--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/qtinternetradio/irqsonghistory/inc/irqsonghistoryengine.h Mon Apr 19 14:01:53 2010 +0300
@@ -0,0 +1,139 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+#ifndef IRQSONGHISTORYENGINE_H_
+#define IRQSONGHISTORYENGINE_H_
+
+#include <QObject>
+
+class IRQMetaData;
+class IRQPreset;
+class IRQSongHistoryInfo;
+class CIRSongHistoryDb;
+class IRQSongInfo;
+
+/**
+* Engine component for Internet Radio SongHistory.
+*/
+class IRQSongHistoryEngine : public QObject
+{
+ Q_OBJECT
+
+public:
+
+ IMPORT_C static IRQSongHistoryEngine* openInstance();
+ IMPORT_C void closeInstance();
+
+ /**
+ * Get all history from daba base
+ * @param QList<IRQSongHistoryInfo *>
+ */
+ IMPORT_C void getAllHistory(QList<IRQSongHistoryInfo *>& aSongHistoryArr);
+
+ /**
+ * this is songs' get, the above will be changed to the stations only
+ */
+ IMPORT_C void getAllSongHistory(QList<IRQSongInfo *>& aSongHistoryArr);
+
+ /**
+ * Clear all history in data base
+ */
+ IMPORT_C int clearAllHistory();
+
+ IMPORT_C int clearAllSongHistory();
+
+ /**
+ * Called by the UI when a particular channel has been removed from the ISDS.
+ */
+ IMPORT_C void syncHistory(int aChannelId);
+
+ /**
+ * Called by the UI when a particular channel has been changed in the ISDS.
+ */
+
+ IMPORT_C void updateSongHistoryDb(int aChannelId,
+ const QString& aChannelName,
+ const QString& aChannelUrl,
+ const QString& aImageUrl,
+ const QString& aMusicFlag);
+
+ /**
+ * Connected with play controller with the song name changed.
+ * @param aMetaData The meta data contains song name, artist and bitrate.
+ * @param aPreset The preset contains other information.
+ */
+ IMPORT_C void handleMetaDataReceived(const IRQMetaData& aMetaData, const IRQPreset& aPreset);
+ /**
+ * Connected with play controller with the song name changed.
+ * @param aMetaData The meta data contains song name, artist and bitrate.
+ * @param aMusicshopStatus The music shop status of the song
+ */
+ IMPORT_C void handleSongMetaDataReceived(const IRQMetaData& aMetaData, QString& aMusicshopStatus);
+
+ /*
+ * delete one item from the station history db
+ * @param aIndex the index of the item need deleted
+ */
+ IMPORT_C bool deleteOneItem(int aIndex);
+
+private:
+
+ enum TSongHistoryItemChange
+ {
+ ENOCHANGE = 0,
+ ECHANNELCHANGED,
+ EMETADATACHANGED,
+ EBLANKENTRIES
+ };
+
+private:
+
+ /**
+ * Creates IRQSongHistoryEngine instance
+ */
+ static IRQSongHistoryEngine* createInstanceL();
+
+ void constructL();
+
+ /**
+ * Constructor.
+ */
+ IRQSongHistoryEngine();
+
+ /**
+ * Destructor.
+ */
+ ~IRQSongHistoryEngine();
+
+ TSongHistoryItemChange detectSongHistoryItemChangesL(const IRQMetaData& aMetaData, const QString& aChannelName);
+
+ void handleMetaDataReceivedL(const IRQMetaData& aMetaData, const IRQPreset& aPreset);
+ void getAllHistoryL(QList<IRQSongHistoryInfo *>& aSongHistoryArr);
+ void handleSongMetaDataReceivedL(const IRQMetaData& aMetaData, QString& aMusicshopStatus);
+ void getAllSongHistoryL(QList<IRQSongInfo *>& aSongHistoryArr);
+
+private:
+
+ /** An instance of songhistory database. */
+ CIRSongHistoryDb* iSongHistoryDb;
+
+ /**
+ * Number of objects currently referring to the singleton object IRQSongHistoryEngine
+ */
+ int iSingletonInstances;
+};
+
+#endif //IRQSONGHISTORYENGINE_H_