/*

* 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:    Launch help application with appropriate help context

*

*/

/**

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

 */

#include "glxcommandhandlerhelp.h"

#include <glxcommandhandlers.hrh>

#include <glxgallery.hrh>

#include <avkon.hrh>

#include <coemain.h>

// ---------------------------------------------------------------------------

// Constructor.

// ---------------------------------------------------------------------------

//

EXPORT_C TGlxHelpContext::TGlxHelpContext()

    {

    iMajor = TUid::Uid( KGlxGalleryApplicationUid );

    iBrowseContext = KNullDesC;

    iViewContext = KNullDesC;

    }

// ---------------------------------------------------------------------------

// Two-phased constructor.

// ---------------------------------------------------------------------------

//

EXPORT_C CGlxCommandHandlerHelp* 

                CGlxCommandHandlerHelp::NewL(TGlxHelpContext aHelpContext)

    {

    CGlxCommandHandlerHelp* self = new ( ELeave )

        CGlxCommandHandlerHelp(aHelpContext);

    return self;

    }

// ---------------------------------------------------------------------------

// C++ default constructor can NOT contain any code, that

// might leave.

// ---------------------------------------------------------------------------

//

CGlxCommandHandlerHelp::CGlxCommandHandlerHelp(TGlxHelpContext aHelpContext)

:CGlxCommandHandler(), iHelpContext(aHelpContext)

    {

    // Do nothing

    }

// ---------------------------------------------------------------------------

// Destructor

// ---------------------------------------------------------------------------

//

EXPORT_C CGlxCommandHandlerHelp::~CGlxCommandHandlerHelp()

    {       

    // No implementation 

    }

// ---------------------------------------------------------------------------

// DoActivateL

// ---------------------------------------------------------------------------

//    

void CGlxCommandHandlerHelp::DoActivateL(TInt /*aViewId*/)

    {

    // No implementation

    }

// ---------------------------------------------------------------------------

// Deactivate

// ---------------------------------------------------------------------------

//  

void CGlxCommandHandlerHelp::Deactivate()

    {

    // No implementation

    }

// -----------------------------------------------------------------------------

// DoExecute - the relevant action for the command id

// -----------------------------------------------------------------------------

//

TBool CGlxCommandHandlerHelp::ExecuteL(TInt aCommandId)

    {

    TBool handledCommand = ETrue;

    switch (aCommandId)

        {

        case EAknCmdHelp:

            {

            LaunchHelpL();

            break;

            }

        case EGlxCmdStateView:

            iInFullScreen = ETrue;

            handledCommand = EFalse;

            break;

        case EGlxCmdStateBrowse:

            iInFullScreen = EFalse;

            handledCommand = EFalse;

            break;     

        default:

            {

            handledCommand = EFalse;

            break;

            }

        }

    return handledCommand;

    }

// ---------------------------------------------------------------------------

// DynInitMenuPaneL

// ---------------------------------------------------------------------------

//

void CGlxCommandHandlerHelp::DynInitMenuPaneL(TInt /*aResourceId*/, 

                                                CEikMenuPane* /*aMenuPane*/,

                                                TBool /*aIsBrowseMode*/)

    {

    // No implementation

    }    

// ---------------------------------------------------------------------------

// OfferKeyEventL

// ---------------------------------------------------------------------------

//

TKeyResponse CGlxCommandHandlerHelp::

        OfferKeyEventL(const TKeyEvent& /*aKeyEvent*/, TEventCode /*aType*/)

    {

    return EKeyWasNotConsumed;

    }    

// ---------------------------------------------------------------------------

// PreDynInitMenuPaneL

// ---------------------------------------------------------------------------

//

void CGlxCommandHandlerHelp::PreDynInitMenuPaneL( TInt /*aResourceId*/ )

    {

    // No implementation

    }

// -----------------------------------------------------------------------------

// LaunchHelpL

// -----------------------------------------------------------------------------

//    

void CGlxCommandHandlerHelp::LaunchHelpL()

    {

    TCoeHelpContext helpContext;

    helpContext.iMajor = iHelpContext.iMajor;

    if(iInFullScreen)

        {

        helpContext.iContext = iHelpContext.iViewContext;

        }

    else

        {

        helpContext.iContext = iHelpContext.iBrowseContext;

        }

    // Create the context array and append the single context item

    CArrayFix<TCoeHelpContext>* contextArray = 

        new ( ELeave ) CArrayFixFlat<TCoeHelpContext> ( 1 );

    CleanupStack::PushL( contextArray );

    contextArray->AppendL( helpContext );

    CleanupStack::Pop( contextArray );

    //Launch help - takes ownership of context array

    RWsSession& wsSession = CCoeEnv::Static()->WsSession();

    HlpLauncher::LaunchHelpApplicationL( wsSession,

                                         contextArray );

    }