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1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // CScreensaverActivityManager class |
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15 // |
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16 // |
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17 |
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18 #include "screensaveractivitymanager.h" |
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19 |
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20 CScreensaverActivityManager* CScreensaverActivityManager::NewL(TInt aPriority) |
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21 { |
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22 CScreensaverActivityManager* self = new (ELeave) CScreensaverActivityManager(aPriority); |
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23 CleanupStack::PushL(self); |
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24 self->ConstructL(); |
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25 CActiveScheduler::Add(self); |
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26 CleanupStack::Pop(self); |
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27 return self; |
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28 } |
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29 |
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30 CScreensaverActivityManager::CScreensaverActivityManager(TInt aPriority) |
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31 : CTimer(aPriority), iInactiveCallback(0,0), iActiveCallback(0,0), iState(EStNotActive) |
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32 { |
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33 } |
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34 |
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35 |
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36 CScreensaverActivityManager::~CScreensaverActivityManager() |
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37 { |
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38 } |
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39 |
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40 |
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41 void CScreensaverActivityManager::Start(TTimeIntervalSeconds aInterval, |
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42 TCallBack aInactiveCallback, TCallBack aActiveCallback) |
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43 { |
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44 iInterval = aInterval; |
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45 iInactiveCallback = aInactiveCallback; |
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46 iActiveCallback = aActiveCallback; |
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47 |
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48 if (iInterval.Int() < 0) |
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49 { |
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50 iInterval = TTimeIntervalSeconds(0); |
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51 } |
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52 |
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53 // Cancel outstanding timer, if any |
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54 CTimer::Cancel(); |
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55 |
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56 if (iState == EStNotActive || iState == EStMonForInactivity) |
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57 { |
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58 // Begin or contine monitoring for user inactivity |
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59 MonitorInactivity(); |
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60 } |
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61 else |
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62 { |
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63 // Continue monitoring for user activity |
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64 Inactivity(0); |
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65 } |
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66 } |
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67 |
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68 |
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69 void CScreensaverActivityManager::SetInactivityTimeout(TTimeIntervalSeconds aInterval) |
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70 { |
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71 if (iState <= EStNotActive) |
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72 { |
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73 } |
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74 Start(aInterval, iInactiveCallback, iActiveCallback); |
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75 } |
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76 |
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77 |
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78 void CScreensaverActivityManager::MonitorInactivity() |
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79 { |
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80 if (User::InactivityTime() >= iInterval) |
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81 { |
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82 // Already inactive enough, monitor for activity |
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83 iState = EStMonForActivity; |
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84 // Monitor for activity, set timer before callback to avoid missing any |
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85 // user activity should callback take some time. |
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86 Inactivity(0); |
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87 // Inform client that the inactivity interval has ended. |
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88 (void) iInactiveCallback.CallBack(); |
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89 } |
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90 else |
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91 { |
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92 // Monitor for Inactivity |
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93 iState = EStMonForInactivity; |
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94 Inactivity(iInterval); |
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95 } |
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96 } |
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97 |
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98 |
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99 void CScreensaverActivityManager::RunL() |
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100 { |
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101 if (iStatus == KErrNone) |
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102 { |
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103 if (iState == EStMonForInactivity) |
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104 { |
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105 // Looking for Inactivity, found it |
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106 // Monitor for activity, set timer before callback to avoid missing |
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107 // any user activity should callback take some time. |
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108 iState = EStMonForActivity; |
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109 Inactivity(0); |
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110 // Inform client that the inactivity interval has ended. |
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111 (void) iInactiveCallback.CallBack(); |
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112 } |
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113 else if (iState == EStMonForActivity) |
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114 { |
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115 // Looking for activity, found it |
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116 // Monitor for activity unless MonitorInactivity overrides it |
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117 iState = EStMonForInactivity; |
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118 MonitorInactivity(); |
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119 (void) iActiveCallback.CallBack(); |
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120 } |
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121 else |
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122 { // Must never happen, indicates internal state of object incorrect. |
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123 |
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124 } |
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125 } |
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126 } |
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127 |
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128 TBool CScreensaverActivityManager::IsMonitoringForActivity() |
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129 { |
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130 return ( iState == EStMonForActivity ); |
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131 } |