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1 /* |
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2 * Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: ?Description |
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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 "irctrlcmdobserver.h" |
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20 #include "irctrlcommand.h" |
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21 #include "irdebug.h" |
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22 #include "ircontrolparams.h" |
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23 |
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24 // ======== MEMBER FUNCTIONS ======== |
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25 // --------------------------------------------------------------------------- |
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26 // Function : NewL |
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27 // Function returns an instance of CIRCtrlCmdObserver |
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28 // Two phase constructor |
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29 // --------------------------------------------------------------------------- |
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30 // |
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31 EXPORT_C CIRCtrlCmdObserver* CIRCtrlCmdObserver::NewL |
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32 (MIRCtrlCmdObserver* aObserver,MIRStreamFill* aStream) |
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33 { |
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34 IRLOG_DEBUG( "CIRCtrlCmdObserver::NewL" ); |
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35 CIRCtrlCmdObserver* self = CIRCtrlCmdObserver::NewLC(aObserver,aStream); |
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36 CleanupStack::Pop(self); |
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37 IRLOG_DEBUG( "CIRCtrlCmdObserver::NewL - Exiting." ); |
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38 return self; |
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39 } |
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40 |
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41 // --------------------------------------------------------------------------- |
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42 // Function : NewLC |
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43 // Function returns an instance of CIRCtrlCmdObserver |
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44 // Two phase constructor |
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45 // --------------------------------------------------------------------------- |
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46 // |
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47 EXPORT_C CIRCtrlCmdObserver* CIRCtrlCmdObserver::NewLC |
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48 (MIRCtrlCmdObserver* aObserver,MIRStreamFill* aStream) |
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49 { |
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50 IRLOG_DEBUG( "CIRCtrlCmdObserver::NewLC" ); |
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51 CIRCtrlCmdObserver* self = new (ELeave) CIRCtrlCmdObserver; |
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52 CleanupStack::PushL(self); |
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53 self->ConstructL(aObserver,aStream); |
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54 IRLOG_DEBUG( "CIRCtrlCmdObserver::NewLC - Exiting." ); |
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55 return self; |
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56 } |
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57 |
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58 // --------------------------------------------------------------------------- |
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59 // Function : ~CIRCtrlCmdObserver |
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60 // Default destructor calls Cancel function which cancel the active request |
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61 // --------------------------------------------------------------------------- |
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62 // |
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63 CIRCtrlCmdObserver::~CIRCtrlCmdObserver() |
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64 { |
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65 IRLOG_DEBUG( "CIRCtrlCmdObserver::~CIRCtrlCmdObserver" ); |
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66 if ( iVolumeTimer->IsActive() ) |
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67 { |
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68 iVolumeTimer->Cancel(); |
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69 } |
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70 delete iVolumeTimer; |
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71 IRLOG_DEBUG( "CIRCtrlCmdObserver::~CIRCtrlCmdObserver - Exiting." ); |
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72 } |
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73 |
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74 // --------------------------------------------------------------------------- |
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75 // Function : SentRequest |
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76 // Function sends request to handle events represented by TIRControlCommmand |
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77 // --------------------------------------------------------------------------- |
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78 // |
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79 EXPORT_C void CIRCtrlCmdObserver::SentRequest( TIRControlCommmand aCommand, TInt aValue ) |
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80 { |
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81 IRLOG_DEBUG( "CIRCtrlCmdObserver::SentRequest" ); |
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82 if(aCommand==EPlayerChanged) |
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83 { |
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84 iObserver->PlayerChanged(); |
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85 } |
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86 else |
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87 { |
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88 iObserver->MCtrlCommand( aCommand, aValue ); |
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89 } |
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90 IRLOG_DEBUG( "CIRCtrlCmdObserver::SentRequest - Exiting." ); |
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91 } |
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92 |
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93 // --------------------------------------------------------------------------- |
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94 // Function : FilltheBuffer |
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95 // Function sends request to fill the buffer |
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96 // --------------------------------------------------------------------------- |
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97 // |
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98 EXPORT_C void CIRCtrlCmdObserver::FilltheBuffer(TDes8& aInputBuffer) |
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99 { |
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100 IRLOG_DEBUG( "CIRCtrlCmdObserver::FilltheBuffer" ); |
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101 iStream->FilltheBuffer(aInputBuffer); |
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102 IRLOG_DEBUG( "CIRCtrlCmdObserver::FilltheBuffer - Exiting." ); |
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103 } |
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104 |
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105 // --------------------------------------------------------------------------- |
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106 // Function : FetchVolume |
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107 // Function sends request to get the current volume index |
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108 // --------------------------------------------------------------------------- |
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109 // |
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110 EXPORT_C TInt CIRCtrlCmdObserver::FetchVolume() |
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111 { |
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112 IRLOG_DEBUG( "CIRCtrlCmdObserver::FetchVolume" ); |
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113 return iObserver->FetchVolume(); |
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114 } |
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115 |
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116 // --------------------------------------------------------------------------- |
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117 // Function : AudioFadeInOut |
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118 // Function is called for audio Fade In Fade Out Effects |
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119 // --------------------------------------------------------------------------- |
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120 // |
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121 EXPORT_C void CIRCtrlCmdObserver::AudioFadeInOut |
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122 (TIRControlCommmand& aCommand,TInt aValue) |
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123 { |
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124 IRLOG_DEBUG( "CIRCtrlCmdObserver::AudioFadeInOut" ); |
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125 iPersistentVolume = aValue; |
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126 if ( EBufferFadeIn == aCommand ) |
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127 { |
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128 //Audio Fade In effect |
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129 if ( iVolumeTimer->IsActive() ) |
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130 { |
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131 //cancels the previous request if pending |
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132 iVolumeTimer->Cancel(); |
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133 } |
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134 if ( !iVolumeTimer->IsActive() ) |
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135 { |
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136 //starts the fade in effect |
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137 iVolumeLevel = 0; |
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138 TTimeIntervalMicroSeconds32 interval(KVolumeTime); |
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139 iVolumeTimer->Start(interval,interval,TCallBack( |
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140 CIRCtrlCmdObserver::StartAudioFadeIn,this)); |
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141 } |
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142 } |
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143 else if ( EBufferFadeOut == aCommand ) |
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144 { |
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145 //Audio Fade Out effect |
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146 if ( iVolumeTimer->IsActive() ) |
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147 { |
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148 //cancels the previous request if pending |
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149 iVolumeTimer->Cancel(); |
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150 } |
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151 if ( !iVolumeTimer->IsActive() ) |
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152 { |
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153 //starts the fade out effect |
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154 iVolumeLevel = iPersistentVolume; |
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155 TTimeIntervalMicroSeconds32 interval(KDownVolumeTime); |
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156 iVolumeTimer->Start(interval,interval,TCallBack( |
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157 CIRCtrlCmdObserver::StartAudioFadeOut,this)); |
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158 } |
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159 } |
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160 else |
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161 { |
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162 IRLOG_DEBUG( "CIRCtrlCmdObserver::AudioFadeInOut - Exiting." ); |
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163 return; |
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164 } |
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165 IRLOG_DEBUG( "CIRCtrlCmdObserver::AudioFadeInOut - Exiting." ); |
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166 } |
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167 |
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168 // --------------------------------------------------------------------------- |
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169 // Function : DoAudioFadeOut |
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170 // Function is used to sent request start audio Fade Out |
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171 // --------------------------------------------------------------------------- |
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172 // |
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173 EXPORT_C void CIRCtrlCmdObserver::DoAudioFadeOut() |
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174 { |
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175 IRLOG_DEBUG( "CIRCtrlCmdObserver::DoAudioFadeOut" ); |
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176 //requests to start Audio Fade Out |
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177 iObserver->DoAudioFadeOut(); |
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178 } |
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179 |
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180 // --------------------------------------------------------------------------- |
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181 // Function : ConstructL |
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182 // Function does all the initializations |
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183 // Two phase constructor |
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184 // --------------------------------------------------------------------------- |
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185 // |
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186 void CIRCtrlCmdObserver::ConstructL(MIRCtrlCmdObserver* aObserver, |
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187 MIRStreamFill* aStream) |
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188 { |
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189 IRLOG_DEBUG( "CIRCtrlCmdObserver::ConstructL" ); |
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190 iObserver = aObserver; |
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191 iStream = aStream; |
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192 iVolumeTimer = CPeriodic::NewL(CPeriodic::EPriorityStandard); |
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193 IRLOG_DEBUG( "CIRCtrlCmdObserver::ConstructL - Exiting." ); |
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194 } |
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195 |
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196 // --------------------------------------------------------------------------- |
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197 // Function : CIRCtrlCmdObserver |
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198 // Function is the default constructor, sets the CActive priority, Line status |
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199 // --------------------------------------------------------------------------- |
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200 // |
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201 CIRCtrlCmdObserver::CIRCtrlCmdObserver() |
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202 { |
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203 //No implementation |
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204 } |
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205 |
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206 // --------------------------------------------------------------------------- |
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207 // Function : StartAudioFadeIn |
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208 // Function Starts audio Fade In effects |
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209 // --------------------------------------------------------------------------- |
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210 // |
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211 TInt CIRCtrlCmdObserver::StartAudioFadeIn(TAny* aPtr) |
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212 { |
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213 IRLOG_DEBUG( "CIRCtrlCmdObserver::StartAudioFadeIn" ); |
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214 CIRCtrlCmdObserver* self = static_cast<CIRCtrlCmdObserver*>(aPtr); |
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215 if( self ) |
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216 { |
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217 self->UpdateVolumeInc(); |
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218 } |
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219 IRLOG_DEBUG( "CIRCtrlCmdObserver::StartAudioFadeIn - Exiting." ); |
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220 return KErrNone; |
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221 } |
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222 |
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223 // --------------------------------------------------------------------------- |
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224 // Function : StartAudioFadeOut |
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225 // Function Starts audio Fade Out effects |
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226 // --------------------------------------------------------------------------- |
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227 // |
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228 TInt CIRCtrlCmdObserver::StartAudioFadeOut(TAny* aPtr) |
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229 { |
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230 IRLOG_DEBUG( "CIRCtrlCmdObserver::StartAudioFadeOut" ); |
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231 CIRCtrlCmdObserver* self = static_cast<CIRCtrlCmdObserver*>(aPtr); |
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232 if( self ) |
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233 { |
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234 self->UpdateVolumeDec(); |
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235 } |
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236 IRLOG_DEBUG( "CIRCtrlCmdObserver::StartAudioFadeOut - Exiting." ); |
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237 return KErrNone; |
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238 } |
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239 |
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240 // --------------------------------------------------------------------------- |
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241 // Function : UpdateVolumeInc |
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242 // Function does the Fade In effect |
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243 // --------------------------------------------------------------------------- |
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244 // |
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245 void CIRCtrlCmdObserver::UpdateVolumeInc() |
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246 { |
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247 IRLOG_DEBUG( "CIRCtrlCmdObserver::UpdateVolumeInc" ); |
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248 //less than zero condition check the value will never be less than zero |
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249 //even when when we start |
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250 //primary check is volume becoming greater than equal to current volume |
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251 //level stored in iPersistentVolume |
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252 if ( iVolumeTimer->IsActive() |
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253 && ( ( 0 <= iVolumeLevel ) |
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254 && ( iPersistentVolume >= iVolumeLevel ) ) ) |
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255 { |
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256 //if the time is volume level is not equal to current volume stored in |
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257 // iPersistentVolume |
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258 //it will initiates fade in effect |
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259 iCommand = EBufferFadeIn; |
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260 iObserver->MCtrlCommand(iCommand,iVolumeLevel); |
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261 iVolumeLevel++; |
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262 } |
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263 else |
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264 { |
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265 if ( iVolumeTimer->IsActive() ) |
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266 { |
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267 iVolumeTimer->Cancel(); |
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268 } |
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269 } |
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270 IRLOG_DEBUG( "CIRCtrlCmdObserver::UpdateVolumeInc - Exiting." ); |
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271 } |
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272 |
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273 // --------------------------------------------------------------------------- |
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274 // Function : UpdateVolumeDec |
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275 // Function does the Fade In effect |
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276 // --------------------------------------------------------------------------- |
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277 // |
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278 void CIRCtrlCmdObserver::UpdateVolumeDec() |
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279 { |
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280 IRLOG_DEBUG( "CIRCtrlCmdObserver::UpdateVolumeDec" ); |
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281 //primary check is volume becoming lesser than equal to zero level |
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282 if ( iVolumeTimer->IsActive() |
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283 && ( ( 0 <= iVolumeLevel ) |
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284 && ( iPersistentVolume >= iVolumeLevel ) ) ) |
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285 { |
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286 //if the time is volume level is not equal to current zero |
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287 //it will initiates fade out effect |
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288 iCommand = EBufferFadeOut; |
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289 iObserver->MCtrlCommand(iCommand,iVolumeLevel); |
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290 iVolumeLevel--; |
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291 } |
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292 else |
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293 { |
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294 if ( iVolumeTimer->IsActive() ) |
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295 { |
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296 iVolumeTimer->Cancel(); |
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297 } |
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298 } |
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299 IRLOG_DEBUG( "CIRCtrlCmdObserver::UpdateVolumeDec - Exiting." ); |
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300 } |
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301 |
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302 |