|
1 /* |
|
2 * Copyright (c) 2002-2006 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: CNssDBTagSelectNotifier provides tag select notification to |
|
15 * its clients (observers). It itslef receives tag select notification |
|
16 * from Recognition Handler. |
|
17 * |
|
18 */ |
|
19 |
|
20 |
|
21 #ifndef NSSVASCDBTAGSELECTNOTIFIER_H |
|
22 #define NSSVASCDBTAGSELECTNOTIFIER_H |
|
23 |
|
24 #include <e32base.h> |
|
25 #include "nssvascvasdatabase.h" |
|
26 #include "nssvasmdbtagselectnotifierclient.h" |
|
27 |
|
28 |
|
29 // CLASS DECLARATIONS |
|
30 /** |
|
31 * CNssDBTagSelectNotifier provides tag select notification to its clients. |
|
32 * @lib NssVASApi.lib |
|
33 * @since 2.8 |
|
34 */ |
|
35 class CNssDBTagSelectNotifier : public CActive |
|
36 { |
|
37 public: |
|
38 |
|
39 /** |
|
40 * 2 Phase construction |
|
41 * @param aVasDatabase - a pointer to the datatbase |
|
42 * @return a pointer to CNssDBTagSelectNotifier |
|
43 */ |
|
44 static CNssDBTagSelectNotifier* NewL( CNssVASDatabase* aVasDatabase ); |
|
45 |
|
46 /** |
|
47 * 2 Phase construction |
|
48 * @param aVasDatabase - a pointer to the datatbase |
|
49 * @return a pointer to CNssDBTagSelectNotifier |
|
50 */ |
|
51 static CNssDBTagSelectNotifier* NewLC( CNssVASDatabase* aVasDatabase ); |
|
52 |
|
53 /** |
|
54 * Destructor. |
|
55 */ |
|
56 ~CNssDBTagSelectNotifier(); |
|
57 |
|
58 /** |
|
59 * Register a client (observer) for tag select notification |
|
60 * @since 2.0 |
|
61 * @param aObserver - MNssDBTagSelectNotifierClient |
|
62 * @return error code |
|
63 */ |
|
64 TInt RegisterForNotification( MNssDBTagSelectNotifierClient* aObserver ); |
|
65 |
|
66 /** |
|
67 * Deregister a client (observer) from tag select notification |
|
68 * @since 2.0 |
|
69 * @param aObserver - MNssDBTagSelectNotifierClient |
|
70 * @return error code |
|
71 */ |
|
72 TInt Deregister( MNssDBTagSelectNotifierClient* aObserver ); |
|
73 |
|
74 /** |
|
75 * Handle selection, called by regconition when tag is selected |
|
76 * @since 2.0 |
|
77 * @param None |
|
78 * @return None |
|
79 */ |
|
80 void HandleSelection( CNssTag* aTag ); |
|
81 |
|
82 private: |
|
83 |
|
84 /** |
|
85 * C++ constructor |
|
86 */ |
|
87 CNssDBTagSelectNotifier(); |
|
88 |
|
89 /** |
|
90 * Overloaded C++constructor |
|
91 */ |
|
92 CNssDBTagSelectNotifier( CNssVASDatabase* aVasDatabase ); |
|
93 |
|
94 /** |
|
95 * Symbian construtor |
|
96 */ |
|
97 void ConstructL (); |
|
98 |
|
99 /** |
|
100 * Handles selection of a tag based on tag and context ids |
|
101 * |
|
102 * @param "TInt aTagId" Tag identifier |
|
103 * @param "TInt aContextId" Context identifier |
|
104 */ |
|
105 void DoHandleSelectionCallback( TInt aTagId, TInt aContextId ); |
|
106 |
|
107 private: // From CActive |
|
108 |
|
109 void RunL(); |
|
110 void DoCancel(); |
|
111 |
|
112 private: |
|
113 // pointer to the VAS datatbase |
|
114 CNssVASDatabase* iVasDatabase; |
|
115 |
|
116 // list of observers (clients) |
|
117 CArrayPtrFlat<MNssDBTagSelectNotifierClient> *iObserverList; |
|
118 |
|
119 // P&S handle |
|
120 RProperty iProperty; |
|
121 |
|
122 // Values read from P&S |
|
123 TInt iTagId; |
|
124 TInt iContextId; |
|
125 }; |
|
126 |
|
127 #endif // NSSVASCDBTAGSELECTNOTIFIER_H |
|
128 |
|
129 // End of file |