dlls/mshtml/propbag.c

   1 /*
   2  * Copyright 2010 Jacek Caban for CodeWeavers
   3  *
   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.
   8  *
   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.
  13  *
  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
  17  */
  18
  19 #include "config.h"
  20
  21 #include <stdarg.h>
  22
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "ole2.h"
  29 #include "shlobj.h"
  30
  31 #include "mshtml_private.h"
  32 #include "pluginhost.h"
  33
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  37
  38 typedef struct {
  39     IPropertyBag  IPropertyBag_iface;
  40     IPropertyBag2 IPropertyBag2_iface;
  41
  42     LONG ref;
  43
  44     struct list props;
  45 } PropertyBag;
  46
  47 typedef struct {
  48     struct list entry;
  49     WCHAR *name;
  50     WCHAR *value;
  51 } param_prop_t;
  52
  53 static void free_prop(param_prop_t *prop)
  54 {
  55     list_remove(&prop->entry);
  56
  57     heap_free(prop->name);
  58     heap_free(prop->value);
  59     heap_free(prop);
  60 }
  61
  62 static param_prop_t *find_prop(PropertyBag *prop_bag, const WCHAR *name)
  63 {
  64     param_prop_t *iter;
  65
  66     LIST_FOR_EACH_ENTRY(iter, &prop_bag->props, param_prop_t, entry) {
  67         if(!strcmpiW(iter->name, name))
  68             return iter;
  69     }
  70
  71     return NULL;
  72 }
  73
  74 static HRESULT add_prop(PropertyBag *prop_bag, const WCHAR *name, const WCHAR *value)
  75 {
  76     param_prop_t *prop;
  77
  78     if(!name || !value)
  79         return S_OK;
  80
  81     TRACE("%p %s %s\n", prop_bag, debugstr_w(name), debugstr_w(value));
  82
  83     prop = heap_alloc(sizeof(*prop));
  84     if(!prop)
  85         return E_OUTOFMEMORY;
  86
  87     prop->name = heap_strdupW(name);
  88     prop->value = heap_strdupW(value);
  89     if(!prop->name || !prop->value) {
  90         list_init(&prop->entry);
  91         free_prop(prop);
  92         return E_OUTOFMEMORY;
  93     }
  94
  95     list_add_tail(&prop_bag->props, &prop->entry);
  96     return S_OK;
  97 }
  98
  99 static inline PropertyBag *impl_from_IPropertyBag(IPropertyBag *iface)
 100 {
 101     return CONTAINING_RECORD(iface, PropertyBag, IPropertyBag_iface);
 102 }
 103
 104 static HRESULT WINAPI PropertyBag_QueryInterface(IPropertyBag *iface, REFIID riid, void **ppv)
 105 {
 106     PropertyBag *This = impl_from_IPropertyBag(iface);
 107
 108     if(IsEqualGUID(&IID_IUnknown, riid)) {
 109         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 110         *ppv = &This->IPropertyBag_iface;
 111     }else if(IsEqualGUID(&IID_IPropertyBag, riid)) {
 112         TRACE("(%p)->(IID_IPropertyBag %p)\n", This, ppv);
 113         *ppv = &This->IPropertyBag_iface;
 114     }else if(IsEqualGUID(&IID_IPropertyBag2, riid)) {
 115         TRACE("(%p)->(IID_IPropertyBag2 %p)\n", This, ppv);
 116         *ppv = &This->IPropertyBag2_iface;
 117     }else {
 118         WARN("Unsopported interface %s\n", debugstr_guid(riid));
 119         *ppv = NULL;
 120         return E_NOINTERFACE;
 121     }
 122
 123     IUnknown_AddRef((IUnknown*)*ppv);
 124     return S_OK;
 125 }
 126
 127 static ULONG WINAPI PropertyBag_AddRef(IPropertyBag *iface)
 128 {
 129     PropertyBag *This = impl_from_IPropertyBag(iface);
 130     LONG ref = InterlockedIncrement(&This->ref);
 131
 132     TRACE("(%p) ref=%d\n", This, ref);
 133
 134     return ref;
 135 }
 136
 137 static ULONG WINAPI PropertyBag_Release(IPropertyBag *iface)
 138 {
 139     PropertyBag *This = impl_from_IPropertyBag(iface);
 140     LONG ref = InterlockedDecrement(&This->ref);
 141
 142     TRACE("(%p) ref=%d\n", This, ref);
 143
 144     if(!ref) {
 145         while(!list_empty(&This->props))
 146             free_prop(LIST_ENTRY(This->props.next, param_prop_t, entry));
 147         heap_free(This);
 148     }
 149
 150     return ref;
 151 }
 152
 153 static HRESULT WINAPI PropertyBag_Read(IPropertyBag *iface, LPCOLESTR pszPropName, VARIANT *pVar, IErrorLog *pErrorLog)
 154 {
 155     PropertyBag *This = impl_from_IPropertyBag(iface);
 156     param_prop_t *prop;
 157     VARIANT v;
 158
 159     TRACE("(%p)->(%s %p %p)\n", This, debugstr_w(pszPropName), pVar, pErrorLog);
 160
 161     prop = find_prop(This, pszPropName);
 162     if(!prop) {
 163         TRACE("Not found\n");
 164         return E_INVALIDARG;
 165     }
 166
 167     V_BSTR(&v) = SysAllocString(prop->value);
 168     if(!V_BSTR(&v))
 169         return E_OUTOFMEMORY;
 170
 171     if(V_VT(pVar) != VT_BSTR) {
 172         HRESULT hres;
 173
 174         V_VT(&v) = VT_BSTR;
 175         hres = VariantChangeType(pVar, &v, 0, V_VT(pVar));
 176         SysFreeString(V_BSTR(&v));
 177         return hres;
 178     }
 179
 180     V_BSTR(pVar) = V_BSTR(&v);
 181     return S_OK;
 182 }
 183
 184 static HRESULT WINAPI PropertyBag_Write(IPropertyBag *iface, LPCOLESTR pszPropName, VARIANT *pVar)
 185 {
 186     PropertyBag *This = impl_from_IPropertyBag(iface);
 187     FIXME("(%p)->(%s %s)\n", This, debugstr_w(pszPropName), debugstr_variant(pVar));
 188     return E_NOTIMPL;
 189 }
 190
 191 static const IPropertyBagVtbl PropertyBagVtbl = {
 192     PropertyBag_QueryInterface,
 193     PropertyBag_AddRef,
 194     PropertyBag_Release,
 195     PropertyBag_Read,
 196     PropertyBag_Write
 197 };
 198
 199 static inline PropertyBag *impl_from_IPropertyBag2(IPropertyBag2 *iface)
 200 {
 201     return CONTAINING_RECORD(iface, PropertyBag, IPropertyBag2_iface);
 202 }
 203
 204 static HRESULT WINAPI PropertyBag2_QueryInterface(IPropertyBag2 *iface, REFIID riid, void **ppv)
 205 {
 206     PropertyBag *This = impl_from_IPropertyBag2(iface);
 207     return IPropertyBag_QueryInterface(&This->IPropertyBag_iface, riid, ppv);
 208 }
 209
 210 static ULONG WINAPI PropertyBag2_AddRef(IPropertyBag2 *iface)
 211 {
 212     PropertyBag *This = impl_from_IPropertyBag2(iface);
 213     return IPropertyBag_AddRef(&This->IPropertyBag_iface);
 214 }
 215
 216 static ULONG WINAPI PropertyBag2_Release(IPropertyBag2 *iface)
 217 {
 218     PropertyBag *This = impl_from_IPropertyBag2(iface);
 219     return IPropertyBag_Release(&This->IPropertyBag_iface);
 220 }
 221
 222 static HRESULT WINAPI PropertyBag2_Read(IPropertyBag2 *iface, ULONG cProperties, PROPBAG2 *pPropBag,
 223         IErrorLog *pErrLog, VARIANT *pvarValue, HRESULT *phrError)
 224 {
 225     PropertyBag *This = impl_from_IPropertyBag2(iface);
 226     FIXME("(%p)->(%d %p %p %p %p)\n", This, cProperties, pPropBag, pErrLog, pvarValue, phrError);
 227     return E_NOTIMPL;
 228 }
 229
 230 static HRESULT WINAPI PropertyBag2_Write(IPropertyBag2 *iface, ULONG cProperties, PROPBAG2 *pPropBag, VARIANT *pvarValue)
 231 {
 232     PropertyBag *This = impl_from_IPropertyBag2(iface);
 233     FIXME("(%p)->(%d %p %s)\n", This, cProperties, pPropBag, debugstr_variant(pvarValue));
 234     return E_NOTIMPL;
 235 }
 236
 237 static HRESULT WINAPI PropertyBag2_CountProperties(IPropertyBag2 *iface, ULONG *pcProperties)
 238 {
 239     PropertyBag *This = impl_from_IPropertyBag2(iface);
 240     FIXME("(%p)->(%p)\n", This, pcProperties);
 241     return E_NOTIMPL;
 242 }
 243
 244 static HRESULT WINAPI PropertyBag2_GetPropertyInfo(IPropertyBag2 *iface, ULONG iProperty, ULONG cProperties,
 245         PROPBAG2 *pPropBag, ULONG *pcProperties)
 246 {
 247     PropertyBag *This = impl_from_IPropertyBag2(iface);
 248     FIXME("(%p)->(%u %u %p %p)\n", This, iProperty, cProperties, pPropBag, pcProperties);
 249     return E_NOTIMPL;
 250 }
 251
 252 static HRESULT WINAPI PropertyBag2_LoadObject(IPropertyBag2 *iface, LPCOLESTR pstrName, DWORD dwHint,
 253         IUnknown *pUnkObject, IErrorLog *pErrLog)
 254 {
 255     PropertyBag *This = impl_from_IPropertyBag2(iface);
 256     FIXME("(%p)->(%s %x %p %p)\n", This, debugstr_w(pstrName), dwHint, pUnkObject, pErrLog);
 257     return E_NOTIMPL;
 258 }
 259
 260 static const IPropertyBag2Vtbl PropertyBag2Vtbl = {
 261     PropertyBag2_QueryInterface,
 262     PropertyBag2_AddRef,
 263     PropertyBag2_Release,
 264     PropertyBag2_Read,
 265     PropertyBag2_Write,
 266     PropertyBag2_CountProperties,
 267     PropertyBag2_GetPropertyInfo,
 268     PropertyBag2_LoadObject
 269 };
 270
 271 static HRESULT fill_props(nsIDOMHTMLElement *nselem, PropertyBag *prop_bag)
 272 {
 273     const PRUnichar *name, *value;
 274     nsAString name_str, value_str;
 275     nsIDOMHTMLCollection *params;
 276     nsIDOMHTMLElement *param_elem;
 277     UINT32 length, i;
 278     nsIDOMNode *nsnode;
 279     nsresult nsres;
 280     HRESULT hres = S_OK;
 281
 282     static const PRUnichar nameW[] = {'n','a','m','e',0};
 283     static const PRUnichar paramW[] = {'p','a','r','a','m',0};
 284     static const PRUnichar valueW[] = {'v','a','l','u','e',0};
 285
 286     nsAString_InitDepend(&name_str, paramW);
 287     nsres = nsIDOMHTMLElement_GetElementsByTagName(nselem, &name_str, &params);
 288     nsAString_Finish(&name_str);
 289     if(NS_FAILED(nsres))
 290         return E_FAIL;
 291
 292     nsres = nsIDOMHTMLCollection_GetLength(params, &length);
 293     if(NS_FAILED(nsres))
 294         length = 0;
 295
 296     for(i=0; i < length; i++) {
 297         nsres = nsIDOMHTMLCollection_Item(params, i, &nsnode);
 298         if(NS_FAILED(nsres)) {
 299             hres = E_FAIL;
 300             break;
 301         }
 302
 303         nsres = nsIDOMNode_QueryInterface(nsnode, &IID_nsIDOMHTMLElement, (void**)&param_elem);
 304         nsIDOMNode_Release(nsnode);
 305         if(NS_FAILED(nsres)) {
 306             hres = E_FAIL;
 307             break;
 308         }
 309
 310         nsres = get_elem_attr_value(param_elem, nameW, &name_str, &name);
 311         if(NS_SUCCEEDED(nsres)) {
 312             nsres = get_elem_attr_value(param_elem, valueW, &value_str, &value);
 313             if(NS_SUCCEEDED(nsres)) {
 314                 hres = add_prop(prop_bag, name, value);
 315                 nsAString_Finish(&value_str);
 316             }
 317
 318             nsAString_Finish(&name_str);
 319         }
 320
 321         nsIDOMHTMLElement_Release(param_elem);
 322         if(FAILED(hres))
 323             break;
 324         if(NS_FAILED(nsres)) {
 325             hres = E_FAIL;
 326             break;
 327         }
 328     }
 329
 330     nsIDOMHTMLCollection_Release(params);
 331     return hres;
 332 }
 333
 334 HRESULT create_param_prop_bag(nsIDOMHTMLElement *nselem, IPropertyBag **ret)
 335 {
 336     PropertyBag *prop_bag;
 337     HRESULT hres;
 338
 339     prop_bag = heap_alloc(sizeof(*prop_bag));
 340     if(!prop_bag)
 341         return E_OUTOFMEMORY;
 342
 343     prop_bag->IPropertyBag_iface.lpVtbl  = &PropertyBagVtbl;
 344     prop_bag->IPropertyBag2_iface.lpVtbl = &PropertyBag2Vtbl;
 345     prop_bag->ref = 1;
 346
 347     list_init(&prop_bag->props);
 348     hres = fill_props(nselem, prop_bag);
 349     if(FAILED(hres) || list_empty(&prop_bag->props)) {
 350         IPropertyBag_Release(&prop_bag->IPropertyBag_iface);
 351         *ret = NULL;
 352         return hres;
 353     }
 354
 355     *ret = &prop_bag->IPropertyBag_iface;
 356     return S_OK;
 357 }