/*

* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  Implemetation of WidgetEventHandler

*

*/

#include "WidgetEventHandler.h"

#include "config.h"

#include <kjs/object.h>

#include "WidgetJSObjectProtector.h"

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

using namespace KJS;

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

// WidgetEventHandler::WidgetEventHandler

//

//

//

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

WidgetEventHandler::WidgetEventHandler( JSValue* aValue, ExecState* aExecState, MJSObjectProtector* aProtector) : iGlobalExecState (aExecState), iProtector(aProtector)

{

    iEventHandler = aValue;

    if(iProtector)

        {

	    iProtector->Protect(iEventHandler);

	    }

}

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

// WidgetEventHandler::~WidgetEventHandler

//

//

//

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

WidgetEventHandler::~WidgetEventHandler()

{

    if(iProtector) 

        {

	    iProtector->Unprotect(iEventHandler);

	    }

}

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

// WidgetEventHandler::Delete

// Delete event handler if it isn't handling an event

// If InvokeCall is executing then delete after it's done.

//

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

void WidgetEventHandler::Delete()

{

    if (iInUse) {

        iSelfDelete = ETrue;

    }

    else {

        delete this;

    }

}

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

// WidgetEventHandler::InvokeCall

// Invokes the callback function

//

//

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

void WidgetEventHandler::InvokeCall( const TInt& aParam )

{

    iInUse = ETrue;

    if (iEventHandler) {

        JSLock::lock();

        if (iGlobalExecState &&

            iGlobalExecState->dynamicInterpreter()) 

        {

            if (iEventHandler &&

                !iEventHandler->isNull() &&

                iEventHandler->isObject()) {

                KJS::List args;

                if ( aParam != -1 ) {

                    args.append( jsNumber(aParam) );

                }

                JSObject* objFunc = static_cast<JSObject*>(iEventHandler);

                if (objFunc->implementsCall()) {

                    objFunc->call(iGlobalExecState,iGlobalExecState->dynamicInterpreter()->globalObject(),args);

                }

                if ( iGlobalExecState->hadException() ) {

                    iGlobalExecState->clearException();

                }

            }

        }

        JSLock::unlock();

    }

    iInUse = EFalse;

    if (iSelfDelete)

        {

        delete this;

        }

}