wine/dlls/xmllite/reader.c

494 lines
14 KiB
C

/*
* IXmlReader implementation
*
* Copyright 2010 Nikolay Sivov
*
* 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
*/
#define COBJMACROS
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "initguid.h"
#include "objbase.h"
#include "xmllite.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(xmllite);
/* not defined in public headers */
DEFINE_GUID(IID_IXmlReaderInput, 0x0b3ccc9b, 0x9214, 0x428b, 0xa2, 0xae, 0xef, 0x3a, 0xa8, 0x71, 0xaf, 0xda);
static HRESULT xmlreaderinput_query_for_stream(IXmlReaderInput *iface, void **pObj);
typedef struct _xmlreader
{
const IXmlReaderVtbl *lpVtbl;
LONG ref;
IXmlReaderInput *input;
ISequentialStream *stream;/* stored as sequential stream, cause currently
optimizations possible with IStream aren't implemented */
XmlReadState state;
UINT line, pos; /* reader position in XML stream */
} xmlreader;
typedef struct _xmlreaderinput
{
const IUnknownVtbl *lpVtbl;
LONG ref;
IUnknown *input; /* reference passed on IXmlReaderInput creation */
} xmlreaderinput;
static inline xmlreader *impl_from_IXmlReader(IXmlReader *iface)
{
return (xmlreader *)((char*)iface - FIELD_OFFSET(xmlreader, lpVtbl));
}
static inline xmlreaderinput *impl_from_IXmlReaderInput(IXmlReaderInput *iface)
{
return (xmlreaderinput *)((char*)iface - FIELD_OFFSET(xmlreaderinput, lpVtbl));
}
static HRESULT WINAPI xmlreader_QueryInterface(IXmlReader *iface, REFIID riid, void** ppvObject)
{
xmlreader *This = impl_from_IXmlReader(iface);
TRACE("%p %s %p\n", This, debugstr_guid(riid), ppvObject);
if (IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_IXmlReader))
{
*ppvObject = iface;
}
else
{
FIXME("interface %s not implemented\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
IXmlReader_AddRef(iface);
return S_OK;
}
static ULONG WINAPI xmlreader_AddRef(IXmlReader *iface)
{
xmlreader *This = impl_from_IXmlReader(iface);
TRACE("%p\n", This);
return InterlockedIncrement(&This->ref);
}
static ULONG WINAPI xmlreader_Release(IXmlReader *iface)
{
xmlreader *This = impl_from_IXmlReader(iface);
LONG ref;
TRACE("%p\n", This);
ref = InterlockedDecrement(&This->ref);
if (ref == 0)
{
if (This->input) IUnknown_Release(This->input);
if (This->stream) IUnknown_Release(This->stream);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI xmlreader_SetInput(IXmlReader* iface, IUnknown *input)
{
xmlreader *This = impl_from_IXmlReader(iface);
HRESULT hr;
TRACE("(%p %p)\n", This, input);
if (This->input)
{
IUnknown_Release(This->input);
This->input = NULL;
}
if (This->stream)
{
IUnknown_Release(This->stream);
This->stream = NULL;
}
This->line = This->pos = 0;
/* just reset current input */
if (!input)
{
This->state = XmlReadState_Initial;
return S_OK;
}
/* now try IXmlReaderInput, ISequentialStream, IStream */
hr = IUnknown_QueryInterface(input, &IID_IXmlReaderInput, (void**)&This->input);
if (hr != S_OK)
{
/* create IXmlReaderInput basing on supplied interface */
hr = CreateXmlReaderInputWithEncodingName(input,
NULL, NULL, FALSE, NULL, &This->input);
if (hr != S_OK) return hr;
}
/* set stream for supplied IXmlReaderInput */
hr = xmlreaderinput_query_for_stream(This->input, (void**)&This->stream);
if (hr == S_OK)
This->state = XmlReadState_Initial;
return hr;
}
static HRESULT WINAPI xmlreader_GetProperty(IXmlReader* iface, UINT property, LONG_PTR *value)
{
xmlreader *This = impl_from_IXmlReader(iface);
TRACE("(%p %u %p)\n", This, property, value);
if (!value) return E_INVALIDARG;
switch (property)
{
case XmlReaderProperty_ReadState:
*value = This->state;
break;
default:
FIXME("Unimplemented property (%u)\n", property);
return E_NOTIMPL;
}
return S_OK;
}
static HRESULT WINAPI xmlreader_SetProperty(IXmlReader* iface, UINT property, LONG_PTR value)
{
FIXME("(%p %u %lu): stub\n", iface, property, value);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_Read(IXmlReader* iface, XmlNodeType *node_type)
{
FIXME("(%p %p): stub\n", iface, node_type);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetNodeType(IXmlReader* iface, XmlNodeType *node_type)
{
FIXME("(%p %p): stub\n", iface, node_type);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_MoveToFirstAttribute(IXmlReader* iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_MoveToNextAttribute(IXmlReader* iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_MoveToAttributeByName(IXmlReader* iface,
LPCWSTR local_name,
LPCWSTR namespaceUri)
{
FIXME("(%p %p %p): stub\n", iface, local_name, namespaceUri);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_MoveToElement(IXmlReader* iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetQualifiedName(IXmlReader* iface, LPCWSTR *qualifiedName,
UINT *qualifiedName_length)
{
FIXME("(%p %p %p): stub\n", iface, qualifiedName, qualifiedName_length);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetNamespaceUri(IXmlReader* iface,
LPCWSTR *namespaceUri,
UINT *namespaceUri_length)
{
FIXME("(%p %p %p): stub\n", iface, namespaceUri, namespaceUri_length);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetLocalName(IXmlReader* iface,
LPCWSTR *local_name,
UINT *local_name_length)
{
FIXME("(%p %p %p): stub\n", iface, local_name, local_name_length);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetPrefix(IXmlReader* iface,
LPCWSTR *prefix,
UINT *prefix_length)
{
FIXME("(%p %p %p): stub\n", iface, prefix, prefix_length);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetValue(IXmlReader* iface,
LPCWSTR *value,
UINT *value_length)
{
FIXME("(%p %p %p): stub\n", iface, value, value_length);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_ReadValueChunk(IXmlReader* iface,
WCHAR *buffer,
UINT chunk_size,
UINT *read)
{
FIXME("(%p %p %u %p): stub\n", iface, buffer, chunk_size, read);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetBaseUri(IXmlReader* iface,
LPCWSTR *baseUri,
UINT *baseUri_length)
{
FIXME("(%p %p %p): stub\n", iface, baseUri, baseUri_length);
return E_NOTIMPL;
}
static BOOL WINAPI xmlreader_IsDefault(IXmlReader* iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
}
static BOOL WINAPI xmlreader_IsEmptyElement(IXmlReader* iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetLineNumber(IXmlReader* iface, UINT *lineNumber)
{
xmlreader *This = impl_from_IXmlReader(iface);
TRACE("(%p %p)\n", This, lineNumber);
if (!lineNumber) return E_INVALIDARG;
*lineNumber = This->line;
return S_OK;
}
static HRESULT WINAPI xmlreader_GetLinePosition(IXmlReader* iface, UINT *linePosition)
{
xmlreader *This = impl_from_IXmlReader(iface);
TRACE("(%p %p)\n", This, linePosition);
if (!linePosition) return E_INVALIDARG;
*linePosition = This->pos;
return S_OK;
}
static HRESULT WINAPI xmlreader_GetAttributeCount(IXmlReader* iface, UINT *attributeCount)
{
FIXME("(%p %p): stub\n", iface, attributeCount);
return E_NOTIMPL;
}
static HRESULT WINAPI xmlreader_GetDepth(IXmlReader* iface, UINT *depth)
{
FIXME("(%p %p): stub\n", iface, depth);
return E_NOTIMPL;
}
static BOOL WINAPI xmlreader_IsEOF(IXmlReader* iface)
{
FIXME("(%p): stub\n", iface);
return E_NOTIMPL;
}
static const struct IXmlReaderVtbl xmlreader_vtbl =
{
xmlreader_QueryInterface,
xmlreader_AddRef,
xmlreader_Release,
xmlreader_SetInput,
xmlreader_GetProperty,
xmlreader_SetProperty,
xmlreader_Read,
xmlreader_GetNodeType,
xmlreader_MoveToFirstAttribute,
xmlreader_MoveToNextAttribute,
xmlreader_MoveToAttributeByName,
xmlreader_MoveToElement,
xmlreader_GetQualifiedName,
xmlreader_GetNamespaceUri,
xmlreader_GetLocalName,
xmlreader_GetPrefix,
xmlreader_GetValue,
xmlreader_ReadValueChunk,
xmlreader_GetBaseUri,
xmlreader_IsDefault,
xmlreader_IsEmptyElement,
xmlreader_GetLineNumber,
xmlreader_GetLinePosition,
xmlreader_GetAttributeCount,
xmlreader_GetDepth,
xmlreader_IsEOF
};
/** IXmlReaderInput **/
/* Queries already stored interface for IStream/ISequentialStream.
Interface supplied on creation will be overwritten */
static HRESULT xmlreaderinput_query_for_stream(IXmlReaderInput *iface, void **pObj)
{
xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
HRESULT hr;
hr = IUnknown_QueryInterface(This->input, &IID_IStream, pObj);
if (hr != S_OK)
hr = IUnknown_QueryInterface(This->input, &IID_ISequentialStream, pObj);
return hr;
}
static HRESULT WINAPI xmlreaderinput_QueryInterface(IXmlReaderInput *iface, REFIID riid, void** ppvObject)
{
xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
TRACE("%p %s %p\n", This, debugstr_guid(riid), ppvObject);
if (IsEqualGUID(riid, &IID_IXmlReaderInput) ||
IsEqualGUID(riid, &IID_IUnknown))
{
*ppvObject = iface;
}
else
{
FIXME("interface %s not implemented\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
IUnknown_AddRef(iface);
return S_OK;
}
static ULONG WINAPI xmlreaderinput_AddRef(IXmlReaderInput *iface)
{
xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
TRACE("%p\n", This);
return InterlockedIncrement(&This->ref);
}
static ULONG WINAPI xmlreaderinput_Release(IXmlReaderInput *iface)
{
xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
LONG ref;
TRACE("%p\n", This);
ref = InterlockedDecrement(&This->ref);
if (ref == 0)
{
if (This->input) IUnknown_Release(This->input);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static const struct IUnknownVtbl xmlreaderinput_vtbl =
{
xmlreaderinput_QueryInterface,
xmlreaderinput_AddRef,
xmlreaderinput_Release
};
HRESULT WINAPI CreateXmlReader(REFIID riid, void **pObject, IMalloc *pMalloc)
{
xmlreader *reader;
TRACE("(%s, %p, %p)\n", wine_dbgstr_guid(riid), pObject, pMalloc);
if (pMalloc) FIXME("custom IMalloc not supported yet\n");
if (!IsEqualGUID(riid, &IID_IXmlReader))
{
ERR("Unexpected IID requested -> (%s)\n", wine_dbgstr_guid(riid));
return E_FAIL;
}
reader = HeapAlloc(GetProcessHeap(), 0, sizeof (*reader));
if(!reader) return E_OUTOFMEMORY;
reader->lpVtbl = &xmlreader_vtbl;
reader->ref = 1;
reader->stream = NULL;
reader->input = NULL;
reader->state = XmlReadState_Closed;
reader->line = reader->pos = 0;
*pObject = &reader->lpVtbl;
TRACE("returning iface %p\n", *pObject);
return S_OK;
}
HRESULT WINAPI CreateXmlReaderInputWithEncodingName(IUnknown *stream,
IMalloc *pMalloc,
LPCWSTR encoding,
BOOL hint,
LPCWSTR base_uri,
IXmlReaderInput **ppInput)
{
xmlreaderinput *readerinput;
FIXME("%p %p %s %d %s %p: stub\n", stream, pMalloc, wine_dbgstr_w(encoding),
hint, wine_dbgstr_w(base_uri), ppInput);
if (!stream || !ppInput) return E_INVALIDARG;
readerinput = HeapAlloc(GetProcessHeap(), 0, sizeof (*readerinput));
if(!readerinput) return E_OUTOFMEMORY;
readerinput->lpVtbl = &xmlreaderinput_vtbl;
readerinput->ref = 1;
IUnknown_QueryInterface(stream, &IID_IUnknown, (void**)&readerinput->input);
*ppInput = (IXmlReaderInput*)&readerinput->lpVtbl;
TRACE("returning iface %p\n", *ppInput);
return S_OK;
}