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1 /* |
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2 * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 |
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21 #ifndef __ALFEXCALENDARENGINEEVENTTIMER_H__ |
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22 #define __ALFEXCALENDARENGINEEVENTTIMER_H__ |
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23 |
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24 #include <e32base.h> |
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25 #include <e32std.h> |
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26 |
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27 |
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28 |
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29 /** |
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30 * MAlfExCalendarEngineEventTimer is a pure virtual class that |
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31 * defines callback function which is called when timer event |
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32 * occurs. |
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33 */ |
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34 class MAlfExCalendarEngineEventTimerObserver |
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35 { |
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36 public: |
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37 /** |
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38 * Called when timer event triggered in |
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39 * CAlfExCalendarEngineEventTimer |
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40 */ |
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41 virtual void HandleTimerEventL() = 0; |
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42 }; |
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43 |
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44 |
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45 |
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46 |
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47 /** |
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48 * CAlfExCalendarEngine is a class that gives data to be displayed in |
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49 * alfexcalendar example application. |
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50 */ |
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51 class CAlfExCalendarEngineEventTimer : public CActive |
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52 { |
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53 public: |
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54 /* Constructors and destructor. */ |
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55 |
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56 /** |
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57 * Constructor |
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58 */ |
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59 static CAlfExCalendarEngineEventTimer* NewL(MAlfExCalendarEngineEventTimerObserver& aObserver); |
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60 |
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61 /** |
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62 * Constructor |
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63 */ |
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64 static CAlfExCalendarEngineEventTimer* NewLC(MAlfExCalendarEngineEventTimerObserver& aObserver); |
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65 |
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66 /** |
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67 * Destructor. |
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68 */ |
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69 virtual ~CAlfExCalendarEngineEventTimer(); |
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70 |
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71 public: |
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72 |
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73 |
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74 /* Methods. */ |
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75 |
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76 /** @beginAPI */ |
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77 /** |
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78 * Starts timer. |
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79 * Cancels previous timer if still active. |
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80 * |
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81 * @param aDelay: delay. |
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82 */ |
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83 void StartTimer( TTimeIntervalMicroSeconds32 aDelay); |
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84 |
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85 /** @endAPI */ |
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86 |
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87 private: |
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88 /* Constructors. */ |
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89 |
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90 /** |
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91 * C++ constructor |
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92 */ |
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93 CAlfExCalendarEngineEventTimer(MAlfExCalendarEngineEventTimerObserver& aObserver); |
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94 |
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95 /** |
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96 * Second-phase constructor. |
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97 */ |
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98 void ConstructL(); |
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99 |
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100 |
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101 protected: |
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102 /** |
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103 * From CActive |
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104 */ |
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105 virtual void DoCancel(); |
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106 |
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107 /** |
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108 * From CActive |
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109 */ |
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110 virtual void RunL(); |
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111 |
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112 /** |
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113 * From CActive. |
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114 * This is called if RunL function leaves. |
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115 * Here we can just ignore all the errors and return KErrNone |
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116 */ |
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117 virtual TInt RunError(TInt aError); |
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118 private: |
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119 /** |
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120 * timer object. |
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121 */ |
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122 RTimer iTimer; |
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123 |
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124 /** |
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125 * Observer object |
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126 */ |
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127 MAlfExCalendarEngineEventTimerObserver& iObserver; |
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128 }; |
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129 |
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130 #endif // __ALFEXCALENDARENGINEEVENTTIMER_H__ |