push 6e61d6ca5bcaf95ac09a664b4ba4f88238c927be
[wine/hacks.git] / dlls / mshtml / loadopts.c
blob8648f16b7f9782fa3f933c28155ba9e3aa685382
1 /*
2 * Copyright 2006 Jacek Caban for CodeWeavers
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 #include "config.h"
21 #include <stdarg.h>
22 #include <stdio.h>
24 #define COBJMACROS
26 #include "windef.h"
27 #include "winbase.h"
28 #include "winuser.h"
29 #include "ole2.h"
30 #include "optary.h"
32 #include "wine/debug.h"
34 #include "mshtml_private.h"
36 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
38 typedef struct load_opt {
39 DWORD option;
40 PVOID buffer;
41 DWORD size;
43 struct load_opt *next;
44 } load_opt;
46 typedef struct {
47 const IHtmlLoadOptionsVtbl *lpHtmlLoadOptionsVtbl;
49 LONG ref;
51 load_opt *opts;
52 } HTMLLoadOptions;
54 #define LOADOPTS(x) ((IHtmlLoadOptions*) &(x)->lpHtmlLoadOptionsVtbl)
56 #define LOADOPTS_THIS(iface) DEFINE_THIS(HTMLLoadOptions, HtmlLoadOptions, iface)
58 static HRESULT WINAPI HtmlLoadOptions_QueryInterface(IHtmlLoadOptions *iface,
59 REFIID riid, void **ppv)
61 HTMLLoadOptions *This = LOADOPTS_THIS(iface);
63 *ppv = NULL;
65 if(IsEqualGUID(&IID_IUnknown, riid)) {
66 TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
67 *ppv = LOADOPTS(This);
68 }else if(IsEqualGUID(&IID_IOptionArray, riid)) {
69 TRACE("(%p)->(IID_IOptionArray %p)\n", This, ppv);
70 *ppv = LOADOPTS(This);
71 }else if(IsEqualGUID(&IID_IHtmlLoadOptions, riid)) {
72 TRACE("(%p)->(IID_IHtmlLoadOptions %p)\n", This, ppv);
73 *ppv = LOADOPTS(This);
76 if(*ppv) {
77 IHtmlLoadOptions_AddRef(LOADOPTS(This));
78 return S_OK;
81 WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
82 return E_NOINTERFACE;
85 static ULONG WINAPI HtmlLoadOptions_AddRef(IHtmlLoadOptions *iface)
87 HTMLLoadOptions *This = LOADOPTS_THIS(iface);
88 LONG ref = InterlockedIncrement(&This->ref);
90 TRACE("(%p) ref=%d\n", This, ref);
92 return ref;
95 static ULONG WINAPI HtmlLoadOptions_Release(IHtmlLoadOptions *iface)
97 HTMLLoadOptions *This = LOADOPTS_THIS(iface);
98 LONG ref = InterlockedDecrement(&This->ref);
100 TRACE("(%p) ref=%d\n", This, ref);
102 if(!ref) {
103 load_opt *iter = This->opts, *last;
105 while(iter) {
106 last = iter;
107 iter = iter->next;
109 heap_free(last->buffer);
110 heap_free(last);
113 heap_free(This);
116 return ref;
119 static HRESULT WINAPI HtmlLoadOptions_QueryOption(IHtmlLoadOptions *iface, DWORD dwOption,
120 LPVOID pBuffer, ULONG *pcbBuf)
122 HTMLLoadOptions *This = LOADOPTS_THIS(iface);
123 load_opt *iter;
125 TRACE("(%p)->(%d %p %p)\n", This, dwOption, pBuffer, pcbBuf);
127 for(iter = This->opts; iter; iter = iter->next) {
128 if(iter->option == dwOption)
129 break;
132 if(!iter) {
133 *pcbBuf = 0;
134 return S_OK;
137 if(*pcbBuf < iter->size) {
138 *pcbBuf = iter->size;
139 return E_FAIL;
142 memcpy(pBuffer, iter->buffer, iter->size);
143 *pcbBuf = iter->size;
145 return S_OK;
148 static HRESULT WINAPI HtmlLoadOptions_SetOption(IHtmlLoadOptions *iface, DWORD dwOption,
149 LPVOID pBuffer, ULONG cbBuf)
151 HTMLLoadOptions *This = LOADOPTS_THIS(iface);
152 load_opt *iter = NULL;
154 TRACE("(%p)->(%d %p %d)\n", This, dwOption, pBuffer, cbBuf);
156 for(iter = This->opts; iter; iter = iter->next) {
157 if(iter->option == dwOption)
158 break;
161 if(!iter) {
162 iter = heap_alloc(sizeof(load_opt));
163 iter->next = This->opts;
164 This->opts = iter;
166 iter->option = dwOption;
167 }else {
168 heap_free(iter->buffer);
171 if(!cbBuf) {
172 iter->buffer = NULL;
173 iter->size = 0;
175 return S_OK;
178 iter->size = cbBuf;
179 iter->buffer = heap_alloc(cbBuf);
180 memcpy(iter->buffer, pBuffer, iter->size);
182 return S_OK;
185 #undef LOADOPTS_THIS
187 static const IHtmlLoadOptionsVtbl HtmlLoadOptionsVtbl = {
188 HtmlLoadOptions_QueryInterface,
189 HtmlLoadOptions_AddRef,
190 HtmlLoadOptions_Release,
191 HtmlLoadOptions_QueryOption,
192 HtmlLoadOptions_SetOption
195 HRESULT HTMLLoadOptions_Create(IUnknown *pUnkOuter, REFIID riid, void** ppv)
197 HTMLLoadOptions *ret;
198 HRESULT hres;
200 TRACE("(%p %s %p)\n", pUnkOuter, debugstr_guid(riid), ppv);
202 ret = heap_alloc(sizeof(HTMLLoadOptions));
204 ret->lpHtmlLoadOptionsVtbl = &HtmlLoadOptionsVtbl;
205 ret->ref = 1;
206 ret->opts = NULL;
208 hres = IHtmlLoadOptions_QueryInterface(LOADOPTS(ret), riid, ppv);
209 IHtmlLoadOptions_Release(LOADOPTS(ret));
211 return hres;