diff -r 000000000000 -r f72a12da539e idlehomescreen/xmluicontroller/inc/aixuikoneventhandler.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/idlehomescreen/xmluicontroller/inc/aixuikoneventhandler.h	Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,176 @@
+/*
+* Copyright (c) 2005-2007 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:  Used for handling XUIKON events
+*
+*/
+
+
+#ifndef C_EVENTHANDLER_H
+#define C_EVENTHANDLER_H
+
+#include <e32base.h>
+
+#include "xnvolumecontrolobserver.h"
+#include "xnvolumecontrol.h"
+
+class CXnNodeAppIf;
+class CXnProperty;
+class MAiFwEventHandler;
+class MAiStrParser;
+class TXnUiEngineAppIf;
+class CXnDomNode;
+
+namespace AiXmlUiController
+{
+    
+class CXmlUiController;
+class CContentRenderer;
+class MAiUiEventHandler;
+class MAiApplicationEventHandler;
+
+/**
+ *  @ingroup group_xmluicontroller
+ * 
+ *  This class is used for handling XUIKON events.
+ *
+ *  Events described in Content Model are handled in here. This class parses
+ *  the events and decides what to do with them. Events are either consumed in
+ *  UI or in case of a plug-in event forwarded to XML AI Framework for further
+ *  processing.
+ *
+ *  @lib AiXmlUiMain
+ */
+class CAIXuikonEventHandler : public CBase,
+                              public MXnVolumeControlObserver
+    {
+public:
+
+    static CAIXuikonEventHandler* NewL(CXmlUiController& aXmlUiController,
+                                       CContentRenderer& aRenderer);
+    ~CAIXuikonEventHandler();
+
+    /**
+    * Handle interaction notification from XUIKON UI engine.
+    *
+    * @see CXnAppUiAdapter::HandleXuikonEventL
+    */
+    void HandleXuikonEventL( CXnNodeAppIf& aOrigin,
+                             CXnNodeAppIf& aTrigger,
+                             CXnDomNode& aTriggerDefinition,
+                             CXnDomNode& aEvent );
+
+    /**
+    * Set handler for plug-in events
+    * @param aPluginEventHandler Pointer to event handler
+    */
+    void SetFwEventHandler( MAiFwEventHandler* aPluginEventHandler );
+
+    /**
+    * Set handler for UI events
+    * @param aUiEventHandler Pointer to event handler
+    */
+    void SetUiEventHandler( MAiUiEventHandler* aUiEventHandler );
+
+    /**
+    * Set handler for application events
+    * @param aApplicationEventHandler Pointer to event handler
+    */
+    void SetApplicationEventHandler( MAiApplicationEventHandler* 
+                                        aApplicationEventHandler );
+
+// from MXnVolumeControlObserver
+    
+    /**
+    * Called when volume value is changed.
+    */
+    void VolumeChanged( TInt aValue );
+
+private:
+    CAIXuikonEventHandler(CXmlUiController& aUiController,
+                          CContentRenderer& aRenderer);
+                          
+    void ConstructL();
+    
+    TBool HandleSystemEventL( const TDesC8& aEventText, CXnDomNode& aEvent );
+    
+    TBool HandleUiEventL( const TDesC8& aEventText, CXnNodeAppIf& aOrigin );
+    
+    TBool HandleApplicationEventL( const TDesC8& aEventText );
+    
+    void DispatchEventL( CXnDomNode& aEvent,
+                         CXnNodeAppIf& aOrigin,
+                         CXnDomNode& aTriggerDefinition );
+                         
+    void HandlePluginEventL( CXnDomNode& aEvent );
+        
+    void ParseParameterStringL(const TDesC8& aSourcePtr, TPtrC8& aTargetPtr);    
+    
+private: // data
+
+    class CNullEventHandler;
+
+    /**
+     * String parser utility. Own.
+     */
+    MAiStrParser* iStrParser;
+
+    /**
+     * Reference to XML ui controller.
+     */
+    CXmlUiController& iUiController;
+    
+    /**
+     * Reference to content renderer.
+     */
+    CContentRenderer& iContentRenderer;
+    
+    /**
+     * Null event handler.
+     */
+    CNullEventHandler* iNullEventHandler;
+
+    /**
+     * Plug-in event handler.
+     * Doesn't own.
+     */
+     MAiFwEventHandler* iFwEventHandler;
+
+    /**
+     * UI event handler.
+     * Doesn't own.
+     */
+     MAiUiEventHandler* iUiEventHandler;
+
+    /**
+     * Application event handler.
+     * Doesn't own.
+     */
+     MAiApplicationEventHandler* iApplicationEventHandler;
+     
+    /**
+     * Volume control event.
+     * Owned.
+     */
+    HBufC* iVolumeEvent;
+
+    /**
+     * Volume control interface.
+     * Not owned.
+     */
+    XnVolumeControlInterface::MXnVolumeControlInterface* iVolumeControl;
+    };
+
+} // namespace AiXmlUiController
+
+#endif // C_EVENTHANDLER_H