diff -r 5f0182e07bfb -r 5456b4e8b3a8 menufw/hierarchynavigator/hnpresentationmodel/src/hneventhandler.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/menufw/hierarchynavigator/hnpresentationmodel/src/hneventhandler.cpp	Wed Sep 01 12:32:46 2010 +0100
@@ -0,0 +1,256 @@
+/*
+* Copyright (c) 2007-2008 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:  event handler class
+*
+*/
+
+
+#include <liwservicehandler.h>
+#include "hneventhandler.h"
+#include "hnmdmodel.h"
+#include "hnglobals.h"
+#include "hnconvutils.h"
+#include "hnliwutils.h"
+#include "hnmdbasekey.h"
+#include "hncontrollerinterface.h"
+#include "hnactionmodel.h"
+#include "hnservicehandler.h"
+#include "menudebug.h"
+
+// ============================ MEMBER FUNCTIONS =============================
+
+
+// ---------------------------------------------------------------------------
+// Safe constructor. Initializes refrerece to the Meta Data Model in which
+// the event-to-action mappings are stored.
+// ---------------------------------------------------------------------------
+//
+CHnEventHandler::CHnEventHandler( MHnMdModelEventObserver& aModelObserver,
+        MHnControllerInterface& aController ):
+        iEventObserver( aModelObserver), iControllerInterface( aController )
+    {
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+CHnEventHandler::~CHnEventHandler()
+    {
+    delete iServiceHandler;
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+CHnEventHandler* CHnEventHandler::NewLC(
+                                      MHnMdModelEventObserver& aModelObserver,
+                                      MHnControllerInterface& aController )
+    {
+    CHnEventHandler* self =
+        new (ELeave)CHnEventHandler( aModelObserver, aController );
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+CHnEventHandler* CHnEventHandler::NewL(
+                                    MHnMdModelEventObserver& aModelObserver,
+                                    MHnControllerInterface& aController )
+    {
+    CHnEventHandler* self=CHnEventHandler::NewLC( aModelObserver,
+                                                  aController );
+    CleanupStack::Pop(self);
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+void CHnEventHandler::ConstructL()
+    {
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+TInt CHnEventHandler::ExecuteStandardActionL( CHnActionModel* aActionModel )
+    {
+    const TDesC8& service = aActionModel->Service();
+    const TDesC8& interface =  aActionModel->Interface();
+    const TDesC8& commandName = aActionModel->CommandName();
+    const TServiceMode mode = aActionModel->ServiceMode();
+    CLiwGenericParamList* constructor = aActionModel->ConstructorLC();
+    CLiwGenericParamList* serviceCommand = aActionModel->CommandLC();
+    
+    if ( iServiceHandler && ( iIsExecutingStandardAsyncAction
+            || !iServiceHandler->ServiceHandlerMatchesModel(
+                    service, interface, constructor ) ) )
+        {
+        delete iServiceHandler; // this will cancel async. action execution
+        iServiceHandler = NULL;
+        iIsExecutingStandardAsyncAction = EFalse;
+        }
+    
+    if ( !iServiceHandler )
+        {
+        iServiceHandler = CHnServiceHandler::NewL( service, interface,
+                commandName, mode, constructor, serviceCommand );
+        CleanupStack::Pop( serviceCommand );
+        CleanupStack::Pop( constructor );
+        }
+    else
+        {
+        iServiceHandler->PrepareForNextExecutionL(
+                commandName, mode, serviceCommand );
+        CleanupStack::Pop( serviceCommand );
+        CleanupStack::PopAndDestroy( constructor );
+        constructor = NULL;
+        }
+
+    __ASSERT_DEBUG( !iIsExecutingStandardAsyncAction, User::Invariant() );
+    if ( mode == EServiceModeAsynchronous )
+        {
+        iIsExecutingStandardAsyncAction = ETrue;
+        }
+    TInt res = iServiceHandler->ExecuteL( this, 0 );
+    return res;
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+TInt CHnEventHandler::ExtractUidFromActionL( const TDesC8& aInterface,
+        TUid& aUid )
+    {
+    DEBUG16(("_MM_: CHnEventHandler::ExtractUidFromActionL UIext - uid %S",
+                &aInterface ));
+
+    TLex8 lex( aInterface );
+    lex.Inc( 2 );
+    return lex.Val( (TUint32 &) aUid.iUid, EHex );
+    }
+
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+TInt CHnEventHandler::ExecuteInternalActionL( CHnActionModel* aActionModel )
+    {
+    TInt ret(KErrNotFound);
+    CLiwGenericParamList* params = aActionModel->CommandLC();
+    if ( aActionModel->CommandName() == KServiceOpenSuite )
+        {
+        ret = iEventObserver.HandleModelEventL( KNewSuiteLoadedMdEvent(),
+                *params );
+        }
+    else if ( aActionModel->CommandName() == KServiceSwitchWidget )
+        {
+        ret = iEventObserver.HandleModelEventL( KSwitchWidgetMdEvent(),
+                *params );
+        }
+    else if ( aActionModel->CommandName() == KServiceStartEditMode )
+        {
+        ret = iEventObserver.HandleModelEventL( KStartEditModeMdEvent(),
+                *params );
+        }
+    else if ( aActionModel->CommandName() == KServiceStopEditMode )
+        {
+        ret = iEventObserver.HandleModelEventL( KStopEditModeMdEvent(),
+                *params );
+        }
+    else if ( aActionModel->CommandName() == KServiceBack )
+        {
+        ret = iEventObserver.HandleModelEventL( KBackMdEvent(),
+                *params );
+        }
+    else if ( aActionModel->CommandName() == KSetFocus )
+        {
+        ret = iEventObserver.HandleModelEventL( KSetFocusEvent(),
+                *params );
+        }
+
+    CleanupStack::PopAndDestroy( params );
+    return ret;
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+TInt CHnEventHandler::ExecuteExtensionManagerActionL(
+        CHnActionModel* aActionModel )
+    {
+    TUid uid;
+    TInt err = ExtractUidFromActionL( aActionModel->Interface(), uid );
+
+    if ( KErrNone == err )
+        {
+        HBufC* cmd = HnConvUtils::Str8ToStrFastLC( aActionModel->CommandName() );
+        CLiwGenericParamList* command = aActionModel->CommandLC();
+        err = iControllerInterface.ExecuteExtensionActionL( uid, *cmd, command );
+        CleanupStack::PopAndDestroy( command );
+        CleanupStack::PopAndDestroy( cmd );
+        }
+
+    return err;
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CHnEventHandler::ExecuteActionL( CHnActionModel* aActionModel )
+    {
+    ASSERT( aActionModel );
+    TInt err( KErrNone );
+
+    if( aActionModel->Service() == KServiceMultimediaMenu )
+        {
+        if ( aActionModel->Interface().Length() == 0 )
+            {
+            err = ExecuteInternalActionL( aActionModel );
+            }
+        else
+            {
+            err = ExecuteExtensionManagerActionL( aActionModel );
+            }
+        }
+    else
+        {
+        err = ExecuteStandardActionL( aActionModel );
+        }
+
+    return err;
+    }
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+TInt CHnEventHandler::HandleNotifyL( TInt /*aCmdId*/, TInt /*aEventId*/,
+        CLiwGenericParamList& /*aEventParamList*/,
+        const CLiwGenericParamList& /*aInParamList*/ )
+    {
+    iIsExecutingStandardAsyncAction = EFalse;
+    return KErrNone;
+    }