examples/Base/FeatMngrExample/src/FeatMngrExample.cpp

/*
Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this
  list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
  this list of conditions and the following disclaimer in the documentation
  and/or other materials provided with the distribution.
* Neither the name of Nokia Corporation nor the names of its contributors
  may be used to endorse or promote products derived from this software
  without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Description:  
*/


#include "FeatMngrExample.h"
#include <e32base.h>
#include <e32std.h>
#include <e32def.h>
#include <e32cmn.h>

//String literals
_LIT(KNewline, "\n");

CFeatMngrExample* CFeatMngrExample::NewL(TInt aPriority)
        {
        CFeatMngrExample* self=new(ELeave)CFeatMngrExample(aPriority);
        CleanupStack::PushL(self);
        self->ConstructL();
        CleanupStack::Pop(self);
        return self;
        }

void CFeatMngrExample::ConstructL()
        {
        //Create console
        _LIT(KTextConsoleTitle, "FeatureManager");
        iConsole = Console::NewL(KTextConsoleTitle, TSize(KConsFullScreen,KConsFullScreen));
        _LIT(KWelcome, "Welcome to the Feature Management Example\n");
        iConsole->Printf(KWelcome);
        
        //Create another process to receive notification. 
        _LIT(KProcessName, "FeatureChecker.exe");
        User::LeaveIfError(iProcess.Create(KProcessName, KNullDesC));
        iProcess.Resume();
        
        User::LeaveIfError(iFeatControl.Open());
        }

CFeatMngrExample::CFeatMngrExample(TInt aPriority):CActive( aPriority )
        {       
        CActiveScheduler::Add(this);
        }

CFeatMngrExample::~CFeatMngrExample()
        {
        Cancel();
        delete iConsole;
        iFeatControl.Close();
        iProcess.Close();
        }

void CFeatMngrExample::RunL()
        {
        TRAPD(err,ProcessKeyPressL(TChar(iConsole->KeyCode())));
        if(err != KErrNone)
                {
                iConsole->Printf(_L("Failed. Error: %d\r\n"),err);
                RequestCharacter();
                }       
        }

void CFeatMngrExample::ProcessKeyPressL(TChar aChar)
    {
        switch(aChar)
                {
                case '1':
                        {
                        ListFeaturesL();
                        break;
                        }
                case '2':
                        {
                        AddL();
                        break;
                        }
                case '3':
                        {
                        UpdateL();
                        break;
                        }
                case '4':
                        {
                        EnableFeatureL();
                        break;
                        }
                case '5':
                        {
                        DeleteL();
                        break;
                        }
                case '6':
                        {
                        CheckFeatureSupportL();
                        break;
                        }
                default:
                        CActiveScheduler::Stop();
                        break;
                }
    }

void CFeatMngrExample::AddL()
        {
        _LIT(KFeat, "Enter the UID of the feature to be added.\n");
        _LIT(KSelectUIDL1, "Select any UID, but in order to receive notification from featurechecker.exe,\n");
        _LIT(KSelectUIDL2,"choose a UID from the range 12000000 to 1200001A.\n");
        _LIT(KSelectUIDL3, "Notification takes the form of an info message displayed at the top right\n");
        _LIT(KSelectUIDL4, "corner of the screen.\n");
        iConsole->Printf(KFeat);
        iConsole->Printf(KSelectUIDL1);
        iConsole->Printf(KSelectUIDL2);
        iConsole->Printf(KSelectUIDL3);
        iConsole->Printf(KSelectUIDL4);
        TUid uidFeature;
        uidFeature.iUid = GetUserInput(EFalse);
                
        TBitFlags32 flags(0);
        //Set the feature to be upgradable and modifiable.
    flags.Set( EFeatureSupported );
    flags.Set( EFeatureModifiable );
        
        _LIT(KSetFeaturedata, "\nEnter an integer value to set the feature data\n");
        iConsole->Printf(KSetFeaturedata);
        TUint32 fdata = GetUserInput(ETrue);
        iConsole->Printf(KNewline);
        TFeatureEntry featureEntry(uidFeature ,flags, fdata); 
        TInt featadded = User::LeaveIfError(iFeatControl.AddFeature(featureEntry));
        if(featadded == KErrNone)
                {
                _LIT(KFeatureAdded, "A new feature is added.\n");
                iConsole->Printf(KFeatureAdded);
                }
        RequestCharacter();
        }

void CFeatMngrExample::DeleteL()
        {
        _LIT(KUIDtoDelete, "Enter the UID of the feature to delete\n");
        iConsole->Printf(KUIDtoDelete);
        TUid uidFeature;
        uidFeature.iUid = GetUserInput(EFalse);
        iConsole->Printf(KNewline);
        TInt featdeleted = User::LeaveIfError(iFeatControl.DeleteFeature(uidFeature));
        if(featdeleted == KErrNone)
                {
                _LIT(KFeatDeleted, "The feature is deleted.\n");
                iConsole->Printf(KFeatDeleted);
                }
        RequestCharacter();
        }

void CFeatMngrExample::EnableFeatureL()
        {
        _LIT(KUIDtoEnable, "Enter the UID of the feature to enable/disable\n");
        iConsole->Printf(KUIDtoEnable);
        TUid uidFeature;
        uidFeature.iUid = GetUserInput(EFalse);
        
        _LIT(KEnable, "\nPress e/d to enable/disable it\n");
        iConsole->Printf(KEnable);
        TChar ch = iConsole->Getch();
        if(ch == 'e')
                {
                User::LeaveIfError(iFeatControl.EnableFeature(uidFeature));
                }
        else if(ch == 'd')
                {
                User::LeaveIfError(iFeatControl.DisableFeature(uidFeature));
                }
        RequestCharacter();
        }

void CFeatMngrExample::CheckFeatureSupportL()
        {
        _LIT(KPrintUIDtoCheck, "Enter the UID to check if it is supported\n");
        iConsole->Printf(KPrintUIDtoCheck);
        
        TUid uidFeature;
        uidFeature.iUid = GetUserInput(EFalse);
        iConsole->Printf(KNewline);
        User::LeaveIfError(iFeatControl.FeatureSupported(uidFeature));
        
        TInt err = iFeatControl.FeatureSupported(uidFeature);
        if(err == KFeatureSupported)
                {
                _LIT(KFeatSupported, "\nThis feature is supported\n");
                iConsole->Printf(KFeatSupported);
                }
        else if(err == KFeatureUnsupported)
                {
                _LIT(KFeatNotsupported, "\nThis feature is not supported\n");
                iConsole->Printf(KFeatNotsupported);
                }
        else if(err == KErrNotFound)
                {
                _LIT(KFeatNotFound, "\nThis feature is not found\n");
                iConsole->Printf(KFeatNotFound);
                }
        else
                {
                _LIT(KErr, "Failed : %d");
                iConsole->Printf(KErr, err);
                }
        
        RequestCharacter();
        }

void CFeatMngrExample::ListFeaturesL()
        {
        RFeatureUidArray supportedFeatures;
        CleanupClosePushL(supportedFeatures);
        
        iFeatControl.ListSupportedFeatures(supportedFeatures);
        TInt featureCount = supportedFeatures.Count();
        _LIT(KFeatureCount, "The number of features present is : %d \n");
        iConsole->Printf(KFeatureCount, featureCount);
        for(int j=0; j< featureCount; j++)
                {
                _LIT(KFeatureUID, "Feature UID%d is %x \n");
                iConsole->Printf(KFeatureUID, (j+1), supportedFeatures[j]);
                //list 12 entries at a time, to ensure visibility in the console.
                if((j+1)%12 == 0)
                        {
                        _LIT(KPress, "Press any key to continue\n");
                        iConsole->Printf(KPress);
                        iConsole->Getch();
                        }
                }
        CleanupStack::PopAndDestroy(&supportedFeatures);
        RequestCharacter();     
        }

TInt64 CFeatMngrExample::GetUserInput(TBool aDecimal)
        {
        TBufC<50> buf;
        TPtr ptr(buf.Des());
        TKeyCode ch = iConsole->Getch();
        while(ch != EKeyEnter)
                {
                _LIT(KChar, "%c");
                iConsole->Printf(KChar,ch);
                if(ch!= EKeyBackspace)
                        {
                        ptr.Append(ch);
                        }
                ch=iConsole->Getch();                           
                }
        TInt64 value;
        TInt err;
        if(aDecimal)
                {
                err = TLex(ptr).Val(value);
                }
        else
                {
                err = TLex(ptr).Val(value, EHex);
                }
        if (err == KErrNone)
                {
                return value;
                }
        else 
                {
                return KErrArgument; // Error condition - could not parse input.
                }
        }

void CFeatMngrExample::UpdateL()
        {
        _LIT(KFeatUpdate, "Enter the UID of the feature to be updated\n");
        iConsole->Printf(KFeatUpdate);
        TUid uidFeature;
        uidFeature.iUid = GetUserInput(EFalse);
                        
        _LIT(KSetFeaturedata, "\nEnter a number to set as the feature data\n");
        iConsole->Printf(KSetFeaturedata);
        TUint32 fdata = GetUserInput(ETrue);
        iConsole->Printf(KNewline);
        //Updates any existing feature  
        User::LeaveIfError(iFeatControl.SetFeature(uidFeature , fdata));
        RequestCharacter();
        }


void CFeatMngrExample::DoCancel()
        {
        iConsole->ReadCancel();
        }


void CFeatMngrExample::RequestCharacter()
        {
        _LIT(KMenuL1,"\nSelect one option from the following:\n");
        _LIT(KMenuL2,"1.List the features currently present\n");
        _LIT(KMenuL3,"2.Add a feature\n");
        _LIT(KMenuL4,"3.Update a feature\n");
        _LIT(KMenuL5,"4.Enable/Disable a feature\n");
        _LIT(KMenuL6,"5.Delete a feature\n");
        _LIT(KMenuL7,"6.Check feature support\n");
        _LIT(KMenuL8,"Press any other key to exit\n");
        
        iConsole->Printf(KMenuL1);
        iConsole->Printf(KMenuL2);
        iConsole->Printf(KMenuL3);
        iConsole->Printf(KMenuL4);
        iConsole->Printf(KMenuL5);
        iConsole->Printf(KMenuL6);
        iConsole->Printf(KMenuL7);
        iConsole->Printf(KMenuL8);
        iConsole->Printf(KNewline);
        // Read the key press. RunL() will be called when iStatus completes.
    iConsole->Read(iStatus);
    if(!IsActive())
        {
        SetActive();
        }
        }

static void MainL()
        {
        CActiveScheduler* scheduler = new (ELeave) CActiveScheduler();
        CleanupStack::PushL(scheduler);
        CActiveScheduler::Install(scheduler);
        
        CFeatMngrExample* featMngr = CFeatMngrExample::NewL();
        CleanupStack::PushL(featMngr);
        featMngr->RequestCharacter();
        CActiveScheduler::Start();
        
        CleanupStack::PopAndDestroy(featMngr);
        CleanupStack::PopAndDestroy(scheduler);
        }

extern TInt E32Main()
        {
        // Create cleanup stack
        __UHEAP_MARK;
        CTrapCleanup* cleanup = CTrapCleanup::New();
        if(cleanup == NULL)
                {
                return KErrNoMemory;
                }
        // Run application code inside a TRAP harness.
        TRAPD(mainError, MainL());
        if(mainError != KErrNone)
                {
                _LIT(KUserPanic,"Failed to complete");  
                User::Panic(KUserPanic, mainError);
                }
        delete cleanup;
        __UHEAP_MARKEND;
        return KErrNone;
        }

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