--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javaextensions/sensor/src.s60/cnetworkfieldintensitysensor.h	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,153 @@
+/*
+* Copyright (c) 2008 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:  Network field intensity sensor implementation
+*
+*/
+
+#ifndef CNETWORKFIELDINTENSITYSENSOR_H
+#define CNETWORKFIELDINTENSITYSENSOR_H
+
+#include <etel3rdparty.h>
+#include "csensorbase.h"
+
+class CNetworkFieldIntensitySensor : public CSensorBase
+{
+    // Asynchronous query helper class
+    class CSignalAsyncHandler : public CActive
+    {
+    public:
+        enum TOperation
+        {
+            EOperationNone = 0,
+            EGetSignalIntensity,
+            ENotifySignalIntensityChange
+        };
+
+    public:
+        static CSignalAsyncHandler* NewL(CNetworkFieldIntensitySensor& aSensor);
+        virtual ~CSignalAsyncHandler();
+
+    protected:
+        CSignalAsyncHandler(CNetworkFieldIntensitySensor& aSensor);
+        void ConstructL();
+
+    public: // From CActive
+        void RunL();
+        void DoCancel();
+
+    public: // New methods
+        void SetDataListeningMode(TBool aIsDataListening);
+        void SetConditionListeningMode(TBool aIsConditionListening);
+
+    private: // New Methods
+        void Start();
+
+    private: // Members
+        CNetworkFieldIntensitySensor& iSensor;
+
+        CTelephony* iTelephony;
+        CTelephony::TSignalStrengthV1 iSigStrengthV1;
+        CTelephony::TSignalStrengthV1Pckg iSigStrengthV1Pckg;
+        CSignalAsyncHandler::TOperation iCurrentOperation;
+
+        /**
+         * State variables
+         */
+        TBool iDataListening;
+        TBool iConditionListening;
+
+        /**
+         * Used to evaluate whether to execute condition evaluation
+         * when conditions are set and data listening is ongoing.
+         */
+        TInt iPrevSignalStrength;
+    };
+
+public:
+    /**
+     * Creates new CNetworkFieldIntensitySensor
+     */
+    static CNetworkFieldIntensitySensor* NewL();
+
+    /**
+     * Destructor
+     */
+    virtual ~CNetworkFieldIntensitySensor();
+
+protected:
+
+    /**
+     * Symbian second phase constructor
+     */
+    void ConstructL();
+
+    /**
+     * Constructor
+     */
+    CNetworkFieldIntensitySensor();
+
+public: // From Sensor
+
+    virtual int OpenChannel(SensorListener* aListener);
+
+public: // From CSensorBase
+
+    virtual    HBufC* CreateDescriptionLC();
+    virtual CSensorBase* DuplicateL();
+    virtual TReal InterpretValue(TReal aValue);
+
+    virtual void StartDataListeningL();
+    virtual void CancelDataListeningL();
+    virtual void CloseChannelL();
+    virtual void StartConditionListeningL();
+    virtual void StopConditionListeningL();
+
+public: // New methods
+    /**
+     * Reset data object and those member variables that are
+     * involved in data accumulation round.
+     */
+    void ResetAccumulationData();
+
+    /**
+     * Used by AccumulateDataL to send data to Java side and do
+     * necessary cleanup.
+     */
+    void SendData();
+
+    /**
+     * Callback method called by RunL of iSignalRequest
+     */
+    void SignalLevelReceivedL(TInt aLevel);
+
+    /**
+     * Callback method called by RunL of iNotifier
+     */
+    void SignalLevelChangedL(TInt aLevel);
+
+private: // Member data
+    /**
+     * Used to request notifications about signal level changes
+     */
+    CSignalAsyncHandler* iNotifier;
+
+    /**
+     * Values used in data accumulation
+     */
+    TTime iStartTime;
+    TInt iBufferPosition;
+
+};
+
+#endif // CNETWORKFIELDINTENSITYSENSOR_H