/*

* 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:   Implemetation of WebPointerEventHandler

*

*/

#ifndef __WEBPOINTEREVENTHANDLER_H__

#define __WEBPOINTEREVENTHANDLER_H__

#include <e32base.h>

#include <w32std.h>

#include "Timer.h"

#include <rt_gesturehelper.h>

namespace WebCore

{

    class Node;

    class Element;

};

class WebView;

class CActiveSchedulerWait;

class WebPointerEventHandler : public CBase, public RT_GestureHelper::MGestureObserver

{

public:

    static WebPointerEventHandler* NewL(WebView* view);     

    void ConstructL();

    virtual ~WebPointerEventHandler();

public:

    void HandlePointerEventL(const TPointerEvent& aPointerEvent);

    void HandleHighlightChange(const TPoint &aPoint);

    virtual void HandleGestureL( const RT_GestureHelper::MGestureEvent& aEvent );

private:    

    bool checkForEventListener(WebCore::Node* node);

    bool canDehighlight(const TPoint &aPoint);

    void dehighlight();

    bool isHighlitableElement(TBrCtlDefs::TBrCtlElementType& elType);

    TBrCtlDefs::TBrCtlElementType highlitableElement();

    void buttonDownTimerCB(WebCore::Timer<WebPointerEventHandler>* t);

    void handleTouchDownL(const RT_GestureHelper::MGestureEvent& aEvent);

    void handleTouchUp(const RT_GestureHelper::MGestureEvent& aEvent);

    void handleTapL(const RT_GestureHelper::MGestureEvent& aEvent);

    void handleDoubleTap(const RT_GestureHelper::MGestureEvent& aEvent);

    void handleMove(const RT_GestureHelper::MGestureEvent& aEvent);

    void doTapL();

    void updateCursor(const TPoint& pos);

private:

    WebPointerEventHandler(WebView* view);            

    WebView* m_webview;

    TPointerEvent m_buttonDownEvent;

    TPointerEvent m_lastTapEvent;

    // Support for link highlight/dehighlight

    TBool m_isHighlighted;

    TInt m_offset;

    TPoint m_highlightPos;

    WebCore::Node* m_highlightedNode;

    TPointerEvent m_currentEvent;

    WebCore::Timer<WebPointerEventHandler> m_buttonDownTimer; 

    RT_GestureHelper::CGestureHelper* m_gestureHelper;

    TPointerEvent m_lastPointerEvent;

    bool   m_ignoreTap; 

    CActiveSchedulerWait*    m_waiter; 

};

#endif