1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsTransactionManager_h__
#define nsTransactionManager_h__
#include "nsCOMArray.h"
#include "nsCOMPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "nsTransactionStack.h"
#include "nsISupportsImpl.h"
#include "nsITransactionManager.h"
#include "nsTransactionStack.h"
#include "nsWeakReference.h"
#include "nscore.h"
class nsITransaction;
class nsITransactionListener;
/** implementation of a transaction manager object.
*
*/
class nsTransactionManager final : public nsITransactionManager
, public nsSupportsWeakReference
{
private:
int32_t mMaxTransactionCount;
nsTransactionStack mDoStack;
nsTransactionStack mUndoStack;
nsTransactionStack mRedoStack;
nsCOMArray<nsITransactionListener> mListeners;
/** The default destructor.
*/
virtual ~nsTransactionManager();
public:
/** The default constructor.
*/
explicit nsTransactionManager(int32_t aMaxTransactionCount=-1);
/* Macro for AddRef(), Release(), and QueryInterface() */
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsTransactionManager,
nsITransactionManager)
/* nsITransactionManager method implementations. */
NS_DECL_NSITRANSACTIONMANAGER
already_AddRefed<nsITransaction> PeekUndoStack();
already_AddRefed<nsITransaction> PeekRedoStack();
virtual nsresult WillDoNotify(nsITransaction *aTransaction, bool *aInterrupt);
virtual nsresult DidDoNotify(nsITransaction *aTransaction, nsresult aExecuteResult);
virtual nsresult WillUndoNotify(nsITransaction *aTransaction, bool *aInterrupt);
virtual nsresult DidUndoNotify(nsITransaction *aTransaction, nsresult aUndoResult);
virtual nsresult WillRedoNotify(nsITransaction *aTransaction, bool *aInterrupt);
virtual nsresult DidRedoNotify(nsITransaction *aTransaction, nsresult aRedoResult);
virtual nsresult WillBeginBatchNotify(bool *aInterrupt);
virtual nsresult DidBeginBatchNotify(nsresult aResult);
virtual nsresult WillEndBatchNotify(bool *aInterrupt);
virtual nsresult DidEndBatchNotify(nsresult aResult);
virtual nsresult WillMergeNotify(nsITransaction *aTop,
nsITransaction *aTransaction,
bool *aInterrupt);
virtual nsresult DidMergeNotify(nsITransaction *aTop,
nsITransaction *aTransaction,
bool aDidMerge,
nsresult aMergeResult);
private:
/* nsTransactionManager specific private methods. */
virtual nsresult BeginTransaction(nsITransaction *aTransaction,
nsISupports *aData);
virtual nsresult EndTransaction(bool aAllowEmpty);
};
#endif // nsTransactionManager_h__
|
