--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/webkitutils/stmgesturefw/src/updowngesturerecogniser.cpp	Tue Feb 02 00:56:45 2010 +0200
@@ -0,0 +1,94 @@
+/*
+* 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:  Gesture helper implementation
+*
+*/
+
+#include "updowngesturerecogniser.h"
+#include "GenericSimpleGesture.h"
+#include "rt_uievent.h"
+
+#include "filelogger.h"
+
+using namespace stmGesture ;
+
+_LIT8(KUpdownName, "Updown") ;
+
+CUpdownGestureRecogniser::CUpdownGestureRecogniser(MGestureListener* aListener) : 
+        CGestureRecogniser(aListener)
+{
+}
+
+CUpdownGestureRecogniser* CUpdownGestureRecogniser::NewL(MGestureListener* aListener)
+{
+    CUpdownGestureRecogniser* self = new (ELeave) CUpdownGestureRecogniser(aListener) ;
+    return self;
+}
+
+CUpdownGestureRecogniser::~CUpdownGestureRecogniser()
+{
+}
+
+TGestureRecognitionState CUpdownGestureRecogniser::recognise(int numOfActiveStreams,
+        MGestureEngineIf* pge)
+{
+    TGestureRecognitionState state = ENotMyGesture;
+    // Check if we are enabled or not
+    if (!m_gestureEnabled) return state ;
+
+    // Look at the events to see if it looks like a tap or double tap
+    if (numOfActiveStreams == 1)
+    {
+        // Then look at the event stream, it has to be tap and release
+        const stmUiEventEngine::MUiEvent* puie = pge->getUiEvents(0);
+        int countOfEvents = puie->countOfEvents() ;
+        stmUiEventEngine::TUiEventCode eventCode = puie->Code() ;
+        if (countOfEvents > 1) // do we have more than one event in the stream?
+        {
+            // Then look at the events to see if they are suitable for us
+            // should we check that all of the events are targeted to our window?
+            // currently we only check if the last one is for us and is EMove, then check if |x| > |y|
+            if (puie->Target() == m_powner &&
+                    eventCode == stmUiEventEngine::EMove) // The last one is move in our window
+
+            {
+                if (m_loggingenabled)
+                {
+                    LOGARG("CUpdownGestureRecogniser: UpDown: num %d code %d", 
+                            countOfEvents, eventCode);
+                }
+                // Is it leftright gesture in our window?
+                const TPoint& p = puie->CurrentXY() ;
+                TPoint dp = p - puie->PreviousXY() ;
+                // check that the Y movement is bigger
+                if (Abs(dp.iX) < Abs(dp.iY))
+                {
+                    state = EGestureActive;
+                    stmGesture::TGenericSimpleGesture pgest(KUid, p, dp.iY, puie) ;
+                    // Give the gesture a name
+                    pgest.setName(KUpdownName) ;
+                    // Call the listener to inform that a UpDown has occurred...
+                    m_listener->gestureEnter(pgest) ;
+                }
+            }
+        }
+    }
+    return state;
+}
+
+void CUpdownGestureRecogniser::release(MGestureEngineIf* /*ge*/)
+{
+    m_listener->gestureExit(KUid) ;
+}
+