/*

* Copyright (c) 2002 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:  Navi pane handling utilities

*

*/

// Mail includes

#include "cmsgmailnavipaneutils.h"

#include <avkon.hrh>

#include <aknenv.h>

#include <AknsUtils.h>

#include <AknIndicatorContainer.h>

#include <MsgAttachmentUtils.h>

#include <AknIconUtils.h>

#include <aknEditStateIndicator.h>

#include <aknnavi.h>    // for CAknNavigationControlContainer

#include <aknnavide.h>  // for CAknNavigationDecorator

#include <avkon.mbg>

// LOCAL CONSTANTS

const TInt KMaxNaviMailSize(9999*1024); // largest size shown in navi pane

const TInt KMaxNaviMailDigits(20); // some language variants require this

								   // to be longer than 10, since they

								   // write kB with more characters

								   // this will cause overlapping in 

								   // navi pane with priority 

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

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

// CMsgMailNaviPaneUtils::NewL()

// Symbian two-phased constructor

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

//

CMsgMailNaviPaneUtils* CMsgMailNaviPaneUtils::NewL()

    {

    CMsgMailNaviPaneUtils* self = new( ELeave ) CMsgMailNaviPaneUtils();

    CleanupStack::PushL( self );

	self->ConstructL();

	CleanupStack::Pop(self); // self

    return self;

    }

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

// CMsgMailNaviPaneUtils::CMsgMailNaviPaneUtils()

// A default constructor

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

//

CMsgMailNaviPaneUtils::CMsgMailNaviPaneUtils()

    {

    }

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

// CMsgMailNaviPaneUtils::ConstructL()

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

//

void CMsgMailNaviPaneUtils::ConstructL()

    {

    CEikStatusPane* statusPane =

        CEikonEnv::Static()->AppUiFactory()->StatusPane();					// CSI: 27 # Must be used because of iEikEnv 

																			// is not accessible.

    ASSERT( statusPane );

    // We don't own iNaviPane. 

    iNaviPane = static_cast<CAknNavigationControlContainer*>(

        statusPane->ControlL( TUid::Uid( EEikStatusPaneUidNavi ) ) );

    ASSERT( iNaviPane );

    // iNaviDecorator must be deleted in destructor. 

    iNaviDecorator = iNaviPane->CreateEditorIndicatorContainerL();

    ASSERT( iNaviDecorator );

    iNaviIndi = static_cast<CAknIndicatorContainer*>(

        iNaviDecorator->DecoratedControl() );

    ASSERT( iNaviIndi );

    // Address fields contain by default t9 and abc icons, and to avoid

    // other indicators changing position when our own navi pane is enabled or

    // disabled we will create invisible indicators.

    CreateInvisibleIndicatorL( EAknNaviPaneEditorIndicatorLowerCase );

    CreateInvisibleIndicatorL( EAknNaviPaneEditorIndicatorT9 );

    }

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

// CMsgMailNaviPaneUtils::~CMsgMailNaviPaneUtils()

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

//

CMsgMailNaviPaneUtils::~CMsgMailNaviPaneUtils()

    {

    delete iNaviDecorator;    

    }

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

// CMsgMailNaviPaneUtils::SetPriorityIndicator()

// if priority is EMsvMediumPriority then no indicator is shown

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

void CMsgMailNaviPaneUtils::SetPriorityIndicator( TMsvPriority aPriority )

	{

    SetIndicatorState( EAknNaviPaneEditorIndicatorMcePriorityHigh,

        ( aPriority == EMsvHighPriority ) ? ETrue : EFalse );

    SetIndicatorState( EAknNaviPaneEditorIndicatorMcePriorityLow,

        ( aPriority == EMsvLowPriority ) ? ETrue : EFalse );

	}

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

// void CMsgMailNaviPaneUtils::SetMessageSizeIndicatorL()

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

//

void CMsgMailNaviPaneUtils::SetMessageSizeIndicatorL( TInt aSize )

    {

    TBuf<KMaxNaviMailDigits> sizeString;

    if ( aSize > KMaxNaviMailSize )

        {

        aSize = KMaxNaviMailSize;

        }

    MsgAttachmentUtils::FileSizeToStringL( sizeString, aSize, ETrue ); 

    SetIndicatorState( EAknNaviPaneEditorIndicatorMessageLength, ETrue );

    SetIndicatorValueL( EAknNaviPaneEditorIndicatorMessageLength, sizeString );

    }

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

// void CMsgMailNaviPaneUtils::SetAttachmentIndicator()

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

//

void CMsgMailNaviPaneUtils::SetAttachmentIndicator( TBool aHasAttachments )

    {

    SetIndicatorState( EAknNaviPaneEditorIndicatorAttachment, aHasAttachments );

    }

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

// CMsgMailNaviPaneUtils::EnableOwnNaviPaneL

// Enable or disable our own navi pane. 

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

//

void CMsgMailNaviPaneUtils::EnableOwnNaviPaneL( TBool aDoEnable )

    {

    if( aDoEnable )

        {

        // If iNaviDecorator already exists in window stack, 

        // it is put foremost. 

        iNaviPane->PushL( *iNaviDecorator );

        iNaviDecorator->MakeVisible( ETrue );

        }

    else

        {

        iNaviDecorator->MakeVisible( EFalse );

        }                

    }

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

// CMsgMailNaviPaneUtils::SetIndicatorState

// Sets indicator state on/off in both default and our own navi pane

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

//

void CMsgMailNaviPaneUtils::SetIndicatorState(

    TInt aIndicatorId,

    TBool aDoEnable )

    {    

    TInt state( aDoEnable ? EAknIndicatorStateOn : EAknIndicatorStateOff );

    TUid indicator( TUid::Uid( aIndicatorId ) );    

    // default navi pane

    MAknEditingStateIndicator* ind = AVKONENV->EditingStateIndicator();

    if ( ind )

        {        

        CAknIndicatorContainer* defaultNaviIndi = ind->IndicatorContainer();    

        ASSERT( defaultNaviIndi );

        defaultNaviIndi->SetIndicatorState( indicator, state );

        }

    // our own navi pane

    iNaviIndi->SetIndicatorState( indicator, state );    

    }

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

// CMsgMailNaviPaneUtils::SetIndicatorValueL

// Sets indicator value in both default and our own navi pane

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

//

void CMsgMailNaviPaneUtils::SetIndicatorValueL(

    TInt aIndicatorId,

    const TDesC& aString )

    {    

    TUid indicator( TUid::Uid( aIndicatorId ) );

    // default navi pane

    MAknEditingStateIndicator* ind = AVKONENV->EditingStateIndicator();

    if ( ind )

        {        

        CAknIndicatorContainer* defaultNaviIndi = ind->IndicatorContainer();    

        ASSERT( defaultNaviIndi );

        defaultNaviIndi->SetIndicatorValueL( indicator, aString );

        }

    // our own navi pane

    iNaviIndi->SetIndicatorValueL( indicator, aString );

    }

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

// CMsgMailNaviPaneUtils::CreateInvisibleIndicatorL

// We add invisible "abc" and t9 icons to our navi pane so that email priority

// icon won't change it's place horizontally when focus is moved to/from 

// attachment field. This is quite ugly, but avkon doesn't provide support for

// keeping indicator in fixed location.

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

//

void CMsgMailNaviPaneUtils::CreateInvisibleIndicatorL( TInt aIndicatorId )

    {

    // 1. Turn indicator on   

    SetIndicatorState( aIndicatorId, ETrue );

    // 2. Make icon invisible

    CFbsBitmap* bitmap( NULL );

    // Get bitmap for "abc" icon

    CreateIconLC( aIndicatorId, bitmap );

    // We cannot use CFbsBitmap::SizeInPixels() since it is zero due

    // to icon scalability. To get a size for our empty mask we query

    // content dimensions. All scaling and sizing of actual indicators

    // will be taken care by CAknIndicatorContainer

    TSize size;        

    User::LeaveIfError( AknIconUtils::GetContentDimensions( bitmap,

                                                            size ) );        

    CFbsBitmap* emptyMask = new (ELeave) CFbsBitmap();

    CleanupStack::PushL( emptyMask );

    User::LeaveIfError( emptyMask->Create( size, EGray2 ) );

    // Ownership of bitmap and newMask is transferred to iNaviIndi. 

    iNaviIndi->ReplaceIndicatorIconL( TUid::Uid( aIndicatorId ),

                                      EAknIndicatorStateOn, 

                                      CAknIndicatorContainer::ELayoutModeWide,

                                      bitmap,

                                      emptyMask );

    CleanupStack::Pop( 2, bitmap );						// CSI: 47,12 # emptyMask, bitmap

    }

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

// CMsgMailNaviPaneUtils::CreateIconLC

//

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

//

void CMsgMailNaviPaneUtils::CreateIconLC(

    TInt aIndicatorId,

    CFbsBitmap*& aBitmap ) const

    {

    TAknsItemID skinId;

    TInt bitmapId;

    TInt maskId; // dummy    

    GetIconIds( aIndicatorId, skinId, bitmapId, maskId );

    MAknsSkinInstance *skin = AknsUtils::SkinInstance();    

    AknsUtils::CreateIconLC( skin,

                             skinId,

                             aBitmap,

                             AknIconUtils::AvkonIconFileName(),

                             bitmapId );    

    }

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

// CMsgMailNaviPaneUtils::GetIconIds

//

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

//

void CMsgMailNaviPaneUtils::GetIconIds(

    TInt aIndicatorId,

    TAknsItemID& aSkinId,

    TInt& aFileBitmapId,

    TInt& aFileMaskId ) const

    {

    switch ( aIndicatorId )

        {

        case EAknNaviPaneEditorIndicatorLowerCase:

            {

            aSkinId = KAknsIIDQgnStatCaseSmall;

            aFileBitmapId = EMbmAvkonQgn_stat_case_small;

            aFileMaskId = EMbmAvkonQgn_stat_case_small_mask;

            break;

            }

        case EAknNaviPaneEditorIndicatorT9:

            {

            aSkinId = KAknsIIDQgnStatT9;

            aFileBitmapId = EMbmAvkonQgn_stat_t9;

            aFileMaskId = EMbmAvkonQgn_stat_t9_mask;

            break;

            }            

        default:

            {

            // do nothing

            }

        }

    }

// End of File