diff -r f7f0874bfe7d -r 74c9f037fd5d ui/viewmanagement/statehandler/inc/glxbasestate.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/viewmanagement/statehandler/inc/glxbasestate.h	Fri Mar 19 09:28:59 2010 +0200
@@ -0,0 +1,90 @@
+/*
+* Copyright (c) 2009 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:   ?Description
+*
+*/
+
+
+
+#ifndef GLXBASESTATE_H
+#define GLXBASESTATE_H
+
+#include <QObject>
+#include <glxviewids.h>
+#include <glxuistd.h>
+
+typedef enum
+{
+    NO_DIR,
+    FORWARD_DIR,
+    BACKWARD_DIR,    
+}NavigationDir;
+
+class GlxState : public QObject
+{
+    Q_OBJECT
+
+public :
+ /*
+  * Constructor
+  * id = state id, state is and view id should be same
+  * preState = previous state pointer. It value will be null, if it is only one state in the stack
+  */
+	GlxState(qint32 id, GlxState *preState);
+	virtual ~GlxState();
+/*
+ * It compare the states.
+ * ToDo: It is not used any where so may be removed later
+ */	
+	bool compare (qint32 id) const;
+/*
+ * Return the state id of the function
+ */ 
+	qint32 id() const { return mId; }
+/*
+ * Retrun the pointer of the the previous state
+ */ 
+	GlxState * previousState( ) const { return mPreState; }
+/*
+ * Pure virtual function. It is default event handler of the state
+ */	
+	virtual void eventHandler(qint32 &id)  = 0;
+/*
+ * This funtion use for set the internal state of a state
+ * default implementation
+ */	
+	virtual void setState(int internalState) {Q_UNUSED( internalState )}
+/*
+ * This funtion return the internal state of a state
+ * default implementation
+ */
+	virtual int state( ) const { return 0; }
+/*
+ * This function set the view transtion effect parameter.
+ * These values is use for run the animation for vies transtion
+ * In the case of forward direction it should call with the next state and in the case of back ward direction
+ * it should call with the current state
+ * effect = View transtion id
+ * viewEffect = to play the animation on which views
+ */	
+	virtual void setTranstionParameter(NavigationDir dir, GlxEffect &effect, GlxViewEffect &viewEffect);
+
+private:
+    const qint32 mId;
+    GlxState *mPreState; //contain the pointer of previous state	
+};
+
+
+
+#endif /* GLXBASESTATE_H */