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1 /* |
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2 * Copyright (c) 2004 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 of the RoomLevel effect message handler class. |
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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 FILES |
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21 #include "RoomLevelMessageHandler.h" |
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22 #include "RoomLevelMessageTypes.h" |
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23 #include <RoomLevelBase.h> |
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24 #include "EffectDataQueItem.h" |
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25 #include <RoomLevelBase.h> |
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26 #ifdef _DEBUG |
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27 #include <e32svr.h> |
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28 #endif |
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29 |
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30 // ================= MEMBER FUNCTIONS ======================= |
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31 |
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32 // C++ default constructor can NOT contain any code, that |
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33 // might leave. |
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34 // |
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35 CRoomLevelMessageHandler::CRoomLevelMessageHandler( |
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36 CRoomLevel* aRoomLevel ) |
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37 : CMMFObject(KUidRoomLevelEffect), |
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38 iRoomLevel(NULL), |
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39 iMessage(NULL), |
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40 iRegistered(EFalse), |
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41 iEffectDataQue(NULL) |
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42 { |
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43 iRoomLevel = aRoomLevel; |
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44 } |
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45 |
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46 |
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47 EXPORT_C CRoomLevelMessageHandler* CRoomLevelMessageHandler::NewL( |
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48 TAny* aCustomInterface ) |
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49 { |
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50 CRoomLevel* roomLevel = (CRoomLevel*)aCustomInterface; |
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51 CRoomLevelMessageHandler* self = new (ELeave) CRoomLevelMessageHandler(roomLevel); |
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52 self->ConstructL(); |
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53 return self; |
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54 } |
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55 |
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56 |
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57 // ----------------------------------------------------------------------------- |
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58 // CRoomLevelMessageHandler::ConstructL |
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59 // Symbian 2nd phase constructor can leave. |
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60 // Create and initializes the effect data queue. |
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61 // ----------------------------------------------------------------------------- |
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62 // |
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63 void CRoomLevelMessageHandler::ConstructL() |
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64 { |
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65 iEffectDataQue = new(ELeave) TSglQue<CEffectDataQueItem>(_FOFF(CEffectDataQueItem, iLink)); |
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66 } |
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67 |
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68 |
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69 // ----------------------------------------------------------------------------- |
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70 // CRoomLevelMessageHandler::~CRoomLevelMessageHandler |
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71 // Before going away, unregister with the CI RoomLevel object. |
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72 // The observation message must be completed if outstanding. |
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73 // The effect data queue must be emptied and destroyed. |
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74 // ----------------------------------------------------------------------------- |
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75 // |
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76 CRoomLevelMessageHandler::~CRoomLevelMessageHandler() |
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77 { |
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78 |
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79 #ifdef _DEBUG |
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80 RDebug::Print(_L("CRoomLevelMessageHandler::~CRoomLevelMessageHandler")); |
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81 #endif |
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82 if(iRoomLevel) |
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83 iRoomLevel->UnRegisterObserver(*this); |
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84 iRegistered = EFalse; |
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85 |
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86 if(iMessage) |
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87 { |
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88 if ( !iMessage->IsCompleted() ) |
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89 { |
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90 iMessage->Complete(KErrCancel); |
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91 delete iMessage; |
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92 } |
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93 } |
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94 |
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95 if ( iEffectDataQue ) |
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96 { |
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97 CEffectDataQueItem* queItem; |
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98 while ( !iEffectDataQue->IsEmpty() ) |
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99 { |
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100 queItem = iEffectDataQue->First(); |
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101 iEffectDataQue->Remove(*queItem); |
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102 delete queItem; |
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103 } |
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104 |
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105 delete iEffectDataQue; |
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106 } |
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107 |
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108 delete iRoomLevel; |
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109 |
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110 } |
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111 |
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112 |
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113 // --------------------------------------------------------- |
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114 // CRoomLevelMessageHandler::HandleRequest |
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115 // (other items were commented in a header). |
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116 // --------------------------------------------------------- |
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117 // |
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118 void CRoomLevelMessageHandler::HandleRequest( |
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119 TMMFMessage& aMessage ) |
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120 { |
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121 ASSERT(aMessage.Destination().InterfaceId() == KUidRoomLevelEffect); |
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122 TRAPD(error,DoHandleRequestL(aMessage)); |
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123 if ( error ) |
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124 { |
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125 aMessage.Complete(error); |
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126 } |
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127 } |
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128 |
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129 // --------------------------------------------------------- |
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130 // CRoomLevelMessageHandler::DoHandleRequestL |
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131 // Dispatches the message to the appropriate handler. |
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132 // --------------------------------------------------------- |
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133 // |
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134 void CRoomLevelMessageHandler::DoHandleRequestL( |
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135 TMMFMessage& aMessage ) |
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136 { |
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137 switch( aMessage.Function() ) |
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138 { |
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139 case ERoomInitialize: |
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140 { |
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141 DoInitializeL(aMessage); |
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142 break; |
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143 } |
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144 case ERoomApply: |
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145 { |
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146 DoApplyL(aMessage); |
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147 break; |
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148 } |
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149 case ERoomObserve: |
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150 { |
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151 DoObserveL(aMessage); |
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152 break; |
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153 } |
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154 default: |
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155 { |
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156 aMessage.Complete(KErrNotSupported); |
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157 } |
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158 } |
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159 } |
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160 |
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161 // --------------------------------------------------------- |
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162 // CRoomLevelMessageHandler::DoInitializeL |
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163 // --------------------------------------------------------- |
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164 // |
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165 void CRoomLevelMessageHandler::DoInitializeL(TMMFMessage& aMessage) |
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166 { |
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167 #ifdef _DEBUG |
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168 RDebug::Print(_L("CRoomLevelMessageHandler::DoInitializeL")); |
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169 #endif |
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170 aMessage.WriteDataToClient(iRoomLevel->DoEffectData()); |
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171 aMessage.Complete(KErrNone); |
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172 } |
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173 |
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174 // --------------------------------------------------------- |
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175 // CRoomLevelMessageHandler::DoApplyL |
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176 // Extracts the data from the message. The client RoomLevel |
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177 // data is applied to the CI RoomLevel object. |
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178 // --------------------------------------------------------- |
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179 // |
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180 void CRoomLevelMessageHandler::DoApplyL( |
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181 TMMFMessage& aMessage ) |
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182 { |
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183 #ifdef _DEBUG |
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184 RDebug::Print(_L("CRoomLevelMessageHandler::DoApplyL")); |
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185 #endif |
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186 TEfRoomLevelDataPckg RoomLevelPckgFromClient; |
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187 aMessage.ReadData1FromClient(RoomLevelPckgFromClient); |
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188 iRoomLevel->SetEffectData(RoomLevelPckgFromClient); |
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189 iRoomLevel->ApplyL(); |
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190 aMessage.Complete(KErrNone); |
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191 } |
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192 |
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193 // --------------------------------------------------------- |
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194 // CRoomLevelMessageHandler::DoObserveL |
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195 // Receives the observation request message and depending |
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196 // on the status of the effect data queue, the message is |
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197 // completed immediately or saved for later completion. |
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198 // --------------------------------------------------------- |
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199 // |
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200 void CRoomLevelMessageHandler::DoObserveL( |
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201 TMMFMessage& aMessage ) |
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202 { |
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203 |
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204 #ifdef _DEBUG |
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205 RDebug::Print(_L("CRoomLevelMessageHandler::DoObserveL")); |
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206 #endif |
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207 |
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208 if ( !iRegistered ) |
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209 { |
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210 iRoomLevel->RegisterObserverL(*this); |
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211 iRegistered = ETrue; |
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212 } |
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213 |
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214 if ( iEffectDataQue->IsEmpty() ) |
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215 { |
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216 //iMessage = &aMessage; |
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217 iMessage = new(ELeave) TMMFMessage(aMessage); |
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218 } |
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219 else |
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220 { |
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221 TEfRoomLevelDataPckg dataPckg; |
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222 CEffectDataQueItem* item = iEffectDataQue->First(); |
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223 dataPckg.Copy(item->EffectData()); |
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224 aMessage.WriteDataToClient(dataPckg); |
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225 aMessage.Complete(KErrNone); |
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226 iEffectDataQue->Remove(*item); |
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227 delete item; |
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228 } |
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229 } |
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230 |
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231 // --------------------------------------------------------- |
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232 // CRoomLevelMessageHandler::EffectChanged |
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233 // The CI RoomLevel object has changed state. |
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234 // The observation message is completed if no data has been |
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235 // queued up. Otherwise, the CI RoomLevel object's data is |
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236 // packaged and queued. |
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237 // --------------------------------------------------------- |
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238 // |
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239 void CRoomLevelMessageHandler::EffectChanged( |
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240 const CAudioEffect* aAudioEffect, |
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241 TUint8 /*aEvent*/ ) |
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242 { |
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243 #ifdef _DEBUG |
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244 RDebug::Print(_L("CRoomLevelMessageHandler::EffectChanged")); |
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245 #endif |
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246 |
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247 if ( iMessage && !iMessage->IsCompleted() && iEffectDataQue->IsEmpty() ) |
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248 { |
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249 iMessage->WriteDataToClient(((CRoomLevel*)aAudioEffect)->DoEffectData()); |
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250 iMessage->Complete(KErrNone); |
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251 delete iMessage; |
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252 iMessage = NULL; |
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253 } |
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254 else |
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255 { |
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256 // Saves the data and complete an observation message next time around. |
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257 HBufC8* data = NULL; |
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258 TRAPD(err1,data = ((CRoomLevel*)aAudioEffect)->DoEffectData().AllocL()); |
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259 if(!err1) |
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260 { |
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261 //CleanupStack::PushL(data); |
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262 CEffectDataQueItem* item = NULL; |
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263 TRAPD(err2,item = CEffectDataQueItem::NewL(data)); |
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264 if(!err2) |
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265 { |
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266 iEffectDataQue->AddLast(*item); |
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267 } |
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268 else |
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269 { |
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270 delete data; |
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271 } |
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272 } |
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273 else |
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274 { |
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275 #ifdef _DEBUG |
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276 RDebug::Print(_L("CRoomLevelMessageHandler::EffectChanged Error Allocating Memory %d"),err1); |
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277 #endif |
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278 } |
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279 } |
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280 |
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281 } |
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282 |
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283 |
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284 // ========================== OTHER EXPORTED FUNCTIONS ========================= |
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285 |
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286 |
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287 // End of File |