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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 Loudness proxy 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 |
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21 // INCLUDE FILES |
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22 |
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23 #ifdef _DEBUG |
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24 #include <e32svr.h> |
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25 #endif |
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26 |
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27 #include "LoudnessProxy.h" |
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28 #include "LoudnessEventObserver.h" |
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29 #include <CustomInterfaceUtility.h> |
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30 |
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31 |
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32 // ============================ MEMBER FUNCTIONS =============================== |
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33 |
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34 // ----------------------------------------------------------------------------- |
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35 // CLoudnessProxy::CLoudnessProxy |
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36 // C++ default constructor can NOT contain any code, that |
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37 // might leave. |
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38 // ----------------------------------------------------------------------------- |
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39 // |
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40 CLoudnessProxy::CLoudnessProxy( |
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41 TMMFMessageDestinationPckg aMessageHandler, |
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42 MCustomCommand& aCustomCommand, |
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43 CCustomInterfaceUtility* aCustomInterfaceUtility ) |
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44 : iCustomCommand(&aCustomCommand), |
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45 iMessageHandler(aMessageHandler), |
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46 iCustomInterfaceUtility(aCustomInterfaceUtility) |
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47 |
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48 { |
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49 } |
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50 |
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51 // Destructor |
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52 CLoudnessProxy::~CLoudnessProxy() |
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53 { |
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54 // Remove the custom interface message handler before we destroy the proxy. |
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55 if(iCustomInterfaceUtility) |
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56 iCustomInterfaceUtility->RemoveCustomInterface(iMessageHandler); |
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57 delete iLoudnessEventObserver; |
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58 delete iCustomInterfaceUtility; |
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59 } |
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60 |
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61 // ----------------------------------------------------------------------------- |
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62 // CLoudnessProxy::NewL |
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63 // Static function for creating an instance of the Loudness object. |
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64 // ----------------------------------------------------------------------------- |
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65 // |
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66 EXPORT_C CLoudnessProxy* CLoudnessProxy::NewL( |
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67 TMMFMessageDestinationPckg aMessageHandler, |
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68 MCustomCommand& aCustomCommand, |
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69 CCustomInterfaceUtility* aCustomInterfaceUtility ) |
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70 { |
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71 CLoudnessProxy* self = new (ELeave) CLoudnessProxy(aMessageHandler, aCustomCommand, aCustomInterfaceUtility); |
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72 CleanupStack::PushL(self); |
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73 self->ConstructL(); |
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74 CleanupStack::Pop(self); |
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75 return self; |
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76 } |
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77 |
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78 // ----------------------------------------------------------------------------- |
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79 // CLoudnessProxy::ConstructL |
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80 // ----------------------------------------------------------------------------- |
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81 // |
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82 void CLoudnessProxy::ConstructL() |
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83 { |
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84 #ifdef _DEBUG |
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85 RDebug::Print(_L("CLoudnessProxy::ConstructL")); |
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86 #endif |
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87 iLoudnessEventObserver = CLoudnessEventObserver::NewL(iMessageHandler, *iCustomCommand, *this); |
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88 StartObserver(); |
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89 // sends a message to fetch initial data. |
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90 TEfLoudnessDataPckg dataPckgFrom; |
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91 iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)ELefInitialize, KNullDesC8, KNullDesC8, dataPckgFrom); |
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92 SetEffectData(dataPckgFrom); |
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93 } |
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94 |
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95 |
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96 // ----------------------------------------------------------------------------- |
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97 // CLoudnessProxy::ApplyL |
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98 // Apply the Loudness settings. |
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99 // ----------------------------------------------------------------------------- |
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100 // |
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101 EXPORT_C void CLoudnessProxy::ApplyL() |
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102 { |
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103 #ifdef _DEBUG |
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104 RDebug::Print(_L("CLoudnessProxy::Apply")); |
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105 #endif |
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106 |
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107 if ( !iHaveUpdateRights ) |
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108 { |
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109 User::Leave(KErrAccessDenied); |
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110 } |
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111 |
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112 iLoudnessData.iEnabled = iEnabled; |
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113 iLoudnessData.iEnforced = iEnforced; |
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114 iLoudnessData.iHaveUpdateRights = iHaveUpdateRights; |
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115 iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)ELefApply, DoEffectData(), KNullDesC8); |
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116 } |
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117 |
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118 // ----------------------------------------------------------------------------- |
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119 // CLoudnessProxy::StartObserver |
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120 // Starts the event observer. The event observer monitors asynchronous events |
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121 // from the message handler. |
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122 // ----------------------------------------------------------------------------- |
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123 // |
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124 void CLoudnessProxy::StartObserver() |
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125 { |
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126 #ifdef _DEBUG |
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127 RDebug::Print(_L("CLoudnessProxy::StartObserver")); |
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128 #endif |
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129 |
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130 iLoudnessEventObserver->Start(); |
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131 } |
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132 |
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133 // ----------------------------------------------------------------------------- |
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134 // CLoudnessProxy::LoudnessEvent |
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135 // Checks which data member has changed and notify the observers. |
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136 // ----------------------------------------------------------------------------- |
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137 // |
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138 void CLoudnessProxy::LoudnessEvent( |
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139 const TDesC8& aBuffer ) |
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140 { |
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141 #ifdef _DEBUG |
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142 RDebug::Print(_L("CLoudnessProxy::LoudnessEvent")); |
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143 #endif |
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144 |
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145 TEfLoudnessDataPckg dataPckgFrom; |
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146 dataPckgFrom.Copy(aBuffer); |
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147 TEfLoudnessData newLoudnessData = dataPckgFrom(); |
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148 |
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149 TUint8 event = 0; |
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150 |
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151 if ( newLoudnessData.iEnabled != iLoudnessData.iEnabled ) |
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152 { |
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153 iLoudnessData.iEnabled = newLoudnessData.iEnabled; |
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154 iEnabled = newLoudnessData.iEnabled; |
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155 if ( iLoudnessData.iEnabled ) |
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156 { |
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157 event = MAudioEffectObserver::KEnabled; |
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158 } |
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159 else |
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160 { |
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161 event = MAudioEffectObserver::KDisabled; |
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162 } |
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163 } |
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164 else if ( newLoudnessData.iEnforced != iLoudnessData.iEnforced ) |
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165 { |
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166 iLoudnessData.iEnforced = newLoudnessData.iEnforced; |
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167 iEnforced = newLoudnessData.iEnforced; |
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168 if ( iLoudnessData.iEnforced ) |
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169 { |
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170 event = MAudioEffectObserver::KEnforced; |
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171 } |
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172 else |
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173 { |
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174 event = MAudioEffectObserver::KNotEnforced; |
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175 } |
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176 } |
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177 else if ( newLoudnessData.iHaveUpdateRights != iLoudnessData.iHaveUpdateRights ) |
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178 { |
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179 iLoudnessData.iHaveUpdateRights = newLoudnessData.iHaveUpdateRights; |
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180 iHaveUpdateRights = newLoudnessData.iHaveUpdateRights; |
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181 if ( iLoudnessData.iHaveUpdateRights ) |
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182 { |
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183 event = MAudioEffectObserver::KGainedUpdateRights; |
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184 } |
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185 else |
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186 { |
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187 event = MAudioEffectObserver::KLostUpdateRights; |
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188 } |
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189 } |
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190 |
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191 if (!event) |
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192 return; |
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193 |
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194 for ( TInt i = 0; i < iObservers.Count(); i++ ) |
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195 { |
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196 iObservers[i]->EffectChanged(this, event); |
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197 } |
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198 } |
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199 |
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200 |
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201 // ========================== OTHER EXPORTED FUNCTIONS ========================= |
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202 |
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203 // End of File |
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204 |
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205 |