR));

    StringFromGUID2(&This->clsid, *ppszDisplayName+sizeof(wszClsidPrefix)/sizeof(WCHAR)-2, CHARS_IN_GUID);

    /* note: this overwrites the opening curly bracket of the CLSID string generated above */
    memcpy(*ppszDisplayName, wszClsidPrefix, sizeof(wszClsidPrefix)-sizeof(WCHAR));

    /* note: this overwrites the closing curly bracket of the CLSID string generated above */
    (*ppszDisplayName)[sizeof(wszClsidPrefix)/sizeof(WCHAR)-2+CHARS_IN_GUID-2] = ':';
    (*ppszDisplayName)[sizeof(wszClsidPrefix)/sizeof(WCHAR)-2+CHARS_IN_GUID-1] = '\0';

    TRACE("string is %s\n", debugstr_w(*ppszDisplayName));
    return S_OK;
}

/******************************************************************************
 *        ClassMoniker_ParseDisplayName
 ******************************************************************************/
static HRESULT WINAPI ClassMoniker_ParseDisplayName(IMoniker* iface,
                                                IBindCtx* pbc,
                                                IMoniker* pmkToLeft,
                                                LPOLESTR pszDisplayName,
                                                ULONG* pchEaten,
                                                IMoniker** ppmkOut)
{
    FIXME("(%p, %p, %s, %p, %p)\n", pbc, pmkToLeft, debugstr_w(pszDisplayName), pchEaten, ppmkOut);
    return E_NOTIMPL;
}

/******************************************************************************
 *        ClassMoniker_IsSystemMoniker
 ******************************************************************************/
static HRESULT WINAPI ClassMoniker_IsSystemMoniker(IMoniker* iface,DWORD* pwdMksys)
{
    TRACE("(%p,%p)\n",iface,pwdMksys);

    if (!pwdMksys)
        return E_POINTER;

    *pwdMksys = MKSYS_CLASSMONIKER;

    return S_OK;
}

/*******************************************************************************
 *        ClassMonikerIROTData_QueryInterface
 *******************************************************************************/
static HRESULT WINAPI ClassMonikerROTData_QueryInterface(IROTData *iface,REFIID riid,VOID** ppvObject)
{

    IMoniker *This = impl_from_IROTData(iface);

    TRACE("(%p,%p,%p)\n",iface,riid,ppvObject);

    return ClassMoniker_QueryInterface(This, riid, ppvObject);
}

/***********************************************************************
 *        ClassMonikerIROTData_AddRef
 */
static ULONG WINAPI ClassMonikerROTData_AddRef(IROTData *iface)
{
    IMoniker *This = impl_from_IROTData(iface);

    TRACE("(%p)\n",iface);

    return ClassMoniker_AddRef(This);
}

/***********************************************************************
 *        ClassMonikerIROTData_Release
 */
static ULONG WINAPI ClassMonikerROTData_Release(IROTData* iface)
{
    IMoniker *This = impl_from_IROTData(iface);

    TRACE("(%p)\n",iface);

    return ClassMoniker_Release(This);
}

/******************************************************************************
 *        ClassMonikerIROTData_GetComparaisonData
 ******************************************************************************/
static HRESULT WINAPI ClassMonikerROTData_GetComparaisonData(IROTData* iface,
                                                         BYTE* pbData,
                                                         ULONG cbMax,
                                                         ULONG* pcbData)
{
    ClassMoniker *This = (ClassMoniker *)impl_from_IROTData(iface);

    TRACE("(%p, %u, %p)\n", pbData, cbMax, pcbData);

    *pcbData = 2*sizeof(CLSID);
    if (cbMax < *pcbData)
        return E_OUTOFMEMORY;

    /* write CLSID of the moniker */
    memcpy(pbData, &CLSID_ClassMoniker, sizeof(CLSID));
    /* write CLSID the moniker represents */
    memcpy(pbData+sizeof(CLSID), &This->clsid, sizeof(CLSID));

    return S_OK;
}

/********************************************************************************/
/* Virtual function table for the ClassMoniker class which  include IPersist,*/
/* IPersistStream and IMoniker functions.                                       */
static const IMonikerVtbl ClassMonikerVtbl =
{
    ClassMoniker_QueryInterface,
    ClassMoniker_AddRef,
    ClassMoniker_Release,
    ClassMoniker_GetClassID,
    ClassMoniker_IsDirty,
    ClassMoniker_Load,
    ClassMoniker_Save,
    ClassMoniker_GetSizeMax,
    ClassMoniker_BindToObject,
    ClassMoniker_BindToStorage,
    ClassMoniker_Reduce,
    ClassMoniker_ComposeWith,
    ClassMoniker_Enum,
    ClassMoniker_IsEqual,
    ClassMoniker_Hash,
    ClassMoniker_IsRunning,
    ClassMoniker_GetTimeOfLastChange,
    ClassMoniker_Inverse,
    ClassMoniker_CommonPrefixWith,
    ClassMoniker_RelativePathTo,
    ClassMoniker_GetDisplayName,
    ClassMoniker_ParseDisplayName,
    ClassMoniker_IsSystemMoniker
};

/********************************************************************************/
/* Virtual function table for the IROTData class.                               */
static const IROTDataVtbl ROTDataVtbl =
{
    ClassMonikerROTData_QueryInterface,
    ClassMonikerROTData_AddRef,
    ClassMonikerROTData_Release,
    ClassMonikerROTData_GetComparaisonData
};

/******************************************************************************
 *         ClassMoniker_Construct (local function)
 *******************************************************************************/
static HRESULT WINAPI ClassMoniker_Construct(ClassMoniker* This, REFCLSID rclsid)
{
    TRACE("(%p,%s)\n",This,debugstr_guid(rclsid));

    /* Initialize the virtual function table. */
    This->lpVtbl        = &ClassMonikerVtbl;
    This->lpVtblRotData = &ROTDataVtbl;
    This->ref           = 0;
    This->clsid         = *rclsid;
    This->pMarshal      = NULL;

    return S_OK;
}

/******************************************************************************
 *        CreateClassMoniker	[OLE32.@]
 ******************************************************************************/
HRESULT WINAPI CreateClassMoniker(REFCLSID rclsid, IMoniker **ppmk)
{
    ClassMoniker* newClassMoniker;
    HRESULT       hr;

    TRACE("(%s,%p)\n", debugstr_guid(rclsid), ppmk);

    newClassMoniker = HeapAlloc(GetProcessHeap(), 0, sizeof(ClassMoniker));

    if (!newClassMoniker)
        return STG_E_INSUFFICIENTMEMORY;

    hr = ClassMoniker_Construct(newClassMoniker, rclsid);

    if (FAILED(hr))
    {
        HeapFree(GetProcessHeap(), 0, newClassMoniker);
        return hr;
    }

    return ClassMoniker_QueryInterface((IMoniker *)newClassMoniker, &IID_IMoniker, (void**)ppmk);
}

HRESULT ClassMoniker_CreateFromDisplayName(LPBC pbc, LPCOLESTR szDisplayName,
                                           LPDWORD pchEaten, LPMONIKER *ppmk)
{
    HRESULT hr;
    LPCWSTR s = strchrW(szDisplayName, ':');
    LPCWSTR end;
    CLSID clsid;
    BYTE table[256];
    int i;

    if (!s)
        return MK_E_SYNTAX;

    s++;

    for (end = s; *end && (*end != ':'); end++)
        ;

    TRACE("parsing %s\n", debugstr_wn(s, end - s));

    /* validate the CLSID string */
    if (s[0] == '{')
    {
        if ((end - s != 38) || (s[37] != '}'))
            return MK_E_SYNTAX;
        s++;
    }
    else
    {
        if (end - s != 36)
            return MK_E_SYNTAX;
    }

    for (i=0; i<36; i++)
    {
        if ((i == 8)||(i == 13)||(i == 18)||(i == 23))
        {
            if (s[i] != '-')
                return MK_E_SYNTAX;
            continue;
        }
        if (!(((s[i] >= '0') && (s[i] <= '9'))  ||
              ((s[i] >= 'a') && (s[i] <= 'f'))  ||
              ((s[i] >= 'A') && (s[i] <= 'F'))))
            return MK_E_SYNTAX;
    }

    /* quick lookup table */
    memset(table, 0, 256);

    for (i = 0; i < 10; i++)
        table['0' + i] = i;
    for (i = 0; i < 6; i++)
    {
        table['A' + i] = i+10;
        table['a' + i] = i+10;
    }

    /* in form XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX */

    clsid.Data1 = (table[s[0]] << 28 | table[s[1]] << 24 | table[s[2]] << 20 | table[s[3]] << 16 |
                   table[s[4]] << 12 | table[s[5]] << 8  | table[s[6]] << 4  | table[s[7]]);
    clsid.Data2 = table[s[9]] << 12  | table[s[10]] << 8 | table[s[11]] << 4 | table[s[12]];
    clsid.Data3 = table[s[14]] << 12 | table[s[15]] << 8 | table[s[16]] << 4 | table[s[17]];

    /* these are just sequential bytes */
    clsid.Data4[0] = table[s[19]] << 4 | table[s[20]];
    clsid.Data4[1] = table[s[21]] << 4 | table[s[22]];
    clsid.Data4[2] = table[s[24]] << 4 | table[s[25]];
    clsid.Data4[3] = table[s[26]] << 4 | table[s[27]];
    clsid.Data4[4] = table[s[28]] << 4 | table[s[29]];
    clsid.Data4[5] = table[s[30]] << 4 | table[s[31]];
    clsid.Data4[6] = table[s[32]] << 4 | table[s[33]];
    clsid.Data4[7] = table[s[34]] << 4 | table[s[35]];

    hr = CreateClassMoniker(&clsid, ppmk);
    if (SUCCEEDED(hr))
        *pchEaten = (*end == ':' ? end + 1 : end) - szDisplayName;
    return hr;
}

static HRESULT WINAPI ClassMonikerCF_QueryInterface(LPCLASSFACTORY iface,
                                                  REFIID riid, LPVOID *ppv)
{
    *ppv = NULL;
    if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IClassFactory))
    {
        *ppv = iface;
        IUnknown_AddRef(iface);
        return S_OK;
    }
    return E_NOINTERFACE;
}

static ULONG WINAPI ClassMonikerCF_AddRef(LPCLASSFACTORY iface)
{
    return 2; /* non-heap based object */
}

static ULONG WINAPI ClassMonikerCF_Release(LPCLASSFACTORY iface)
{
    return 1; /* non-heap based object */
}

static HRESULT WINAPI ClassMonikerCF_CreateInstance(LPCLASSFACTORY iface,
    LPUNKNOWN pUnk, REFIID riid, LPVOID *ppv)
{
    HRESULT hr;
    IMoniker *pmk;

    TRACE("(%p, %s, %p)\n", pUnk, debugstr_guid(riid), ppv);

    *ppv = NULL;

    if (pUnk)
        return CLASS_E_NOAGGREGATION;

    hr = CreateClassMoniker(&CLSID_NULL, &pmk);
    if (FAILED(hr)) return hr;

    hr = IMoniker_QueryInterface(pmk, riid, ppv);
    IMoniker_Release(pmk);

    return hr;
}

static HRESULT WINAPI ClassMonikerCF_LockServer(LPCLASSFACTORY iface, BOOL fLock)
{
    FIXME("(%d), stub!\n",fLock);
    return S_OK;
}

static const IClassFactoryVtbl ClassMonikerCFVtbl =
{
    ClassMonikerCF_QueryInterface,
    ClassMonikerCF_AddRef,
    ClassMonikerCF_Release,
    ClassMonikerCF_CreateInstance,
    ClassMonikerCF_LockServer
};
static const IClassFactoryVtbl *ClassMonikerCF = &ClassMonikerCFVtbl;

HRESULT ClassMonikerCF_Create(REFIID riid, LPVOID *ppv)
{
    return IClassFactory_QueryInterface((IClassFactory *)&ClassMonikerCF, riid, ppv);
}