|
1 /*------------------------------------------------------------------ |
|
2 - |
|
3 * Software Name : UserEmulator |
|
4 * Version : v4.2.1309 |
|
5 * |
|
6 * Copyright (c) 2009 France Telecom. All rights reserved. |
|
7 * This software is distributed under the License |
|
8 * "Eclipse Public License - v 1.0" the text of which is available |
|
9 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
10 * |
|
11 * Initial Contributors: |
|
12 * France Telecom |
|
13 * |
|
14 * Contributors: |
|
15 *------------------------------------------------------------------ |
|
16 - |
|
17 * File Name: NotifyFileChange.h |
|
18 * |
|
19 * Created: 13/08/2009 |
|
20 * Author(s): Marcell Kiss, Reshma Sandeep Das |
|
21 * |
|
22 * Description: |
|
23 * Active object implementation for notification of file changes |
|
24 *------------------------------------------------------------------ |
|
25 - |
|
26 * |
|
27 */ |
|
28 #ifndef NOTIFYFILECHANGE__ |
|
29 #define NOTIFYFILECHANGE__ |
|
30 |
|
31 //System Includes |
|
32 #include <e32std.h> |
|
33 #include <e32base.h> |
|
34 #include <f32file.h> |
|
35 |
|
36 //User Includes |
|
37 #include "Constants.h" |
|
38 |
|
39 /** |
|
40 * MFileChangeObserver |
|
41 * Interface class for file change notifications |
|
42 */ |
|
43 class MFileChangeObserver |
|
44 { |
|
45 public: |
|
46 /** |
|
47 * FileChangeEventL |
|
48 * Callback function that notifies any file change events |
|
49 */ |
|
50 virtual void FileChangeEventL() = 0; |
|
51 }; |
|
52 |
|
53 /** |
|
54 * CNotifyFileChange |
|
55 * Class implementation for notification of file changes |
|
56 */ |
|
57 |
|
58 class CNotifyFileChange : public CActive |
|
59 { |
|
60 public: |
|
61 /** |
|
62 * Static constructor |
|
63 * @param aObserver Reference to the MFileChangeObserver class |
|
64 * @param aPath file path |
|
65 * @return CNotifyFileChange* A pointer to the newly alocated CNotifyFileChange class. |
|
66 * NULL, if the class cannot be created |
|
67 */ |
|
68 static CNotifyFileChange* NewL( MFileChangeObserver& aObserver, const TDesC& aPath ); |
|
69 /** |
|
70 * Static constructor |
|
71 * @param aObserver Reference to the MFileChangeObserver class |
|
72 * @param aPath file path |
|
73 * @return CNotifyFileChange* A pointer to the newly alocated CNotifyFileChange class. |
|
74 * NULL, if the class cannot be created |
|
75 */ |
|
76 static CNotifyFileChange* NewLC( MFileChangeObserver& aObserver, const TDesC& aPath ); |
|
77 |
|
78 /** |
|
79 * Destructor |
|
80 */ |
|
81 virtual ~CNotifyFileChange(); |
|
82 |
|
83 /** |
|
84 * Function that requests a notification of change to files or directories |
|
85 * @param aPath File path |
|
86 */ |
|
87 void RefreshPath(TDes& aPath); |
|
88 |
|
89 private: // from CActive |
|
90 /** |
|
91 * Cancels any outstanding request. |
|
92 */ |
|
93 void DoCancel(); |
|
94 |
|
95 /** |
|
96 * Handles the completion of the active request. |
|
97 */ |
|
98 void RunL(); |
|
99 /** |
|
100 * Handles a leave occurring in the request completion event handler CActive::RunL(). |
|
101 */ |
|
102 TInt RunError(TInt aError); |
|
103 |
|
104 private: |
|
105 /** |
|
106 * Constructor |
|
107 * @param aObserver Reference to the MFileChangeObserver class |
|
108 * @param aPath file path |
|
109 */ |
|
110 CNotifyFileChange( MFileChangeObserver& aObserver,const TDesC& aPath ); |
|
111 /** |
|
112 * ConstructL |
|
113 */ |
|
114 void ConstructL(); |
|
115 |
|
116 private: |
|
117 /** |
|
118 * Reference to the MFileChangeObserver class |
|
119 */ |
|
120 MFileChangeObserver& iObserver; |
|
121 /** |
|
122 * Reference to file server session |
|
123 */ |
|
124 RFs iFs; |
|
125 /** |
|
126 * File path |
|
127 */ |
|
128 TDes16& iPath; |
|
129 }; |
|
130 |
|
131 #endif //NOTIFYFILECHANGE__ |