reactos/dll/win32/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
 110     FIXME("(%p)->(%i %p %p %p)\n", This, dwReserved, piunk, pimk, pdwRegister);
 111
 112     CreateItemMoniker(NULL, szIdent, &mon);
 113     CreateGenericComposite(mon, pimk, &composite);
 114
 115     GetRunningObjectTable(0, &ROT);
 116     IRunningObjectTable_Register(ROT, 0, piunk, composite, pdwRegister);
 117
 118     IRunningObjectTable_Release(ROT);
 119     IMoniker_Release(composite);
 120     IMoniker_Release(mon);
 121
 122     return S_OK;
 123 }
 124
 125 static HRESULT WINAPI IHlinkBC_GetObject(IHlinkBrowseContext* face,
 126         IMoniker *pimk, BOOL fBindifRootRegistered, IUnknown **ppiunk)
 127 {
 128     FIXME("\n");
 129     return E_NOTIMPL;
 130 }
 131
 132 static HRESULT WINAPI IHlinkBC_Revoke(IHlinkBrowseContext* iface,
 133         DWORD dwRegister)
 134 {
 135     HRESULT r;
 136     IRunningObjectTable *ROT;
 137     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 138
 139     FIXME("(%p)->(%i)\n", This, dwRegister);
 140
 141     GetRunningObjectTable(0, &ROT);
 142     r = IRunningObjectTable_Revoke(ROT, dwRegister);
 143     IRunningObjectTable_Release(ROT);
 144
 145     return r;
 146 }
 147
 148 static HRESULT WINAPI IHlinkBC_SetBrowseWindowInfo(IHlinkBrowseContext* iface,
 149         HLBWINFO *phlbwi)
 150 {
 151     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 152     TRACE("(%p)->(%p)\n", This, phlbwi);
 153
 154     if(!phlbwi)
 155         return E_INVALIDARG;
 156
 157     heap_free(This->BrowseWindowInfo);
 158     This->BrowseWindowInfo = heap_alloc(phlbwi->cbSize);
 159     memcpy(This->BrowseWindowInfo, phlbwi, phlbwi->cbSize);
 160
 161     return S_OK;
 162 }
 163
 164 static HRESULT WINAPI IHlinkBC_GetBrowseWindowInfo(IHlinkBrowseContext* iface,
 165         HLBWINFO *phlbwi)
 166 {
 167     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 168     TRACE("(%p)->(%p)\n", This, phlbwi);
 169
 170     if(!phlbwi)
 171         return E_INVALIDARG;
 172
 173     if(!This->BrowseWindowInfo)
 174         phlbwi->cbSize = 0;
 175     else
 176         memcpy(phlbwi, This->BrowseWindowInfo, This->BrowseWindowInfo->cbSize);
 177
 178     return S_OK;
 179 }
 180
 181 static HRESULT WINAPI IHlinkBC_SetInitialHlink(IHlinkBrowseContext* iface,
 182         IMoniker *pimkTarget, LPCWSTR pwzLocation, LPCWSTR pwzFriendlyName)
 183 {
 184     HlinkBCImpl *This = impl_from_IHlinkBrowseContext(iface);
 185     struct link_entry *link;
 186
 187     TRACE("(%p)->(%p %s %s)\n", This, pimkTarget, debugstr_w(pwzLocation), debugstr_w(pwzFriendlyName));
 188
 189     if (!list_empty(&This->links))
 190         return CO_E_ALREADYINITIALIZED;
 191
 192     link = heap_alloc(sizeof(struct link_entry));
 193     if (!link) return E_OUTOFMEMORY;
 194
 195     HlinkCreateFromMoniker(pimkTarget, pwzLocation, pwzFriendlyName, NULL,
 196             0, NULL, &IID_IHlink, (void**)&link->link);
 197
 198     list_add_head(&This->links, &link->entry);
 199     This->current = LIST_ENTRY(list_head(&This->links), struct link_entry, entry);
 200     return S_OK;
 201 }
 202
 203 static HRESULT WINAPI IHlinkBC_OnNavigateHlink(IHlinkBrowseContext *iface,
 204         DWORD grfHLNF, IMoniker* pmkTarget, LPCWSTR pwzLocation, LPCWSTR
 205         pwzFriendlyName, ULONG *puHLID)
 206 {
 207     HlinkBCImpl  *This = impl_from_IHlinkBrowseContext(iface);
 208
 209     FIXME("(%p)->(%i %p %s %s %p)\n", This, grfHLNF, pmkTarget,
 210             debugstr_w(pwzLocation), debugstr_w(pwzFriendlyName), puHLID);
 211
 212     return S_OK;
 213 }
 214
 215 static struct link_entry *context_get_entry(HlinkBCImpl *ctxt, ULONG hlid)
 216 {
 217     struct list *entry;
 218
 219     switch (hlid)
 220     {
 221     case HLID_PREVIOUS:
 222         entry = list_prev(&ctxt->links, &ctxt->current->entry);
 223         break;
 224     case HLID_NEXT:
 225         entry = list_next(&ctxt->links, &ctxt->current->entry);
 226         break;
 227     case HLID_CURRENT:
 228         entry = &ctxt->current->entry;
 229         break;
 230     case HLID_STACKBOTTOM:
 231         entry = list_tail(&ctxt->links);
 232         break;
 233     case HLID_STACKTOP:
 234         entry = list_head(&ctxt->links);
 235         break;
 236     default:
 237         WARN("unknown id 0x%x\n", hlid);
 238         entry = NULL;
 239     }
 240
 241     return entry ? LIST_ENTRY(entry, struct link_entry, entry) : NULL;
 242 }
 243
 244 static HRESULT WINAPI IHlinkBC_UpdateHlink(IHlinkBrowseContext* iface,
 245         ULONG hlid, IMoniker *target, LPCWSTR location, LPCWSTR friendly_name)
 246 {
 247     HlinkBCImpl *This = impl_from_IHlinkBrowseContext(iface);
 248     struct link_entry *entry = context_get_entry(This, hlid);
 249     IHlink *link;
 250     HRESULT hr;
 251
 252     TRACE("(%p)->(0x%x %p %s %s)\n", This, hlid, target, debugstr_w(location), debugstr_w(friendly_name));
 253
 254     if (!entry)
 255         return E_INVALIDARG;
 256
 257     hr = HlinkCreateFromMoniker(target, location, friendly_name, NULL, 0, NULL, &IID_IHlink, (void**)&link);
 258     if (FAILED(hr))
 259         return hr;
 260
 261     IHlink_Release(entry->link);
 262     entry->link = link;
 263
 264     return S_OK;
 265 }
 266
 267 static HRESULT WINAPI IHlinkBC_EnumNavigationStack( IHlinkBrowseContext *iface,
 268         DWORD dwReserved, DWORD grfHLFNAMEF, IEnumHLITEM** ppienumhlitem)
 269 {
 270     FIXME("\n");
 271     return E_NOTIMPL;
 272 }
 273
 274 static HRESULT WINAPI IHlinkBC_QueryHlink( IHlinkBrowseContext* iface,
 275         DWORD grfHLONG, ULONG uHLID)
 276 {
 277     FIXME("\n");
 278     return E_NOTIMPL;
 279 }
 280
 281 static HRESULT WINAPI IHlinkBC_GetHlink(IHlinkBrowseContext* iface, ULONG hlid, IHlink **ret)
 282 {
 283     HlinkBCImpl *This = impl_from_IHlinkBrowseContext(iface);
 284     struct link_entry *link;
 285
 286     TRACE("(%p)->(0x%x %p)\n", This, hlid, ret);
 287
 288     link = context_get_entry(This, hlid);
 289     if (!link)
 290         return E_FAIL;
 291
 292     *ret = link->link;
 293     IHlink_AddRef(*ret);
 294
 295     return S_OK;
 296 }
 297
 298 static HRESULT WINAPI IHlinkBC_SetCurrentHlink(IHlinkBrowseContext* iface, ULONG hlid)
 299 {
 300     HlinkBCImpl *This = impl_from_IHlinkBrowseContext(iface);
 301     struct link_entry *link;
 302
 303     TRACE("(%p)->(0x%08x)\n", This, hlid);
 304
 305     link = context_get_entry(This, hlid);
 306     if (!link)
 307         return E_FAIL;
 308
 309     This->current = link;
 310     return S_OK;
 311 }
 312
 313 static HRESULT WINAPI IHlinkBC_Clone( IHlinkBrowseContext* iface,
 314         IUnknown* piunkOuter, REFIID riid, IUnknown** ppiunkOjb)
 315 {
 316     FIXME("\n");
 317     return E_NOTIMPL;
 318 }
 319
 320 static HRESULT WINAPI IHlinkBC_Close(IHlinkBrowseContext* iface,
 321         DWORD reserved)
 322 {
 323     FIXME("\n");
 324     return E_NOTIMPL;
 325 }
 326
 327 static const IHlinkBrowseContextVtbl hlvt =
 328 {
 329     IHlinkBC_fnQueryInterface,
 330     IHlinkBC_fnAddRef,
 331     IHlinkBC_fnRelease,
 332     IHlinkBC_Register,
 333     IHlinkBC_GetObject,
 334     IHlinkBC_Revoke,
 335     IHlinkBC_SetBrowseWindowInfo,
 336     IHlinkBC_GetBrowseWindowInfo,
 337     IHlinkBC_SetInitialHlink,
 338     IHlinkBC_OnNavigateHlink,
 339     IHlinkBC_UpdateHlink,
 340     IHlinkBC_EnumNavigationStack,
 341     IHlinkBC_QueryHlink,
 342     IHlinkBC_GetHlink,
 343     IHlinkBC_SetCurrentHlink,
 344     IHlinkBC_Clone,
 345     IHlinkBC_Close
 346 };
 347
 348 HRESULT HLinkBrowseContext_Constructor(IUnknown *pUnkOuter, REFIID riid, void **ppv)
 349 {
 350     HlinkBCImpl * hl;
 351
 352     TRACE("unkOut=%p riid=%s\n", pUnkOuter, debugstr_guid(riid));
 353     *ppv = NULL;
 354
 355     if (pUnkOuter)
 356         return CLASS_E_NOAGGREGATION;
 357
 358     hl = heap_alloc_zero(sizeof(HlinkBCImpl));
 359     if (!hl)
 360         return E_OUTOFMEMORY;
 361
 362     hl->ref = 1;
 363     hl->IHlinkBrowseContext_iface.lpVtbl = &hlvt;
 364     list_init(&hl->links);
 365     hl->current = NULL;
 366
 367     *ppv = hl;
 368     return S_OK;
 369 }