vtengines/videoteleng/Src/State/CVtEngStateNegotiating.cpp
changeset 0 ed9695c8bcbe
child 39 7510ce99d5ea
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtengines/videoteleng/Src/State/CVtEngStateNegotiating.cpp	Mon Nov 23 14:47:47 2009 +0200
@@ -0,0 +1,167 @@
+/*
+* Copyright (c) 2004-2006 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Negotiating state
+*
+*/
+
+
+// INCLUDE FILES
+#include    "CVtEngStateNegotiating.h"
+#include    <cvtlogger.h>
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CVtEngStateNegotiating::CVtEngStateNegotiating
+// C++ constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CVtEngStateNegotiating::CVtEngStateNegotiating( 
+    CVtEngStateManager& aStateManager,
+    CVtEngEventManager& aEventManager )
+    : CVtEngStateBase( aStateManager, aEventManager )
+    {
+    }
+
+// Destructor
+CVtEngStateNegotiating::~CVtEngStateNegotiating()
+    {
+    __VTPRINT( DEBUG_DESTRUCT, "~Stateneg")
+    }
+
+
+// -----------------------------------------------------------------------------
+// CVtEngStateNegotiating::UpdateL
+// Updates state
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CVtEngStateNegotiating::UpdateL()
+    {
+    __VTPRINTENTER( "StateNegotiate.Update" )
+    const MVtCtlCallControl::TVtCtlState bearerstate = 
+        SessionHandler().RealState();
+    const MVtProtocolCommand::TVtProtocolState state( MediaHandler().ProtoState() );
+    CVtEngStateBase* newState = NULL;
+
+    if ( bearerstate != MVtCtlCallControl::EConnected ||
+         state == MVtProtocolCommand::ESetup ) // <- connect failed
+        {
+        newState = NewStateL( MVtEngSessionInfo::EClearing );
+        }
+    else if ( state == MVtProtocolCommand::EConnected )
+        {
+        // change to open state
+        newState = NewStateL( MVtEngSessionInfo::EOpen );
+        }
+    else if ( state == MVtProtocolCommand::ESetup )
+        {
+        // should not usually happen unless connect fails
+        newState = NewStateL( MVtEngSessionInfo::EConnected );
+        }
+    if ( newState )
+        {
+        newState->OpenL( this );
+        }
+    __VTPRINTEXIT( "StateNegotiate.Update" )
+    }
+
+// -----------------------------------------------------------------------------
+// CVtEngStateNegotiating::OpenL
+// State transition to negotiating.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CVtEngStateNegotiating::DoOpenL( )
+    {
+    __VTPRINTENTER( "StateNegotiate.Open" )
+    NotifyStateChange( MVtEngSessionInfo::ENegotiating);
+    __VTPRINTEXIT( "StateNegotiate.Open" )
+    }
+
+// -----------------------------------------------------------------------------
+// CVtEngStateNegotiating::ValidateCommand
+// Returns if a command is valid in negotiating state.
+// 
+// -----------------------------------------------------------------------------
+//
+TBool CVtEngStateNegotiating::ValidateCommand(
+    const TVtEngCommandId aCommandId )
+    {
+    __VTPRINT( DEBUG_DETAIL | DEBUG_GEN, "StateNegotiate.Validate")
+    TBool okToPerform( EFalse );
+    switch ( aCommandId )
+        {
+        case KVtEngPrepareViewFinder:        
+        case KVtEngPrepareRemoteRenderDSA:
+        case KVtEngPrepareRemoteRenderDP:
+        case KVtEngPrepareRemoteRender:
+        case KVtEngPrepareRemoteRenderNGA:
+        case KVtEngStartRenderRemote: // cached to settings
+        case KVtEngSetSource:
+        case KVtEngPrepareCamera:
+        case KVtEngSetZoomStep:
+        case KVtEngStartViewFinder:
+        case KVtEngStopViewFinder:
+        case KVtEngTerminateSession:
+            okToPerform = ETrue;
+            break;
+        default:
+            okToPerform = CVtEngStateBase::ValidateCommand( aCommandId );
+            break;
+        }
+    return okToPerform;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtEngStateNegotiating::State
+// Returns session state.
+// 
+// -----------------------------------------------------------------------------
+//
+MVtEngSessionInfo::TSessionState CVtEngStateNegotiating::State() const
+    {
+    return MVtEngSessionInfo::ENegotiating;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtEngStateNegotiating::HandleL
+// Handles an operation when behavior is state dependent.
+// 
+// -----------------------------------------------------------------------------
+//
+TBool CVtEngStateNegotiating::HandleL( CVtEngOperation& aOp )
+    {
+    __VTPRINTENTER( "StateNegotiate.HandleL" )
+    TBool handled( CVtEngStateBase::HandleL( aOp ) );
+    if ( !handled )
+        {
+        switch ( aOp.Command() )
+            {
+            case KVtEngStartRenderRemote:
+                SetVideoEnabled( ETrue );
+                handled = ETrue;
+                break;
+            case KVtEngTerminateSession:
+                TerminateSessionL( aOp );
+                break;
+            }
+        }
+    __VTPRINTEXITR( "StateNegotiate.HandleL %d", handled )
+    return handled;
+    }
+
+// End of File