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1 /* |
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2 * Copyright (c) 2008-2008 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: A class to watch changes of a integer property. |
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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 #include <e32base.h> |
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21 #include <e32def.h> |
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22 |
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23 |
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24 #include "AccSrvPSIntPropertyWatch.h" |
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25 #include "acc_debug.h" |
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26 |
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27 |
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28 // ======== LOCAL FUNCTIONS ======== |
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29 |
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30 |
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31 // ======== MEMBER FUNCTIONS ======== |
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32 |
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33 // --------------------------------------------------------- |
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34 // Symbian two-phased constructor |
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35 // --------------------------------------------------------- |
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36 // |
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37 CAccSrvPSIntPropertyWatch* CAccSrvPSIntPropertyWatch::NewL( |
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38 MAccSrvPSIntPropertyObserver* aObserver, |
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39 TUid aCategory, |
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40 TInt aKey, |
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41 TOwnerType aType ) |
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42 { |
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43 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::NewL()" ); |
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44 CAccSrvPSIntPropertyWatch* self = new ( ELeave ) CAccSrvPSIntPropertyWatch(); |
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45 CleanupStack::PushL( self ); |
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46 self->ConstructL( aObserver, aCategory, aKey, aType ); |
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47 CleanupStack::Pop( self ); |
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48 COM_TRACE_1( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::NewL - return %p", self ); |
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49 return self; |
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50 } |
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51 |
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52 |
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53 // --------------------------------------------------------------------------- |
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54 // Symbian two-phased constructor |
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55 // --------------------------------------------------------------------------- |
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56 // |
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57 CAccSrvPSIntPropertyWatch* CAccSrvPSIntPropertyWatch::NewLC( |
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58 MAccSrvPSIntPropertyObserver* aObserver, |
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59 TUid aCategory, |
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60 TInt aKey, |
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61 TOwnerType aType ) |
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62 { |
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63 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::NewLC()" ); |
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64 CAccSrvPSIntPropertyWatch* self = new( ELeave ) CAccSrvPSIntPropertyWatch; |
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65 CleanupStack::PushL( self ); |
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66 self->ConstructL( aObserver, aCategory, aKey, aType ); |
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67 COM_TRACE_1( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::NewLC - return %p", self ); |
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68 return self; |
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69 } |
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70 |
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71 |
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72 // --------------------------------------------------------- |
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73 // Destructor |
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74 // --------------------------------------------------------- |
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75 // |
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76 CAccSrvPSIntPropertyWatch::~CAccSrvPSIntPropertyWatch() |
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77 { |
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78 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::~CAccSrvPSIntPropertyWatch()" ); |
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79 Cancel(); |
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80 iProperty.Close(); |
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81 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::~CAccSrvPSIntPropertyWatch" ); |
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82 } |
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83 |
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84 // --------------------------------------------------------- |
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85 // SubscribeNotification |
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86 // --------------------------------------------------------- |
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87 // |
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88 void CAccSrvPSIntPropertyWatch::Watch() |
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89 { |
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90 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::Watch()" ); |
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91 iProperty.Subscribe(iStatus); |
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92 SetActive(); |
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93 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::Watch - return void" ); |
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94 return; |
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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 // Get current value. |
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100 // --------------------------------------------------------- |
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101 // |
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102 TInt CAccSrvPSIntPropertyWatch::GetCurrentValue( TInt& aValue) |
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103 { |
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104 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::GetCurrentValue()" ); |
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105 TInt value = 0; |
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106 TInt error( iProperty.Get( value ) ); |
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107 if ( KErrNone == error ) |
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108 { |
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109 // use new value ... |
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110 COM_TRACE_1( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::GetCurrentValue - value 0x%x", value ); |
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111 aValue = value; |
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112 } |
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113 else if ( KErrNotFound == error ) |
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114 { |
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115 // property deleted, do necessary actions here... |
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116 iObserver->PSPropertyDeleted( iCategory, iKey ); |
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117 } |
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118 COM_TRACE_1( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::GetCurrentValue - return aError %d", error ); |
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119 return error; |
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120 } |
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121 |
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122 |
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123 // --------------------------------------------------------- |
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124 // From class CActive. |
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125 // DoCancel |
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126 // --------------------------------------------------------- |
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127 // |
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128 void CAccSrvPSIntPropertyWatch::DoCancel() |
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129 { |
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130 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::DoCancel()" ); |
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131 iProperty.Cancel(); |
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132 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::DoCancel - return void" ); |
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133 } |
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134 |
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135 |
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136 // --------------------------------------------------------- |
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137 // C++ constructor |
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138 // --------------------------------------------------------- |
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139 // |
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140 CAccSrvPSIntPropertyWatch::CAccSrvPSIntPropertyWatch() |
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141 :CActive ( EPriority ) |
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142 { |
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143 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::CAccSrvPSIntPropertyWatch()" ); |
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144 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::CAccSrvPSIntPropertyWatch - return" ); |
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145 } |
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146 |
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147 |
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148 // --------------------------------------------------------- |
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149 // ConstructL |
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150 // --------------------------------------------------------- |
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151 // |
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152 void CAccSrvPSIntPropertyWatch::ConstructL( |
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153 MAccSrvPSIntPropertyObserver* aObserver, |
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154 TUid aCategory, |
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155 TInt aKey, |
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156 TOwnerType aType ) |
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157 { |
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158 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::ConstructL()" ); |
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159 iObserver = aObserver; |
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160 iCategory = aCategory; |
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161 iKey = aKey; |
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162 User::LeaveIfError( iProperty.Attach(iCategory,iKey, aType ) ); |
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163 CActiveScheduler::Add(this); |
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164 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::ConstructL - return void" ); |
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165 return; |
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166 } |
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167 |
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168 // --------------------------------------------------------- |
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169 // From class CActive. |
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170 // RunL |
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171 // --------------------------------------------------------- |
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172 // |
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173 void CAccSrvPSIntPropertyWatch::RunL() |
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174 { |
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175 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::RunL()" ); |
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176 |
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177 // resubscribe before processing new value to prevent missing updates |
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178 iProperty.Subscribe(iStatus); |
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179 SetActive(); |
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180 // property updated, get new value |
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181 TInt value; |
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182 if ( iProperty.Get( value ) == KErrNotFound ) |
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183 { |
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184 // property deleted, do necessary actions here... |
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185 iObserver->PSPropertyDeleted( iCategory, iKey ); |
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186 } |
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187 else |
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188 { |
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189 // use new value ... |
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190 iObserver->PSPropertyChanged( iCategory, iKey, value ); |
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191 } |
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192 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::RunL - return void" ); |
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193 } |
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194 |
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195 |
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196 // --------------------------------------------------------- |
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197 // From class CActive. |
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198 // RunL |
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199 // --------------------------------------------------------- |
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200 // |
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201 TInt CAccSrvPSIntPropertyWatch::RunError( TInt aError ) |
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202 { |
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203 COM_TRACE_( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::RunError()" ); |
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204 // Avoid Panic in CActiveScheduler |
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205 aError = KErrNone; |
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206 COM_TRACE_1( "[AccFW:AccServer] CAccSrvPSIntPropertyWatch::RunError - return aError %d", aError ); |
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207 return aError; |
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208 } |
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209 |
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210 |
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211 // ======== GLOBAL FUNCTIONS ======== |
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212 |