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examples/AppFramework/ssmanager/policies/swp/dummy_diskstatus_swppolicy.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 disk status system wide property is provided to demonstrate
// the System State Manager framework.
//

#include <ssm/ssmswppolicy.h>
#include <ssm/ssmcommandlist.h>
#include <ssm/ssmcommandlistresourcereader.h>
#include "dummy_diskstatus_swppolicy.h"
#include "dummy_diskstatus_swppolicy.hrh"

_LIT(KCommandListPath, "z:\\private\\2000d75b\\ssmaeg\\swp_dummy_diskstatus\\");

_LIT(KExamplePolicyPanic,"DummyDiskStatus");

EXPORT_C MSsmSwpPolicy* CSsmDummyDiskStatusSwpPolicy::NewL()
        {
        CSsmDummyDiskStatusSwpPolicy* self = new (ELeave) CSsmDummyDiskStatusSwpPolicy;
        CleanupStack::PushL(self);
        self->ConstructL();
        CleanupStack::Pop(self);
        return self;
        }

CSsmDummyDiskStatusSwpPolicy::CSsmDummyDiskStatusSwpPolicy()
        {
        }

CSsmDummyDiskStatusSwpPolicy::~CSsmDummyDiskStatusSwpPolicy()
        {
        iFs.Close();
        delete iCommandListResourceReader;
        }

void CSsmDummyDiskStatusSwpPolicy::ConstructL()
        {
        User::LeaveIfError(iFs.Connect());
        // create resource reader
        iCommandListResourceReader = CSsmCommandListResourceReader::NewL(iFs, KCommandListPath(), *this);
        }

void CSsmDummyDiskStatusSwpPolicy::Initialize(TRequestStatus& aStatus)
        {
        __ASSERT_ALWAYS(iCommandListResourceReader, User::Panic(KExamplePolicyPanic, EInvalidResourceReader));
        // initialise command list resource reader.
        iCommandListResourceReader->Initialise(aStatus);
        }

void CSsmDummyDiskStatusSwpPolicy::InitializeCancel()
        {
        __ASSERT_ALWAYS(iCommandListResourceReader, User::Panic(KExamplePolicyPanic, EInvalidResourceReader));
        iCommandListResourceReader->InitialiseCancel();
        }

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

MSsmSwpPolicy::TResponse CSsmDummyDiskStatusSwpPolicy::TransitionAllowed(const TSsmSwp& /*aSwp*/, const RMessagePtr2& /*aMessage*/)
        {
        TResponse response = EAllowed;
        return response;
        }

void CSsmDummyDiskStatusSwpPolicy::PrepareCommandList(const TSsmSwp& aSwp, TRequestStatus& aStatus)
        {
        __ASSERT_ALWAYS(iCommandListResourceReader, User::Panic(KExamplePolicyPanic, EInvalidResourceReader));
        // Build the command list for this value from a resource 
        iCommandListResourceReader->PrepareCommandList(aSwp.Value(), aSwp, aStatus);
        }

void CSsmDummyDiskStatusSwpPolicy::PrepareCommandListCancel()
        {
        __ASSERT_ALWAYS(iCommandListResourceReader, User::Panic(KExamplePolicyPanic, EInvalidResourceReader));
        iCommandListResourceReader->PrepareCommandListCancel();
        }

CSsmCommandList* CSsmDummyDiskStatusSwpPolicy::CommandList()
        {       
        __ASSERT_ALWAYS(iCommandListResourceReader, User::Panic(KExamplePolicyPanic, EInvalidResourceReader));
        return iCommandListResourceReader->GetCommandList();
        }

void CSsmDummyDiskStatusSwpPolicy::HandleCleReturnValue(const TSsmSwp& /*aSwp*/, TInt /*aError*/, TInt /*aSeverity*/, TRequestStatus& aStatus)
        {
        /*
        This function is going to handle the return value. Even an reported error is treated as 
        a successful API request. The request always needs to be completed with KErrNone.
        */
        TRequestStatus* rs = &aStatus;
        User::RequestComplete(rs, KErrNone);
        }

void CSsmDummyDiskStatusSwpPolicy::HandleCleReturnValueCancel()
        {
        // Nothing to do as HandleCleReturnValue always completes immediately
        }

TBool CSsmDummyDiskStatusSwpPolicy::ConditionalCommandAllowedL(CResourceFile& /*aResourceFile*/, TInt /*aResourceId*/)
        {
        return EFalse; // command list does not contain commands that have conditions, so 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.