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msxml3: Accept ISequentialStream as reader input.

This commit is contained in:
Nikolay Sivov 2012-07-24 09:59:50 +04:00 committed by Alexandre Julliard
parent 92110cbea8
commit 5b7a55f67f
1 changed files with 30 additions and 15 deletions
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45
dlls/msxml3/saxreader.c
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@ -2295,7 +2295,7 @@ static HRESULT internal_parseBuffer(saxreader *This, const char *buffer, int siz
return hr;
}
static HRESULT internal_parseStream(saxreader *This, IStream *stream, BOOL vbInterface)
static HRESULT internal_parseStream(saxreader *This, ISequentialStream *stream, BOOL vbInterface)
{
saxlocator *locator;
HRESULT hr;
@ -2304,7 +2304,7 @@ static HRESULT internal_parseStream(saxreader *This, IStream *stream, BOOL vbInt
int ret;
dataRead = 0;
hr = IStream_Read(stream, data, sizeof(data), &dataRead);
hr = ISequentialStream_Read(stream, data, sizeof(data), &dataRead);
if(FAILED(hr)) return hr;
hr = SAXLocator_create(This, &locator, vbInterface);
@ -2331,7 +2331,7 @@ static HRESULT internal_parseStream(saxreader *This, IStream *stream, BOOL vbInt
while(1)
{
dataRead = 0;
hr = IStream_Read(stream, data, sizeof(data), &dataRead);
hr = ISequentialStream_Read(stream, data, sizeof(data), &dataRead);
if (FAILED(hr)) break;
ret = xmlParseChunk(locator->pParserCtxt, data, dataRead, 0);
@ -2411,7 +2411,7 @@ static HRESULT internal_parse(
case VT_UNKNOWN:
case VT_DISPATCH: {
IPersistStream *persistStream;
IStream *stream = NULL;
ISequentialStream *stream = NULL;
IXMLDOMDocument *xmlDoc;
if(IUnknown_QueryInterface(V_UNKNOWN(&varInput),
@ -2430,29 +2430,44 @@ static HRESULT internal_parse(
if(IUnknown_QueryInterface(V_UNKNOWN(&varInput),
&IID_IPersistStream, (void**)&persistStream) == S_OK)
{
hr = CreateStreamOnHGlobal(NULL, TRUE, &stream);
IStream *stream_copy;
hr = CreateStreamOnHGlobal(NULL, TRUE, &stream_copy);
if(hr != S_OK)
{
IPersistStream_Release(persistStream);
return hr;
}
hr = IPersistStream_Save(persistStream, stream, TRUE);
hr = IPersistStream_Save(persistStream, stream_copy, TRUE);
IPersistStream_Release(persistStream);
if(hr != S_OK)
{
IStream_Release(stream);
stream = NULL;
}
if(hr == S_OK)
IStream_QueryInterface(stream_copy, &IID_ISequentialStream, (void**)&stream);
IStream_Release(stream_copy);
}
if(stream || IUnknown_QueryInterface(V_UNKNOWN(&varInput),
&IID_IStream, (void**)&stream) == S_OK)
/* try base interface first */
if(!stream)
{
IUnknown_QueryInterface(V_UNKNOWN(&varInput), &IID_ISequentialStream, (void**)&stream);
if (!stream)
/* this should never happen if IStream is implemented properly, but just in case */
IUnknown_QueryInterface(V_UNKNOWN(&varInput), &IID_IStream, (void**)&stream);
}
if(stream)
{
hr = internal_parseStream(This, stream, vbInterface);
IStream_Release(stream);
break;
ISequentialStream_Release(stream);
}
else
{
WARN("IUnknown* input doesn't support any of expected interfaces\n");
hr = E_INVALIDARG;
}
break;
}
default:
WARN("vt %d not implemented\n", V_VT(&varInput));