dlls/hlink/browse_ctx.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 "wine/debug.h"
  24 #include "wine/list.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(hlink);
  27
  28 struct link_entry
  29 {
  30     struct list entry;
  31     IHlink *link;
  32 };
  33
  34 typedef struct
  35 {
  36     IHlinkBrowseContext IHlinkBrowseContext_iface;
  37     LONG        ref;
  38     HLBWINFO*   BrowseWindowInfo;
  39     struct link_entry *current;
  40     struct list links;
  41 } HlinkBCImpl;
  42
  43 static inline HlinkBCImpl *impl_from_IHlinkBrowseContext(IHlinkBrowseContext *iface)
  44 {
  45     return CONTAINING_RECORD(iface, HlinkBCImpl, IHlinkBrowseContext_iface);
  46 }
  47
  48 static HRESULT WINAPI IHlinkBC_fnQueryInterface( IHlinkBrowseContext *iface,
  49         REFIID riid, LPVOID* ppvObj)
  50 {
  51     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
  52     TRACE ("(%p)->(%s,%p)\n", This, debugstr_guid (riid), ppvObj);
  53
  54     if (IsEqualIID(riid, &IID_IUnknown) ||
  55         IsEqualIID(riid, &IID_IHlinkBrowseContext))
  56         *ppvObj = This;
  57
  58     if (*ppvObj)
  59     {
  60         IUnknown_AddRef((IUnknown*)(*ppvObj));
  61         return S_OK;
  62     }
  63     return E_NOINTERFACE;
  64 }
  65
  66 static ULONG WINAPI IHlinkBC_fnAddRef (IHlinkBrowseContext* iface)
  67 {
  68     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
  69     ULONG refCount = InterlockedIncrement(&This->ref);
  70
  71     TRACE("(%p)->(count=%u)\n", This, refCount - 1);
  72
  73     return refCount;
  74 }
  75
  76 static ULONG WINAPI IHlinkBC_fnRelease (IHlinkBrowseContext* iface)
  77 {
  78     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
  79     ULONG ref = InterlockedDecrement(&This->ref);
  80
  81     TRACE("(%p)->(count=%u)\n", This, ref + 1);
  82
  83     if (!ref)
  84     {
  85         struct link_entry *link, *link2;
  86
  87         LIST_FOR_EACH_ENTRY_SAFE(link, link2, &This->links, struct link_entry, entry)
  88         {
  89             list_remove(&link->entry);
  90             IHlink_Release(link->link);
  91             heap_free(link);
  92         }
  93
  94         heap_free(This->BrowseWindowInfo);
  95         heap_free(This);
  96     }
  97
  98     return ref;
  99 }
 100
 101 static HRESULT WINAPI IHlinkBC_Register(IHlinkBrowseContext* iface,
 102         DWORD dwReserved, IUnknown *piunk, IMoniker *pimk, DWORD *pdwRegister)
 103 {
 104     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 105     IMoniker *mon;
 106     IMoniker *composite;
 107     IRunningObjectTable *ROT;
 108     HRESULT hr;
 109
 110     FIXME("(%p)->(%i %p %p %p)\n", This, dwReserved, piunk, pimk, pdwRegister);
 111
 112     hr = CreateItemMoniker(NULL, L"WINEHLINK", &mon);
 113     if (FAILED(hr))
 114         return hr;
 115     CreateGenericComposite(mon, pimk, &composite);
 116
 117     GetRunningObjectTable(0, &ROT);
 118     IRunningObjectTable_Register(ROT, 0, piunk, composite, pdwRegister);
 119
 120     IRunningObjectTable_Release(ROT);
 121     IMoniker_Release(composite);
 122     IMoniker_Release(mon);
 123
 124     return S_OK;
 125 }
 126
 127 static HRESULT WINAPI IHlinkBC_GetObject(IHlinkBrowseContext* iface,
 128         IMoniker *pimk, BOOL fBindifRootRegistered, IUnknown **ppiunk)
 129 {
 130     HlinkBCImpl *This = impl_from_IHlinkBrowseContext(iface);
 131     IMoniker *mon;
 132     IMoniker *composite;
 133     IRunningObjectTable *ROT;
 134     HRESULT hr;
 135
 136     TRACE("(%p)->(%p, %d, %p)\n", This, pimk, fBindifRootRegistered, ppiunk);
 137
 138     hr = CreateItemMoniker(NULL, L"WINEHLINK", &mon);
 139     if (FAILED(hr)) return hr;
 140     CreateGenericComposite(mon, pimk, &composite);
 141
 142     GetRunningObjectTable(0, &ROT);
 143     hr = IRunningObjectTable_GetObject(ROT, composite, ppiunk);
 144
 145     IRunningObjectTable_Release(ROT);
 146     IMoniker_Release(composite);
 147     IMoniker_Release(mon);
 148
 149     return hr;
 150 }
 151
 152 static HRESULT WINAPI IHlinkBC_Revoke(IHlinkBrowseContext* iface,
 153         DWORD dwRegister)
 154 {
 155     HRESULT r;
 156     IRunningObjectTable *ROT;
 157     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 158
 159     FIXME("(%p)->(%i)\n", This, dwRegister);
 160
 161     GetRunningObjectTable(0, &ROT);
 162     r = IRunningObjectTable_Revoke(ROT, dwRegister);
 163     IRunningObjectTable_Release(ROT);
 164
 165     return r;
 166 }
 167
 168 static HRESULT WINAPI IHlinkBC_SetBrowseWindowInfo(IHlinkBrowseContext* iface,
 169         HLBWINFO *phlbwi)
 170 {
 171     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 172     TRACE("(%p)->(%p)\n", This, phlbwi);
 173
 174     if(!phlbwi)
 175         return E_INVALIDARG;
 176
 177     heap_free(This->BrowseWindowInfo);
 178     This->BrowseWindowInfo = heap_alloc(phlbwi->cbSize);
 179     memcpy(This->BrowseWindowInfo, phlbwi, phlbwi->cbSize);
 180
 181     return S_OK;
 182 }
 183
 184 static HRESULT WINAPI IHlinkBC_GetBrowseWindowInfo(IHlinkBrowseContext* iface,
 185         HLBWINFO *phlbwi)
 186 {
 187     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 188     TRACE("(%p)->(%p)\n", This, phlbwi);
 189
 190     if(!phlbwi)
 191         return E_INVALIDARG;
 192
 193     if(!This->BrowseWindowInfo)
 194         phlbwi->cbSize = 0;
 195     else
 196         memcpy(phlbwi, This->BrowseWindowInfo, This->BrowseWindowInfo->cbSize);
 197
 198     return S_OK;
 199 }
 200
 201 static HRESULT WINAPI IHlinkBC_SetInitialHlink(IHlinkBrowseContext* iface,
 202         IMoniker *pimkTarget, LPCWSTR pwzLocation, LPCWSTR pwzFriendlyName)
 203 {
 204     HlinkBCImpl *This = impl_from_IHlinkBrowseContext(iface);
 205     struct link_entry *link;
 206
 207     TRACE("(%p)->(%p %s %s)\n", This, pimkTarget, debugstr_w(pwzLocation), debugstr_w(pwzFriendlyName));
 208
 209     if (!list_empty(&This->links))
 210         return CO_E_ALREADYINITIALIZED;
 211
 212     link = heap_alloc(sizeof(struct link_entry));
 213     if (!link) return E_OUTOFMEMORY;
 214
 215     HlinkCreateFromMoniker(pimkTarget, pwzLocation, pwzFriendlyName, NULL,
 216             0, NULL, &IID_IHlink, (void**)&link->link);
 217
 218     list_add_head(&This->links, &link->entry);
 219     This->current = LIST_ENTRY(list_head(&This->links), struct link_entry, entry);
 220     return S_OK;
 221 }
 222
 223 static HRESULT WINAPI IHlinkBC_OnNavigateHlink(IHlinkBrowseContext *iface,
 224         DWORD grfHLNF, IMoniker* pmkTarget, LPCWSTR pwzLocation, LPCWSTR
 225         pwzFriendlyName, ULONG *puHLID)
 226 {
 227     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 228
 229     FIXME("(%p)->(%i %p %s %s %p)\n", This, grfHLNF, pmkTarget,
 230             debugstr_w(pwzLocation), debugstr_w(pwzFriendlyName), puHLID);
 231
 232     return S_OK;
 233 }
 234
 235 static struct link_entry *context_get_entry(HlinkBCImpl *ctxt, ULONG hlid)
 236 {
 237     struct list *entry;
 238
 239     switch (hlid)
 240     {
 241     case HLID_PREVIOUS:
 242         entry = list_prev(&ctxt->links, &ctxt->current->entry);
 243         break;
 244     case HLID_NEXT:
 245         entry = list_next(&ctxt->links, &ctxt->current->entry);
 246         break;
 247     case HLID_CURRENT:
 248         entry = &ctxt->current->entry;
 249         break;
 250     case HLID_STACKBOTTOM:
 251         entry = list_tail(&ctxt->links);
 252         break;
 253     case HLID_STACKTOP:
 254         entry = list_head(&ctxt->links);
 255         break;
 256     default:
 257         WARN("unknown id 0x%x\n", hlid);
 258         entry = NULL;
 259     }
 260
 261     return entry ? LIST_ENTRY(entry, struct link_entry, entry) : NULL;
 262 }
 263
 264 static HRESULT WINAPI IHlinkBC_UpdateHlink(IHlinkBrowseContext* iface,
 265         ULONG hlid, IMoniker *target, LPCWSTR location, LPCWSTR friendly_name)
 266 {
 267     HlinkBCImpl *This = impl_from_IHlinkBrowseContext(iface);
 268     struct link_entry *entry = context_get_entry(This, hlid);
 269     IHlink *link;
 270     HRESULT hr;
 271
 272     TRACE("(%p)->(0x%x %p %s %s)\n", This, hlid, target, debugstr_w(location), debugstr_w(friendly_name));
 273
 274     if (!entry)
 275         return E_INVALIDARG;
 276
 277     hr = HlinkCreateFromMoniker(target, location, friendly_name, NULL, 0, NULL, &IID_IHlink, (void**)&link);
 278     if (FAILED(hr))
 279         return hr;
 280
 281     IHlink_Release(entry->link);
 282     entry->link = link;
 283
 284     return S_OK;
 285 }
 286
 287 static HRESULT WINAPI IHlinkBC_EnumNavigationStack( IHlinkBrowseContext *iface,
 288         DWORD dwReserved, DWORD grfHLFNAMEF, IEnumHLITEM** ppienumhlitem)
 289 {
 290     FIXME("\n");
 291     return E_NOTIMPL;
 292 }
 293
 294 static HRESULT WINAPI IHlinkBC_QueryHlink( IHlinkBrowseContext* iface,
 295         DWORD grfHLONG, ULONG uHLID)
 296 {
 297     FIXME("\n");
 298     return E_NOTIMPL;
 299 }
 300
 301 static HRESULT WINAPI IHlinkBC_GetHlink(IHlinkBrowseContext* iface, ULONG hlid, IHlink **ret)
 302 {
 303     HlinkBCImpl *This = impl_from_IHlinkBrowseContext(iface);
 304     struct link_entry *link;
 305
 306     TRACE("(%p)->(0x%x %p)\n", This, hlid, ret);
 307
 308     link = context_get_entry(This, hlid);
 309     if (!link)
 310         return E_FAIL;
 311
 312     *ret = link->link;
 313     IHlink_AddRef(*ret);
 314
 315     return S_OK;
 316 }
 317
 318 static HRESULT WINAPI IHlinkBC_SetCurrentHlink(IHlinkBrowseContext* iface, ULONG hlid)
 319 {
 320     HlinkBCImpl *This = impl_from_IHlinkBrowseContext(iface);
 321     struct link_entry *link;
 322
 323     TRACE("(%p)->(0x%08x)\n", This, hlid);
 324
 325     link = context_get_entry(This, hlid);
 326     if (!link)
 327         return E_FAIL;
 328
 329     This->current = link;
 330     return S_OK;
 331 }
 332
 333 static HRESULT WINAPI IHlinkBC_Clone( IHlinkBrowseContext* iface,
 334         IUnknown* piunkOuter, REFIID riid, IUnknown** ppiunkOjb)
 335 {
 336     FIXME("\n");
 337     return E_NOTIMPL;
 338 }
 339
 340 static HRESULT WINAPI IHlinkBC_Close(IHlinkBrowseContext* iface,
 341         DWORD reserved)
 342 {
 343     FIXME("\n");
 344     return E_NOTIMPL;
 345 }
 346
 347 static const IHlinkBrowseContextVtbl hlvt =
 348 {
 349     IHlinkBC_fnQueryInterface,
 350     IHlinkBC_fnAddRef,
 351     IHlinkBC_fnRelease,
 352     IHlinkBC_Register,
 353     IHlinkBC_GetObject,
 354     IHlinkBC_Revoke,
 355     IHlinkBC_SetBrowseWindowInfo,
 356     IHlinkBC_GetBrowseWindowInfo,
 357     IHlinkBC_SetInitialHlink,
 358     IHlinkBC_OnNavigateHlink,
 359     IHlinkBC_UpdateHlink,
 360     IHlinkBC_EnumNavigationStack,
 361     IHlinkBC_QueryHlink,
 362     IHlinkBC_GetHlink,
 363     IHlinkBC_SetCurrentHlink,
 364     IHlinkBC_Clone,
 365     IHlinkBC_Close
 366 };
 367
 368 HRESULT HLinkBrowseContext_Constructor(IUnknown *pUnkOuter, REFIID riid, void **ppv)
 369 {
 370     HlinkBCImpl * hl;
 371
 372     TRACE("unkOut=%p riid=%s\n", pUnkOuter, debugstr_guid(riid));
 373     *ppv = NULL;
 374
 375     if (pUnkOuter)
 376         return CLASS_E_NOAGGREGATION;
 377
 378     hl = heap_alloc_zero(sizeof(HlinkBCImpl));
 379     if (!hl)
 380         return E_OUTOFMEMORY;
 381
 382     hl->ref = 1;
 383     hl->IHlinkBrowseContext_iface.lpVtbl = &hlvt;
 384     list_init(&hl->links);
 385     hl->current = NULL;
 386
 387     *ppv = hl;
 388     return S_OK;
 389 }