webengine/device/src/ServiceEventHandler.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 15 Sep 2010 13:25:15 +0300
branchRCL_3
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parent 0 dd21522fd290
permissions -rw-r--r--
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/*
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* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  Implemetation of ServiceEventHandler
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*
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*/
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#include <config.h>
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#include "ServiceEventHandler.h"
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#include <object.h>
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#include <protect.h>
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#include <interpreter.h>
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#include <list.h>
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#include <e32base.h>
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// ============================ MEMBER FUNCTIONS ===============================
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using namespace KJS;
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// ----------------------------------------------------------------------------
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// ServiceEventHandler::ServiceEventHandler
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//
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//
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//
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// ----------------------------------------------------------------------------
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//
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ServiceEventHandler::ServiceEventHandler(
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    ExecState* execState, const JSObject* aInterfaceFunc, const JSValue* aCallbackFunc, const TInt aTransId )
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    : iGlobalExecState( execState )
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    {
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    iInterfaceFunc = (JSObject*)aInterfaceFunc;
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    iCallbackFunc = (JSObject*)aCallbackFunc;
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    KJS::Collector::protect(iCallbackFunc);
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    iTransId = aTransId;
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    }
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// ----------------------------------------------------------------------------
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// ServiceEventHandler::~ServiceEventHandler
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//
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//
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//
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// ----------------------------------------------------------------------------
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//
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ServiceEventHandler::~ServiceEventHandler()
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    {
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    KJS::Collector::unprotect(iCallbackFunc);
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    }
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// ----------------------------------------------------------------------------
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// ServiceEventHandler::InvokeCall
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// Caller supplies a KJS::List as the param
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//
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//
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// ----------------------------------------------------------------------------
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//
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void ServiceEventHandler::InvokeCall( const List& aParam )
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    {
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    if ( iInterfaceFunc && iCallbackFunc )
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        {
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        JSLock::lock();
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        if ( iGlobalExecState &&
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             !iCallbackFunc->isNull() && iCallbackFunc->isObject()  )
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            {
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            JSObject* objFunc = static_cast<JSObject*>(iCallbackFunc);
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            if (objFunc->implementsCall())
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            {
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            objFunc->call( iGlobalExecState, iInterfaceFunc, aParam ); // note that call() creates its own execution state for the func call
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            }
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            if ( iGlobalExecState->hadException() )
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                {
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                iGlobalExecState->clearException();
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                }
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            }
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        JSLock::unlock();
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        }
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    }
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// ----------------------------------------------------------------------------
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// ServiceEventHandler::EventHandler
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//
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//
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//
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// ----------------------------------------------------------------------------
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//
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JSValue* ServiceEventHandler::CallbackFunc() const
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    {
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    return iCallbackFunc?iCallbackFunc:jsUndefined();
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    }
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//END OF FILE