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     static const WCHAR szIdent[] = {'W','I','N','E','H','L','I','N','K',0};
 105     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 106     IMoniker *mon;
 107     IMoniker *composite;
 108     IRunningObjectTable *ROT;
 109     HRESULT hr;
 110
 111     FIXME("(%p)->(%i %p %p %p)\n", This, dwReserved, piunk, pimk, pdwRegister);
 112
 113     hr = CreateItemMoniker(NULL, szIdent, &mon);
 114     if (FAILED(hr))
 115         return hr;
 116     CreateGenericComposite(mon, pimk, &composite);
 117
 118     GetRunningObjectTable(0, &ROT);
 119     IRunningObjectTable_Register(ROT, 0, piunk, composite, pdwRegister);
 120
 121     IRunningObjectTable_Release(ROT);
 122     IMoniker_Release(composite);
 123     IMoniker_Release(mon);
 124
 125     return S_OK;
 126 }
 127
 128 static HRESULT WINAPI IHlinkBC_GetObject(IHlinkBrowseContext* face,
 129         IMoniker *pimk, BOOL fBindifRootRegistered, IUnknown **ppiunk)
 130 {
 131     FIXME("\n");
 132     return E_NOTIMPL;
 133 }
 134
 135 static HRESULT WINAPI IHlinkBC_Revoke(IHlinkBrowseContext* iface,
 136         DWORD dwRegister)
 137 {
 138     HRESULT r;
 139     IRunningObjectTable *ROT;
 140     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 141
 142     FIXME("(%p)->(%i)\n", This, dwRegister);
 143
 144     GetRunningObjectTable(0, &ROT);
 145     r = IRunningObjectTable_Revoke(ROT, dwRegister);
 146     IRunningObjectTable_Release(ROT);
 147
 148     return r;
 149 }
 150
 151 static HRESULT WINAPI IHlinkBC_SetBrowseWindowInfo(IHlinkBrowseContext* iface,
 152         HLBWINFO *phlbwi)
 153 {
 154     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 155     TRACE("(%p)->(%p)\n", This, phlbwi);
 156
 157     if(!phlbwi)
 158         return E_INVALIDARG;
 159
 160     heap_free(This->BrowseWindowInfo);
 161     This->BrowseWindowInfo = heap_alloc(phlbwi->cbSize);
 162     memcpy(This->BrowseWindowInfo, phlbwi, phlbwi->cbSize);
 163
 164     return S_OK;
 165 }
 166
 167 static HRESULT WINAPI IHlinkBC_GetBrowseWindowInfo(IHlinkBrowseContext* iface,
 168         HLBWINFO *phlbwi)
 169 {
 170     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 171     TRACE("(%p)->(%p)\n", This, phlbwi);
 172
 173     if(!phlbwi)
 174         return E_INVALIDARG;
 175
 176     if(!This->BrowseWindowInfo)
 177         phlbwi->cbSize = 0;
 178     else
 179         memcpy(phlbwi, This->BrowseWindowInfo, This->BrowseWindowInfo->cbSize);
 180
 181     return S_OK;
 182 }
 183
 184 static HRESULT WINAPI IHlinkBC_SetInitialHlink(IHlinkBrowseContext* iface,
 185         IMoniker *pimkTarget, LPCWSTR pwzLocation, LPCWSTR pwzFriendlyName)
 186 {
 187     HlinkBCImpl *This = impl_from_IHlinkBrowseContext(iface);
 188     struct link_entry *link;
 189
 190     TRACE("(%p)->(%p %s %s)\n", This, pimkTarget, debugstr_w(pwzLocation), debugstr_w(pwzFriendlyName));
 191
 192     if (!list_empty(&This->links))
 193         return CO_E_ALREADYINITIALIZED;
 194
 195     link = heap_alloc(sizeof(struct link_entry));
 196     if (!link) return E_OUTOFMEMORY;
 197
 198     HlinkCreateFromMoniker(pimkTarget, pwzLocation, pwzFriendlyName, NULL,
 199             0, NULL, &IID_IHlink, (void**)&link->link);
 200
 201     list_add_head(&This->links, &link->entry);
 202     This->current = LIST_ENTRY(list_head(&This->links), struct link_entry, entry);
 203     return S_OK;
 204 }
 205
 206 static HRESULT WINAPI IHlinkBC_OnNavigateHlink(IHlinkBrowseContext *iface,
 207         DWORD grfHLNF, IMoniker* pmkTarget, LPCWSTR pwzLocation, LPCWSTR
 208         pwzFriendlyName, ULONG *puHLID)
 209 {
 210     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 211
 212     FIXME("(%p)->(%i %p %s %s %p)\n", This, grfHLNF, pmkTarget,
 213             debugstr_w(pwzLocation), debugstr_w(pwzFriendlyName), puHLID);
 214
 215     return S_OK;
 216 }
 217
 218 static struct link_entry *context_get_entry(HlinkBCImpl *ctxt, ULONG hlid)
 219 {
 220     struct list *entry;
 221
 222     switch (hlid)
 223     {
 224     case HLID_PREVIOUS:
 225         entry = list_prev(&ctxt->links, &ctxt->current->entry);
 226         break;
 227     case HLID_NEXT:
 228         entry = list_next(&ctxt->links, &ctxt->current->entry);
 229         break;
 230     case HLID_CURRENT:
 231         entry = &ctxt->current->entry;
 232         break;
 233     case HLID_STACKBOTTOM:
 234         entry = list_tail(&ctxt->links);
 235         break;
 236     case HLID_STACKTOP:
 237         entry = list_head(&ctxt->links);
 238         break;
 239     default:
 240         WARN("unknown id 0x%x\n", hlid);
 241         entry = NULL;
 242     }
 243
 244     return entry ? LIST_ENTRY(entry, struct link_entry, entry) : NULL;
 245 }
 246
 247 static HRESULT WINAPI IHlinkBC_UpdateHlink(IHlinkBrowseContext* iface,
 248         ULONG hlid, IMoniker *target, LPCWSTR location, LPCWSTR friendly_name)
 249 {
 250     HlinkBCImpl *This = impl_from_IHlinkBrowseContext(iface);
 251     struct link_entry *entry = context_get_entry(This, hlid);
 252     IHlink *link;
 253     HRESULT hr;
 254
 255     TRACE("(%p)->(0x%x %p %s %s)\n", This, hlid, target, debugstr_w(location), debugstr_w(friendly_name));
 256
 257     if (!entry)
 258         return E_INVALIDARG;
 259
 260     hr = HlinkCreateFromMoniker(target, location, friendly_name, NULL, 0, NULL, &IID_IHlink, (void**)&link);
 261     if (FAILED(hr))
 262         return hr;
 263
 264     IHlink_Release(entry->link);
 265     entry->link = link;
 266
 267     return S_OK;
 268 }
 269
 270 static HRESULT WINAPI IHlinkBC_EnumNavigationStack( IHlinkBrowseContext *iface,
 271         DWORD dwReserved, DWORD grfHLFNAMEF, IEnumHLITEM** ppienumhlitem)
 272 {
 273     FIXME("\n");
 274     return E_NOTIMPL;
 275 }
 276
 277 static HRESULT WINAPI IHlinkBC_QueryHlink( IHlinkBrowseContext* iface,
 278         DWORD grfHLONG, ULONG uHLID)
 279 {
 280     FIXME("\n");
 281     return E_NOTIMPL;
 282 }
 283
 284 static HRESULT WINAPI IHlinkBC_GetHlink(IHlinkBrowseContext* iface, ULONG hlid, IHlink **ret)
 285 {
 286     HlinkBCImpl *This = impl_from_IHlinkBrowseContext(iface);
 287     struct link_entry *link;
 288
 289     TRACE("(%p)->(0x%x %p)\n", This, hlid, ret);
 290
 291     link = context_get_entry(This, hlid);
 292     if (!link)
 293         return E_FAIL;
 294
 295     *ret = link->link;
 296     IHlink_AddRef(*ret);
 297
 298     return S_OK;
 299 }
 300
 301 static HRESULT WINAPI IHlinkBC_SetCurrentHlink(IHlinkBrowseContext* iface, ULONG hlid)
 302 {
 303     HlinkBCImpl *This = impl_from_IHlinkBrowseContext(iface);
 304     struct link_entry *link;
 305
 306     TRACE("(%p)->(0x%08x)\n", This, hlid);
 307
 308     link = context_get_entry(This, hlid);
 309     if (!link)
 310         return E_FAIL;
 311
 312     This->current = link;
 313     return S_OK;
 314 }
 315
 316 static HRESULT WINAPI IHlinkBC_Clone( IHlinkBrowseContext* iface,
 317         IUnknown* piunkOuter, REFIID riid, IUnknown** ppiunkOjb)
 318 {
 319     FIXME("\n");
 320     return E_NOTIMPL;
 321 }
 322
 323 static HRESULT WINAPI IHlinkBC_Close(IHlinkBrowseContext* iface,
 324         DWORD reserved)
 325 {
 326     FIXME("\n");
 327     return E_NOTIMPL;
 328 }
 329
 330 static const IHlinkBrowseContextVtbl hlvt =
 331 {
 332     IHlinkBC_fnQueryInterface,
 333     IHlinkBC_fnAddRef,
 334     IHlinkBC_fnRelease,
 335     IHlinkBC_Register,
 336     IHlinkBC_GetObject,
 337     IHlinkBC_Revoke,
 338     IHlinkBC_SetBrowseWindowInfo,
 339     IHlinkBC_GetBrowseWindowInfo,
 340     IHlinkBC_SetInitialHlink,
 341     IHlinkBC_OnNavigateHlink,
 342     IHlinkBC_UpdateHlink,
 343     IHlinkBC_EnumNavigationStack,
 344     IHlinkBC_QueryHlink,
 345     IHlinkBC_GetHlink,
 346     IHlinkBC_SetCurrentHlink,
 347     IHlinkBC_Clone,
 348     IHlinkBC_Close
 349 };
 350
 351 HRESULT HLinkBrowseContext_Constructor(IUnknown *pUnkOuter, REFIID riid, void **ppv)
 352 {
 353     HlinkBCImpl * hl;
 354
 355     TRACE("unkOut=%p riid=%s\n", pUnkOuter, debugstr_guid(riid));
 356     *ppv = NULL;
 357
 358     if (pUnkOuter)
 359         return CLASS_E_NOAGGREGATION;
 360
 361     hl = heap_alloc_zero(sizeof(HlinkBCImpl));
 362     if (!hl)
 363         return E_OUTOFMEMORY;
 364
 365     hl->ref = 1;
 366     hl->IHlinkBrowseContext_iface.lpVtbl = &hlvt;
 367     list_init(&hl->links);
 368     hl->current = NULL;
 369
 370     *ppv = hl;
 371     return S_OK;
 372 }