diff -r 26a1709b9fec -r 14979e23cb5e mpserviceplugins/m3uplaylistplugin/inc/mpxm3uplaylistimporter.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpserviceplugins/m3uplaylistplugin/inc/mpxm3uplaylistimporter.h	Tue Aug 31 15:12:29 2010 +0300
@@ -0,0 +1,234 @@
+/*
+* Copyright (c) 2006 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:  Imports a m3u playlist file
+*
+*/
+
+
+#ifndef MPXM3UPLAYLISTIMPORTER_H
+#define MPXM3UPLAYLISTIMPORTER_H
+
+#include <mpxplaylistpluginobserver.h>
+#include <f32file.h>
+#include <charconv.h>
+
+
+class CMPXMediaArray;
+
+/**
+*  CMPXM3uPlaylistImporter imports a m3u playlist file. Each instance can
+*  only handle the import of one m3u file and the processing starts as
+*  soon as the object is instantiated.
+*
+*  When processing is complete, CMPXM3uPlaylistImporter will invoke
+*  callback through MMPXPlaylistPluginObserver interface. Once completed,
+*  the importing service cannot be restarted. A new instance is required
+*  if the client wishes to import another m3u playlist file.
+*/
+class CMPXM3uPlaylistImporter : public CActive
+    {
+public: // Constructors and destructor
+    
+    /**
+    * Two-phased constructor
+    *
+    * @param aFs a file session handle
+    * @param aObserver reference to the playlist plugin observer
+    * @param aPlaylistUri URI of the playlist file to be internalized
+    * @param aTopCharacterSet top character set for the current locale
+    * @param aAvailableCharacterSet available character set in the system
+    * @param aStatus caller's request status
+    * @return object of constructed
+    */
+    IMPORT_C static CMPXM3uPlaylistImporter* NewL(
+                RFs* aFs,
+                MMPXPlaylistPluginObserver* aObserver,
+                const TDesC& aPlaylistUri,
+                const CArrayFix<CCnvCharacterSetConverter::SCharacterSet>& aTopCharacterSet,
+                const CArrayFix<CCnvCharacterSetConverter::SCharacterSet>& aAvailableCharacterSet,
+                TRequestStatus& aStatus );
+
+    /**
+    * Destructor
+    */
+    IMPORT_C virtual ~CMPXM3uPlaylistImporter();
+    
+protected:
+
+    /**
+    * Constructor
+    *
+    * @param aFs a file session handle
+    * @param aObserver reference to the playlist plugin observer
+    * @param aTopCharacterSet top character set for the current locale
+    * @param aAvailableCharacterSet available character set in the system
+    * @param aStatus caller's request status
+    */
+    IMPORT_C CMPXM3uPlaylistImporter(
+                RFs* aFs,
+                MMPXPlaylistPluginObserver* aObserver,
+                const CArrayFix<CCnvCharacterSetConverter::SCharacterSet>& aTopCharacterSet,
+                const CArrayFix<CCnvCharacterSetConverter::SCharacterSet>& aAvailableCharacterSet,
+                TRequestStatus& aStatus );
+    
+    /**
+    * 2nd phase constructor
+    *
+    * @param aPlaylistUri URI of the playlist file to be internalized
+    */
+    IMPORT_C virtual void ConstructL( const TDesC& aPlaylistUri );
+   
+    /**
+    *  From CActive
+    *  Handles an active object's request completion event
+    */
+    IMPORT_C virtual void RunL();
+
+    /**
+    * From CActive
+    * Implements cancellation of an outstanding request.
+    */
+    IMPORT_C virtual void DoCancel();
+
+    /**
+    * Does a step of the task
+    */
+    IMPORT_C virtual void DoTaskStep();
+    
+    /**
+    * Does a step of the task, leave if there is an error
+    */
+    IMPORT_C virtual void DoTaskStepL();
+
+private:
+
+    /**
+    * Reads data from playlist file to the buffer
+    */
+    void ReadPlaylistFileToBufferL();
+    
+    /**
+    * Auto detects the character encoding from the supplied character
+    * set
+    * @param aSample a sample of the file
+    * @param aCharSetId auto-detected character set for the supplied
+    *        sample
+    * @param aCharacterSet a character set to detect the encoding from
+    * @return KErrNone if a character set is found; otherwise
+    *         KErrNotFound.
+    */
+    TInt DetectCharacterSetL(
+        const TDesC8& aSample,
+        const CArrayFix<CCnvCharacterSetConverter::SCharacterSet>& aCharacterSet,
+        TUint& aCharSetId);
+    
+    /**
+    * Parses the buffer where playlist file was read to.
+    */
+    void ParsePlaylistBufferL(
+            CMPXMediaArray& aPlaylist,
+            TInt& aInvalidItemCount);
+
+    /**
+    * Reads next line from iBuffer and stores it to iLine. Returns EFalse
+    * if there are no more new lines.
+    */
+    TBool ReadNextLineL();
+
+    /**
+    * Decides what to do with an iLine read from iBuffer
+    */
+    void ProcessLineL(
+            CMPXMediaArray& aPlaylist,
+            TInt& aInvalidItemCount);
+
+    /**
+    * Parses path or extended info from an iLine and stores them to iItem
+    */
+    TInt ParseLineL(
+            CMPXMedia* aItem,
+            TInt& aInvalidItemCount);
+
+    /**
+    * Parses and returns an absolute path if aPath is relative to playlist
+    * file's path. If path is not valid or it doesn't exist, error code is
+    * returned in aError.
+    *
+    * caller assumes ownership of the returned HBufC
+    */
+    HBufC* ParseAbsolutePathLC(
+            const TDesC& aPath,
+            TInt& aError);
+
+    /**
+    * compose CMPXMedia to be sent back to the client
+    */
+    void ComposePlaylistL();
+    
+    /**
+    * Reset data members for after completing the current request
+    */
+    void Cleanup();
+    
+    /**
+    * Notify client of the specified error through MMPXPlaylistPluginObserver
+    * interface
+    */
+    void NotifyClient(TInt aError);
+
+protected:
+
+    enum TMPXM3UImporterState
+        {
+        EMPXM3UReadBufferWithAutoDetectEncoding,
+        EMPXM3UParseWithAutoDetectEncoding,
+        EMPXM3UComposePlaylistMedia
+        };
+                         
+protected:    // Data
+
+    HBufC*                              iBuffer;
+    TPtrC                               iBufferPtr;
+
+    TPtrC                               iPlaylistFilePath;
+
+    HBufC*                              iLine;
+
+    RFs*                                iFs;      // not owned
+    MMPXPlaylistPluginObserver*         iObserver;// not owned
+    
+    TBool                               iExtendedFormat;
+    
+    TRequestStatus*                     iCallerStatus;
+
+    TInt                                iEndLineNumber;  
+    TInt                                iCurrentLineNumber;
+    TBool                               iMoreToDo;
+    TBool                               iEndOfFile;
+    CMPXMedia*                          iItem;
+
+    CMPXMediaArray*                     iAutoEncodingPlaylistArray;
+    TInt                                iAutoEncodingInvalidItems;
+    
+    CMPXMedia*                          iPlaylist;
+    
+    TMPXM3UImporterState                iState;
+    
+    const CArrayFix<CCnvCharacterSetConverter::SCharacterSet>&     iTopCharacterSet;
+    const CArrayFix<CCnvCharacterSetConverter::SCharacterSet>&     iAvailableCharacterSet;
+    };
+
+#endif   // MPXM3UPLAYLISTIMPORTER_H
+            
+