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1 /* |
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2 * Copyright (c) 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: Observes the state of P&S 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 <e32cmn.h> |
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21 #include <vccsubscribekeys.h> |
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22 |
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23 #include "vccengpspropertylistener.h" |
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24 #include "rubydebug.h" |
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25 |
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26 //#include "vccuipropertyhandler.pan" |
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27 |
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28 // ======== MEMBER FUNCTIONS ======== |
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29 // ----------------------------------------------------------------------------- |
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30 // C++ constructor |
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31 // ----------------------------------------------------------------------------- |
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32 // |
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33 CVccEngPsPropertyListener::CVccEngPsPropertyListener( |
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34 const TUid aCategoryUid, |
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35 const TUint aKeyId ): |
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36 CActive( EPriorityStandard ), |
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37 iCategoryId( aCategoryUid ), |
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38 iKeyId( aKeyId ) |
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39 { |
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40 RUBY_DEBUG_BLOCK( "VccEngPsPropertyListener::CVccEngPsPropertyListener" ); |
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41 } |
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42 |
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43 // ----------------------------------------------------------------------------- |
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44 // 2nd phase constructor |
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45 // ----------------------------------------------------------------------------- |
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46 // |
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47 void CVccEngPsPropertyListener::ConstructL() |
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48 { |
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49 RUBY_DEBUG_BLOCKL( "CVccEngPsPropertyListener::ConstructL" ); |
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50 // Attach to categroy and key. |
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51 User::LeaveIfError( iProperty.Attach( iCategoryId, iKeyId )); |
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52 // Add to active scheduler |
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53 CActiveScheduler::Add( this ); |
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54 } |
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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 // |
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60 CVccEngPsPropertyListener* CVccEngPsPropertyListener::NewL( |
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61 const TUid aCategoryId, |
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62 const TUint aKeyId) |
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63 { |
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64 RUBY_DEBUG_BLOCKL("CVccEngPsPropertyListener::NewL"); |
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65 |
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66 CVccEngPsPropertyListener* self = new (ELeave) CVccEngPsPropertyListener( |
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67 aCategoryId, aKeyId ); |
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68 CleanupStack::PushL( self ); |
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69 self->ConstructL(); |
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70 CleanupStack::Pop( self ); |
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71 |
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72 return self; |
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73 } |
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74 |
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75 // ----------------------------------------------------------------------------- |
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76 // Destructor |
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77 // ----------------------------------------------------------------------------- |
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78 // |
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79 CVccEngPsPropertyListener::~CVccEngPsPropertyListener() |
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80 { |
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81 RUBY_DEBUG0( "CVccEngPsPropertyListener::~CVccEngPsPropertyListener() - ENTER" ); |
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82 Cancel(); |
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83 iProperty.Close(); |
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84 iObservers.Close(); |
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85 RUBY_DEBUG0( "CVccEngPsPropertyListener::~CVccEngPsPropertyListener() - EXIT" ); |
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86 } |
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87 |
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88 // ----------------------------------------------------------------------------- |
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89 // Add Vcc property observer |
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90 // ----------------------------------------------------------------------------- |
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91 // |
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92 void CVccEngPsPropertyListener::AddObserverL( |
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93 MVccEngPsPropertyListenerObserver& aObserver ) |
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94 { |
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95 RUBY_DEBUG_BLOCKL( "CVccEngPsPropertyListener::AddObserverL" ); |
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96 |
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97 if ( iObservers.Find( &aObserver ) == KErrNotFound ) |
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98 { |
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99 User::LeaveIfError( iObservers.Append( &aObserver ) ); |
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100 } |
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101 } |
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102 |
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103 // ----------------------------------------------------------------------------- |
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104 // Removes observer |
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105 // ----------------------------------------------------------------------------- |
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106 // |
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107 void CVccEngPsPropertyListener::RemoveObserver( |
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108 MVccEngPsPropertyListenerObserver& aObserver ) |
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109 { |
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110 RUBY_DEBUG_BLOCK( "CVccEngPsPropertyListener::RemoveObserver" ); |
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111 |
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112 TInt index = iObservers.Find( &aObserver ); |
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113 |
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114 if ( index != KErrNotFound ) |
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115 { |
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116 iObservers.Remove( index ); |
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117 } |
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118 } |
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119 |
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120 // ----------------------------------------------------------------------------- |
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121 // Fetches the current value of the key |
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122 // ----------------------------------------------------------------------------- |
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123 // |
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124 TInt CVccEngPsPropertyListener::CurrentValue() |
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125 { |
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126 RUBY_DEBUG_BLOCK( "CVccEngPsPropertyListener::CurrentValue" ); |
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127 |
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128 TInt value( KErrNotFound ); |
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129 iProperty.Get( iCategoryId, iKeyId, value ); |
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130 return value; |
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131 } |
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132 |
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133 |
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134 // ----------------------------------------------------------------------------- |
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135 // Cancels the outstanding subsription request |
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136 // ----------------------------------------------------------------------------- |
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137 // |
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138 void CVccEngPsPropertyListener::DoCancel() |
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139 { |
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140 RUBY_DEBUG0( "CVccEngPsPropertyListener::DoCancel - ENTER" ); |
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141 iProperty.Cancel(); |
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142 RUBY_DEBUG0( "CVccEngPsPropertyListener::DoCancel - EXIT" ); |
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143 } |
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144 |
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145 // ----------------------------------------------------------------------------- |
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146 // Subsribes to property |
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147 // ----------------------------------------------------------------------------- |
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148 // |
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149 void CVccEngPsPropertyListener::Start() |
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150 { |
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151 RUBY_DEBUG_BLOCK( "CVccEngPsPropertyListener::Start" ); |
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152 |
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153 // Subscribe to get updates. |
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154 iProperty.Subscribe( iStatus ); |
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155 SetActive(); |
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156 } |
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157 |
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158 // ----------------------------------------------------------------------------- |
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159 // RunL |
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160 // ----------------------------------------------------------------------------- |
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161 // |
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162 void CVccEngPsPropertyListener::RunL() |
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163 { |
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164 TInt err = iStatus.Int(); |
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165 Start(); |
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166 RUBY_DEBUG_BLOCK( "CVccEngPsPropertyListener::RunL" ); |
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167 RUBY_DEBUG1( " - Status: %d", iStatus.Int() ); |
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168 if ( KErrNone == err ) |
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169 { |
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170 RUBY_DEBUG0( " - CVccEngPsPropertyListener::RunL - \ |
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171 if ( KErrNone == err )" ); |
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172 // Notify property changes to observers. |
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173 NotifyObserversL(); |
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174 } |
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175 } |
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176 |
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177 // ----------------------------------------------------------------------------- |
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178 // Notify all observers about the changed value |
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179 // ----------------------------------------------------------------------------- |
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180 // |
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181 void CVccEngPsPropertyListener::NotifyObserversL() |
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182 { |
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183 RUBY_DEBUG_BLOCKL( "CVccEngPsPropertyListener::NotifyObserversL" ); |
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184 |
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185 TInt value = CurrentValue(); |
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186 RUBY_DEBUG1( " - value [%d]", value ); |
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187 |
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188 for ( TInt i(0) ; i < iObservers.Count() ; i++ ) |
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189 { |
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190 MVccEngPsPropertyListenerObserver* observer = iObservers[i]; |
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191 |
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192 if ( observer ) |
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193 { |
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194 observer->PropertyChangedL( iCategoryId, iKeyId, value ); |
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195 } |
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196 } |
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197 } |