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