textinput/peninputarc/inc/pensrvcliinc/peninputserversession.h
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     1 /*
       
     2 * Copyright (c) 2005-2006 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:  header file for peninput session
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 
       
    21 #ifndef C_CPENINPUTSESSION_H
       
    22 #define C_CPENINPUTSESSION_H
       
    23 
       
    24 //  INCLUDES
       
    25 #include <e32base.h>
       
    26 #include "peninputcmdparam.h"
       
    27 
       
    28 class CPeninputServer;
       
    29 class RMessage2;
       
    30 
       
    31 
       
    32 /**
       
    33  * This class represents a session in the server.
       
    34  *
       
    35  * Functions are provided to respond appropriately to client messages
       
    36  *
       
    37  * @since S60 v4.0
       
    38  */
       
    39 NONSHARABLE_CLASS(CPeninputServerSession) : public CSession2
       
    40     {
       
    41 public: 
       
    42     // Constructors and destructor
       
    43     /**
       
    44      * Constructor.
       
    45      *
       
    46      * @since S60 v4.0
       
    47      * @param aClient reference to client thread
       
    48      * @param aServer pointer to CPeninputServer
       
    49      */
       
    50     CPeninputServerSession(RThread &aClient, CPeninputServer& aServer);
       
    51     
       
    52     /**
       
    53      * Destructor.
       
    54      *
       
    55      * @since S60 v4.0
       
    56      */
       
    57     ~CPeninputServerSession();
       
    58     
       
    59     /**
       
    60      * Static initializer.
       
    61      *
       
    62      * @since S60 v4.0
       
    63      * @param aClient reference to client thread
       
    64      * @param aServer pointer to CPeninputServer
       
    65      * @return Sever session created
       
    66      */
       
    67     static CPeninputServerSession* NewL(RThread &aClient, 
       
    68     											CPeninputServer& aServer);
       
    69 
       
    70     /**
       
    71      * Signals the client with the given code, if the client has
       
    72      * registered as observer.
       
    73      *
       
    74      * @since S60 v4.0
       
    75      * @param aSignalCode The event code
       
    76      * @param aEventData The event data
       
    77      * @return ETrue if client was signalled succesfully, EFalse otherwise.
       
    78      */
       
    79     TBool SignalClientL(TInt aSignalCode,const TDesC& aEventData);
       
    80 
       
    81     /**
       
    82      * Signals the client that UI is activated or deactivaed.
       
    83      *
       
    84      * @since S60 v4.0
       
    85      * @param aSignalCode The event code
       
    86      * @param aType pen ui type associated with this event
       
    87      * @return ETrue if client was signalled succesfully, EFalse otherwise.
       
    88      */
       
    89     TBool SignalUiActivationObserver(TInt aSignalCode,TInt aType);
       
    90     
       
    91     
       
    92     /**
       
    93      * Handling pending event before this session is closed.
       
    94      *
       
    95      * @since S60 v4.0
       
    96      */    
       
    97     void ProcessPendingEventBeforeExit();
       
    98     
       
    99     /*
       
   100      * Returns id of the application thread that created this session.
       
   101      *
       
   102      * @since S60 v4.0
       
   103      * @return client thread id
       
   104      */
       
   105     TInt ClientId();
       
   106     
       
   107     /**
       
   108      * Increase the delayed command count
       
   109      *
       
   110      * @since S60 v4.0
       
   111      */    
       
   112     void AddDelayedCmd();
       
   113     
       
   114 
       
   115     /**
       
   116      * Regiseter the ui type to be monitored.
       
   117      *
       
   118      * @since S60 v4.0
       
   119      * @aType The ui type to be monitored.
       
   120      */    
       
   121     void RegisterPenUiType(TInt aType);
       
   122     
       
   123     /**
       
   124      * Panic client
       
   125      *
       
   126      * @since S60 v4.0
       
   127      * @param aMessage The client message
       
   128      * @param aPanic panic code
       
   129      */
       
   130     static void PanicClient(const RMessage2& aMessage ,TInt aPanic );    
       
   131 
       
   132     // from base classes CSession2
       
   133 
       
   134     /**
       
   135      * From CSession2.
       
   136      * handle client request
       
   137      *
       
   138      * @since S60 v4.0
       
   139      * @param aMessage The client request message
       
   140      */
       
   141     virtual void ServiceL( const RMessage2 &aMessage );
       
   142     
       
   143     /**
       
   144      * To get disabled layouts for the session of RMessage
       
   145      *
       
   146      * @since S60 v6.0
       
   147      * @param aDisabledLayouts The disabled mode to set
       
   148      */   
       
   149     const TProcessId& ClientProcessId();
       
   150     TInt DisabledUiType();
       
   151     
       
   152     TInt DoUpdateAppInfo();
       
   153     
       
   154     inline TBool DsaEverHappened() const;
       
   155 private:    // New functions
       
   156     /**
       
   157      * 2nd phase constuctor
       
   158      *
       
   159      * @since S60 v4.0
       
   160      */
       
   161     void ConstructL();
       
   162     
       
   163     /**
       
   164      * handle client request
       
   165      *
       
   166      * @since S60 v4.0
       
   167      * @param aMessage The client request message
       
   168      * @return The operation result code
       
   169      */
       
   170     TInt DoServiceL( const RMessage2 &aMessage );
       
   171 
       
   172 
       
   173     /**
       
   174      * Remove the given event data
       
   175      *
       
   176      * @since S60 v4.0
       
   177      * @param aIndex The event to be remvoed. If aIndex < 0, all events
       
   178      * are removed.
       
   179      */
       
   180     void RemoveEventDataByIdx(TInt aIndex);
       
   181     
       
   182     /**
       
   183      * Save data and complete the pending request
       
   184      *
       
   185      * @since S60 v4.0
       
   186      * @param aSignalCode The event code
       
   187      * @param aEventData The event data
       
   188      * @param aPos The event data position. if -1, then append to the end.
       
   189      * @return ETrue if OK.
       
   190      */    
       
   191     TBool CompletePendingRequestL(TInt aSignalCode,const TDesC& aEventData,
       
   192                                                             int aPos = -1);
       
   193     
       
   194     TInt HandleAppInfoChange(const RMessage2& aMessage);
       
   195     TInt HandleAppInfoChangeL(const RMessage2& aMessage);
       
   196     /**
       
   197      * Build the event buf to send to client. 
       
   198      * It checks whether we can combine several events data together to send in one round.
       
   199      *
       
   200      * @since S60 v5.0
       
   201      * @return The number of combined event. -1 if there is no memory to build data buffer.
       
   202      */        
       
   203     TInt BuildEventData();
       
   204     
       
   205     /**
       
   206      * Remove the given number of event data
       
   207      *
       
   208      * @since S60 v5.0
       
   209      * @param aNum The number of events to be remvoed.
       
   210      */    
       
   211     void RemoveEventDatas(TInt aNum);
       
   212     
       
   213     /**
       
   214      * Send the event data via the given message.
       
   215      *
       
   216      * @since S60 v5.0
       
   217      * @return KErrNone if succefully, otherwise returns the length needed for msg buf.
       
   218      */                
       
   219     TInt SendEventData(const RMessage2& aMessage, const TDesC& aData);
       
   220 private:    // Data
       
   221 
       
   222     /** 
       
   223      * Reference to PENINPUT server 
       
   224      */
       
   225     CPeninputServer& iPenInputSvr;  
       
   226 
       
   227     /** 
       
   228      * Each client can have one pending request which is issued with function 
       
   229      * RequestMessageNotification and is signalled when the client has to switch
       
   230      * FEP or launch help application. Pointer not owned.
       
   231      */
       
   232     RMessage2 iPendingRequest;
       
   233 
       
   234     /**
       
   235      * Flag to indicate whether client has issued a notification request.
       
   236      */ 
       
   237     TBool iObserverActive;
       
   238 
       
   239     /** 
       
   240      * Id of the client thread for debugging purposes 
       
   241      */
       
   242     TInt iClientId;    
       
   243     
       
   244     /** 
       
   245      * Delayed command count for this session 
       
   246      */    
       
   247     TInt iDelayedCmd;
       
   248     
       
   249     /**
       
   250      * The pen ui type to be monitored
       
   251      */ 
       
   252     TInt iRegistedPenUiType;    
       
   253 
       
   254     /**
       
   255      * event code array
       
   256      */
       
   257     RArray<TInt> iSignalCodeArray;
       
   258 
       
   259     /**
       
   260      * session data buffer 
       
   261      * Own
       
   262      */
       
   263     RPointerArray<HBufC> iDataBuf;    
       
   264     
       
   265     RBuf iCombinedEventBuf;    
       
   266     TInt iCombinedMsgNum;
       
   267     
       
   268     TInt iCombinedEventId;    
       
   269     
       
   270     TProcessId iClientProcess;
       
   271     
       
   272     HBufC* iAppInfo;
       
   273     
       
   274     TPeninputAppInfo iAppInfoType;
       
   275     TInt iDisabledUiType;
       
   276     TBool iDsaEverHappened;
       
   277     };
       
   278 #endif //C_CPENINPUTSESSION_H
       
   279 
       
   280 inline TBool CPeninputServerSession::DsaEverHappened() const
       
   281 	{
       
   282 	return iDsaEverHappened;
       
   283 	}
       
   284 // End of File