shell32: Return empty list instead of NULL.
[wine.git] / dlls / hlink / hlink_main.c
blob9823a5d93207ae34ec9660bd5cbf251e4f615732
1 /*
2 * Implementation of hyperlinking (hlink.dll)
4 * Copyright 2005 Aric Stewart for CodeWeavers
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.
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.
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
21 #include "hlink_private.h"
23 #include "winreg.h"
24 #include "rpcproxy.h"
25 #include "hlguids.h"
27 #include "wine/debug.h"
29 WINE_DEFAULT_DEBUG_CHANNEL(hlink);
31 static HINSTANCE instance;
33 typedef HRESULT (*LPFNCREATEINSTANCE)(IUnknown*, REFIID, LPVOID*);
35 typedef struct
37 IClassFactory IClassFactory_iface;
38 LPFNCREATEINSTANCE lpfnCI;
39 } CFImpl;
41 static inline CFImpl *impl_from_IClassFactory(IClassFactory *iface)
43 return CONTAINING_RECORD(iface, CFImpl, IClassFactory_iface);
46 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
48 TRACE("%p %d %p\n", hinstDLL, fdwReason, lpvReserved);
50 switch (fdwReason)
52 case DLL_PROCESS_ATTACH:
53 instance = hinstDLL;
54 DisableThreadLibraryCalls(hinstDLL);
55 break;
56 case DLL_PROCESS_DETACH:
57 break;
59 return TRUE;
62 /***********************************************************************
63 * DllCanUnloadNow (HLINK.@)
65 HRESULT WINAPI DllCanUnloadNow( void )
67 return S_OK;
70 /***********************************************************************
71 * HlinkCreateFromMoniker (HLINK.@)
73 HRESULT WINAPI HlinkCreateFromMoniker( IMoniker *pimkTrgt, LPCWSTR pwzLocation,
74 LPCWSTR pwzFriendlyName, IHlinkSite* pihlsite, DWORD dwSiteData,
75 IUnknown* piunkOuter, REFIID riid, void** ppvObj)
77 IHlink *hl = NULL;
78 HRESULT r = S_OK;
80 TRACE("%p %s %s %p %i %p %s %p\n", pimkTrgt, debugstr_w(pwzLocation),
81 debugstr_w(pwzFriendlyName), pihlsite, dwSiteData, piunkOuter,
82 debugstr_guid(riid), ppvObj);
84 r = CoCreateInstance(&CLSID_StdHlink, piunkOuter, CLSCTX_INPROC_SERVER, riid, (LPVOID*)&hl);
85 if (FAILED(r))
86 return r;
88 IHlink_SetMonikerReference(hl, HLINKSETF_LOCATION | HLINKSETF_TARGET, pimkTrgt, pwzLocation);
90 if (pwzFriendlyName)
91 IHlink_SetFriendlyName(hl, pwzFriendlyName);
92 if (pihlsite)
93 IHlink_SetHlinkSite(hl, pihlsite, dwSiteData);
95 *ppvObj = hl;
97 TRACE("Returning %i\n",r);
99 return r;
102 /***********************************************************************
103 * HlinkCreateFromString (HLINK.@)
105 HRESULT WINAPI HlinkCreateFromString( LPCWSTR pwzTarget, LPCWSTR pwzLocation,
106 LPCWSTR pwzFriendlyName, IHlinkSite* pihlsite, DWORD dwSiteData,
107 IUnknown* piunkOuter, REFIID riid, void** ppvObj)
109 IHlink *hl = NULL;
110 HRESULT r = S_OK;
111 WCHAR *hash, *tgt;
112 const WCHAR *loc;
114 TRACE("%s %s %s %p %i %p %s %p\n", debugstr_w(pwzTarget),
115 debugstr_w(pwzLocation), debugstr_w(pwzFriendlyName), pihlsite,
116 dwSiteData, piunkOuter, debugstr_guid(riid), ppvObj);
118 r = CoCreateInstance(&CLSID_StdHlink, piunkOuter, CLSCTX_INPROC_SERVER, riid, (LPVOID*)&hl);
119 if (FAILED(r))
120 return r;
122 if (pwzTarget)
124 hash = strchrW(pwzTarget, '#');
125 if (hash)
127 if (hash == pwzTarget)
128 tgt = NULL;
129 else
131 int tgt_len = hash - pwzTarget;
132 tgt = heap_alloc((tgt_len + 1) * sizeof(WCHAR));
133 if (!tgt)
134 return E_OUTOFMEMORY;
135 memcpy(tgt, pwzTarget, tgt_len * sizeof(WCHAR));
136 tgt[tgt_len] = 0;
138 if (!pwzLocation)
139 loc = hash + 1;
140 else
141 loc = pwzLocation;
143 else
145 tgt = hlink_strdupW(pwzTarget);
146 if (!tgt)
147 return E_OUTOFMEMORY;
148 loc = pwzLocation;
151 else
153 tgt = NULL;
154 loc = pwzLocation;
157 IHlink_SetStringReference(hl, HLINKSETF_TARGET | HLINKSETF_LOCATION, tgt, loc);
159 heap_free(tgt);
161 if (pwzFriendlyName)
162 IHlink_SetFriendlyName(hl, pwzFriendlyName);
164 if (pihlsite)
165 IHlink_SetHlinkSite(hl, pihlsite, dwSiteData);
167 TRACE("Returning %i\n",r);
168 *ppvObj = hl;
170 return r;
174 /***********************************************************************
175 * HlinkCreateBrowseContext (HLINK.@)
177 HRESULT WINAPI HlinkCreateBrowseContext( IUnknown* piunkOuter, REFIID riid, void** ppvObj)
179 HRESULT r = S_OK;
181 TRACE("%p %s %p\n", piunkOuter, debugstr_guid(riid), ppvObj);
183 r = CoCreateInstance(&CLSID_StdHlinkBrowseContext, piunkOuter, CLSCTX_INPROC_SERVER, riid, ppvObj);
185 TRACE("returning %i\n",r);
187 return r;
190 /***********************************************************************
191 * HlinkNavigate (HLINK.@)
193 HRESULT WINAPI HlinkNavigate(IHlink *phl, IHlinkFrame *phlFrame,
194 DWORD grfHLNF, LPBC pbc, IBindStatusCallback *pbsc,
195 IHlinkBrowseContext *phlbc)
197 HRESULT r = S_OK;
199 TRACE("%p %p %i %p %p %p\n", phl, phlFrame, grfHLNF, pbc, pbsc, phlbc);
201 if (phlFrame)
202 r = IHlinkFrame_Navigate(phlFrame, grfHLNF, pbc, pbsc, phl);
203 else if (phl)
204 r = IHlink_Navigate(phl, grfHLNF, pbc, pbsc, phlbc);
206 return r;
209 /***********************************************************************
210 * HlinkOnNavigate (HLINK.@)
212 HRESULT WINAPI HlinkOnNavigate( IHlinkFrame *phlFrame,
213 IHlinkBrowseContext* phlbc, DWORD grfHLNF, IMoniker *pmkTarget,
214 LPCWSTR pwzLocation, LPCWSTR pwzFriendlyName, ULONG* puHLID)
216 HRESULT r = S_OK;
218 TRACE("%p %p %i %p %s %s %p\n",phlFrame, phlbc, grfHLNF, pmkTarget,
219 debugstr_w(pwzLocation), debugstr_w(pwzFriendlyName), puHLID);
221 r = IHlinkBrowseContext_OnNavigateHlink(phlbc, grfHLNF, pmkTarget,
222 pwzLocation, pwzFriendlyName, puHLID);
224 if (phlFrame)
225 r = IHlinkFrame_OnNavigate(phlFrame,grfHLNF,pmkTarget, pwzLocation,
226 pwzFriendlyName, 0);
228 return r;
231 /***********************************************************************
232 * HlinkCreateFromData (HLINK.@)
234 HRESULT WINAPI HlinkCreateFromData(IDataObject *piDataObj,
235 IHlinkSite *pihlsite, DWORD dwSiteData, IUnknown *piunkOuter,
236 REFIID riid, void **ppvObj)
238 FIXME("%p %p %d %p %p %p\n",
239 piDataObj, pihlsite, dwSiteData, piunkOuter, riid, ppvObj);
240 *ppvObj = NULL;
241 return E_NOTIMPL;
244 /***********************************************************************
245 * HlinkQueryCreateFromData (HLINK.@)
247 HRESULT WINAPI HlinkQueryCreateFromData(IDataObject* piDataObj)
249 FIXME("%p\n", piDataObj);
250 return E_NOTIMPL;
253 /***********************************************************************
254 * HlinkNavigateToStringReference (HLINK.@)
256 HRESULT WINAPI HlinkNavigateToStringReference( LPCWSTR pwzTarget,
257 LPCWSTR pwzLocation, IHlinkSite *pihlsite, DWORD dwSiteData,
258 IHlinkFrame *pihlframe, DWORD grfHLNF, LPBC pibc,
259 IBindStatusCallback *pibsc, IHlinkBrowseContext *pihlbc)
261 HRESULT r;
262 IHlink *hlink = NULL;
264 TRACE("%s %s %p %08x %p %08x %p %p %p\n",
265 debugstr_w(pwzTarget), debugstr_w(pwzLocation), pihlsite,
266 dwSiteData, pihlframe, grfHLNF, pibc, pibsc, pihlbc);
268 r = HlinkCreateFromString( pwzTarget, pwzLocation, NULL, pihlsite,
269 dwSiteData, NULL, &IID_IHlink, (LPVOID*) &hlink );
270 if (SUCCEEDED(r)) {
271 r = HlinkNavigate(hlink, pihlframe, grfHLNF, pibc, pibsc, pihlbc);
272 IHlink_Release(hlink);
275 return r;
278 /***********************************************************************
279 * HlinkIsShortcut (HLINK.@)
281 HRESULT WINAPI HlinkIsShortcut(LPCWSTR pwzFileName)
283 int len;
285 static const WCHAR url_ext[] = {'.','u','r','l',0};
287 TRACE("(%s)\n", debugstr_w(pwzFileName));
289 if(!pwzFileName)
290 return E_INVALIDARG;
292 len = strlenW(pwzFileName)-4;
293 if(len < 0)
294 return S_FALSE;
296 return strcmpiW(pwzFileName+len, url_ext) ? S_FALSE : S_OK;
299 /***********************************************************************
300 * HlinkGetSpecialReference (HLINK.@)
302 HRESULT WINAPI HlinkGetSpecialReference(ULONG uReference, LPWSTR *ppwzReference)
304 DWORD res, type, size = 100;
305 LPCWSTR value_name;
306 WCHAR *buf;
307 HKEY hkey;
309 static const WCHAR start_pageW[] = {'S','t','a','r','t',' ','P','a','g','e',0};
310 static const WCHAR search_pageW[] = {'S','e','a','r','c','h',' ','P','a','g','e',0};
312 static const WCHAR ie_main_keyW[] =
313 {'S','o','f','t','w','a','r','e',
314 '\\','M','i','c','r','o','s','o','f','t','\\',
315 'I','n','t','e','r','n','e','t',' ','E','x','p','l','o','r','e','r',
316 '\\','M','a','i','n',0};
318 TRACE("(%u %p)\n", uReference, ppwzReference);
320 *ppwzReference = NULL;
322 switch(uReference) {
323 case HLSR_HOME:
324 value_name = start_pageW;
325 break;
326 case HLSR_SEARCHPAGE:
327 value_name = search_pageW;
328 break;
329 case HLSR_HISTORYFOLDER:
330 return E_NOTIMPL;
331 default:
332 return E_INVALIDARG;
335 res = RegOpenKeyW(HKEY_CURRENT_USER, ie_main_keyW, &hkey);
336 if(res != ERROR_SUCCESS) {
337 WARN("Could not open key: %u\n", res);
338 return HRESULT_FROM_WIN32(res);
341 buf = CoTaskMemAlloc(size);
342 res = RegQueryValueExW(hkey, value_name, NULL, &type, (PBYTE)buf, &size);
343 buf = CoTaskMemRealloc(buf, size);
344 if(res == ERROR_MORE_DATA)
345 res = RegQueryValueExW(hkey, value_name, NULL, &type, (PBYTE)buf, &size);
346 RegCloseKey(hkey);
347 if(res != ERROR_SUCCESS) {
348 WARN("Could not query value %s: %u\n", debugstr_w(value_name), res);
349 CoTaskMemFree(buf);
350 return HRESULT_FROM_WIN32(res);
353 *ppwzReference = buf;
354 return S_OK;
357 /***********************************************************************
358 * HlinkTranslateURL (HLINK.@)
360 HRESULT WINAPI HlinkTranslateURL(LPCWSTR pwzURL, DWORD grfFlags, LPWSTR *ppwzTranslatedURL)
362 FIXME("(%s %08x %p)\n", debugstr_w(pwzURL), grfFlags, ppwzTranslatedURL);
363 return E_NOTIMPL;
366 /***********************************************************************
367 * HlinkUpdateStackItem (HLINK.@)
369 HRESULT WINAPI HlinkUpdateStackItem(IHlinkFrame *pihlframe, IHlinkBrowseContext *pihlbc,
370 ULONG uHLID, IMoniker *pimkTrgt, LPCWSTR pwzLocation, LPCWSTR pwzFriendlyName)
372 FIXME("(%p %p %u %p %s %s)\n", pihlframe, pihlbc, uHLID, pimkTrgt, debugstr_w(pwzLocation),
373 debugstr_w(pwzFriendlyName));
374 return E_NOTIMPL;
377 /***********************************************************************
378 * HlinkParseDisplayName (HLINK.@)
380 HRESULT WINAPI HlinkParseDisplayName(LPBC pibc, LPCWSTR pwzDisplayName, BOOL fNoForceAbs,
381 ULONG *pcchEaten, IMoniker **ppimk)
383 HRESULT hres;
385 TRACE("(%p %s %x %p %p)\n", pibc, debugstr_w(pwzDisplayName), fNoForceAbs, pcchEaten, ppimk);
387 if(fNoForceAbs)
388 FIXME("Unsupported fNoForceAbs\n");
390 hres = MkParseDisplayNameEx(pibc, pwzDisplayName, pcchEaten, ppimk);
391 if(SUCCEEDED(hres))
392 return hres;
394 hres = MkParseDisplayName(pibc, pwzDisplayName, pcchEaten, ppimk);
395 if(SUCCEEDED(hres))
396 return hres;
398 hres = CreateFileMoniker(pwzDisplayName, ppimk);
399 if(SUCCEEDED(hres))
400 *pcchEaten = strlenW(pwzDisplayName);
402 return hres;
405 /***********************************************************************
406 * HlinkResolveMonikerForData (HLINK.@)
408 HRESULT WINAPI HlinkResolveMonikerForData(LPMONIKER pimkReference, DWORD reserved, LPBC pibc,
409 ULONG cFmtetc, FORMATETC *rgFmtetc, IBindStatusCallback *pibsc, LPMONIKER pimkBase)
411 LPOLESTR name = NULL;
412 IBindCtx *bctx;
413 DWORD mksys = 0;
414 void *obj = NULL;
415 HRESULT hres;
417 TRACE("(%p %x %p %d %p %p %p)\n", pimkReference, reserved, pibc, cFmtetc, rgFmtetc, pibsc, pimkBase);
419 if(cFmtetc || rgFmtetc || pimkBase)
420 FIXME("Unsupported args\n");
422 hres = RegisterBindStatusCallback(pibc, pibsc, NULL /* FIXME */, 0);
423 if(FAILED(hres))
424 return hres;
426 hres = IMoniker_IsSystemMoniker(pimkReference, &mksys);
427 if(SUCCEEDED(hres) && mksys != MKSYS_URLMONIKER)
428 WARN("sysmk = %x\n", mksys);
430 /* FIXME: What is it for? */
431 CreateBindCtx(0, &bctx);
432 hres = IMoniker_GetDisplayName(pimkReference, bctx, NULL, &name);
433 IBindCtx_Release(bctx);
434 if(SUCCEEDED(hres)) {
435 TRACE("got display name %s\n", debugstr_w(name));
436 CoTaskMemFree(name);
439 return IMoniker_BindToStorage(pimkReference, pibc, NULL, &IID_IUnknown, &obj);
442 /***********************************************************************
443 * HlinkClone (HLINK.@)
445 HRESULT WINAPI HlinkClone(IHlink *hlink, REFIID riid, IHlinkSite *hls,
446 DWORD site_data, void **obj)
448 IMoniker *mk, *clone_mk = NULL;
449 WCHAR *loc, *name = NULL;
450 HRESULT hres;
452 if(!hlink || !riid || !obj)
453 return E_INVALIDARG;
455 *obj = NULL;
457 hres = IHlink_GetMonikerReference(hlink, HLINKGETREF_DEFAULT, &mk, &loc);
458 if(FAILED(hres))
459 return hres;
461 if(mk) {
462 IStream *strm;
463 LARGE_INTEGER lgint;
465 hres = CreateStreamOnHGlobal(NULL, TRUE, &strm);
466 if(FAILED(hres)) {
467 IMoniker_Release(mk);
468 goto cleanup;
471 hres = OleSaveToStream((IPersistStream*)mk, strm);
472 if(FAILED(hres)) {
473 IStream_Release(strm);
474 IMoniker_Release(mk);
475 goto cleanup;
477 IMoniker_Release(mk);
479 lgint.QuadPart = 0;
480 hres = IStream_Seek(strm, lgint, STREAM_SEEK_SET, NULL);
481 if(FAILED(hres)) {
482 IStream_Release(strm);
483 goto cleanup;
486 hres = OleLoadFromStream(strm, &IID_IMoniker, (void**)&clone_mk);
487 IStream_Release(strm);
488 if(FAILED(hres))
489 goto cleanup;
492 hres = IHlink_GetFriendlyName(hlink, HLFNAMEF_DEFAULT, &name);
493 if(FAILED(hres))
494 goto cleanup;
496 hres = HlinkCreateFromMoniker(clone_mk, loc, name, hls, site_data, NULL,
497 &IID_IHlink, obj);
499 cleanup:
500 if(clone_mk)
501 IMoniker_Release(clone_mk);
502 CoTaskMemFree(loc);
503 CoTaskMemFree(name);
504 return hres;
507 static HRESULT WINAPI HLinkCF_fnQueryInterface ( LPCLASSFACTORY iface,
508 REFIID riid, LPVOID *ppvObj)
510 CFImpl *This = impl_from_IClassFactory(iface);
512 TRACE("(%p)->(%s)\n",This,debugstr_guid(riid));
514 *ppvObj = NULL;
516 if (IsEqualIID(riid, &IID_IUnknown) ||
517 IsEqualIID(riid, &IID_IClassFactory))
519 *ppvObj = This;
520 return S_OK;
523 TRACE("-- E_NOINTERFACE\n");
524 return E_NOINTERFACE;
527 static ULONG WINAPI HLinkCF_fnAddRef (LPCLASSFACTORY iface)
529 return 2;
532 static ULONG WINAPI HLinkCF_fnRelease(LPCLASSFACTORY iface)
534 return 1;
537 static HRESULT WINAPI HLinkCF_fnCreateInstance( LPCLASSFACTORY iface,
538 LPUNKNOWN pUnkOuter, REFIID riid, LPVOID *ppvObject)
540 CFImpl *This = impl_from_IClassFactory(iface);
542 TRACE("%p->(%p,%s,%p)\n", This, pUnkOuter, debugstr_guid(riid), ppvObject);
544 *ppvObject = NULL;
546 return This->lpfnCI(pUnkOuter, riid, ppvObject);
549 static HRESULT WINAPI HLinkCF_fnLockServer(LPCLASSFACTORY iface, BOOL fLock)
551 FIXME("%p %d\n", iface, fLock);
552 return E_NOTIMPL;
555 static const IClassFactoryVtbl hlcfvt =
557 HLinkCF_fnQueryInterface,
558 HLinkCF_fnAddRef,
559 HLinkCF_fnRelease,
560 HLinkCF_fnCreateInstance,
561 HLinkCF_fnLockServer
564 static CFImpl HLink_cf = { { &hlcfvt }, HLink_Constructor };
565 static CFImpl HLinkBrowseContext_cf = { { &hlcfvt }, HLinkBrowseContext_Constructor };
567 /***********************************************************************
568 * DllGetClassObject (HLINK.@)
570 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
572 IClassFactory *pcf = NULL;
574 TRACE("%s %s %p\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
576 if (!ppv)
577 return E_INVALIDARG;
578 *ppv = NULL;
580 if (IsEqualIID(rclsid, &CLSID_StdHlink))
581 pcf = &HLink_cf.IClassFactory_iface;
582 else if (IsEqualIID(rclsid, &CLSID_StdHlinkBrowseContext))
583 pcf = &HLinkBrowseContext_cf.IClassFactory_iface;
584 else
585 return CLASS_E_CLASSNOTAVAILABLE;
587 return IClassFactory_QueryInterface(pcf, iid, ppv);
590 /***********************************************************************
591 * DllRegisterServer (HLINK.@)
593 HRESULT WINAPI DllRegisterServer(void)
595 return __wine_register_resources( instance );
598 /***********************************************************************
599 * DllUnregisterServer (HLINK.@)
601 HRESULT WINAPI DllUnregisterServer(void)
603 return __wine_unregister_resources( instance );