/*

* Copyright (c) 2008-2008 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:   window server plugin, used by transition server to control

*                framebuffers.

*

*/

#ifndef __ALFSERVERDRAWER_H__

#define __ALFSERVERDRAWER_H__

#include <e32std.h>

#include <w32std.h>

#include <e32property.h>

#include "alfdrawerengine.h"

class CWsServerDrawerController;

class CIdle;

class RWsSession;

class CAlfWindowManager;

class CAlfWindow;

class CPolicyHandler;

class CAlfFinishTimer;

class CPSObserver;

/**

 *  crp used by the server to control framebuffers, and used as proxy for

 *  fullscreen messages.

 *

 *  @since S60 3.2

 */

 NONSHARABLE_CLASS(CAlfServerDrawer): public CBase, public MAlfDrawerEngine 

	{

public:

	static CAlfServerDrawer* NewL( CAlfWindowManager* aWindowManager,

	    CPolicyHandler& aPolicyHandler );

    enum TScreenModeChangedStates

        {

        EScreenModeChangedIdle,

        EScreenModeBeginHasBeenCalled,

        EScreenModeChangedWaitingForScreenUpdated

        };

    ~CAlfServerDrawer();

	TInt BeginControlTransition( TUint aAction, TUid aControlUid,

	    TInt aWindowGroup, TInt aWindowHandle );

	void EndControlTransition( TInt aHandle );

	void UnredirectEvent( TInt aHandle );

    void PrepareFullscreen();

    // parameters are analyzed by CAlfGfxEffects

    void BeginFullscreen( TInt aAction, const TRect& aEffectRect, 

						TInt aType, const TUid aUid1, const TUid aUid2, TInt aData );

    void EndFullscreen();

    void CancelFullscreen();

    void AbortFullscreen();

    void RegisterAlfFullScreenEffect( TInt aAction, const TDesC& aResourceDir,

            const TDesC& aFileName);

    void UnregisterAlfFullScreenEffect( TInt aAction );

    void UnregisterAllAlfFullScreenEffect();

    void BeginSyncronizedGroup(TInt aGroupId);

    void EndSyncronizedGroup(TInt aGroupId, TBool aForced = EFalse);

    /**

    * From MAlfDrawerEngine

    */

	TUid& FromUid();

	TUid& ToUid();

	TUint& Action();

	TInt& Flags();

	void IncreaseHandle();

	TInt CurrentHandle();

	void StartEndChecker();

	void CancelEndChecker();

	TInt SendBeginFullscreen(TInt aHandle, TUint aAction, const TUid& aUid, 

							 const TUid& aPreviousUid, const TRect& aEffectRect);

	TInt SendEndFullscreen();

	TInt SendAbortFullscreen();

	TInt SendAbortControlTransition();

	void SendBeginFullscreen();

    void DoSendBeginFullscreenL();

	TInt SendBeginControlTransition();

	TInt SendFinishControlTransition();

    TBool EffectFinishedFullScreen() const;

	static TInt FailedFullscreen(TAny* aArg);

    TBool ScreenModeChanged() const;

private:

	CAlfServerDrawer( CAlfWindowManager* aWindowManager, CPolicyHandler& aPolicyHandler );

	void ConstructL();

	static TInt AsyncConstruct(TAny* aThis);

	TAny* ResolveObjectInterface(TUint aTypeId);

private:

    static TInt ScreenModeChangedTimeoutL( TAny* aServerDrawer );

    void HandleScreenModeChangedTimeoutL();

    static TInt FullScreenTimeout( TAny* aServerDrawer );

    void HandleFullScreenTimeout();

    static TInt FinishFullScreenTimeout( TAny* aServerDrawer );

    void HandleFinishFullScreenTimeout();

    static TInt ControlTimeout( TAny* aServerDrawer );

    void HandleControlTimeout();

    static TInt TransitionFinished( TAny* aServerDrawer );

    void HandleTransitionFinished(); 

    TBool FileExistsL( TPtrC& aResourceDir, TPtrC& aFileName );

private: // data

public:

	CWsServerDrawerController* iController;

	CAlfWindowManager* iWindowManager;

    CPolicyHandler& iPolicyHandler;

	TBool iInScreenModeChange;

    CIdle* iIdle; //CIdle for async function calls.

    TInt iCurrHandle;

    TUint iAction;

    TUint iOldAction;

    TInt iFlags;

    TRect iEffectRect;

    TRect iControlRect; // demarcation rectangle for control effects

    TUid iFromUid;

    TUid iToUid;

    TInt iFromWg;

    TInt iToWg;

    TBool iWaitingForRootWgId;

    TInt iFromScreen;

    TInt iToScreen;

    TUid iParentUid;

    TInt iFocusWg;

    // Component transition data

    TUint iControlAction;

    TUid iControlUid;

    TInt iControlWindowGroup;

    TInt iControlHandle;

    TInt iType; // parameter type for GFX parameters

    TScreenModeChangedStates iScrModeChangedState;

    CAlfFinishTimer* iFullScreenTimeout;

    CAlfFinishTimer* iFinishFullScreen;

    // This variable tells if the full screen transition was finished

    // by a signal from Effect Engine (via AlfBridge)

    // or if timeout finished the transaction.

    TBool iFullScreenFinished;

    // This is an array of reserverd windows

    // We do not own these pointers, and must not delete them.

    RPointerArray<CAlfWindow> iReservedWindows;

    CPSObserver* iTransitionEndObserver;

    RProperty iProperty;

    TBool iDoNotClearEffectRect;

    RFs iFs;

    TBool iFullScreenFxSent;

    TBool iFullScreenEndSent;

    };

#endif //__ALFSERVERDRAWER_H__