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1 /* |
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2 * Copyright (c) 2006-2007 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: ?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 #include "irchangeobserver.h" |
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20 #include "irdebug.h" |
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21 |
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22 // ============================ MEMBER FUNCTIONS =============================== |
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23 |
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24 // ----------------------------------------------------------------------------- |
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25 // CIRObserver::CIRObserver |
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26 // C++ default constructor CIRObserver |
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27 // ----------------------------------------------------------------------------- |
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28 // |
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29 CIRObserver::CIRObserver(MIRChangeObserver& aObserver, const TUid& aCategory, |
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30 const TUint aKey, const RProperty::TType aPropertyType) |
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31 : CActive( CActive::EPriorityLow ), |
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32 iObserver( aObserver ), |
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33 iCategory( aCategory ), |
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34 iKey( aKey ), |
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35 iPropertyType( aPropertyType ) |
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36 { |
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37 IRLOG_DEBUG( "CIRObserver::CIRObserver" ); |
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38 } |
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39 |
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40 // ----------------------------------------------------------------------------- |
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41 // CIRObserver::ConstructL |
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42 // Symbian 2nd phase constructor can leave. |
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43 // ----------------------------------------------------------------------------- |
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44 // |
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45 void CIRObserver::ConstructL() |
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46 { |
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47 IRLOG_DEBUG( "CIRObserver::ConstructL - Entering" ); |
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48 User::LeaveIfError( iProperty.Attach( iCategory, iKey ) ); |
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49 CActiveScheduler::Add( this ); |
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50 RunL(); |
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51 IRLOG_DEBUG( "CIRObserver::ConstructL - Exiting." ); |
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52 } |
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53 |
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54 // ----------------------------------------------------------------------------- |
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55 // CIRObserver::NewL |
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56 // Two-phased constructor. |
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57 // ----------------------------------------------------------------------------- |
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58 // |
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59 CIRObserver* CIRObserver::NewL(MIRChangeObserver& aObserver, const TUid& |
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60 aCategory, const TUint aKey, const RProperty::TType aPropertyType) |
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61 { |
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62 IRLOG_DEBUG( "CIRObserver::NewL - Entering" ); |
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63 CIRObserver* self = new( ELeave )CIRObserver( aObserver, aCategory, aKey, |
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64 aPropertyType ); |
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65 CleanupStack::PushL( self ); |
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66 self->ConstructL(); |
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67 CleanupStack::Pop( self ); |
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68 IRLOG_DEBUG( "CIRObserver::NewL - Exiting." ); |
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69 return self; |
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70 } |
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71 |
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72 // ----------------------------------------------------------------------------- |
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73 // CIRObserver::~CIRObserver |
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74 // C++ default destructor |
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75 // ----------------------------------------------------------------------------- |
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76 // |
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77 CIRObserver::~CIRObserver() |
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78 { |
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79 IRLOG_DEBUG( "CIRObserver::~CIRObserver - Entering" ); |
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80 Cancel(); |
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81 iProperty.Close(); //Closes the publish and subscribe handler |
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82 IRLOG_DEBUG( "CIRObserver::~CIRObserver - Exiting." ); |
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83 } |
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84 |
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85 // ----------------------------------------------------------------------------- |
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86 // CIRObserver::RunL |
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87 // The function is called by the active scheduler |
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88 // when a request completion event occurs |
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89 // ----------------------------------------------------------------------------- |
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90 // |
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91 void CIRObserver::RunL() |
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92 { |
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93 IRLOG_DEBUG( "CIRObserver::RunL - Entering" ); |
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94 //Subscribe the handler |
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95 iProperty.Subscribe( iStatus ); |
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96 SetActive(); |
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97 TInt err(KErrNone); |
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98 switch (iPropertyType) |
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99 { |
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100 case RProperty::EInt: |
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101 { |
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102 err = iProperty.Get( iValueInt ); |
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103 if (!err) |
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104 { |
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105 //callback function called when a property value of type int. |
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106 iObserver.HandleChangeL( iCategory, iKey, iValueInt ); |
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107 } |
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108 break; |
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109 } |
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110 case RProperty::EText: |
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111 { |
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112 break; |
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113 } |
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114 default: |
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115 { |
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116 break; |
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117 } |
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118 } |
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119 IRLOG_DEBUG( "CIRObserver::RunL - Exiting." ); |
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120 } |
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121 |
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122 // ----------------------------------------------------------------------------- |
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123 // CIRObserver::DoCancel |
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124 // Cancels an outstanding active request |
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125 // ----------------------------------------------------------------------------- |
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126 // |
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127 void CIRObserver::DoCancel() |
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128 { |
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129 IRLOG_DEBUG( "CIRObserver::DoCancel - Entering" ); |
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130 iProperty.Cancel(); |
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131 IRLOG_DEBUG( "CIRObserver::DoCancel - Exiting" ); |
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132 } |
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133 |
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134 // ----------------------------------------------------------------------------- |
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135 // CIRObserver::GetValue |
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136 // ----------------------------------------------------------------------------- |
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137 // |
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138 void CIRObserver::GetValue(TInt& aValue) const |
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139 { |
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140 IRLOG_DEBUG( "CIRObserver::GetValue - Entering" ); |
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141 //aValue assigned with the current Property value |
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142 aValue = iValueInt; |
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143 IRLOG_DEBUG( "CIRObserver::GetValue - Exiting" ); |
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144 } |
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145 |
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146 // End of File |
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147 |