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examples/AppFramework/ssmanager/policies/sysstates/dummy_restore_statepolicy.cpp

//
// Copyright (c) 2009 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: A dummy restore state policy is provided with the system state manager
// example code which demonstrates the various utilities of SSM framework.
//

#include <ssm/ssmcommandlist.h>
#include <ssm/ssmpublishsystemstateinfo.h>
#include <ssm/ssmcommandfactory.h>
#include <ssm/ssmstartupproperties.h>
#include "dummy_restore_statepolicy.h"


EXPORT_C MSsmStatePolicy* CSsmDummyRestoreStatePolicy::NewL()
        {
        CSsmDummyRestoreStatePolicy* self = new (ELeave) CSsmDummyRestoreStatePolicy;
        CleanupStack::PushL(self);
        CleanupStack::Pop(self);
        return self;
        }
 
CSsmDummyRestoreStatePolicy::CSsmDummyRestoreStatePolicy()
        {
        }

CSsmDummyRestoreStatePolicy::~CSsmDummyRestoreStatePolicy()
        {
        delete iCommandList;
        }

void CSsmDummyRestoreStatePolicy::Initialize(TRequestStatus& aStatus)
        {
        TRequestStatus* rs = &aStatus;
        User::RequestComplete(rs, KErrNone);
        }

void CSsmDummyRestoreStatePolicy::InitializeCancel()
        {
        }

void CSsmDummyRestoreStatePolicy::Release()
        {
        delete this;
        }

MSsmStatePolicy::TResponse CSsmDummyRestoreStatePolicy::TransitionAllowed(const TSsmStateTransition& /*aRequest*/, TSsmStateTransition const* /*aCurrent*/, TSsmStateTransition const* /*aQueued*/, const RMessagePtr2& /*aMessage*/)
        {
        return EDefinitelyAllowed;
        }

void CSsmDummyRestoreStatePolicy::PrepareCommandList(TSsmState aState, TInt /*aReason*/, TRequestStatus& aStatus)
        {       
        TRAPD(err, doPrepareCommandListL(aState));
        TRequestStatus* rs = &aStatus;
        User::RequestComplete(rs, err);
        } 

void CSsmDummyRestoreStatePolicy::doPrepareCommandListL(TSsmState aState)
        {
        // Reset the command list
        delete iCommandList;
        iCommandList = NULL;
        iCommandList = CSsmCommandList::NewL();
        _LIT(KProcessName, "dummybackup.exe");
        _LIT(KNullDesc, "");
        // Start a process from your command list.
        CSsmStartupProperties* startupProperties = CSsmStartupProperties::NewL(KProcessName,KNullDesc);
        CleanupStack::PushL(startupProperties);
        TSsmPublishSystemStateInfo info;
        TInt16 retries =0;//Number of retries for this System State is given as '0'
        info.Set(aState, ETraverseParentsFirst, retries); 
        // Create a command to publish Restore System State.
        MSsmCommand* cmd1 = SsmCommandFactory::ConstructPublishSystemStateCommandLC(ECmdCriticalSeverity, ESsmWaitForSignal, info);
        // Construct a command which will start a process
        MSsmCommand* cmd2 = SsmCommandFactory::ConstructStartProcessCommandLC(ECmdCriticalSeverity,startupProperties);
        iCommandList->AppendL(cmd1);
        iCommandList->AppendL(cmd2);
        CleanupStack::Pop(2); // Pops the above cmd1 and cmd2 from the stack.
        CleanupStack::PopAndDestroy(startupProperties); 
        }

void CSsmDummyRestoreStatePolicy::PrepareCommandListCancel()
        {
        delete iCommandList;
        iCommandList = NULL;
        }

CSsmCommandList* CSsmDummyRestoreStatePolicy::CommandList()
        {
        CSsmCommandList* list = iCommandList;
        iCommandList = NULL;
        return list;
        }

TBool CSsmDummyRestoreStatePolicy::GetNextState(TSsmState /*aCurrentTransition*/, TInt /*aReason*/, TInt /*aError*/, TInt /*aSeverity*/, TSsmState& /*aNextState*/)
        {
        return EFalse;
        } 

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Copyright ©2010 Nokia Corporation and/or its subsidiary(-ies).
All rights reserved. Unless otherwise stated, these materials are provided under the terms of the Eclipse Public License v1.0.