dlls/msxml3/text.c

   1 /*
   2  *    DOM text node implementation
   3  *
   4  * Copyright 2006 Huw Davies
   5  * Copyright 2007-2008 Alistair Leslie-Hughes
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #define COBJMACROS
  23
  24 #include "config.h"
  25
  26 #include <stdarg.h>
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winuser.h"
  30 #include "ole2.h"
  31 #include "msxml6.h"
  32
  33 #include "msxml_private.h"
  34
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(msxml);
  38
  39 #ifdef HAVE_LIBXML2
  40
  41 typedef struct _domtext
  42 {
  43     xmlnode node;
  44     const struct IXMLDOMTextVtbl *lpVtbl;
  45     LONG ref;
  46 } domtext;
  47
  48 static inline domtext *impl_from_IXMLDOMText( IXMLDOMText *iface )
  49 {
  50     return (domtext *)((char*)iface - FIELD_OFFSET(domtext, lpVtbl));
  51 }
  52
  53 static HRESULT WINAPI domtext_QueryInterface(
  54     IXMLDOMText *iface,
  55     REFIID riid,
  56     void** ppvObject )
  57 {
  58     domtext *This = impl_from_IXMLDOMText( iface );
  59     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppvObject);
  60
  61     if ( IsEqualGUID( riid, &IID_IXMLDOMText ) ||
  62          IsEqualGUID( riid, &IID_IXMLDOMCharacterData) ||
  63          IsEqualGUID( riid, &IID_IXMLDOMNode ) ||
  64          IsEqualGUID( riid, &IID_IDispatch ) ||
  65          IsEqualGUID( riid, &IID_IUnknown ) )
  66     {
  67         *ppvObject = iface;
  68     }
  69     else if(node_query_interface(&This->node, riid, ppvObject))
  70     {
  71         return *ppvObject ? S_OK : E_NOINTERFACE;
  72     }
  73     else if ( IsEqualGUID( riid, &IID_IXMLDOMElement ) ||
  74               IsEqualGUID( riid, &IID_IXMLDOMCDATASection ) )
  75     {
  76         /* IXMLDOMText is known to be correct in not implementing these */
  77         TRACE("Unsupported interface\n");
  78         return E_NOINTERFACE;
  79     }
  80     else
  81     {
  82         FIXME("Unsupported interface %s\n", debugstr_guid(riid));
  83         return E_NOINTERFACE;
  84     }
  85
  86     IXMLDOMText_AddRef((IUnknown*)*ppvObject);
  87     return S_OK;
  88 }
  89
  90 static ULONG WINAPI domtext_AddRef(
  91     IXMLDOMText *iface )
  92 {
  93     domtext *This = impl_from_IXMLDOMText( iface );
  94     return InterlockedIncrement( &This->ref );
  95 }
  96
  97 static ULONG WINAPI domtext_Release(
  98     IXMLDOMText *iface )
  99 {
 100     domtext *This = impl_from_IXMLDOMText( iface );
 101     ULONG ref;
 102
 103     ref = InterlockedDecrement( &This->ref );
 104     if ( ref == 0 )
 105     {
 106         destroy_xmlnode(&This->node);
 107         heap_free( This );
 108     }
 109
 110     return ref;
 111 }
 112
 113 static HRESULT WINAPI domtext_GetTypeInfoCount(
 114     IXMLDOMText *iface,
 115     UINT* pctinfo )
 116 {
 117     domtext *This = impl_from_IXMLDOMText( iface );
 118
 119     TRACE("(%p)->(%p)\n", This, pctinfo);
 120
 121     *pctinfo = 1;
 122
 123     return S_OK;
 124 }
 125
 126 static HRESULT WINAPI domtext_GetTypeInfo(
 127     IXMLDOMText *iface,
 128     UINT iTInfo, LCID lcid,
 129     ITypeInfo** ppTInfo )
 130 {
 131     domtext *This = impl_from_IXMLDOMText( iface );
 132     HRESULT hr;
 133
 134     TRACE("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 135
 136     hr = get_typeinfo(IXMLDOMText_tid, ppTInfo);
 137
 138     return hr;
 139 }
 140
 141 static HRESULT WINAPI domtext_GetIDsOfNames(
 142     IXMLDOMText *iface,
 143     REFIID riid, LPOLESTR* rgszNames,
 144     UINT cNames, LCID lcid, DISPID* rgDispId )
 145 {
 146     domtext *This = impl_from_IXMLDOMText( iface );
 147     ITypeInfo *typeinfo;
 148     HRESULT hr;
 149
 150     TRACE("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 151           lcid, rgDispId);
 152
 153     if(!rgszNames || cNames == 0 || !rgDispId)
 154         return E_INVALIDARG;
 155
 156     hr = get_typeinfo(IXMLDOMText_tid, &typeinfo);
 157     if(SUCCEEDED(hr))
 158     {
 159         hr = ITypeInfo_GetIDsOfNames(typeinfo, rgszNames, cNames, rgDispId);
 160         ITypeInfo_Release(typeinfo);
 161     }
 162
 163     return hr;
 164 }
 165
 166 static HRESULT WINAPI domtext_Invoke(
 167     IXMLDOMText *iface,
 168     DISPID dispIdMember, REFIID riid, LCID lcid,
 169     WORD wFlags, DISPPARAMS* pDispParams, VARIANT* pVarResult,
 170     EXCEPINFO* pExcepInfo, UINT* puArgErr )
 171 {
 172     domtext *This = impl_from_IXMLDOMText( iface );
 173     ITypeInfo *typeinfo;
 174     HRESULT hr;
 175
 176     TRACE("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 177           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 178
 179     hr = get_typeinfo(IXMLDOMText_tid, &typeinfo);
 180     if(SUCCEEDED(hr))
 181     {
 182         hr = ITypeInfo_Invoke(typeinfo, &(This->lpVtbl), dispIdMember, wFlags, pDispParams,
 183                 pVarResult, pExcepInfo, puArgErr);
 184         ITypeInfo_Release(typeinfo);
 185     }
 186
 187     return hr;
 188 }
 189
 190 static HRESULT WINAPI domtext_get_nodeName(
 191     IXMLDOMText *iface,
 192     BSTR* p )
 193 {
 194     domtext *This = impl_from_IXMLDOMText( iface );
 195
 196     static const WCHAR textW[] = {'#','t','e','x','t',0};
 197
 198     TRACE("(%p)->(%p)\n", This, p);
 199
 200     return return_bstr(textW, p);
 201 }
 202
 203 static HRESULT WINAPI domtext_get_nodeValue(
 204     IXMLDOMText *iface,
 205     VARIANT* value )
 206 {
 207     domtext *This = impl_from_IXMLDOMText( iface );
 208
 209     TRACE("(%p)->(%p)\n", This, value);
 210
 211     if(!value)
 212         return E_INVALIDARG;
 213
 214     V_VT(value) = VT_BSTR;
 215     V_BSTR(value) = bstr_from_xmlChar(This->node.node->content);
 216     return S_OK;
 217 }
 218
 219 static HRESULT WINAPI domtext_put_nodeValue(
 220     IXMLDOMText *iface,
 221     VARIANT value)
 222 {
 223     domtext *This = impl_from_IXMLDOMText( iface );
 224
 225     TRACE("(%p)->(v%d)\n", This, V_VT(&value));
 226
 227     return node_put_value(&This->node, &value);
 228 }
 229
 230 static HRESULT WINAPI domtext_get_nodeType(
 231     IXMLDOMText *iface,
 232     DOMNodeType* domNodeType )
 233 {
 234     domtext *This = impl_from_IXMLDOMText( iface );
 235
 236     TRACE("(%p)->(%p)\n", This, domNodeType);
 237
 238     *domNodeType = NODE_TEXT;
 239     return S_OK;
 240 }
 241
 242 static HRESULT WINAPI domtext_get_parentNode(
 243     IXMLDOMText *iface,
 244     IXMLDOMNode** parent )
 245 {
 246     domtext *This = impl_from_IXMLDOMText( iface );
 247
 248     TRACE("(%p)->(%p)\n", This, parent);
 249
 250     return node_get_parent(&This->node, parent);
 251 }
 252
 253 static HRESULT WINAPI domtext_get_childNodes(
 254     IXMLDOMText *iface,
 255     IXMLDOMNodeList** outList)
 256 {
 257     domtext *This = impl_from_IXMLDOMText( iface );
 258
 259     TRACE("(%p)->(%p)\n", This, outList);
 260
 261     return node_get_child_nodes(&This->node, outList);
 262 }
 263
 264 static HRESULT WINAPI domtext_get_firstChild(
 265     IXMLDOMText *iface,
 266     IXMLDOMNode** domNode)
 267 {
 268     domtext *This = impl_from_IXMLDOMText( iface );
 269
 270     TRACE("(%p)->(%p)\n", This, domNode);
 271
 272     return return_null_node(domNode);
 273 }
 274
 275 static HRESULT WINAPI domtext_get_lastChild(
 276     IXMLDOMText *iface,
 277     IXMLDOMNode** domNode)
 278 {
 279     domtext *This = impl_from_IXMLDOMText( iface );
 280
 281     TRACE("(%p)->(%p)\n", This, domNode);
 282
 283     return return_null_node(domNode);
 284 }
 285
 286 static HRESULT WINAPI domtext_get_previousSibling(
 287     IXMLDOMText *iface,
 288     IXMLDOMNode** domNode)
 289 {
 290     domtext *This = impl_from_IXMLDOMText( iface );
 291
 292     TRACE("(%p)->(%p)\n", This, domNode);
 293
 294     return node_get_previous_sibling(&This->node, domNode);
 295 }
 296
 297 static HRESULT WINAPI domtext_get_nextSibling(
 298     IXMLDOMText *iface,
 299     IXMLDOMNode** domNode)
 300 {
 301     domtext *This = impl_from_IXMLDOMText( iface );
 302
 303     TRACE("(%p)->(%p)\n", This, domNode);
 304
 305     return node_get_next_sibling(&This->node, domNode);
 306 }
 307
 308 static HRESULT WINAPI domtext_get_attributes(
 309     IXMLDOMText *iface,
 310     IXMLDOMNamedNodeMap** attributeMap)
 311 {
 312     domtext *This = impl_from_IXMLDOMText( iface );
 313
 314     TRACE("(%p)->(%p)\n", This, attributeMap);
 315
 316     return return_null_ptr((void**)attributeMap);
 317 }
 318
 319 static HRESULT WINAPI domtext_insertBefore(
 320     IXMLDOMText *iface,
 321     IXMLDOMNode* newNode, VARIANT refChild,
 322     IXMLDOMNode** outOldNode)
 323 {
 324     domtext *This = impl_from_IXMLDOMText( iface );
 325
 326     FIXME("(%p)->(%p x%d %p) needs test\n", This, newNode, V_VT(&refChild), outOldNode);
 327
 328     return node_insert_before(&This->node, newNode, &refChild, outOldNode);
 329 }
 330
 331 static HRESULT WINAPI domtext_replaceChild(
 332     IXMLDOMText *iface,
 333     IXMLDOMNode* newNode,
 334     IXMLDOMNode* oldNode,
 335     IXMLDOMNode** outOldNode)
 336 {
 337     domtext *This = impl_from_IXMLDOMText( iface );
 338     return IXMLDOMNode_replaceChild( IXMLDOMNode_from_impl(&This->node), newNode, oldNode, outOldNode );
 339 }
 340
 341 static HRESULT WINAPI domtext_removeChild(
 342     IXMLDOMText *iface,
 343     IXMLDOMNode* domNode, IXMLDOMNode** oldNode)
 344 {
 345     domtext *This = impl_from_IXMLDOMText( iface );
 346     return IXMLDOMNode_removeChild( IXMLDOMNode_from_impl(&This->node), domNode, oldNode );
 347 }
 348
 349 static HRESULT WINAPI domtext_appendChild(
 350     IXMLDOMText *iface,
 351     IXMLDOMNode* newNode, IXMLDOMNode** outNewNode)
 352 {
 353     domtext *This = impl_from_IXMLDOMText( iface );
 354     return IXMLDOMNode_appendChild( IXMLDOMNode_from_impl(&This->node), newNode, outNewNode );
 355 }
 356
 357 static HRESULT WINAPI domtext_hasChildNodes(
 358     IXMLDOMText *iface,
 359     VARIANT_BOOL* pbool)
 360 {
 361     domtext *This = impl_from_IXMLDOMText( iface );
 362     return IXMLDOMNode_hasChildNodes( IXMLDOMNode_from_impl(&This->node), pbool );
 363 }
 364
 365 static HRESULT WINAPI domtext_get_ownerDocument(
 366     IXMLDOMText *iface,
 367     IXMLDOMDocument** domDocument)
 368 {
 369     domtext *This = impl_from_IXMLDOMText( iface );
 370     return IXMLDOMNode_get_ownerDocument( IXMLDOMNode_from_impl(&This->node), domDocument );
 371 }
 372
 373 static HRESULT WINAPI domtext_cloneNode(
 374     IXMLDOMText *iface,
 375     VARIANT_BOOL pbool, IXMLDOMNode** outNode)
 376 {
 377     domtext *This = impl_from_IXMLDOMText( iface );
 378     return IXMLDOMNode_cloneNode( IXMLDOMNode_from_impl(&This->node), pbool, outNode );
 379 }
 380
 381 static HRESULT WINAPI domtext_get_nodeTypeString(
 382     IXMLDOMText *iface,
 383     BSTR* p)
 384 {
 385     domtext *This = impl_from_IXMLDOMText( iface );
 386     return IXMLDOMNode_get_nodeTypeString( IXMLDOMNode_from_impl(&This->node), p );
 387 }
 388
 389 static HRESULT WINAPI domtext_get_text(
 390     IXMLDOMText *iface,
 391     BSTR* p)
 392 {
 393     domtext *This = impl_from_IXMLDOMText( iface );
 394     return IXMLDOMNode_get_text( IXMLDOMNode_from_impl(&This->node), p );
 395 }
 396
 397 static HRESULT WINAPI domtext_put_text(
 398     IXMLDOMText *iface,
 399     BSTR p)
 400 {
 401     domtext *This = impl_from_IXMLDOMText( iface );
 402     return IXMLDOMNode_put_text( IXMLDOMNode_from_impl(&This->node), p );
 403 }
 404
 405 static HRESULT WINAPI domtext_get_specified(
 406     IXMLDOMText *iface,
 407     VARIANT_BOOL* pbool)
 408 {
 409     domtext *This = impl_from_IXMLDOMText( iface );
 410     return IXMLDOMNode_get_specified( IXMLDOMNode_from_impl(&This->node), pbool );
 411 }
 412
 413 static HRESULT WINAPI domtext_get_definition(
 414     IXMLDOMText *iface,
 415     IXMLDOMNode** domNode)
 416 {
 417     domtext *This = impl_from_IXMLDOMText( iface );
 418     return IXMLDOMNode_get_definition( IXMLDOMNode_from_impl(&This->node), domNode );
 419 }
 420
 421 static HRESULT WINAPI domtext_get_nodeTypedValue(
 422     IXMLDOMText *iface,
 423     VARIANT* var1)
 424 {
 425     domtext *This = impl_from_IXMLDOMText( iface );
 426     return IXMLDOMNode_get_nodeTypedValue( IXMLDOMNode_from_impl(&This->node), var1 );
 427 }
 428
 429 static HRESULT WINAPI domtext_put_nodeTypedValue(
 430     IXMLDOMText *iface,
 431     VARIANT var1)
 432 {
 433     domtext *This = impl_from_IXMLDOMText( iface );
 434     return IXMLDOMNode_put_nodeTypedValue( IXMLDOMNode_from_impl(&This->node), var1 );
 435 }
 436
 437 static HRESULT WINAPI domtext_get_dataType(
 438     IXMLDOMText *iface,
 439     VARIANT* var1)
 440 {
 441     domtext *This = impl_from_IXMLDOMText( iface );
 442     return IXMLDOMNode_get_dataType( IXMLDOMNode_from_impl(&This->node), var1 );
 443 }
 444
 445 static HRESULT WINAPI domtext_put_dataType(
 446     IXMLDOMText *iface,
 447     BSTR p)
 448 {
 449     domtext *This = impl_from_IXMLDOMText( iface );
 450     return IXMLDOMNode_put_dataType( IXMLDOMNode_from_impl(&This->node), p );
 451 }
 452
 453 static HRESULT WINAPI domtext_get_xml(
 454     IXMLDOMText *iface,
 455     BSTR* p)
 456 {
 457     domtext *This = impl_from_IXMLDOMText( iface );
 458     return IXMLDOMNode_get_xml( IXMLDOMNode_from_impl(&This->node), p );
 459 }
 460
 461 static HRESULT WINAPI domtext_transformNode(
 462     IXMLDOMText *iface,
 463     IXMLDOMNode* domNode, BSTR* p)
 464 {
 465     domtext *This = impl_from_IXMLDOMText( iface );
 466     return IXMLDOMNode_transformNode( IXMLDOMNode_from_impl(&This->node), domNode, p );
 467 }
 468
 469 static HRESULT WINAPI domtext_selectNodes(
 470     IXMLDOMText *iface,
 471     BSTR p, IXMLDOMNodeList** outList)
 472 {
 473     domtext *This = impl_from_IXMLDOMText( iface );
 474     return IXMLDOMNode_selectNodes( IXMLDOMNode_from_impl(&This->node), p, outList );
 475 }
 476
 477 static HRESULT WINAPI domtext_selectSingleNode(
 478     IXMLDOMText *iface,
 479     BSTR p, IXMLDOMNode** outNode)
 480 {
 481     domtext *This = impl_from_IXMLDOMText( iface );
 482     return IXMLDOMNode_selectSingleNode( IXMLDOMNode_from_impl(&This->node), p, outNode );
 483 }
 484
 485 static HRESULT WINAPI domtext_get_parsed(
 486     IXMLDOMText *iface,
 487     VARIANT_BOOL* pbool)
 488 {
 489     domtext *This = impl_from_IXMLDOMText( iface );
 490     return IXMLDOMNode_get_parsed( IXMLDOMNode_from_impl(&This->node), pbool );
 491 }
 492
 493 static HRESULT WINAPI domtext_get_namespaceURI(
 494     IXMLDOMText *iface,
 495     BSTR* p)
 496 {
 497     domtext *This = impl_from_IXMLDOMText( iface );
 498     return IXMLDOMNode_get_namespaceURI( IXMLDOMNode_from_impl(&This->node), p );
 499 }
 500
 501 static HRESULT WINAPI domtext_get_prefix(
 502     IXMLDOMText *iface,
 503     BSTR* p)
 504 {
 505     domtext *This = impl_from_IXMLDOMText( iface );
 506     return IXMLDOMNode_get_prefix( IXMLDOMNode_from_impl(&This->node), p );
 507 }
 508
 509 static HRESULT WINAPI domtext_get_baseName(
 510     IXMLDOMText *iface,
 511     BSTR* p)
 512 {
 513     domtext *This = impl_from_IXMLDOMText( iface );
 514     return IXMLDOMNode_get_baseName( IXMLDOMNode_from_impl(&This->node), p );
 515 }
 516
 517 static HRESULT WINAPI domtext_transformNodeToObject(
 518     IXMLDOMText *iface,
 519     IXMLDOMNode* domNode, VARIANT var1)
 520 {
 521     domtext *This = impl_from_IXMLDOMText( iface );
 522     return IXMLDOMNode_transformNodeToObject( IXMLDOMNode_from_impl(&This->node), domNode, var1 );
 523 }
 524
 525 static HRESULT WINAPI domtext_get_data(
 526     IXMLDOMText *iface,
 527     BSTR *p)
 528 {
 529     domtext *This = impl_from_IXMLDOMText( iface );
 530
 531     if(!p)
 532         return E_INVALIDARG;
 533
 534     *p = bstr_from_xmlChar(This->node.node->content);
 535     return S_OK;
 536 }
 537
 538 static HRESULT WINAPI domtext_put_data(
 539     IXMLDOMText *iface,
 540     BSTR data)
 541 {
 542     domtext *This = impl_from_IXMLDOMText( iface );
 543     VARIANT val;
 544
 545     TRACE("(%p)->(%s)\n", This, debugstr_w(data) );
 546
 547     V_VT(&val) = VT_BSTR;
 548     V_BSTR(&val) = data;
 549     return node_put_value(&This->node, &val);
 550 }
 551
 552 static HRESULT WINAPI domtext_get_length(
 553     IXMLDOMText *iface,
 554     LONG *len)
 555 {
 556     domtext *This = impl_from_IXMLDOMText( iface );
 557     HRESULT hr;
 558     BSTR data;
 559
 560     TRACE("(%p)->(%p)\n", This, len);
 561
 562     if(!len)
 563         return E_INVALIDARG;
 564
 565     hr = IXMLDOMText_get_data(iface, &data);
 566     if(hr == S_OK)
 567     {
 568         *len = SysStringLen(data);
 569         SysFreeString(data);
 570     }
 571
 572     return hr;
 573 }
 574
 575 static HRESULT WINAPI domtext_substringData(
 576     IXMLDOMText *iface,
 577     LONG offset, LONG count, BSTR *p)
 578 {
 579     domtext *This = impl_from_IXMLDOMText( iface );
 580     HRESULT hr;
 581     BSTR data;
 582
 583     TRACE("(%p)->(%d %d %p)\n", This, offset, count, p);
 584
 585     if(!p)
 586         return E_INVALIDARG;
 587
 588     *p = NULL;
 589     if(offset < 0 || count < 0)
 590         return E_INVALIDARG;
 591
 592     if(count == 0)
 593         return S_FALSE;
 594
 595     hr = IXMLDOMText_get_data(iface, &data);
 596     if(hr == S_OK)
 597     {
 598         LONG len = SysStringLen(data);
 599
 600         if(offset < len)
 601         {
 602             if(offset + count > len)
 603                 *p = SysAllocString(&data[offset]);
 604             else
 605                 *p = SysAllocStringLen(&data[offset], count);
 606         }
 607         else
 608             hr = S_FALSE;
 609
 610         SysFreeString(data);
 611     }
 612
 613     return hr;
 614 }
 615
 616 static HRESULT WINAPI domtext_appendData(
 617     IXMLDOMText *iface,
 618     BSTR p)
 619 {
 620     domtext *This = impl_from_IXMLDOMText( iface );
 621     HRESULT hr;
 622     BSTR data;
 623     LONG p_len;
 624
 625     TRACE("(%p)->(%s)\n", This, debugstr_w(p));
 626
 627     /* Nothing to do if NULL or an Empty string passed in. */
 628     if((p_len = SysStringLen(p)) == 0) return S_OK;
 629
 630     hr = IXMLDOMText_get_data(iface, &data);
 631     if(hr == S_OK)
 632     {
 633         LONG len = SysStringLen(data);
 634         BSTR str = SysAllocStringLen(NULL, p_len + len);
 635
 636         memcpy(str, data, len*sizeof(WCHAR));
 637         memcpy(&str[len], p, p_len*sizeof(WCHAR));
 638         str[len+p_len] = 0;
 639
 640         hr = IXMLDOMText_put_data(iface, str);
 641
 642         SysFreeString(str);
 643         SysFreeString(data);
 644     }
 645
 646     return hr;
 647 }
 648
 649 static HRESULT WINAPI domtext_insertData(
 650     IXMLDOMText *iface,
 651     LONG offset, BSTR p)
 652 {
 653     domtext *This = impl_from_IXMLDOMText( iface );
 654     HRESULT hr;
 655     BSTR data;
 656     LONG p_len;
 657
 658     TRACE("(%p)->(%d %s)\n", This, offset, debugstr_w(p));
 659
 660     /* If have a NULL or empty string, don't do anything. */
 661     if((p_len = SysStringLen(p)) == 0)
 662         return S_OK;
 663
 664     if(offset < 0)
 665     {
 666         return E_INVALIDARG;
 667     }
 668
 669     hr = IXMLDOMText_get_data(iface, &data);
 670     if(hr == S_OK)
 671     {
 672         LONG len = SysStringLen(data);
 673         BSTR str;
 674
 675         if(len < offset)
 676         {
 677             SysFreeString(data);
 678             return E_INVALIDARG;
 679         }
 680
 681         str = SysAllocStringLen(NULL, len + p_len);
 682         /* start part, supplied string and end part */
 683         memcpy(str, data, offset*sizeof(WCHAR));
 684         memcpy(&str[offset], p, p_len*sizeof(WCHAR));
 685         memcpy(&str[offset+p_len], &data[offset], (len-offset)*sizeof(WCHAR));
 686         str[len+p_len] = 0;
 687
 688         hr = IXMLDOMText_put_data(iface, str);
 689
 690         SysFreeString(str);
 691         SysFreeString(data);
 692     }
 693
 694     return hr;
 695 }
 696
 697 static HRESULT WINAPI domtext_deleteData(
 698     IXMLDOMText *iface,
 699     LONG offset, LONG count)
 700 {
 701     HRESULT hr;
 702     LONG len = -1;
 703     BSTR str;
 704
 705     TRACE("(%p)->(%d %d)\n", iface, offset, count);
 706
 707     hr = IXMLDOMText_get_length(iface, &len);
 708     if(hr != S_OK) return hr;
 709
 710     if((offset < 0) || (offset > len) || (count < 0))
 711         return E_INVALIDARG;
 712
 713     if(len == 0) return S_OK;
 714
 715     /* cutting start or end */
 716     if((offset == 0) || ((count + offset) >= len))
 717     {
 718         if(offset == 0)
 719             IXMLDOMText_substringData(iface, count, len - count, &str);
 720         else
 721             IXMLDOMText_substringData(iface, 0, offset, &str);
 722         hr = IXMLDOMText_put_data(iface, str);
 723     }
 724     else
 725     /* cutting from the inside */
 726     {
 727         BSTR str_end;
 728
 729         IXMLDOMText_substringData(iface, 0, offset, &str);
 730         IXMLDOMText_substringData(iface, offset + count, len - count, &str_end);
 731
 732         hr = IXMLDOMText_put_data(iface, str);
 733         if(hr == S_OK)
 734             hr = IXMLDOMText_appendData(iface, str_end);
 735
 736         SysFreeString(str_end);
 737     }
 738
 739     SysFreeString(str);
 740
 741     return hr;
 742 }
 743
 744 static HRESULT WINAPI domtext_replaceData(
 745     IXMLDOMText *iface,
 746     LONG offset, LONG count, BSTR p)
 747 {
 748     domtext *This = impl_from_IXMLDOMText( iface );
 749     HRESULT hr;
 750
 751     TRACE("(%p)->(%d %d %s)\n", This, offset, count, debugstr_w(p));
 752
 753     hr = IXMLDOMText_deleteData(iface, offset, count);
 754
 755     if (hr == S_OK)
 756        hr = IXMLDOMText_insertData(iface, offset, p);
 757
 758     return hr;
 759 }
 760
 761 static HRESULT WINAPI domtext_splitText(
 762     IXMLDOMText *iface,
 763     LONG offset, IXMLDOMText **txtNode)
 764 {
 765     domtext *This = impl_from_IXMLDOMText( iface );
 766     LONG length = 0;
 767
 768     TRACE("(%p)->(%d %p)\n", This, offset, txtNode);
 769
 770     if (!txtNode || offset < 0) return E_INVALIDARG;
 771
 772     *txtNode = NULL;
 773
 774     IXMLDOMText_get_length(iface, &length);
 775
 776     if (offset > length) return E_INVALIDARG;
 777     if (offset == length) return S_FALSE;
 778
 779     FIXME("adjacent text nodes are not supported\n");
 780
 781     return E_NOTIMPL;
 782 }
 783
 784 static const struct IXMLDOMTextVtbl domtext_vtbl =
 785 {
 786     domtext_QueryInterface,
 787     domtext_AddRef,
 788     domtext_Release,
 789     domtext_GetTypeInfoCount,
 790     domtext_GetTypeInfo,
 791     domtext_GetIDsOfNames,
 792     domtext_Invoke,
 793     domtext_get_nodeName,
 794     domtext_get_nodeValue,
 795     domtext_put_nodeValue,
 796     domtext_get_nodeType,
 797     domtext_get_parentNode,
 798     domtext_get_childNodes,
 799     domtext_get_firstChild,
 800     domtext_get_lastChild,
 801     domtext_get_previousSibling,
 802     domtext_get_nextSibling,
 803     domtext_get_attributes,
 804     domtext_insertBefore,
 805     domtext_replaceChild,
 806     domtext_removeChild,
 807     domtext_appendChild,
 808     domtext_hasChildNodes,
 809     domtext_get_ownerDocument,
 810     domtext_cloneNode,
 811     domtext_get_nodeTypeString,
 812     domtext_get_text,
 813     domtext_put_text,
 814     domtext_get_specified,
 815     domtext_get_definition,
 816     domtext_get_nodeTypedValue,
 817     domtext_put_nodeTypedValue,
 818     domtext_get_dataType,
 819     domtext_put_dataType,
 820     domtext_get_xml,
 821     domtext_transformNode,
 822     domtext_selectNodes,
 823     domtext_selectSingleNode,
 824     domtext_get_parsed,
 825     domtext_get_namespaceURI,
 826     domtext_get_prefix,
 827     domtext_get_baseName,
 828     domtext_transformNodeToObject,
 829     domtext_get_data,
 830     domtext_put_data,
 831     domtext_get_length,
 832     domtext_substringData,
 833     domtext_appendData,
 834     domtext_insertData,
 835     domtext_deleteData,
 836     domtext_replaceData,
 837     domtext_splitText
 838 };
 839
 840 IUnknown* create_text( xmlNodePtr text )
 841 {
 842     domtext *This;
 843
 844     This = heap_alloc( sizeof *This );
 845     if ( !This )
 846         return NULL;
 847
 848     This->lpVtbl = &domtext_vtbl;
 849     This->ref = 1;
 850
 851     init_xmlnode(&This->node, text, (IXMLDOMNode*)&This->lpVtbl, NULL);
 852
 853     return (IUnknown*) &This->lpVtbl;
 854 }
 855
 856 #endif