/*

* Copyright (c) 2010 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:

*

* This class implements general wait object for calling

* a callback function after subscribed P&S key value changes.

*

*/

#ifndef PROPERTYLISTENER_H

#define PROPERTYLISTENER_H

#include <e32base.h>

#include <e32property.h>

#include <jni.h>

namespace java

{

namespace installer

{

/**

 * This class implements wait object for calling a callback

 * function after subscribed P&S key value changes.

 */

NONSHARABLE_CLASS(CPropertyListener) : public CActive

{

public:  // Constructor and destructor

    static CPropertyListener* NewL(TUid aUid, TUint aKey);

    // Destructor.

    virtual ~CPropertyListener();

private:

    // Constructor.

    CPropertyListener(TUid aUid, TUint aKey);

    // 2nd phase constructor.

    void ConstructL();

    // from base class CActive

    void RunL();

    void DoCancel();

public: // Methods

    void ProcessEventsL(JNIEnv *aEnv, jobject aProvider);

private: // Data

    CActiveScheduler* iActiveScheduler; // Owned

    RProperty iProperty; // Property to listen

    TUid iUid; // Property UID

    TUint iKey; // Property key

    JNIEnv *iEnv; // JNI environment, not owned

    jobject iProvider; // Callback object

    jmethodID iMethod; // Callback method

    TBool iCancelled;

};

} // installer

} // java

#endif // PROPERTYLISTENER_H