Sweden-Number/dlls/mshtml/loadopts.c

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/*
* Copyright 2006 Jacek Caban for CodeWeavers
*
* 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
*/
#include <stdarg.h>
#include <stdio.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "ole2.h"
#include "optary.h"
#include "wine/debug.h"
#include "mshtml_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
typedef struct load_opt {
DWORD option;
PVOID buffer;
DWORD size;
struct load_opt *next;
} load_opt;
typedef struct {
IHtmlLoadOptions IHtmlLoadOptions_iface;
LONG ref;
load_opt *opts;
} HTMLLoadOptions;
static inline HTMLLoadOptions *impl_from_IHtmlLoadOptions(IHtmlLoadOptions *iface)
{
return CONTAINING_RECORD(iface, HTMLLoadOptions, IHtmlLoadOptions_iface);
}
static HRESULT WINAPI HtmlLoadOptions_QueryInterface(IHtmlLoadOptions *iface,
REFIID riid, void **ppv)
{
HTMLLoadOptions *This = impl_from_IHtmlLoadOptions(iface);
TRACE("(%p)->(%s %p)\n", This, debugstr_mshtml_guid(riid), ppv);
if(IsEqualGUID(&IID_IUnknown, riid)) {
*ppv = &This->IHtmlLoadOptions_iface;
}else if(IsEqualGUID(&IID_IOptionArray, riid)) {
*ppv = &This->IHtmlLoadOptions_iface;
}else if(IsEqualGUID(&IID_IHtmlLoadOptions, riid)) {
*ppv = &This->IHtmlLoadOptions_iface;
}else {
*ppv = NULL;
WARN("(%p)->(%s %p)\n", This, debugstr_mshtml_guid(riid), ppv);
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI HtmlLoadOptions_AddRef(IHtmlLoadOptions *iface)
{
HTMLLoadOptions *This = impl_from_IHtmlLoadOptions(iface);
LONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) ref=%d\n", This, ref);
return ref;
}
static ULONG WINAPI HtmlLoadOptions_Release(IHtmlLoadOptions *iface)
{
HTMLLoadOptions *This = impl_from_IHtmlLoadOptions(iface);
LONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) ref=%d\n", This, ref);
if(!ref) {
load_opt *iter = This->opts, *last;
while(iter) {
last = iter;
iter = iter->next;
heap_free(last->buffer);
heap_free(last);
}
heap_free(This);
}
return ref;
}
static HRESULT WINAPI HtmlLoadOptions_QueryOption(IHtmlLoadOptions *iface, DWORD dwOption,
LPVOID pBuffer, ULONG *pcbBuf)
{
HTMLLoadOptions *This = impl_from_IHtmlLoadOptions(iface);
load_opt *iter;
TRACE("(%p)->(%d %p %p)\n", This, dwOption, pBuffer, pcbBuf);
for(iter = This->opts; iter; iter = iter->next) {
if(iter->option == dwOption)
break;
}
if(!iter) {
*pcbBuf = 0;
return S_OK;
}
if(*pcbBuf < iter->size) {
*pcbBuf = iter->size;
return E_FAIL;
}
memcpy(pBuffer, iter->buffer, iter->size);
*pcbBuf = iter->size;
return S_OK;
}
static HRESULT WINAPI HtmlLoadOptions_SetOption(IHtmlLoadOptions *iface, DWORD dwOption,
LPVOID pBuffer, ULONG cbBuf)
{
HTMLLoadOptions *This = impl_from_IHtmlLoadOptions(iface);
load_opt *iter = NULL;
TRACE("(%p)->(%d %p %d)\n", This, dwOption, pBuffer, cbBuf);
for(iter = This->opts; iter; iter = iter->next) {
if(iter->option == dwOption)
break;
}
if(!iter) {
iter = heap_alloc(sizeof(load_opt));
iter->next = This->opts;
This->opts = iter;
iter->option = dwOption;
}else {
heap_free(iter->buffer);
}
if(!cbBuf) {
iter->buffer = NULL;
iter->size = 0;
return S_OK;
}
iter->size = cbBuf;
iter->buffer = heap_alloc(cbBuf);
memcpy(iter->buffer, pBuffer, iter->size);
return S_OK;
}
static const IHtmlLoadOptionsVtbl HtmlLoadOptionsVtbl = {
HtmlLoadOptions_QueryInterface,
HtmlLoadOptions_AddRef,
HtmlLoadOptions_Release,
HtmlLoadOptions_QueryOption,
HtmlLoadOptions_SetOption
};
HRESULT HTMLLoadOptions_Create(IUnknown *pUnkOuter, REFIID riid, void** ppv)
{
HTMLLoadOptions *ret;
HRESULT hres;
TRACE("(%p %s %p)\n", pUnkOuter, debugstr_mshtml_guid(riid), ppv);
ret = heap_alloc(sizeof(HTMLLoadOptions));
if(!ret)
return E_OUTOFMEMORY;
ret->IHtmlLoadOptions_iface.lpVtbl = &HtmlLoadOptionsVtbl;
ret->ref = 1;
ret->opts = NULL;
hres = IHtmlLoadOptions_QueryInterface(&ret->IHtmlLoadOptions_iface, riid, ppv);
IHtmlLoadOptions_Release(&ret->IHtmlLoadOptions_iface);
return hres;
}