codhandler/codeng/inc/CodLoadObserver.h
author Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
Mon, 30 Mar 2009 12:54:55 +0300
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/*
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* Copyright (c) 2002 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 the License "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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*      Declaration of class MCodLoadObserver.   
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*      
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*
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*/
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#ifndef COD_LOAD_OBSERVER_H
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#define COD_LOAD_OBSERVER_H
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// FORWARD DECLARATION
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class CRoapData;
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// INCLUDES
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#include <e32std.h>
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// CLASS DECLARATION
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/**
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* Mixin class to observe COD handling (progress, result etc.)
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*/
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class MCodLoadObserver
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    {
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    public:     // COD handling progress.
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        /**
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        * Get download root path.
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        * Leave with KErrCancel if query is cancelled.
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        * @param aRootPath Root path returned here.
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        */
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        virtual void GetRootPathL( TDes& aRootPath ) = 0;
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        /**
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        * Starting load (fetch content or error-notify).
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        * @param aStatusCode HTTP status code.
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        * - 900 (Success) indicates start of content load.
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        * - Other values indicate start of error report.
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        */
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        virtual void StartLoadL( TInt aStatusCode ) = 0;
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        /**
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        * Cancelling content load started. Not called if cancelling error
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        * report.
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        */
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        virtual void StartCancelL() = 0;
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        /**
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        * Load progress update.
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        * @param aFinalValue Final progress value.
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        * @param aCurrentValue Current progress value.
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        */
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        virtual void ProgressL( TInt aFinalValue, TInt aCurrentValue ) = 0;
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        /**
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        * Processing ended.
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        * Note that if processing does not include loading, this method can be
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        * called without a preceding StartLoadL call.
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        * @param aStatusCode HTTP status code (aError mapped to HTTP status
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        * code).
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        * @param aError Error code of result. (The Set(), Accept() or Reject()
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        * request to CodEng will also complete with this value.)
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        */
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        virtual void Done( TInt aStatusCode, TInt aError ) = 0;
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        /**
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        * Set Connection Error
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        * @param aError Connection Error .
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        */
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		virtual void SetConnError( TInt aError) = 0;
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        /**
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        * Connection Error
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        * return: Connection Error .
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        */
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		virtual TInt ConnError() = 0;
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        /**
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        * Progresive download is available
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		*/
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		virtual void PdPlayAvailable() = 0;
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        /**
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        * Set ActiveDownload is available
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		*/
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		virtual void SetActiveDownload( ) = 0;
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    public:     // HTTP & OTA related progress.
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        /**
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        * Get confirmation for creating network connection.
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        * @return ETrue if connection can be created.
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        */
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        virtual TBool ConfirmConnectL() = 0;
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        /**
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        * Opening a connection.
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        * @param aIap AP to be used for creating the connection.
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        */
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        virtual void StartConnect( TUint32 aIap ) = 0;
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        /**
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        * Connected.
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        */
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        virtual void EndConnect() = 0;
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        /**
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        * Authenticate user.
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        * @param aHost Host.
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        * @param aRealm Realm.
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        * @param aProxyAuth ETrue if this is a proxy authentication.
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        * @param aUsername Return username here.
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        * @param aPassword Return password here.
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        * @return ETrue if auth is OK, EFalse if cancelled.
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        */
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        virtual TBool UserAuthL
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            (
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            const TDesC& aHost,
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            const TDesC& aRealm,
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            TBool aProxyAuth,
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            TDes& aUsername,
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            TDes& aPassword
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            ) = 0;
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        /**
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        * Displays Info message "Waiting for license" 
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        */
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        virtual void WaitForLicenseL() = 0;
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    public:     // ROAP related.
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        /**
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        * ROAP Trigger parsed (success or error).
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        * @param aData ROAP Trigger data.
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        */
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        virtual void RoapTriggerParsedL( const CRoapData& aData ) = 0;
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    public:
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        /**
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        * To indicate the download is paused
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        */
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        virtual void DownloadPaused() = 0;
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        /**
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        * To indicate the download is resumed and ready for PD
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        */
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        virtual void DownloadResumedPdAvailable() = 0;
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        /**
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        * To update the server about whether or not download is pausable
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        */
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        virtual void UpdatePausable( TBool aPausable ) = 0;
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        /**
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        * To update the server about updated media info
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        */
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        virtual void UpdateMediaInfoL() = 0;
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        /**
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        * To update the server about updated track
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        */
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        virtual void UpdateTrackInfoL() = 0;
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        /**
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        * 
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        * To handle PostResponseUrlL as part of metering response
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        * @param aPrUrl: The PostResponseURL
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        * @return void
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        *  
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        */
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        virtual void HandleRoapPostResponseUrlL( const TDesC8& aPrUrl ) = 0;
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        /**
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        * To update the server about next media object being downloaded.
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        */        
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        virtual void MediaObjectNameChanged() = 0;
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        /**
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        * To update the server about content type.
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        */        
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        virtual void ContentTypeChanged() = 0;
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    };
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#endif /* def COD_LOAD_OBSERVER_H */