sl@0: // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: 
sl@0: 
sl@0: #include <e32cmn.h>
sl@0: #include <featdiscovery.h>
sl@0: #include "featdiscoveryimpl.h"
sl@0: #include "featurecontrol.h"
sl@0: #include "featurecmn.h"
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatureDiscoveryImpl::CFeatureDiscoveryImpl* NewL()
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: CFeatureDiscoveryImpl* CFeatureDiscoveryImpl::NewL()
sl@0:     {
sl@0:     CFeatureDiscoveryImpl* self = new( ELeave ) CFeatureDiscoveryImpl();
sl@0:     CleanupStack::PushL( self );
sl@0:     self->ConstructL();
sl@0:     CleanupStack::Pop( self );
sl@0: 
sl@0:     return self;
sl@0:     }
sl@0: 
sl@0: 
sl@0: 
sl@0: // ---------------------------------------------------------
sl@0: // CFeatureDiscoveryImpl::ConstructL
sl@0: //
sl@0: // Symbian OS default constructor, initializes variables and cache 
sl@0: // ---------------------------------------------------------
sl@0: //
sl@0: void CFeatureDiscoveryImpl::ConstructL()
sl@0:     {
sl@0:     TInt err( iFeatControl.Connect() );
sl@0:     User::LeaveIfError( err );
sl@0:     }
sl@0: 
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatureDiscoveryImpl::~CFeatureDiscoveryImpl()
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: CFeatureDiscoveryImpl::~CFeatureDiscoveryImpl()
sl@0:     {
sl@0:     iFeatControl.Close();
sl@0:     }
sl@0: 
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatureDiscoveryImpl::CFeatureDiscoveryImpl()
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: CFeatureDiscoveryImpl::CFeatureDiscoveryImpl()
sl@0:     {
sl@0:     }
sl@0: 
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatureDiscoveryImpl::IsFeatureSupportedL(TUid)
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: TBool CFeatureDiscoveryImpl::IsFeatureSupportedL(TUid aFeature)
sl@0:     {
sl@0:     RFeatureControl featControl;
sl@0:     TInt err( featControl.Connect() );
sl@0:     User::LeaveIfError( err );
sl@0:     TFeatureEntry feature( aFeature );
sl@0:     err = featControl.FeatureSupported( feature );
sl@0:     featControl.Close();
sl@0:     
sl@0:     return (( err > 0 ) ? ETrue : EFalse );
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatureDiscoveryImpl::IsSupported(TUid)
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: TBool CFeatureDiscoveryImpl::IsSupported(TUid aFeature)
sl@0:     {
sl@0:     TFeatureEntry feature( aFeature );
sl@0:     
sl@0:     return (( iFeatControl.FeatureSupported( feature ) > 0 ) ? ETrue : EFalse );
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatureDiscoveryImpl::FeaturesSupportedL(TFeatureSet&)
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: void CFeatureDiscoveryImpl::FeaturesSupportedL( TFeatureSet& aFeatures )
sl@0:     {
sl@0:     RFeatureControl featControl;
sl@0:     CleanupClosePushL( featControl );
sl@0:     TInt err( featControl.Connect() );
sl@0:     User::LeaveIfError( err );
sl@0:     
sl@0:     // Construct feature entry array used by feature control
sl@0:     RFeatureArray features;
sl@0:     CleanupClosePushL( features );
sl@0:     TInt count( aFeatures.Count() );
sl@0:     
sl@0:     for(TInt i(0); i < count; i++)
sl@0:         {
sl@0:         TFeatureEntry feature( aFeatures.FeatureId( i ) );
sl@0:         features.AppendL( feature );
sl@0:         }
sl@0: 
sl@0:     // Fetch feature information from server
sl@0:     err = featControl.FeaturesSupported( features );
sl@0:     User::LeaveIfError( err );
sl@0: 
sl@0:     // Refresh count of features after query, non existing features are removed 
sl@0:     count = features.Count();
sl@0:     // Write information back to format feature discovery uses
sl@0:     aFeatures.Reset();
sl@0:     
sl@0:     for(TInt i(0); i < count; i++)
sl@0:         {
sl@0:         const TUid uid( features[i].FeatureUid() );
sl@0:         const TBool supported( features[i].FeatureFlags().IsSet( EFeatureSupported ) );
sl@0:         err = aFeatures.Append( uid, supported );
sl@0:         User::LeaveIfError( err );
sl@0:         }
sl@0: 
sl@0:     CleanupStack::PopAndDestroy( &features );
sl@0:     CleanupStack::PopAndDestroy( &featControl );
sl@0:     }
sl@0: 
sl@0: // -----------------------------------------------------------------------------
sl@0: // CFeatureDiscoveryImpl::FeaturesSupported(TFeatureSet&)
sl@0: // -----------------------------------------------------------------------------
sl@0: //
sl@0: TInt CFeatureDiscoveryImpl::FeaturesSupported( TFeatureSet& aFeatures )
sl@0:     {
sl@0:     // Construct feature entry array used by feature control
sl@0:     TInt err( KErrNone );
sl@0:     RFeatureArray features;
sl@0:     TInt count( aFeatures.Count() );
sl@0:     
sl@0:     for(TInt i(0); i < count; i++)
sl@0:         {
sl@0:         TFeatureEntry feature( aFeatures.FeatureId( i ) );
sl@0:         err = features.Append( feature );
sl@0:         if( err != KErrNone )
sl@0:             {
sl@0:             break;
sl@0:             }
sl@0:         }
sl@0: 
sl@0:     if( err == KErrNone )
sl@0:         {
sl@0:         // Fetch feature information from server
sl@0:         err = iFeatControl.FeaturesSupported( features );
sl@0:         // Refresh count of features after query, non existing features are removed
sl@0:         count = features.Count();
sl@0:         }
sl@0: 
sl@0:     if( err == KErrNone )
sl@0:         {
sl@0:         // Write information back to format feature discovery uses
sl@0:         aFeatures.Reset();
sl@0:         
sl@0:         for(TInt i(0); i < count; i++)
sl@0:             {
sl@0:             const TUid uid( features[i].FeatureUid() );
sl@0:             const TBool supported( features[i].FeatureFlags().IsSet( EFeatureSupported ) );
sl@0:             err = aFeatures.Append( uid, supported );
sl@0:             if( err != KErrNone )
sl@0:                 {
sl@0:                 break;
sl@0:                 }
sl@0:             }
sl@0:         }
sl@0:     
sl@0:     features.Close();
sl@0:     return err;
sl@0:     }
sl@0: // EOF