reactos/dll/win32/msxml3/nodelist.c
2018-03-20 12:28:36 +01:00

442 lines
11 KiB
C

/*
* Node list implementation
*
* Copyright 2005 Mike McCormack
*
* 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 "config.h"
#include <stdarg.h>
#ifdef HAVE_LIBXML2
# include <libxml/parser.h>
# include <libxml/xmlerror.h>
#endif
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "ole2.h"
#include "msxml6.h"
#include "msxml2did.h"
#include "msxml_private.h"
#include "wine/debug.h"
/* This file implements the object returned by childNodes property. Note that this is
* not the IXMLDOMNodeList returned by XPath queries - it's implemented in selection.c.
* They are different because the list returned by childNodes:
* - is "live" - changes to the XML tree are automatically reflected in the list
* - doesn't supports IXMLDOMSelection
* - note that an attribute node have a text child in DOM but not in the XPath data model
* thus the child is inaccessible by an XPath query
*/
#ifdef HAVE_LIBXML2
WINE_DEFAULT_DEBUG_CHANNEL(msxml);
typedef struct
{
DispatchEx dispex;
IXMLDOMNodeList IXMLDOMNodeList_iface;
LONG ref;
xmlNodePtr parent;
xmlNodePtr current;
IEnumVARIANT *enumvariant;
} xmlnodelist;
static HRESULT nodelist_get_item(IUnknown *iface, LONG index, VARIANT *item)
{
V_VT(item) = VT_DISPATCH;
return IXMLDOMNodeList_get_item((IXMLDOMNodeList*)iface, index, (IXMLDOMNode**)&V_DISPATCH(item));
}
static const struct enumvariant_funcs nodelist_enumvariant = {
nodelist_get_item,
NULL
};
static inline xmlnodelist *impl_from_IXMLDOMNodeList( IXMLDOMNodeList *iface )
{
return CONTAINING_RECORD(iface, xmlnodelist, IXMLDOMNodeList_iface);
}
static HRESULT WINAPI xmlnodelist_QueryInterface(
IXMLDOMNodeList *iface,
REFIID riid,
void** ppvObject )
{
xmlnodelist *This = impl_from_IXMLDOMNodeList( iface );
TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppvObject);
#ifdef __REACTOS__
if (!ppvObject)
{
/* NOTE: Interface documentation for IUnknown explicitly states
* this case should return E_POINTER. Empirical data proves
* MS violates this contract and instead return E_INVALIDARG.
*/
return E_INVALIDARG;
}
#endif
if ( IsEqualGUID( riid, &IID_IUnknown ) ||
IsEqualGUID( riid, &IID_IDispatch ) ||
IsEqualGUID( riid, &IID_IXMLDOMNodeList ) )
{
*ppvObject = iface;
}
else if (IsEqualGUID( riid, &IID_IEnumVARIANT ))
{
if (!This->enumvariant)
{
HRESULT hr = create_enumvariant((IUnknown*)iface, FALSE, &nodelist_enumvariant, &This->enumvariant);
if (FAILED(hr)) return hr;
}
return IEnumVARIANT_QueryInterface(This->enumvariant, &IID_IEnumVARIANT, ppvObject);
}
else if (dispex_query_interface(&This->dispex, riid, ppvObject))
{
return *ppvObject ? S_OK : E_NOINTERFACE;
}
else
{
TRACE("interface %s not implemented\n", debugstr_guid(riid));
*ppvObject = NULL;
return E_NOINTERFACE;
}
IXMLDOMNodeList_AddRef( iface );
return S_OK;
}
static ULONG WINAPI xmlnodelist_AddRef(
IXMLDOMNodeList *iface )
{
xmlnodelist *This = impl_from_IXMLDOMNodeList( iface );
ULONG ref = InterlockedIncrement( &This->ref );
TRACE("(%p)->(%d)\n", This, ref);
return ref;
}
static ULONG WINAPI xmlnodelist_Release(
IXMLDOMNodeList *iface )
{
xmlnodelist *This = impl_from_IXMLDOMNodeList( iface );
ULONG ref = InterlockedDecrement( &This->ref );
TRACE("(%p)->(%d)\n", This, ref);
if ( ref == 0 )
{
xmldoc_release( This->parent->doc );
if (This->enumvariant) IEnumVARIANT_Release(This->enumvariant);
heap_free( This );
}
return ref;
}
static HRESULT WINAPI xmlnodelist_GetTypeInfoCount(
IXMLDOMNodeList *iface,
UINT* pctinfo )
{
xmlnodelist *This = impl_from_IXMLDOMNodeList( iface );
return IDispatchEx_GetTypeInfoCount(&This->dispex.IDispatchEx_iface, pctinfo);
}
static HRESULT WINAPI xmlnodelist_GetTypeInfo(
IXMLDOMNodeList *iface,
UINT iTInfo,
LCID lcid,
ITypeInfo** ppTInfo )
{
xmlnodelist *This = impl_from_IXMLDOMNodeList( iface );
return IDispatchEx_GetTypeInfo(&This->dispex.IDispatchEx_iface,
iTInfo, lcid, ppTInfo);
}
static HRESULT WINAPI xmlnodelist_GetIDsOfNames(
IXMLDOMNodeList *iface,
REFIID riid,
LPOLESTR* rgszNames,
UINT cNames,
LCID lcid,
DISPID* rgDispId )
{
xmlnodelist *This = impl_from_IXMLDOMNodeList( iface );
return IDispatchEx_GetIDsOfNames(&This->dispex.IDispatchEx_iface,
riid, rgszNames, cNames, lcid, rgDispId);
}
static HRESULT WINAPI xmlnodelist_Invoke(
IXMLDOMNodeList *iface,
DISPID dispIdMember,
REFIID riid,
LCID lcid,
WORD wFlags,
DISPPARAMS* pDispParams,
VARIANT* pVarResult,
EXCEPINFO* pExcepInfo,
UINT* puArgErr )
{
xmlnodelist *This = impl_from_IXMLDOMNodeList( iface );
return IDispatchEx_Invoke(&This->dispex.IDispatchEx_iface,
dispIdMember, riid, lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
}
static HRESULT WINAPI xmlnodelist_get_item(
IXMLDOMNodeList* iface,
LONG index,
IXMLDOMNode** listItem)
{
xmlnodelist *This = impl_from_IXMLDOMNodeList( iface );
xmlNodePtr curr;
LONG nodeIndex = 0;
TRACE("(%p)->(%d %p)\n", This, index, listItem);
if(!listItem)
return E_INVALIDARG;
*listItem = NULL;
if (index < 0)
return S_FALSE;
curr = This->parent->children;
while(curr)
{
if(nodeIndex++ == index) break;
curr = curr->next;
}
if(!curr) return S_FALSE;
*listItem = create_node( curr );
return S_OK;
}
static HRESULT WINAPI xmlnodelist_get_length(
IXMLDOMNodeList* iface,
LONG* listLength)
{
xmlNodePtr curr;
LONG nodeCount = 0;
xmlnodelist *This = impl_from_IXMLDOMNodeList( iface );
TRACE("(%p)->(%p)\n", This, listLength);
if(!listLength)
return E_INVALIDARG;
curr = This->parent->children;
while (curr)
{
nodeCount++;
curr = curr->next;
}
*listLength = nodeCount;
return S_OK;
}
static HRESULT WINAPI xmlnodelist_nextNode(
IXMLDOMNodeList* iface,
IXMLDOMNode** nextItem)
{
xmlnodelist *This = impl_from_IXMLDOMNodeList( iface );
TRACE("(%p)->(%p)\n", This, nextItem );
if(!nextItem)
return E_INVALIDARG;
*nextItem = NULL;
if (!This->current)
return S_FALSE;
*nextItem = create_node( This->current );
This->current = This->current->next;
return S_OK;
}
static HRESULT WINAPI xmlnodelist_reset(
IXMLDOMNodeList* iface)
{
xmlnodelist *This = impl_from_IXMLDOMNodeList( iface );
TRACE("%p\n", This);
This->current = This->parent->children;
return S_OK;
}
static HRESULT WINAPI xmlnodelist__newEnum(
IXMLDOMNodeList* iface,
IUnknown** enumv)
{
xmlnodelist *This = impl_from_IXMLDOMNodeList( iface );
TRACE("(%p)->(%p)\n", This, enumv);
return create_enumvariant((IUnknown*)iface, TRUE, &nodelist_enumvariant, (IEnumVARIANT**)enumv);
}
static const struct IXMLDOMNodeListVtbl xmlnodelist_vtbl =
{
xmlnodelist_QueryInterface,
xmlnodelist_AddRef,
xmlnodelist_Release,
xmlnodelist_GetTypeInfoCount,
xmlnodelist_GetTypeInfo,
xmlnodelist_GetIDsOfNames,
xmlnodelist_Invoke,
xmlnodelist_get_item,
xmlnodelist_get_length,
xmlnodelist_nextNode,
xmlnodelist_reset,
xmlnodelist__newEnum,
};
static HRESULT xmlnodelist_get_dispid(IUnknown *iface, BSTR name, DWORD flags, DISPID *dispid)
{
WCHAR *ptr;
int idx = 0;
for(ptr = name; *ptr && isdigitW(*ptr); ptr++)
idx = idx*10 + (*ptr-'0');
if(*ptr)
return DISP_E_UNKNOWNNAME;
*dispid = DISPID_DOM_COLLECTION_BASE + idx;
TRACE("ret %x\n", *dispid);
return S_OK;
}
static HRESULT xmlnodelist_invoke(IUnknown *iface, DISPID id, LCID lcid, WORD flags, DISPPARAMS *params,
VARIANT *res, EXCEPINFO *ei)
{
xmlnodelist *This = impl_from_IXMLDOMNodeList( (IXMLDOMNodeList*)iface );
TRACE("(%p)->(%x %x %x %p %p %p)\n", This, id, lcid, flags, params, res, ei);
if (id >= DISPID_DOM_COLLECTION_BASE && id <= DISPID_DOM_COLLECTION_MAX)
{
switch(flags)
{
case DISPATCH_PROPERTYGET:
{
IXMLDOMNode *disp = NULL;
V_VT(res) = VT_DISPATCH;
IXMLDOMNodeList_get_item(&This->IXMLDOMNodeList_iface, id - DISPID_DOM_COLLECTION_BASE, &disp);
V_DISPATCH(res) = (IDispatch*)disp;
break;
}
default:
{
FIXME("unimplemented flags %x\n", flags);
break;
}
}
}
else if (id == DISPID_VALUE)
{
switch(flags)
{
case DISPATCH_METHOD|DISPATCH_PROPERTYGET:
case DISPATCH_PROPERTYGET:
case DISPATCH_METHOD:
{
IXMLDOMNode *item;
VARIANT index;
HRESULT hr;
if (params->cArgs - params->cNamedArgs != 1) return DISP_E_BADPARAMCOUNT;
VariantInit(&index);
hr = VariantChangeType(&index, params->rgvarg, 0, VT_I4);
if(FAILED(hr))
{
FIXME("failed to convert arg, %s\n", debugstr_variant(params->rgvarg));
return hr;
}
IXMLDOMNodeList_get_item(&This->IXMLDOMNodeList_iface, V_I4(&index), &item);
V_VT(res) = VT_DISPATCH;
V_DISPATCH(res) = (IDispatch*)item;
break;
}
default:
{
FIXME("DISPID_VALUE: unimplemented flags %x\n", flags);
break;
}
}
}
else
return DISP_E_UNKNOWNNAME;
TRACE("ret %p\n", V_DISPATCH(res));
return S_OK;
}
static const dispex_static_data_vtbl_t xmlnodelist_dispex_vtbl = {
xmlnodelist_get_dispid,
xmlnodelist_invoke
};
static const tid_t xmlnodelist_iface_tids[] = {
IXMLDOMNodeList_tid,
0
};
static dispex_static_data_t xmlnodelist_dispex = {
&xmlnodelist_dispex_vtbl,
IXMLDOMNodeList_tid,
NULL,
xmlnodelist_iface_tids
};
IXMLDOMNodeList* create_children_nodelist( xmlNodePtr node )
{
xmlnodelist *This;
This = heap_alloc( sizeof *This );
if ( !This )
return NULL;
This->IXMLDOMNodeList_iface.lpVtbl = &xmlnodelist_vtbl;
This->ref = 1;
This->parent = node;
This->current = node->children;
This->enumvariant = NULL;
xmldoc_add_ref( node->doc );
init_dispex(&This->dispex, (IUnknown*)&This->IXMLDOMNodeList_iface, &xmlnodelist_dispex);
return &This->IXMLDOMNodeList_iface;
}
#endif