1 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is mozilla.org code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 1998
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : *
24 : * Alternatively, the contents of this file may be used under the terms of
25 : * either of the GNU General Public License Version 2 or later (the "GPL"),
26 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27 : * in which case the provisions of the GPL or the LGPL are applicable instead
28 : * of those above. If you wish to allow use of your version of this file only
29 : * under the terms of either the GPL or the LGPL, and not to allow others to
30 : * use your version of this file under the terms of the MPL, indicate your
31 : * decision by deleting the provisions above and replace them with the notice
32 : * and other provisions required by the GPL or the LGPL. If you do not delete
33 : * the provisions above, a recipient may use your version of this file under
34 : * the terms of any one of the MPL, the GPL or the LGPL.
35 : *
36 : * ***** END LICENSE BLOCK ***** */
37 :
38 : #ifndef nsTransactionItem_h__
39 : #define nsTransactionItem_h__
40 :
41 : #include "nsITransaction.h"
42 : #include "nsCOMPtr.h"
43 : #include "nsCycleCollectionParticipant.h"
44 :
45 : class nsTransactionStack;
46 : class nsTransactionManager;
47 :
48 : class nsTransactionItem
49 : {
50 : nsCOMPtr<nsITransaction> mTransaction;
51 : nsTransactionStack *mUndoStack;
52 : nsTransactionStack *mRedoStack;
53 : nsAutoRefCnt mRefCnt;
54 :
55 : public:
56 :
57 : nsTransactionItem(nsITransaction *aTransaction);
58 : virtual ~nsTransactionItem();
59 : nsrefcnt AddRef();
60 : nsrefcnt Release();
61 :
62 1464 : NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(nsTransactionItem)
63 :
64 : virtual nsresult AddChild(nsTransactionItem *aTransactionItem);
65 : virtual nsresult GetTransaction(nsITransaction **aTransaction);
66 : virtual nsresult GetIsBatch(bool *aIsBatch);
67 : virtual nsresult GetNumberOfChildren(PRInt32 *aNumChildren);
68 : virtual nsresult GetChild(PRInt32 aIndex, nsTransactionItem **aChild);
69 :
70 : virtual nsresult DoTransaction(void);
71 : virtual nsresult UndoTransaction(nsTransactionManager *aTxMgr);
72 : virtual nsresult RedoTransaction(nsTransactionManager *aTxMgr);
73 :
74 : private:
75 :
76 : virtual nsresult UndoChildren(nsTransactionManager *aTxMgr);
77 : virtual nsresult RedoChildren(nsTransactionManager *aTxMgr);
78 :
79 : virtual nsresult RecoverFromUndoError(nsTransactionManager *aTxMgr);
80 : virtual nsresult RecoverFromRedoError(nsTransactionManager *aTxMgr);
81 :
82 : virtual nsresult GetNumberOfUndoItems(PRInt32 *aNumItems);
83 : virtual nsresult GetNumberOfRedoItems(PRInt32 *aNumItems);
84 : };
85 :
86 : #endif // nsTransactionItem_h__
|