[SHELL32]
[reactos.git] / reactos / dll / win32 / shell32 / CEnumIDListBase.h
1 /*
2 * This library is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU Lesser General Public
4 * License as published by the Free Software Foundation; either
5 * version 2.1 of the License, or (at your option) any later version.
6 *
7 * This library is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10 * Lesser General Public License for more details.
11 *
12 * You should have received a copy of the GNU Lesser General Public
13 * License along with this library; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
15 */
16
17 #ifndef __ENUMIDLIST_H__
18 #define __ENUMIDLIST_H__
19
20 struct ENUMLIST
21 {
22 ENUMLIST *pNext;
23 LPITEMIDLIST pidl;
24 };
25
26 class CEnumIDListBase :
27 public CComObjectRootEx<CComMultiThreadModelNoCS>,
28 public IEnumIDList
29 {
30 private:
31 ENUMLIST *mpFirst;
32 ENUMLIST *mpLast;
33 ENUMLIST *mpCurrent;
34 public:
35 CEnumIDListBase();
36 virtual ~CEnumIDListBase();
37 BOOL AddToEnumList(LPITEMIDLIST pidl);
38 BOOL DeleteList();
39 BOOL HasItemWithCLSID(LPITEMIDLIST pidl);
40 HRESULT AppendItemsFromEnumerator(IEnumIDList* pEnum);
41
42 // *** IEnumIDList methods ***
43 virtual HRESULT STDMETHODCALLTYPE Next(ULONG celt, LPITEMIDLIST *rgelt, ULONG *pceltFetched);
44 virtual HRESULT STDMETHODCALLTYPE Skip(ULONG celt);
45 virtual HRESULT STDMETHODCALLTYPE Reset();
46 virtual HRESULT STDMETHODCALLTYPE Clone(IEnumIDList **ppenum);
47
48 BEGIN_COM_MAP(CEnumIDListBase)
49 COM_INTERFACE_ENTRY_IID(IID_IEnumIDList, IEnumIDList)
50 END_COM_MAP()
51 };
52
53 #endif /* __ENUMIDLIST_H__ */