/*

* Copyright (c) 2008-2009 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:    Help command handler

*

*/

/**

 * @internal reviewed 03/07/2007 by David Holland

 */

#ifndef C_GLXCOMMANDHANDLERMOREHELP_H

#define C_GLXCOMMANDHANDLERMOREHELP_H

// INCLUDES

#include <e32base.h>

#include <glxcommandhandler.h>

// temp help ids files

#include <photos.hlp.hrh>

#include <hlplch.h>

// FORWARD DECLARATIONS

// CLASS DECLARATION

// class

/**

  * TGlxHelpContext

  * Help contexts for views

  *  @author M Byrne

  */

NONSHARABLE_CLASS (TGlxHelpContext)

    {

public:

    IMPORT_C TGlxHelpContext();

public:

    TUid iMajor;

    /** Help context for browsing */

    TCoeContextName iBrowseContext;

    /** Help context for viewing if applicable */

    TCoeContextName iViewContext;

    };

//class

/**

 *  CGlxCommandHandlerHelp class 

 *  Help command handler

 *  @glxdrmcommandhandler.lib

 *  @author M Byrne

 */

NONSHARABLE_CLASS (CGlxCommandHandlerHelp)

    : public CGlxCommandHandler                                                      

    {

public : //constructor and desctructor

    /**

     * Two-phase constructor

     * @param aHelpContext help context for view

     * @param aMediaListOwner object that provides the media list

     */

    IMPORT_C static CGlxCommandHandlerHelp* NewL(TGlxHelpContext aHelpContext);

    /** Destructor */

    IMPORT_C ~CGlxCommandHandlerHelp();

    /** Activate command handler

      * @param aViewId id of view activating cmd handler

      */

    void DoActivateL(TInt aViewId);

    /**

      * Deactivate command handler

      */

    void Deactivate();

protected:

    /** see @ref MGlxCommandHandler::ExecuteL */

    TBool ExecuteL(TInt aCommandId);

    /** see @ref MGlxCommandHandler::DynInitMenuPaneL */

    /** see @ref MGlxCommandHandler::OfferKeyEventL */

    TKeyResponse OfferKeyEventL(const TKeyEvent& /*aKeyEvent*/, 

                                                TEventCode /*aType*/);

    /** see @ref MGlxCommandHandler::PreDynInitMenuPaneL */

    virtual void PreDynInitMenuPaneL( TInt aResourceId );

    /**

     * See @ref MGlxCommandHandler::GetRequiredAttributesL

     * No implementation required

     */

    void GetRequiredAttributesL(RArray< TMPXAttribute >& /*aAttributes*/,

                                TBool /*aFilterUsingSelection*/,

                                TBool /*aFilterUsingCommandId*/, 

                                TInt /*aCommandId*/) const {}

private:

    /** Constructor */

    CGlxCommandHandlerHelp(TGlxHelpContext aHelpContext);

    /**

      * Launch help application

      */

    void LaunchHelpL();

private:

    /** Help contexts for the plugin */

    TGlxHelpContext iHelpContext;

    /** flag to indicate whether full-screen view active

     based on dummy view-state commands */

    TBool iInFullScreen;

    };

#endif // C_GLXCOMMANDHANDLERMOREHELP_H