/*
* Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "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:
* SWIS uninstall state machine
*
*/
/**
@file
@internalComponent
*/
#ifndef __SWIS_UNINSTALLMACHINE_H__
#define __SWIS_UNINSTALLMACHINE_H__
#include "statemachine.h"
namespace Swi
{
class CUninstallationProcessor;
class CUninstallationPlanner;
class CSisRegistryPackage;
class CPlan;
/**
* State machine implementation for uninstallation. Handles interactions
* between UISS, Installation Planner, and Integrity Support.
*
* @internalComponent
* @released
*/
class CUninstallMachine : public CSwisStateMachine
{
public:
/**
* Base class for all other uninstall states. Keeps a reference to the
* state machine object.
*
* @internalComponent
* @released
*/
class TUninstallState : public CSwisStateMachine::TState
{
public:
TUninstallState(CUninstallMachine& aUninstallMachine);
protected:
CUninstallMachine& iUninstallMachine;
};
/**
* This state calls the uninstall dialog to confirm uninstallation with
* the user.
*/
class TConfirmationState : public TUninstallState
{
public:
TConfirmationState(CUninstallMachine& aUninstallMachine);
virtual void EnterL();
virtual TState* CompleteL();
virtual TState* ErrorL(TInt aCode);
virtual void Cancel();
};
/**
* This state calls the planner to plan the uninstallation.
*/
class TPlanUninstallationState : public TUninstallState
{
public:
TPlanUninstallationState(CUninstallMachine& aUninstallMachine);
virtual void EnterL();
virtual TState* CompleteL();
virtual TState* ErrorL(TInt aCode);
virtual void Cancel();
};
/**
* This state communicates with Integrity Support to carry out the plan.
*
* @internalComponent
* @released
*/
class TIntegritySupportState : public TUninstallState
{
public:
TIntegritySupportState(CUninstallMachine& aUninstallMachine);
virtual void EnterL();
virtual TState* CompleteL();
virtual TState* ErrorL(TInt aCode);
virtual void Cancel();
};
/**
* This is the final state that is entered when uninstallation finishes.
*
* @internalComponent
* @released
*/
class TFinalState : public TUninstallState
{
public:
TFinalState(CUninstallMachine& aUninstallMachine);
virtual void EnterL();
virtual TState* CompleteL();
virtual TState* ErrorL(TInt aCode);
virtual void Cancel();
};
/**
* This state registers to the SWI Observer and obtains the log file handle.
*/
class TRegistrationState : public TUninstallState
{
public:
TRegistrationState(CUninstallMachine& aUninstallMachine);
virtual void EnterL();
virtual TState* CompleteL();
virtual TState* ErrorL(TInt aCode);
virtual void Cancel();
};
// The friend declarations are needed to access state machine's members
// from the states.
friend class TRegistrationState;
friend class TConfirmationState;
friend class TPlanUninstallationState;
friend class TIntegritySupportState;
friend class TFinalState;
CUninstallMachine(const RMessage2& aMessage);
void ConstructL();
public:
static CUninstallMachine* NewL(const RMessage2& aMessage);
virtual ~CUninstallMachine();
virtual TInt Start();
protected:
virtual TState* FirstState();
virtual TState* ErrorOnStateEntryL(TInt aError);
virtual void SignalCompletedL();
private:
// States
TRegistrationState iRegistrationState;
TConfirmationState iConfirmationState;
TPlanUninstallationState iPlanUninstallationState;
TIntegritySupportState iIntegritySupportState;
TFinalState iFinalState;
// The rest
CUninstallationPlanner* iPlanner;
CSisRegistryPackage *iPackage; // the package to uninstall
CPlan* iPlan; ///< Created by planner
CInstallationResult* iResult;
CUninstallationProcessor* iProcessor; ///< removes/unregisters etc.
}; // class CUninstallMachine
} // namespace Swi
#endif