/*

* Copyright (c) 2007 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:  Handling status pane.

 *

*/

#ifndef __CCAAPPSTATUSPANEHANDLER_H__

#define __CCAAPPSTATUSPANEHANDLER_H__

//INCLUDES

#include <e32base.h>                             

//FORWARD DECLARATIONS

class CCCAAppAppUi;

class CAknTabGroup; 

class CAknNavigationDecorator;

//CONSTS

const TInt KCCAppMinPluginCountForTabs = 2;

const TInt KCCAppMinPluginCountForMaxTabs = 3;

/**

 *  CCCAppStatusPaneHandler

 *  Class for handling status pane.

 *

 *  @code

 *   

 *  @endcode

 *

 *  @lib ccaapp

 *  @since S60 v5.0

 */

class CCCAppStatusPaneHandler : 

    public CBase,

    public MAknTabObserver

	{

#ifdef __CCAPPUNITTESTMODE

    friend class UT_CCAappStatusPaneHandler;

#endif// __CCAPPUNITTESTMODE  	

public:

	/**

	 * Two-phased constructor.

	 */

    static CCCAppStatusPaneHandler* NewL( CCCAppView& aView );

    /**

     * Destructor.

     */

    ~CCCAppStatusPaneHandler();

private:

	/**

	 * Constructor.

	 */    

    CCCAppStatusPaneHandler( CCCAppView& aView );

    void ConstructL();

private:// from MAknTabObserver

    /**

     * from MAknTabObserver

     */

    void TabChangedL( TInt aIndex );    

public: // Implementation

	/**

	 * Creates tabs if there are KCCAppMinPluginCountForTabs (or more) plugins

	 *

	 * @since S60 v5.0

	 */

    void CreateTabsL();

	/**

	 * Set given tab active if iTabGroup available 

	 *

	 * @since S60 v5.0

	 * @param aTabIndex: Activates given tab. 

	 */

    void ActivateTab( TInt aTabIndex ); 

    /**

     * Set next/previous tab active if iTabGroup available 

     *

     * @since S60 v5.0

     * @param aForward next/previous

     */    

    void ActivateTabL( TBool aForward );

	/**

	 * Returns current tab index. If no iTabGroup available

	 * returns KErrNotFound.

	 *

	 * @since S60 v5.0

	 * @return current tab index.

	 */

    TInt ActiveTabIndex(); 

	/**

	 * Counts tabs. If no iTabGroup available

     * returns KErrNotFound.

	 *

	 * @since S60 v5.0

	 * @return count of tab items. 

	 */

    TInt TabCount(); 

    /**

     * Helper Function to identify whether a Tab has been

     * Created or not. If there is only 1 plugin, then the tab 

     * will not be created. If there is more than 1Plugin interested 

     * in the CCAParam then Tabs will be created and made visible

     * Use this function to check the availability of the tab

     * and pass the tab related functionalities like

     * switching between tabs

     *

     * @since S60 v5.0

     * @return ETrue - If Tab Created and Visible 

     *          EFalse - Otherwise 

     */

    TBool IsTabAvailable();

private: //Implementation 

    /**

     * Helper function for adding bitmaps.

     *

     * @since S60 v5.0

     * @param index of plugin 

     */

    void AddBitmapsL(TInt aPlugin);

    /**

     * Creates navipane

     *

     * @since S60 v5.0

     */    

    void CreateNavipaneL();

    /**

     * Adds a plugin into navipane.

     *

     * @since S60 v5.0

     * @param index of plugin 

     */

    void AddTabL( TInt aPlugin );    

private: //Data

	/**

	 * Decorated tab-group.

	 * Own.  

	 */

    CAknNavigationDecorator* iDecoratedTabGroup;

	/**

	 * Tab-group.

	 * Not own. Ownership transferred to NavigationDecoration  

	 */

     CAknTabGroup* iTabGroupRef; 

	/**

	 * Reference to view -class

	 * Not own. 

	 */     

     CCCAppView& iView;

     //Tab is available or not ETrue/EFalse

     TBool iTabAvailability;

	};

#endif // __CCAAPPSTATUSPANEHANDLER_H__