author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 15:41:40 +0300 | |
branch | RCL_3 |
changeset 24 | 6c1dfe4da5dd |
parent 13 | 4740b34b83ce |
child 25 | 63223d4fd956 |
permissions | -rw-r--r-- |
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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: Active object to extract metadata |
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* Version : %version: da1mmcf#16.2.3.1.5.2.1 % |
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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 <f32file.h> |
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#include <badesca.h> |
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#include <apgcli.h> |
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#include <mpxmedia.h> |
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#include <mpxmediaarray.h> |
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#include <mpxcollectionpath.h> |
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#include <mpxcollectiontype.h> |
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#include <mpxdrmmediautility.h> |
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#include <mpxlog.h> |
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#include <mpxmetadataextractor.h> |
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#include "mpxmetadatascanner.h" |
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#include "mpxmetadatascanobserver.h" |
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#include "mpxfilescanstateobserver.h" |
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// CONSTANTS |
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const TInt KLoopCount = 10; |
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// ======== MEMBER FUNCTIONS ======== |
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// --------------------------------------------------------------------------- |
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// Private Constructor |
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// --------------------------------------------------------------------------- |
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// |
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CMPXMetadataScanner::CMPXMetadataScanner( MMPXMetadataScanObserver& aObs, |
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MMPXFileScanStateObserver& aStateObs ) |
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: CActive( EPriorityNull ), |
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iExtractType( EMaxFile ), |
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iObserver( aObs ), |
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iStateObserver( aStateObs ) |
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{ |
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CActiveScheduler::Add( this ); |
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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 CMPXMetadataScanner::ConstructL( RFs& aFs, |
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RApaLsSession& aAppArc, |
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RPointerArray<CMPXCollectionType>& aTypesAry ) |
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{ |
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iExtractor = CMPXMetadataExtractor::NewL( aFs, aAppArc, aTypesAry ); |
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iTargetProps = 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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CMPXMetadataScanner* CMPXMetadataScanner::NewL( RFs& aFs, |
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RApaLsSession& aAppArc, |
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RPointerArray<CMPXCollectionType>& aTypesAry, |
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MMPXMetadataScanObserver& aObs, |
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MMPXFileScanStateObserver& aStateObs ) |
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{ |
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CMPXMetadataScanner* self = CMPXMetadataScanner::NewLC( aFs, |
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aAppArc, |
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aTypesAry, |
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aObs, |
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aStateObs ); |
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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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// Two-Phased Constructor |
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// --------------------------------------------------------------------------- |
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// |
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CMPXMetadataScanner* CMPXMetadataScanner::NewLC( RFs& aFs, |
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RApaLsSession& aAppArc, |
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RPointerArray<CMPXCollectionType>& aTypesAry, |
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MMPXMetadataScanObserver& aObs, |
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MMPXFileScanStateObserver& aStateObs ) |
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{ |
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CMPXMetadataScanner* self = new( ELeave ) CMPXMetadataScanner( aObs, |
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aStateObs ); |
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CleanupStack::PushL( self ); |
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self->ConstructL( aFs, aAppArc, aTypesAry ); |
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return self; |
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} |
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|
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105 |
|
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// --------------------------------------------------------------------------- |
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// Virtual Destructor |
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// --------------------------------------------------------------------------- |
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// |
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CMPXMetadataScanner::~CMPXMetadataScanner() |
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{ |
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Cancel(); |
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Reset(); |
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iNewFiles.Close(); |
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iModifiedFiles.Close(); |
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|
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delete iTargetProps; |
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|
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delete iExtractor; |
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} |
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121 |
|
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// --------------------------------------------------------------------------- |
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// Resets this object |
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// --------------------------------------------------------------------------- |
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// |
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void CMPXMetadataScanner::Reset() |
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{ |
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iNewFiles.ResetAndDestroy(); |
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iModifiedFiles.ResetAndDestroy(); |
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iTargetProps->Reset(); |
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} |
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|
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// --------------------------------------------------------------------------- |
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// Starts the metadata extraction process |
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// --------------------------------------------------------------------------- |
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// |
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void CMPXMetadataScanner::Start() |
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{ |
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MPX_FUNC("MPXMetadataScanner::StartL()"); |
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if( !IsActive() ) |
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{ |
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// Setup |
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iAryPos = 0; |
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iExtractType = ENewFiles; |
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iExtracting = ETrue; |
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iTargetProps->Reset(); |
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|
0
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// Set Active |
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iStatus = KRequestPending; |
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SetActive(); |
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TRequestStatus* status = &iStatus; |
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User::RequestComplete( status, KErrNone ); |
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} |
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} |
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// --------------------------------------------------------------------------- |
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// Stops the metadata extraction process |
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// --------------------------------------------------------------------------- |
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158 |
// |
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void CMPXMetadataScanner::Stop() |
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{ |
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MPX_FUNC("MPXMetadataScanner::Stop()"); |
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DoCancel(); |
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} |
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164 |
|
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// --------------------------------------------------------------------------- |
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// Add a file to the scanning list |
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// --------------------------------------------------------------------------- |
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168 |
// |
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void CMPXMetadataScanner::AddNewFileToScanL( const TDesC& aFile ) |
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{ |
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MPX_FUNC("MPXMetadataScanner::AddNewFileToScanL()"); |
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HBufC* file = aFile.AllocLC(); |
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iNewFiles.AppendL( file ); |
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CleanupStack::Pop( file ); |
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} |
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176 |
|
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177 |
// --------------------------------------------------------------------------- |
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// Add a file to the modified list |
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// --------------------------------------------------------------------------- |
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180 |
// |
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void CMPXMetadataScanner::AddModifiedFileToScanL( const TDesC& aFile ) |
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182 |
{ |
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MPX_FUNC("MPXMetadataScanner::AddModifiedFileToScanL()"); |
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HBufC* file = aFile.AllocLC(); |
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iModifiedFiles.AppendL( file ); |
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CleanupStack::Pop( file ); |
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} |
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188 |
|
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189 |
// --------------------------------------------------------------------------- |
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190 |
// Extract media properties for a file |
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191 |
// --------------------------------------------------------------------------- |
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192 |
// |
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CMPXMedia* CMPXMetadataScanner::ExtractFileL( const TDesC& aFile ) |
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194 |
{ |
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MPX_FUNC("MPXMetadataScanner::ExtractFileL()"); |
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CMPXMedia* media; |
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iExtractor->CreateMediaL( aFile, media ); |
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return media; |
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199 |
} |
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200 |
|
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201 |
// --------------------------------------------------------------------------- |
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202 |
// Cancel the operation |
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203 |
// --------------------------------------------------------------------------- |
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204 |
// |
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205 |
void CMPXMetadataScanner::DoCancel() |
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206 |
{ |
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207 |
MPX_FUNC("MPXMetadataScanner::DoCancel()"); |
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208 |
if( iExtracting ) |
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209 |
{ |
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iExtractor->CancelRequest(); |
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Reset(); |
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// Callback to observer |
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TRAP_IGNORE( iStateObserver.HandleScanStateCompleteL( MMPXFileScanStateObserver::EScanMetadata, |
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KErrCancel ) ); |
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iExtracting = EFalse; |
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} |
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} |
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|
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// --------------------------------------------------------------------------- |
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// RunL function |
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// --------------------------------------------------------------------------- |
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// |
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void CMPXMetadataScanner::RunL() |
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{ |
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MPX_FUNC("CMPXMetadataScanner::RunL()"); |
0
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if ( iExtracting ) |
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{ |
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TRAPD( err, DoExtractL() ); |
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if ( err ) |
0
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{ |
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MetadataScannerComplete( err ); |
0
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} |
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} |
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} |
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235 |
|
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// --------------------------------------------------------------------------- |
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// Extract metadata |
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// --------------------------------------------------------------------------- |
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// |
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void CMPXMetadataScanner::DoExtractL() |
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{ |
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MPX_FUNC("CMPXMetadataScanner::DoExtractL()"); |
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243 |
|
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RPointerArray<HBufC>* source = GetSource(); |
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if ( source->Count() ) |
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{ |
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// Call asynchronous CreateMedia to get metadata. |
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iExtractor->CreateMediaAsyncL( *(*source)[iAryPos], this ); |
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} |
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else |
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{ |
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// Source array is empty, go to next array. |
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MPX_DEBUG2("CMPXMetadataScanner::DoExtractL Source array is empty ExtractType = %d.", iExtractType); |
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iAryPos = 0; |
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iExtractType++; |
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RunAgain(); |
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} |
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} |
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259 |
|
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// --------------------------------------------------------------------------- |
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// Callback for CreateMediaAsyncL |
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// --------------------------------------------------------------------------- |
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// |
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void CMPXMetadataScanner::HandleCreateMediaComplete( CMPXMedia* aMedia, TInt aError ) |
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{ |
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MPX_FUNC("CMPXMetadataScanner::HandleCreateMediaComplete()"); |
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MPX_DEBUG2("CMPXMetadataScanner::HandleCreateMediaComplete error = %d", aError); |
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TInt err = KErrNone; |
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|
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// Scanning cancelled |
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if ( !iExtracting ) |
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{ |
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delete aMedia; |
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return; |
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} |
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|
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// Add media to target array. |
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if ( ( aError == KErrNone ) && |
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( aMedia != NULL ) ) |
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{ |
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TRAP( err, iTargetProps->AppendL( aMedia ) ); |
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if ( err ) |
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{ |
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delete aMedia; |
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} |
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} |
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287 |
|
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iAryPos++; |
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if( iAryPos >= GetSource()->Count() ) |
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{ |
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// Finished with this array, go to the next array. |
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iAryPos = 0; |
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TRAP( err, AddToCollectionL() ); |
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if ( err ) |
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{ |
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MetadataScannerComplete( err ); |
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} |
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iExtractType++; |
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} |
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else |
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{ |
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// Batch update collection DBs. |
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if ( iTargetProps->Count() >= KLoopCount ) |
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{ |
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TRAP( err, AddToCollectionL() ); |
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if ( err ) |
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{ |
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MetadataScannerComplete( err ); |
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} |
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} |
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} |
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|
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RunAgain(); |
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} |
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|
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316 |
// --------------------------------------------------------------------------- |
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317 |
// Get source array |
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318 |
// --------------------------------------------------------------------------- |
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319 |
// |
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RPointerArray<HBufC>* CMPXMetadataScanner::GetSource() |
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321 |
{ |
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322 |
MPX_FUNC("CMPXMetadataScanner::GetSource()"); |
0
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323 |
TExtractType curType = (TExtractType) iExtractType; |
13
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324 |
|
0
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325 |
if( curType == ENewFiles ) |
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326 |
{ |
13
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return &iNewFiles; |
0
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328 |
} |
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else if( curType == EModFiles ) |
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330 |
{ |
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331 |
return &iModifiedFiles; |
0
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332 |
} |
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333 |
else |
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334 |
return NULL; |
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335 |
} |
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336 |
|
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337 |
// --------------------------------------------------------------------------- |
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338 |
// Is metadata scanner done |
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339 |
// --------------------------------------------------------------------------- |
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340 |
// |
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341 |
TBool CMPXMetadataScanner::IsDone() |
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342 |
{ |
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343 |
MPX_FUNC("CMPXMetadataScanner::IsDone()"); |
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TExtractType curType = (TExtractType) iExtractType; |
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345 |
|
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346 |
TBool done = EFalse; |
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347 |
if ( curType >= EMaxFile ) |
0
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348 |
{ |
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done = ETrue; |
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350 |
} |
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351 |
return done; |
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352 |
} |
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|
353 |
|
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354 |
// --------------------------------------------------------------------------- |
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355 |
// Run Active Object again |
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356 |
// --------------------------------------------------------------------------- |
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357 |
// |
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358 |
void CMPXMetadataScanner::RunAgain() |
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|
359 |
{ |
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360 |
MPX_FUNC("CMPXMetadataScanner::RunAgain()"); |
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361 |
if ( IsDone() ) |
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362 |
{ |
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363 |
MetadataScannerComplete( KErrNone ); |
0
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364 |
} |
13
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|
365 |
else |
0
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366 |
{ |
13
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|
367 |
MPX_DEBUG1("CMPXMetadataScanner::RunAgain -- Run again"); |
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368 |
iStatus = KRequestPending; |
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369 |
SetActive(); |
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TRequestStatus* status = &iStatus; |
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371 |
User::RequestComplete( status, KErrNone ); |
0
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372 |
} |
13
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373 |
} |
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|
374 |
|
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375 |
// --------------------------------------------------------------------------- |
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376 |
// Add metadata to collection |
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377 |
// --------------------------------------------------------------------------- |
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|
378 |
// |
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379 |
void CMPXMetadataScanner::AddToCollectionL() |
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|
380 |
{ |
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|
381 |
MPX_FUNC("CMPXMetadataScanner::AddToCollectionL()"); |
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|
382 |
TExtractType curType = (TExtractType) iExtractType; |
0
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|
383 |
|
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|
384 |
switch( curType ) |
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|
385 |
{ |
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|
386 |
case ENewFiles: |
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|
387 |
{ |
13
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|
388 |
if( iTargetProps->Count() ) |
0
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|
389 |
{ |
13
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|
390 |
iObserver.AddFilesToCollectionL( *iTargetProps ); |
0
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|
391 |
} |
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Revision: 200949
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|
392 |
break; |
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Revision: 200949
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|
393 |
} |
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Revision: 200949
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|
394 |
case EModFiles: |
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|
395 |
{ |
13
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|
396 |
if( iTargetProps->Count() ) |
0
a2952bb97e68
Revision: 200949
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|
397 |
{ |
13
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|
398 |
iObserver.UpdatesFilesInCollectionL( *iTargetProps ); |
0
a2952bb97e68
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|
399 |
} |
a2952bb97e68
Revision: 200949
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|
400 |
break; |
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Revision: 200949
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changeset
|
401 |
} |
a2952bb97e68
Revision: 200949
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changeset
|
402 |
default: |
a2952bb97e68
Revision: 200949
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|
403 |
ASSERT(0); |
a2952bb97e68
Revision: 200949
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changeset
|
404 |
} |
13
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Revision: 201015
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0
diff
changeset
|
405 |
iTargetProps->Reset(); |
0
a2952bb97e68
Revision: 200949
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|
406 |
} |
13
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Revision: 201015
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0
diff
changeset
|
407 |
|
4740b34b83ce
Revision: 201015
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0
diff
changeset
|
408 |
// --------------------------------------------------------------------------- |
4740b34b83ce
Revision: 201015
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|
409 |
// Complete metadata scanner |
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|
410 |
// --------------------------------------------------------------------------- |
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Revision: 201015
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|
411 |
// |
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Revision: 201015
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|
412 |
void CMPXMetadataScanner::MetadataScannerComplete( TInt aError ) |
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Revision: 201015
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|
413 |
{ |
4740b34b83ce
Revision: 201015
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changeset
|
414 |
MPX_FUNC("CMPXMetadataScanner::MetadataScannerCompleteL()"); |
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|
415 |
MPX_DEBUG2("CMPXMetadataScanner::MetadataScannerCompleteL error = %d", aError); |
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diff
changeset
|
416 |
|
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Revision: 201015
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|
417 |
// Callback to observer |
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Revision: 201015
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|
418 |
TRAP_IGNORE( iStateObserver.HandleScanStateCompleteL( MMPXFileScanStateObserver::EScanMetadata, aError ) ); |
4740b34b83ce
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|
419 |
iExtracting = EFalse; |
4740b34b83ce
Revision: 201015
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|
420 |
Reset(); |
4740b34b83ce
Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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