// Copyright (c) 1997-2009 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 "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:+
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//+
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+
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#ifndef __APGNOTIF_H__+
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#define __APGNOTIF_H__+
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+
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#include <apgcli.h>+
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+
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+
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class MApaAppListServObserver+
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/**+
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MApaAppListServObserver is interface to get application list change notifications.+
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+
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@publishedPartner+
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@released+
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*/+
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	{+
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public:+
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	enum TApaAppListEvent+
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		{+
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		EAppListChanged=1+
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		};+
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	virtual void HandleAppListEvent(TInt aEvent)=0;+
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protected:+
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	IMPORT_C MApaAppListServObserver();+
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private:+
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	IMPORT_C virtual void MApaAppListServObserver_Reserved1();+
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	IMPORT_C virtual void MApaAppListServObserver_Reserved2();+
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private:+
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	TInt iMApaAppListServObserver_Reserved1;+
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	};+
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+
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+
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class CApaAppListNotifier : public CActive+
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/** +
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 * CApaAppListNotifier is an active object which notifies the client when an application list is changed.+
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 * Provides notification when applications are added, deleted or if the localisable data of an application+
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 * is modified.+
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 * +
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 * Clients can create instance of this class using NewL function which takes MApaAppListServObserver+
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 * observer as one of the parameters. When application list is changed, CApaAppListNotifier will call +
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 * HandleAppListEvent function of the provided observer. +
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 * +
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 * +
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 * Example:+
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 * +
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 * //Implementation of observer interface+
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 * class CAppListChangeObserver:public CBase, public MApaAppListServObserver+
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 * {+
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 * public:+
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 *     void HandleAppListEvent(TInt aEvent);    +
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 *     CApaAppListNotifier* iNotifier;    +
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 * };+
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 * +
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 * //This function is called by CApaAppListNotifier when an application list is changed +
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 * void CAppListChangeObserver::HandleAppListEvent(TInt aEvent)+
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 * {+
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 *     //Handle application list change event+
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 *     ...+
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 * }+
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 * +
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 * +
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 * TInt E32Main()+
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 * {+
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 * ....+
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 * +
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 * CAppListChangeObserver* obs=new(ELeave) CAppListChangeObserver();+
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 * CApaAppListNotifier *notif=CApaAppListNotifier::NewL(obs, CActive::EPriorityStandard);+
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 * +
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 * ....+
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 * }+
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 * +
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 * +
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+
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@publishedPartner+
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@released */+
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	{+
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public:+
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	IMPORT_C ~CApaAppListNotifier();+
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	IMPORT_C static CApaAppListNotifier* NewL(MApaAppListServObserver* aObserver, TPriority aPriority);+
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private: // from CActive+
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	void DoCancel();+
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	void RunL();+
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    TInt RunError(TInt aError);	+
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private:+
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	CApaAppListNotifier(MApaAppListServObserver& aObserver, TPriority aPriority);+
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	void ConstructL();+
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private:+
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	MApaAppListServObserver& iObserver;+
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	RApaLsSession iLsSession;+
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	};+
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+
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#endif+
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