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 #define COBJMACROS
  22
  23 #include "config.h"
  24
  25 #include <stdarg.h>
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winuser.h"
  29 #include "ole2.h"
  30 #include "msxml2.h"
  31
  32 #include "msxml_private.h"
  33
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(msxml);
  37
  38 #ifdef HAVE_LIBXML2
  39
  40 typedef struct _domcomment
  41 {
  42     xmlnode node;
  43     const struct IXMLDOMCommentVtbl *lpVtbl;
  44     LONG ref;
  45 } domcomment;
  46
  47 static inline domcomment *impl_from_IXMLDOMComment( IXMLDOMComment *iface )
  48 {
  49     return (domcomment *)((char*)iface - FIELD_OFFSET(domcomment, lpVtbl));
  50 }
  51
  52 static HRESULT WINAPI domcomment_QueryInterface(
  53     IXMLDOMComment *iface,
  54     REFIID riid,
  55     void** ppvObject )
  56 {
  57     domcomment *This = impl_from_IXMLDOMComment( iface );
  58     TRACE("%p %s %p\n", This, debugstr_guid(riid), ppvObject);
  59
  60     if ( IsEqualGUID( riid, &IID_IXMLDOMComment ) ||
  61          IsEqualGUID( riid, &IID_IXMLDOMCharacterData) ||
  62          IsEqualGUID( riid, &IID_IDispatch ) ||
  63          IsEqualGUID( riid, &IID_IUnknown ) )
  64     {
  65         *ppvObject = iface;
  66     }
  67     else if ( IsEqualGUID( riid, &IID_IXMLDOMNode ) )
  68     {
  69         *ppvObject = IXMLDOMNode_from_impl(&This->node);
  70     }
  71     else
  72     {
  73         FIXME("Unsupported interface %s\n", debugstr_guid(riid));
  74         return E_NOINTERFACE;
  75     }
  76
  77     IXMLDOMText_AddRef((IUnknown*)*ppvObject);
  78     return S_OK;
  79 }
  80
  81 static ULONG WINAPI domcomment_AddRef(
  82     IXMLDOMComment *iface )
  83 {
  84     domcomment *This = impl_from_IXMLDOMComment( iface );
  85     return InterlockedIncrement( &This->ref );
  86 }
  87
  88 static ULONG WINAPI domcomment_Release(
  89     IXMLDOMComment *iface )
  90 {
  91     domcomment *This = impl_from_IXMLDOMComment( iface );
  92     ULONG ref;
  93
  94     ref = InterlockedDecrement( &This->ref );
  95     if ( ref == 0 )
  96     {
  97         destroy_xmlnode(&This->node);
  98         heap_free( This );
  99     }
 100
 101     return ref;
 102 }
 103
 104 static HRESULT WINAPI domcomment_GetTypeInfoCount(
 105     IXMLDOMComment *iface,
 106     UINT* pctinfo )
 107 {
 108     domcomment *This = impl_from_IXMLDOMComment( iface );
 109
 110     TRACE("(%p)->(%p)\n", This, pctinfo);
 111
 112     *pctinfo = 1;
 113
 114     return S_OK;
 115 }
 116
 117 static HRESULT WINAPI domcomment_GetTypeInfo(
 118     IXMLDOMComment *iface,
 119     UINT iTInfo, LCID lcid,
 120     ITypeInfo** ppTInfo )
 121 {
 122     domcomment *This = impl_from_IXMLDOMComment( iface );
 123     HRESULT hr;
 124
 125     TRACE("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 126
 127     hr = get_typeinfo(IXMLDOMComment_tid, ppTInfo);
 128
 129     return hr;
 130 }
 131
 132 static HRESULT WINAPI domcomment_GetIDsOfNames(
 133     IXMLDOMComment *iface,
 134     REFIID riid, LPOLESTR* rgszNames,
 135     UINT cNames, LCID lcid, DISPID* rgDispId )
 136 {
 137     domcomment *This = impl_from_IXMLDOMComment( iface );
 138     ITypeInfo *typeinfo;
 139     HRESULT hr;
 140
 141     TRACE("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 142           lcid, rgDispId);
 143
 144     if(!rgszNames || cNames == 0 || !rgDispId)
 145         return E_INVALIDARG;
 146
 147     hr = get_typeinfo(IXMLDOMComment_tid, &typeinfo);
 148     if(SUCCEEDED(hr))
 149     {
 150         hr = ITypeInfo_GetIDsOfNames(typeinfo, rgszNames, cNames, rgDispId);
 151         ITypeInfo_Release(typeinfo);
 152     }
 153
 154     return hr;
 155 }
 156
 157 static HRESULT WINAPI domcomment_Invoke(
 158     IXMLDOMComment *iface,
 159     DISPID dispIdMember, REFIID riid, LCID lcid,
 160     WORD wFlags, DISPPARAMS* pDispParams, VARIANT* pVarResult,
 161     EXCEPINFO* pExcepInfo, UINT* puArgErr )
 162 {
 163     domcomment *This = impl_from_IXMLDOMComment( iface );
 164     ITypeInfo *typeinfo;
 165     HRESULT hr;
 166
 167     TRACE("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 168           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 169
 170     hr = get_typeinfo(IXMLDOMComment_tid, &typeinfo);
 171     if(SUCCEEDED(hr))
 172     {
 173         hr = ITypeInfo_Invoke(typeinfo, &(This->lpVtbl), dispIdMember, wFlags, pDispParams,
 174                 pVarResult, pExcepInfo, puArgErr);
 175         ITypeInfo_Release(typeinfo);
 176     }
 177
 178     return hr;
 179 }
 180
 181 static HRESULT WINAPI domcomment_get_nodeName(
 182     IXMLDOMComment *iface,
 183     BSTR* p )
 184 {
 185     domcomment *This = impl_from_IXMLDOMComment( iface );
 186     return IXMLDOMNode_get_nodeName( IXMLDOMNode_from_impl(&This->node), p );
 187 }
 188
 189 static HRESULT WINAPI domcomment_get_nodeValue(
 190     IXMLDOMComment *iface,
 191     VARIANT* var1 )
 192 {
 193     domcomment *This = impl_from_IXMLDOMComment( iface );
 194     return IXMLDOMNode_get_nodeValue( IXMLDOMNode_from_impl(&This->node), var1 );
 195 }
 196
 197 static HRESULT WINAPI domcomment_put_nodeValue(
 198     IXMLDOMComment *iface,
 199     VARIANT var1 )
 200 {
 201     domcomment *This = impl_from_IXMLDOMComment( iface );
 202     return IXMLDOMNode_put_nodeValue( IXMLDOMNode_from_impl(&This->node), var1 );
 203 }
 204
 205 static HRESULT WINAPI domcomment_get_nodeType(
 206     IXMLDOMComment *iface,
 207     DOMNodeType* domNodeType )
 208 {
 209     domcomment *This = impl_from_IXMLDOMComment( iface );
 210     return IXMLDOMNode_get_nodeType( IXMLDOMNode_from_impl(&This->node), domNodeType );
 211 }
 212
 213 static HRESULT WINAPI domcomment_get_parentNode(
 214     IXMLDOMComment *iface,
 215     IXMLDOMNode** parent )
 216 {
 217     domcomment *This = impl_from_IXMLDOMComment( iface );
 218     return IXMLDOMNode_get_parentNode( IXMLDOMNode_from_impl(&This->node), parent );
 219 }
 220
 221 static HRESULT WINAPI domcomment_get_childNodes(
 222     IXMLDOMComment *iface,
 223     IXMLDOMNodeList** outList)
 224 {
 225     domcomment *This = impl_from_IXMLDOMComment( iface );
 226     return IXMLDOMNode_get_childNodes( IXMLDOMNode_from_impl(&This->node), outList );
 227 }
 228
 229 static HRESULT WINAPI domcomment_get_firstChild(
 230     IXMLDOMComment *iface,
 231     IXMLDOMNode** domNode)
 232 {
 233     domcomment *This = impl_from_IXMLDOMComment( iface );
 234     return IXMLDOMNode_get_firstChild( IXMLDOMNode_from_impl(&This->node), domNode );
 235 }
 236
 237 static HRESULT WINAPI domcomment_get_lastChild(
 238     IXMLDOMComment *iface,
 239     IXMLDOMNode** domNode)
 240 {
 241     domcomment *This = impl_from_IXMLDOMComment( iface );
 242     return IXMLDOMNode_get_lastChild( IXMLDOMNode_from_impl(&This->node), domNode );
 243 }
 244
 245 static HRESULT WINAPI domcomment_get_previousSibling(
 246     IXMLDOMComment *iface,
 247     IXMLDOMNode** domNode)
 248 {
 249     domcomment *This = impl_from_IXMLDOMComment( iface );
 250     return IXMLDOMNode_get_previousSibling( IXMLDOMNode_from_impl(&This->node), domNode );
 251 }
 252
 253 static HRESULT WINAPI domcomment_get_nextSibling(
 254     IXMLDOMComment *iface,
 255     IXMLDOMNode** domNode)
 256 {
 257     domcomment *This = impl_from_IXMLDOMComment( iface );
 258     return IXMLDOMNode_get_nextSibling( IXMLDOMNode_from_impl(&This->node), domNode );
 259 }
 260
 261 static HRESULT WINAPI domcomment_get_attributes(
 262     IXMLDOMComment *iface,
 263     IXMLDOMNamedNodeMap** attributeMap)
 264 {
 265     domcomment *This = impl_from_IXMLDOMComment( iface );
 266     return IXMLDOMNode_get_attributes( IXMLDOMNode_from_impl(&This->node), attributeMap );
 267 }
 268
 269 static HRESULT WINAPI domcomment_insertBefore(
 270     IXMLDOMComment *iface,
 271     IXMLDOMNode* newNode, VARIANT var1,
 272     IXMLDOMNode** outOldNode)
 273 {
 274     domcomment *This = impl_from_IXMLDOMComment( iface );
 275     return IXMLDOMNode_insertBefore( IXMLDOMNode_from_impl(&This->node), newNode, var1, 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     return IXMLDOMNode_replaceChild( IXMLDOMNode_from_impl(&This->node), newNode, oldNode, outOldNode );
 286 }
 287
 288 static HRESULT WINAPI domcomment_removeChild(
 289     IXMLDOMComment *iface,
 290     IXMLDOMNode* domNode, IXMLDOMNode** oldNode)
 291 {
 292     domcomment *This = impl_from_IXMLDOMComment( iface );
 293     return IXMLDOMNode_removeChild( IXMLDOMNode_from_impl(&This->node), domNode, oldNode );
 294 }
 295
 296 static HRESULT WINAPI domcomment_appendChild(
 297     IXMLDOMComment *iface,
 298     IXMLDOMNode* newNode, IXMLDOMNode** outNewNode)
 299 {
 300     domcomment *This = impl_from_IXMLDOMComment( iface );
 301     return IXMLDOMNode_appendChild( IXMLDOMNode_from_impl(&This->node), newNode, outNewNode );
 302 }
 303
 304 static HRESULT WINAPI domcomment_hasChildNodes(
 305     IXMLDOMComment *iface,
 306     VARIANT_BOOL* pbool)
 307 {
 308     domcomment *This = impl_from_IXMLDOMComment( iface );
 309     return IXMLDOMNode_hasChildNodes( IXMLDOMNode_from_impl(&This->node), pbool );
 310 }
 311
 312 static HRESULT WINAPI domcomment_get_ownerDocument(
 313     IXMLDOMComment *iface,
 314     IXMLDOMDocument** domDocument)
 315 {
 316     domcomment *This = impl_from_IXMLDOMComment( iface );
 317     return IXMLDOMNode_get_ownerDocument( IXMLDOMNode_from_impl(&This->node), domDocument );
 318 }
 319
 320 static HRESULT WINAPI domcomment_cloneNode(
 321     IXMLDOMComment *iface,
 322     VARIANT_BOOL pbool, IXMLDOMNode** outNode)
 323 {
 324     domcomment *This = impl_from_IXMLDOMComment( iface );
 325     return IXMLDOMNode_cloneNode( IXMLDOMNode_from_impl(&This->node), pbool, outNode );
 326 }
 327
 328 static HRESULT WINAPI domcomment_get_nodeTypeString(
 329     IXMLDOMComment *iface,
 330     BSTR* p)
 331 {
 332     domcomment *This = impl_from_IXMLDOMComment( iface );
 333     return IXMLDOMNode_get_nodeTypeString( IXMLDOMNode_from_impl(&This->node), p );
 334 }
 335
 336 static HRESULT WINAPI domcomment_get_text(
 337     IXMLDOMComment *iface,
 338     BSTR* p)
 339 {
 340     domcomment *This = impl_from_IXMLDOMComment( iface );
 341     return IXMLDOMNode_get_text( IXMLDOMNode_from_impl(&This->node), p );
 342 }
 343
 344 static HRESULT WINAPI domcomment_put_text(
 345     IXMLDOMComment *iface,
 346     BSTR p)
 347 {
 348     domcomment *This = impl_from_IXMLDOMComment( iface );
 349     return IXMLDOMNode_put_text( IXMLDOMNode_from_impl(&This->node), p );
 350 }
 351
 352 static HRESULT WINAPI domcomment_get_specified(
 353     IXMLDOMComment *iface,
 354     VARIANT_BOOL* pbool)
 355 {
 356     domcomment *This = impl_from_IXMLDOMComment( iface );
 357     return IXMLDOMNode_get_specified( IXMLDOMNode_from_impl(&This->node), pbool );
 358 }
 359
 360 static HRESULT WINAPI domcomment_get_definition(
 361     IXMLDOMComment *iface,
 362     IXMLDOMNode** domNode)
 363 {
 364     domcomment *This = impl_from_IXMLDOMComment( iface );
 365     return IXMLDOMNode_get_definition( IXMLDOMNode_from_impl(&This->node), domNode );
 366 }
 367
 368 static HRESULT WINAPI domcomment_get_nodeTypedValue(
 369     IXMLDOMComment *iface,
 370     VARIANT* var1)
 371 {
 372     domcomment *This = impl_from_IXMLDOMComment( iface );
 373     return IXMLDOMNode_get_nodeTypedValue( IXMLDOMNode_from_impl(&This->node), var1 );
 374 }
 375
 376 static HRESULT WINAPI domcomment_put_nodeTypedValue(
 377     IXMLDOMComment *iface,
 378     VARIANT var1)
 379 {
 380     domcomment *This = impl_from_IXMLDOMComment( iface );
 381     return IXMLDOMNode_put_nodeTypedValue( IXMLDOMNode_from_impl(&This->node), var1 );
 382 }
 383
 384 static HRESULT WINAPI domcomment_get_dataType(
 385     IXMLDOMComment *iface,
 386     VARIANT* var1)
 387 {
 388     domcomment *This = impl_from_IXMLDOMComment( iface );
 389     return IXMLDOMNode_get_dataType( IXMLDOMNode_from_impl(&This->node), var1 );
 390 }
 391
 392 static HRESULT WINAPI domcomment_put_dataType(
 393     IXMLDOMComment *iface,
 394     BSTR p)
 395 {
 396     domcomment *This = impl_from_IXMLDOMComment( iface );
 397     return IXMLDOMNode_put_dataType( IXMLDOMNode_from_impl(&This->node), p );
 398 }
 399
 400 static HRESULT WINAPI domcomment_get_xml(
 401     IXMLDOMComment *iface,
 402     BSTR* p)
 403 {
 404     domcomment *This = impl_from_IXMLDOMComment( iface );
 405     return IXMLDOMNode_get_xml( IXMLDOMNode_from_impl(&This->node), p );
 406 }
 407
 408 static HRESULT WINAPI domcomment_transformNode(
 409     IXMLDOMComment *iface,
 410     IXMLDOMNode* domNode, BSTR* p)
 411 {
 412     domcomment *This = impl_from_IXMLDOMComment( iface );
 413     return IXMLDOMNode_transformNode( IXMLDOMNode_from_impl(&This->node), domNode, p );
 414 }
 415
 416 static HRESULT WINAPI domcomment_selectNodes(
 417     IXMLDOMComment *iface,
 418     BSTR p, IXMLDOMNodeList** outList)
 419 {
 420     domcomment *This = impl_from_IXMLDOMComment( iface );
 421     return IXMLDOMNode_selectNodes( IXMLDOMNode_from_impl(&This->node), p, outList );
 422 }
 423
 424 static HRESULT WINAPI domcomment_selectSingleNode(
 425     IXMLDOMComment *iface,
 426     BSTR p, IXMLDOMNode** outNode)
 427 {
 428     domcomment *This = impl_from_IXMLDOMComment( iface );
 429     return IXMLDOMNode_selectSingleNode( IXMLDOMNode_from_impl(&This->node), p, outNode );
 430 }
 431
 432 static HRESULT WINAPI domcomment_get_parsed(
 433     IXMLDOMComment *iface,
 434     VARIANT_BOOL* pbool)
 435 {
 436     domcomment *This = impl_from_IXMLDOMComment( iface );
 437     return IXMLDOMNode_get_parsed( IXMLDOMNode_from_impl(&This->node), pbool );
 438 }
 439
 440 static HRESULT WINAPI domcomment_get_namespaceURI(
 441     IXMLDOMComment *iface,
 442     BSTR* p)
 443 {
 444     domcomment *This = impl_from_IXMLDOMComment( iface );
 445     return IXMLDOMNode_get_namespaceURI( IXMLDOMNode_from_impl(&This->node), p );
 446 }
 447
 448 static HRESULT WINAPI domcomment_get_prefix(
 449     IXMLDOMComment *iface,
 450     BSTR* p)
 451 {
 452     domcomment *This = impl_from_IXMLDOMComment( iface );
 453     return IXMLDOMNode_get_prefix( IXMLDOMNode_from_impl(&This->node), p );
 454 }
 455
 456 static HRESULT WINAPI domcomment_get_baseName(
 457     IXMLDOMComment *iface,
 458     BSTR* p)
 459 {
 460     domcomment *This = impl_from_IXMLDOMComment( iface );
 461     return IXMLDOMNode_get_baseName( IXMLDOMNode_from_impl(&This->node), p );
 462 }
 463
 464 static HRESULT WINAPI domcomment_transformNodeToObject(
 465     IXMLDOMComment *iface,
 466     IXMLDOMNode* domNode, VARIANT var1)
 467 {
 468     domcomment *This = impl_from_IXMLDOMComment( iface );
 469     return IXMLDOMNode_transformNodeToObject( IXMLDOMNode_from_impl(&This->node), domNode, var1 );
 470 }
 471
 472 static HRESULT WINAPI domcomment_get_data(
 473     IXMLDOMComment *iface,
 474     BSTR *p)
 475 {
 476     domcomment *This = impl_from_IXMLDOMComment( iface );
 477     HRESULT hr = E_FAIL;
 478     VARIANT vRet;
 479
 480     if(!p)
 481         return E_INVALIDARG;
 482
 483     hr = IXMLDOMNode_get_nodeValue( IXMLDOMNode_from_impl(&This->node), &vRet );
 484     if(hr == S_OK)
 485     {
 486         *p = V_BSTR(&vRet);
 487     }
 488
 489     return hr;
 490 }
 491
 492 static HRESULT WINAPI domcomment_put_data(
 493     IXMLDOMComment *iface,
 494     BSTR data)
 495 {
 496     domcomment *This = impl_from_IXMLDOMComment( iface );
 497     HRESULT hr = E_FAIL;
 498     VARIANT val;
 499
 500     TRACE("%p %s\n", This, debugstr_w(data) );
 501
 502     V_VT(&val) = VT_BSTR;
 503     V_BSTR(&val) = data;
 504
 505     hr = IXMLDOMNode_put_nodeValue( IXMLDOMNode_from_impl(&This->node), val );
 506
 507     return hr;
 508 }
 509
 510 static HRESULT WINAPI domcomment_get_length(
 511     IXMLDOMComment *iface,
 512     LONG *len)
 513 {
 514     domcomment *This = impl_from_IXMLDOMComment( iface );
 515     xmlChar *pContent;
 516     LONG nLength = 0;
 517
 518     TRACE("%p\n", iface);
 519
 520     if(!len)
 521         return E_INVALIDARG;
 522
 523     pContent = xmlNodeGetContent(This->node.node);
 524     if(pContent)
 525     {
 526         nLength = xmlStrlen(pContent);
 527         xmlFree(pContent);
 528     }
 529
 530     *len = nLength;
 531
 532     return S_OK;
 533 }
 534
 535 static HRESULT WINAPI domcomment_substringData(
 536     IXMLDOMComment *iface,
 537     LONG offset, LONG count, BSTR *p)
 538 {
 539     domcomment *This = impl_from_IXMLDOMComment( iface );
 540     xmlChar *pContent;
 541     LONG nLength = 0;
 542     HRESULT hr = S_FALSE;
 543
 544     TRACE("%p %d %d %p\n", iface, offset, count, p);
 545
 546     if(!p)
 547         return E_INVALIDARG;
 548
 549     *p = NULL;
 550     if(offset < 0 || count < 0)
 551         return E_INVALIDARG;
 552
 553     if(count == 0)
 554         return S_FALSE;
 555
 556     pContent = xmlNodeGetContent(This->node.node);
 557     if(pContent)
 558     {
 559         nLength = xmlStrlen(pContent);
 560
 561         if( offset < nLength)
 562         {
 563             BSTR sContent = bstr_from_xmlChar(pContent);
 564             if(offset + count > nLength)
 565                 *p = SysAllocString(&sContent[offset]);
 566             else
 567                 *p = SysAllocStringLen(&sContent[offset], count);
 568
 569             SysFreeString(sContent);
 570             hr = S_OK;
 571         }
 572
 573         xmlFree(pContent);
 574     }
 575
 576     return hr;
 577 }
 578
 579 static HRESULT WINAPI domcomment_appendData(
 580     IXMLDOMComment *iface,
 581     BSTR p)
 582 {
 583     domcomment *This = impl_from_IXMLDOMComment( iface );
 584     xmlChar *pContent;
 585     HRESULT hr = S_FALSE;
 586
 587     TRACE("%p\n", iface);
 588
 589     /* Nothing to do if NULL or an Empty string passed in. */
 590     if(p == NULL || SysStringLen(p) == 0)
 591         return S_OK;
 592
 593     pContent = xmlChar_from_wchar( p );
 594     if(pContent)
 595     {
 596         /* Older versions of libxml < 2.6.27 didn't correctly support
 597            xmlTextConcat on Comment nodes. Fallback to setting the
 598            contents directly if xmlTextConcat fails.
 599          */
 600         if(xmlTextConcat(This->node.node, pContent, SysStringLen(p) ) == 0)
 601             hr = S_OK;
 602         else
 603         {
 604             xmlChar *pNew;
 605             pNew = xmlStrcat(xmlNodeGetContent(This->node.node), pContent);
 606             if(pNew)
 607             {
 608                 xmlNodeSetContent(This->node.node, pNew);
 609                 hr = S_OK;
 610             }
 611             else
 612                 hr = E_FAIL;
 613         }
 614         HeapFree( GetProcessHeap(), 0, pContent );
 615     }
 616     else
 617         hr = E_FAIL;
 618
 619     return hr;
 620 }
 621
 622 static HRESULT WINAPI domcomment_insertData(
 623     IXMLDOMComment *iface,
 624     LONG offset, BSTR p)
 625 {
 626     domcomment *This = impl_from_IXMLDOMComment( iface );
 627     xmlChar *pXmlContent;
 628     BSTR sNewString;
 629     HRESULT hr = S_FALSE;
 630     LONG nLength = 0, nLengthP = 0;
 631     xmlChar *str = NULL;
 632
 633     TRACE("%p %d %p\n", iface, offset, p);
 634
 635     /* If have a NULL or empty string, don't do anything. */
 636     if(SysStringLen(p) == 0)
 637         return S_OK;
 638
 639     if(offset < 0)
 640     {
 641         return E_INVALIDARG;
 642     }
 643
 644     pXmlContent = xmlNodeGetContent(This->node.node);
 645     if(pXmlContent)
 646     {
 647         BSTR sContent = bstr_from_xmlChar( pXmlContent );
 648         nLength = SysStringLen(sContent);
 649         nLengthP = SysStringLen(p);
 650
 651         if(nLength < offset)
 652         {
 653             SysFreeString(sContent);
 654             xmlFree(pXmlContent);
 655
 656             return E_INVALIDARG;
 657         }
 658
 659         sNewString = SysAllocStringLen(NULL, nLength + nLengthP + 1);
 660         if(sNewString)
 661         {
 662             if(offset > 0)
 663                 memcpy(sNewString, sContent, offset * sizeof(WCHAR));
 664
 665             memcpy(&sNewString[offset], p, nLengthP * sizeof(WCHAR));
 666
 667             if(offset+nLengthP < nLength)
 668                 memcpy(&sNewString[offset+nLengthP], &sContent[offset], (nLength-offset) * sizeof(WCHAR));
 669
 670             sNewString[nLengthP + nLength] = 0;
 671
 672             str = xmlChar_from_wchar(sNewString);
 673             if(str)
 674             {
 675                 xmlNodeSetContent(This->node.node, str);
 676                 hr = S_OK;
 677             }
 678             HeapFree( GetProcessHeap(), 0, str );
 679
 680             SysFreeString(sNewString);
 681         }
 682
 683         SysFreeString(sContent);
 684
 685         xmlFree(pXmlContent);
 686     }
 687
 688     return hr;
 689 }
 690
 691 static HRESULT WINAPI domcomment_deleteData(
 692     IXMLDOMComment *iface,
 693     LONG offset, LONG count)
 694 {
 695     HRESULT hr;
 696     LONG len = -1;
 697     BSTR str;
 698
 699     TRACE("%p %d %d\n", iface, offset, count);
 700
 701     hr = IXMLDOMComment_get_length(iface, &len);
 702     if(hr != S_OK) return hr;
 703
 704     if((offset < 0) || (offset > len) || (count < 0))
 705         return E_INVALIDARG;
 706
 707     if(len == 0) return S_OK;
 708
 709     /* cutting start or end */
 710     if((offset == 0) || ((count + offset) >= len))
 711     {
 712         if(offset == 0)
 713             IXMLDOMComment_substringData(iface, count, len - count, &str);
 714         else
 715             IXMLDOMComment_substringData(iface, 0, offset, &str);
 716         hr = IXMLDOMComment_put_data(iface, str);
 717     }
 718     else
 719     /* cutting from the inside */
 720     {
 721         BSTR str_end;
 722
 723         IXMLDOMComment_substringData(iface, 0, offset, &str);
 724         IXMLDOMComment_substringData(iface, offset + count, len - count, &str_end);
 725
 726         hr = IXMLDOMComment_put_data(iface, str);
 727         if(hr == S_OK)
 728             hr = IXMLDOMComment_appendData(iface, str_end);
 729
 730         SysFreeString(str_end);
 731     }
 732
 733     SysFreeString(str);
 734
 735     return hr;
 736 }
 737
 738 static HRESULT WINAPI domcomment_replaceData(
 739     IXMLDOMComment *iface,
 740     LONG offset, LONG count, BSTR p)
 741 {
 742     FIXME("\n");
 743     return E_NOTIMPL;
 744 }
 745
 746 static const struct IXMLDOMCommentVtbl domcomment_vtbl =
 747 {
 748     domcomment_QueryInterface,
 749     domcomment_AddRef,
 750     domcomment_Release,
 751     domcomment_GetTypeInfoCount,
 752     domcomment_GetTypeInfo,
 753     domcomment_GetIDsOfNames,
 754     domcomment_Invoke,
 755     domcomment_get_nodeName,
 756     domcomment_get_nodeValue,
 757     domcomment_put_nodeValue,
 758     domcomment_get_nodeType,
 759     domcomment_get_parentNode,
 760     domcomment_get_childNodes,
 761     domcomment_get_firstChild,
 762     domcomment_get_lastChild,
 763     domcomment_get_previousSibling,
 764     domcomment_get_nextSibling,
 765     domcomment_get_attributes,
 766     domcomment_insertBefore,
 767     domcomment_replaceChild,
 768     domcomment_removeChild,
 769     domcomment_appendChild,
 770     domcomment_hasChildNodes,
 771     domcomment_get_ownerDocument,
 772     domcomment_cloneNode,
 773     domcomment_get_nodeTypeString,
 774     domcomment_get_text,
 775     domcomment_put_text,
 776     domcomment_get_specified,
 777     domcomment_get_definition,
 778     domcomment_get_nodeTypedValue,
 779     domcomment_put_nodeTypedValue,
 780     domcomment_get_dataType,
 781     domcomment_put_dataType,
 782     domcomment_get_xml,
 783     domcomment_transformNode,
 784     domcomment_selectNodes,
 785     domcomment_selectSingleNode,
 786     domcomment_get_parsed,
 787     domcomment_get_namespaceURI,
 788     domcomment_get_prefix,
 789     domcomment_get_baseName,
 790     domcomment_transformNodeToObject,
 791     domcomment_get_data,
 792     domcomment_put_data,
 793     domcomment_get_length,
 794     domcomment_substringData,
 795     domcomment_appendData,
 796     domcomment_insertData,
 797     domcomment_deleteData,
 798     domcomment_replaceData
 799 };
 800
 801 IUnknown* create_comment( xmlNodePtr comment )
 802 {
 803     domcomment *This;
 804
 805     This = heap_alloc( sizeof *This );
 806     if ( !This )
 807         return NULL;
 808
 809     This->lpVtbl = &domcomment_vtbl;
 810     This->ref = 1;
 811
 812     init_xmlnode(&This->node, comment, (IUnknown*)&This->lpVtbl, NULL);
 813
 814     return (IUnknown*) &This->lpVtbl;
 815 }
 816
 817 #endif