/*

* Copyright (c) 2004-2008 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:   Definition of HistoryController

*

*/

#ifndef HISTORYINTERFACE_H

#define HISTORYINTERFACE_H

//  INCLUDES

#include <e32base.h>

#include <BrCtlDefs.h>

// CONSTANTS

// MACROS

class HistoryView;

// DATA TYPES

enum THistoryStackDirection

{

    EHistoryStackDirectionPrevious,

    EHistoryStackDirectionCurrent,

    EHistoryStackDirectionNext

};

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

class TBrCtlDefs;

class TBrCtlSelectOptionData;

class HistoryEntry;

class HistoryCallback;

class CCoeControl;

class CFbsBitmap;

class WebSurface;

namespace WebCore {

    class FormData;

}

typedef CArrayFixFlat<TBrCtlSelectOptionData> SelectArray;

// CLASS DECLARATION

class HistoryCallback {

public:

    virtual CCoeControl* parent() = 0;

    virtual TPoint currentPosition() = 0;

    virtual int currentZoomLevel() = 0;

    virtual int minZoomLevel() = 0;

    virtual bool wmlMode() = 0;

    virtual void setWmlMode(bool aWml) = 0;

    virtual void doHistoryGet(TPtrC8 url, TBrCtlDefs::TBrCtlCacheMode cacheMode) = 0;

    virtual int doHistoryPost(TPtrC8 url, TBrCtlDefs::TBrCtlCacheMode cacheMode, TPtrC contentType, WebCore::FormData* formData) = 0;

    virtual void stateChanged(bool enter) = 0;

    virtual void navigationStateChanged(TBrCtlDefs::TBrCtlState state, bool value) = 0;

    virtual CFbsBitmap* scaledPage() = 0;

    virtual void makeVisible(bool visible) = 0;

    virtual WebSurface* surface() = 0;

    virtual void handleWmlBackL() = 0;

    virtual void setUse(bool use, WebCore::FormData* formData) = 0;

    virtual bool dialogSelectOption(SelectArray* historyList) = 0;

    virtual void deferTimers(bool option) = 0;

};

class HistoryControllerInterface {

    public: 

        virtual ~HistoryControllerInterface() {}

       /**

        * Insert

        * Add Url to History List

        * @since 5.x

        * @return void

        */

        virtual void insert( const TPtrC8& url, const TPtrC8& requestUrl, 

            TPtrC& formContentType, WebCore::FormData* formData ) = 0;

        /**

        * Implements virtual bool ContainsItemForURL(const TDesC& aUrl) = 0;)

        * @return bool

        * Return TRUE if URL request is in the history list

        */

        virtual bool containsItemForURL (const TPtrC& url) = 0;

        virtual int historyLength() const = 0;

        /**

        * PageInfoLC

        * Return the pageInfo requested, such as page's url or title

        * @since 3.x

        * @return HBufC* - The page information that was requested

        */

        virtual HBufC* pageInfoLC( TBrCtlDefs::TBrCtlPageInfo aBrCtlPageInfo ) = 0;

        /**

        * HandleHistoryCommandL

        * Handle the commands related to history object

        * @since 3.x

        * @return void

        */

        virtual void handleHistoryCommandL( int command ) = 0;

        /**

        * ClearHistoryList

        * Clears History List

        * @since 3.x

        * @return void

        */

        virtual void clearHistoryList() = 0;

        /**

        * CanGoBackOrForward

        * Check if back/forward is possible

        * @return void

        */

        virtual bool canGoBackOrForward( int distance ) = 0;

        /**

        * Updates HistoryEntryThumbnail

        *

        */

        virtual void updateHistoryEntryThumbnailL(const CFbsBitmap* bitmap) = 0;

        /**

        * Set the title

        *

        */

        virtual void setCurrentEntryTitle( const TPtrC& pageTitle ) = 0;

        /**

        * CurrentEntryPosition

        * Asks the history controller to update the current entry position

        */

        virtual void updateCurrentEntryPositionIfNeeded() = 0;

        /**

        * CurrentEntryPosition

        * Gets the current entry position

        */

        virtual TPoint currentEntryPosition() = 0;

        /**

        * CurrentEntryZoomLevel

        * Asks the history controller to update the current entry zoom level

        */

        virtual void updateCurrentEntryZoomLevelIfNeeded() = 0;

        /**

        * CurrentEntryZoomLevel

        * Gets the current entry zoom level

        */

        virtual int currentEntryZoomLevel() = 0;

        /**

        * CurrentEntryMinZoomLevel

        * Asks the history controller to update the current entry zoom level

        */

        virtual void updateCurrentEntryMinZoomLevelIfNeeded() = 0;

        /**

        * CurrentEntryMinZoomLevel

        * Gets the current entry zoom level

        */

        virtual int currentEntryMinZoomLevel() = 0;

        /**

         * Sets Url request 

         */

        //virtual void setRequestUrlL(const TPtrC& aUrl) = 0;

        /**

         * Sets Url Response 

         */

        //virtual void setResponseUrlL(const TPtrC& aUrl) = 0;

        /**

         * Gets the entry 

         */

        virtual HistoryEntry* entry (THistoryStackDirection direction) = 0;

        /**

         * Gets Url Request 

         */

        virtual TPtrC8 requestUrl() = 0;

        /**

        * Returns a pointer to the URL response

        * @return TPtrC to the response

        */

        virtual TPtrC8 responseUrl () = 0;

        /**

        * Returns a pointer to HistoryEntry

        * @return HistoryEntry* to the wml hystory

        */

        virtual HistoryEntry* entryByIndex (int historyIndex) = 0;

        /**

         * Gets the index 

         */

        virtual int index (THistoryStackDirection direction) = 0;

        /**

        * Delete the entry from the list

        */

        virtual void deleteEntry (int index) = 0;

        /**

        * set the current entry

        */

        virtual void setCurrentL ( THistoryStackDirection direction ) = 0;

        /**

        * Change the time stamp during a reload

        */

        virtual void updateGlobalHistoryForReload () = 0;

        virtual HistoryCallback* historyCallback() = 0;

        virtual void setBackListAllowed( bool enabled ) = 0;

        virtual HistoryView* historyView() = 0;

        virtual TBool historyViewEnabled() = 0;

        virtual void setHistoryViewEnabled( TBool aEnabled ) = 0;

        virtual void setCurrentIndex (int index) = 0;

        virtual void goBackOrForward( int distance ) = 0;

        virtual void setPossibleWmlOEB( TBool flag ) = 0;

        virtual TBool possibleWmlOEB() = 0;

		virtual void performTransition(int direction) = 0;

};

#endif      // HISTORYINTERFACE_H

// End of File