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/*
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* Copyright (c) 2009 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: Music Player song scanner.
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*
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*/
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#include "mpsongscanner.h"
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#include "mpmpxharvesterframeworkwrapper.h"
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#include "mptrace.h"
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/*!
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\class MpSongScanner
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\brief Music Player song scanner.
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Song scanner interfaces with MPX Harvesting Framework to harvest
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music files in the device.
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*/
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/*!
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\fn void scanStarted()
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This signal is emitted when scanning has started.
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*/
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/*!
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\fn void scanCountChanged( int count )
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This signal is emitted to notify that scan count has changed.
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*/
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/*!
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\fn void scanFinished( int error, int itemsAdded )
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Emitted when scanning has finished.
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*/
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/*!
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Constructs the song scanner.
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*/
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MpSongScanner::MpSongScanner( MpMpxHarvesterFrameworkWrapper *wrapper, QObject *parent )
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: QObject( parent ),
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mMpxHarvesterWrapper(wrapper),
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mScanning( false ),
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mAutomaticScan( true )
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{
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TX_ENTRY
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connect( mMpxHarvesterWrapper, SIGNAL( scanStarted() ),
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this, SIGNAL( scanStarted() ), Qt::QueuedConnection );
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connect( mMpxHarvesterWrapper, SIGNAL( scanEnded( int, int ) ),
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this, SLOT( handleScanEnded( int, int ) ), Qt::QueuedConnection );
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connect( mMpxHarvesterWrapper, SIGNAL( scanCountChanged( int ) ),
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this, SIGNAL( scanCountChanged( int ) ), Qt::QueuedConnection );
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// Disk events should be handled asap in order to stop the scan on time
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connect( mMpxHarvesterWrapper, SIGNAL( diskEvent( MpxDiskEvents ) ),
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this, SLOT( handleDiskEvent(MpxDiskEvents) ) );
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TX_EXIT
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}
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/*!
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Destructs the song scanner.
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*/
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MpSongScanner::~MpSongScanner()
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{
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TX_LOG
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}
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/*!
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Initiates song scanning.
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*/
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void MpSongScanner::scan( bool automaticScan )
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{
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TX_ENTRY
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if ( !mScanning ) {
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mScanning = true;
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mAutomaticScan = automaticScan;
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mMpxHarvesterWrapper->scan();
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}
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TX_EXIT
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}
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/*!
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Returns mAutomaticScan value.
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*/
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bool MpSongScanner::isAutomaticScan()
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{
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return mAutomaticScan;
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}
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/*!
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Cancels ongoing song scanning, if any.
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\sa scan()
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*/
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void MpSongScanner::cancelScan()
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{
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TX_ENTRY
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if ( mScanning ) {
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mScanning = false;
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mMpxHarvesterWrapper->cancelScan();
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}
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TX_EXIT
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}
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/*!
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Slot called upon notification from MPX Harvesting FW indicating end of
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scanning process.
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*/
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void MpSongScanner::handleScanEnded( int numItemsAdded, int error )
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{
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TX_ENTRY
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if (error == KErrDiskFull) {
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emit scanFinished( ScanErrorDiskFull, 0 );
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mScanning = false;
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}
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else{
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if( error < 0) {
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emit scanFinished( ScanGeneralError, numItemsAdded );
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}
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else if ( mScanning ) {
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emit scanFinished( ScanErrorNone, numItemsAdded );
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}
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else {
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// Scan canceled
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emit scanFinished( ScanGeneralError, numItemsAdded );
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}
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mScanning = false;
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}
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TX_EXIT
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}
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/*!
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Slot to be called when disk event is received from MPX framework.
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*/
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void MpSongScanner::handleDiskEvent( MpxDiskEvents event )
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{
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TX_ENTRY
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Q_UNUSED( event );
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if ( mScanning ) {
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emit scanFinished( ScanInterrupted, 0 );
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mScanning = false;
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}
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TX_EXIT
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}
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