1 /* |
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2 * Copyright (c) 2006 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: Music Player stautus observer |
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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 <mpxplaybackutility.h> |
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20 #include <mpxplaybackmessage.h> |
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21 #include <mpxmedia.h> |
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22 #include <mpxmediageneraldefs.h> |
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23 #include <mpxmediamusicdefs.h> |
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24 #include <mpxmessagegeneraldefs.h> |
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25 #include <mpxplaybackmessagedefs.h> |
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26 #include <mpxlog.h> |
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27 |
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28 #include "aiplayerpluginengine.h" |
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29 |
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30 const TInt KMPXOneSecInMilliSecs( 1000 ); |
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31 const TInt KVolumeLevelMin = 0; |
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32 const TInt KVolumeLevelMax = 10; |
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33 |
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34 // ======== MEMBER FUNCTIONS ======== |
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35 |
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36 // --------------------------------------------------------------------------- |
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37 // CAiPlayerPluginEngine::ConstructL |
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38 // --------------------------------------------------------------------------- |
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39 // |
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40 void CAiPlayerPluginEngine::ConstructL() |
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41 { |
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42 MPX_DEBUG1("CAiPlayerPluginEngine::ConstructL"); |
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43 // Get the playback utility instance from engine. |
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44 iPlaybackUtility = MMPXPlaybackUtility::NewL( KPbModeActivePlayer, this ); |
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45 |
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46 TMPXPlaybackState state( EPbStateNotInitialised ); |
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47 |
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48 // Not fatal error if fetching the playback state fails |
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49 TRAP_IGNORE( state = iPlaybackUtility->StateL() ); |
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50 |
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51 if( state != EPbStateNotInitialised && |
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52 state != EPbStateInitialising ) |
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53 { |
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54 // Playback is already ongoing. We aren't going to receive EMediaChanged |
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55 // for the current song so we need manually update the media info |
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56 RequestMediaL(); |
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57 } |
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58 } |
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59 |
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60 // --------------------------------------------------------------------------- |
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61 // CAiPlayerPluginEngine::NewL |
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62 // --------------------------------------------------------------------------- |
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63 // |
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64 CAiPlayerPluginEngine* CAiPlayerPluginEngine::NewL( MAiPlayerPluginEngineObserver& aObserver ) |
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65 { |
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66 MPX_DEBUG1("CAiPlayerPluginEngine::NewL"); |
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67 CAiPlayerPluginEngine* self = new ( ELeave ) CAiPlayerPluginEngine( aObserver ); |
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68 CleanupStack::PushL( self ); |
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69 self->ConstructL(); |
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70 CleanupStack::Pop( self ); |
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71 return self; |
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72 } |
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73 |
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74 // --------------------------------------------------------------------------- |
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75 // CAiPlayerPluginEngine::CAiPlayerPluginEngine |
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76 // --------------------------------------------------------------------------- |
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77 // |
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78 CAiPlayerPluginEngine::CAiPlayerPluginEngine( MAiPlayerPluginEngineObserver& aObserver ) |
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79 : iObserver( &aObserver ), |
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80 iPlaybackUtility(NULL), |
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81 iTitle(NULL), |
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82 iArtist(NULL), |
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83 iMaxVolume(KVolumeLevelMax), |
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84 iVolume(KErrNotFound), |
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85 iPosition(KErrNotFound), |
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86 iDuration(KErrNotFound) |
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87 { |
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88 } |
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89 |
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90 // --------------------------------------------------------------------------- |
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91 // CAiPlayerPluginEngine::~CAiPlayerPluginEngine |
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92 // --------------------------------------------------------------------------- |
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93 // |
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94 CAiPlayerPluginEngine::~CAiPlayerPluginEngine() |
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95 { |
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96 MPX_DEBUG1("CAiPlayerPluginEngine::~CAiPlayerPluginEngine"); |
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97 if ( iPlaybackUtility ) |
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98 { |
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99 iPlaybackUtility->Close(); |
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100 } |
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101 delete iTitle; |
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102 delete iArtist; |
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103 } |
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104 |
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105 // --------------------------------------------------------------------------- |
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106 // From MMPXPlaybackObserver |
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107 // Handle playback message. |
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108 // --------------------------------------------------------------------------- |
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109 // |
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110 void CAiPlayerPluginEngine::HandlePlaybackMessage( CMPXMessage* aMessage, TInt aError ) |
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111 { |
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112 if ( aError == KErrNone && aMessage ) |
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113 { |
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114 TRAP_IGNORE( DoHandlePlaybackMessageL( *aMessage ) ); |
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115 } |
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116 } |
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117 |
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118 // --------------------------------------------------------------------------- |
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119 // From MMPXPlaybackCallback |
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120 // Handle playback property. |
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121 // --------------------------------------------------------------------------- |
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122 // |
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123 void CAiPlayerPluginEngine::HandlePropertyL( TMPXPlaybackProperty aProperty, TInt aValue, TInt aError ) |
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124 { |
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125 DoHandlePropertyL( aProperty, aValue, aError ); |
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126 } |
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127 |
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128 // --------------------------------------------------------------------------- |
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129 // From MMPXPlaybackCallback |
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130 // Method is called continously until aComplete=ETrue, signifying that |
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131 // it is done and there will be no more callbacks |
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132 // Only new items are passed each time |
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133 // --------------------------------------------------------------------------- |
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134 // |
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135 void CAiPlayerPluginEngine::HandleSubPlayerNamesL( |
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136 TUid /* aPlayer */, |
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137 const MDesCArray* /* aSubPlayers */, |
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138 TBool /* aComplete */, |
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139 TInt /* aError */ ) |
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140 { |
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141 // do nothing |
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142 } |
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143 |
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144 // --------------------------------------------------------------------------- |
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145 // From MMPXPlaybackCallback |
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146 // Handle media |
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147 // --------------------------------------------------------------------------- |
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148 // |
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149 void CAiPlayerPluginEngine::HandleMediaL( const CMPXMedia& aMedia, TInt aError ) |
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150 { |
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151 MPX_DEBUG1("CAiPlayerPluginEngine::HandleMediaL"); |
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152 if ( KErrNone == aError ) |
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153 { |
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154 delete iTitle; |
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155 iTitle = NULL; |
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156 if ( aMedia.IsSupported( KMPXMediaGeneralTitle ) ) |
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157 { |
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158 iTitle = (aMedia.ValueText( KMPXMediaGeneralTitle )).AllocL(); |
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159 } |
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160 else if ( aMedia.IsSupported( KMPXMediaGeneralUri ) ) |
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161 { |
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162 TParsePtrC filePath( aMedia.ValueText( KMPXMediaGeneralUri ) ); |
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163 iTitle = (filePath.Name()).AllocL(); |
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164 } |
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165 delete iArtist; |
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166 iArtist = NULL; |
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167 iArtist = (aMedia.ValueText( KMPXMediaMusicArtist )).AllocL(); |
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168 |
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169 iObserver->TrackInfoChanged( *iTitle, *iArtist ); |
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170 } |
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171 } |
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172 |
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173 // --------------------------------------------------------------------------- |
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174 // From MMPXPlaybackCallback |
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175 // Handle completion of a asynchronous command |
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176 // --------------------------------------------------------------------------- |
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177 // |
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178 void CAiPlayerPluginEngine::HandlePlaybackCommandComplete( CMPXCommand* /*aCommandResult*/, TInt /*aError*/ ) |
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179 { |
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180 // do nothing |
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181 } |
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182 |
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183 // --------------------------------------------------------------------------- |
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184 // Get the current state of the active player |
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185 // --------------------------------------------------------------------------- |
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186 // |
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187 TMPlayerState CAiPlayerPluginEngine::PlayerState() |
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188 { |
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189 MPX_DEBUG1("CAiPlayerPluginEngine::PlayerState"); |
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190 TMPXPlaybackState state( EPbStateNotInitialised ); |
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191 TRAP_IGNORE( state = iPlaybackUtility->StateL() ); |
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192 return MapState( state ); |
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193 } |
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194 |
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195 // --------------------------------------------------------------------------- |
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196 // CAiPlayerPluginEngine::Title |
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197 // --------------------------------------------------------------------------- |
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198 // |
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199 const TDesC& CAiPlayerPluginEngine::Title() |
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200 { |
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201 if ( iTitle ) |
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202 { |
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203 return *iTitle; |
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204 } |
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205 else |
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206 { |
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207 return KNullDesC; |
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208 } |
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209 } |
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210 |
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211 // --------------------------------------------------------------------------- |
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212 // CAiPlayerPluginEngine::Artist |
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213 // --------------------------------------------------------------------------- |
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214 // |
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215 const TDesC& CAiPlayerPluginEngine::Artist() |
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216 { |
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217 if ( iArtist ) |
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218 { |
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219 return *iArtist; |
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220 } |
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221 else |
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222 { |
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223 return KNullDesC; |
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224 } |
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225 } |
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226 |
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227 // ---------------------------------------------------- |
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228 // CAiPlayerPluginEngine::Position |
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229 // ---------------------------------------------------- |
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230 // |
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231 TInt CAiPlayerPluginEngine::Position() |
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232 { |
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233 return iPosition; |
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234 } |
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235 |
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236 // ---------------------------------------------------- |
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237 // CAiPlayerPluginEngine::Duration |
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238 // ---------------------------------------------------- |
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239 // |
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240 TInt CAiPlayerPluginEngine::Duration() |
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241 { |
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242 return iDuration; |
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243 } |
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244 |
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245 // ---------------------------------------------------- |
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246 // CAiPlayerPluginEngine::Volume |
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247 // ---------------------------------------------------- |
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248 // |
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249 TInt CAiPlayerPluginEngine::Volume() |
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250 { |
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251 return iVolume; |
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252 } |
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253 |
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254 // ---------------------------------------------------- |
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255 // CAiPlayerPluginEngine::SetVolumeL |
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256 // ---------------------------------------------------- |
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257 // |
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258 void CAiPlayerPluginEngine::SetVolumeL( TInt aValue ) |
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259 { |
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260 MPX_DEBUG2("CAiPlayerPluginEngine::SetVolumeL(%d)", aValue ); |
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261 if ( aValue == iVolume ) |
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262 { |
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263 return; |
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264 } |
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265 if ( aValue < KVolumeLevelMin || aValue > KVolumeLevelMax ) |
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266 { |
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267 User::Leave(KErrArgument); |
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268 } |
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269 else |
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270 { |
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271 // iVolume will be updated upon callback DoHandlePropertyL |
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272 iPlaybackUtility->SetL( EPbPropertyVolume, MapToMpxVolume(aValue) ) ; |
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273 } |
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274 } |
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275 |
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276 // --------------------------------------------------------------------------- |
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277 // Handle playback message. |
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278 // --------------------------------------------------------------------------- |
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279 // |
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280 void CAiPlayerPluginEngine::DoHandlePlaybackMessageL( const CMPXMessage& aMessage ) |
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281 { |
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282 MPX_DEBUG1("CAiPlayerPluginEngine::DoHandlePlaybackMessageL"); |
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283 |
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284 TMPXMessageId id( aMessage.ValueTObjectL<TMPXMessageId>( KMPXMessageGeneralId ) ); |
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285 if ( KMPXMessageGeneral == id ) |
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286 { |
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287 TInt event( aMessage.ValueTObjectL<TInt>( KMPXMessageGeneralEvent ) ); |
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288 MPX_DEBUG2("CAiPlayerPluginEngine::DoHandlePlaybackMessageL(%d)", event ); |
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289 switch ( event ) |
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290 { |
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291 case TMPXPlaybackMessage::EPropertyChanged: |
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292 { |
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293 TInt error( KErrNone ); |
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294 DoHandlePropertyL( |
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295 aMessage.ValueTObjectL<TInt>( KMPXMessageGeneralType ), |
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296 aMessage.ValueTObjectL<TInt>( KMPXMessageGeneralData ), |
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297 error ); |
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298 break; |
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299 } |
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300 case TMPXPlaybackMessage::EStateChanged: |
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301 { |
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302 TMPXPlaybackState state( aMessage.ValueTObjectL<TMPXPlaybackState>( KMPXMessageGeneralType )); |
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303 MPX_DEBUG2("CAiPlayerPluginEngine::HandlePlaybackMessageL - EStateChanged(%d)", state); |
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304 |
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305 DoHandleStateChangedL( state ); |
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306 break; |
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307 } |
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308 case TMPXPlaybackMessage::EMediaChanged: |
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309 case TMPXPlaybackMessage::EPlaylistUpdated: |
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310 { |
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311 iPlaybackUtility->PropertyL( *this, EPbPropertyPosition ); |
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312 iPlaybackUtility->PropertyL( *this, EPbPropertyDuration ); |
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313 RequestMediaL(); |
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314 break; |
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315 } |
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316 case TMPXPlaybackMessage::ECommandReceived: |
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317 { |
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318 MPX_DEBUG2("CAiPlayerPluginEngine::HandlePlaybackMessageL - ECommandReceived(%d)", |
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319 aMessage.ValueTObjectL<TInt>( KMPXMessageGeneralType ) ); |
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320 break; |
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321 } |
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322 case TMPXPlaybackMessage::EActivePlayerChanged: |
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323 { |
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324 MPX_DEBUG3("CAiPlayerPluginEngine::HandlePlaybackMessageL - EActivePlayerChanged(%d, %d)", |
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325 aMessage.ValueTObjectL<TInt>( KMPXMessageGeneralType ), |
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326 aMessage.ValueTObjectL<TInt>( KMPXMessageGeneralData ) ); |
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327 iPlaybackUtility->PropertyL( *this, EPbPropertyPosition ); |
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328 iPlaybackUtility->PropertyL( *this, EPbPropertyDuration ); |
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329 iPlaybackUtility->PropertyL( *this, EPbPropertyMaxVolume ); |
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330 iPlaybackUtility->PropertyL( *this, EPbPropertyVolume ); |
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331 DoHandleStateChangedL( iPlaybackUtility->StateL() ); |
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332 // refresh media property |
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333 RequestMediaL(); |
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334 break; |
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335 } |
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336 case TMPXPlaybackMessage::EDownloadStateChanged: |
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337 { |
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338 iPlaybackUtility->PropertyL( *this, EPbPropertyPosition ); |
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339 iPlaybackUtility->PropertyL( *this, EPbPropertyDuration ); |
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340 RequestMediaL(); |
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341 break; |
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342 } |
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343 default: |
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344 { |
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345 break; |
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346 } |
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347 } |
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348 } |
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349 } |
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350 |
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351 // --------------------------------------------------------------------------- |
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352 // Handle playback property. |
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353 // --------------------------------------------------------------------------- |
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354 // |
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355 void CAiPlayerPluginEngine::DoHandlePropertyL( TInt aProperty, TInt aValue, TInt aError ) |
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356 { |
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357 MPX_DEBUG4("CAiPlayerPluginEngine::DoHandlePropertyL - Property(%d); Value(%d); Error(%d)", aProperty, aValue, aError ); |
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358 if ( KErrNone == aError ) |
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359 { |
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360 switch ( aProperty ) |
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361 { |
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362 case EPbPropertyPosition: |
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363 { |
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364 iPosition = aValue / KMPXOneSecInMilliSecs; |
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365 iObserver->PlaybackPositionChanged( iPosition ); |
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366 break; |
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367 } |
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368 case EPbPropertyDuration: |
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369 { |
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370 iDuration = aValue / KMPXOneSecInMilliSecs; |
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371 break; |
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372 } |
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373 case EPbPropertyMaxVolume: |
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374 { |
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375 iMaxVolume = aValue; |
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376 break; |
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377 } |
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378 case EPbPropertyVolume: |
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379 { |
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380 TInt volume = MapToAiVolume(aValue); |
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381 if ( iVolume != volume ) |
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382 { |
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383 iVolume = volume; |
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384 iObserver->VolumeChanged( iVolume ); |
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385 } |
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386 |
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387 break; |
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388 } |
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389 default: |
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390 { |
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391 break; |
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392 } |
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393 } |
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394 } |
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395 } |
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396 |
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397 // --------------------------------------------------------------------------- |
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398 // Handle playback state changed. |
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399 // --------------------------------------------------------------------------- |
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400 // |
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401 void CAiPlayerPluginEngine::DoHandleStateChangedL( TMPXPlaybackState aState ) |
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402 { |
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403 TMPlayerState state = MapState( aState ); |
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404 MPX_DEBUG3("CAiPlayerPluginEngine::DoHandleStateChangedL - State mapped from (%d) to (%d)", aState, state ); |
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405 iObserver->PlayerStateChanged(state); |
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406 } |
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407 |
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408 // --------------------------------------------------------------------------- |
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409 // Displays error notes. |
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410 // --------------------------------------------------------------------------- |
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411 // |
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412 void CAiPlayerPluginEngine::HandleErrorL( TInt aError ) |
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413 { |
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414 MPX_DEBUG2("CAiPlayerPluginEngine::HandleErrorL(%d)", aError ); |
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415 } |
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416 |
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417 // --------------------------------------------------------------------------- |
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418 // Map states from TMPXPlaybackState to TMPlayerState |
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419 // --------------------------------------------------------------------------- |
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420 // |
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421 TMPlayerState CAiPlayerPluginEngine::MapState( TMPXPlaybackState aState ) |
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422 { |
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423 TMPlayerState state = EMPlayerStateOther; |
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424 switch ( aState ) |
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425 { |
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426 case EPbStatePlaying: |
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427 state = EMPlayerStatePlaying; |
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428 break; |
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429 case EPbStatePaused: |
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430 state = EMPlayerStatePaused; |
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431 break; |
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432 case EPbStateSeekingForward: |
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433 case EPbStateSeekingBackward: |
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434 state = EMPlayerStateSeeking; |
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435 break; |
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436 default: |
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437 break; |
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438 } |
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439 return state; |
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440 } |
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441 |
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442 // --------------------------------------------------------------------------- |
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443 // Maps volume from MPX player to AI volume. |
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444 // --------------------------------------------------------------------------- |
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445 // |
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446 TInt CAiPlayerPluginEngine::MapToAiVolume( TInt aVolume ) |
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447 { |
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448 TInt volume; |
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449 if ( iMaxVolume == KVolumeLevelMax ) |
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450 { |
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451 // No need to translate |
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452 volume = aVolume; |
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453 } |
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454 else if ( aVolume == KVolumeLevelMin ) |
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455 { |
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456 volume = KVolumeLevelMin; |
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457 } |
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458 else if ( aVolume == iMaxVolume ) |
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459 { |
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460 volume = KVolumeLevelMax; |
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461 } |
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462 else |
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463 { |
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464 volume = (TInt) ((aVolume * KVolumeLevelMax) / iMaxVolume); |
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465 } |
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466 return volume; |
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467 } |
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468 |
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469 // --------------------------------------------------------------------------- |
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470 // Maps volume from AI to MPX player volume. |
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471 // --------------------------------------------------------------------------- |
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472 // |
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473 TInt CAiPlayerPluginEngine::MapToMpxVolume( TInt aVolume ) |
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474 { |
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475 TInt volume; |
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476 if ( iMaxVolume == KVolumeLevelMax ) |
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477 { |
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478 // No need to translate |
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479 volume = aVolume; |
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480 } |
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481 else if ( aVolume == KVolumeLevelMin ) |
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482 { |
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483 volume = KVolumeLevelMin; |
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484 } |
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485 else if ( aVolume == KVolumeLevelMax ) |
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486 { |
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487 volume = iMaxVolume; |
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488 } |
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489 else |
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490 { |
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491 volume = (TInt) ((aVolume * iMaxVolume) / KVolumeLevelMax); |
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492 } |
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493 return volume; |
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494 } |
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495 |
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496 // --------------------------------------------------------------------------- |
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497 // Requests Media. |
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498 // --------------------------------------------------------------------------- |
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499 // |
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500 void CAiPlayerPluginEngine::RequestMediaL() |
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501 { |
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502 MMPXSource* s = iPlaybackUtility->Source(); |
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503 if ( s ) |
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504 { |
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505 RArray<TMPXAttribute> attrs; |
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506 CleanupClosePushL(attrs); |
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507 attrs.Append( KMPXMediaGeneralUri ); |
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508 attrs.Append( KMPXMediaGeneralTitle ); |
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509 attrs.Append( KMPXMediaMusicArtist ); |
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510 s->MediaL( attrs.Array(), *this ); |
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511 CleanupStack::PopAndDestroy( &attrs ); |
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512 } |
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513 } |
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514 // End of File |
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