--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtuis/videotelui/inc/tvtuiappstates.h	Wed Sep 01 12:29:12 2010 +0100
@@ -0,0 +1,274 @@
+/*
+* Copyright (c) 2007 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:  Concrete application state classes
+*
+*/
+
+
+#ifndef T_VTUIAPPSTATES_H
+#define T_VTUIAPPSTATES_H
+
+#include "tvtuiappstatebase.h"
+#include <babitflags.h>
+#include <vtengcommands.h>
+
+class CAknQueryDialog;
+
+/**
+*  Initial application state. Responsible for startup phase 1 and
+*  startup phase 2 (see EVtUiAppUiStartup in CVtUiAppUi.cpp).
+*  Certain other state changes are required for phase 2 and history
+*  of their reception is handled with precondition flags.
+*
+*  @since S60 v3.2
+*/
+class TVtUiStateStarting : public TVtUiAppStateBase
+    {
+public:
+    /**
+    * returns singleton instance of TVtUiStateStarting
+    * @param aCtx state context
+    * @param aUiStates UI states
+    * @return singleton
+    */
+    static TVtUiStateStarting* InstanceL(
+        MVtUiStateContext& aCtx,
+        TVtUiStates& aUiStates );
+
+public: // from TVtUiAppStateBase
+
+    /** @see TVtUiAppStateBase */
+    virtual void AppUiStartupPhase1DoneL();
+
+    /** @see TVtUiAppStateBase */
+    virtual void AppUiStartupPhase2DoneL();
+
+    /** @see TVtUiAppStateBase */
+    virtual TEventResponse HandleVtEventL( TInt aEvent );
+
+    /** @see TVtUiAppStateBase */
+    virtual TEventResponse HandleCommandL( const TInt aCommand );
+
+    /** @see TVtUiAppStateBase */
+    virtual TBool HandleForegroundChangedL( TBool aIsForeground );
+
+private: // from TVtUiAppStateBase
+
+    /** @see TVtUiAppStateBase */
+    virtual void OpenL();
+
+    /** @see TVtUiAppStateBase */
+    virtual void Close();
+
+private: // new methods
+
+    void CheckSessionStateL();
+    static TInt AsynchOpen( TAny* aAny );
+    
+    void DoOpenL();
+    
+    /** Preconditions that must be passed in order to proceed
+     * to Phase 2 in startup.
+     */
+    enum TPreconditions
+        {
+        /** waiting for CLI from engine*/
+        EWaitingCLI,
+        /** waiting for phase1 to complete */
+        EWaitingPhase1ToComplete,
+        /** waiting for engine to get proper state */
+        EWaitingSessionState
+    };
+
+    /**
+    * Clears precondition passed as argument and checks if any
+    * preconditions hold and if not proceeds to phase 2 of startup.
+    */
+    void CheckPhase2StartupL( const TPreconditions aClearCondition );
+    
+    void HandleCLIReceivedL();
+
+private: // constructors and destructors
+
+    // c++ constructor
+    TVtUiStateStarting(
+        MVtUiStateContext& aCtx,
+        TVtUiStates& aUiStates );
+
+    // Destructor
+    virtual ~TVtUiStateStarting();
+
+private: // data members
+
+    // Precondition for state change to running
+    TBitFlags8 iPreconditions;
+
+    // Singleton
+    static TVtUiStateStarting* iInstance;
+    
+    // Starts phase1 startup in state state context. Needed because
+    // initial state is opened from within state context construction.
+    CAsyncCallBack*     iStartCallback;
+    };
+
+/**
+*  Application state that is active in normal operation.
+*
+*  @since S60 v3.2
+*/
+class TVtUiStateRunning : public TVtUiAppStateBase
+    {
+public:
+    /**
+    * returns singleton instance of TVtUiStateRunning
+    * @param aCtx state context
+    * @param aUiStates UI states
+    * @return singleton
+    */
+    static TVtUiStateRunning* InstanceL(
+        MVtUiStateContext& aCtx,
+        TVtUiStates& aUiStates );
+
+public: // from TVtUiAppStateBase
+
+    /** @see TVtUiAppStateBase */
+    virtual TEventResponse HandleVtEventL( TInt aEvent );
+
+    /** @see TVtUiAppStateBase */
+    virtual TEventResponse HandleCommandL( const TInt aCommand );
+
+    /** @see TVtUiAppStateBase */
+    virtual TBool HandleForegroundChangedL( TBool aIsForeground );
+
+    /** @see TVtUiAppStateBase */
+    virtual TBool PreHandleForegroundChangedL( TBool aIsForeground );
+    /** @see TVtUiAppStateBase */
+    virtual void HandleLayoutChangedL();
+
+    /** @see TVtUiAppStateBase */
+    virtual void StartDtmfTone( const TChar& aTone );
+
+    /** @see TVtUiAppStateBase */
+    virtual void StopDtmfTone();
+
+    /** @see TVtUiAppStateBase */
+    virtual void OpenL();
+
+private: // from TVtUiAppStateBase
+    /** @see TVtUiAppStateBase */
+    virtual void Close();
+
+private: // constructors and destructors
+
+    // c++ constructor
+    TVtUiStateRunning(
+        MVtUiStateContext& aCtx,
+        TVtUiStates& aUiStates );
+
+    // Destructor
+    virtual ~TVtUiStateRunning();
+
+private: // new functions
+
+    /** Requests call handling subsystem to initiate a voice call.
+     * Starts shutdown of the application.
+     */
+    void CreateVoiceCallL();
+
+    /** Dials emergency call and starts shutdown */
+    void DialEmergencyCallL();
+    
+    void ShutdownWithEngineCommandL( const TInt aCommand );
+
+private: // data members
+    // singleton
+    static TVtUiStateRunning* iInstance;
+    // Create voice call query instance
+    CAknQueryDialog* iCreateVoiceCallDlg;
+    };
+
+/**
+*  Application state that is active during shutdown.
+*
+*  @since S60 v3.2
+*/
+class TVtUiStateResetting : public TVtUiAppStateBase
+    {
+public:
+    /**
+    * returns singleton instance of TVtUiStateResetting
+    * @param aCtx state context
+    * @param aUiStates UI states
+    * @param aCommand engine command to send when resetting state activates
+    * @return singleton
+    */
+    static TVtUiStateResetting* InstanceL(
+        MVtUiStateContext& aCtx,
+        TVtUiStates& aUiStates,
+        const TVtEngCommandId aCommand = KVtEngCommandNone );
+
+public: // from TVtUiAppStateBase
+
+    /** @see TVtUiAppStateBase */
+    virtual void AppUiStartupFailedL();
+
+    /** @see TVtUiAppStateBase */
+    virtual void ShutdownDoneL();
+
+    /** @see TVtUiAppStateBase */
+    virtual TEventResponse HandleVTCommandPerformedL(
+        TVtEngCommandId aCommand,
+        const TInt aError );
+
+    /** @see TVtUiAppStateBase */
+    virtual TEventResponse HandleVtEventL( TInt aEvent );
+
+    /** @see TVtUiAppStateBase */
+    virtual TEventResponse HandleCommandL( const TInt aCommand );
+
+    /** @see TVtUiAppStateBase */
+    virtual TBool HandleForegroundChangedL( TBool aIsForeground );
+
+    /** @see TVtUiAppStateBase */
+    virtual void HandleLayoutChangedL();
+
+private: // from TVtUiAppStateBase
+
+    /** @see TVtUiAppStateBase */
+    virtual void OpenL();
+
+    /** @see TVtUiAppStateBase */
+    virtual void Close();
+
+private: // constructors and destructors
+
+    // c++ constructor
+    TVtUiStateResetting(
+        MVtUiStateContext& aCtx,
+        TVtUiStates& aUiStates,
+        const TVtEngCommandId aCommand = KVtEngCommandNone );
+
+    // Destructor
+    virtual ~TVtUiStateResetting();
+
+private: // data members
+
+    // Singleton
+    static TVtUiStateResetting* iInstance;
+    
+    // Used in user originated shutdown (end active call/switch to voice)
+    TVtEngCommandId iCommand;
+    };
+
+#endif // T_VTUIAPPSTATES_H