/*

* Copyright (c) 2005-2006 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:  Implementation wrapper for CEikEdwin

*

*/

// System includes

#include <e32base.h>

#include <e32const.h>

#include <e32property.h>

#include <eikedwin.h>

#include <AknUtils.h>

#include <AknsUtils.h>

#include <aknview.h>

#include <aknedsts.h>

#include <txtglobl.h>

#include <txtfmlyr.h>

#include <txtfrmat.h>

#include <txtrich.h>

#include <gdi.h>

#include <activeidle2domainpskeys.h>

// User includes

#include "xnappuiadapter.h"

#include "xndompropertyvalue.h"

#include "xndomlist.h"

#include "xndomproperty.h"

#include "xnproperty.h"

#include "xnnodepluginif.h"

#include "xncontroladapter.h"

#include "xntexteditoradapter.h"

#include "xntexteditorpublisher.h"

#include "xnnodepluginif.h"

#include "xneditmode.h"

#include "c_xnutils.h"

#include "xntexteditor.h" 

const TInt KMaxLength = 100;

_LIT8( KCpsPublishing, "cpspublishing" );

_LIT8( KMaxLineAmount, "max-line-amount" );

_LIT8( KMaxCharAmount, "max-char-amount" );

_LIT8( KEnablePartialInput, "splitinputenabled" );

_LIT( KEnterChar, "\x2029" );

// Local macros

#define IS_ARROW_KEY( k ) \

    ( k == EStdKeyLeftArrow || k == EStdKeyRightArrow || \

      k == EStdKeyUpArrow || k == EStdKeyDownArrow ) 

// ============================ LOCAL FUNCTIONS ================================   

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

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

// CXnTextEditorAdapter::NewL

// Symbian static 1st phase constructor

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

//

CXnTextEditorAdapter* CXnTextEditorAdapter::NewL( CXnControlAdapter* aParent, 

    CXnNodePluginIf& aNode )

    {

	CXnTextEditorAdapter* self = 

        new( ELeave ) CXnTextEditorAdapter( aParent, aNode );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;	

    }

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

// CXnTextEditorAdapter::CXnTextEditorAdapter

// C++ default constructor

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

//

CXnTextEditorAdapter::CXnTextEditorAdapter( CXnControlAdapter* aParent, 

    CXnNodePluginIf& aNode )

    : iParent( aParent ), iNode( aNode )

    {

    }

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

// CXnTextEditorAdapter::~CXnTextEditorAdapter

// C++ destructor

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

//

CXnTextEditorAdapter::~CXnTextEditorAdapter()

    {    

    if ( iAvkonAppUi )

        {

        iAvkonAppUi->RemoveFromStack( iEditor );

        }

    if( iFont && iReleaseFont )

        {

        CWsScreenDevice* dev( iCoeEnv->ScreenDevice() );

        dev->ReleaseFont( iFont );

        }

    delete iEditorPublisher;

    delete iEditor;   

    }

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

// CXnTextEditorAdapter::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CXnTextEditorAdapter::ConstructL()

    {

    CXnControlAdapter::ConstructL( iNode );    

    iUiEngine = iNode.UiEngineL();

    // Max line amount

    iMaxLines = 0;

    CXnProperty* maxlinesProp( iNode.GetPropertyL( KMaxLineAmount ) );

    if ( maxlinesProp )

        {

        iMaxLines = maxlinesProp->FloatValueL();

        }

    // Max char amount

    TInt maxChars( KMaxLength );

    CXnProperty* maxcharsProp( iNode.GetPropertyL( KMaxCharAmount ) );    

    if ( maxcharsProp )

        {

        maxChars = maxcharsProp->FloatValueL();

        }

    iEditor = new ( ELeave ) CEikEdwin;

    iEditor->SetContainerWindowL( *iParent );

    iEditor->ConstructL( 0, maxChars, maxChars, iMaxLines );

    // Set allowed input modes

    iEditor->SetAknEditorAllowedInputModes( EAknEditorAllInputModes );

    // Set the default input mode

    iEditor->SetAknEditorInputMode( 

        EAknEditorTextInputMode | EAknEditorNumericInputMode );

    // Set allowed case modes

    iEditor->SetAknEditorPermittedCaseModes( EAknEditorAllCaseModes );

    // Set the default case mode

    iEditor->SetAknEditorCase( EAknEditorTextCase );

    iEditor->AddFlagToUserFlags( 

        CEikEdwin::ENoAutoSelection | CEikEdwin::EAllowUndo );

    // Set numeric keymap

    iEditor->SetAknEditorNumericKeymap( EAknEditorPlainNumberModeKeymap );

    iEditor->SetSuppressBackgroundDrawing( ETrue );

    // Enable partial Screen

    CXnProperty* enablepartialinput( iNode.GetPropertyL( KEnablePartialInput ) );

    if ( enablepartialinput && 

         enablepartialinput->StringValue() == XnPropertyNames::KTrue )

        {

        iEditor->SetAknEditorFlags( EAknEditorFlagEnablePartialScreen );

        }

    iEditor->SetObserver( this );

    // Default not focused                                  

    iEditor->SetFocus( EFalse );                              

    SetPropertiesL();

	}

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

// CXnTextEditorAdapter::CountComponentControls

// (other items were commented in a header).

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

//  

TInt CXnTextEditorAdapter::CountComponentControls() const

    {

    if( iEditor )

        {

        return 1;

        }

    return 0;        

    }

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

// CXnTextEditorAdapter::ComponentControl

// (other items were commented in a header).

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

// 

CCoeControl* CXnTextEditorAdapter::ComponentControl( TInt aIndex ) const

    {

    if( aIndex == 0 )

        {

        return iEditor;

        }

    return NULL;        

    }

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

// CXnTextEditorAdapter::SizeChanged

// (other items were commented in a header).

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

// 

void CXnTextEditorAdapter::SizeChanged()

    {        

    iEditor->SetRect( iNode.Rect() );  

    }

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

// CXnTextEditorAdapter::OfferKeyEventL

// (other items were commented in a header).

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

// 

TKeyResponse CXnTextEditorAdapter::OfferKeyEventL( const TKeyEvent& aKeyEvent,

    TEventCode aType )

    {

    TKeyResponse ret( EKeyWasNotConsumed );

    if ( !IsFocused() )

        {

        return ret;

        }

    ret = iEditor->OfferKeyEventL( aKeyEvent, aType );                    

    if ( IS_ARROW_KEY( aKeyEvent.iScanCode ) )    

        {                        

        if ( ret == EKeyWasNotConsumed && aType == EEventKey )

            {            

            iRefusesFocusLoss = EFalse;

            ret = CXnControlAdapter::OfferKeyEventL( aKeyEvent, aType );

            }                    

        }

    if ( aKeyEvent.iCode == EKeyEnter )

        {

        if ( iEditorPublisher && iMaxLines == 1 )

            {

            TInt length( iEditor->TextLength() );

            HBufC* content = HBufC::NewLC( length + 1 );

            TPtr ptr( content->Des() );

            iEditor->GetText( ptr );

            ptr.Append( KEnterChar );

            iEditorPublisher->PublishTextL( *content );

            CleanupStack::PopAndDestroy( content );

            }

        }

    return ret;        

    }

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

// CXnTextEditorAdapter::RefusesFocusLoss

// (other items were commented in a header).

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

// 

TBool CXnTextEditorAdapter::RefusesFocusLoss() const

    {    

    return iRefusesFocusLoss;

    }

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

// CXnTextEditorAdapter::FocusChanged

// (other items were commented in a header).

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

// 

void CXnTextEditorAdapter::FocusChanged( TDrawNow aDrawNow )

    {

    CXnAppUiAdapter* appui( 

        static_cast< CXnAppUiAdapter* >( iAvkonAppUi ) );

    TBool isFocused( IsFocused() ? ETrue : EFalse );

    TInt value;

    if ( isFocused )

        {      

        value = EPSAiDontForwardNumericKeysToPhone;

            {

            TRAP_IGNORE( appui->AddToStackL( appui->View(), iEditor ) );            

            // AddToStackL calls iEditor->SetFocus( ETrue ); 

            }

        }

    else

        {

        value = EPSAiForwardNumericKeysToPhone;

            {    

            appui->RemoveFromStack( iEditor );            

            iEditor->SetFocus( EFalse, aDrawNow );

            }

            {

            appui->RemoveFromStack( iEditor );            

            iEditor->SetFocus( EFalse, aDrawNow );

        }

        {

        value = EPSAiDontForwardNumericKeysToPhone;

        }

    iRefusesFocusLoss = isFocused;

    RProperty::Set( KPSUidAiInformation,            

                    KActiveIdleForwardNumericKeysToPhone,

                    value );    

    }

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

// CXnTextEditorAdapter::Draw

// Draws the editor component

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

//

void CXnTextEditorAdapter::Draw( const TRect& aRect ) const

    {                           

    CXnControlAdapter::Draw( aRect );

    }

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

// CXnTextEditorAdapter::HandleControlEventL

// 

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

//    

void CXnTextEditorAdapter::HandleControlEventL( CCoeControl* aControl, 

    TCoeEvent aEventType )

    {

    if ( aControl == iEditor )

        {

        // If background drawing is suppressed, then we need to call draw here

        if ( aEventType == EEventStateChanged )

            {

            DrawNow();                                    

            }        

        }

    }

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

// CXnTextEditorAdapter::SetTextL

// Sets the new content to the underlying CEikEdwin

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

//

void CXnTextEditorAdapter::SetTextL( const TDesC& aText )

    {

    iEditor->SetTextL( &aText );

    iNode.SetDirtyL();

    }

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

// CXnTextEditorAdapter::Text

// Returns the text contained in the underlying CEikEdwin

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

//

HBufC* CXnTextEditorAdapter::Text() const

    {

    HBufC* text( NULL );

    TRAP_IGNORE( text = iEditor->GetTextInHBufL() );

    // Ownership is transfered to the calller

    return text;

    }

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

// CXnTextEditorAdapter::HandleEditorEvent

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

//

void CXnTextEditorAdapter::HandleEditorEvent( TInt aReason )

    {

    CXnAppUiAdapter* appui( 

        static_cast< CXnAppUiAdapter* >( iAvkonAppUi ) );

    switch( aReason )

            {           

            case CXnTextEditor::KDeactivateTextEditor:

                {

                     {

                     iUiEngine->EnablePartialTouchInput(iNode, EFalse);

                     appui->RemoveFromStack( iEditor );

                     iEditor->SetFocus( EFalse );

                     }              

                break;

                }

            case CXnTextEditor::KRemoveSplitInputFromStack:

                {

                break;

                }

            case CXnTextEditor::KKeepSplitInputInStack:

                {

                break;

                }

            default:                    

                break;    

            }

    }

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

// CXnTextEditorAdapter::SetPropertiesL

// Sets text properties

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

//

void CXnTextEditorAdapter::SetPropertiesL()

    {    

    // Whether to publish text to CPS

    CXnProperty* cpspublishingProp( iNode.GetPropertyL( KCpsPublishing ) );

    CXnProperty* idProp( iNode.IdL() );

    if ( cpspublishingProp && idProp && 

        cpspublishingProp->StringValue() == XnPropertyNames::KTrue )

        {

        iEditorPublisher = CXnTextEditorPublisher::NewL( 

                *this, idProp->StringValue() );

        }    

    // Store current state

    if ( iFont && iReleaseFont )

        {

        CWsScreenDevice* dev( iCoeEnv->ScreenDevice() );

        dev->ReleaseFont( iFont ); 

        iFont = NULL;

        }

    // Get new font

    CXnUtils::CreateFontL( iNode, iFont, iReleaseFont );

    // And set font

    TCharFormat cf;

    TCharFormatMask cfm;

    cfm.SetAttrib( EAttColor );

    cfm.SetAttrib( EAttFontTypeface );

    cfm.SetAttrib( EAttFontHeight );

    cfm.SetAttrib( EAttFontPosture );

    cfm.SetAttrib( EAttFontStrokeWeight );

    cfm.SetAttrib( EAttLineSpacing );

    cfm.SetAttrib( EAttLineSpacingControl );

    cf.iFontSpec = iFont->FontSpecInTwips();

    // Set linespacing    

    CXnProperty* lineSpaceProp( 

        iNode.GetPropertyL( XnPropertyNames::appearance::common::KFontLineSpace ) );

    if ( lineSpaceProp )

        {

        TInt lineSpace = 

            iUiEngine->VerticalPixelValueL( lineSpaceProp, iNode.Rect().Height() );

        CParaFormatLayer*pFormatLayer = CEikonEnv::NewDefaultParaFormatLayerL();

        CleanupStack::PushL(pFormatLayer);

        CParaFormat* paraformat = CParaFormat::NewLC(); 

        TParaFormatMask paraFormatMask; 

        paraFormatMask.SetAttrib(EAttLineSpacing);

        paraFormatMask.SetAttrib(EAttLineSpacingControl);

        paraformat->iLineSpacingControl = CParaFormat::ELineSpacingExactlyInTwips;

        CGraphicsDevice* screenDevice = iEikonEnv->ScreenDevice();

        TInt lineHeight = screenDevice->VerticalPixelsToTwips( iFont->HeightInPixels() + lineSpace );

        paraformat->iLineSpacingInTwips = lineHeight;

        pFormatLayer->SetL(paraformat, paraFormatMask);

        iEditor->SetParaFormatLayer(pFormatLayer); // Edwin takes the ownership

        CleanupStack::PopAndDestroy(paraformat);

        CleanupStack::Pop(pFormatLayer); 

        }

    // Get text color and set it

    TRgb textColor;