/*

* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

*      Declaration of Scheme handler interface implementation for wtai:// scheme

*      

*

*/

#ifndef WTAI_HANDLER_H

#define WTAI_HANDLER_H

// INCLUDES

#include "BaseHandler.h"

#include "BrowserTelService.h"

#include <e32base.h>

// FORWARD DECLARATION

// CLASS DECLARATION

/**

* Scheme Handler IF implementation class for wtai scheme

*/

class CWtaiHandler : public CBaseHandler, public MBrowserTelServiceObserver

    {

    public:     // Constructors and destructor

        /**

        * Two phased constructor. Leaves on failure.

        * @param - aUrl

        * @return The created object.

        */      

		static CWtaiHandler* NewL( const TDesC& aUrl );

       /**

        * Destructor.

        */      

        virtual ~CWtaiHandler();

	private: // Constructors

        /**

        * Constructor.

        */      

		CWtaiHandler();

        /**

        * Second phase constructor. Leaves on failure.

		* @param - aUrl

        */      

		void ConstructL( const TDesC& aUrl );

    private: // Functions from base classes

		/**

		* Url Handler with embedding

		* @param -

		*/

		void HandleUrlEmbeddedL();

		/**

		* Url Handler without embedding

		* @param -

		*/

		void HandleUrlStandaloneL();

		/**

		* Get library function from wtai sheme

		* @param -

		* @return TPtrC library function

		*/

		TPtrC GetWtaiLibraryFunctionL();

		/**

		* Get the specific parameter of wtai

		* @param - aPos the position of the required parameter

		* @return TPtrC

		*/

		TPtrC GetParameterL(TInt aPos);

		/**

		* Get the number of parameter of wtai sheme

		* @param -

		* @return TInt

		*/

		TInt GetParameterCountL();

        /**

		* Verify the parameters of wtai sheme

        * Leaves if it is not a valid wtai library or function

		* @param -

		* @return TInt - first occurance of colon position

		*/

        TInt VerifyWtaiSchemeL( TPtrC path );

		/**

        * Notification of the state change.

        * @param aEvent The new state.

        */

		void BrowserTelServiceEvent(TBrowserTelServiceState aEvent);

		/**

        * Notification of the error that occurred.

        * @param aError The error.

        */

		void BrowserTelServiceError(TBrowserTelServiceError aError);

		/**

        * Notification when the phonebook dialog has been exited.

        * @param.

        */

		void NotifyClient();

	private: // Data

        enum TSchemeWtaiParams       //< Positions of the possible wtai parameters

            {

            ESchemeWtaiNumber = 1,   ///< Phone number

            ESchemeWtaiName = 2,     ///< Name

            ESchemeWtaiEmail = 3     ///< Email address

            };

		CBrowserTelService* iTelService; ///< Owned.

	};

#endif /* def WTAI_HANDLER_H */