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1 // Copyright (c) 2006-2009 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 // |
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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 FILES |
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20 #include "HWRMPrivatePSKeys.h" |
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21 #include "HWRMtrace.h" |
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22 #include "HWRMExtendedLight.h" |
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23 #include "HWRMExtendedLightStatusObserver.h" |
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24 #include "HWRMLightClientServer.h" // for KHWRMLightMaxTargets |
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25 |
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26 // CONSTANTS |
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27 |
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28 // ============================ MEMBER FUNCTIONS =============================== |
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29 |
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30 // ----------------------------------------------------------------------------- |
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31 // CHWRMExtendedLightStatusObserver::CHWRMExtendedLightStatusObserver |
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32 // C++ constructor can NOT contain any code, that |
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33 // might leave. |
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34 // ----------------------------------------------------------------------------- |
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35 // |
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36 CHWRMExtendedLightStatusObserver::CHWRMExtendedLightStatusObserver(MHWRMExtendedLightObserver* aCallback, |
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37 TInt aSupportedTargets) |
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38 : CActive(EPriorityStandard), |
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39 iCallback(aCallback), |
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40 iSupportedTargets(aSupportedTargets) |
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41 { |
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42 COMPONENT_TRACE2(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::CHWRMExtendedLightStatusObserver(0x%x)" ), aCallback); |
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43 |
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44 CActiveScheduler::Add(this); |
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45 |
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46 COMPONENT_TRACE1(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::CHWRMExtendedLightStatusObserver - return" ) ); |
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47 } |
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48 |
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49 // ----------------------------------------------------------------------------- |
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50 // CHWRMExtendedLightStatusObserver::NewL |
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51 // Two-phased constructor |
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52 // ----------------------------------------------------------------------------- |
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53 // |
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54 CHWRMExtendedLightStatusObserver* CHWRMExtendedLightStatusObserver::NewL(MHWRMExtendedLightObserver* aCallback, |
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55 TInt aSupportedTargets) |
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56 { |
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57 |
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58 COMPONENT_TRACE2(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::NewL(0x%x)" ), aCallback); |
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59 |
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60 CHWRMExtendedLightStatusObserver* newInstance = new (ELeave) CHWRMExtendedLightStatusObserver(aCallback, aSupportedTargets); |
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61 |
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62 CleanupStack::PushL( newInstance ); |
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63 |
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64 newInstance->ConstructL(); |
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65 |
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66 CleanupStack::Pop(); |
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67 |
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68 COMPONENT_TRACE2(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::NewL - return 0x%x" ), newInstance ); |
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69 |
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70 return newInstance; |
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71 } |
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72 |
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73 |
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74 // ----------------------------------------------------------------------------- |
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75 // Destructor |
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76 // ----------------------------------------------------------------------------- |
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77 // |
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78 CHWRMExtendedLightStatusObserver::~CHWRMExtendedLightStatusObserver() |
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79 { |
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80 COMPONENT_TRACE1(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::~CHWRMExtendedLightStatusObserver()" )); |
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81 |
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82 // Cancel property separately, as the following Cancel() call doesn't seem to |
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83 // cause DoCancel to fire. |
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84 iProperty.Cancel(); |
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85 |
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86 Cancel(); |
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87 |
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88 iProperty.Close(); |
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89 |
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90 iLastStatusValue.Close(); |
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91 iStatusUnknownList.Close(); |
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92 iCallback = NULL; // PCLint demands |
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93 |
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94 COMPONENT_TRACE1(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::~CHWRMExtendedLightStatusObserver - return" ) ); |
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95 } |
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96 |
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97 // ----------------------------------------------------------------------------- |
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98 // CHWRMExtendedLightStatusObserver::ConstructL |
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99 // Symbian 2nd phase constructor can leave. |
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100 // ----------------------------------------------------------------------------- |
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101 // |
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102 void CHWRMExtendedLightStatusObserver::ConstructL() |
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103 { |
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104 COMPONENT_TRACE1(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::ConstructL()" )); |
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105 |
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106 User::LeaveIfError( InitializeStatusArray( iLastStatusValue ) ); |
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107 User::LeaveIfError( InitializeStatusArray( iStatusUnknownList ) ); |
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108 User::LeaveIfError(iProperty.Attach(KPSUidHWResourceNotification, KHWRMLightStatus)); |
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109 |
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110 // Call RunL to order notification and do the initial notifying of the client |
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111 RunL(); |
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112 |
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113 COMPONENT_TRACE1(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::ConstructL - return" ) ); |
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114 } |
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115 |
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116 // ----------------------------------------------------------------------------- |
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117 // CHWRMExtendedLightStatusObserver::RunL |
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118 // Handle notification from pubsub session. |
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119 // ----------------------------------------------------------------------------- |
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120 // |
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121 void CHWRMExtendedLightStatusObserver::RunL() |
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122 { |
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123 COMPONENT_TRACE1(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::RunL()" )); |
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124 |
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125 // Reorder notification |
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126 OrderNotification(); |
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127 |
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128 // get value from pubsub |
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129 RLightStatusArray statusArray( KHWRMLightMaxTargets ); |
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130 CleanupClosePushL( statusArray ); |
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131 TInt err = InitializeStatusArray( statusArray ); |
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132 if( err == KErrNone ) |
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133 { |
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134 TInt arraySize = sizeof( THWRMStatusInfo ) * KHWRMLightMaxTargets; |
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135 TPtr8 arrayPtr( ( TUint8* )&statusArray[0], arraySize, arraySize ); |
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136 err = iProperty.Get( arrayPtr ); |
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137 if ( err == KErrNotFound || err == KErrNone ) |
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138 { |
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139 NotifyCallback( statusArray ); |
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140 } |
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141 } |
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142 |
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143 else |
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144 { |
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145 COMPONENT_TRACE2(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::RunL. Error (%d) in iProperty.Get()" ), err); |
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146 NotifyCallback(iStatusUnknownList ); |
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147 } |
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148 |
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149 CleanupStack::PopAndDestroy( &statusArray ); |
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150 User::LeaveIfError( err ); |
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151 |
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152 COMPONENT_TRACE1(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::RunL - return" ) ); |
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153 } |
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154 |
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155 // ----------------------------------------------------------------------------- |
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156 // CHWRMExtendedLightStatusObserver::DoCancel |
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157 // Handle cancel order on this active object. |
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158 // ----------------------------------------------------------------------------- |
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159 // |
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160 void CHWRMExtendedLightStatusObserver::DoCancel() |
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161 { |
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162 COMPONENT_TRACE1(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::DoCancel()" )); |
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163 |
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164 iProperty.Cancel(); |
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165 |
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166 COMPONENT_TRACE1(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::DoCancel - return" ) ); |
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167 } |
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168 |
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169 // ----------------------------------------------------------------------------- |
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170 // CHWRMExtendedLightStatusObserver::OrderNotification |
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171 // Order new notification from CenRep. |
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172 // ----------------------------------------------------------------------------- |
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173 // |
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174 void CHWRMExtendedLightStatusObserver::OrderNotification() |
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175 { |
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176 COMPONENT_TRACE1(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::OrderNotification()" )); |
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177 |
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178 iProperty.Subscribe(iStatus); |
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179 SetActive(); |
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180 |
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181 COMPONENT_TRACE1(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::OrderNotification - return" ) ); |
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182 } |
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183 |
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184 |
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185 // ----------------------------------------------------------------------------- |
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186 // CHWRMExtendedLightStatusObserver::NotifyCallback |
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187 // Order new notification from CenRep. |
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188 // ----------------------------------------------------------------------------- |
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189 // |
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190 void CHWRMExtendedLightStatusObserver::NotifyCallback( RLightStatusArray& aStatusList ) |
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191 { |
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192 COMPONENT_TRACE1( ( _L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::NotifyCallback" ) ) ); |
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193 |
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194 |
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195 // Loop through value and update client. Hold notifying client until end unless there are |
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196 // multiple differently changed target statuses. |
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197 TInt currentTarget = KHWRMLightFirstTarget; |
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198 TInt currentStatus = 0; |
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199 TInt lastChangedStatus = 0; |
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200 TInt index = 0; |
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201 for( TInt i = 0; i < KHWRMLightMaxTargets; i++ ) |
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202 { |
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203 // only notify for supported targets |
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204 if( currentTarget & iSupportedTargets ) |
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205 { |
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206 index = aStatusList.FindInOrder( currentTarget, FindByTarget ); |
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207 if( index >= 0 && index < KHWRMLightMaxTargets ) |
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208 { |
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209 currentStatus = aStatusList[index].iStatus; |
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210 index = iLastStatusValue.FindInOrder( currentTarget, FindByTarget ); |
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211 if( index >= 0 && index < KHWRMLightMaxTargets ) |
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212 { |
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213 lastChangedStatus = iLastStatusValue[index].iStatus; |
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214 // If last value for masked target is different than new value, prepare to notify about that target |
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215 if( lastChangedStatus != currentStatus ) |
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216 { |
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217 // update last status value and notify client |
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218 iLastStatusValue[index].iStatus = currentStatus; |
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219 if( iCallback ) |
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220 { |
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221 iCallback->LightStatusChanged( currentTarget, |
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222 static_cast<CHWRMExtendedLight::TLightStatus>( currentStatus ) ); |
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223 } |
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224 } |
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225 } |
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226 } |
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227 } |
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228 |
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229 // shift the target ready for next loop |
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230 currentTarget <<= 1; |
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231 } |
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232 |
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233 COMPONENT_TRACE1(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::NotifyCallback - return" ) ); |
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234 |
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235 } |
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236 |
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237 // ----------------------------------------------------------------------------- |
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238 // CHWRMExtendedLightStatusObserver::CurrentStatus |
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239 // Return Light status |
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240 // ----------------------------------------------------------------------------- |
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241 // |
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242 CHWRMExtendedLight::TLightStatus CHWRMExtendedLightStatusObserver::CurrentStatus(TInt aTarget) const |
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243 { |
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244 COMPONENT_TRACE2(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::CurrentStatus(0x%x)" ), aTarget ); |
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245 |
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246 CHWRMExtendedLight::TLightStatus status( CHWRMExtendedLight::ELightStatusUnknown ); |
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247 RLightStatusArray currentStatus( KHWRMLightMaxTargets ); |
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248 TInt err = InitializeStatusArray( currentStatus ); |
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249 if ( err == KErrNone ) |
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250 { |
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251 TInt arraySize = sizeof( THWRMStatusInfo ) * KHWRMLightMaxTargets; |
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252 TPtr8 arrayPtr( ( TUint8* )¤tStatus[0], arraySize, arraySize ); |
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253 err = RProperty::Get( KPSUidHWResourceNotification, KHWRMLightStatus, arrayPtr ); |
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254 if( err == KErrNone ) |
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255 { |
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256 TInt index = currentStatus.FindInOrder( aTarget, FindByTarget ); |
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257 if( index >= 0 && index < KHWRMLightMaxTargets ) |
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258 { |
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259 status = static_cast<CHWRMExtendedLight::TLightStatus>( |
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260 currentStatus[index].iStatus ); |
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261 } |
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262 } |
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263 } |
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264 |
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265 // Clean up |
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266 currentStatus.Close(); |
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267 |
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268 COMPONENT_TRACE2(_L( "HWRM ExtendedLightClient - CHWRMExtendedLightStatusObserver::CurrentStatus - return 0x%x" ), status ); |
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269 |
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270 return status; |
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271 } |
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272 |
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273 // ----------------------------------------------------------------------------- |
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274 // CHWRMLightExtendedStatusObserver::FindByTarget |
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275 // Finds item from iStatusList by target. |
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276 // ----------------------------------------------------------------------------- |
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277 // |
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278 TInt CHWRMExtendedLightStatusObserver::FindByTarget( const TInt* aTarget, |
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279 const THWRMStatusInfo& aItem ) |
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280 { |
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281 if ( *aTarget < aItem.iTarget ) |
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282 { |
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283 return -1; |
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284 } |
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285 else if ( *aTarget > aItem.iTarget ) |
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286 { |
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287 return 1; |
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288 } |
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289 |
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290 return 0; |
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291 } |
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292 // ----------------------------------------------------------------------------- |
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293 // CHWRMLightStatusObserver::InitializeStatusArray |
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294 // Initializes RLightStatusArray. |
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295 // ----------------------------------------------------------------------------- |
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296 // |
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297 TInt CHWRMExtendedLightStatusObserver::InitializeStatusArray( |
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298 RLightStatusArray& aArray ) const |
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299 { |
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300 TInt err = KErrNone; |
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301 TInt currentTarget( KHWRMLightFirstTarget ); |
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302 for( TInt i = 0; i < KHWRMLightMaxTargets; i++ ) |
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303 { |
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304 THWRMStatusInfo info; |
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305 info.iTarget = currentTarget; |
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306 info.iStatus = CHWRMLight::ELightStatusUnknown; |
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307 err = aArray.Append( info ); |
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308 if( err != KErrNone ) |
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309 { |
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310 break; |
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311 } |
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312 |
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313 // shift the mask and target ready for next loop |
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314 currentTarget <<= 1; |
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315 } |
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316 |
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317 return err; |
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318 } |
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319 |
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320 // End of File |