author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 17 Sep 2010 08:27:59 +0300 | |
changeset 16 | 5723da102db1 |
parent 8 | 3b03c28289e6 |
permissions | -rw-r--r-- |
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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: |
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* |
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*/ |
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#ifndef IRQSONGHISTORYENGINE_H_ |
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#define IRQSONGHISTORYENGINE_H_ |
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#include <QObject> |
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class IRQMetaData; |
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class IRQPreset; |
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class IRQSongHistoryInfo; |
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class CIRSongHistoryDb; |
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class IRQSongInfo; |
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/** |
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* Engine component for Internet Radio SongHistory. |
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*/ |
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class IRQSongHistoryEngine : public QObject |
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{ |
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Q_OBJECT |
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public: |
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IMPORT_C static IRQSongHistoryEngine* openInstance(); |
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IMPORT_C void closeInstance(); |
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/** |
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* Get all history from daba base |
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* @param QList<IRQSongHistoryInfo *> |
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*/ |
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IMPORT_C void getAllHistory(QList<IRQSongHistoryInfo *>& aSongHistoryArr); |
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/** |
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* this is songs' get, the above will be changed to the stations only |
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*/ |
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IMPORT_C void getAllSongHistory(QList<IRQSongInfo *>& aSongHistoryArr); |
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/** |
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* Clear all history in data base |
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*/ |
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IMPORT_C int clearAllHistory(); |
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IMPORT_C int clearAllSongHistory(); |
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/** |
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* Called by the UI when a particular channel has been removed from the ISDS. |
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*/ |
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IMPORT_C void syncHistory(int aChannelId); |
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/** |
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* Called by the UI when a particular channel has been changed in the ISDS. |
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*/ |
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IMPORT_C void updateSongHistoryDb(int aChannelId, |
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const QString& aChannelName, const QString& aChannelUrl, |
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const QString& aImageUrl, const QString& aGenreName, |
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const QString& aCountryName, const QString& aLanguageName, |
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const QString& aMusicFlag); |
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/** |
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* Connected with play controller with the song name changed. |
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* @param aMetaData The meta data contains song name, artist and bitrate. |
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* @param aPreset The preset contains other information. |
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*/ |
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IMPORT_C void handleMetaDataReceived(const IRQMetaData& aMetaData, const IRQPreset& aPreset); |
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/** |
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* Connected with play controller with the song name changed. |
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* @param aMetaData The meta data contains song name, artist and bitrate. |
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* @param aMusicshopStatus The music shop status of the song |
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*/ |
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IMPORT_C void handleSongMetaDataReceived(const IRQMetaData& aMetaData, const IRQPreset& preset); |
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/* |
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* delete one item from the station history db |
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* @param aIndex the index of the item need deleted |
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*/ |
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IMPORT_C bool deleteOneItem(int aIndex); |
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/* |
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* delete one item from the song history db |
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* @param aIndex the index of the item need deleted |
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*/ |
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IMPORT_C bool deleteOneSongHistoryItem(int aIndex); |
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private: |
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enum TSongHistoryItemChange |
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{ |
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ENOCHANGE = 0, |
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ECHANNELCHANGED, |
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EMETADATACHANGED, |
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EBLANKENTRIES |
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}; |
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private: |
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/** |
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* Creates IRQSongHistoryEngine instance |
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*/ |
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static IRQSongHistoryEngine* createInstanceL(); |
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void constructL(); |
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/** |
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* Constructor. |
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*/ |
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IRQSongHistoryEngine(); |
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/** |
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* Destructor. |
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*/ |
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~IRQSongHistoryEngine(); |
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TSongHistoryItemChange detectSongHistoryItemChangesL(const IRQMetaData& aMetaData, const QString& aChannelName); |
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void handleMetaDataReceivedL(const IRQMetaData& aMetaData, const IRQPreset& aPreset); |
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void getAllHistoryL(QList<IRQSongHistoryInfo *>& aSongHistoryArr); |
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void handleSongMetaDataReceivedL(const IRQMetaData& aMetaData, const IRQPreset& aPreset); |
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void getAllSongHistoryL(QList<IRQSongInfo *>& aSongHistoryArr); |
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private: |
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/** An instance of songhistory database. */ |
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CIRSongHistoryDb* iSongHistoryDb; |
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/** |
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* Number of objects currently referring to the singleton object IRQSongHistoryEngine |
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*/ |
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int iSingletonInstances; |
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}; |
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#endif //IRQSONGHISTORYENGINE_H_ |