vtengines/videoteleng/Src/State/CVtEngStateIdle.cpp
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     1 /*
       
     2 * Copyright (c) 2004-2006 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:  Idle state
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 #include    "CVtEngStateIdle.h"
       
    21 #include    <cvtlogger.h>
       
    22 
       
    23 
       
    24 // ============================ MEMBER FUNCTIONS ===============================
       
    25 
       
    26 // -----------------------------------------------------------------------------
       
    27 // CVtEngStateIdle::CVtEngStateIdle
       
    28 // C++ constructor can NOT contain any code, that
       
    29 // might leave.
       
    30 // -----------------------------------------------------------------------------
       
    31 //
       
    32 CVtEngStateIdle::CVtEngStateIdle( 
       
    33     CVtEngStateManager& aStateManager,
       
    34     CVtEngEventManager& aEventManager )
       
    35     : CVtEngStateBase( aStateManager, aEventManager )
       
    36     {
       
    37     }
       
    38 
       
    39 // Destructor
       
    40 CVtEngStateIdle::~CVtEngStateIdle()
       
    41     {
       
    42     __VTPRINT( DEBUG_DESTRUCT, "~Stateidl")
       
    43     }
       
    44 
       
    45 
       
    46 // -----------------------------------------------------------------------------
       
    47 // CVtEngStateIdle::UpdateL
       
    48 // Updates state
       
    49 // (other items were commented in a header).
       
    50 // -----------------------------------------------------------------------------
       
    51 //
       
    52 void CVtEngStateIdle::UpdateL()
       
    53     {
       
    54     __VTPRINTENTER( "StateIdle.Update")
       
    55    
       
    56     const MVtCtlCallControl::TVtCtlState state = SessionHandler().RealState();
       
    57     CVtEngStateBase* newState = NULL;
       
    58     
       
    59     if( iStateManager.PreviousSessionState() == MVtEngSessionInfo::EUnknown )
       
    60         {
       
    61         switch ( state )
       
    62             {
       
    63             case MVtCtlCallControl::EInitializing:
       
    64                 newState = NewStateL( MVtEngSessionInfo::EInitializing );
       
    65                 break;
       
    66             case MVtCtlCallControl::EAlerting:
       
    67                 newState = NewStateL( MVtEngSessionInfo::ERemoteAlerting );
       
    68                 break;
       
    69             case MVtCtlCallControl::ERinging:
       
    70                 newState = NewStateL( MVtEngSessionInfo::EReceiving );
       
    71                 break;
       
    72             case MVtCtlCallControl::EConnected:
       
    73                 newState = NegotiatingOrConnectedStateL();
       
    74                 break;
       
    75             default:
       
    76                 break;
       
    77             }
       
    78         if ( newState )
       
    79             {
       
    80             CVtEngUtility* utils = CVtEngUtility::EngineUtils();
       
    81             
       
    82             // Notify UI about initial autolock state. UI must have this
       
    83             // information early enough to deduce if it is allowed to 
       
    84             // go to foreground.
       
    85             utils->NotifyLockState();            
       
    86             utils->StartSATListenL();
       
    87             newState->OpenL( this );
       
    88             }
       
    89         }
       
    90     else
       
    91         {
       
    92         __VTPRINT( DEBUG_GEN, "StateIdle.Update wrong previous state, ignoring")        
       
    93         }
       
    94     __VTPRINTEXIT( "StateIdle.Update")
       
    95     }
       
    96 
       
    97 // -----------------------------------------------------------------------------
       
    98 // CVtEngStateIdle::OpenL
       
    99 // State transition to idle.
       
   100 // (other items were commented in a header).
       
   101 // -----------------------------------------------------------------------------
       
   102 //
       
   103 void CVtEngStateIdle::DoOpenL()
       
   104     {
       
   105     __VTPRINTENTER( "StateIdle.Open")
       
   106     // Reset settings
       
   107     CVtEngSettings& settings = CVtEngUtility::Settings();
       
   108     settings.ResetAll();
       
   109     
       
   110     NotifyStateChange( MVtEngSessionInfo::EIdle );
       
   111     __VTPRINTEXIT( "StateIdle.Open")
       
   112     }
       
   113 
       
   114 // -----------------------------------------------------------------------------
       
   115 // CVtEngStateIdle::ValidateCommand
       
   116 // Returns if a command is valid in idle state.
       
   117 // 
       
   118 // -----------------------------------------------------------------------------
       
   119 //
       
   120 TBool CVtEngStateIdle::ValidateCommand(
       
   121             const TVtEngCommandId aCommandId )
       
   122     {
       
   123     __VTPRINT( DEBUG_DETAIL | DEBUG_GEN, "StateIdle.Validate")
       
   124     TBool okToPerform( EFalse );
       
   125     switch ( aCommandId )
       
   126         {
       
   127         case KVtEngPrepareViewFinder:        
       
   128         case KVtEngPrepareRemoteRenderDSA:
       
   129         case KVtEngPrepareRemoteRenderDP:
       
   130         case KVtEngPrepareRemoteRender:
       
   131         case KVtEngPrepareRemoteRenderNGA:
       
   132             okToPerform = ETrue;
       
   133             break;
       
   134         default:
       
   135             okToPerform = CVtEngStateBase::ValidateCommand( aCommandId );
       
   136             break;
       
   137         }
       
   138     return okToPerform;
       
   139     }
       
   140 
       
   141 // -----------------------------------------------------------------------------
       
   142 // CVtEngStateIdle::State
       
   143 // Returns session state.
       
   144 // 
       
   145 // -----------------------------------------------------------------------------
       
   146 //
       
   147 MVtEngSessionInfo::TSessionState CVtEngStateIdle::State() const
       
   148     {
       
   149     return MVtEngSessionInfo::EIdle;
       
   150     }
       
   151 
       
   152 
       
   153 // End of File