TB10.1 Example Applications: examples/AppFramework/ssmanager/policies/sysstates/dummy_backup

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: A dummy backup state policy is provided to demonstrate the system state
+00015 // manager framework.
+00016 //
+00017 
+00018 #ifndef _DUMMY_BACKUP_STATEPOLICY_H__
+00019 #define _DUMMY_BACKUP_STATEPOLICY_H__
+00020 
+00021 #include <e32base.h>
+00022 #include <f32file.h>
+00023 
+00024 #include <ssm/ssmstatepolicy.h>
+00025 #include <ssm/ssmstate.h>
+00026 #include <ssm/ssmconditionalcallback.h>
+00027 #include <ssm/ssmstatetransition.h>
+00028 
+00029 // Forward declaration
+00030 class CSsmCommandListResourceReader;
+00031 
+00038 NONSHARABLE_CLASS(CSsmDummyBackUpStatePolicy) : public CBase, public MSsmStatePolicy, public MSsmConditionalCallback
+00039         {
+00040 public:
+00041         IMPORT_C static MSsmStatePolicy* NewL();
+00042         
+00043         //from MSsmStatePolicy
+00044         void Initialize(TRequestStatus& aStatus);
+00045         void InitializeCancel();
+00046         void Release();
+00047         TResponse TransitionAllowed(const TSsmStateTransition& aRequest, TSsmStateTransition const* aCurrent, TSsmStateTransition const* aQueued, const RMessagePtr2& aMessage);
+00048         void PrepareCommandList(TSsmState aState, TInt aReason, TRequestStatus& aStatus);
+00049         void PrepareCommandListCancel();
+00050         CSsmCommandList* CommandList();
+00051         TBool GetNextState(TSsmState aCurrentTransition, TInt aReason, TInt aError, TInt aSeverity, TSsmState& aNextState);
+00052         
+00053         //from MSsmConditionalCallback
+00054         TBool ConditionalCommandAllowedL(CResourceFile& aResourceFile, TInt aResourceId);
+00055         
+00056 private:
+00057         void ConstructL();
+00058         //from CBase
+00059         CSsmDummyBackUpStatePolicy();
+00060         ~CSsmDummyBackUpStatePolicy();
+00061         TBool TransitionSupported(const TSsmState& aRequestedState) const;
+00062 private:
+00063         RFs iFs;
+00064         CSsmCommandListResourceReader* iCommandListResourceReader;
+00065         RArray<TSsmState> iCurrentlySupportedTransitions;
+00066         enum TBackupPanicCodes
+00067                 {
+00068                 EInvalidResourceReader // Panic code used when the command list resource reader is NULL
+00069                 };
+00070         };
+00071 
+00072 #endif  //_DUMMY_BACKUP_STATEPOLICY_H__
+
examples/AppFramework/ssmanager/policies/sysstates/dummy_backup_statepolicy.h
