/*

* Copyright (c) 2002-2004 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:  Client application preferencies container class

*

*/

#ifndef HTTPCLIENTAPPINSTANCE_H

#define HTTPCLIENTAPPINSTANCE_H

//  INCLUDES

#include <httpdownloadmgrcommon.h>

#include <e32base.h>

// CONSTANTS

//const ?type ?constant_var = ?constant;

// MACROS

//#define ?macro ?macro_def

// DATA TYPES

//enum ?declaration

//typedef ?declaration

//extern ?data_type;

// FUNCTION PROTOTYPES

//?type ?function_name(?arg_list);

// FORWARD DECLARATIONS

class CHttpDownload;

class CHttpClientApp;

class CHttpConnHandler;

// CLASS DECLARATION

// CLASS DECLARATION

class MDownloadStateObserver

    {

    public:

        virtual void Event( CHttpDownload* aDownload, 

                            THttpDownloadState aDlState,

                            THttpProgressState aProgState,

                            TInt32 aMoIndex ) = 0;

    };

/**

*  ?one_line_short_description.

*  ?other_description_lines

*

*  @lib ?library

*  @since Series 60 2.8

*/

NONSHARABLE_CLASS( CHttpClientAppInstance ) : public CBase

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CHttpClientAppInstance* NewL( CHttpClientApp* aClientApp,

                                             CHttpConnHandler* aConnHandler,

                                             TBool aMaster,

                                             TInt aInstanceId = 0,

                                             MDownloadStateObserver* aObserver = NULL );

        /**

        * Destructor.

        */

        virtual ~CHttpClientAppInstance();

    public: // New functions

        /**

        * This function is only for internal test usage.

        * Do NOT use it!!!

        * @since Series 60 2.8

        * @param aObserver download state observer

        */

        IMPORT_C void SetObserver( MDownloadStateObserver* aObserver );

        /**

        * Search for a download that is already registered with the given URL.

        * If found this dowload object is return. NULL anyway.

        * @since Series 60 2.8

        * @param aUrl URL to be searched for

        * @return download object registered with this URL or NULL.

        */

        IMPORT_C CHttpDownload* SearchDownloadWithUrl( const TDesC8& aUrl );

        /**

        * Creates a new download with the given URL.

        * 

        * @since Series 60 2.8

        * @param aURL URL address of this download

        * @return a new created download object

        */

        IMPORT_C CHttpDownload* CreateNewDownloadL( const TDesC8& aUrl );

        /**

        * Get pointer to a download object that is already created,

        * and identified with the id.

        * 

        * @since Series 60 3.2

        * @param aDownloadId id of the download attached to

        * @return download object identified with the id

        */

        IMPORT_C CHttpDownload* AttachDownloadL( TInt32 aDownloadId );

        /**

        * Returns array of the downloads owned by this client

        * instance.

        * Ownership is passed to the caller.

        * @since Series S60 2.8

        * @return pointer to an array of the downloads owned by this client instance

        */

        IMPORT_C CArrayPtrFlat<CHttpDownload>* DownloadsL() const;

        /**

        * Returns the UId of this application

        * @since Series 60 2.8

        * @return UId of this application

        */

        IMPORT_C TUint32 AppUid() const;

        /**

		* Gets the value for a TInt attribute.

		* @param aAttribute Identifies the attribute to be retrived.

		* @param aValue On completion, contains the requested TInt attribute.

        * @return void.

		*/

		IMPORT_C void GetIntAttributeL( THttpDownloadMgrAttrib aAttribute, 

									    TInt32& aValue );

        /**

		* Gets the value for a TBool attribute.

		* @param aAttribute Identifies the attribute to be retrived.

		* @param aValue On completion, contains the requested TBool attribute.

        * @return pointer to the string attribute.

		*/

		IMPORT_C void GetBoolAttributeL( THttpDownloadMgrAttrib aAttribute, 

                                         TBool& aValue );

		/**

		* Gets the value for a string attribute.

		* @param aAttribute Identifies the attribute to be retrived.

		* @param aDelete ETrue if returned buffer has to be deleted.

        * @return pointer to the string attribute.

		*/

		IMPORT_C HBufC* GetStringAttributeL( THttpDownloadMgrAttrib aAttribute, 

                                             TBool& aDelete );

		/**

		* Gets the value for a string attribute.

		* @param aAttribute Identifies the attribute to be retrived.

		* @param aDelete ETrue if returned buffer has to be deleted.

        * @return void.

		*/

		IMPORT_C HBufC8* GetString8AttributeL( THttpDownloadMgrAttrib aAttribute, 

                                               TBool& aDelete );

        /**

		* Sets the value for a TInt attribute.

		* @param aAttribute Identifies the attribute to be set.

		* @param aValue The value to be set.

        * @return KErrNone if successful, a system-wide error code if not.

		*/

		IMPORT_C void SetIntAttributeL( THttpDownloadMgrAttrib aAttribute, 

                                        const TInt32 aValue );

		/**

		* Sets the value for a TBool attribute.

		* This method can be used to stop a connection (KConnectionStop).

		* @param aAttribute Identifies the attribute to be set.

		* @param aValue The value to be set.

		*/

		IMPORT_C void SetBoolAttributeL( THttpDownloadMgrAttrib aAttribute, 

                                         const TBool aValue );

		/**

		* Sets the value for a string attribute.

		* @param aAttribute Identifies the attribute to be set.

		* @param aValue The string value to be set. Must be a 16-bit descriptor!.

		*/

		IMPORT_C void SetStringAttributeL( THttpDownloadMgrAttrib aAttribute, 

                                           const TDesC16& aValue );

		/**

		* Sets the value for a string attribute.

		* @param aAttribute Identifies the attribute to be set.

		* @param aValue The string value to be set. Must be a 16-bit descriptor!.

		*/

		IMPORT_C void SetStringAttributeL( THttpDownloadMgrAttrib aAttribute, 

                                           const TDesC8& aValue );

        /**

        * Disconnects the instance's connection and pauses all downloads.

        * @since Series 60 2.8

        * @return none

        */

        IMPORT_C void Disconnect();

        /**

        * Returns the client application object.

        * @since Series 60 2.8

        * @return pointer to the client application object. Ownership not passed.

        */

        IMPORT_C CHttpClientApp* ClientApp() const;

        /**

        * Returns the id of this client instance

        * @since Series 60 2.8

        * @return id of this client instance

        */

        TInt InstanceId() const;

        /**

        * Returns the connection handler of this instance.

        * @since Series 60 2.8

        * @return pointer to the connection handler of this instance. Ownership not passed.

        */

        CHttpConnHandler* ConnHandler() const;

        /**

        * Returns the state observer of this instance.

        * @since Series 60 2.8

        * @return pointer to the state observer. Ownership not passed.

        */

        MDownloadStateObserver* Observer() const;

        /**

        * Return the exit action attribute.

        * @since Series 60 2.8

        * @return exit action.

        */

        THttpDownloadMgrExitAction ExitAction() const;

        /**

        * Returns master attribute.

        * @since Series 60 2.8

        * @return master attribute.

        */

        TBool Master() const;

        /**

        * Returns cookie usage setting.

        * @return ETrue if cookie usage is enabled.

        */

        TBool Cookies() const;

        /**

        * Returns auto connectn setting.

        * @return ETrue if auto-connect enabled.

        */

        TBool AutoConnect() const;

    public: // Functions from base classes

    protected:  // New functions

    protected:  // Functions from base classes

    private:

        /**

        * C++ default constructor.

        */

        CHttpClientAppInstance( CHttpClientApp* aClientApp,

                                CHttpConnHandler* aConnHandler,

                                TBool aMaster,

                                TInt aInstanceId,

                                MDownloadStateObserver* aObserver );

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

    public:     // Data

    protected:  // Data

        // ?one_line_short_description_of_data

        //?data_declaration;

    private:    // Data

        // ?one_line_short_description_of_data

        //?data_declaration;

        CHttpClientApp* iClientApp; // not owned

        TInt    iInstanceId;    // Unique id of this instance 

                                // of the client application

        TBool   iSilentMode;    // See EDlMgrSilentMode

        TBool   iNotifications; // No user notification needed

        THttpDownloadMgrExitAction   iExitAction;   // See EDlMgrDeleteOnExit

        CHttpConnHandler* iConnHandler; // pointer to the CHttpConnHandler object

                                        // used by this instance. Not owned only

                                        // contained.

        MDownloadStateObserver* iObserver;  // now owner

        TBool   iMaster;        // Indicates that this instance inherits all

                                // downloads another instance with the same UID

                                // left in the download manager

        TBool   iCookies;       // EDlMgrEnableCookies

        TBool   iAutoConnect;   // EDlAutoConnect

        TBool   iFotaDownload;  // EDlMgrFotaDownload

        TBool iProgressiveDownload; // EDlMgrProgressiveDownload

        // Reserved pointer for future extension

        //TAny* iReserved;

    public:     // Friend classes

    protected:  // Friend classes

        friend class CHttpClientApp;

    private:    // Friend classes

    };

#endif      // HTTPCLIENTAPPINSTANCE_H

// End of File