reactos/dll/win32/msxml3/comment.c

   1 /*
   2  *    DOM comment node implementation
   3  *
   4  * Copyright 2006 Huw Davies
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "precomp.h"
  22
  23 #ifdef HAVE_LIBXML2
  24
  25 typedef struct _domcomment
  26 {
  27     xmlnode node;
  28     IXMLDOMComment IXMLDOMComment_iface;
  29     LONG ref;
  30 } domcomment;
  31
  32 static const tid_t domcomment_se_tids[] = {
  33     IXMLDOMNode_tid,
  34     IXMLDOMComment_tid,
  35     NULL_tid
  36 };
  37
  38 static inline domcomment *impl_from_IXMLDOMComment( IXMLDOMComment *iface )
  39 {
  40     return CONTAINING_RECORD(iface, domcomment, IXMLDOMComment_iface);
  41 }
  42
  43 static HRESULT WINAPI domcomment_QueryInterface(
  44     IXMLDOMComment *iface,
  45     REFIID riid,
  46     void** ppvObject )
  47 {
  48     domcomment *This = impl_from_IXMLDOMComment( iface );
  49     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppvObject);
  50
  51     if ( IsEqualGUID( riid, &IID_IXMLDOMComment ) ||
  52          IsEqualGUID( riid, &IID_IXMLDOMCharacterData) ||
  53          IsEqualGUID( riid, &IID_IXMLDOMNode ) ||
  54          IsEqualGUID( riid, &IID_IDispatch ) ||
  55          IsEqualGUID( riid, &IID_IUnknown ) )
  56     {
  57         *ppvObject = iface;
  58     }
  59     else if(node_query_interface(&This->node, riid, ppvObject))
  60     {
  61         return *ppvObject ? S_OK : E_NOINTERFACE;
  62     }
  63     else if(IsEqualGUID( riid, &IID_ISupportErrorInfo ))
  64     {
  65         return node_create_supporterrorinfo(domcomment_se_tids, ppvObject);
  66     }
  67     else
  68     {
  69         TRACE("Unsupported interface %s\n", debugstr_guid(riid));
  70         *ppvObject = NULL;
  71         return E_NOINTERFACE;
  72     }
  73
  74     IXMLDOMComment_AddRef(iface);
  75     return S_OK;
  76 }
  77
  78 static ULONG WINAPI domcomment_AddRef(
  79     IXMLDOMComment *iface )
  80 {
  81     domcomment *This = impl_from_IXMLDOMComment( iface );
  82     ULONG ref = InterlockedIncrement( &This->ref );
  83     TRACE("(%p)->(%d)\n", This, ref);
  84     return ref;
  85 }
  86
  87 static ULONG WINAPI domcomment_Release(
  88     IXMLDOMComment *iface )
  89 {
  90     domcomment *This = impl_from_IXMLDOMComment( iface );
  91     ULONG ref = InterlockedDecrement( &This->ref );
  92
  93     TRACE("(%p)->(%d)\n", This, ref);
  94     if ( ref == 0 )
  95     {
  96         destroy_xmlnode(&This->node);
  97         heap_free( This );
  98     }
  99
 100     return ref;
 101 }
 102
 103 static HRESULT WINAPI domcomment_GetTypeInfoCount(
 104     IXMLDOMComment *iface,
 105     UINT* pctinfo )
 106 {
 107     domcomment *This = impl_from_IXMLDOMComment( iface );
 108     return IDispatchEx_GetTypeInfoCount(&This->node.dispex.IDispatchEx_iface, pctinfo);
 109 }
 110
 111 static HRESULT WINAPI domcomment_GetTypeInfo(
 112     IXMLDOMComment *iface,
 113     UINT iTInfo, LCID lcid,
 114     ITypeInfo** ppTInfo )
 115 {
 116     domcomment *This = impl_from_IXMLDOMComment( iface );
 117     return IDispatchEx_GetTypeInfo(&This->node.dispex.IDispatchEx_iface,
 118         iTInfo, lcid, ppTInfo);
 119 }
 120
 121 static HRESULT WINAPI domcomment_GetIDsOfNames(
 122     IXMLDOMComment *iface,
 123     REFIID riid, LPOLESTR* rgszNames,
 124     UINT cNames, LCID lcid, DISPID* rgDispId )
 125 {
 126     domcomment *This = impl_from_IXMLDOMComment( iface );
 127     return IDispatchEx_GetIDsOfNames(&This->node.dispex.IDispatchEx_iface,
 128         riid, rgszNames, cNames, lcid, rgDispId);
 129 }
 130
 131 static HRESULT WINAPI domcomment_Invoke(
 132     IXMLDOMComment *iface,
 133     DISPID dispIdMember, REFIID riid, LCID lcid,
 134     WORD wFlags, DISPPARAMS* pDispParams, VARIANT* pVarResult,
 135     EXCEPINFO* pExcepInfo, UINT* puArgErr )
 136 {
 137     domcomment *This = impl_from_IXMLDOMComment( iface );
 138     return IDispatchEx_Invoke(&This->node.dispex.IDispatchEx_iface,
 139         dispIdMember, riid, lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 140 }
 141
 142 static HRESULT WINAPI domcomment_get_nodeName(
 143     IXMLDOMComment *iface,
 144     BSTR* p )
 145 {
 146     domcomment *This = impl_from_IXMLDOMComment( iface );
 147
 148     static const WCHAR commentW[] = {'#','c','o','m','m','e','n','t',0};
 149
 150     TRACE("(%p)->(%p)\n", This, p);
 151
 152     return return_bstr(commentW, p);
 153 }
 154
 155 static HRESULT WINAPI domcomment_get_nodeValue(
 156     IXMLDOMComment *iface,
 157     VARIANT* value)
 158 {
 159     domcomment *This = impl_from_IXMLDOMComment( iface );
 160
 161     TRACE("(%p)->(%p)\n", This, value);
 162
 163     return node_get_content(&This->node, value);
 164 }
 165
 166 static HRESULT WINAPI domcomment_put_nodeValue(
 167     IXMLDOMComment *iface,
 168     VARIANT value)
 169 {
 170     domcomment *This = impl_from_IXMLDOMComment( iface );
 171
 172     TRACE("(%p)->(%s)\n", This, debugstr_variant(&value));
 173
 174     return node_put_value(&This->node, &value);
 175 }
 176
 177 static HRESULT WINAPI domcomment_get_nodeType(
 178     IXMLDOMComment *iface,
 179     DOMNodeType* domNodeType )
 180 {
 181     domcomment *This = impl_from_IXMLDOMComment( iface );
 182
 183     TRACE("(%p)->(%p)\n", This, domNodeType);
 184
 185     *domNodeType = NODE_COMMENT;
 186     return S_OK;
 187 }
 188
 189 static HRESULT WINAPI domcomment_get_parentNode(
 190     IXMLDOMComment *iface,
 191     IXMLDOMNode** parent )
 192 {
 193     domcomment *This = impl_from_IXMLDOMComment( iface );
 194
 195     TRACE("(%p)->(%p)\n", This, parent);
 196
 197     return node_get_parent(&This->node, parent);
 198 }
 199
 200 static HRESULT WINAPI domcomment_get_childNodes(
 201     IXMLDOMComment *iface,
 202     IXMLDOMNodeList** outList)
 203 {
 204     domcomment *This = impl_from_IXMLDOMComment( iface );
 205
 206     TRACE("(%p)->(%p)\n", This, outList);
 207
 208     return node_get_child_nodes(&This->node, outList);
 209 }
 210
 211 static HRESULT WINAPI domcomment_get_firstChild(
 212     IXMLDOMComment *iface,
 213     IXMLDOMNode** domNode)
 214 {
 215     domcomment *This = impl_from_IXMLDOMComment( iface );
 216
 217     TRACE("(%p)->(%p)\n", This, domNode);
 218
 219     return return_null_node(domNode);
 220 }
 221
 222 static HRESULT WINAPI domcomment_get_lastChild(
 223     IXMLDOMComment *iface,
 224     IXMLDOMNode** domNode)
 225 {
 226     domcomment *This = impl_from_IXMLDOMComment( iface );
 227
 228     TRACE("(%p)->(%p)\n", This, domNode);
 229
 230     return return_null_node(domNode);
 231 }
 232
 233 static HRESULT WINAPI domcomment_get_previousSibling(
 234     IXMLDOMComment *iface,
 235     IXMLDOMNode** domNode)
 236 {
 237     domcomment *This = impl_from_IXMLDOMComment( iface );
 238
 239     TRACE("(%p)->(%p)\n", This, domNode);
 240
 241     return node_get_previous_sibling(&This->node, domNode);
 242 }
 243
 244 static HRESULT WINAPI domcomment_get_nextSibling(
 245     IXMLDOMComment *iface,
 246     IXMLDOMNode** domNode)
 247 {
 248     domcomment *This = impl_from_IXMLDOMComment( iface );
 249
 250     TRACE("(%p)->(%p)\n", This, domNode);
 251
 252     return node_get_next_sibling(&This->node, domNode);
 253 }
 254
 255 static HRESULT WINAPI domcomment_get_attributes(
 256     IXMLDOMComment *iface,
 257     IXMLDOMNamedNodeMap** attributeMap)
 258 {
 259     domcomment *This = impl_from_IXMLDOMComment( iface );
 260
 261     TRACE("(%p)->(%p)\n", This, attributeMap);
 262
 263     return return_null_ptr((void**)attributeMap);
 264 }
 265
 266 static HRESULT WINAPI domcomment_insertBefore(
 267     IXMLDOMComment *iface,
 268     IXMLDOMNode* newNode, VARIANT refChild,
 269     IXMLDOMNode** outOldNode)
 270 {
 271     domcomment *This = impl_from_IXMLDOMComment( iface );
 272
 273     FIXME("(%p)->(%p %s %p) needs test\n", This, newNode, debugstr_variant(&refChild), outOldNode);
 274
 275     return node_insert_before(&This->node, newNode, &refChild, outOldNode);
 276 }
 277
 278 static HRESULT WINAPI domcomment_replaceChild(
 279     IXMLDOMComment *iface,
 280     IXMLDOMNode* newNode,
 281     IXMLDOMNode* oldNode,
 282     IXMLDOMNode** outOldNode)
 283 {
 284     domcomment *This = impl_from_IXMLDOMComment( iface );
 285
 286     FIXME("(%p)->(%p %p %p) needs tests\n", This, newNode, oldNode, outOldNode);
 287
 288     return node_replace_child(&This->node, newNode, oldNode, outOldNode);
 289 }
 290
 291 static HRESULT WINAPI domcomment_removeChild(
 292     IXMLDOMComment *iface,
 293     IXMLDOMNode *child, IXMLDOMNode **oldChild)
 294 {
 295     domcomment *This = impl_from_IXMLDOMComment( iface );
 296     TRACE("(%p)->(%p %p)\n", This, child, oldChild);
 297     return node_remove_child(&This->node, child, oldChild);
 298 }
 299
 300 static HRESULT WINAPI domcomment_appendChild(
 301     IXMLDOMComment *iface,
 302     IXMLDOMNode *child, IXMLDOMNode **outChild)
 303 {
 304     domcomment *This = impl_from_IXMLDOMComment( iface );
 305     TRACE("(%p)->(%p %p)\n", This, child, outChild);
 306     return node_append_child(&This->node, child, outChild);
 307 }
 308
 309 static HRESULT WINAPI domcomment_hasChildNodes(
 310     IXMLDOMComment *iface,
 311     VARIANT_BOOL *ret)
 312 {
 313     domcomment *This = impl_from_IXMLDOMComment( iface );
 314     TRACE("(%p)->(%p)\n", This, ret);
 315     return return_var_false(ret);
 316 }
 317
 318 static HRESULT WINAPI domcomment_get_ownerDocument(
 319     IXMLDOMComment   *iface,
 320     IXMLDOMDocument **doc)
 321 {
 322     domcomment *This = impl_from_IXMLDOMComment( iface );
 323     TRACE("(%p)->(%p)\n", This, doc);
 324     return node_get_owner_doc(&This->node, doc);
 325 }
 326
 327 static HRESULT WINAPI domcomment_cloneNode(
 328     IXMLDOMComment *iface,
 329     VARIANT_BOOL deep, IXMLDOMNode** outNode)
 330 {
 331     domcomment *This = impl_from_IXMLDOMComment( iface );
 332     TRACE("(%p)->(%d %p)\n", This, deep, outNode);
 333     return node_clone( &This->node, deep, outNode );
 334 }
 335
 336 static HRESULT WINAPI domcomment_get_nodeTypeString(
 337     IXMLDOMComment *iface,
 338     BSTR* p)
 339 {
 340     domcomment *This = impl_from_IXMLDOMComment( iface );
 341     static const WCHAR commentW[] = {'c','o','m','m','e','n','t',0};
 342
 343     TRACE("(%p)->(%p)\n", This, p);
 344
 345     return return_bstr(commentW, p);
 346 }
 347
 348 static HRESULT WINAPI domcomment_get_text(
 349     IXMLDOMComment *iface,
 350     BSTR* p)
 351 {
 352     domcomment *This = impl_from_IXMLDOMComment( iface );
 353     TRACE("(%p)->(%p)\n", This, p);
 354     return node_get_text(&This->node, p);
 355 }
 356
 357 static HRESULT WINAPI domcomment_put_text(
 358     IXMLDOMComment *iface,
 359     BSTR p)
 360 {
 361     domcomment *This = impl_from_IXMLDOMComment( iface );
 362     TRACE("(%p)->(%s)\n", This, debugstr_w(p));
 363     return node_put_text( &This->node, p );
 364 }
 365
 366 static HRESULT WINAPI domcomment_get_specified(
 367     IXMLDOMComment *iface,
 368     VARIANT_BOOL* isSpecified)
 369 {
 370     domcomment *This = impl_from_IXMLDOMComment( iface );
 371     FIXME("(%p)->(%p) stub!\n", This, isSpecified);
 372     *isSpecified = VARIANT_TRUE;
 373     return S_OK;
 374 }
 375
 376 static HRESULT WINAPI domcomment_get_definition(
 377     IXMLDOMComment *iface,
 378     IXMLDOMNode** definitionNode)
 379 {
 380     domcomment *This = impl_from_IXMLDOMComment( iface );
 381     FIXME("(%p)->(%p)\n", This, definitionNode);
 382     return E_NOTIMPL;
 383 }
 384
 385 static HRESULT WINAPI domcomment_get_nodeTypedValue(
 386     IXMLDOMComment *iface,
 387     VARIANT* v)
 388 {
 389     domcomment *This = impl_from_IXMLDOMComment( iface );
 390     TRACE("(%p)->(%p)\n", This, v);
 391     return node_get_content(&This->node, v);
 392 }
 393
 394 static HRESULT WINAPI domcomment_put_nodeTypedValue(
 395     IXMLDOMComment *iface,
 396     VARIANT typedValue)
 397 {
 398     domcomment *This = impl_from_IXMLDOMComment( iface );
 399     FIXME("(%p)->(%s)\n", This, debugstr_variant(&typedValue));
 400     return E_NOTIMPL;
 401 }
 402
 403 static HRESULT WINAPI domcomment_get_dataType(
 404     IXMLDOMComment *iface,
 405     VARIANT* typename)
 406 {
 407     domcomment *This = impl_from_IXMLDOMComment( iface );
 408     TRACE("(%p)->(%p)\n", This, typename);
 409     return return_null_var( typename );
 410 }
 411
 412 static HRESULT WINAPI domcomment_put_dataType(
 413     IXMLDOMComment *iface,
 414     BSTR p)
 415 {
 416     domcomment *This = impl_from_IXMLDOMComment( iface );
 417
 418     TRACE("(%p)->(%s)\n", This, debugstr_w(p));
 419
 420     if(!p)
 421         return E_INVALIDARG;
 422
 423     return E_FAIL;
 424 }
 425
 426 static HRESULT WINAPI domcomment_get_xml(
 427     IXMLDOMComment *iface,
 428     BSTR* p)
 429 {
 430     domcomment *This = impl_from_IXMLDOMComment( iface );
 431
 432     TRACE("(%p)->(%p)\n", This, p);
 433
 434     return node_get_xml(&This->node, FALSE, p);
 435 }
 436
 437 static HRESULT WINAPI domcomment_transformNode(
 438     IXMLDOMComment *iface,
 439     IXMLDOMNode *node, BSTR *p)
 440 {
 441     domcomment *This = impl_from_IXMLDOMComment( iface );
 442     TRACE("(%p)->(%p %p)\n", This, node, p);
 443     return node_transform_node(&This->node, node, p);
 444 }
 445
 446 static HRESULT WINAPI domcomment_selectNodes(
 447     IXMLDOMComment *iface,
 448     BSTR p, IXMLDOMNodeList** outList)
 449 {
 450     domcomment *This = impl_from_IXMLDOMComment( iface );
 451     TRACE("(%p)->(%s %p)\n", This, debugstr_w(p), outList);
 452     return node_select_nodes(&This->node, p, outList);
 453 }
 454
 455 static HRESULT WINAPI domcomment_selectSingleNode(
 456     IXMLDOMComment *iface,
 457     BSTR p, IXMLDOMNode** outNode)
 458 {
 459     domcomment *This = impl_from_IXMLDOMComment( iface );
 460     TRACE("(%p)->(%s %p)\n", This, debugstr_w(p), outNode);
 461     return node_select_singlenode(&This->node, p, outNode);
 462 }
 463
 464 static HRESULT WINAPI domcomment_get_parsed(
 465     IXMLDOMComment *iface,
 466     VARIANT_BOOL* isParsed)
 467 {
 468     domcomment *This = impl_from_IXMLDOMComment( iface );
 469     FIXME("(%p)->(%p) stub!\n", This, isParsed);
 470     *isParsed = VARIANT_TRUE;
 471     return S_OK;
 472 }
 473
 474 static HRESULT WINAPI domcomment_get_namespaceURI(
 475     IXMLDOMComment *iface,
 476     BSTR* p)
 477 {
 478     domcomment *This = impl_from_IXMLDOMComment( iface );
 479     TRACE("(%p)->(%p)\n", This, p);
 480     return node_get_namespaceURI(&This->node, p);
 481 }
 482
 483 static HRESULT WINAPI domcomment_get_prefix(
 484     IXMLDOMComment *iface,
 485     BSTR* prefix)
 486 {
 487     domcomment *This = impl_from_IXMLDOMComment( iface );
 488     TRACE("(%p)->(%p)\n", This, prefix);
 489     return return_null_bstr( prefix );
 490 }
 491
 492 static HRESULT WINAPI domcomment_get_baseName(
 493     IXMLDOMComment *iface,
 494     BSTR* name)
 495 {
 496     domcomment *This = impl_from_IXMLDOMComment( iface );
 497     TRACE("(%p)->(%p)\n", This, name);
 498     return return_null_bstr( name );
 499 }
 500
 501 static HRESULT WINAPI domcomment_transformNodeToObject(
 502     IXMLDOMComment *iface,
 503     IXMLDOMNode* domNode, VARIANT var1)
 504 {
 505     domcomment *This = impl_from_IXMLDOMComment( iface );
 506     FIXME("(%p)->(%p %s)\n", This, domNode, debugstr_variant(&var1));
 507     return E_NOTIMPL;
 508 }
 509
 510 static HRESULT WINAPI domcomment_get_data(
 511     IXMLDOMComment *iface,
 512     BSTR *p)
 513 {
 514     domcomment *This = impl_from_IXMLDOMComment( iface );
 515     HRESULT hr;
 516     VARIANT vRet;
 517
 518     TRACE("(%p)->(%p)\n", This, p);
 519
 520     if(!p)
 521         return E_INVALIDARG;
 522
 523     hr = IXMLDOMComment_get_nodeValue( iface, &vRet );
 524     if(hr == S_OK)
 525     {
 526         *p = V_BSTR(&vRet);
 527     }
 528
 529     return hr;
 530 }
 531
 532 static HRESULT WINAPI domcomment_put_data(
 533     IXMLDOMComment *iface,
 534     BSTR data)
 535 {
 536     domcomment *This = impl_from_IXMLDOMComment( iface );
 537     TRACE("(%p)->(%s)\n", This, debugstr_w(data));
 538     return node_set_content(&This->node, data);
 539 }
 540
 541 static HRESULT WINAPI domcomment_get_length(
 542     IXMLDOMComment *iface,
 543     LONG *len)
 544 {
 545     domcomment *This = impl_from_IXMLDOMComment( iface );
 546     HRESULT hr;
 547     BSTR data;
 548
 549     TRACE("(%p)->(%p)\n", This, len);
 550
 551     if(!len)
 552         return E_INVALIDARG;
 553
 554     hr = IXMLDOMComment_get_data(iface, &data);
 555     if(hr == S_OK)
 556     {
 557         *len = SysStringLen(data);
 558         SysFreeString(data);
 559     }
 560
 561     return hr;
 562 }
 563
 564 static HRESULT WINAPI domcomment_substringData(
 565     IXMLDOMComment *iface,
 566     LONG offset, LONG count, BSTR *p)
 567 {
 568     domcomment *This = impl_from_IXMLDOMComment( iface );
 569     HRESULT hr;
 570     BSTR data;
 571
 572     TRACE("(%p)->(%d %d %p)\n", This, offset, count, p);
 573
 574     if(!p)
 575         return E_INVALIDARG;
 576
 577     *p = NULL;
 578     if(offset < 0 || count < 0)
 579         return E_INVALIDARG;
 580
 581     if(count == 0)
 582         return S_FALSE;
 583
 584     hr = IXMLDOMComment_get_data(iface, &data);
 585     if(hr == S_OK)
 586     {
 587         LONG len = SysStringLen(data);
 588
 589         if(offset < len)
 590         {
 591             if(offset + count > len)
 592                 *p = SysAllocString(&data[offset]);
 593             else
 594                 *p = SysAllocStringLen(&data[offset], count);
 595         }
 596         else
 597             hr = S_FALSE;
 598
 599         SysFreeString(data);
 600     }
 601
 602     return hr;
 603 }
 604
 605 static HRESULT WINAPI domcomment_appendData(
 606     IXMLDOMComment *iface,
 607     BSTR p)
 608 {
 609     domcomment *This = impl_from_IXMLDOMComment( iface );
 610     HRESULT hr;
 611     BSTR data;
 612     LONG p_len;
 613
 614     TRACE("(%p)->(%s)\n", This, debugstr_w(p));
 615
 616     /* Nothing to do if NULL or an Empty string passed in. */
 617     if((p_len = SysStringLen(p)) == 0) return S_OK;
 618
 619     hr = IXMLDOMComment_get_data(iface, &data);
 620     if(hr == S_OK)
 621     {
 622         LONG len = SysStringLen(data);
 623         BSTR str = SysAllocStringLen(NULL, p_len + len);
 624
 625         memcpy(str, data, len*sizeof(WCHAR));
 626         memcpy(&str[len], p, p_len*sizeof(WCHAR));
 627         str[len+p_len] = 0;
 628
 629         hr = IXMLDOMComment_put_data(iface, str);
 630
 631         SysFreeString(str);
 632         SysFreeString(data);
 633     }
 634
 635     return hr;
 636 }
 637
 638 static HRESULT WINAPI domcomment_insertData(
 639     IXMLDOMComment *iface,
 640     LONG offset, BSTR p)
 641 {
 642     domcomment *This = impl_from_IXMLDOMComment( iface );
 643     HRESULT hr;
 644     BSTR data;
 645     LONG p_len;
 646
 647     TRACE("(%p)->(%d %s)\n", This, offset, debugstr_w(p));
 648
 649     /* If have a NULL or empty string, don't do anything. */
 650     if((p_len = SysStringLen(p)) == 0)
 651         return S_OK;
 652
 653     if(offset < 0)
 654     {
 655         return E_INVALIDARG;
 656     }
 657
 658     hr = IXMLDOMComment_get_data(iface, &data);
 659     if(hr == S_OK)
 660     {
 661         LONG len = SysStringLen(data);
 662         BSTR str;
 663
 664         if(len < offset)
 665         {
 666             SysFreeString(data);
 667             return E_INVALIDARG;
 668         }
 669
 670         str = SysAllocStringLen(NULL, len + p_len);
 671         /* start part, supplied string and end part */
 672         memcpy(str, data, offset*sizeof(WCHAR));
 673         memcpy(&str[offset], p, p_len*sizeof(WCHAR));
 674         memcpy(&str[offset+p_len], &data[offset], (len-offset)*sizeof(WCHAR));
 675         str[len+p_len] = 0;
 676
 677         hr = IXMLDOMComment_put_data(iface, str);
 678
 679         SysFreeString(str);
 680         SysFreeString(data);
 681     }
 682
 683     return hr;
 684 }
 685
 686 static HRESULT WINAPI domcomment_deleteData(
 687     IXMLDOMComment *iface,
 688     LONG offset, LONG count)
 689 {
 690     HRESULT hr;
 691     LONG len = -1;
 692     BSTR str;
 693
 694     TRACE("(%p)->(%d %d)\n", iface, offset, count);
 695
 696     hr = IXMLDOMComment_get_length(iface, &len);
 697     if(hr != S_OK) return hr;
 698
 699     if((offset < 0) || (offset > len) || (count < 0))
 700         return E_INVALIDARG;
 701
 702     if(len == 0) return S_OK;
 703
 704     /* cutting start or end */
 705     if((offset == 0) || ((count + offset) >= len))
 706     {
 707         if(offset == 0)
 708             IXMLDOMComment_substringData(iface, count, len - count, &str);
 709         else
 710             IXMLDOMComment_substringData(iface, 0, offset, &str);
 711         hr = IXMLDOMComment_put_data(iface, str);
 712     }
 713     else
 714     /* cutting from the inside */
 715     {
 716         BSTR str_end;
 717
 718         IXMLDOMComment_substringData(iface, 0, offset, &str);
 719         IXMLDOMComment_substringData(iface, offset + count, len - count, &str_end);
 720
 721         hr = IXMLDOMComment_put_data(iface, str);
 722         if(hr == S_OK)
 723             hr = IXMLDOMComment_appendData(iface, str_end);
 724
 725         SysFreeString(str_end);
 726     }
 727
 728     SysFreeString(str);
 729
 730     return hr;
 731 }
 732
 733 static HRESULT WINAPI domcomment_replaceData(
 734     IXMLDOMComment *iface,
 735     LONG offset, LONG count, BSTR p)
 736 {
 737     domcomment *This = impl_from_IXMLDOMComment( iface );
 738     HRESULT hr;
 739
 740     TRACE("(%p)->(%d %d %s)\n", This, offset, count, debugstr_w(p));
 741
 742     hr = IXMLDOMComment_deleteData(iface, offset, count);
 743
 744     if (hr == S_OK)
 745        hr = IXMLDOMComment_insertData(iface, offset, p);
 746
 747     return hr;
 748 }
 749
 750 static const struct IXMLDOMCommentVtbl domcomment_vtbl =
 751 {
 752     domcomment_QueryInterface,
 753     domcomment_AddRef,
 754     domcomment_Release,
 755     domcomment_GetTypeInfoCount,
 756     domcomment_GetTypeInfo,
 757     domcomment_GetIDsOfNames,
 758     domcomment_Invoke,
 759     domcomment_get_nodeName,
 760     domcomment_get_nodeValue,
 761     domcomment_put_nodeValue,
 762     domcomment_get_nodeType,
 763     domcomment_get_parentNode,
 764     domcomment_get_childNodes,
 765     domcomment_get_firstChild,
 766     domcomment_get_lastChild,
 767     domcomment_get_previousSibling,
 768     domcomment_get_nextSibling,
 769     domcomment_get_attributes,
 770     domcomment_insertBefore,
 771     domcomment_replaceChild,
 772     domcomment_removeChild,
 773     domcomment_appendChild,
 774     domcomment_hasChildNodes,
 775     domcomment_get_ownerDocument,
 776     domcomment_cloneNode,
 777     domcomment_get_nodeTypeString,
 778     domcomment_get_text,
 779     domcomment_put_text,
 780     domcomment_get_specified,
 781     domcomment_get_definition,
 782     domcomment_get_nodeTypedValue,
 783     domcomment_put_nodeTypedValue,
 784     domcomment_get_dataType,
 785     domcomment_put_dataType,
 786     domcomment_get_xml,
 787     domcomment_transformNode,
 788     domcomment_selectNodes,
 789     domcomment_selectSingleNode,
 790     domcomment_get_parsed,
 791     domcomment_get_namespaceURI,
 792     domcomment_get_prefix,
 793     domcomment_get_baseName,
 794     domcomment_transformNodeToObject,
 795     domcomment_get_data,
 796     domcomment_put_data,
 797     domcomment_get_length,
 798     domcomment_substringData,
 799     domcomment_appendData,
 800     domcomment_insertData,
 801     domcomment_deleteData,
 802     domcomment_replaceData
 803 };
 804
 805 static const tid_t domcomment_iface_tids[] = {
 806     IXMLDOMComment_tid,
 807     0
 808 };
 809
 810 static dispex_static_data_t domcomment_dispex = {
 811     NULL,
 812     IXMLDOMComment_tid,
 813     NULL,
 814     domcomment_iface_tids
 815 };
 816
 817 IUnknown* create_comment( xmlNodePtr comment )
 818 {
 819     domcomment *This;
 820
 821     This = heap_alloc( sizeof *This );
 822     if ( !This )
 823         return NULL;
 824
 825     This->IXMLDOMComment_iface.lpVtbl = &domcomment_vtbl;
 826     This->ref = 1;
 827
 828     init_xmlnode(&This->node, comment, (IXMLDOMNode*)&This->IXMLDOMComment_iface, &domcomment_dispex);
 829
 830     return (IUnknown*)&This->IXMLDOMComment_iface;
 831 }
 832
 833 #endif