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     IFileSystemBindData IFileSystemBindData_iface;
  45     LONG ref;
  46     WIN32_FIND_DATAW findFile;
  47 } FileSystemBindData;
  48
  49 static inline FileSystemBindData *impl_from_IFileSystemBindData(IFileSystemBindData *iface)
  50 {
  51     return CONTAINING_RECORD(iface, FileSystemBindData, IFileSystemBindData_iface);
  52 }
  53
  54 static HRESULT WINAPI FileSystemBindData_QueryInterface(
  55                 IFileSystemBindData *iface, REFIID riid, LPVOID *ppV)
  56 {
  57     FileSystemBindData *This = impl_from_IFileSystemBindData(iface);
  58
  59     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppV);
  60
  61     *ppV = NULL;
  62
  63     if (IsEqualIID(riid, &IID_IUnknown) ||
  64         IsEqualIID(riid, &IID_IFileSystemBindData))
  65     {
  66         *ppV = &This->IFileSystemBindData_iface;
  67     }
  68
  69     if (*ppV)
  70     {
  71         IFileSystemBindData_AddRef(iface);
  72         TRACE("-- Interface: (%p)->(%p)\n", ppV, *ppV);
  73         return S_OK;
  74     }
  75     TRACE("-- Interface: E_NOINTERFACE\n");
  76     return E_NOINTERFACE;
  77 }
  78
  79 static ULONG WINAPI FileSystemBindData_AddRef(IFileSystemBindData *iface)
  80 {
  81     FileSystemBindData *This = impl_from_IFileSystemBindData(iface);
  82     ULONG ref = InterlockedIncrement(&This->ref);
  83     TRACE("(%p)->(%u)\n", This, ref);
  84     return ref;
  85 }
  86
  87 static ULONG WINAPI FileSystemBindData_Release(IFileSystemBindData *iface)
  88 {
  89     FileSystemBindData *This = impl_from_IFileSystemBindData(iface);
  90     ULONG ref = InterlockedDecrement(&This->ref);
  91
  92     TRACE("(%p)->(%u)\n", This, ref);
  93
  94     if (!ref)
  95         HeapFree(GetProcessHeap(), 0, This);
  96
  97     return ref;
  98 }
  99
 100 static HRESULT WINAPI FileSystemBindData_GetFindData(IFileSystemBindData *iface, WIN32_FIND_DATAW *pfd)
 101 {
 102     FileSystemBindData *This = impl_from_IFileSystemBindData(iface);
 103
 104     TRACE("(%p)->(%p)\n", This, pfd);
 105
 106     if (!pfd)
 107         return E_INVALIDARG;
 108
 109     *pfd = This->findFile;
 110     return S_OK;
 111 }
 112
 113 static HRESULT WINAPI FileSystemBindData_SetFindData(IFileSystemBindData *iface, const WIN32_FIND_DATAW *pfd)
 114 {
 115     FileSystemBindData *This = impl_from_IFileSystemBindData(iface);
 116
 117     TRACE("(%p)->(%p)\n", This, pfd);
 118
 119     if (pfd)
 120         This->findFile = *pfd;
 121     else
 122         memset(&This->findFile, 0, sizeof(WIN32_FIND_DATAW));
 123     return S_OK;
 124 }
 125
 126 static const IFileSystemBindDataVtbl FileSystemBindDataVtbl = {
 127     FileSystemBindData_QueryInterface,
 128     FileSystemBindData_AddRef,
 129     FileSystemBindData_Release,
 130     FileSystemBindData_SetFindData,
 131     FileSystemBindData_GetFindData,
 132 };
 133
 134 HRESULT WINAPI IFileSystemBindData_Constructor(const WIN32_FIND_DATAW *find_data, LPBC *ppV)
 135 {
 136     FileSystemBindData *This;
 137     HRESULT ret;
 138
 139     TRACE("(%p %p)\n", find_data, ppV);
 140
 141     if (!ppV)
 142        return E_INVALIDARG;
 143
 144     *ppV = NULL;
 145
 146     This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
 147     if (!This) return E_OUTOFMEMORY;
 148
 149     This->IFileSystemBindData_iface.lpVtbl = &FileSystemBindDataVtbl;
 150     This->ref = 1;
 151     IFileSystemBindData_SetFindData(&This->IFileSystemBindData_iface, find_data);
 152
 153     ret = CreateBindCtx(0, ppV);
 154     if (SUCCEEDED(ret))
 155     {
 156         static const WCHAR nameW[] = {
 157             'F','i','l','e',' ','S','y','s','t','e','m',' ','B','i','n','d',' ','D','a','t','a',0};
 158         BIND_OPTS bindOpts;
 159
 160         bindOpts.cbStruct = sizeof(BIND_OPTS);
 161         bindOpts.grfFlags = 0;
 162         bindOpts.grfMode = STGM_CREATE;
 163         bindOpts.dwTickCountDeadline = 0;
 164         IBindCtx_SetBindOptions(*ppV, &bindOpts);
 165         IBindCtx_RegisterObjectParam(*ppV, (WCHAR*)nameW, (IUnknown*)&This->IFileSystemBindData_iface);
 166
 167         IFileSystemBindData_Release(&This->IFileSystemBindData_iface);
 168     }
 169     else
 170         HeapFree(GetProcessHeap(), 0, This);
 171     return ret;
 172 }