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1 /* |
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2 * Copyright (c) 2007-2008 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: The music control for the slideshow |
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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 // CLASS HEADER |
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22 #include "shwmusiccontrol.h" |
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23 |
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24 // EXTERNAL INCLUDES |
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25 #include <f32file.h> // RFs |
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26 #include <mpxplaybackutility.h> // MMPXPlaybackUtility |
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27 #include <mpxplaybackframeworkdefs.h> // TMPXPlaybackProperty, EPbRepeatOne |
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28 #include <mpxplaybackmessage.h> // TMPXPlaybackMessage |
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29 #include <mpxmessagegeneraldefs.h> |
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30 |
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31 // INTERNAL INCLUDES |
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32 #include "shwevent.h" |
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33 #include "shwslideshowenginepanic.h" |
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34 |
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35 #include <glxlog.h> |
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36 #include <glxtracer.h> |
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37 |
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38 // ----------------------------------------------------------------------------- |
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39 // C++ Constructor. save a few bits of ROM by inlining it. |
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40 // ----------------------------------------------------------------------------- |
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41 inline CShwMusicControl::CShwMusicControl( |
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42 MShwMusicObserver& aMusicObsvr, |
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43 const TDesC& aFilePath ) |
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44 : iFilePath( aFilePath ), |
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45 iMusicObsvr( aMusicObsvr ), |
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46 iMaxVolume( KErrNotFound ), |
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47 iCurrentVolume( KErrNotFound ), |
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48 iState( EMusicOff ) |
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49 { |
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50 // No implementation required |
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51 } |
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52 |
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53 // ----------------------------------------------------------------------------- |
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54 // NewL. Static construction |
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55 // ----------------------------------------------------------------------------- |
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56 CShwMusicControl* CShwMusicControl::NewL( |
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57 MShwMusicObserver& aMusicObsvr, const TDesC& aFilePath ) |
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58 { |
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59 TRACER(" CShwMusicControl::NewL"); |
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60 GLX_LOG_INFO( "CShwMusicControl::NewL" ); |
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61 CShwMusicControl* self = |
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62 new( ELeave ) CShwMusicControl( aMusicObsvr, aFilePath ); |
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63 CleanupStack::PushL( self ); |
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64 self->ConstructL(); |
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65 CleanupStack::Pop( self ); |
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66 return self; |
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67 } |
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68 |
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69 // ----------------------------------------------------------------------------- |
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70 // Destructor. |
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71 // ----------------------------------------------------------------------------- |
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72 CShwMusicControl::~CShwMusicControl() |
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73 { |
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74 TRACER(" CShwMusicControl::~CShwMusicControl"); |
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75 GLX_LOG_INFO( "CShwMusicControl::~CShwMusicControl" ); |
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76 if( iPlaybackUtility ) |
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77 { |
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78 //The Code Scanner Error is not corrected here in the case of |
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79 //calling a leaving function in the Non Leaving Function |
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80 //We need to write a seperate Function for this. |
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81 //but will reduce not reduce any error. |
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82 iPlaybackUtility->RemoveObserverL(*this); |
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83 // Tell player to close the music playback |
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84 TRAP_IGNORE( iPlaybackUtility->CommandL( EPbCmdClose ) ); |
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85 |
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86 |
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87 |
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88 // Don't destroy, close releases resources. |
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89 iPlaybackUtility->Close(); |
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90 } |
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91 } |
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92 |
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93 // ----------------------------------------------------------------------------- |
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94 // ConstructL. |
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95 // ----------------------------------------------------------------------------- |
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96 void CShwMusicControl::ConstructL() |
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97 { |
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98 TRACER("CShwMusicControl::ConstructL"); |
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99 GLX_LOG_INFO("CShwMusicControl::ConstructL"); |
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100 // need to specify the mode and observer, without these we get a crash |
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101 iPlaybackUtility = MMPXPlaybackUtility::NewL( KPbModeNewPlayer, this ); |
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102 // music playback is sacrificed if MPX fails |
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103 TRAPD( err, InitPlayerL() ); |
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104 if( err == KErrNone ) |
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105 { |
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106 iState = EMusicOn; |
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107 } |
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108 } |
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109 |
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110 // --------------------------------------------------------------------------- |
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111 // Initialize the player with File Path |
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112 // --------------------------------------------------------------------------- |
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113 void CShwMusicControl::InitPlayerL() |
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114 { |
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115 TRACER("CShwMusicControl::InitPlayerL"); |
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116 GLX_LOG_INFO( "CShwMusicControl::InitPlayerL" ); |
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117 RFs fs; |
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118 User::LeaveIfError( fs.Connect() ); |
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119 CleanupClosePushL( fs ); |
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120 User::LeaveIfError( fs.ShareProtected() ); |
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121 RFile file; |
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122 // try to open the file |
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123 TInt error = file.Open( |
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124 fs, |
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125 iFilePath, |
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126 EFileRead | EFileShareReadersOrWriters ); |
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127 // was there an error |
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128 if( KErrNone != error ) |
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129 { |
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130 GLX_LOG_INFO1( |
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131 "CShwMusicControl error in track %d", error ); |
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132 // let the observer know there was an error |
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133 iMusicObsvr.ErrorWithTrackL( error ); |
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134 User::Leave( error ); |
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135 } |
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136 |
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137 CleanupClosePushL( file ); |
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138 iPlaybackUtility->InitL( file ); |
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139 CleanupStack::PopAndDestroy( &file ); |
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140 CleanupStack::PopAndDestroy( &fs ); |
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141 |
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142 // The track should loop |
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143 iPlaybackUtility->SetL( EPbPropertyRepeatMode, EPbRepeatOne ); |
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144 } |
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145 |
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146 // ----------------------------------------------------------------------------- |
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147 // VolumeL |
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148 // Retrieve the volume values |
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149 // ----------------------------------------------------------------------------- |
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150 void CShwMusicControl::VolumeL() |
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151 { |
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152 TRACER("CShwMusicControl::VolumeL"); |
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153 GLX_LOG_INFO( "CShwMusicControl::VolumeL" ); |
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154 // Retrieve the volume - Volume indicator is shown upon slideshow start and |
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155 // when the volume is changed |
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156 if (iMaxVolume == KErrNotFound) |
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157 { |
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158 iPlaybackUtility->ValueL( *this, EPbPropertyMaxVolume ); |
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159 } |
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160 iPlaybackUtility->ValueL( *this, EPbPropertyVolume ); |
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161 } |
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162 |
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163 // ----------------------------------------------------------------------------- |
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164 // NotifyL. |
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165 // ----------------------------------------------------------------------------- |
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166 void CShwMusicControl::NotifyL( MShwEvent* aEvent ) |
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167 { |
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168 TRACER("CShwMusicControl::NotifyL"); |
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169 GLX_LOG_INFO( "CShwMusicControl::NotifyL" ); |
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170 // only handle events if music initialisation succeeded |
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171 if( iState == EMusicOn ) |
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172 { |
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173 // reset state flag |
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174 iSwitchingMusicOn = EFalse; |
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175 // music playback is sacrificed if MPX fails |
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176 TRAPD( errr, HandleEventL( aEvent ) ); |
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177 // if we had an error while switching music back on, tell observer |
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178 // that music is off |
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179 if( ( errr != KErrNone )&& |
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180 ( iSwitchingMusicOn ) ) |
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181 { |
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182 iMusicObsvr.MusicOff(); |
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183 } |
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184 } |
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185 } |
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186 |
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187 // --------------------------------------------------------------------------- |
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188 // From class MMPXPlaybackCallback. |
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189 // Handle the change of status of playback engine |
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190 // --------------------------------------------------------------------------- |
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191 void CShwMusicControl::HandlePropertyL( TMPXPlaybackProperty aProperty, |
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192 TInt aValue, |
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193 TInt aError ) |
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194 { |
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195 TRACER("CShwMusicControl::HandlePropertyL"); |
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196 GLX_LOG_INFO( "CShwMusicControl::HandlePropertyL" ); |
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197 |
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198 // leave if there was an error |
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199 User::LeaveIfError( aError ); |
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200 |
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201 // handle max volume and volume, ignore other properties |
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202 if( EPbPropertyMaxVolume == aProperty ) |
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203 { |
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204 iMaxVolume = aValue; |
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205 } |
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206 else if( EPbPropertyVolume == aProperty ) |
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207 { |
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208 // set the current volume |
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209 iCurrentVolume = aValue; |
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210 // call observer only when max volume is also known |
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211 // iMaxVolume and iCurrentVolume are initialized to KErrNotFound |
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212 if( iMaxVolume != KErrNotFound ) |
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213 { |
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214 iMusicObsvr.MusicVolumeL( iCurrentVolume, iMaxVolume ); |
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215 } |
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216 } |
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217 } |
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218 |
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219 // ----------------------------------------------------------------------------- |
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220 // From MMPXPlaybackCallback |
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221 // Method is called continously until aComplete=ETrue, signifying that |
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222 // it is done and there will be no more callbacks |
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223 // Only new items are passed each time |
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224 // ----------------------------------------------------------------------------- |
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225 void CShwMusicControl::HandleSubPlayerNamesL( |
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226 TUid /*aPlayer*/, const MDesCArray* /*aSubPlayers*/, |
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227 TBool /*aComplete*/, TInt /*aError*/ ) |
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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 // From class MMPXPlaybackCallback. |
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233 // Call back of media request |
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234 // --------------------------------------------------------------------------- |
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235 void CShwMusicControl::HandleMediaL( |
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236 const CMPXMedia& /*aProperties*/, TInt /*aError*/ ) |
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237 { |
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238 } |
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239 |
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240 // --------------------------------------------------------------------------- |
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241 // From class MMPXPlaybackObserver |
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242 // Handle playback message - required for debugging state of MPX |
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243 // Player component |
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244 // --------------------------------------------------------------------------- |
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245 void CShwMusicControl::HandlePlaybackMessageL( |
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246 const TMPXPlaybackMessage& /*aMessage*/ ) |
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247 { |
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248 } |
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249 |
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250 // --------------------------------------------------------------------------- |
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251 // From MMPXPlaybackObserver |
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252 // --------------------------------------------------------------------------- |
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253 void CShwMusicControl::HandlePlaybackMessage(const CMPXMessage& aMsg) |
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254 { |
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255 TRACER("CShwMusicControl::HandlePlaybackMessage"); |
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256 GLX_LOG_ENTRY_EXIT( "CShwMusicControl::HandlePlaybackMessageL()" ); |
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257 |
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258 switch(*aMsg.Value<TMPXPlaybackMessage::TEvent>( KMPXMessageGeneralEvent )) |
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259 { |
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260 case TMPXPlaybackMessage::EInitializeComplete: |
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261 { |
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262 GLX_LOG_INFO( "TMPXPlaybackMessage::EInitializeComplete" ); |
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263 // at here, can play the track |
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264 iCanPlay = ETrue; |
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265 |
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266 //execute the cached "play" command |
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267 if ( iPlayCached ) |
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268 { |
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269 GLX_LOG_INFO( "iPlayCached" ); |
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270 // Play the track |
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271 //The Code Scanner Error is not corrected here in the case of |
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272 //calling a leaving function in the Non Leaving Function |
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273 //We need to write a seperate Function for this. |
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274 //but will reduce only one error. |
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275 TRAP_IGNORE(iPlaybackUtility->CommandL( EPbCmdPlay ) ); |
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276 iMusicObsvr.MusicOnL(); |
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277 // need to call volume ourself to show the |
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278 // volume indicator in start |
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279 VolumeL(); |
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280 iPlayCached = EFalse; |
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281 } |
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282 break; |
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283 } |
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284 default: |
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285 { |
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286 GLX_LOG_INFO( "CShwMusicControl::HandlePlaybackMessage: Default" ); |
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287 break; |
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288 } |
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289 } |
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290 } |
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291 |
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292 // ----------------------------------------------------------------------------- |
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293 // HandleEventL. |
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294 // ----------------------------------------------------------------------------- |
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295 void CShwMusicControl::HandleEventL( MShwEvent* aEvent ) |
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296 { |
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297 TRACER("CShwMusicControl::HandleEventL( MShwEvent* aEvent )"); |
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298 GLX_LOG_INFO( "CShwTimerControl::HandleEventL" ); |
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299 // we got an event, was it start |
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300 if( dynamic_cast< TShwEventStart* >( aEvent ) ) |
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301 { |
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302 GLX_LOG_INFO( "CShwMusicControl::NotifyL - TShwEventStart" ); |
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303 // set state flag |
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304 iSwitchingMusicOn = ETrue; |
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305 // iCanPlay is True when Player is Initialized. |
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306 if ( iCanPlay ) |
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307 { |
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308 GLX_LOG_INFO( "inside ICanPlay" ); |
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309 // Play the track |
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310 TRAP_IGNORE(iPlaybackUtility->CommandL( EPbCmdPlay ) ); |
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311 iMusicObsvr.MusicOnL(); |
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312 // need to call volume ourself to show the |
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313 // volume indicator in start |
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314 VolumeL(); |
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315 } |
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316 else |
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317 { |
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318 GLX_LOG_INFO( "inside Else: ICanPlay" ); |
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319 // initialization is not finished ,and cache the "play" command |
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320 iPlayCached = ETrue; |
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321 } |
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322 } |
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323 else if( dynamic_cast< TShwEventPause* >( aEvent ) ) |
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324 { |
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325 GLX_LOG_INFO( "CShwMusicControl::NotifyL - TShwEventPause" ); |
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326 // pause playback |
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327 iPlaybackUtility->CommandL( EPbCmdPause ); |
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328 // let the observer know |
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329 iMusicObsvr.MusicOff(); |
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330 } |
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331 else if( dynamic_cast< TShwEventResume* >( aEvent ) ) |
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332 { |
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333 GLX_LOG_INFO( "CShwMusicControl::NotifyL - TShwEventResume" ); |
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334 // set state flag |
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335 iSwitchingMusicOn = ETrue; |
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336 // resume |
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337 iPlaybackUtility->CommandL( EPbCmdPlay ); |
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338 // let the observer know |
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339 iMusicObsvr.MusicOnL(); |
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340 } |
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341 else if( dynamic_cast< TShwEventVolumeDown* >( aEvent ) ) |
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342 { |
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343 GLX_LOG_INFO( "CShwMusicControl::NotifyL - TShwEventVolumeDown" ); |
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344 |
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345 iPlaybackUtility->CommandL( EPbCmdDecreaseVolume ); |
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346 VolumeL(); |
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347 } |
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348 else if( dynamic_cast< TShwEventVolumeUp* >( aEvent ) ) |
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349 { |
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350 GLX_LOG_INFO( "CShwMusicControl::NotifyL - TShwEventVolumeUp" ); |
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351 |
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352 iPlaybackUtility->CommandL( EPbCmdIncreaseVolume ); |
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353 VolumeL(); |
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354 } |
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355 else if( dynamic_cast< TShwEventToggleControlUi* >( aEvent ) ) |
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356 { |
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357 GLX_LOG_INFO( "CShwMusicControl::NotifyL - TShwEventToggleControlUi" ); |
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358 // Have to impliment if need comes |
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359 } |
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360 } |
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361 |