/*

* Copyright (c) 2007 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:  Key event forwarder.

*

*/

// INCLUDE FILES

#include <eikenv.h>

#include <eikappui.h>

#include <bldvariant.hrh>

#include <featmgr.h>

#include <PtiDefs.h>

#include "mphonestatemachine.h"

#include "mphonekeyeventhandler.h"

#include "cphonekeys.h"

#include "cphonekeyeventforwarder.h"

#include "cphonepubsubproxy.h"

#include "cphonetimer.h"

#include "phonelogger.h"

#include "phoneui.pan"

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

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

// CPhoneKeyEventForwarder::NewL

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

//

CPhoneKeyEventForwarder* CPhoneKeyEventForwarder::NewL(

        const TRect& aRect,

        MPhoneStateMachine* aStateMachine,

        MPhoneViewCommandHandle* aViewCommandHandle )

    {

    CPhoneKeyEventForwarder* self =

        new (ELeave) CPhoneKeyEventForwarder( aStateMachine, aViewCommandHandle );

    CleanupStack::PushL( self );

    self->ConstructL( aRect );

    CleanupStack::Pop( self );

    return self;

    }

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

// CPhoneKeyEventForwarder::~CPhoneKeyEventForwarder

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

//

CPhoneKeyEventForwarder::~CPhoneKeyEventForwarder()

    {

    __LOGMETHODSTARTEND( EPhoneControl, "CPhoneKeyEventForwarder::~CPhoneKeyEventForwarder");

    CEikonEnv* env = static_cast<CEikonEnv*>(ControlEnv());

    if( env )

        {

        env->EikAppUi()->RemoveFromStack( this );

        }

    delete iLongPressKeyEventTimer;

    }

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

// CPhoneKeyEventForwarder::CountComponentControls

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

//

TInt CPhoneKeyEventForwarder::CountComponentControls() const

    {

    __LOGMETHODSTARTEND( EPhoneControl, "CPhoneKeyEventForwarder::CountComponentControls");

    return 0;

    }

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

// CPhoneKeyEventForwarder::ComponentControl

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

//

CCoeControl* CPhoneKeyEventForwarder::ComponentControl(

        TInt /*aIndex*/ ) const

    {

    __LOGMETHODSTARTEND( EPhoneControl, "CPhoneKeyEventForwarder::ComponentControl");

    return NULL;

    }

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

// CPhoneKeyEventForwarder::SizeChanged

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

//

void CPhoneKeyEventForwarder::SizeChanged()

    {

    __LOGMETHODSTARTEND( EPhoneControl, "CPhoneKeyEventForwarder::SizeChanged");

    }

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

// CPhoneKeyEventForwarder::Draw

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

//

void CPhoneKeyEventForwarder::Draw(

        const TRect& /*aRect*/ ) const

    {

    __LOGMETHODSTARTEND( EPhoneControl, "CPhoneKeyEventForwarder::Draw");

    }

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

// CPhoneKeyEventForwarder::OfferKeyEventL

// Checks is hte keyevent such that the number entry can be opened

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

//

TKeyResponse CPhoneKeyEventForwarder::OfferKeyEventL(

        const TKeyEvent& aKeyEvent,

        TEventCode aType )

    {

    __LOGMETHODSTARTEND( EPhoneControl,

        "CPhoneKeyEventForwarder::OfferKeyEventL");

    TKeyResponse ret( EKeyWasNotConsumed );

    TKeyEvent keyEvent = aKeyEvent;

    ret = OfferKeyEventBeforeControlStackL( aKeyEvent, aType );

    // Convert event. Use already converted iKeyPressedDown.

    // Do not convert other than DTMF tones

    if( CPhoneKeys::IsDtmfTone( aKeyEvent, aType ) )

        {

        keyEvent.iCode = iKeyPressedDown;

        }

    if ( !keyEvent.iRepeats )

        {

        // Start and stop dtmf

        iStateMachine->State()->HandleDtmfKeyToneL( keyEvent, aType );

        if( aType != EEventKeyUp &&

            ( CPhoneKeys::IsNumericKey( keyEvent, aType ) ||

              IsAlphaNumericKey( keyEvent ) )

          )

            {

            // Do not open number entry with up key

            iStateMachine->State()->HandleCreateNumberEntryL( keyEvent, aType );

            }

        }

    return ret;

    }

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

// CPhoneKeyEventForwarder::CPhoneKeyEventForwarder

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

//

CPhoneKeyEventForwarder::CPhoneKeyEventForwarder(

    MPhoneStateMachine* aStateMachine,

    MPhoneViewCommandHandle* aViewCommandHandle  )

    : iStateMachine( aStateMachine ),

    iViewCommandHandle( aViewCommandHandle )

    {

    __LOGMETHODSTARTEND( EPhoneControl,

        "CPhoneKeyEventForwarder::CPhoneKeyEventForwarder");

    }

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

// CPhoneKeyEventForwarder::ConstructL

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

//

void CPhoneKeyEventForwarder::ConstructL( const TRect& aRect )

    {

    __LOGMETHODSTARTEND( EPhoneControl,

        "CPhoneKeyEventForwarder::ConstructL");

    if ( FeatureManager::FeatureSupported( KFeatureIdKeypadNoSlider ) )

        {

        RWindowGroup& groupWin = iCoeEnv->RootWin();

        }

    // Create invisible control.

    CreateWindowL();

    MakeVisible( EFalse );

    SetRect( aRect );

    CEikonEnv* env = static_cast<CEikonEnv*>(ControlEnv());

    if( env )

        {

        env->EikAppUi()->AddToStackL(

            this,

            ECoeStackPriorityEnvironmentFilter,

            ECoeStackFlagRefusesFocus );

        }

    // Create the long press key event timer

    iLongPressKeyEventTimer = CPhoneTimer::NewL();

    }

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

// CPhoneKeyEventForwarder::IsAlphaNumericKey

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

//

TBool CPhoneKeyEventForwarder::IsAlphaNumericKey( const TKeyEvent& aKeyEvent )

    {

    __LOGMETHODSTARTEND( EPhoneControl,

        "CPhoneKeyEventForwarder::IsAlphaNumericKey");

    TBool alphaNumeric =

       iStateMachine->State()->IsAlphanumericSupportedAndCharInput( aKeyEvent );

    return alphaNumeric;

    }

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

// CPhoneKeyEventForwarder::ConvertHalfQwertySpecialChar

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

//

TBool CPhoneKeyEventForwarder::ConvertHalfQwertySpecialChar( TUint& aCode,

        const TKeyEvent& aKeyEvent )

    {

    __LOGMETHODSTARTEND( EPhoneControl,

        "CPhoneKeyEventForwarder::ConvertHalfQwertySpecialChar");

    TBool ret( EFalse );

    TInt keyboard(KErrNotFound);

    if( keyboard == EPtiKeyboardHalfQwerty )

        {

        switch ( aKeyEvent.iScanCode )

           {

           case EStdKeyLeftShift:

               ret = ETrue;

               aCode = KPhoneDtmfHashCharacter;

               break;

           case EStdKeyLeftFunc:

               ret = ETrue;

               aCode = KPhoneDtmfStarCharacter;

               break;

           case EStdKeySpace:

               ret = ETrue;

               aCode = KPhoneDtmf0Character;

               break;

           default:

               break;

           }

        }

    __PHONELOG1( EBasic, EPhoneControl,

        "CPhoneKeyEventForwarder::ConvertHalfQwertySpecialChar =%d ",

        ret );

    return ret;

    }

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

// CPhoneKeyEventForwarder::OfferKeyEventBeforeControlStackL

// Let phone handle before other components in control stack

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

//

TKeyResponse CPhoneKeyEventForwarder::OfferKeyEventBeforeControlStackL(

    const TKeyEvent& aKeyEvent,

    TEventCode aType )

    {

    __LOGMETHODSTARTEND( EPhoneControl,

        "CPhoneKeyEventForwarder::OfferKeyEventBeforeControlStackL");

    TKeyResponse response( EKeyWasNotConsumed );

    if( !IsKeyBlocked( aKeyEvent ) )

        {

        // Handle key events before FEP

        // This is must becouse FEP consumes * key and when

        // editor is in alphanumeric mode FEP consumes all alphanumeric

        // keys

        switch( aType )

            {

             // EEventKeyDown

            case EEventKeyDown:

                response = HandleEventKeyDownBeforeControlStackL( aKeyEvent );

                break;

            // EEventKey

            case EEventKey:

                response = HandleEventKeyBeforeControlStackL( aKeyEvent );

                break;

            // EEventKeyUp

            case EEventKeyUp:

                response = HandleEventKeyUpBeforeControlStackL( aKeyEvent );

                break;

            default:

                break;

            }

        }

    return response;

    }

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

// CPhoneKeyEventForwarder::OfferKeyEventAfterControlStackL

// Let phone handle keys if no one has done it already

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

//

TKeyResponse CPhoneKeyEventForwarder::OfferKeyEventAfterControlStackL(

    const TKeyEvent& aKeyEvent,

    TEventCode aType )

    {

    __LOGMETHODSTARTEND( EPhoneControl,

        "CPhoneKeyEventForwarder::OfferKeyEventAfterControlStackL");

    if( !IsKeyBlocked( aKeyEvent ) )

        {

        // Send key to editor

        iStateMachine->State()->HandleKeyEventL( aKeyEvent, aType );

        if( EEventKeyUp == aType 

                && EKeyNull != iKeyPressedDown )

            {

            // Handle short key press

            iStateMachine->State()->HandleKeyMessageL( 

                MPhoneKeyEvents::EPhoneKeyShortPress, 

                TKeyCode( iKeyPressedDown ) );

            // Reset key code

            iScanCode = EStdKeyNull;

            iKeyPressedDown = EKeyNull;

            }

        }

    return EKeyWasNotConsumed;

    }

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

// CPhoneKeyEventForwarder::HandleEventKeyDownBeforeControlStackL

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

//

TKeyResponse CPhoneKeyEventForwarder::HandleEventKeyDownBeforeControlStackL(

    const TKeyEvent& aKeyEvent )

    {

    __LOGMETHODSTARTEND( EPhoneControl,

        "CPhoneKeyEventForwarder::HandleEventKeyDownBeforeControlStackL");

    // Convert key code

    ConvertKeyCode( iKeyPressedDown, aKeyEvent );

    // Save key scan code

    iScanCode = aKeyEvent.iScanCode;

    // Start the key press timer

    iKeyPressTime.UniversalTime();

    // Cancel the long press key event timer, if it is active

    if ( iLongPressKeyEventTimer->IsActive() )

        {

        iLongPressKeyEventTimer->CancelTimer();

        }

    // Re-start the timer

    iLongPressKeyEventTimer->After(

        KPhoneLongPressKeyEventDuration,

        TCallBack( DoHandleLongPressKeyEventCallbackL,

        this ) );

    return ( EKeyWasNotConsumed );

    }

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

// CPhoneKeyEventForwarder::HandleEventKeyBeforeControlStackL

// Both short key press event (iRepeats == 0) and

// long key press event (iRepeats == 1) are handled here

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

//

TKeyResponse CPhoneKeyEventForwarder::HandleEventKeyBeforeControlStackL(

    const TKeyEvent& aKeyEvent )

    {

    __LOGMETHODSTARTEND( EPhoneControl,

        "CPhoneKeyEventForwarder::HandleEventKeyBeforeControlStackL");

    TKeyResponse response( EKeyWasNotConsumed );

    // Convert event.

    TKeyEvent keyEvent = aKeyEvent;

    keyEvent.iCode = iKeyPressedDown;

    if(  aKeyEvent.iRepeats > 0 &&

        CPhoneKeys::IsDtmfTone( keyEvent, EEventKey ) )

        {

        // Do not repeat dtmf characters

        response = EKeyWasConsumed;

        }

    return response;

    }

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

// CPhoneKeyEventForwarder::HandleEventKeyUpBeforeControlStackL

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

//

TKeyResponse CPhoneKeyEventForwarder::HandleEventKeyUpBeforeControlStackL(

    const TKeyEvent& aKeyEvent )

    {

    __LOGMETHODSTARTEND( EPhoneControl,

        "CPhoneKeyEventForwarder::HandleEventKeyUpBeforeControlStackL");

    // Send a long press key event to the current state provided

    // that the key scan code is the same as the key that was pressed

    if ( iScanCode == aKeyEvent.iScanCode )

        {

        // Pass the key press duration to the current state

        TTime now;

        now.UniversalTime();

        TTimeIntervalMicroSeconds keyPressDuration = now.MicroSecondsFrom(

           iKeyPressTime );

        iStateMachine->State()->HandleKeyPressDurationL(

            TKeyCode( iKeyPressedDown ),

            keyPressDuration );

        // Cancel the long press timer, if it is active. Otherwise

        // ignore the key event since it was already handled as a long press

        // key event.

        if ( iLongPressKeyEventTimer->IsActive() )

            {

            iLongPressKeyEventTimer->CancelTimer();

            }

        }

    return EKeyWasNotConsumed;

    }

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

// CPhoneKeyEventForwarder::DoHandleLongPressKeyEventCallback

//

// This routine is called when the long press key event timer expires

// after KPhoneLongPressKeyEventDuration.

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

//

TInt CPhoneKeyEventForwarder::DoHandleLongPressKeyEventCallbackL( TAny* aAny )

    {

    __LOGMETHODSTARTEND( EPhoneControl,

        "CPhoneKeyEventForwarder::DoHandleLongPressKeyEventCallbackL");

    __ASSERT_DEBUG( aAny,

        Panic( EPhoneCtrlUnknownPanic ) );

    reinterpret_cast< CPhoneKeyEventForwarder* >( aAny )->

        HandleLongPressKeyEventL();

    return KErrNone;

    }

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

// CPhoneKeyEventForwarder::HandleLongPressKeyEventL

// Handle long press key event

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

//

void CPhoneKeyEventForwarder::HandleLongPressKeyEventL()

    {

    __LOGMETHODSTARTEND( EPhoneControl,

        "CPhoneKeyEventForwarder::HandleLongPressKeyEventL");

    // In alphanumeric mode EEventKey-event is not received so we must

    // compare also with scan code.

    if ( KPhoneDtmfHashCharacter == iKeyPressedDown )

        {

        // Separate handling for long hash key because there is so much

        // different functionality under it and it works differently

        // in different protocols.

        iStateMachine->State()->HandleLongHashL();

        }

    else if ( KPhoneDtmfStarCharacter == iKeyPressedDown )

        {

        // KPhoneDtmfStarCharacter value used in configuration file for

        // long key press application launching

        iStateMachine->State()->HandleKeyMessageL(

               MPhoneKeyEvents::EPhoneKeyLongPress,

               TKeyCode( KPhoneDtmfStarCharacter ) );

        }

    else

        {

        __PHONELOG1(

            EBasic, EPhoneControl,

            "CPhoneKeyEventHandler::HandleLongPressKeyEventL iCode(%d)",

            iKeyPressedDown );

        iStateMachine->State()->HandleKeyMessageL(

            MPhoneKeyEvents::EPhoneKeyLongPress,

            TKeyCode( iKeyPressedDown ) );

        }

    // Reset key code

    iScanCode = EStdKeyNull;

    iKeyPressedDown = EKeyNull;

    }

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

// CPhoneKeyEventForwarder::ConvertKeyCode

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

//

void CPhoneKeyEventForwarder::ConvertKeyCode( TUint& aCode,

        const TKeyEvent& aKeyEvent )

    {

    __LOGMETHODSTARTEND( EPhoneControl,

        "CPhoneKeyEventForwarder::ConvertKeyCode");

    // Handler for special device key mapping in case iScanCode

    // to iCode conversion hasn't been handled by CAknAppUi::GetAliasKeyCodeL

    __PHONELOG1( EBasic, EPhoneControl,

        "CPhoneKeyEventHandler::ConvertKeyCode scan code (%d)",

        aKeyEvent.iScanCode );

    if( !ConvertHalfQwertySpecialChar( aCode, aKeyEvent ) )

        {

        switch ( aKeyEvent.iScanCode )

            {

            case EStdKeyEnter:

                aCode = EKeyEnter;

                break;

            case EStdKeyYes:

                aCode = EKeyYes;

                break;

            case EStdKeyNo:

                aCode = EKeyNo;

                break;

            case EStdKeyDeviceF:

                aCode = EKeyDeviceF;  // EStdKeyDeviceF mapping for unlock switch.

                break;

            case EStdKeyHash:

                aCode = KPhoneDtmfHashCharacter;

                break;

            case EStdKeyNkpAsterisk:

                aCode = KPhoneDtmfStarCharacter;

                break;              

            case EStdKeyApplication0: