dlls/shell32/shlfsbind.c

   1 /*
   2  * File System Bind Data object to use as parameter for the bind context to
   3  * IShellFolder_ParseDisplayName
   4  *
   5  * Copyright 2003 Rolf Kalbermatter
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  *
  21  */
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdarg.h>
  26
  27 #define COBJMACROS
  28
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "winuser.h"
  32 #include "shlobj.h"
  33 #include "shell32_main.h"
  34
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(pidl);
  38
  39 /***********************************************************************
  40  * IFileSystemBindData implementation
  41  */
  42 typedef struct
  43 {
  44     const IFileSystemBindDataVtbl *lpVtbl;
  45     LONG              ref;
  46     WIN32_FIND_DATAW findFile;
  47 } IFileSystemBindDataImpl;
  48
  49 static HRESULT WINAPI IFileSystemBindData_fnQueryInterface(IFileSystemBindData *, REFIID, LPVOID*);
  50 static ULONG WINAPI IFileSystemBindData_fnAddRef(IFileSystemBindData *);
  51 static ULONG WINAPI IFileSystemBindData_fnRelease(IFileSystemBindData *);
  52 static HRESULT WINAPI IFileSystemBindData_fnGetFindData(IFileSystemBindData *, WIN32_FIND_DATAW *);
  53 static HRESULT WINAPI IFileSystemBindData_fnSetFindData(IFileSystemBindData *, const WIN32_FIND_DATAW *);
  54
  55 static const IFileSystemBindDataVtbl sbvt =
  56 {
  57     IFileSystemBindData_fnQueryInterface,
  58     IFileSystemBindData_fnAddRef,
  59     IFileSystemBindData_fnRelease,
  60     IFileSystemBindData_fnSetFindData,
  61     IFileSystemBindData_fnGetFindData,
  62 };
  63
  64 static const WCHAR wFileSystemBindData[] = {
  65     'F','i','l','e',' ','S','y','s','t','e','m',' ','B','i','n','d',' ','D','a','t','a',0};
  66
  67 HRESULT WINAPI IFileSystemBindData_Constructor(const WIN32_FIND_DATAW *pfd, LPBC *ppV)
  68 {
  69     IFileSystemBindDataImpl *sb;
  70     HRESULT ret = E_OUTOFMEMORY;
  71
  72     TRACE("%p, %p\n", pfd, ppV);
  73
  74     if (!ppV)
  75        return E_INVALIDARG;
  76
  77     *ppV = NULL;
  78
  79     sb = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IFileSystemBindDataImpl));
  80     if (!sb)
  81         return ret;
  82
  83     sb->lpVtbl = &sbvt;
  84     sb->ref = 1;
  85     IFileSystemBindData_fnSetFindData((IFileSystemBindData*)sb, pfd);
  86
  87     ret = CreateBindCtx(0, ppV);
  88     if (SUCCEEDED(ret))
  89     {
  90         BIND_OPTS bindOpts;
  91
  92         bindOpts.cbStruct = sizeof(BIND_OPTS);
  93         bindOpts.grfFlags = 0;
  94         bindOpts.grfMode = STGM_CREATE;
  95         bindOpts.dwTickCountDeadline = 0;
  96         IBindCtx_SetBindOptions(*ppV, &bindOpts);
  97         IBindCtx_RegisterObjectParam(*ppV, (LPOLESTR)wFileSystemBindData, (LPUNKNOWN)sb);
  98
  99         IFileSystemBindData_Release((IFileSystemBindData*)sb);
 100     }
 101     else
 102         HeapFree(GetProcessHeap(), 0, sb);
 103     return ret;
 104 }
 105
 106 static HRESULT WINAPI IFileSystemBindData_fnQueryInterface(
 107                 IFileSystemBindData *iface, REFIID riid, LPVOID *ppV)
 108 {
 109     IFileSystemBindDataImpl *This = (IFileSystemBindDataImpl *)iface;
 110     TRACE("(%p)->(\n\tIID:\t%s, %p)\n", This, debugstr_guid(riid), ppV);
 111
 112     *ppV = NULL;
 113
 114     if (IsEqualIID(riid, &IID_IUnknown))
 115         *ppV = This;
 116     else if (IsEqualIID(riid, &IID_IFileSystemBindData))
 117         *ppV = This;
 118
 119     if (*ppV)
 120     {
 121         IUnknown_AddRef((IUnknown*)(*ppV));
 122         TRACE("-- Interface: (%p)->(%p)\n", ppV, *ppV);
 123         return S_OK;
 124     }
 125     TRACE("-- Interface: E_NOINTERFACE\n");
 126     return E_NOINTERFACE;
 127 }
 128
 129 static ULONG WINAPI IFileSystemBindData_fnAddRef(IFileSystemBindData *iface)
 130 {
 131     IFileSystemBindDataImpl *This = (IFileSystemBindDataImpl *)iface;
 132     ULONG refCount = InterlockedIncrement(&This->ref);
 133
 134     TRACE("(%p)->(count=%i)\n", This, refCount - 1);
 135
 136     return refCount;
 137 }
 138
 139 static ULONG WINAPI IFileSystemBindData_fnRelease(IFileSystemBindData *iface)
 140 {
 141     IFileSystemBindDataImpl *This = (IFileSystemBindDataImpl *)iface;
 142     ULONG refCount = InterlockedDecrement(&This->ref);
 143
 144     TRACE("(%p)->(count=%i)\n", This, refCount + 1);
 145
 146     if (!refCount)
 147     {
 148         TRACE(" destroying ISFBindPidl(%p)\n",This);
 149         HeapFree(GetProcessHeap(), 0, This);
 150     }
 151     return refCount;
 152 }
 153
 154 static HRESULT WINAPI IFileSystemBindData_fnGetFindData(
 155                IFileSystemBindData *iface, WIN32_FIND_DATAW *pfd)
 156 {
 157     IFileSystemBindDataImpl *This = (IFileSystemBindDataImpl *)iface;
 158     TRACE("(%p), %p\n", This, pfd);
 159
 160     if (!pfd)
 161         return E_INVALIDARG;
 162
 163     *pfd = This->findFile;
 164     return NOERROR;
 165 }
 166
 167 static HRESULT WINAPI IFileSystemBindData_fnSetFindData(
 168                IFileSystemBindData *iface, const WIN32_FIND_DATAW *pfd)
 169 {
 170     IFileSystemBindDataImpl *This = (IFileSystemBindDataImpl *)iface;
 171     TRACE("(%p), %p\n", This, pfd);
 172
 173     if (pfd)
 174         This->findFile = *pfd;
 175     else
 176         memset(&This->findFile, 0, sizeof(WIN32_FIND_DATAW));
 177     return NOERROR;
 178 }