telephonyutils/telephonywatchers/inc/watcherbase.h
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     1 // Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 
       
    16 #ifndef __WATCHERBASE_H__
       
    17 #define __WATCHERBASE_H__
       
    18 
       
    19 // System includes
       
    20 #include <e32base.h>
       
    21 #include <etelext.h>
       
    22 #include <etelmm.h>
       
    23 #include <etel.h>
       
    24 
       
    25 // User includes
       
    26 #include "phoneonoff.h"
       
    27 #include "ModemChangeObserver.h"
       
    28 
       
    29 // Test code hooks (when this file is embedded inside an EXE)
       
    30 #include "WatcherTestHooks.h"
       
    31 
       
    32 /**
       
    33 Constants
       
    34 @internalComponent
       
    35 */
       
    36 const TInt KErrorRetryCount = 3;
       
    37 const TInt KErrorRetryPausePeriod = 60; // Seconds
       
    38 const TInt KWatcherBaseModemNotDetected = -2017;
       
    39 
       
    40 const TUint KPhonePropertyKey = 0; //-- Phone properties key
       
    41 
       
    42 #ifdef WATCHER_TESTING
       
    43 
       
    44 //-- These UIds used for debugging purposes only by T_WATCHERS test.
       
    45 
       
    46 //-- Changing property with this Uid (to any value) informs that CTelPhoneWatcher has re-read modem table from Commdb in
       
    47 //-- CTelPhoneWatcher::DoRetrieveTSYNameL(). 
       
    48 const TUid  KUidTestProp_ModemTableRefreshed    = {0x11111111};
       
    49                                                                                            
       
    50 //-- Property with this Uid is changed in CTelPhoneWatcher::HandleModemChangedL()
       
    51 //-- when the Commdb modem record has been changed
       
    52 const TUid  KUidTestProp_ModemRecordChanged     = {0xDEADBEEF};
       
    53 
       
    54 //-- Property with this Uid is used in CIndicatorWatcher::HandleIndicatorUpdateL()
       
    55 //-- to simulate call state change by t_watchers test
       
    56 const TUid  KUidTestProp_CallStateChange        = {0x12341234};
       
    57 
       
    58 //-- Property with this Uid is used to disable and reset phone watchers
       
    59 const TUid  KUidTestProp_WatchersDisable        = {0xFABBBABE};
       
    60 
       
    61 #endif
       
    62 
       
    63 //
       
    64 // ------> CWatcherBase (header)
       
    65 //
       
    66 class CWatcherBase : public CActive
       
    67 /**
       
    68 @internalComponent
       
    69 */
       
    70 	{
       
    71 //
       
    72 public: // DESTRUCT
       
    73 //
       
    74 	IMPORT_C ~CWatcherBase();
       
    75 
       
    76 //
       
    77 protected: // CONSTRUCT
       
    78 //
       
    79 	IMPORT_C CWatcherBase(TInt aPriority = CActive::EPriorityStandard);
       
    80 	IMPORT_C virtual void ConstructL();
       
    81 
       
    82 //
       
    83 #ifdef WATCHER_TESTING
       
    84 public: // NEW FUNCTIONS
       
    85 #else
       
    86 protected: // NEW FUNCTIONS
       
    87 #endif
       
    88 //
       
    89 	IMPORT_C void SuspendFor(TInt aTimeInSeconds);
       
    90 	IMPORT_C void SetDisabled(const TDesC& aLogEntry, TInt aError);
       
    91 	IMPORT_C void RequestNextState();
       
    92 	IMPORT_C void WaitForPhoneToPowerUpL();
       
    93 	//
       
    94 	virtual void HandleStateEventL(TInt aCompletionCode) = 0;
       
    95 	virtual void HandleConnectionToChangeNotifierEstablishedL() { }
       
    96 	virtual void HandleCancel() = 0;
       
    97 	virtual void Reset() { }
       
    98 
       
    99 //
       
   100 protected: // INLINE MUTATORS
       
   101 //
       
   102 
       
   103 	enum TWatcherPanic
       
   104 		{
       
   105 		EGeneral,
       
   106 		EUnexpectedState,
       
   107 		EUnexpectedActiveState
       
   108 		};
       
   109 	void WatcherBasePanic(TWatcherPanic aPanicNumber);
       
   110 
       
   111 	inline TInt ErrorCountIncrement() { return ++iErrorCount; }
       
   112 	inline void ErrorCountReset() { iErrorCount = 0; }
       
   113 
       
   114 //
       
   115 private: // FROM CActive
       
   116 //
       
   117 	IMPORT_C void RunL();
       
   118 	IMPORT_C void DoCancel();
       
   119 	IMPORT_C TInt RunError(TInt aError);
       
   120 
       
   121 //
       
   122 private: // INTERNAL STATE
       
   123 //
       
   124 	enum TBaseState
       
   125 	{
       
   126 		EBaseStateConnectingToPropertyNotifier,
       
   127 		EBaseStatePassive,
       
   128 		EBaseStateSuspending,
       
   129 		EBaseStateDisabled,
       
   130 		EBaseStateWaitingForPhoneToPowerUp,
       
   131 		//
       
   132 		EBaseStateLast
       
   133 	};
       
   134 	inline TBaseState& State() { return iBaseState; }
       
   135 
       
   136 //
       
   137 private: // STATEMACHINE
       
   138 //
       
   139 	
       
   140 	// Error count
       
   141 	TInt iErrorCount;
       
   142 
       
   143 	// Our current state
       
   144 	TBaseState iBaseState;
       
   145 	
       
   146 	// Retry timer
       
   147 	RTimer iTimer;
       
   148 	
       
   149 	RProperty iPhonePowerProperty;
       
   150 	};
       
   151 
       
   152 
       
   153 
       
   154 
       
   155 
       
   156 //
       
   157 // ------> CPhoneWatcher (header)
       
   158 //
       
   159 class CPhoneWatcher : public CWatcherBase, public MPhoneOnOffObserver, public MModemChangeObserver
       
   160 /**
       
   161 @internalComponent
       
   162 */
       
   163 	{
       
   164 //
       
   165 public: // DESTRUCT
       
   166 //
       
   167 	IMPORT_C ~CPhoneWatcher();
       
   168 
       
   169 //
       
   170 protected: // CONSTRUCT
       
   171 //
       
   172 	IMPORT_C CPhoneWatcher(TInt aPriority = CActive::EPriorityStandard);
       
   173 	IMPORT_C void ConstructL();
       
   174 
       
   175 //
       
   176 protected: // NEW
       
   177 //
       
   178 	virtual void HandlePhoneStateEventL(TInt aCompletionCode) = 0;
       
   179 	virtual void ReleasePhoneResources() { }
       
   180 
       
   181 //
       
   182 protected: // INLINE MUTATORS
       
   183 //
       
   184 	inline RMobilePhone& Phone() { return iPhone; }
       
   185 	inline RTelServer& ETel() { return iETelServer; }
       
   186 
       
   187 //
       
   188 protected: // FROM CWatcherBase
       
   189 //
       
   190 	IMPORT_C void HandleStateEventL(TInt aCompletionCode);
       
   191 	IMPORT_C void Reset();
       
   192 
       
   193 //
       
   194 protected: // FROM MPhoneOnOffObserver
       
   195 //
       
   196 	IMPORT_C void PhoneIsOff();
       
   197 
       
   198 //
       
   199 private: // FROM MModemChangeObserver
       
   200 //
       
   201 	IMPORT_C void HandleModemChangedL();
       
   202 
       
   203 //
       
   204 private: // STANDARD SETUP STATE-MACHINE STEPS
       
   205 //
       
   206 	TInt RetrieveTSYName();
       
   207 	TInt ConnectToETelServer();
       
   208 	TInt LoadPhoneModule();
       
   209 	TInt ConnectToPhone();
       
   210 
       
   211 //
       
   212 private: // INTERNAL
       
   213 //
       
   214 	enum TPhoneState
       
   215 	{
       
   216 		EPhoneStateRetrievingTsyName = 0,
       
   217 		EPhoneStateConnectingToETel,
       
   218 		EPhoneStateLoadingPhoneModule,
       
   219 		EPhoneStateConnectingToPhone,
       
   220 		EPhoneStatePassive
       
   221 	};
       
   222 	inline TPhoneState& PhoneState() { return iPhoneState; }
       
   223 	void DoRetrieveTSYNameL();
       
   224 
       
   225 //
       
   226 private: // STATE MACHINE MEMBER DATA
       
   227 //
       
   228 	TName iTSYName;
       
   229 	TPhoneState iPhoneState;
       
   230 	//
       
   231 	RMobilePhone iPhone;
       
   232 	RTelServer iETelServer;	
       
   233 	
       
   234 	// Waits to be informed when the phone is turned on or off.
       
   235 	CPhoneOnOff* iPhoneWait;
       
   236 
       
   237 	// Waits to be informed when the CommsDb modem changes.
       
   238 	CModemChangeObserver* iModemChangeObserver;
       
   239 	};
       
   240 
       
   241 
       
   242 #endif