dlls/browseui/aclmulti.c

   1 /*
   2  *      Multisource AutoComplete list
   3  *
   4  *      Copyright 2007  Mikolaj Zalewski
   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 "config.h"
  22
  23 #include <stdarg.h>
  24
  25 #define COBJMACROS
  26
  27 #include "wine/debug.h"
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "winreg.h"
  31 #include "winuser.h"
  32 #include "shlwapi.h"
  33 #include "winerror.h"
  34 #include "objbase.h"
  35
  36 #include "shlguid.h"
  37 #include "shlobj.h"
  38
  39 #include "wine/unicode.h"
  40
  41 #include "browseui.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(browseui);
  44
  45 struct ACLMultiSublist {
  46     IUnknown *punk;
  47     IEnumString *pEnum;
  48     IACList *pACL;
  49 };
  50
  51 typedef struct tagACLMulti {
  52     IEnumString IEnumString_iface;
  53     IACList IACList_iface;
  54     IObjMgr IObjMgr_iface;
  55     LONG refCount;
  56     INT nObjs;
  57     INT currObj;
  58     struct ACLMultiSublist *objs;
  59 } ACLMulti;
  60
  61 static inline ACLMulti *impl_from_IEnumString(IEnumString *iface)
  62 {
  63     return CONTAINING_RECORD(iface, ACLMulti, IEnumString_iface);
  64 }
  65
  66 static inline ACLMulti *impl_from_IACList(IACList *iface)
  67 {
  68     return CONTAINING_RECORD(iface, ACLMulti, IACList_iface);
  69 }
  70
  71 static inline ACLMulti *impl_from_IObjMgr(IObjMgr *iface)
  72 {
  73     return CONTAINING_RECORD(iface, ACLMulti, IObjMgr_iface);
  74 }
  75
  76 static void release_obj(struct ACLMultiSublist *obj)
  77 {
  78     IUnknown_Release(obj->punk);
  79     if (obj->pEnum)
  80         IEnumString_Release(obj->pEnum);
  81     if (obj->pACL)
  82         IACList_Release(obj->pACL);
  83 }
  84
  85 static void ACLMulti_Destructor(ACLMulti *This)
  86 {
  87     int i;
  88     TRACE("destroying %p\n", This);
  89     for (i = 0; i < This->nObjs; i++)
  90         release_obj(&This->objs[i]);
  91     heap_free(This->objs);
  92     heap_free(This);
  93     BROWSEUI_refCount--;
  94 }
  95
  96 static HRESULT WINAPI ACLMulti_QueryInterface(IEnumString *iface, REFIID iid, LPVOID *ppvOut)
  97 {
  98     ACLMulti *This = impl_from_IEnumString(iface);
  99     *ppvOut = NULL;
 100
 101     if (IsEqualIID(iid, &IID_IUnknown) || IsEqualIID(iid, &IID_IEnumString))
 102     {
 103         *ppvOut = This;
 104     }
 105     else if (IsEqualIID(iid, &IID_IACList))
 106     {
 107         *ppvOut = &This->IACList_iface;
 108     }
 109     else if (IsEqualIID(iid, &IID_IObjMgr))
 110     {
 111         *ppvOut = &This->IObjMgr_iface;
 112     }
 113
 114     if (*ppvOut)
 115     {
 116         IUnknown_AddRef(iface);
 117         return S_OK;
 118     }
 119
 120     WARN("unsupported interface: %s\n", debugstr_guid(iid));
 121     return E_NOINTERFACE;
 122 }
 123
 124 static ULONG WINAPI ACLMulti_AddRef(IEnumString *iface)
 125 {
 126     ACLMulti *This = impl_from_IEnumString(iface);
 127     return InterlockedIncrement(&This->refCount);
 128 }
 129
 130 static ULONG WINAPI ACLMulti_Release(IEnumString *iface)
 131 {
 132     ACLMulti *This = impl_from_IEnumString(iface);
 133     ULONG ret;
 134
 135     ret = InterlockedDecrement(&This->refCount);
 136     if (ret == 0)
 137         ACLMulti_Destructor(This);
 138     return ret;
 139 }
 140
 141 static HRESULT WINAPI ACLMulti_Append(IObjMgr *iface, IUnknown *obj)
 142 {
 143     ACLMulti *This = impl_from_IObjMgr(iface);
 144
 145     TRACE("(%p, %p)\n", This, obj);
 146     if (obj == NULL)
 147         return E_FAIL;
 148
 149     This->objs = heap_realloc(This->objs, sizeof(This->objs[0]) * (This->nObjs+1));
 150     This->objs[This->nObjs].punk = obj;
 151     IUnknown_AddRef(obj);
 152     if (FAILED(IUnknown_QueryInterface(obj, &IID_IEnumString, (LPVOID *)&This->objs[This->nObjs].pEnum)))
 153         This->objs[This->nObjs].pEnum = NULL;
 154     if (FAILED(IUnknown_QueryInterface(obj, &IID_IACList, (LPVOID *)&This->objs[This->nObjs].pACL)))
 155         This->objs[This->nObjs].pACL = NULL;
 156     This->nObjs++;
 157     return S_OK;
 158 }
 159
 160 static HRESULT WINAPI ACLMulti_Remove(IObjMgr *iface, IUnknown *obj)
 161 {
 162     ACLMulti *This = impl_from_IObjMgr(iface);
 163     int i;
 164
 165     TRACE("(%p, %p)\n", This, obj);
 166     for (i = 0; i < This->nObjs; i++)
 167         if (This->objs[i].punk == obj)
 168         {
 169             release_obj(&This->objs[i]);
 170             memmove(&This->objs[i], &This->objs[i+1], (This->nObjs-i-1)*sizeof(struct ACLMultiSublist));
 171             This->nObjs--;
 172             This->objs = heap_realloc(This->objs, sizeof(This->objs[0]) * This->nObjs);
 173             return S_OK;
 174         }
 175
 176     return E_FAIL;
 177 }
 178
 179 static HRESULT WINAPI ACLMulti_Next(IEnumString *iface, ULONG celt, LPOLESTR *rgelt, ULONG *pceltFetched)
 180 {
 181     ACLMulti *This = impl_from_IEnumString(iface);
 182
 183     TRACE("(%p, %d, %p, %p)\n", iface, celt, rgelt, pceltFetched);
 184     while (This->currObj < This->nObjs)
 185     {
 186         if (This->objs[This->currObj].pEnum)
 187         {
 188             /* native browseui 6.0 also returns only one element */
 189             HRESULT ret = IEnumString_Next(This->objs[This->currObj].pEnum, 1, rgelt, pceltFetched);
 190             if (ret != S_FALSE)
 191                 return ret;
 192         }
 193         This->currObj++;
 194     }
 195
 196     if (pceltFetched)
 197         *pceltFetched = 0;
 198     *rgelt = NULL;
 199     return S_FALSE;
 200 }
 201
 202 static HRESULT WINAPI ACLMulti_Reset(IEnumString *iface)
 203 {
 204     ACLMulti *This = impl_from_IEnumString(iface);
 205     int i;
 206
 207     This->currObj = 0;
 208     for (i = 0; i < This->nObjs; i++)
 209     {
 210         if (This->objs[i].pEnum)
 211             IEnumString_Reset(This->objs[i].pEnum);
 212     }
 213     return S_OK;
 214 }
 215
 216 static HRESULT WINAPI ACLMulti_Skip(IEnumString *iface, ULONG celt)
 217 {
 218     /* native browseui 6.0 returns this: */
 219     return E_NOTIMPL;
 220 }
 221
 222 static HRESULT WINAPI ACLMulti_Clone(IEnumString *iface, IEnumString **ppOut)
 223 {
 224     *ppOut = NULL;
 225     /* native browseui 6.0 returns this: */
 226     return E_OUTOFMEMORY;
 227 }
 228
 229 static HRESULT WINAPI ACLMulti_Expand(IACList *iface, LPCWSTR wstr)
 230 {
 231     ACLMulti *This = impl_from_IACList(iface);
 232     HRESULT res = S_OK;
 233     int i;
 234
 235     for (i = 0; i < This->nObjs; i++)
 236     {
 237         if (!This->objs[i].pACL)
 238             continue;
 239         res = IACList_Expand(This->objs[i].pACL, wstr);
 240         /* Vista behaviour - XP would break out of the loop if res == S_OK (usually calling Expand only once) */
 241     }
 242     return res;
 243 }
 244
 245 static const IEnumStringVtbl ACLMultiVtbl =
 246 {
 247     ACLMulti_QueryInterface,
 248     ACLMulti_AddRef,
 249     ACLMulti_Release,
 250
 251     ACLMulti_Next,
 252     ACLMulti_Skip,
 253     ACLMulti_Reset,
 254     ACLMulti_Clone
 255 };
 256
 257 static HRESULT WINAPI ACLMulti_IObjMgr_QueryInterface(IObjMgr *iface, REFIID iid, LPVOID *ppvOut)
 258 {
 259     ACLMulti *This = impl_from_IObjMgr(iface);
 260     return ACLMulti_QueryInterface(&This->IEnumString_iface, iid, ppvOut);
 261 }
 262
 263 static ULONG WINAPI ACLMulti_IObjMgr_AddRef(IObjMgr *iface)
 264 {
 265     ACLMulti *This = impl_from_IObjMgr(iface);
 266     return ACLMulti_AddRef(&This->IEnumString_iface);
 267 }
 268
 269 static ULONG WINAPI ACLMulti_IObjMgr_Release(IObjMgr *iface)
 270 {
 271     ACLMulti *This = impl_from_IObjMgr(iface);
 272     return ACLMulti_Release(&This->IEnumString_iface);
 273 }
 274
 275 static const IObjMgrVtbl ACLMulti_ObjMgrVtbl =
 276 {
 277     ACLMulti_IObjMgr_QueryInterface,
 278     ACLMulti_IObjMgr_AddRef,
 279     ACLMulti_IObjMgr_Release,
 280
 281     ACLMulti_Append,
 282     ACLMulti_Remove
 283 };
 284
 285 static HRESULT WINAPI ACLMulti_IACList_QueryInterface(IACList *iface, REFIID iid, LPVOID *ppvOut)
 286 {
 287     ACLMulti *This = impl_from_IACList(iface);
 288     return ACLMulti_QueryInterface(&This->IEnumString_iface, iid, ppvOut);
 289 }
 290
 291 static ULONG WINAPI ACLMulti_IACList_AddRef(IACList *iface)
 292 {
 293     ACLMulti *This = impl_from_IACList(iface);
 294     return ACLMulti_AddRef(&This->IEnumString_iface);
 295 }
 296
 297 static ULONG WINAPI ACLMulti_IACList_Release(IACList *iface)
 298 {
 299     ACLMulti *This = impl_from_IACList(iface);
 300     return ACLMulti_Release(&This->IEnumString_iface);
 301 }
 302
 303 static const IACListVtbl ACLMulti_ACListVtbl =
 304 {
 305     ACLMulti_IACList_QueryInterface,
 306     ACLMulti_IACList_AddRef,
 307     ACLMulti_IACList_Release,
 308
 309     ACLMulti_Expand
 310 };
 311
 312 HRESULT ACLMulti_Constructor(IUnknown *pUnkOuter, IUnknown **ppOut)
 313 {
 314     ACLMulti *This;
 315     if (pUnkOuter)
 316         return CLASS_E_NOAGGREGATION;
 317
 318     This = heap_alloc_zero(sizeof(ACLMulti));
 319     if (This == NULL)
 320         return E_OUTOFMEMORY;
 321
 322     This->IEnumString_iface.lpVtbl = &ACLMultiVtbl;
 323     This->IACList_iface.lpVtbl = &ACLMulti_ACListVtbl;
 324     This->IObjMgr_iface.lpVtbl = &ACLMulti_ObjMgrVtbl;
 325     This->refCount = 1;
 326
 327     TRACE("returning %p\n", This);
 328     *ppOut = (IUnknown *)This;
 329     BROWSEUI_refCount++;
 330     return S_OK;
 331 }