author | Simon Howkins <simonh@symbian.org> |
Thu, 18 Nov 2010 13:26:55 +0000 | |
branch | RCL_3 |
changeset 69 | 71775bb0f6c0 |
parent 0 | a2952bb97e68 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Class to handle playlist extraction |
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* |
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*/ |
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|
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|
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#include <e32base.h> |
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#include <mpxplaylistengine.h> |
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#include <mpxmedia.h> |
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#include <mpxmediaarray.h> |
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#include <mpxcollectiontype.h> |
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#include <mpxmediageneraldefs.h> |
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#include "mpxplaylistscanner.h" |
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#include "mpxplaylistscanobserver.h" |
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#include "mpxfilescanstateobserver.h" |
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|
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// CONSTANTS |
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const TInt KExtractionCount = 2; |
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|
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// ======== MEMBER FUNCTIONS ======== |
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|
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// --------------------------------------------------------------------------- |
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// Default constructor |
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// --------------------------------------------------------------------------- |
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// |
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CMPXPlaylistScanner::CMPXPlaylistScanner( MMPXPlaylistScanObserver& aObs, |
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MMPXFileScanStateObserver& aStateObs, |
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RPointerArray<CMPXCollectionType>& aTypes ) : |
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iObserver( aObs ), |
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iStateObserver( aStateObs ), |
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iSupportedTypes(aTypes) |
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{ |
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} |
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|
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|
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// --------------------------------------------------------------------------- |
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// 2nd phase constructor |
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// --------------------------------------------------------------------------- |
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// |
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void CMPXPlaylistScanner::ConstructL() |
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{ |
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iPlEngine = CMPXPlaylistEngine::NewL( *this ); |
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iPlList = new(ELeave) CDesCArrayFlat(1); // granularity |
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iPlUpdateList = new(ELeave) CDesCArrayFlat(1); // granularity |
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iPropArray = CMPXMediaArray::NewL(); |
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iUpdatePropArray = CMPXMediaArray::NewL(); |
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} |
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// --------------------------------------------------------------------------- |
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// Two Phased Constructor |
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// --------------------------------------------------------------------------- |
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// |
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CMPXPlaylistScanner* CMPXPlaylistScanner::NewL( |
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MMPXPlaylistScanObserver& aObs, |
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MMPXFileScanStateObserver& aStateObs, |
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RPointerArray<CMPXCollectionType>& aTypes ) |
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{ |
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CMPXPlaylistScanner* self = new(ELeave) CMPXPlaylistScanner( aObs, |
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aStateObs, |
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aTypes ); |
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CleanupStack::PushL( self ); |
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self->ConstructL(); |
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CleanupStack::Pop( self ); |
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return self; |
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} |
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// --------------------------------------------------------------------------- |
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// Virtual destructor |
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// --------------------------------------------------------------------------- |
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// |
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CMPXPlaylistScanner::~CMPXPlaylistScanner() |
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{ |
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if( iPlList ) |
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{ |
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iPlList->Reset(); |
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delete iPlList; |
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} |
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if( iPlUpdateList ) |
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{ |
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iPlUpdateList->Reset(); |
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delete iPlUpdateList; |
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} |
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if( iPropArray ) |
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{ |
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iPropArray->Reset(); |
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} |
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delete iPropArray; |
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if( iUpdatePropArray ) |
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{ |
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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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iNewPlPending = iPlList->Count(); |
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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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TMPXAttribute( KMPXMediaIdGeneral, EMPXMediaGeneralUri)); |
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TParsePtrC parse( file ); |
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TInt index(KErrNotFound); |
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TInt count( iSupportedTypes.Count() ); |
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for (TInt i=0; i <count; ++i) |
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220 |
{ |
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TInt index2(KErrNotFound); |
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const CDesCArray& exts = iSupportedTypes[i]->Extensions(); |
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if (!exts.FindIsq(parse.Ext(), index2)) |
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224 |
{ // found |
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index = i; |
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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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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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CleanupStack::PopAndDestroy( aPlaylist ); |
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236 |
} |
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237 |
else |
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238 |
{ |
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// Set collection ID and add to array |
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240 |
// |
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aPlaylist->SetTObjectValueL( TMPXAttribute( KMPXMediaIdGeneral, |
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EMPXMediaGeneralCollectionId), |
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iSupportedTypes[index]->Uid() ); |
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if( iNewPlPending ) |
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245 |
{ |
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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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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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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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// (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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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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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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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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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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TRAP( err, iObserver.UpdatePlaylistToCollectionL( *iUpdatePropArray ) ); |
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} |
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|
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if( err != KErrNone ) |
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{ |
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// Cancel requests and notify end |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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iStateObserver.HandleScanStateCompleteL( MMPXFileScanStateObserver::EScanPlaylists, |
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err ); |
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iPlEngine->CancelRequests(); |
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} |
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Reset(); |
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} |
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335 |