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examples/AppFramework/ssmanager/policies/sysstates/gsastatepolicynormal.h

00001 //
00002 // Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
00003 // All rights reserved.
00004 // This component and the accompanying materials are made available
00005 // under the terms of "Eclipse Public License v1.0"
00006 // which accompanies this distribution, and is available
00007 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
00008 //
00009 // Initial Contributors:
00010 // Nokia Corporation - initial contribution.
00011 //
00012 // Contributors:
00013 //
00014 // Description: 
00015 // Extends the GSA (Generic Startup Architecture) normal policy to  
00016 // to support the dummy backup and restore states added as part of this example. 
00017 // The example uses this extended normal state, which replaces the existing normal policy.
00018 
00019 #ifndef __GSASTATEPOLICYNORMAL_H__
00020 #define __GSASTATEPOLICYNORMAL_H__
00021 
00022 #include <e32base.h>
00023 #include <ssm/ssmstatepolicy.h>
00024 #include <ssm/ssmconditionalcallback.h>
00025 
00026 class CSsmCommandListResourceReader;
00027 
00036 NONSHARABLE_CLASS(CEgGsaStatePolicyNormal) : public CBase, public MSsmStatePolicy, public MSsmConditionalCallback
00037         {
00038 public:
00039         IMPORT_C static MSsmStatePolicy* NewL();
00040 
00041         //from MSsmStatePolicy
00042         TResponse TransitionAllowed(const TSsmStateTransition& aRequest, TSsmStateTransition const* aCurrent, TSsmStateTransition const* aQueued, 
00043                                                                 const RMessagePtr2& aMessage);
00044         void Initialize(TRequestStatus& aStatus);
00045         void InitializeCancel();
00046         void PrepareCommandList(TSsmState aState, TInt aReason, TRequestStatus& aStatus);
00047         void PrepareCommandListCancel();
00048         CSsmCommandList* CommandList();
00049         TBool GetNextState(TSsmState aCurrentTransition, TInt aReason, TInt aError, TInt aSeverity, TSsmState& aNextState);
00050         void Release();
00051 
00052         // from MSsmConditionalCallback
00053         TBool ConditionalCommandAllowedL(CResourceFile& aResourceFile, TInt aResourceId);
00054         
00055 private:
00056         ~CEgGsaStatePolicyNormal();
00057         CEgGsaStatePolicyNormal();
00058 
00059         void ConstructL();
00060         TBool TransitionSupported(const TSsmState& aRequestedState) const;
00061 
00062 private:
00063         RArray<TSsmState> iCurrentlySupportedTransitions;       
00064         CSsmCommandListResourceReader* iCommandListResourceReader;
00065         RFs iFs;
00066 
00067         // Possible panic codes within Normal policy
00068         enum TNormalPanicCodes
00069                 {
00073                 EInvalidResourceReader = 1,
00077                 EInvalidNormalState,
00081                 EConditionalInfoNotImplemented
00082                 };
00083         };
00084 
00085 #endif  // __GSASTATEPOLICYNORMAL_H__
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