// Copyright (c) 2006-2009 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:

// WsPointer and associated classes definitions

// 

//

#ifndef __POINTER_H__

#define __POINTER_H__

#include "server.h"

class CWsPointerTimer : public CTimer

	{

public:

	CWsPointerTimer();

	void ConstructL();

private:

	void RunL();

	};

class WsPointer

	{

	enum {EPointerUpdateGapInMicroSeconds=50000};

public:

	static void InitStaticsL();

	static void DeleteStatics();

	static inline TPointerCursorMode PointerCursorMode();

	static inline void SetPointerCursorMode(TPointerCursorMode aMode);

	static inline TPoint PointerCursorPos();

	static void SetPointerCursorPos(TPoint aPos);

	static void ReLogCurrentWindow();

	static void ReLogCurrentWindow(TPoint &aPos, TPoint &aParentPos, const CWsWindowGroup *aForceInGroup);

	static void ReLogWindow(const CWsWindow *aWin);

	static void WindowDisconected(const CWsWindow *deletedWindow);

	static void ClaimGrab(const CWsWindow *aWindow, TBool aSendUpEvent);

#if defined(__WINS__)

	static TBool PreProcessEvent(TRawEvent &aRawEvent,TBool aFromHardware=EFalse);

#else

	static TBool PreProcessEvent(TRawEvent &aRawEvent);

#endif

	static void ProcessEvent(TPointerEvent::TType type, const TPoint &aPos, TUint aModifiers

																				,const CWsWindowGroup *aForceInGroup,TBool aNatural);

	static void GetDoubleClickSettings(TTimeIntervalMicroSeconds32 &aTime, TInt &aDistance);

	static void SetDoubleClick(const TTimeIntervalMicroSeconds32 &aTime, TInt aDistance);

	static void UpdatePointerCursor();

	static void RequestPointerRepeatEvent(CWsWindow *aWindow, TTimeIntervalMicroSeconds32 aTime,const TRect &aRect);

	static void CancelPointerRepeatEventRequest();

	static void RepeatTimerCompleted();

	static TEventQueueWalkRet PointerRepeatPurgeCheck(const TWsEvent *aEvent);

	static void UnmatchedDownPurged(TPointerEvent::TType aPointerType, TUint aHandle);

	static void TimerExpired();

	static inline TBool XyInput();

#if defined(__WINS__)

	static void SetXyInputType(TXYInputType aXyInputType);

#endif

private:

	static void PointerCursorUpdateCheck();

	static void ProcessForegroundCheck();

	static void RestrictPos(TPoint& aPos,TBool aWithinDrawableArea=ETrue);

	static void ProcessEvent(TWsEvent& aEvent);

	static TBool PointerEventRepeatCheck(const TWsEvent *aEvent, TUint32 aHandle);

	static void SendEnterExitEvent(TEventCode aType);

	static void SetCurrentWindow(const CWsWindow *aWin);

	static void ProcessPointerEvent(TWsEvent& aEvent);

	static TBool QueuePointerEvent(const CWsWindow *aWindow, TWsEvent &event);

	static TBool CheckDownEventPurged(TPointerEvent::TType aType);

	static void UpdatePointerCursorTo(CWsPointerCursor* aNewCursor);

	static CWsPointerCursor* CalculatePointerCursor();

	static inline TBool MovesAvailable();

	static inline TBool DeltaMouse();

private:	

	static TPoint iCurrentPos;

	static TBool iPointerDown;	// Maps onto button1 down on multi button systems

	static TXYInputType iXyInputType;

	static const CWsWindow *iCurrentWindow;

	static const CWsWindow *iGrabWindow;

	static const CWsWindow *iActualWinPointerIsOver;

	static const CWsWindow *iPrevClickWindow;

	static TPoint iPrevClickPos;

	static TTime iPrevClickTime;

	static TPointerEvent::TType iPrevClickEventType;

	static TTimeIntervalMicroSeconds32 iDoubleClickMaxInterval;

	static TInt iDoubleClickMaxDistance;

	static CWsPointerCursor *iCursorSprite;

	static CWsPointerTimer *iRepeatTimer;

	static TPointerCursorMode iPointerCursorMode;

	static CWsWindow *iRepeatWindow;

	static TRect iRepeatRect;

	static TUint iLastUnmatchedDown1;

	static TUint iLastUnmatchedDown2;

	static TUint iLastUnmatchedDown3;

	static TBool iTimerQueued;

	static TBool iUpdateRequired;

	static CPeriodic *iPeriodicTimer;

	static CWsRootWindow* iRootWindow;	// uses

	};

class CWsPointerBuffer : public CBase

	{

public:

	~CWsPointerBuffer();

	static void ConnectL(CWsClientWindow *aWindow, TInt aMaxPoints, TUint aFlags);

	static void Disconnect(CWsClientWindow *aWindow);

	static void PointerEvent(CWsClientWindow *aWindow,const TPoint &aPoint);

	static void RetrievePointerMoveBuffer(CWsClientWindow *aWindow,TInt aMaxPoints);

	static void DiscardPointerMoveBuffer(CWsClientWindow *aWindow);

	static void DiscardPointerMoveBuffer(TUint aHandle);

private:

	static void AdjustMaxSizeL();

	static void Reset();

	static void SignalBufferReady();

private:

	CWsClientWindow *iWindow;

	TInt iMaxPoints;

	TInt iFlags;

	TSglQueLink iQue;

	static TBool iSignalled;

	static CWsPointerBuffer *iCurrentBuffer;

	static CCirBuf<TPoint> *iPointerBuffer;

	static TSglQue<CWsPointerBuffer> iList;

	};

inline void WsPointer::SetPointerCursorMode(TPointerCursorMode aMode)

	{

	iPointerCursorMode=aMode;

	}

inline TPointerCursorMode WsPointer::PointerCursorMode()

	{

	return iPointerCursorMode;

	}

inline TPoint WsPointer::PointerCursorPos()

	{

	return iCurrentPos;

	}

inline TBool WsPointer::XyInput()

	{

	return iXyInputType!=EXYInputNone;

	}

inline TBool WsPointer::MovesAvailable()

	{

	return (iXyInputType!=EXYInputNone && iXyInputType!=EXYInputPointer);

	}

inline TBool WsPointer::DeltaMouse()

	{

	return (iXyInputType==EXYInputDeltaMouse);

	}

#endif