2 * clipboard helper functions
4 * Copyright 2000 Juergen Schmied <juergen.schmied@debitel.de>
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.
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.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * For copy & paste functions within contextmenus does the shell use
23 * the OLE clipboard functions in combination with dataobjects.
24 * The OLE32.DLL gets loaded with LoadLibrary
26 * - a right mousebutton-copy sets the following formats:
29 * Preferred Drop Effect
30 * Shell Object Offsets
34 * OlePrivateData (ClipboardDataObjectInterface)
46 #include "undocshell.h"
47 #include "shell32_main.h"
50 #include "wine/unicode.h"
51 #include "wine/debug.h"
53 WINE_DEFAULT_DEBUG_CHANNEL(shell);
55 /**************************************************************************
58 * creates a CF_HDROP structure
60 HGLOBAL RenderHDROP(LPITEMIDLIST pidlRoot, LPITEMIDLIST * apidl, UINT cidl)
63 int rootsize = 0,size = 0;
64 char szRootPath[MAX_PATH];
65 char szFileName[MAX_PATH];
67 DROPFILES *pDropFiles;
70 TRACE("(%p,%p,%u)\n", pidlRoot, apidl, cidl);
72 /* get the size needed */
73 size = sizeof(DROPFILES);
75 SHGetPathFromIDListA(pidlRoot, szRootPath);
76 PathAddBackslashA(szRootPath);
77 rootsize = strlen(szRootPath);
81 _ILSimpleGetText(apidl[i], szFileName, MAX_PATH);
82 size += rootsize + strlen(szFileName) + 1;
87 /* Fill the structure */
88 hGlobal = GlobalAlloc(GHND|GMEM_SHARE, size);
89 if(!hGlobal) return hGlobal;
91 pDropFiles = (DROPFILES *)GlobalLock(hGlobal);
92 pDropFiles->pFiles = sizeof(DROPFILES);
93 pDropFiles->fWide = FALSE;
95 offset = pDropFiles->pFiles;
96 strcpy(szFileName, szRootPath);
101 _ILSimpleGetText(apidl[i], szFileName + rootsize, MAX_PATH - rootsize);
102 size = strlen(szFileName) + 1;
103 strcpy(((char*)pDropFiles)+offset, szFileName);
107 ((char*)pDropFiles)[offset] = 0;
108 GlobalUnlock(hGlobal);
113 HGLOBAL RenderSHELLIDLIST (LPITEMIDLIST pidlRoot, LPITEMIDLIST * apidl, UINT cidl)
116 int offset = 0, sizePidl, size;
120 TRACE("(%p,%p,%u)\n", pidlRoot, apidl, cidl);
122 /* get the size needed */
123 size = sizeof(CIDA) + sizeof (UINT)*(cidl); /* header */
124 size += ILGetSize (pidlRoot); /* root pidl */
125 for(i=0; i<cidl; i++)
127 size += ILGetSize(apidl[i]); /* child pidls */
130 /* fill the structure */
131 hGlobal = GlobalAlloc(GHND|GMEM_SHARE, size);
132 if(!hGlobal) return hGlobal;
133 pcida = GlobalLock (hGlobal);
137 offset = sizeof(CIDA) + sizeof (UINT)*(cidl);
138 pcida->aoffset[0] = offset; /* first element */
139 sizePidl = ILGetSize (pidlRoot);
140 memcpy(((LPBYTE)pcida)+offset, pidlRoot, sizePidl);
143 for(i=0; i<cidl; i++) /* child pidls */
145 pcida->aoffset[i+1] = offset;
146 sizePidl = ILGetSize(apidl[i]);
147 memcpy(((LPBYTE)pcida)+offset, apidl[i], sizePidl);
151 GlobalUnlock(hGlobal);
155 HGLOBAL RenderSHELLIDLISTOFFSET (LPITEMIDLIST pidlRoot, LPITEMIDLIST * apidl, UINT cidl)
161 HGLOBAL RenderFILECONTENTS (LPITEMIDLIST pidlRoot, LPITEMIDLIST * apidl, UINT cidl)
167 HGLOBAL RenderFILEDESCRIPTOR (LPITEMIDLIST pidlRoot, LPITEMIDLIST * apidl, UINT cidl)
173 HGLOBAL RenderFILENAMEA (LPITEMIDLIST pidlRoot, LPITEMIDLIST * apidl, UINT cidl)
176 char szTemp[MAX_PATH], *szFileName;
181 TRACE("(%p,%p,%u)\n", pidlRoot, apidl, cidl);
183 /* get path of combined pidl */
184 pidl = ILCombine(pidlRoot, apidl[0]);
188 hr = SHELL_GetPathFromIDListA(pidl, szTemp, MAX_PATH);
193 size = strlen(szTemp) + 1;
195 /* fill the structure */
196 hGlobal = GlobalAlloc(GHND|GMEM_SHARE, size);
197 if(!hGlobal) return hGlobal;
198 szFileName = (char *)GlobalLock(hGlobal);
199 memcpy(szFileName, szTemp, size);
200 GlobalUnlock(hGlobal);
205 HGLOBAL RenderFILENAMEW (LPITEMIDLIST pidlRoot, LPITEMIDLIST * apidl, UINT cidl)
208 WCHAR szTemp[MAX_PATH], *szFileName;
213 TRACE("(%p,%p,%u)\n", pidlRoot, apidl, cidl);
215 /* get path of combined pidl */
216 pidl = ILCombine(pidlRoot, apidl[0]);
220 hr = SHELL_GetPathFromIDListW(pidl, szTemp, MAX_PATH);
225 size = (strlenW(szTemp)+1) * sizeof(WCHAR);
227 /* fill the structure */
228 hGlobal = GlobalAlloc(GHND|GMEM_SHARE, size);
229 if(!hGlobal) return hGlobal;
230 szFileName = (WCHAR *)GlobalLock(hGlobal);
231 memcpy(szFileName, szTemp, size);
232 GlobalUnlock(hGlobal);
237 HGLOBAL RenderPREFEREDDROPEFFECT (DWORD dwFlags)
242 TRACE("(0x%08lx)\n", dwFlags);
244 hGlobal = GlobalAlloc(GHND|GMEM_SHARE, sizeof(DWORD));
245 if(!hGlobal) return hGlobal;
246 pdwFlag = (DWORD*)GlobalLock(hGlobal);
248 GlobalUnlock(hGlobal);
252 /**************************************************************************
255 * checks if there is something in the clipboard we can use
257 BOOL IsDataInClipboard (HWND hwnd)
261 if (OpenClipboard(hwnd))
263 if (GetOpenClipboardWindow())
265 ret = IsClipboardFormatAvailable(CF_TEXT);