--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/idlehomescreen/xmluirendering/uiengine/inc/xnuistatelistener.h	Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,240 @@
+/*
+* Copyright (c) 2002-2004 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:
+* Xuikon UI state controller
+*
+*/
+
+#ifndef XNUISTATELISTENER_H
+#define XNUISTATELISTENER_H
+
+// System includes
+#include <e32base.h>
+#include <hwrmlight.h>
+#include <eikspane.h>
+
+// User includes
+#include "xnpropertysubscriber.h"
+
+// Forward declarations
+class CXnAppUiAdapter;
+
+// Constants
+
+// Class declaration
+/**
+ * UI resource change observer interface
+ *
+ * @ingroup group_xnlayoutengine
+ * @lib xn3layoutengine.lib
+ * @since S60 5.0
+ */
+NONSHARABLE_CLASS( MXnUiResourceChangeObserver )
+    {
+public:
+    /**
+     * Notifies statuspane is changed.
+     * 
+     * @since S60 5.0
+     */
+    virtual void NotifyStatusPaneSizeChanged() = 0;
+
+    /**
+     * Notifies resource changes
+     * 
+     * @since S60 5.0
+     * @param aType Resource type
+     */
+    virtual void NotifyResourceChanged( TInt aType ) = 0;    
+        
+    /**
+     * Notifies HW flip/slide status changes
+     * 
+     * @since S60 5.0
+     * @param aStatus flip/slide status     
+     */
+    /* virtual void NotifyFlipStatusChangedL( TInt aStatus ) = 0;*/
+    };
+
+// Class declaration
+/**
+ * UI state observer interface
+ *
+ * @ingroup group_xnlayoutengine
+ * @lib xn3layoutengine.lib
+ * @since S60 5.0
+ */
+NONSHARABLE_CLASS( MXnUiStateObserver )
+    {
+public:
+    // new types
+    enum TForegroundStatus
+        {
+        EUnknown,
+        EBackground,
+        EForeground,
+        EPartialForeground,        
+        };
+public:
+    /**
+     * Notifies foreground changes
+     *
+     * @since S60 5.0    
+     * @param aState Foreground state
+     */
+    virtual void NotifyForegroundChanged( 
+            TForegroundStatus aStatus ) = 0;
+    
+    /**
+     * Notifies primary display light status is changed.
+     * 
+     * @since S60 5.0
+     * @param aLightsOn ETrue if lights on, EFalse otherwise 
+     */
+    virtual void NotifyLightStatusChanged( TBool aLightsOn ) = 0;
+        
+    /**
+     * Notifies in-call state is changed.
+     * 
+     * @since S60 5.0
+     * @param aInCall ETrue if in-call on, EFalse otherwise
+     */
+    virtual void NotifyInCallStateChaged( TBool aInCall ) = 0;    
+    };
+
+/**
+ * UI state listener
+ *
+ * @ingroup group_xnlayoutengine
+ * @lib xn3layoutengine.lib
+ * @since S60 5.0
+ */
+NONSHARABLE_CLASS( CXnUiStateListener ) : public CBase,    
+    public MCoeMessageMonitorObserver,
+    public MEikStatusPaneObserver,
+    public MHWRMLightObserver,
+    public MXnPropertyChangeObserver    
+    {    
+private:
+    // friend classes
+    friend class CXnAppUiAdapterImpl;
+    
+public:
+    /**
+     * Two-phased constructor.
+     */
+    static CXnUiStateListener* NewL( CXnAppUiAdapter& aAdapter );
+    static CXnUiStateListener* NewLC( CXnAppUiAdapter& aAdapter );
+
+    /**
+     * Destructor.
+     */
+    ~CXnUiStateListener();
+
+private:
+    /**
+     * 2nd phase construtor
+     */    
+    void ConstructL();
+    
+    /**
+     * C++ default constructor.
+     */
+    CXnUiStateListener( CXnAppUiAdapter& aAdapter );
+
+public:
+    // New functions
+    
+    /*
+     * Adds MXnUiStateObserver
+     * 
+     * @since S60 5.0
+     * @param aObserver Observer to add 
+     */
+    void AddObserver( const MXnUiStateObserver& aObserver );
+    
+    /*
+     * Removes MXnUiStateObserver
+     * 
+     * @since S60 5.0
+     * @param aObserver Observer to remove 
+     */    
+    void RemoveObserver( const MXnUiStateObserver& aObserver );
+
+    /*
+     * Adds MXnUiResourceChangeObserver
+     * 
+     * @since S60 5.0
+     * @param aObserver Observer to add 
+     */
+    void AddObserver( const MXnUiResourceChangeObserver& aObserver );
+    
+    /*
+     * Removes MXnUiResourceChangeObserver
+     * 
+     * @since S60 5.0
+     * @param aObserver Observer to remove 
+     */    
+    void RemoveObserver( const MXnUiResourceChangeObserver& aObserver );
+    
+public:
+    void SetEditModeActive( TBool aActive );
+    
+private:
+    // New functions
+    void HandleResourceChangeL( TInt aType );
+    
+private:
+    // from MCoeMessageMonitorObserver
+    void MonitorWsMessage( const TWsEvent& aEvent );
+
+private:
+    // from MEikStatusPaneObserver
+    void HandleStatusPaneSizeChange();
+
+private:
+    // from MHWRMLightObserver
+    void LightStatusChanged( TInt aTarget, CHWRMLight::TLightStatus aStatus ); 
+                                        
+private:    
+    // from MXnPropertyChangeObserver    
+    void PropertyChangedL( const TUint32 aKey, const TInt aValue );
+
+private:
+    // Data    
+
+    // AppUi, not owned */
+    CXnAppUiAdapter& iAppUiAdapter;    
+    /** Light status observer, Owned */
+    CHWRMLight* iLightObserver;    
+    /** Publish&Subscribe observer for call state, Owned */
+    CXnPropertySubscriber* iCallStateObserver;       
+    /** MXnUiStateObservers, Not owned */
+    RPointerArray< MXnUiStateObserver > iUiStateObservers;
+    /** MXnUiResourceChangeObservers, Not owned */
+    RPointerArray< MXnUiResourceChangeObserver > iResourceChangeObservers;
+    /** Foreground status */
+    MXnUiStateObserver::TForegroundStatus iForegroundStatus;
+    /** Light status */
+    CHWRMLight::TLightStatus iLightStatus;
+    /** In-call state */
+    TBool iInCallState;
+    /** Last received foreground message */
+    TInt iForegroundType;
+    };
+
+#endif // XNUISTATELISTENER_H
+
+// End of file
+