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1 /* |
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2 * Copyright (c) 2005 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: Implementation for the Back Stepping Service wrapper |
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15 * |
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16 */ |
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17 |
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18 #include <liwcommon.h> |
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19 #include <liwservicehandler.h> |
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20 #include <mmf/common/mmfcontrollerpluginresolver.h> |
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21 |
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22 #include "fmradiobacksteppingservicewrapper.h" |
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23 |
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24 _LIT8( KFMRadioBackSteppingPrefix, "FMRADIOBS" ); |
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25 |
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26 // BS Service implementation UID |
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27 //const TInt KBSServiceImplUid( 0x2000F840 ); |
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28 |
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29 // BS Service and Interface ID |
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30 _LIT8( KFMRadioBSServiceID, "Service.BackStepping" ); |
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31 _LIT8( KFMRadioBSInterface, "IBackStepping" ); |
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32 |
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33 // BS commands |
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34 _LIT8( KFMRadioBSCmdInitialize, "Initialize" ); |
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35 _LIT8( KFMRadioBSCmdForwardActivationEvent, "ForwardActivationEvent" ); |
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36 _LIT8( KFMRadioBSCmdHandleBackCommand, "HandleBackCommand" ); |
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37 |
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38 // BS in param names |
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39 _LIT8( KFMRadioBSInParamAppUid, "AppUid" ); |
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40 _LIT8( KFMRadioBSInParamState, "State" ); |
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41 _LIT8( KFMRadioBSInParamEnter, "Enter" ); |
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42 |
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43 // BS out param names |
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44 _LIT8( KFMRadioBSOutParamStatusInfo, "StatusInfo" ); |
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45 |
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46 // ======== MEMBER FUNCTIONS ================================================= |
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47 |
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48 // --------------------------------------------------------------------------- |
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49 // CFMRadioBackSteppingServiceWrapper::NewL |
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50 // --------------------------------------------------------------------------- |
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51 // |
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52 CFMRadioBackSteppingServiceWrapper* CFMRadioBackSteppingServiceWrapper::NewL( TUid aUid ) |
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53 { |
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54 CFMRadioBackSteppingServiceWrapper* self = new( ELeave ) CFMRadioBackSteppingServiceWrapper; |
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55 CleanupStack::PushL( self ); |
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56 self->ConstructL( aUid ); |
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57 CleanupStack::Pop( self ); |
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58 return self; |
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59 } |
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60 |
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61 |
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62 // --------------------------------------------------------------------------- |
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63 // CFMRadioBackSteppingServiceWrapper::CFMRadioBackSteppingServiceWrapper |
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64 // --------------------------------------------------------------------------- |
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65 // |
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66 CFMRadioBackSteppingServiceWrapper::CFMRadioBackSteppingServiceWrapper() |
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67 { |
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68 } |
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69 |
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70 // --------------------------------------------------------------------------- |
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71 // CFMRadioBackSteppingServiceWrapper::ConstructL |
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72 // --------------------------------------------------------------------------- |
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73 // |
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74 void CFMRadioBackSteppingServiceWrapper::ConstructL( TUid aUid ) |
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75 { |
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76 // Create Service Handler and keep as long as access to BS Service needed. |
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77 iServiceHandler = CLiwServiceHandler::NewL(); |
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78 // For convenience keep pointers to Service Handler param lists. |
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79 iInParamList = &iServiceHandler->InParamListL(); |
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80 iOutParamList = &iServiceHandler->OutParamListL(); |
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81 |
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82 // Create AIW criteria. |
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83 RCriteriaArray criteriaArray; |
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84 CleanupResetAndDestroyPushL( criteriaArray ); |
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85 CLiwCriteriaItem* criterion = CLiwCriteriaItem::NewLC( |
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86 KLiwCmdAsStr, |
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87 KFMRadioBSInterface, |
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88 KFMRadioBSServiceID ); |
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89 criterion->SetServiceClass( TUid::Uid( KLiwClassBase ) ); |
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90 criteriaArray.AppendL( criterion ); |
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91 CleanupStack::Pop( criterion ); |
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92 |
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93 // Attach AIW criteria. |
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94 iServiceHandler->AttachL( criteriaArray ); |
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95 // Get BS Service interface. |
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96 iServiceHandler->ExecuteServiceCmdL( *criterion, *iInParamList, *iOutParamList ); |
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97 CleanupStack::PopAndDestroy( &criteriaArray ); |
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98 |
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99 // Check if BS interface can be found from output params. |
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100 TInt pos( 0 ); |
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101 iOutParamList->FindFirst( pos, KFMRadioBSInterface ); |
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102 if( KErrNotFound != pos ) |
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103 { |
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104 // Extract BS interface from output params. |
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105 iBsInterface = ( *iOutParamList )[pos].Value().AsInterface(); |
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106 } |
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107 |
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108 // Initialize BS Service. |
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109 InitializeL( aUid ); |
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110 } |
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111 |
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112 // --------------------------------------------------------------------------- |
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113 // CFMRadioBackSteppingServiceWrapper::~CFMRadioBackSteppingServiceWrapper |
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114 // --------------------------------------------------------------------------- |
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115 // |
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116 CFMRadioBackSteppingServiceWrapper::~CFMRadioBackSteppingServiceWrapper() |
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117 { |
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118 if ( iBsInterface ) |
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119 { |
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120 iBsInterface->Close(); |
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121 } |
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122 if ( iServiceHandler ) |
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123 { |
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124 delete iServiceHandler; |
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125 } |
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126 } |
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127 |
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128 // --------------------------------------------------------------------------- |
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129 // CFMRadioBackSteppingServiceWrapper::HandleViewActivationEventL |
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130 // --------------------------------------------------------------------------- |
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131 // |
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132 void CFMRadioBackSteppingServiceWrapper::HandleViewActivationEventL( const TVwsViewId aViewId, |
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133 TBool aEnter ) |
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134 { |
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135 if ( iBsInterface ) |
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136 { |
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137 // Make Service Handler param lists. |
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138 iInParamList->Reset(); |
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139 iOutParamList->Reset(); |
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140 |
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141 RBuf8 buffer; |
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142 CleanupClosePushL( buffer ); |
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143 buffer.CreateL( KFMRadioBackSteppingPrefix().Length() + KDefaultRealWidth ); |
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144 buffer.Copy( KFMRadioBackSteppingPrefix ); |
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145 // Convert 32-bit signed integer (TInt32) view uid to TInt. |
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146 TInt64 viewUid = static_cast< TInt64 >( aViewId.iViewUid.iUid ); |
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147 buffer.AppendNum( viewUid ); |
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148 |
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149 TLiwGenericParam state( KFMRadioBSInParamState, TLiwVariant( buffer ) ); |
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150 iInParamList->AppendL( state ); |
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151 TLiwGenericParam enter( KFMRadioBSInParamEnter, TLiwVariant( aEnter ) ); |
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152 iInParamList->AppendL( enter ); |
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153 |
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154 // Execute view activation event. |
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155 iBsInterface->ExecuteCmdL( KFMRadioBSCmdForwardActivationEvent, *iInParamList, *iOutParamList ); |
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156 CleanupStack::PopAndDestroy(); |
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157 |
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158 // Check if BS Service consumed the event. |
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159 HandleResultL(); |
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160 |
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161 iInParamList->Reset(); |
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162 iOutParamList->Reset(); |
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163 } |
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164 } |
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165 |
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166 |
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167 // --------------------------------------------------------------------------- |
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168 // CFMRadioBackSteppingServiceWrapper::HandleBackCommandL |
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169 // --------------------------------------------------------------------------- |
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170 // |
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171 TBool CFMRadioBackSteppingServiceWrapper::HandleBackCommandL( const TVwsViewId aViewId ) |
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172 { |
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173 TBool retVal = EFalse; |
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174 if ( iBsInterface ) |
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175 { |
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176 // Make Service Handler param lists. |
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177 iInParamList->Reset(); |
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178 iOutParamList->Reset(); |
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179 |
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180 // Create message for back stepping wrapper to handle back command event. |
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181 RBuf8 buffer; |
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182 CleanupClosePushL( buffer ); |
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183 buffer.CreateL( KFMRadioBackSteppingPrefix().Length() + KDefaultRealWidth ); |
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184 buffer.Copy( KFMRadioBackSteppingPrefix ); |
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185 // Convert 32-bit signed integer (TInt32) view uid to TInt64. |
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186 TInt64 viewUid = static_cast< TInt64 >( aViewId.iViewUid.iUid ); |
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187 buffer.AppendNum( viewUid ); |
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188 |
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189 TLiwGenericParam state( KFMRadioBSInParamState, TLiwVariant( buffer ) ); |
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190 iInParamList->AppendL( state ); |
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191 |
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192 // Execute back event. |
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193 iBsInterface->ExecuteCmdL( KFMRadioBSCmdHandleBackCommand, *iInParamList, *iOutParamList ); |
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194 CleanupStack::PopAndDestroy(); |
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195 |
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196 // Check if BS Service consumes the event. |
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197 retVal = HandleResultL(); |
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198 |
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199 iInParamList->Reset(); |
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200 iOutParamList->Reset(); |
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201 } |
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202 |
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203 return retVal; |
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204 } |
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205 |
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206 // --------------------------------------------------------------------------- |
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207 // CFMRadioBackSteppingServiceWrapper::InitializeL |
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208 // --------------------------------------------------------------------------- |
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209 // |
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210 void CFMRadioBackSteppingServiceWrapper::InitializeL( const TUid aUid ) |
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211 { |
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212 if ( iBsInterface ) |
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213 { |
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214 // Initialize BS Service. |
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215 iInParamList->Reset(); |
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216 iOutParamList->Reset(); |
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217 |
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218 TLiwGenericParam appUid( KFMRadioBSInParamAppUid, TLiwVariant( aUid.iUid ) ); |
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219 iInParamList->AppendL( appUid ); |
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220 |
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221 iBsInterface->ExecuteCmdL( KFMRadioBSCmdInitialize, *iInParamList, *iOutParamList ); |
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222 |
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223 if ( !HandleResultL() ) |
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224 { |
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225 // Initialize command was not consumed. |
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226 User::Leave( KErrArgument ); |
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227 } |
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228 |
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229 iInParamList->Reset(); |
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230 iOutParamList->Reset(); |
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231 } |
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232 } |
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233 |
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234 // --------------------------------------------------------------------------- |
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235 // CFMRadioBackSteppingServiceWrapper::HandleResultL |
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236 // --------------------------------------------------------------------------- |
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237 // |
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238 TInt CFMRadioBackSteppingServiceWrapper::HandleResultL() |
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239 { |
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240 TBool retVal( EFalse ); |
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241 // Check if error can be found from outparams. |
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242 TInt posErr( 0 ); |
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243 iOutParamList->FindFirst( posErr, LIW::EGenericParamError ); |
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244 if( KErrNotFound != posErr ) |
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245 { |
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246 // Error code found - extract and handle |
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247 TInt errorCode( KErrNone ); |
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248 ( *iOutParamList )[posErr].Value().Get( errorCode ); |
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249 User::LeaveIfError( errorCode ); |
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250 } |
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251 // No errors found. Check if status info can be found from outparams. |
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252 TInt posStat( 0 ); |
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253 iOutParamList->FindFirst( posStat, KFMRadioBSOutParamStatusInfo ); |
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254 if( KErrNotFound != posStat ) |
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255 { |
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256 // Status info present - extract. |
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257 ( *iOutParamList )[posStat].Value().Get( retVal ); |
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258 } |
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259 else |
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260 { |
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261 // No status info found. |
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262 User::Leave( KErrNotFound ); |
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263 } |
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264 return retVal; |
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265 } |
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266 |
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267 // --------------------------------------------------------------------------- |
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268 // CFMRadioBackSteppingServiceWrapper::HandleViewActivation |
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269 // --------------------------------------------------------------------------- |
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270 // |
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271 void CFMRadioBackSteppingServiceWrapper::HandleViewActivation( const TVwsViewId& aNewlyActivatedViewId, |
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272 const TVwsViewId& /*aViewIdToBeDeactivated*/ ) |
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273 { |
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274 TRAP_IGNORE( HandleViewActivationEventL( aNewlyActivatedViewId, ETrue ) ) |
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275 } |