1 /*

     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15  *

    16 */

    17 

    18 

    19 #ifndef CLOCATIONPROVIDER_H

    20 #define CLOCATIONPROVIDER_H

    21 

    22 //  INCLUDES

    23 #include <e32base.h>

    24 #include <lbs.h>

    25 #include <jni.h>

    26 #include "locationfunctionserver.h"

    27 

    28 namespace java

    29 {

    30 namespace location

    31 {

    32 

    33 //  FORWARD DECLARATIONS

    34 class LocationFunctionServer;

    35 class CPositioner;

    36 class CTrackingPositioner;

    37 class CPosGlobalPrivacyDb;

    38 class CDelayStateChangeTimer;

    39 

    40 // CLASS DECLARATION

    41 

    42 /**

    43  *  Handles LocationProvider operations.

    44  */

    45 class CLocationProvider: public CActive

    46 {

    47 public:

    48     // Constructors and destructor

    49 

    50     /**

    51      * Two-phased constructor.

    52      */

    53     static void NewL(LocationFunctionServer* aFunctionSource, TInt* aHandle);

    54 

    55     /**

    56      * Destructor.

    57      */

    58     ~CLocationProvider();

    59 

    60 public:

    61     // New functions

    62 

    63     static void StaticCreatePositionerL(JNIEnv* aJni, jobject aPositioner,

    64                                         CLocationProvider* aSelf, TInt* aHandle,

    65                                         LocationFunctionServer* aFunctionSource);

    66 

    67     void SelectModuleL(TInt aHacc, TInt aVacc, TInt aRespTime, TInt aPower,

    68                        TInt aRequiredFlags, TInt* aLocationMethod);

    69 

    70 protected:

    71     // Functions from base classes

    72 

    73     /**

    74      * From CBase

    75      */

    76     void RunL();

    77 

    78     /**

    79      * From CBase

    80      */

    81     void DoCancel();

    82 

    83 private:

    84 

    85     /**

    86      * C++ default constructor.

    87      */

    88     CLocationProvider(LocationFunctionServer* aEventSource);

    89 

    90     /**

    91      * By default Symbian 2nd phase constructor is private.

    92      */

    93     void ConstructL();

    94 

    95 private:

    96 

    97     CPositioner* CreatePositionerL();

    98 

    99     static TBool CheckRequirements(const TPositionQuality& aQuality,

   100                                    TPositionModuleInfo::TCapabilities aCaps, TInt aHacc, TInt aVacc,

   101                                    TInt aRespTime, TInt aPower, TInt aRequiredFlags);

   102 

   103     void RequestModuleStatus();

   104 

   105     TInt StatusToState(TPositionModuleStatus& aStatus);

   106 

   107     void ChangeState(TInt aState);

   108 

   109     TBool AllLocationRequestsDeniedL();

   110 

   111 public:

   112     CTrackingPositioner* iTrackingPositioner;

   113 

   114     // JNI Environment Data

   115     JNIEnv* mJni;

   116     jobject mPeer;

   117 

   118     // Location Updated Callback JNI Method ID

   119     jmethodID mStateChangMethod;

   120 

   121 private:

   122     // Data

   123     LocationFunctionServer* mFunctionServer;

   124     RPositionServer iPositionServer;

   125     TPositionModuleId iModuleId;

   126     TPositionModuleInfo::TCapabilities iCapabilities;

   127     TPositionModuleStatusEvent iStatusEvent;

   128     TInt iState;

   129     TInt iNewState;

   130     CDelayStateChangeTimer* iStateTimer;

   131 private:

   132     friend class CDelayStateChangeTimer;

   133 };

   134 

   135 }

   136 }

   137 #endif // CLOCATIONPROVIDER_H

   138 // End of File