dlls/hlink/link.c

   1 /*
   2  * Implementation of hyperlinking (hlink.dll)
   3  *
   4  * Copyright 2005 Aric Stewart for CodeWeavers
   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 "hlink_private.h"
  22
  23 #include "shellapi.h"
  24 #include "hlguids.h"
  25
  26 #include "wine/debug.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(hlink);
  29
  30 #define HLINK_SAVE_MAGIC    0x00000002
  31 #define HLINK_SAVE_MONIKER_PRESENT      0x01
  32 #define HLINK_SAVE_MONIKER_IS_ABSOLUTE  0x02
  33 #define HLINK_SAVE_LOCATION_PRESENT     0x08
  34 #define HLINK_SAVE_FRIENDLY_PRESENT     0x10
  35 /* 0x20, 0x40 unknown */
  36 #define HLINK_SAVE_TARGET_FRAME_PRESENT 0x80
  37 /* known flags */
  38 #define HLINK_SAVE_ALL (HLINK_SAVE_TARGET_FRAME_PRESENT|HLINK_SAVE_FRIENDLY_PRESENT|HLINK_SAVE_LOCATION_PRESENT|0x04|HLINK_SAVE_MONIKER_IS_ABSOLUTE|HLINK_SAVE_MONIKER_PRESENT)
  39
  40 static const IHlinkVtbl              hlvt;
  41 static const IPersistStreamVtbl      psvt;
  42 static const IDataObjectVtbl         dovt;
  43
  44 typedef struct
  45 {
  46     const IHlinkVtbl    *lpVtbl;
  47     LONG                ref;
  48
  49     const IPersistStreamVtbl    *lpPSVtbl;
  50     const IDataObjectVtbl       *lpDOVtbl;
  51
  52     LPWSTR              FriendlyName;
  53     LPWSTR              Location;
  54     LPWSTR              Target;
  55     LPWSTR              TargetFrameName;
  56     IMoniker            *Moniker;
  57     IHlinkSite          *Site;
  58     DWORD               SiteData;
  59     BOOL                absolute;
  60 } HlinkImpl;
  61
  62
  63 static inline HlinkImpl* HlinkImpl_from_IPersistStream( IPersistStream* iface)
  64 {
  65     return (HlinkImpl*) ((CHAR*)iface - FIELD_OFFSET(HlinkImpl, lpPSVtbl));
  66 }
  67
  68 static inline HlinkImpl* HlinkImpl_from_IDataObject( IDataObject* iface)
  69 {
  70     return (HlinkImpl*) ((CHAR*)iface - FIELD_OFFSET(HlinkImpl, lpDOVtbl));
  71 }
  72
  73 static inline void __GetMoniker(HlinkImpl* This, IMoniker** moniker)
  74 {
  75     *moniker = NULL;
  76     if (This->Moniker)
  77     {
  78         *moniker = This->Moniker;
  79         if (*moniker)
  80             IMoniker_AddRef(*moniker);
  81     }
  82     else if (This->Site)
  83     {
  84         IHlinkSite_GetMoniker(This->Site, This->SiteData,
  85                 OLEGETMONIKER_FORCEASSIGN, OLEWHICHMK_CONTAINER,
  86                 (LPVOID)moniker);
  87     }
  88 }
  89
  90 HRESULT WINAPI HLink_Constructor(IUnknown *pUnkOuter, REFIID riid,
  91         LPVOID *ppv)
  92 {
  93     HlinkImpl * hl;
  94
  95     TRACE("unkOut=%p riid=%s\n", pUnkOuter, debugstr_guid(riid));
  96     *ppv = NULL;
  97
  98     if (pUnkOuter)
  99         return CLASS_E_NOAGGREGATION;
 100
 101     hl = heap_alloc_zero(sizeof(HlinkImpl));
 102     if (!hl)
 103         return E_OUTOFMEMORY;
 104
 105     hl->ref = 1;
 106     hl->lpVtbl = &hlvt;
 107     hl->lpPSVtbl = &psvt;
 108     hl->lpDOVtbl = &dovt;
 109
 110     *ppv = hl;
 111     return S_OK;
 112 }
 113
 114 static HRESULT WINAPI IHlink_fnQueryInterface(IHlink* iface, REFIID riid,
 115         LPVOID *ppvObj)
 116 {
 117     HlinkImpl  *This = (HlinkImpl*)iface;
 118
 119     TRACE ("(%p)->(%s,%p)\n", This, debugstr_guid (riid), ppvObj);
 120
 121     *ppvObj = NULL;
 122
 123     if (IsEqualIID(riid, &IID_IUnknown) || (IsEqualIID(riid, &IID_IHlink)))
 124         *ppvObj = This;
 125     else if (IsEqualIID(riid, &IID_IPersistStream))
 126         *ppvObj = (LPVOID*)&(This->lpPSVtbl);
 127     else if (IsEqualIID(riid, &IID_IDataObject))
 128         *ppvObj = (LPVOID*)&(This->lpDOVtbl);
 129
 130     if (*ppvObj)
 131     {
 132         IUnknown_AddRef((IUnknown*)(*ppvObj));
 133         return S_OK;
 134     }
 135     return E_NOINTERFACE;
 136 }
 137
 138 static ULONG WINAPI IHlink_fnAddRef (IHlink* iface)
 139 {
 140     HlinkImpl  *This = (HlinkImpl*)iface;
 141     ULONG refCount = InterlockedIncrement(&This->ref);
 142
 143     TRACE("(%p)->(count=%u)\n", This, refCount - 1);
 144
 145     return refCount;
 146 }
 147
 148 static ULONG WINAPI IHlink_fnRelease (IHlink* iface)
 149 {
 150     HlinkImpl  *This = (HlinkImpl*)iface;
 151     ULONG refCount = InterlockedDecrement(&This->ref);
 152
 153     TRACE("(%p)->(count=%u)\n", This, refCount + 1);
 154     if (refCount)
 155         return refCount;
 156
 157     TRACE("-- destroying IHlink (%p)\n", This);
 158     heap_free(This->FriendlyName);
 159     heap_free(This->Target);
 160     heap_free(This->TargetFrameName);
 161     heap_free(This->Location);
 162     if (This->Moniker)
 163         IMoniker_Release(This->Moniker);
 164     if (This->Site)
 165         IHlinkSite_Release(This->Site);
 166     heap_free(This);
 167     return 0;
 168 }
 169
 170 static HRESULT WINAPI IHlink_fnSetHlinkSite( IHlink* iface,
 171         IHlinkSite* pihlSite, DWORD dwSiteData)
 172 {
 173     HlinkImpl  *This = (HlinkImpl*)iface;
 174
 175     TRACE("(%p)->(%p %i)\n", This, pihlSite, dwSiteData);
 176
 177     if (This->Site)
 178         IHlinkSite_Release(This->Site);
 179
 180     This->Site = pihlSite;
 181     if (This->Site)
 182         IHlinkSite_AddRef(This->Site);
 183
 184     This->SiteData = dwSiteData;
 185
 186     return S_OK;
 187 }
 188
 189 static HRESULT WINAPI IHlink_fnGetHlinkSite( IHlink* iface,
 190         IHlinkSite** ppihlSite, DWORD *pdwSiteData)
 191 {
 192     HlinkImpl  *This = (HlinkImpl*)iface;
 193
 194     TRACE("(%p)->(%p %p)\n", This, ppihlSite, pdwSiteData);
 195
 196     *ppihlSite = This->Site;
 197     *pdwSiteData = This->SiteData;
 198
 199     if (This->Site)
 200         IHlinkSite_AddRef(This->Site);
 201
 202     return S_OK;
 203 }
 204
 205 static HRESULT WINAPI IHlink_fnSetMonikerReference( IHlink* iface,
 206         DWORD rfHLSETF, IMoniker *pmkTarget, LPCWSTR pwzLocation)
 207 {
 208     HlinkImpl  *This = (HlinkImpl*)iface;
 209
 210     FIXME("(%p)->(%i %p %s)\n", This, rfHLSETF, pmkTarget,
 211             debugstr_w(pwzLocation));
 212
 213     if (This->Moniker)
 214         IMoniker_Release(This->Moniker);
 215
 216     This->Moniker = pmkTarget;
 217     if (This->Moniker)
 218     {
 219         LPOLESTR display_name;
 220         IMoniker_AddRef(This->Moniker);
 221         IMoniker_GetDisplayName(This->Moniker, NULL, NULL, &display_name);
 222         This->absolute = display_name && strchrW(display_name, ':');
 223         CoTaskMemFree(display_name);
 224     }
 225
 226     heap_free(This->Location);
 227     This->Location = hlink_strdupW( pwzLocation );
 228
 229     return S_OK;
 230 }
 231
 232 static HRESULT WINAPI IHlink_fnSetStringReference(IHlink* iface,
 233         DWORD grfHLSETF, LPCWSTR pwzTarget, LPCWSTR pwzLocation)
 234 {
 235     HlinkImpl  *This = (HlinkImpl*)iface;
 236
 237     TRACE("(%p)->(%i %s %s)\n", This, grfHLSETF, debugstr_w(pwzTarget),
 238             debugstr_w(pwzLocation));
 239
 240     if (grfHLSETF & HLINKSETF_TARGET)
 241     {
 242         heap_free(This->Target);
 243         This->Target = hlink_strdupW( pwzTarget );
 244     }
 245     if (grfHLSETF & HLINKSETF_LOCATION)
 246     {
 247         heap_free(This->Location);
 248         This->Location = hlink_strdupW( pwzLocation );
 249     }
 250
 251     return S_OK;
 252 }
 253
 254 static HRESULT WINAPI IHlink_fnGetMonikerReference(IHlink* iface,
 255         DWORD dwWhichRef, IMoniker **ppimkTarget, LPWSTR *ppwzLocation)
 256 {
 257     HlinkImpl  *This = (HlinkImpl*)iface;
 258
 259     TRACE("(%p) -> (%i %p %p)\n", This, dwWhichRef, ppimkTarget,
 260             ppwzLocation);
 261
 262     if(ppimkTarget)
 263         __GetMoniker(This, ppimkTarget);
 264
 265     if (ppwzLocation)
 266         IHlink_GetStringReference(iface, dwWhichRef, NULL, ppwzLocation);
 267
 268     return S_OK;
 269 }
 270
 271 static HRESULT WINAPI IHlink_fnGetStringReference (IHlink* iface,
 272         DWORD dwWhichRef, LPWSTR *ppwzTarget, LPWSTR *ppwzLocation)
 273 {
 274     HlinkImpl  *This = (HlinkImpl*)iface;
 275
 276     FIXME("(%p) -> (%i %p %p)\n", This, dwWhichRef, ppwzTarget, ppwzLocation);
 277
 278     if (ppwzTarget)
 279     {
 280         *ppwzTarget = hlink_co_strdupW( This->Target );
 281
 282         if (!This->Target)
 283         {
 284             IMoniker* mon;
 285             __GetMoniker(This, &mon);
 286             if (mon)
 287             {
 288                 IBindCtx *pbc;
 289
 290                 CreateBindCtx( 0, &pbc);
 291                 IMoniker_GetDisplayName(mon, pbc, NULL, ppwzTarget);
 292                 IBindCtx_Release(pbc);
 293                 IMoniker_Release(mon);
 294             }
 295             else
 296                 FIXME("Unhandled case, no set Target and no moniker\n");
 297         }
 298     }
 299     if (ppwzLocation)
 300         *ppwzLocation = hlink_co_strdupW( This->Location );
 301
 302     TRACE("(Target: %s Location: %s)\n",
 303             (ppwzTarget)?debugstr_w(*ppwzTarget):"<NULL>",
 304             (ppwzLocation)?debugstr_w(*ppwzLocation):"<NULL>");
 305
 306     return S_OK;
 307 }
 308
 309 static HRESULT WINAPI IHlink_fnSetFriendlyName (IHlink *iface,
 310         LPCWSTR pwzFriendlyName)
 311 {
 312     HlinkImpl  *This = (HlinkImpl*)iface;
 313
 314     TRACE("(%p) -> (%s)\n", This, debugstr_w(pwzFriendlyName));
 315
 316     heap_free(This->FriendlyName);
 317     This->FriendlyName = hlink_strdupW( pwzFriendlyName );
 318
 319     return S_OK;
 320 }
 321
 322 static HRESULT WINAPI IHlink_fnGetFriendlyName (IHlink* iface,
 323         DWORD grfHLFNAMEF, LPWSTR* ppwzFriendlyName)
 324 {
 325     HlinkImpl  *This = (HlinkImpl*)iface;
 326
 327     TRACE("(%p) -> (%i %p)\n", This, grfHLFNAMEF, ppwzFriendlyName);
 328
 329     /* FIXME: Only using explicitly set and cached friendly names */
 330
 331     if (This->FriendlyName)
 332         *ppwzFriendlyName = hlink_co_strdupW( This->FriendlyName );
 333     else
 334     {
 335         IMoniker *moniker;
 336         __GetMoniker(This, &moniker);
 337         if (moniker)
 338         {
 339             IBindCtx *bcxt;
 340             CreateBindCtx(0, &bcxt);
 341
 342             IMoniker_GetDisplayName(moniker, bcxt, NULL, ppwzFriendlyName);
 343             IBindCtx_Release(bcxt);
 344             IMoniker_Release(moniker);
 345         }
 346         else
 347             *ppwzFriendlyName = NULL;
 348     }
 349
 350     return S_OK;
 351 }
 352
 353 static HRESULT WINAPI IHlink_fnSetTargetFrameName(IHlink* iface,
 354         LPCWSTR pwzTargetFramename)
 355 {
 356     HlinkImpl  *This = (HlinkImpl*)iface;
 357     TRACE("(%p)->(%s)\n", This, debugstr_w(pwzTargetFramename));
 358
 359     heap_free(This->TargetFrameName);
 360     This->TargetFrameName = hlink_strdupW( pwzTargetFramename );
 361
 362     return S_OK;
 363 }
 364
 365 static HRESULT WINAPI IHlink_fnGetTargetFrameName(IHlink* iface,
 366         LPWSTR *ppwzTargetFrameName)
 367 {
 368     HlinkImpl  *This = (HlinkImpl*)iface;
 369
 370     TRACE("(%p)->(%p)\n", This, ppwzTargetFrameName);
 371     *ppwzTargetFrameName = hlink_co_strdupW( This->TargetFrameName );
 372
 373     return S_OK;
 374 }
 375
 376 static HRESULT WINAPI IHlink_fnGetMiscStatus(IHlink* iface, DWORD* pdwStatus)
 377 {
 378     FIXME("\n");
 379     return E_NOTIMPL;
 380 }
 381
 382 static HRESULT WINAPI IHlink_fnNavigate(IHlink* iface, DWORD grfHLNF, LPBC pbc,
 383         IBindStatusCallback *pbsc, IHlinkBrowseContext *phbc)
 384 {
 385     HlinkImpl  *This = (HlinkImpl*)iface;
 386     IMoniker *mon = NULL;
 387
 388     FIXME("Semi-Stub:(%p)->(%i %p %p %p)\n", This, grfHLNF, pbc, pbsc, phbc);
 389
 390     if (This->Site)
 391         IHlinkSite_ReadyToNavigate(This->Site, This->SiteData, 0);
 392
 393     __GetMoniker(This, &mon);
 394     TRACE("Moniker %p\n", mon);
 395
 396     if (mon)
 397     {
 398         IBindCtx *bcxt;
 399         IHlinkTarget *target = NULL;
 400         HRESULT r = S_OK;
 401
 402         CreateBindCtx(0, &bcxt);
 403
 404         RegisterBindStatusCallback(bcxt, pbsc, NULL, 0);
 405
 406         r = IMoniker_BindToObject(mon, bcxt, NULL, &IID_IHlinkTarget,
 407                 (LPVOID*)&target);
 408         TRACE("IHlinkTarget returned 0x%x\n", r);
 409         if (r == S_OK)
 410         {
 411             IHlinkTarget_SetBrowseContext(target, phbc);
 412             IHlinkTarget_Navigate(target, grfHLNF, This->Location);
 413             IHlinkTarget_Release(target);
 414         }
 415         else
 416         {
 417             static const WCHAR szOpen[] = {'o','p','e','n',0};
 418             LPWSTR target = NULL;
 419
 420             r = IHlink_GetStringReference(iface, HLINKGETREF_DEFAULT, &target, NULL);
 421             if (SUCCEEDED(r) && target)
 422             {
 423                 ShellExecuteW(NULL, szOpen, target, NULL, NULL, SW_SHOW);
 424                 CoTaskMemFree(target);
 425             }
 426         }
 427
 428         RevokeBindStatusCallback(bcxt, pbsc);
 429
 430         IBindCtx_Release(bcxt);
 431         IMoniker_Release(mon);
 432     }
 433
 434     if (This->Site)
 435         IHlinkSite_OnNavigationComplete(This->Site, This->SiteData, 0, 0, NULL);
 436
 437     TRACE("Finished Navigation\n");
 438     return S_OK;
 439 }
 440
 441 static HRESULT WINAPI IHlink_fnSetAdditonalParams(IHlink* iface,
 442         LPCWSTR pwzAdditionalParams)
 443 {
 444     FIXME("\n");
 445     return E_NOTIMPL;
 446 }
 447
 448 static HRESULT WINAPI IHlink_fnGetAdditionalParams(IHlink* iface,
 449         LPWSTR* ppwzAdditionalParams)
 450 {
 451     FIXME("\n");
 452     return E_NOTIMPL;
 453 }
 454
 455 static const IHlinkVtbl hlvt =
 456 {
 457     IHlink_fnQueryInterface,
 458     IHlink_fnAddRef,
 459     IHlink_fnRelease,
 460     IHlink_fnSetHlinkSite,
 461     IHlink_fnGetHlinkSite,
 462     IHlink_fnSetMonikerReference,
 463     IHlink_fnGetMonikerReference,
 464     IHlink_fnSetStringReference,
 465     IHlink_fnGetStringReference,
 466     IHlink_fnSetFriendlyName,
 467     IHlink_fnGetFriendlyName,
 468     IHlink_fnSetTargetFrameName,
 469     IHlink_fnGetTargetFrameName,
 470     IHlink_fnGetMiscStatus,
 471     IHlink_fnNavigate,
 472     IHlink_fnSetAdditonalParams,
 473     IHlink_fnGetAdditionalParams
 474 };
 475
 476 static HRESULT WINAPI IDataObject_fnQueryInterface(IDataObject* iface,
 477         REFIID riid, LPVOID *ppvObj)
 478 {
 479     HlinkImpl *This = HlinkImpl_from_IDataObject(iface);
 480     TRACE("%p\n", This);
 481     return IHlink_QueryInterface((IHlink*)This, riid, ppvObj);
 482 }
 483
 484 static ULONG WINAPI IDataObject_fnAddRef (IDataObject* iface)
 485 {
 486     HlinkImpl *This = HlinkImpl_from_IDataObject(iface);
 487     TRACE("%p\n", This);
 488     return IHlink_AddRef((IHlink*)This);
 489 }
 490
 491 static ULONG WINAPI IDataObject_fnRelease (IDataObject* iface)
 492 {
 493     HlinkImpl *This = HlinkImpl_from_IDataObject(iface);
 494     TRACE("%p\n", This);
 495     return IHlink_Release((IHlink*)This);
 496 }
 497
 498 static HRESULT WINAPI IDataObject_fnGetData(IDataObject* iface,
 499         FORMATETC* pformatetcIn, STGMEDIUM* pmedium)
 500 {
 501     FIXME("\n");
 502     return E_NOTIMPL;
 503 }
 504
 505 static HRESULT WINAPI IDataObject_fnGetDataHere(IDataObject* iface,
 506         FORMATETC* pformatetc, STGMEDIUM* pmedium)
 507 {
 508     FIXME("\n");
 509     return E_NOTIMPL;
 510 }
 511
 512 static HRESULT WINAPI IDataObject_fnQueryGetData(IDataObject* iface,
 513         FORMATETC* pformatetc)
 514 {
 515     FIXME("\n");
 516     return E_NOTIMPL;
 517 }
 518
 519 static HRESULT WINAPI IDataObject_fnGetConicalFormatEtc(IDataObject* iface,
 520         FORMATETC* pformatetcIn, FORMATETC* pformatetcOut)
 521 {
 522     FIXME("\n");
 523     return E_NOTIMPL;
 524 }
 525
 526 static HRESULT WINAPI IDataObject_fnSetData(IDataObject* iface,
 527         FORMATETC* pformatetc, STGMEDIUM* pmedium, BOOL fRelease)
 528 {
 529     FIXME("\n");
 530     return E_NOTIMPL;
 531 }
 532
 533 static HRESULT WINAPI IDataObject_fnEnumFormatEtc(IDataObject* iface,
 534         DWORD dwDirection, IEnumFORMATETC** ppenumFormatEtc)
 535 {
 536     FIXME("\n");
 537     return E_NOTIMPL;
 538 }
 539
 540 static HRESULT WINAPI IDataObject_fnDAdvise(IDataObject* iface,
 541         FORMATETC* pformatetc, DWORD advf, IAdviseSink* pAdvSink,
 542         DWORD* pdwConnection)
 543 {
 544     FIXME("\n");
 545     return E_NOTIMPL;
 546 }
 547
 548 static HRESULT WINAPI IDataObject_fnDUnadvise(IDataObject* iface,
 549         DWORD dwConnection)
 550 {
 551     FIXME("\n");
 552     return E_NOTIMPL;
 553 }
 554
 555 static HRESULT WINAPI IDataObject_fnEnumDAdvise(IDataObject* iface,
 556         IEnumSTATDATA** ppenumAdvise)
 557 {
 558     FIXME("\n");
 559     return E_NOTIMPL;
 560 }
 561
 562 static const IDataObjectVtbl dovt =
 563 {
 564     IDataObject_fnQueryInterface,
 565     IDataObject_fnAddRef,
 566     IDataObject_fnRelease,
 567     IDataObject_fnGetData,
 568     IDataObject_fnGetDataHere,
 569     IDataObject_fnQueryGetData,
 570     IDataObject_fnGetConicalFormatEtc,
 571     IDataObject_fnSetData,
 572     IDataObject_fnEnumFormatEtc,
 573     IDataObject_fnDAdvise,
 574     IDataObject_fnDUnadvise,
 575     IDataObject_fnEnumDAdvise
 576 };
 577
 578 static HRESULT WINAPI IPersistStream_fnQueryInterface(IPersistStream* iface,
 579         REFIID riid, LPVOID *ppvObj)
 580 {
 581     HlinkImpl *This = HlinkImpl_from_IPersistStream(iface);
 582     TRACE("(%p)\n", This);
 583     return IHlink_QueryInterface((IHlink*)This, riid, ppvObj);
 584 }
 585
 586 static ULONG WINAPI IPersistStream_fnAddRef (IPersistStream* iface)
 587 {
 588     HlinkImpl *This = HlinkImpl_from_IPersistStream(iface);
 589     TRACE("(%p)\n", This);
 590     return IHlink_AddRef((IHlink*)This);
 591 }
 592
 593 static ULONG WINAPI IPersistStream_fnRelease (IPersistStream* iface)
 594 {
 595     HlinkImpl *This = HlinkImpl_from_IPersistStream(iface);
 596     TRACE("(%p)\n", This);
 597     return IHlink_Release((IHlink*)This);
 598 }
 599
 600 static HRESULT WINAPI IPersistStream_fnGetClassID(IPersistStream* iface,
 601         CLSID* pClassID)
 602 {
 603     HlinkImpl *This = HlinkImpl_from_IPersistStream(iface);
 604     TRACE("(%p)\n", This);
 605     *pClassID = CLSID_StdHlink;
 606     return S_OK;
 607 }
 608
 609 static HRESULT WINAPI IPersistStream_fnIsDirty(IPersistStream* iface)
 610 {
 611     FIXME("\n");
 612     return E_NOTIMPL;
 613 }
 614
 615 static HRESULT write_hlink_string(IStream *pStm, LPCWSTR str)
 616 {
 617     DWORD len;
 618     HRESULT hr;
 619
 620     TRACE("(%p, %s)\n", pStm, debugstr_w(str));
 621
 622     len = strlenW(str) + 1;
 623
 624     hr = IStream_Write(pStm, &len, sizeof(len), NULL);
 625     if (FAILED(hr)) return hr;
 626
 627     hr = IStream_Write(pStm, str, len * sizeof(WCHAR), NULL);
 628     if (FAILED(hr)) return hr;
 629
 630     return S_OK;
 631 }
 632
 633 static inline ULONG size_hlink_string(LPCWSTR str)
 634 {
 635     return sizeof(DWORD) + (strlenW(str) + 1) * sizeof(WCHAR);
 636 }
 637
 638 static HRESULT read_hlink_string(IStream *pStm, LPWSTR *out_str)
 639 {
 640     LPWSTR str;
 641     DWORD len;
 642     ULONG read;
 643     HRESULT hr;
 644
 645     hr = IStream_Read(pStm, &len, sizeof(len), &read);
 646     if (FAILED(hr)) return hr;
 647     if (read != sizeof(len)) return STG_E_READFAULT;
 648
 649     TRACE("read len %d\n", len);
 650
 651     str = heap_alloc(len * sizeof(WCHAR));
 652     if (!str) return E_OUTOFMEMORY;
 653
 654     hr = IStream_Read(pStm, str, len * sizeof(WCHAR), &read);
 655     if (FAILED(hr))
 656     {
 657         heap_free(str);
 658         return hr;
 659     }
 660     if (read != len * sizeof(WCHAR))
 661     {
 662         heap_free(str);
 663         return STG_E_READFAULT;
 664     }
 665     TRACE("read string %s\n", debugstr_w(str));
 666
 667     *out_str = str;
 668     return S_OK;
 669 }
 670
 671 static HRESULT WINAPI IPersistStream_fnLoad(IPersistStream* iface,
 672         IStream* pStm)
 673 {
 674     HRESULT r;
 675     DWORD hdr[2];
 676     DWORD read;
 677     HlinkImpl *This = HlinkImpl_from_IPersistStream(iface);
 678
 679     r = IStream_Read(pStm, &hdr, sizeof(hdr), &read);
 680     if (read != sizeof(hdr) || (hdr[0] != HLINK_SAVE_MAGIC))
 681     {
 682         r = E_FAIL;
 683         goto end;
 684     }
 685     if (hdr[1] & ~HLINK_SAVE_ALL)
 686         FIXME("unknown flag(s) 0x%x\n", hdr[1] & ~HLINK_SAVE_ALL);
 687
 688     if (hdr[1] & HLINK_SAVE_TARGET_FRAME_PRESENT)
 689     {
 690         TRACE("loading target frame name\n");
 691         r = read_hlink_string(pStm, &This->TargetFrameName);
 692         if (FAILED(r)) goto end;
 693     }
 694
 695     if (hdr[1] & HLINK_SAVE_FRIENDLY_PRESENT)
 696     {
 697         TRACE("loading target friendly name\n");
 698         if (!(hdr[1] & 0x4))
 699             FIXME("0x4 flag not present with friendly name flag - not sure what this means\n");
 700         r = read_hlink_string(pStm, &This->FriendlyName);
 701         if (FAILED(r)) goto end;
 702     }
 703
 704     if (hdr[1] & HLINK_SAVE_MONIKER_PRESENT)
 705     {
 706         TRACE("loading moniker\n");
 707         r = OleLoadFromStream(pStm, &IID_IMoniker, (LPVOID*)&(This->Moniker));
 708         if (FAILED(r))
 709             goto end;
 710         This->absolute = hdr[1] & HLINK_SAVE_MONIKER_IS_ABSOLUTE ? TRUE : FALSE;
 711     }
 712
 713     if (hdr[1] & HLINK_SAVE_LOCATION_PRESENT)
 714     {
 715         TRACE("loading location\n");
 716         r = read_hlink_string(pStm, &This->Location);
 717         if (FAILED(r)) goto end;
 718     }
 719
 720 end:
 721     TRACE("Load Result 0x%x (%p)\n", r, This->Moniker);
 722
 723     return r;
 724 }
 725
 726 static HRESULT WINAPI IPersistStream_fnSave(IPersistStream* iface,
 727         IStream* pStm, BOOL fClearDirty)
 728 {
 729     HRESULT r = E_FAIL;
 730     HlinkImpl *This = HlinkImpl_from_IPersistStream(iface);
 731     DWORD hdr[2];
 732     IMoniker *moniker;
 733
 734     TRACE("(%p) Moniker(%p)\n", This, This->Moniker);
 735
 736     __GetMoniker(This, &moniker);
 737
 738     hdr[0] = HLINK_SAVE_MAGIC;
 739     hdr[1] = 0;
 740
 741     if (moniker)
 742         hdr[1] |= HLINK_SAVE_MONIKER_PRESENT;
 743     if (This->absolute)
 744         hdr[1] |= HLINK_SAVE_MONIKER_IS_ABSOLUTE;
 745     if (This->Location)
 746         hdr[1] |= HLINK_SAVE_LOCATION_PRESENT;
 747     if (This->FriendlyName)
 748         hdr[1] |= HLINK_SAVE_FRIENDLY_PRESENT | 4 /* FIXME */;
 749     if (This->TargetFrameName)
 750         hdr[1] |= HLINK_SAVE_TARGET_FRAME_PRESENT;
 751
 752     IStream_Write(pStm, &hdr, sizeof(hdr), NULL);
 753
 754     if (This->TargetFrameName)
 755     {
 756         r = write_hlink_string(pStm, This->TargetFrameName);
 757         if (FAILED(r)) goto end;
 758     }
 759
 760     if (This->FriendlyName)
 761     {
 762         r = write_hlink_string(pStm, This->FriendlyName);
 763         if (FAILED(r)) goto end;
 764     }
 765
 766     if (moniker)
 767     {
 768         IPersistStream* monstream;
 769
 770         monstream = NULL;
 771         IMoniker_QueryInterface(moniker, &IID_IPersistStream,
 772                 (LPVOID*)&monstream);
 773         if (monstream)
 774         {
 775             r = OleSaveToStream(monstream, pStm);
 776             IPersistStream_Release(monstream);
 777         }
 778         if (FAILED(r)) goto end;
 779     }
 780
 781     if (This->Location)
 782     {
 783         r = write_hlink_string(pStm, This->Location);
 784         if (FAILED(r)) goto end;
 785     }
 786
 787 end:
 788     if (moniker) IMoniker_Release(moniker);
 789     TRACE("Save Result 0x%x\n", r);
 790
 791     return r;
 792 }
 793
 794 static HRESULT WINAPI IPersistStream_fnGetSizeMax(IPersistStream* iface,
 795         ULARGE_INTEGER* pcbSize)
 796 {
 797     HRESULT r = E_FAIL;
 798     HlinkImpl *This = HlinkImpl_from_IPersistStream(iface);
 799     IMoniker *moniker;
 800
 801     TRACE("(%p) Moniker(%p)\n", This, This->Moniker);
 802
 803     pcbSize->QuadPart = sizeof(DWORD)*2;
 804
 805     if (This->TargetFrameName)
 806         pcbSize->QuadPart += size_hlink_string(This->TargetFrameName);
 807
 808     if (This->FriendlyName)
 809         pcbSize->QuadPart += size_hlink_string(This->FriendlyName);
 810
 811     __GetMoniker(This, &moniker);
 812     if (moniker)
 813     {
 814         IPersistStream* monstream = NULL;
 815         IMoniker_QueryInterface(moniker, &IID_IPersistStream,
 816                 (LPVOID*)&monstream);
 817         if (monstream)
 818         {
 819             ULARGE_INTEGER mon_size;
 820             r = IPersistStream_GetSizeMax(monstream, &mon_size);
 821             pcbSize->QuadPart += mon_size.QuadPart;
 822             IPersistStream_Release(monstream);
 823         }
 824         IMoniker_Release(moniker);
 825     }
 826
 827     if (This->Location)
 828         pcbSize->QuadPart += size_hlink_string(This->Location);
 829
 830     return r;
 831 }
 832
 833 static const IPersistStreamVtbl psvt =
 834 {
 835     IPersistStream_fnQueryInterface,
 836     IPersistStream_fnAddRef,
 837     IPersistStream_fnRelease,
 838     IPersistStream_fnGetClassID,
 839     IPersistStream_fnIsDirty,
 840     IPersistStream_fnLoad,
 841     IPersistStream_fnSave,
 842     IPersistStream_fnGetSizeMax,
 843 };