--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uifw/EikStd/coctlsrc/gfxtransextension.cpp	Tue Feb 02 01:00:49 2010 +0200
@@ -0,0 +1,301 @@
+/*
+* Copyright (c) 2007 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:  Utility class for passing data between controls.
+*
+*/
+
+
+#include "gfxtransextension.h"
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CGfxTransExtension::TDataEntry::TDataEntry( const TInt aKey, 
+                                            const TDesC8* aData ) :
+        iKey( aKey ), iData( aData )
+    {
+    }
+        
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+TBool CGfxTransExtension::TDataEntry::SameKey( const TDataEntry& aEntry1, 
+                                               const TDataEntry& aEntry2 )
+    {
+    return aEntry1.iKey == aEntry2.iKey;
+    }
+    
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CGfxTransExtension::TTransitionObserver::TTransitionObserver( 
+            const TInt aKey, const TInt aEventType, 
+            MAknTransitionUtilsObserver* aObserver ) :
+        iKey( aKey ), iObserver( aObserver ), iEventType( ( TEvents )aEventType )
+    {
+    }
+ 
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+TBool CGfxTransExtension::TTransitionObserver::SameKey( 
+        const TTransitionObserver& aObserver1,
+        const TTransitionObserver& aObserver2 )
+    {
+    return aObserver1.iKey == aObserver2.iKey;
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+TBool CGfxTransExtension::TTransitionObserver::Equal( 
+        const TTransitionObserver& aObserver1,
+        const TTransitionObserver& aObserver2 )
+    {
+    return ( aObserver1.iObserver == aObserver2.iObserver ) &&
+           ( aObserver1.iEventType == aObserver2.iEventType );
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CGfxTransExtension::~CGfxTransExtension() 
+    {
+    TInt count = iUserData.Count();
+        
+    for ( TInt i = 0; i < count; i++ )
+        {
+        delete iUserData[i].iData;
+        }
+            
+    iUserData.Reset();
+    iObservers.Reset();
+    };
+
+/*
+    static TInt GetState(TInt aEvent, TInt* aState, TDes8* aParams = NULL);
+
+    // FIXME: TDes8 instead of TAny
+    static TInt SetData( const TInt aKey, TAny* aData );
+    static TAny* GetData( const TInt aKey );
+    static void RemoveData( const TInt aKey );
+*/
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+TInt CGfxTransExtension::AddObserver( MAknTransitionUtilsObserver* aObserver,
+                                      TInt aEvent,
+                                      const TDesC8* aParams )
+    {
+    CGfxTransExtension* singleton = 
+        reinterpret_cast<CGfxTransExtension*>(CCoeEnv::Static( KGfxTransExtensionUid ) );
+    if ( !singleton )
+        {
+        return KErrNoMemory;
+        }
+    
+    TInt key = ( TInt )aParams;
+    TInt count = singleton->iObservers.Count();
+    TBool exists = EFalse;
+    for ( TInt i = 0; i < count; i++ )
+        {
+        TTransitionObserver o = singleton->iObservers[i];
+        if ( ( o.iEventType == aEvent ) && ( o.iObserver == aObserver ) )
+            {
+            exists = ETrue;
+            break;
+            }
+        }
+        
+    if ( !exists )
+        {
+        TTransitionObserver observer( key, aEvent, aObserver );
+        singleton->iObservers.Append( observer );
+        }
+
+    if ( aEvent == EEventControlTransitionFinished )
+        {
+        GfxTransEffect::SetTransitionObserver( singleton );
+        singleton->iNumControlTransitionObservers++;
+        }
+        
+    return KErrNone;
+    }
+  
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+TInt CGfxTransExtension::RemoveObserver( 
+        MAknTransitionUtilsObserver* aObserver, TInt aEvent )
+    {
+    CGfxTransExtension* singleton = CGfxTransExtension::Static();
+    if ( !singleton )
+        {
+        return KErrNotFound;
+        }
+
+    TIdentityRelation<TTransitionObserver> identity( TTransitionObserver::Equal );
+    TTransitionObserver tmp( 0, aEvent, aObserver );
+    TInt index = singleton->iObservers.Find( tmp, identity );
+    if ( index != KErrNotFound )
+        {
+        singleton->iObservers.Remove( index );
+        if ( aEvent == EEventControlTransitionFinished )
+            {
+            singleton->iNumControlTransitionObservers--;
+            }
+        
+        if ( singleton->iNumControlTransitionObservers == 0 )
+            {
+            GfxTransEffect::SetTransitionObserver( NULL );
+            }
+            
+        return KErrNone;
+        }
+        
+    return KErrNotFound;
+    }
+    
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+TInt CGfxTransExtension::GetState(TInt /*aEvent*/, TInt* /*aState*/, TDes8* /*aParams*/ )
+    {
+    return 0;
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CGfxTransExtension::TransitionFinished( const CCoeControl* aControl, 
+                                             TUint /* aAction */ )
+    {
+    CGfxTransExtension* singleton = 
+        reinterpret_cast<CGfxTransExtension*>(CCoeEnv::Static( KGfxTransExtensionUid ) );
+    if ( !singleton )
+        {
+        return;
+        }
+
+    TInt key = ( TInt )aControl;
+
+    TInt count = singleton->iObservers.Count();
+    for ( TInt i = 0; i < count; i++ )
+        {
+        if ( singleton->iObservers[i].iKey == key )
+            {
+            singleton->iObservers[i].iObserver->AknTransitionCallback(
+                EEventControlTransitionFinished, 0, ( const TDesC8* )aControl );
+            }
+        }
+    }
+    
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CGfxTransExtension::RemoveData( const TInt aKey )
+    {
+    CGfxTransExtension* singleton = CGfxTransExtension::Static();
+    if ( !singleton )
+        {
+        return;
+        }
+
+    // Find the data
+    TIdentityRelation<TDataEntry> identity( TDataEntry::SameKey );
+    TDataEntry tmp( aKey, NULL );
+    TInt index = singleton->iUserData.Find( tmp, identity );
+    if ( index != KErrNotFound )
+        {
+        delete singleton->iUserData[index].iData;
+        singleton->iUserData.Remove( index );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+TInt CGfxTransExtension::SetData( const TInt aKey, const TDesC8* aData )
+    {
+    CGfxTransExtension* singleton = CGfxTransExtension::Static();
+    if ( !singleton )
+        {
+        return KErrNoMemory;
+        }
+        
+    TIdentityRelation<TDataEntry> identity( TDataEntry::SameKey );
+    TDataEntry tmp( aKey, aData );
+    TInt index = singleton->iUserData.Find( tmp, identity );
+    if ( index != KErrNotFound )
+        {
+        delete singleton->iUserData[index].iData;
+        singleton->iUserData[index].iData = aData;
+        }
+    else
+        {
+        singleton->iUserData.Append( tmp );
+        }
+
+    return KErrNone;
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+const TDesC8* CGfxTransExtension::GetData( const TInt aKey )
+    {
+    CGfxTransExtension* singleton = CGfxTransExtension::Static();
+    if ( !singleton )
+        {
+        return NULL;
+        }
+        
+    TIdentityRelation<TDataEntry> identity( TDataEntry::SameKey );
+    TDataEntry tmp( aKey, NULL );
+    TInt index = singleton->iUserData.Find( tmp, identity );
+    if ( index != KErrNotFound )
+        {
+        return singleton->iUserData[index].iData;
+        }
+    else
+        {
+        return NULL;
+        }
+    }
+        
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CGfxTransExtension::CGfxTransExtension() :
+        CCoeStatic( KGfxTransExtensionUid, -1, CCoeStatic::EThread ),
+        iNumControlTransitionObservers( 0 )
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CGfxTransExtension* CGfxTransExtension::Static()
+    {
+    CGfxTransExtension* singleton = 
+        reinterpret_cast<CGfxTransExtension*>(CCoeEnv::Static( KGfxTransExtensionUid ) );
+    if ( !singleton )
+        {
+        singleton = new CGfxTransExtension();
+        }
+        
+    return singleton;
+    }