1 /*

     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:   Implemetation of WebPointerEventHandler

    15 *

    16 */

    17 

    18 #ifndef __WEBPOINTEREVENTHANDLER_H__

    19 #define __WEBPOINTEREVENTHANDLER_H__

    20 

    21 #include <e32base.h>

    22 #include <w32std.h>

    23 #include "Timer.h"

    24 #include <rt_gesturehelper.h>

    25 

    26 namespace WebCore

    27 {

    28     class Node;

    29     class Element;

    30 };

    31 

    32 class WebView;

    33 class CActiveSchedulerWait;

    34 

    35 class WebPointerEventHandler : public CBase, public RT_GestureHelper::MGestureObserver

    36 {

    37 public:

    38     static WebPointerEventHandler* NewL(WebView* view);     

    39     void ConstructL();

    40     virtual ~WebPointerEventHandler();

    41 

    42 public:

    43     void HandlePointerEventL(const TPointerEvent& aPointerEvent);

    44     void HandleHighlightChange(const TPoint &aPoint);

    45 

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

    47     

    48     

    49 private:    

    50     bool checkForEventListener(WebCore::Node* node);

    51     bool canDehighlight(const TPoint &aPoint);

    52     void dehighlight();

    53 

    54     bool isHighlitableElement(TBrCtlDefs::TBrCtlElementType& elType);

    55     TBrCtlDefs::TBrCtlElementType highlitableElement();

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

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

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

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

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

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

    62     void doTapL();

    63     void updateCursor(const TPoint& pos);

    64 private:

    65     WebPointerEventHandler(WebView* view);            

    66     WebView* m_webview;

    67 

    68                

    69     TPointerEvent m_buttonDownEvent;

    70     TPointerEvent m_lastTapEvent;

    71     

    72     // Support for link highlight/dehighlight

    73     TBool m_isHighlighted;

    74     TInt m_offset;

    75     TPoint m_highlightPos;

    76     WebCore::Node* m_highlightedNode;

    77     TPointerEvent m_currentEvent;

    78     WebCore::Timer<WebPointerEventHandler> m_buttonDownTimer; 

    79     

    80     RT_GestureHelper::CGestureHelper* m_gestureHelper;

    81     TPointerEvent m_lastPointerEvent;

    82     bool   m_ignoreTap; 

    83     CActiveSchedulerWait*    m_waiter; 

    84     

    85 };

    86 

    87 

    88 

    89 #endif