/*

* Copyright (c) 2002-2009 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:  Application UI class

*

*/

// INCLUDE FILES

#include "UssdAppUi.h"

#include "UssdContainer.h"

#include "UssdComms.h"

#include <ussd.rsg>

#include <avkon.rsg>

#include "ussd.hrh"

#include <eikmenub.h>

#include <eikedwin.h>

#include <avkon.hrh>

#include <bldvariant.hrh>

#include <featmgr.h>

#include <AknDef.h>

#include <hlplch.h>   // For HlpLauncher

// ============================ MEMBER FUNCTIONS ===============================

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

// CUssdAppUi::ConstructL

// Creates all members

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

void CUssdAppUi::ConstructL()

    {

    // Sets up TLS, must be done before FeatureManager is used in USSD.

    FeatureManager::InitializeLibL();

    BaseConstructL(

        EAknEnableSkin | EAknEnableMSK

        );

    // Softkeys at start:

    // With HELP: Options-Exit (defined in the resource file, default)

    // Without HELP: <empty>-Exit

    if ( !FeatureManager::FeatureSupported( KFeatureIdHelp ) )

        {

        // Feature not supported, set correct softkeys.

        Cba()->SetCommandSetL( R_AVKON_SOFTKEYS_EXIT );

        iCbaResource = R_AVKON_SOFTKEYS_EXIT;

        Cba()->DrawNow();

        }

    iComms = CUssdComms::NewL();

    iAppContainer = new( ELeave ) CUssdContainer( *this );

    iAppContainer->SetMopParent( this );

    iAppContainer->ConstructL( ClientRect() );

    AddToStackL( iAppContainer );

    iIsAddedToStack = ETrue;

    }

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

// CUssdAppUi::~CUssdAppUi

// Destructor

// Frees reserved resources

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

CUssdAppUi::~CUssdAppUi()

    {

    if ( iIsAddedToStack )

        {

        RemoveFromStack( iAppContainer );

        }

    delete iAppContainer;

    iAppContainer = NULL;

    delete iComms;

    iComms = NULL;

    // Frees the TLS! Must be done after FeatureManager is used.

    FeatureManager::UnInitializeLib();

    }

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

// CUssdAppUi::HandleCommandL

// Handle commands from the user.

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

void CUssdAppUi::HandleCommandL( TInt aCommand )

    {

    switch ( aCommand )

        {

        case EAknCmdExit:

        case EEikCmdExit:

        case EAknSoftkeyExit:

        case EAknSoftkeyBack:

            {

            iComms->InformExitReason( EPhCltUserExit );

            Exit();

            break;

            }

        case EUssdMenuItemSend:

        case EUssdSoftkeySend:

            {

            // Send string and exit the application

            HBufC* buffer = iAppContainer->Editor().GetTextInHBufL();

            __ASSERT_DEBUG(

                buffer->Length() <= KUssdEditorMaxLenght ,

                User::Invariant() );

            if  ( buffer->Length() &&

                  buffer->Length() <= KUssdEditorMaxLenght &&

                  KErrNone == iComms->SendString( buffer->Des() ) )

                {

                iComms->InformExitReason( EPhCltSendCompleted );

                Exit();                

                }         

            delete buffer;

            break;

            }

        case EAknCmdHelp:

            {

            if ( FeatureManager::FeatureSupported( KFeatureIdHelp ) )

                {

                 // Feature supported, launch the help application.

                HlpLauncher::LaunchHelpApplicationL(

                    iEikonEnv->WsSession(), AppHelpContextL() );

                }

            break;

            }

        default:

            break;

        }

    }

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

// CUssdAppUi::HandleResourceChangeL

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

void CUssdAppUi::HandleResourceChangeL( TInt aType )

    {

    CAknAppUi::HandleResourceChangeL( aType );

    if( aType == KEikDynamicLayoutVariantSwitch )

        {

        iAppContainer->SetRect( ClientRect() );

        }

    }

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

// CUssdAppUi::HandleForegroundEventL

// Handle foreground event.

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

void CUssdAppUi::HandleForegroundEventL( TBool aForeground )

    {

    if ( iComms )

        {

        if ( aForeground )

            {

            // If app comes to foreground, we must know is the

            // editor needs clearing.

            if ( iComms->InformAppForeground() ) // ret ETrue if needs clearing

                {

                if ( iAppContainer )

                    {

                    iAppContainer->Editor().SetCursorPosL( 0, EFalse );

                    iAppContainer->Editor().Text()->Reset();

                    iAppContainer->Editor().HandleTextChangedL();

                    if ( !FeatureManager::FeatureSupported( KFeatureIdHelp ) )

                        {

                        SetSoftkeySendVisibleL( EFalse );

                        }

                    }

                }

            }

        else

            {

            iComms->InformAppBackground();

            }

        }

    // Refresh message character counter

    if( aForeground && iAppContainer )

        {

        iAppContainer->UpdateNavipaneMsgLengthL();

        }

    CAknAppUi::HandleForegroundEventL( aForeground );

    }

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

// CUssdAppUi::DynInitMenuPaneL

// Set's Send option visible.

//

// If HELP is defined, the Options menu item 'Send' is removed if

// the editor is empty. If it is not defined, the left softkey is 'Send' or

// <empty>.

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

void CUssdAppUi::DynInitMenuPaneL(

    TInt aResourceId,

    CEikMenuPane* aMenuPane )

    {

    if ( FeatureManager::FeatureSupported( KFeatureIdHelp ) )

        {

        if ( aResourceId == R_USSD_MENU )

            {

            if ( aMenuPane )

                {

                aMenuPane->SetItemDimmed(

                    EUssdMenuItemSend,

                    iAppContainer->Editor().TextLength() == 0 );

                }

            // If aMenuPane == NULL, do nothing.

            }

        // If aResourceId != R_USSD_MENU, do nothing

        }

    // If help not defined, do nothing

    }

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

// CUssdAppUi::SetSofkeySendVisibleL

// Sets Send softkey (in)visible.

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

void CUssdAppUi::SetSoftkeySendVisibleL(

    TBool aVisible )

    {

    if ( !FeatureManager::FeatureSupported( KFeatureIdHelp ) )

        {

        // Help not defined

        TInt newResource;

        if ( aVisible )

            {

            if ( iCbaResource == R_USSD_SOFTKEYS_SEND_EXIT )

                {

                return; // Send is already visible

                }

            newResource = R_USSD_SOFTKEYS_SEND_EXIT; // change it

            }

        else

            {

            if ( iCbaResource == R_AVKON_SOFTKEYS_EXIT )

                {

                return; // Send is already invisible

                }

            newResource = R_AVKON_SOFTKEYS_EXIT; // change it.

            }

        // Update Softkeys

        Cba()->SetCommandSetL( newResource );

        iCbaResource = newResource;

        Cba()->DrawNow();

        }

    // If help defined, do nothing.

    }

// End of File