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 } IFileSystemBindDataImpl;
  48
  49 static inline IFileSystemBindDataImpl *impl_from_IFileSystemBindData(IFileSystemBindData *iface)
  50 {
  51     return CONTAINING_RECORD(iface, IFileSystemBindDataImpl, IFileSystemBindData_iface);
  52 }
  53
  54 static HRESULT WINAPI IFileSystemBindData_fnQueryInterface(IFileSystemBindData *, REFIID, LPVOID*);
  55 static ULONG WINAPI IFileSystemBindData_fnAddRef(IFileSystemBindData *);
  56 static ULONG WINAPI IFileSystemBindData_fnRelease(IFileSystemBindData *);
  57 static HRESULT WINAPI IFileSystemBindData_fnGetFindData(IFileSystemBindData *, WIN32_FIND_DATAW *);
  58 static HRESULT WINAPI IFileSystemBindData_fnSetFindData(IFileSystemBindData *, const WIN32_FIND_DATAW *);
  59
  60 static const IFileSystemBindDataVtbl sbvt =
  61 {
  62     IFileSystemBindData_fnQueryInterface,
  63     IFileSystemBindData_fnAddRef,
  64     IFileSystemBindData_fnRelease,
  65     IFileSystemBindData_fnSetFindData,
  66     IFileSystemBindData_fnGetFindData,
  67 };
  68
  69 static const WCHAR wFileSystemBindData[] = {
  70     'F','i','l','e',' ','S','y','s','t','e','m',' ','B','i','n','d',' ','D','a','t','a',0};
  71
  72 HRESULT WINAPI IFileSystemBindData_Constructor(const WIN32_FIND_DATAW *pfd, LPBC *ppV)
  73 {
  74     IFileSystemBindDataImpl *sb;
  75     HRESULT ret = E_OUTOFMEMORY;
  76
  77     TRACE("%p, %p\n", pfd, ppV);
  78
  79     if (!ppV)
  80        return E_INVALIDARG;
  81
  82     *ppV = NULL;
  83
  84     sb = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IFileSystemBindDataImpl));
  85     if (!sb)
  86         return ret;
  87
  88     sb->IFileSystemBindData_iface.lpVtbl = &sbvt;
  89     sb->ref = 1;
  90     IFileSystemBindData_fnSetFindData(&sb->IFileSystemBindData_iface, pfd);
  91
  92     ret = CreateBindCtx(0, ppV);
  93     if (SUCCEEDED(ret))
  94     {
  95         BIND_OPTS bindOpts;
  96
  97         bindOpts.cbStruct = sizeof(BIND_OPTS);
  98         bindOpts.grfFlags = 0;
  99         bindOpts.grfMode = STGM_CREATE;
 100         bindOpts.dwTickCountDeadline = 0;
 101         IBindCtx_SetBindOptions(*ppV, &bindOpts);
 102         IBindCtx_RegisterObjectParam(*ppV, (LPOLESTR)wFileSystemBindData, (LPUNKNOWN)sb);
 103
 104         IFileSystemBindData_Release(&sb->IFileSystemBindData_iface);
 105     }
 106     else
 107         HeapFree(GetProcessHeap(), 0, sb);
 108     return ret;
 109 }
 110
 111 static HRESULT WINAPI IFileSystemBindData_fnQueryInterface(
 112                 IFileSystemBindData *iface, REFIID riid, LPVOID *ppV)
 113 {
 114     IFileSystemBindDataImpl *This = impl_from_IFileSystemBindData(iface);
 115     TRACE("(%p)->(\n\tIID:\t%s, %p)\n", This, debugstr_guid(riid), ppV);
 116
 117     *ppV = NULL;
 118
 119     if (IsEqualIID(riid, &IID_IUnknown))
 120         *ppV = This;
 121     else if (IsEqualIID(riid, &IID_IFileSystemBindData))
 122         *ppV = This;
 123
 124     if (*ppV)
 125     {
 126         IUnknown_AddRef((IUnknown*)(*ppV));
 127         TRACE("-- Interface: (%p)->(%p)\n", ppV, *ppV);
 128         return S_OK;
 129     }
 130     TRACE("-- Interface: E_NOINTERFACE\n");
 131     return E_NOINTERFACE;
 132 }
 133
 134 static ULONG WINAPI IFileSystemBindData_fnAddRef(IFileSystemBindData *iface)
 135 {
 136     IFileSystemBindDataImpl *This = impl_from_IFileSystemBindData(iface);
 137     ULONG refCount = InterlockedIncrement(&This->ref);
 138
 139     TRACE("(%p)->(count=%i)\n", This, refCount - 1);
 140
 141     return refCount;
 142 }
 143
 144 static ULONG WINAPI IFileSystemBindData_fnRelease(IFileSystemBindData *iface)
 145 {
 146     IFileSystemBindDataImpl *This = impl_from_IFileSystemBindData(iface);
 147     ULONG refCount = InterlockedDecrement(&This->ref);
 148
 149     TRACE("(%p)->(count=%i)\n", This, refCount + 1);
 150
 151     if (!refCount)
 152     {
 153         TRACE(" destroying ISFBindPidl(%p)\n",This);
 154         HeapFree(GetProcessHeap(), 0, This);
 155     }
 156     return refCount;
 157 }
 158
 159 static HRESULT WINAPI IFileSystemBindData_fnGetFindData(
 160                IFileSystemBindData *iface, WIN32_FIND_DATAW *pfd)
 161 {
 162     IFileSystemBindDataImpl *This = impl_from_IFileSystemBindData(iface);
 163     TRACE("(%p), %p\n", This, pfd);
 164
 165     if (!pfd)
 166         return E_INVALIDARG;
 167
 168     *pfd = This->findFile;
 169     return NOERROR;
 170 }
 171
 172 static HRESULT WINAPI IFileSystemBindData_fnSetFindData(
 173                IFileSystemBindData *iface, const WIN32_FIND_DATAW *pfd)
 174 {
 175     IFileSystemBindDataImpl *This = impl_from_IFileSystemBindData(iface);
 176     TRACE("(%p), %p\n", This, pfd);
 177
 178     if (pfd)
 179         This->findFile = *pfd;
 180     else
 181         memset(&This->findFile, 0, sizeof(WIN32_FIND_DATAW));
 182     return NOERROR;
 183 }