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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: Class to handle playlist extraction |
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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 <e32base.h> |
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20 #include <mpxplaylistengine.h> |
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21 #include <mpxmedia.h> |
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22 #include <mpxmediaarray.h> |
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23 #include <mpxcollectiontype.h> |
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24 #include <mpxmediageneraldefs.h> |
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25 #include "mpxplaylistscanner.h" |
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26 #include "mpxplaylistscanobserver.h" |
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27 #include "mpxfilescanstateobserver.h" |
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28 |
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29 // CONSTANTS |
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30 const TInt KExtractionCount = 2; |
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31 |
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32 // ======== MEMBER FUNCTIONS ======== |
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33 |
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34 // --------------------------------------------------------------------------- |
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35 // Default constructor |
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36 // --------------------------------------------------------------------------- |
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37 // |
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38 CMPXPlaylistScanner::CMPXPlaylistScanner( MMPXPlaylistScanObserver& aObs, |
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39 MMPXFileScanStateObserver& aStateObs, |
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40 RPointerArray<CMPXCollectionType>& aTypes ) : |
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41 iObserver( aObs ), |
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42 iStateObserver( aStateObs ), |
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43 iSupportedTypes(aTypes) |
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44 { |
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45 } |
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46 |
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47 |
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48 // --------------------------------------------------------------------------- |
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49 // 2nd phase constructor |
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50 // --------------------------------------------------------------------------- |
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51 // |
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52 void CMPXPlaylistScanner::ConstructL() |
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53 { |
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54 iPlEngine = CMPXPlaylistEngine::NewL( *this ); |
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55 iPlList = new(ELeave) CDesCArrayFlat(1); // granularity |
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56 iPlUpdateList = new(ELeave) CDesCArrayFlat(1); // granularity |
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57 |
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58 iPropArray = CMPXMediaArray::NewL(); |
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59 iUpdatePropArray = CMPXMediaArray::NewL(); |
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60 } |
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61 |
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62 |
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63 // --------------------------------------------------------------------------- |
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64 // Two Phased Constructor |
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65 // --------------------------------------------------------------------------- |
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66 // |
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67 CMPXPlaylistScanner* CMPXPlaylistScanner::NewL( |
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68 MMPXPlaylistScanObserver& aObs, |
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69 MMPXFileScanStateObserver& aStateObs, |
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70 RPointerArray<CMPXCollectionType>& aTypes ) |
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71 { |
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72 CMPXPlaylistScanner* self = new(ELeave) CMPXPlaylistScanner( aObs, |
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73 aStateObs, |
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74 aTypes ); |
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75 CleanupStack::PushL( self ); |
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76 self->ConstructL(); |
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77 CleanupStack::Pop( self ); |
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78 return self; |
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79 } |
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80 |
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81 // --------------------------------------------------------------------------- |
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82 // Virtual destructor |
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83 // --------------------------------------------------------------------------- |
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84 // |
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85 CMPXPlaylistScanner::~CMPXPlaylistScanner() |
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86 { |
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87 if( iPlList ) |
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88 { |
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89 iPlList->Reset(); |
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90 delete iPlList; |
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91 } |
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92 if( iPlUpdateList ) |
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93 { |
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94 iPlUpdateList->Reset(); |
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95 delete iPlUpdateList; |
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96 } |
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97 |
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98 if( iPropArray ) |
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99 { |
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100 iPropArray->Reset(); |
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101 } |
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102 delete iPropArray; |
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103 |
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104 if( iUpdatePropArray ) |
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105 { |
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106 iUpdatePropArray->Reset(); |
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107 } |
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108 delete iUpdatePropArray; |
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109 |
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110 if( iPlEngine ) |
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111 { |
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112 iPlEngine->CancelRequests(); |
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113 } |
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114 delete iPlEngine; |
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115 } |
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116 |
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117 // --------------------------------------------------------------------------- |
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118 // Start the playlist scanning procedure |
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119 // --------------------------------------------------------------------------- |
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120 // |
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121 void CMPXPlaylistScanner::ScanL() |
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122 { |
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123 iNewPlPending = iPlList->Count(); |
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124 iUpdatePlPending = iPlUpdateList->Count(); |
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125 |
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126 // Add all files in the list to the playlist engine queue. |
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127 // |
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128 if( iNewPlPending || iUpdatePlPending ) |
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129 { |
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130 for( TInt i=0; i<iNewPlPending; ++i ) |
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131 { |
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132 iPlEngine->InternalizePlaylistL( (*iPlList)[i] ); |
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133 } |
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134 for( TInt i=0; i<iUpdatePlPending; ++i ) |
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135 { |
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136 iPlEngine->InternalizePlaylistL( (*iPlUpdateList)[i] ); |
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137 } |
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138 iExtracting = ETrue; |
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139 } |
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140 // No files to extract |
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141 // |
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142 else |
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143 { |
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144 iStateObserver.HandleScanStateCompleteL( MMPXFileScanStateObserver::EScanPlaylists, |
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145 KErrNone ); |
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146 } |
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147 } |
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148 |
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149 // --------------------------------------------------------------------------- |
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150 // Cancel the playlist scanning procedure |
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151 // --------------------------------------------------------------------------- |
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152 // |
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153 void CMPXPlaylistScanner::Cancel() |
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154 { |
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155 if( iExtracting ) |
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156 { |
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157 iPlEngine->CancelRequests(); |
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158 iExtracting = EFalse; |
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159 TRAP_IGNORE(iStateObserver.HandleScanStateCompleteL( MMPXFileScanStateObserver::EScanPlaylists, |
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160 KErrCancel ); |
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161 ); |
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162 } |
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163 } |
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164 |
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165 // --------------------------------------------------------------------------- |
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166 // Reset the object |
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167 // --------------------------------------------------------------------------- |
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168 // |
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169 void CMPXPlaylistScanner::Reset() |
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170 { |
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171 iPlList->Reset(); |
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172 iPlUpdateList->Reset(); |
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173 iPropArray->Reset(); |
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174 iUpdatePropArray->Reset(); |
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175 } |
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176 |
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177 // --------------------------------------------------------------------------- |
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178 // Add a file to the list to be extracted |
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179 // --------------------------------------------------------------------------- |
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180 // |
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181 void CMPXPlaylistScanner::AddPlaylistToScanL( const TDesC& aFile ) |
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182 { |
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183 iPlList->AppendL( aFile ); |
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184 } |
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185 |
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186 // --------------------------------------------------------------------------- |
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187 // Add a file to the list to be updated |
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188 // --------------------------------------------------------------------------- |
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189 // |
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190 void CMPXPlaylistScanner::AddUpdatedPlaylistToScanL( const TDesC& aFile ) |
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191 { |
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192 iPlUpdateList->AppendL( aFile ); |
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193 } |
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194 |
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195 // --------------------------------------------------------------------------- |
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196 // Handles playlist import |
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197 // Note: aCompleted is not in use for Increment 8, for future usage. |
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198 // --------------------------------------------------------------------------- |
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199 // |
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200 void CMPXPlaylistScanner::HandlePlaylistL( CMPXMedia* aPlaylist, |
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201 const TInt aError, |
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202 const TBool /*aCompleted*/ ) |
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203 { |
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204 // Only add parsable playlists |
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205 // |
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206 if( aError == KErrNone ) |
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207 { |
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208 // We take ownership of the media object |
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209 // |
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210 CleanupStack::PushL( aPlaylist ); |
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211 |
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212 // Find what collection this belongs to |
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213 // |
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214 const TDesC& file = aPlaylist->ValueText( |
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215 TMPXAttribute( KMPXMediaIdGeneral, EMPXMediaGeneralUri)); |
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216 TParsePtrC parse( file ); |
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217 TInt index(KErrNotFound); |
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218 TInt count( iSupportedTypes.Count() ); |
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219 for (TInt i=0; i <count; ++i) |
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220 { |
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221 TInt index2(KErrNotFound); |
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222 const CDesCArray& exts = iSupportedTypes[i]->Extensions(); |
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223 if (!exts.FindIsq(parse.Ext(), index2)) |
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224 { // found |
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225 index = i; |
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226 break; |
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227 } |
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228 } |
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229 |
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230 // Found? |
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231 if( index == KErrNotFound ) |
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232 { |
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233 // Unsupported by a collection |
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234 // |
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235 CleanupStack::PopAndDestroy( aPlaylist ); |
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236 } |
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237 else |
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238 { |
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239 // Set collection ID and add to array |
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240 // |
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241 aPlaylist->SetTObjectValueL( TMPXAttribute( KMPXMediaIdGeneral, |
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242 EMPXMediaGeneralCollectionId), |
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243 iSupportedTypes[index]->Uid() ); |
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244 if( iNewPlPending ) |
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245 { |
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246 iPropArray->AppendL( aPlaylist ); // owned by array |
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247 } |
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248 else |
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249 { |
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250 iUpdatePropArray->AppendL( aPlaylist ); // owned by array |
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251 } |
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252 CleanupStack::Pop( aPlaylist ); |
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253 } |
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254 } |
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255 else // an error occured |
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256 { |
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257 // Playlist engine should have set this to NULL |
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258 // (Just in case) |
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259 delete aPlaylist; |
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260 } |
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261 |
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262 if( iNewPlPending ) |
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263 { |
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264 iNewPlPending--; |
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265 } |
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266 else // Some update ones pending |
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267 { |
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268 iUpdatePlPending--; |
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269 } |
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270 |
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271 // All done! |
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272 // |
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273 TInt pending = iNewPlPending + iUpdatePlPending; |
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274 if( pending == 0 && iExtracting ) |
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275 { |
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276 CompleteFilesL(); |
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277 iExtracting = EFalse; |
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278 |
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279 iStateObserver.HandleScanStateCompleteL( MMPXFileScanStateObserver::EScanPlaylists, |
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280 KErrNone ); |
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281 } |
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282 // Enough to send to the collection |
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283 // |
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284 else if( iPropArray->Count() + iUpdatePropArray->Count() |
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285 == KExtractionCount ) |
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286 { |
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287 CompleteFilesL(); |
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288 } |
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289 } //lint !e961 |
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290 |
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291 // --------------------------------------------------------------------------- |
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292 // Handles Playlist export to a file |
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293 // --------------------------------------------------------------------------- |
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294 // |
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295 void CMPXPlaylistScanner::HandlePlaylistL(const TDesC& /*aPlaylistUri*/, |
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296 const TInt /*aError*/) |
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297 { |
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298 // not used |
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299 } |
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300 |
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301 // --------------------------------------------------------------------------- |
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302 // Checks if a file is a playlist file |
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303 // --------------------------------------------------------------------------- |
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304 // |
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305 TBool CMPXPlaylistScanner::IsPlaylistFileL( const TDesC& aFile ) |
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306 { |
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307 return iPlEngine->IsPlaylistL( aFile ); |
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308 } |
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309 |
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310 // --------------------------------------------------------------------------- |
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311 // Upload the next list of files |
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312 // --------------------------------------------------------------------------- |
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313 // |
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314 void CMPXPlaylistScanner::CompleteFilesL() |
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315 { |
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316 TInt err(KErrNone); |
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317 if( iPropArray->Count() ) |
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318 { |
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319 TRAP( err, iObserver.AddPlaylistToCollectionL( *iPropArray ) ); |
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320 } |
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321 if( iUpdatePropArray->Count() ) |
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322 { |
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323 TRAP( err, iObserver.UpdatePlaylistToCollectionL( *iUpdatePropArray ) ); |
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324 } |
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325 |
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326 if( err != KErrNone ) |
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327 { |
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328 // Cancel requests and notify end |
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329 iStateObserver.HandleScanStateCompleteL( MMPXFileScanStateObserver::EScanPlaylists, |
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330 err ); |
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331 iPlEngine->CancelRequests(); |
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332 } |
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333 Reset(); |
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334 } |
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335 |