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494 lines
14 KiB
C
494 lines
14 KiB
C
/*
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* IXmlReader implementation
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*
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* Copyright 2010 Nikolay Sivov
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#define COBJMACROS
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "initguid.h"
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#include "objbase.h"
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#include "xmllite.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(xmllite);
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/* not defined in public headers */
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DEFINE_GUID(IID_IXmlReaderInput, 0x0b3ccc9b, 0x9214, 0x428b, 0xa2, 0xae, 0xef, 0x3a, 0xa8, 0x71, 0xaf, 0xda);
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static HRESULT xmlreaderinput_query_for_stream(IXmlReaderInput *iface, void **pObj);
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typedef struct _xmlreader
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{
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const IXmlReaderVtbl *lpVtbl;
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LONG ref;
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IXmlReaderInput *input;
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ISequentialStream *stream;/* stored as sequential stream, cause currently
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optimizations possible with IStream aren't implemented */
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XmlReadState state;
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UINT line, pos; /* reader position in XML stream */
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} xmlreader;
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typedef struct _xmlreaderinput
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{
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const IUnknownVtbl *lpVtbl;
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LONG ref;
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IUnknown *input; /* reference passed on IXmlReaderInput creation */
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} xmlreaderinput;
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static inline xmlreader *impl_from_IXmlReader(IXmlReader *iface)
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{
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return (xmlreader *)((char*)iface - FIELD_OFFSET(xmlreader, lpVtbl));
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}
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static inline xmlreaderinput *impl_from_IXmlReaderInput(IXmlReaderInput *iface)
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{
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return (xmlreaderinput *)((char*)iface - FIELD_OFFSET(xmlreaderinput, lpVtbl));
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}
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static HRESULT WINAPI xmlreader_QueryInterface(IXmlReader *iface, REFIID riid, void** ppvObject)
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{
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xmlreader *This = impl_from_IXmlReader(iface);
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TRACE("%p %s %p\n", This, debugstr_guid(riid), ppvObject);
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if (IsEqualGUID(riid, &IID_IUnknown) ||
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IsEqualGUID(riid, &IID_IXmlReader))
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{
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*ppvObject = iface;
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}
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else
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{
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FIXME("interface %s not implemented\n", debugstr_guid(riid));
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return E_NOINTERFACE;
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}
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IXmlReader_AddRef(iface);
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return S_OK;
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}
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static ULONG WINAPI xmlreader_AddRef(IXmlReader *iface)
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{
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xmlreader *This = impl_from_IXmlReader(iface);
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TRACE("%p\n", This);
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return InterlockedIncrement(&This->ref);
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}
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static ULONG WINAPI xmlreader_Release(IXmlReader *iface)
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{
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xmlreader *This = impl_from_IXmlReader(iface);
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LONG ref;
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TRACE("%p\n", This);
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ref = InterlockedDecrement(&This->ref);
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if (ref == 0)
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{
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if (This->input) IUnknown_Release(This->input);
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if (This->stream) IUnknown_Release(This->stream);
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HeapFree(GetProcessHeap(), 0, This);
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}
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return ref;
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}
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static HRESULT WINAPI xmlreader_SetInput(IXmlReader* iface, IUnknown *input)
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{
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xmlreader *This = impl_from_IXmlReader(iface);
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HRESULT hr;
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TRACE("(%p %p)\n", This, input);
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if (This->input)
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{
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IUnknown_Release(This->input);
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This->input = NULL;
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}
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if (This->stream)
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{
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IUnknown_Release(This->stream);
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This->stream = NULL;
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}
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This->line = This->pos = 0;
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/* just reset current input */
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if (!input)
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{
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This->state = XmlReadState_Initial;
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return S_OK;
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}
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/* now try IXmlReaderInput, ISequentialStream, IStream */
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hr = IUnknown_QueryInterface(input, &IID_IXmlReaderInput, (void**)&This->input);
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if (hr != S_OK)
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{
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/* create IXmlReaderInput basing on supplied interface */
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hr = CreateXmlReaderInputWithEncodingName(input,
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NULL, NULL, FALSE, NULL, &This->input);
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if (hr != S_OK) return hr;
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}
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/* set stream for supplied IXmlReaderInput */
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hr = xmlreaderinput_query_for_stream(This->input, (void**)&This->stream);
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if (hr == S_OK)
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This->state = XmlReadState_Initial;
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return hr;
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}
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static HRESULT WINAPI xmlreader_GetProperty(IXmlReader* iface, UINT property, LONG_PTR *value)
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{
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xmlreader *This = impl_from_IXmlReader(iface);
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TRACE("(%p %u %p)\n", This, property, value);
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if (!value) return E_INVALIDARG;
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switch (property)
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{
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case XmlReaderProperty_ReadState:
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*value = This->state;
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break;
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default:
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FIXME("Unimplemented property (%u)\n", property);
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return E_NOTIMPL;
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}
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return S_OK;
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}
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static HRESULT WINAPI xmlreader_SetProperty(IXmlReader* iface, UINT property, LONG_PTR value)
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{
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FIXME("(%p %u %lu): stub\n", iface, property, value);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_Read(IXmlReader* iface, XmlNodeType *node_type)
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{
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FIXME("(%p %p): stub\n", iface, node_type);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_GetNodeType(IXmlReader* iface, XmlNodeType *node_type)
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{
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FIXME("(%p %p): stub\n", iface, node_type);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_MoveToFirstAttribute(IXmlReader* iface)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_MoveToNextAttribute(IXmlReader* iface)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_MoveToAttributeByName(IXmlReader* iface,
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LPCWSTR local_name,
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LPCWSTR namespaceUri)
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{
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FIXME("(%p %p %p): stub\n", iface, local_name, namespaceUri);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_MoveToElement(IXmlReader* iface)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_GetQualifiedName(IXmlReader* iface, LPCWSTR *qualifiedName,
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UINT *qualifiedName_length)
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{
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FIXME("(%p %p %p): stub\n", iface, qualifiedName, qualifiedName_length);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_GetNamespaceUri(IXmlReader* iface,
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LPCWSTR *namespaceUri,
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UINT *namespaceUri_length)
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{
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FIXME("(%p %p %p): stub\n", iface, namespaceUri, namespaceUri_length);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_GetLocalName(IXmlReader* iface,
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LPCWSTR *local_name,
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UINT *local_name_length)
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{
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FIXME("(%p %p %p): stub\n", iface, local_name, local_name_length);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_GetPrefix(IXmlReader* iface,
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LPCWSTR *prefix,
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UINT *prefix_length)
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{
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FIXME("(%p %p %p): stub\n", iface, prefix, prefix_length);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_GetValue(IXmlReader* iface,
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LPCWSTR *value,
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UINT *value_length)
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{
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FIXME("(%p %p %p): stub\n", iface, value, value_length);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_ReadValueChunk(IXmlReader* iface,
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WCHAR *buffer,
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UINT chunk_size,
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UINT *read)
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{
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FIXME("(%p %p %u %p): stub\n", iface, buffer, chunk_size, read);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_GetBaseUri(IXmlReader* iface,
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LPCWSTR *baseUri,
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UINT *baseUri_length)
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{
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FIXME("(%p %p %p): stub\n", iface, baseUri, baseUri_length);
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return E_NOTIMPL;
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}
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static BOOL WINAPI xmlreader_IsDefault(IXmlReader* iface)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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}
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static BOOL WINAPI xmlreader_IsEmptyElement(IXmlReader* iface)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_GetLineNumber(IXmlReader* iface, UINT *lineNumber)
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{
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xmlreader *This = impl_from_IXmlReader(iface);
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TRACE("(%p %p)\n", This, lineNumber);
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if (!lineNumber) return E_INVALIDARG;
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*lineNumber = This->line;
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return S_OK;
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}
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static HRESULT WINAPI xmlreader_GetLinePosition(IXmlReader* iface, UINT *linePosition)
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{
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xmlreader *This = impl_from_IXmlReader(iface);
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TRACE("(%p %p)\n", This, linePosition);
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if (!linePosition) return E_INVALIDARG;
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*linePosition = This->pos;
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return S_OK;
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}
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static HRESULT WINAPI xmlreader_GetAttributeCount(IXmlReader* iface, UINT *attributeCount)
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{
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FIXME("(%p %p): stub\n", iface, attributeCount);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI xmlreader_GetDepth(IXmlReader* iface, UINT *depth)
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{
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FIXME("(%p %p): stub\n", iface, depth);
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return E_NOTIMPL;
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}
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static BOOL WINAPI xmlreader_IsEOF(IXmlReader* iface)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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}
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static const struct IXmlReaderVtbl xmlreader_vtbl =
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{
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xmlreader_QueryInterface,
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xmlreader_AddRef,
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xmlreader_Release,
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xmlreader_SetInput,
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xmlreader_GetProperty,
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xmlreader_SetProperty,
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xmlreader_Read,
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xmlreader_GetNodeType,
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xmlreader_MoveToFirstAttribute,
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xmlreader_MoveToNextAttribute,
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xmlreader_MoveToAttributeByName,
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xmlreader_MoveToElement,
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xmlreader_GetQualifiedName,
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xmlreader_GetNamespaceUri,
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xmlreader_GetLocalName,
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xmlreader_GetPrefix,
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xmlreader_GetValue,
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xmlreader_ReadValueChunk,
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xmlreader_GetBaseUri,
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xmlreader_IsDefault,
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xmlreader_IsEmptyElement,
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xmlreader_GetLineNumber,
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xmlreader_GetLinePosition,
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xmlreader_GetAttributeCount,
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xmlreader_GetDepth,
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xmlreader_IsEOF
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};
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/** IXmlReaderInput **/
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/* Queries already stored interface for IStream/ISequentialStream.
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Interface supplied on creation will be overwritten */
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static HRESULT xmlreaderinput_query_for_stream(IXmlReaderInput *iface, void **pObj)
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{
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xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
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HRESULT hr;
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hr = IUnknown_QueryInterface(This->input, &IID_IStream, pObj);
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if (hr != S_OK)
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hr = IUnknown_QueryInterface(This->input, &IID_ISequentialStream, pObj);
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return hr;
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}
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static HRESULT WINAPI xmlreaderinput_QueryInterface(IXmlReaderInput *iface, REFIID riid, void** ppvObject)
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{
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xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
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TRACE("%p %s %p\n", This, debugstr_guid(riid), ppvObject);
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if (IsEqualGUID(riid, &IID_IXmlReaderInput) ||
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IsEqualGUID(riid, &IID_IUnknown))
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{
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*ppvObject = iface;
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}
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else
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{
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FIXME("interface %s not implemented\n", debugstr_guid(riid));
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return E_NOINTERFACE;
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}
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IUnknown_AddRef(iface);
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return S_OK;
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}
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static ULONG WINAPI xmlreaderinput_AddRef(IXmlReaderInput *iface)
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{
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xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
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TRACE("%p\n", This);
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return InterlockedIncrement(&This->ref);
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}
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static ULONG WINAPI xmlreaderinput_Release(IXmlReaderInput *iface)
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{
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xmlreaderinput *This = impl_from_IXmlReaderInput(iface);
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LONG ref;
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TRACE("%p\n", This);
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ref = InterlockedDecrement(&This->ref);
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if (ref == 0)
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{
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if (This->input) IUnknown_Release(This->input);
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HeapFree(GetProcessHeap(), 0, This);
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}
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return ref;
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}
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static const struct IUnknownVtbl xmlreaderinput_vtbl =
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{
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xmlreaderinput_QueryInterface,
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xmlreaderinput_AddRef,
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xmlreaderinput_Release
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};
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HRESULT WINAPI CreateXmlReader(REFIID riid, void **pObject, IMalloc *pMalloc)
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{
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xmlreader *reader;
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TRACE("(%s, %p, %p)\n", wine_dbgstr_guid(riid), pObject, pMalloc);
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if (pMalloc) FIXME("custom IMalloc not supported yet\n");
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if (!IsEqualGUID(riid, &IID_IXmlReader))
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{
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ERR("Unexpected IID requested -> (%s)\n", wine_dbgstr_guid(riid));
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return E_FAIL;
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}
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reader = HeapAlloc(GetProcessHeap(), 0, sizeof (*reader));
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if(!reader) return E_OUTOFMEMORY;
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reader->lpVtbl = &xmlreader_vtbl;
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reader->ref = 1;
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reader->stream = NULL;
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reader->input = NULL;
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reader->state = XmlReadState_Closed;
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reader->line = reader->pos = 0;
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*pObject = &reader->lpVtbl;
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TRACE("returning iface %p\n", *pObject);
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return S_OK;
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}
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HRESULT WINAPI CreateXmlReaderInputWithEncodingName(IUnknown *stream,
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IMalloc *pMalloc,
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LPCWSTR encoding,
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BOOL hint,
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LPCWSTR base_uri,
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IXmlReaderInput **ppInput)
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{
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xmlreaderinput *readerinput;
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FIXME("%p %p %s %d %s %p: stub\n", stream, pMalloc, wine_dbgstr_w(encoding),
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hint, wine_dbgstr_w(base_uri), ppInput);
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if (!stream || !ppInput) return E_INVALIDARG;
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readerinput = HeapAlloc(GetProcessHeap(), 0, sizeof (*readerinput));
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if(!readerinput) return E_OUTOFMEMORY;
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readerinput->lpVtbl = &xmlreaderinput_vtbl;
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readerinput->ref = 1;
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IUnknown_QueryInterface(stream, &IID_IUnknown, (void**)&readerinput->input);
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*ppInput = (IXmlReaderInput*)&readerinput->lpVtbl;
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TRACE("returning iface %p\n", *ppInput);
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return S_OK;
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}
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