telephonyutils/etel3rdpartyapi/ExampleApps/Shared/CBaseMenuAsync.cpp
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     1 // Copyright (c) 2005-2009 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 
       
    17 #include "CBaseMenuAsync.h"
       
    18 
       
    19 /**
       
    20 Completes a request so that the RunL() code of the active object is executed.
       
    21 
       
    22 @param aErr The error code to pass to User::RequestComplete().
       
    23 */
       
    24 void CBaseMenuAsync::CompleteOwnRequest(TInt aErr)
       
    25 	{
       
    26 	TRequestStatus* status = &iStatus;
       
    27 	
       
    28 	// Complete an asynchronous request
       
    29 	User::RequestComplete(status, aErr);
       
    30 	}
       
    31 
       
    32 /**
       
    33 Starts (this) active object making it active so it can take
       
    34 input and perform required functionality.
       
    35 */
       
    36 void CBaseMenuAsync::Start()
       
    37 	{
       
    38 	PostOwnRequest();
       
    39 	SetActive();
       
    40 	CompleteOwnRequest(KErrNone);
       
    41 	}
       
    42 
       
    43 /**
       
    44 Sets its own status to KRequestPending.
       
    45 */
       
    46 void CBaseMenuAsync::PostOwnRequest()
       
    47 	{
       
    48 	iStatus = KRequestPending;
       
    49 	}
       
    50 
       
    51 /**
       
    52 Ends execution of the active object.
       
    53 */
       
    54 void CBaseMenuAsync::Terminate()
       
    55 	{
       
    56 	iState = EEnd;
       
    57 	SetActive();
       
    58 	CompleteOwnRequest(KErrNone);
       
    59 	}
       
    60 
       
    61 /**
       
    62 Constructor.
       
    63 
       
    64 @param aConsole Reference to console object to which output will be displayed
       
    65 */
       
    66 CBaseMenuAsync::CBaseMenuAsync(CConsoleBase& aConsole)
       
    67 	: CActive(EPriorityUserInput),
       
    68 	  iState(EStart),
       
    69 	  iConsole(&aConsole)
       
    70 	{
       
    71 	CActiveScheduler::Add(this);
       
    72 	}
       
    73 
       
    74 /**
       
    75 Places a request for input to the console, reads the input character from the
       
    76 keypad (keyboard etc.)
       
    77 */
       
    78 void CBaseMenuAsync::GetInput()
       
    79 	{
       
    80 	// Gets a keystroke from the console window, asynchronously.
       
    81 	iConsole->Read(iStatus);
       
    82 	iState = EWaitingForKeyPress;
       
    83 	SetActive();
       
    84 	}
       
    85 
       
    86 /**
       
    87 Second phase constructor.
       
    88 */
       
    89 void CBaseMenuAsync::ConstructL()
       
    90 	{
       
    91 	iTelephony = CTelephony::NewL();
       
    92 	}