--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/webkitutils/stmgesturefw/inc/gestureengine.h	Wed Sep 01 12:28:30 2010 +0100
@@ -0,0 +1,111 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:   
+*
+*/
+
+#ifndef GESTUREENGINE_H_
+#define GESTUREENGINE_H_
+
+#include <coemain.h>
+#include <e32property.h>
+#include <w32std.h>
+
+#include "rt_gestureengineif.h"
+#include "rt_uievent.h"
+
+namespace stmGesture
+{
+
+/*!
+ * CGEstureEngine handles the processing of the UI events.
+ * It acts as a stmUiEventEngine::MUiEventObserver to receive the UI events.
+ * The gesture recognisers are stored in a list, and at each HandleUiEventL the
+ * list of gesture recognisers is processed.  The first one to return EGestureActive
+ * from the recognise method "owns" the gesture.  If some other recogniser owned it
+ * previously, its release method is called. Gesture recogniser can also lock the gesture
+ * by returning ELockToThisGesture. Then only that gesture recogniser will be called
+ * until release is detected or the recogniser returns something else than ELockToThisGesture.
+ */
+NONSHARABLE_CLASS( CGestureEngine ): public CBase, 
+                                     public MGestureEngineIf, 
+                                     public stmUiEventEngine::MUiEventObserver
+{
+public:
+    CGestureEngine();
+    virtual ~CGestureEngine();
+
+    /*!
+     *  add gesture to the end of the list of gestures
+     */
+    virtual bool addGesture(const MGestureRecogniserIf* aNewGesture) ;
+    /*!
+     * inset a gesture to the beginning of the list of gestures
+     */
+    virtual bool insertGesture(const MGestureRecogniserIf* aNewGesture) ;
+    /*!
+     * inset a gesture to the specific position
+     */
+    virtual bool insertGestureAt(const MGestureRecogniserIf* aNewGesture, int position) ;
+    /*!
+     * remove a gesture from the list
+     */
+    virtual bool removeGesture(const MGestureRecogniserIf* aOldGesture) ;
+    /*!
+     * get the number of non-empty event streams.
+     * Event streams correspond UI events generated by one touch pointer (=finger).
+     * The low level state machine handles the necessary filtering etc.
+     * so that it is safe to remove the event stream after UI Release event has been processed.
+     */
+    virtual int activeStreamCount() const ;
+    /*!
+     * get the UI events of stream X
+     * \param indexOfActiveStream defines which active stream is used.
+     * Note that MUiEvent contains all the events from down up to the current event.
+     * Assumption: the UI events contain the target "window handle", i.e.
+     * the gesture recognition needs to be aware of all possible windows of the application.
+     */
+    virtual const stmUiEventEngine::MUiEvent* getUiEvents(int indexOfActiveStream) const ;
+	/*!
+	 * enable/disable logging
+	 */
+	virtual void enableLogging(bool aLoggingEnabled) {m_loggingEnabled = aLoggingEnabled;} ;
+	/*!
+     * The stmUiEventEngine::MUiEventObserver interface
+     */
+    virtual void HandleUiEventL( const stmUiEventEngine::MUiEvent& aEvent ) ;
+private:
+    /*!
+     * The list of available gesture recognisers
+     */
+    RPointerArray< MGestureRecogniserIf >  m_gestures;
+    /*!
+     * Is 5 UI event streams enough?  Jos tulee Torvisen voittaja?
+     * We need to store only the latest event since the interface has
+     * methods to walk trough the events. The current (sept 2009) 9.2 seems to have dual-touch support  
+     */
+    const stmUiEventEngine::MUiEvent* m_uiEventStream[stmUiEventEngine::KMaxNumberOfPointers] ;
+
+    void storeUiEvent(const stmUiEventEngine::MUiEvent& aEvent) ;
+    void walkTroughGestures() ;
+    void updateUiEvents() ;
+    int m_numOfActiveStreams ;
+    int m_currentGestureOwner ;
+    int m_currentLockedGesture ;
+	bool m_loggingEnabled ;
+};
+
+}
+
+#endif /* GESTUREENGINE_H_ */