/*

* Copyright (c) 2005-2006 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:  CLandmarkInterface class

*

*/

#ifndef __LANDMARKINTERFACE_H__

#define __LANDMARKINTERFACE_H__

//INCLUDES

#include <e32def.h>

#include <e32base.h>

#include <liwvariant.h>

//FORWARD DECLARATION

class CLandmarkService;

class CLandmarkObserver;

class CLandmarkCallbackMap;

/**

* CLandmarkInterface

* This class inherits from MLiwInterface and implements the

* ExecuteCmdL( const TDesC8& aCmdName,

*              const CLiwGenericParamList& aInParamList,

*              CLiwGenericParamList& aOutParamList, TUint aCmdOptions = 0,

*              MLiwNotifyCallback* aCallback = 0) and

* Close() functions. The member functions of this class parses the input parameters,

* constructs proper structures and calls the corresponding service class functions

* based on the input arguments.

*/

// CLASS DECLARATION

NONSHARABLE_CLASS(CLandmarkInterface): public CBase, public MLiwInterface

    {

    public:

        /**

		* TParamIndex

		* Specifies whether the id passed is a landmark id or a category id.

		*/

		enum TParamIndex

			{

			EIndex0 = 0,        

			EIndex1,

			EIndex2,

			EIndex3

			};

    public://New Methods

        /**

        * NewL.

        * Two-phased constructor.

        * Create a CLandmarkInterface object.

        * @return A pointer to the created instance of CLandmarkInterface.

        */

        static CLandmarkInterface* NewL();

    public: // from MLiwInterface

        // The consumer application should call this method to execute a service

        // command directly on the interface. The service provider should

        // provide a concrete implementation for the supported service

        // command aCmdName. The consumer application should fill in the necessary

        // parameters in \em aInParamList.

        void ExecuteCmdL(  const TDesC8& aCmdName,

            const CLiwGenericParamList& aInParamList,

            CLiwGenericParamList& aOutParamList, TUint aCmdOptions = 0,

            MLiwNotifyCallback* aCallback = 0);

        // The service provider should provide a concrete implementation

        // for this method. The internal state of the service provider

        // implemeting \c MLiwInterface can be reset within this method.

        // The consumer application should call this method if there

        // are no more service commands to be executed on the interface.

        void Close();

        /**

        * Callback

        * This function returns the callback for the corresponding asynchronous request whose

        * transaction id is passed.

        *

        * @param aTransactionId Transaction id of asynchronous request whose callback is required..

        * @return The callback of the asynchronous request.

        */

        MLiwNotifyCallback* Callback( TInt32 aTransactionId );

        /**

        * SetActiveL

        * This function sets the requested database to active. The URI of the database should

        * be passed in the input parameter list.

        *

        * @param aInParamList the input parameter list.

        */

        void SetActiveL( const CLiwGenericParamList& aInParamList );   

        /**

        * SapiError

        * This function maps sapi error.

        *

        * @param aSymbianErr symbian error code.

        *

        */       

        TInt SapiError ( TInt aSymbianErr );

    private:

        /**

        * ConstructL

        * 2nd phase constructor.

        * Perform the second phase construction of CLandmarkInterface object.

        */

        void ConstructL();

        /**

        * C++ default constructor.

        * By default Symbian OS constructor is private.

        */

        CLandmarkInterface();

         /**

        * ~CLandmarkInterface

        * Destructor.

        */

        ~CLandmarkInterface();

    private:// delegator functions

        /**

        * SwitchCmdL

        * This function delegates the control to other functions based on the command.

        *

        * @param aCmdName the name of the service command which the consumer wants to invoke.

        * @param aInParamList the input parameter list.

        * @param [in,out] aOutParamList the output parameter list, can be empty list or may contain the errors.

        * @param aCmdOptions Options for the command, see TLiwServiceCmdOptions in LiwCommon.hrh.

        * @param aCallback callback to be registered by consumer application

        *

        *

        *

        * @see TLiwServiceCmdOptions

        * @see CLiwGenericParamList

        * @see MLiwNotifyCallback

        *

        */

        void SwitchCmdL( const TDesC8& aCmdName,

            const CLiwGenericParamList& aInParamList,

            CLiwGenericParamList& aOutParamList, TUint aCmdOptions,

            MLiwNotifyCallback* aCallback );

        /**

        * GetListL

        * This function delegates the control to other functions based on the

        * content type of the object requested for retrieval.

        *

        * @param aInParamList the input parameter list. This is parsed and appropriate

        * functions are called based on the type of item to be retrieved (KContentType).

        * @param [in,out] aOutParamList the output parameter list, may contain an iterable instance, an error or be empty.

        * @param aCmdOptions Options for the command, see TLiwServiceCmdOptions in LiwCommon.hrh.

        * @param aCallback callback to be registered by consumer application

        *

        *

        *

        * @see TLiwServiceCmdOptions

        * @see CLiwGenericParamList

        * @see MLiwNotifyCallback

        *

        */

        void GetListL( const CLiwGenericParamList& aInParamList,

            CLiwGenericParamList& aOutParamList, TUint aCmdOptions,

            MLiwNotifyCallback* aCallback );

        /**

        * AddL

        * This function delegates the control to other functions based on the

        * content type of the object requested for addition to database.

        *

        * @param aInParamList the input parameter list. This is parsed and appropriate

        * functions are called based on the type of item to be added (KContentType).

        * @param [in,out] aOutParamList the output parameter list, may contain the iterable instance.

        * @param aCmdOptions Options for the command, see TLiwServiceCmdOptions in LiwCommon.hrh.

        * @param aCallback callback to be registered by consumer application

        *

        *

        *

        * @see TLiwServiceCmdOptions

        * @see CLiwGenericParamList

        * @see MLiwNotifyCallback

        *

        */

        void AddL( const CLiwGenericParamList& aInParamList,

            CLiwGenericParamList& aOutParamList, TUint aCmdOptions,

            MLiwNotifyCallback* aCallback );

        /**

        * RemoveL

        * This function deletes an item from database based on the type of item.

        *

        * @param aInParamList the input parameter list. This contains the details about the item to be removed.

        * @param [in,out] aOutParamList the output parameter list, is an empty list.

        * @param aCmdOptions Options for the command, see TLiwServiceCmdOptions in LiwCommon.hrh.

        * @param aCallback callback to be registered by consumer application

        *

        *

        *

        * @see TLiwServiceCmdOptions

        * @see CLiwGenericParamList

        * @see MLiwNotifyCallback

        *

        */

        void RemoveL( const CLiwGenericParamList& aInParamList,

            CLiwGenericParamList& aOutParamList, TUint aCmdOptions,

            MLiwNotifyCallback* aCallback );

        /**

        * ImportL

        * This function imports landmarks from a file to the database.

        *

        * @param aInParamList the input parameter list.

        * @param [in,out] aOutParamList the output parameter list, may contain the iterable instance.

        * @param aCmdOptions Options for the command, see TLiwServiceCmdOptions in LiwCommon.hrh.

        * @param aCallback callback to be registered by consumer application

        *

        *

        *

        * @see TLiwServiceCmdOptions

        * @see CLiwGenericParamList

        * @see MLiwNotifyCallback

        *

        */

        void ImportL( const CLiwGenericParamList& aInParamList,

            CLiwGenericParamList& aOutParamList, TUint aCmdOptions,

            MLiwNotifyCallback* aCallback );

        /**

        * ExportL

        * This function exports a set of landmarks from database to a file.

        *

        * @param aInParamList the input parameter list.

        * @param [in,out] aOutParamList the output parameter list, is an empty list.

        * @param aCmdOptions Options for the command, see TLiwServiceCmdOptions in LiwCommon.hrh.

        * @param aCallback callback to be registered by consumer application

        *

        *

        *

        * @see TLiwServiceCmdOptions

        * @see CLiwGenericParamList

        * @see MLiwNotifyCallback

        *

        */

        void ExportL( const CLiwGenericParamList& aInParamList,

            CLiwGenericParamList& aOutParamList, TUint aCmdOptions,

            MLiwNotifyCallback* aCallback );

        /**

        * OrganiseL

        * This function links/unlinks a landmark category to a set of landmarks.

        *

        * @param aInParamList the input parameter list.

        * @param [in,out] aOutParamList the output parameter list, is an empty list.

        * @param aCmdOptions Options for the command, see TLiwServiceCmdOptions in LiwCommon.hrh.

        * @param aCallback callback to be registered by consumer application

        *

        *

        *

        * @see TLiwServiceCmdOptions

        * @see CLiwGenericParamList

        * @see MLiwNotifyCallback

        *

        */

        void OrganiseL( const CLiwGenericParamList& aInParamList,

            CLiwGenericParamList& aOutParamList, TUint aCmdOptions,

            MLiwNotifyCallback* aCallback );

        /**

        * Cancel

        * This function cancels a previously requested aynchronous request

        * based on transaction id.

        *

        * @param aInParamList the input parameter list.

        * @param [in,out] aOutParamList the output parameter list, is an empty list.

        * @param aCmdOptions Options for the command, see TLiwServiceCmdOptions in LiwCommon.hrh.

        * @param aCallback callback to be registered by consumer application

        *

        *

        *

        * @see TLiwServiceCmdOptions

        * @see CLiwGenericParamList

        * @see MLiwNotifyCallback

        *

        */

        void Cancel( const CLiwGenericParamList& aInParamList,

            CLiwGenericParamList& aOutParamList, TUint aCmdOptions,

            MLiwNotifyCallback* aCallback );

        /**

        * NewTemplateL

        * This function returns a template of the requested type.

        *

        * @param aInParamList the input parameter list.

        * @param [in,out] aOutParamList the output parameter list, contains the template and error code.

        * @param aCmdOptions Options for the command, see TLiwServiceCmdOptions in LiwCommon.hrh.

        * @param aCallback callback to be registered by consumer application

        *

        *

        *

        * @see TLiwServiceCmdOptions

        * @see CLiwGenericParamList

        * @see MLiwNotifyCallback

        *

        */

        void NewTemplateL( const CLiwGenericParamList& aInParamList,

            CLiwGenericParamList& aOutParamList, TUint aCmdOptions,

            MLiwNotifyCallback* aCallback );

    private:// helper functions

        /**

        * GetLandmarksL

        * This function retrieves a set of landmarks based on a filter.

        *

        * @param aInParamList the input parameter list.

        * @param [in,out] aOutParamList the output parameter list, may contain the iterable instance.

        * @param aCmdOptions Options for the command, see TLiwServiceCmdOptions in LiwCommon.hrh.

        * @param aCallback callback to be registered by consumer application

        *

        *

        *

        * @see TLiwServiceCmdOptions

        * @see CLiwGenericParamList

        * @see MLiwNotifyCallback

        *

        */

        void GetLandmarksL( const CLiwGenericParamList& aInParamList,

            CLiwGenericParamList& aOutParamList, TUint aCmdOptions,

            MLiwNotifyCallback* aCallback );

        /**

        * GetCategoriesL

        * This function retrieves a set of landmark categories based on a filter.

        *

        * @param aInParamList the input parameter list.

        * @param [in,out] aOutParamList the output parameter list, may contain the iterable instance.

        * @param aCmdOptions Options for the command, see TLiwServiceCmdOptions in LiwCommon.hrh.

        * @param aCallback callback to be registered by consumer application

        *

        *

        *

        * @see TLiwServiceCmdOptions

        * @see CLiwGenericParamList

        * @see MLiwNotifyCallback

        *

        */

        void GetCategoriesL( const CLiwGenericParamList& aInParamList,

            CLiwGenericParamList& aOutParamList, TUint aCmdOptions,

            MLiwNotifyCallback* aCallback );

        /**

        * GetListDatabasesL

        * This function retrieves a set of landmark databases based on a filter.

        *

        * @param aInParamList the input parameter list.

        * @param [in,out] aOutParamList may contain the iterable instance.

        *

        * @see CLiwGenericParamList

        *

        */

        void GetListDatabasesL (const CLiwGenericParamList& aInParams,

            CLiwGenericParamList& aOutParamList );

        /**

        * AddLandmarksL

        * This function adds a landmark to a landmark database.

        *

        * @param aInParamList the input parameter list.

        *

        * @see CLiwGenericParamList

        *

        */

        void AddLandmarksL( const CLiwGenericParamList& aInParamList,

        /**

        * AddCategoryL

        * This function adds a landmark category to a landmark database.

        *

        * @param aInParamList the input parameter list.

        *

        * @see CLiwGenericParamList

        *

        */

        void AddCategoryL ( const CLiwGenericParamList& aInParamList,

        /**

        * AddDatabaseL

        * This function adds a landmark database.

        *

        * @param aInParamList the input parameter list.

        *

        * @see CLiwGenericParamList

        *

        */

        void AddDatabaseL ( const CLiwGenericParamList& aInParams );      

        void ErrorMessageL( const TDesC8& aServiceCmd, const TDesC8& aKey );

        void ValidateParamL( const TDesC8& aServiceCmd, 

                const TDesC8& aKey, 

                const TLiwVariant& aVariant, 

                LIW::TVariantTypeId aType );

        TBool ValidateParamL( const TDesC8& aServiceCmd, 

                const TDesC8& aKey, 

                const CLiwMap* aMap,

                LIW::TVariantTypeId aType,

                TBool isMandatory,

                TLiwVariant& aOutVariant );

    private:// Data

        /**

        * iService

        * The handle to the CLandmarkService object.

        */

        CLandmarkService* iService;

        /**

        * iObserver

        * MLandmarkObserver instance.

        */

        CLandmarkObserver* iObserver;

        /**

        * iCallbackMap

        * Array of CLandmarkCallbackMap objects.

        */

        RPointerArray<CLandmarkCallbackMap> iCallbackMap;

        /**

         * iErrMsg

         * The pointer to the error message.

         */

        HBufC* iErrMsg;

        /**

         * iId

         * The id of the added/modified landmark/category.

         */

        HBufC* iId;

    };

#endif // __LANDMARKINTERFACE_H__