/*

* Copyright (c) 2008-2008 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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:  Header file for CIRBaseView

*

*/

#ifndef C_CIRBASEVIEW_H

#define C_CIRBASEVIEW_H

#include <aknview.h>

#include "irsystemeventobserver.h"

const TInt KIRIconSubCellIndex = 3;

const TInt KAlphanumericStart = 48; //Scan code of '0' key on keypad.

const TInt KAlphanumericEnd = 59;   //Scan code of 'w' key on keypad.

const TInt KAphaUpperCaseStart = 65;

const TInt KAphaUpperCaseEnd = 91;

const TInt KAphaLowerCaseStart = 97;

const TInt KAphaLowerCaseEnd = 122;

const TInt KAknExListFindBoxTextLength = 10;

const TInt KFont = 200;

const TSize KBitmapSize = TSize(59, 59);

class CIRIsdsWrapper;

class CIRNowPlayingWrapper;

class CIRUi;

class CIRAddManuallyStationForm;

class CIRDialogLauncher;

/**

 * Base View

 *

 * Base View, which is used to hold common functionality across different views.

 * At the moment contains only some event handling and some view activation related functionality.

 */

class CIRBaseView :public CAknView,

    public MIRSystemEventObserver

    {

public:

 	/**

     * Available observers to be used in derived classes.

     */

    enum TIRObservers

        {

        EIRNone = 0x00000000,

        EIRSystemEventObserver = 0x00000002

        };

    /**

     * Destructor.

     */

    ~CIRBaseView();

    /**

     * Set the title of the current view. This is a utility method for more easy

     * title setting. SetTitleL has two overloaded methods: one for resource

     * based strings and one for descriptor based strings.

     *

     * @param aResourceid A resource id pointing to a text

     */

    void SetTitleL( TInt aResourceId );

    /**

     * @param aTitleText Descriptor which holds the title text

     */

    void SetTitleL( const TDesC& aTitleText );

    /**

     * Takes care of pushing and poping views for view backtracking

     */

    void HandleViewStackL(TUid aCustomMessageId);

	// from base class CAknView

    void HandleCommandL( TInt aCommand );

    void HandleForegroundEventL( TBool aForeground );

	// from base class MEikMenuObserver

    /**

    * GetCurrentFocus

    * Returns Data for the current focus in the Listbox

    */

    TInt GetCurrentFocus();

    /**

    * GetCurrentTopItemInstance

    * Returns Data for the top item index in the Listbox

    */

    TInt GetCurrentTopItem();

    /**

    * SetCurrentFocus

    * Sets Data for the current focus in the Listbox

    */

    void SetCurrentFocus(TInt aCurrentFocus);

    /**

    * SetCurrentTopItemInstance

    * Sets Data for the top item index in the Listbox

    */

    void SetCurrentTopItem(TInt aTopItemIndex);

	//From the base class MIRSystemEventObserver    

    void HandleSystemEventL(TIRSystemEventType aEventType);

protected:

    /**

     * By default Symbian 2nd phase constructor is private.

     *

     * @param aResourceId A resource id for BaseContructL

     */

    void ConstructL( TInt aResourceId );

    /**

     * C++ default constructor.

     */

    CIRBaseView();

    /**

     * Enable event observing.

     *

     * @param aObservers List of observers to be enabled

     */

     void EnableObserverL( TInt aObservers );

    /**

     * Disable event observing.

     *

     * @param aObservers List of observers to be disabled

     */

    void DisableObserver( TInt aObservers );

	// from base class CAknView

    void DoActivateL( const TVwsViewId& aPrevViewId,

                      TUid aCustomMessageId,

                      const TDesC8& aCustomMessage );

    void DoDeactivate();

private:

    /**

     * Saves information about which observers are currently enabled/disabled.

     */

    TInt iObserverEnabled;

public:    //data

    CIRUi* iUi;

    /**

     * iIsdsWrapper

     * instance of the IsdsWrapper class

     * To be used by all the views

     */

	CIRIsdsWrapper *iIsdsWrapper;

    /**

     * iNowPlayingWrapper

     * instance of the CIRNowPlayingWrapper class

     * To be used by all the views

     */

	CIRNowPlayingWrapper *iNowPlayingWrapper;

	/**

	* iCurrentFocus

	* Data for the current focus in the Listbox

	*/

	TInt iCurrentFocus;

	/**

	* iTopItemIndex

	* Data for the top item index in the Listbox

	*/

	TInt iTopItemIndex;

    };

#endif /* C_CIRBASEVIEW_H */