dlls/shell32/dragdrophelper.c

   1 /*
   2  *      file system folder
   3  *
   4  *      Copyright 1997                  Marcus Meissner
   5  *      Copyright 1998, 1999, 2002      Juergen Schmied
   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <stdio.h>
  28
  29 #include "winerror.h"
  30 #include "winbase.h"
  31 #include "winreg.h"
  32
  33 #include "oleidl.h"
  34 #include "shlguid.h"
  35
  36 #include "wine/obj_dragdrophelper.h"
  37 #include "wine/debug.h"
  38 #include "debughlp.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL (shell);
  41
  42 /***********************************************************************
  43 *   IDropTargetHelper implementation
  44 */
  45
  46 typedef struct {
  47     ICOM_VFIELD (IDropTargetHelper);
  48     DWORD ref;
  49 } IDropTargetHelperImpl;
  50
  51 static struct ICOM_VTABLE (IDropTargetHelper) vt_IDropTargetHelper;
  52
  53 #define _IUnknown_(This) (IUnknown*)&(This->lpVtbl)
  54 #define _IDropTargetHelper_(This) (IDropTargetHelper*)&(This->lpVtbl)
  55
  56 /**************************************************************************
  57 *       IDropTargetHelper_Constructor
  58 */
  59 HRESULT WINAPI IDropTargetHelper_Constructor (IUnknown * pUnkOuter, REFIID riid, LPVOID * ppv)
  60 {
  61     IDropTargetHelperImpl *dth;
  62
  63     TRACE ("unkOut=%p %s\n", pUnkOuter, shdebugstr_guid (riid));
  64
  65     if (!ppv)
  66         return E_POINTER;
  67     if (pUnkOuter)
  68         return CLASS_E_NOAGGREGATION;
  69
  70     dth = (IDropTargetHelperImpl *) LocalAlloc (GMEM_ZEROINIT, sizeof (IDropTargetHelperImpl));
  71     if (!dth) return E_OUTOFMEMORY;
  72
  73     dth->ref = 0;
  74     ICOM_VTBL (dth) = &vt_IDropTargetHelper;
  75
  76     if (!SUCCEEDED (IUnknown_QueryInterface (_IUnknown_ (dth), riid, ppv))) {
  77         IUnknown_Release (_IUnknown_ (dth));
  78         return E_NOINTERFACE;
  79     }
  80
  81     TRACE ("--(%p)\n", dth);
  82     return S_OK;
  83 }
  84
  85 /**************************************************************************
  86  *      IDropTargetHelper_fnQueryInterface
  87  */
  88 static HRESULT WINAPI IDropTargetHelper_fnQueryInterface (IDropTargetHelper * iface, REFIID riid, LPVOID * ppvObj)
  89 {
  90     ICOM_THIS (IDropTargetHelperImpl, iface);
  91
  92     TRACE ("(%p)->(%s,%p)\n", This, shdebugstr_guid (riid), ppvObj);
  93
  94     *ppvObj = NULL;
  95
  96     if (IsEqualIID (riid, &IID_IUnknown) || IsEqualIID (riid, &IID_IDropTargetHelper)) {
  97         *ppvObj = This;
  98     }
  99
 100     if (*ppvObj) {
 101         IUnknown_AddRef ((IUnknown *) (*ppvObj));
 102         TRACE ("-- Interface: (%p)->(%p)\n", ppvObj, *ppvObj);
 103         return S_OK;
 104     }
 105     FIXME ("-- Interface: E_NOINTERFACE\n");
 106     return E_NOINTERFACE;
 107 }
 108
 109 static ULONG WINAPI IDropTargetHelper_fnAddRef (IDropTargetHelper * iface)
 110 {
 111     ICOM_THIS (IDropTargetHelperImpl, iface);
 112
 113     TRACE ("(%p)->(count=%lu)\n", This, This->ref);
 114
 115     return ++(This->ref);
 116 }
 117
 118 static ULONG WINAPI IDropTargetHelper_fnRelease (IDropTargetHelper * iface)
 119 {
 120     ICOM_THIS (IDropTargetHelperImpl, iface);
 121
 122     TRACE ("(%p)->(count=%lu)\n", This, This->ref);
 123
 124     if (!--(This->ref)) {
 125         TRACE ("-- destroying (%p)\n", This);
 126         LocalFree ((HLOCAL) This);
 127     }
 128     return This->ref;
 129 }
 130
 131 static HRESULT WINAPI IDropTargetHelper_fnDragEnter (
 132         IDropTargetHelper * iface,
 133         HWND hwndTarget,
 134         IDataObject* pDataObject,
 135         POINT* ppt,
 136         DWORD dwEffect)
 137 {
 138     ICOM_THIS (IDropTargetHelperImpl, iface);
 139     FIXME ("(%p)->(0x%x %p %p 0x%08lx)\n", This,hwndTarget, pDataObject, ppt, dwEffect);
 140     return E_NOTIMPL;
 141 }
 142
 143 static HRESULT WINAPI IDropTargetHelper_fnDragLeave (IDropTargetHelper * iface)
 144 {
 145     ICOM_THIS (IDropTargetHelperImpl, iface);
 146     FIXME ("(%p)->()\n", This);
 147     return E_NOTIMPL;
 148 }
 149
 150 static HRESULT WINAPI IDropTargetHelper_fnDragOver (IDropTargetHelper * iface, POINT* ppt, DWORD dwEffect)
 151 {
 152     ICOM_THIS (IDropTargetHelperImpl, iface);
 153     FIXME ("(%p)->(%p 0x%08lx)\n", This, ppt, dwEffect);
 154     return E_NOTIMPL;
 155 }
 156
 157 static HRESULT WINAPI IDropTargetHelper_fnDrop (IDropTargetHelper * iface, IDataObject* pDataObject, POINT* ppt, DWORD dwEffect)
 158 {
 159     ICOM_THIS (IDropTargetHelperImpl, iface);
 160     FIXME ("(%p)->(%p %p 0x%08lx)\n", This, pDataObject, ppt, dwEffect);
 161     return E_NOTIMPL;
 162 }
 163
 164 static HRESULT WINAPI IDropTargetHelper_fnShow (IDropTargetHelper * iface, BOOL fShow)
 165 {
 166     ICOM_THIS (IDropTargetHelperImpl, iface);
 167     FIXME ("(%p)->(%u)\n", This, fShow);
 168     return E_NOTIMPL;
 169 }
 170
 171 static ICOM_VTABLE (IDropTargetHelper) vt_IDropTargetHelper =
 172 {
 173         ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 174         IDropTargetHelper_fnQueryInterface,
 175         IDropTargetHelper_fnAddRef,
 176         IDropTargetHelper_fnRelease,
 177         IDropTargetHelper_fnDragEnter,
 178         IDropTargetHelper_fnDragLeave,
 179         IDropTargetHelper_fnDragOver,
 180         IDropTargetHelper_fnDrop,
 181         IDropTargetHelper_fnShow
 182 };