/*

* 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 "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:   internal for Nokia

*

*/

#include <s32mem.h>

#include <akntranseffect.h>

#include "alfbridge.h"

// Timer to send finish full screen effect

// ---------------------------------------------------------

// CAlfFinishTimer

// ---------------------------------------------------------

//

NONSHARABLE_CLASS( CAlfRosterFreezeEndTimer ):public CTimer

    {

    public:  // Constructors and destructor

        static CAlfRosterFreezeEndTimer* NewL( CAlfBridge& aBridge );

        virtual ~CAlfRosterFreezeEndTimer();

    public: // New functions

        void Start( TTimeIntervalMicroSeconds32 aPeriod, TCallBack aCallBack  );

    protected:  // Functions from base classes

        void DoCancel();

    private:

        CAlfRosterFreezeEndTimer( CAlfBridge& aBridge );

        void ConstructL();

        void RunL();

    private:    // Data

        CAlfBridge& iBridge;

 	public:

	   	TInt iSafeCounter;

        TCallBack iCallBack;        

    };

// Timer to send finish full screen effect

// ---------------------------------------------------------

// CAlfFinishTimer

// ---------------------------------------------------------

//

NONSHARABLE_CLASS( CAlfEffectEndTimer ):public CTimer

    {

    public:  // Constructors and destructor

        static CAlfEffectEndTimer* NewL( CAlfBridge& aBridge );

        virtual ~CAlfEffectEndTimer();

    public: // New functions

        void Start( TTimeIntervalMicroSeconds32 aPeriod );

        void AddFinishedHandleL(TInt aHandle);

    protected:  // Functions from base classes

        void DoCancel();

    private:

        CAlfEffectEndTimer( CAlfBridge& aBridge );

        void ConstructL();

        void RunL();

    private:    // Data

        CAlfBridge& iBridge;

        RArray<TInt> iHandles;

    };

// ---------------------------------------------------------

// CAlfLayoutSwitchEffectcoordinator

// ---------------------------------------------------------

//

NONSHARABLE_CLASS( CAlfLayoutSwitchEffectCoordinator ) : public CBase, public MAlfGfxEffectObserver

    {

    public:

        enum TEvent

            {

            EEventLayoutSwitch,

            EEventBlankOn,

            EEventBlankOff,

            EEventLowMemory

            };

        enum TState

            {

            EStateIdle,

            EStateFreezeFx,

            EStateBlankFx,

            EStateThemeFx

            };

        typedef TState (*TStateFunction)(TEvent aEvent);

    public:  // Constructors and destructor

        CAlfLayoutSwitchEffectCoordinator( CAlfBridge& aBridge );

        virtual ~CAlfLayoutSwitchEffectCoordinator();

    public: // MAlfGfxEffectObserver           

        void AlfGfxEffectEndCallBack( TInt aHandle );

    public:

        void Blank(TBool aEnabled);

        void LowMemoryEvent();

        void BeginLayoutSwitch();

        void Event(TEvent aEvent);

        void Transition(TState aNewState, TState aPreviousState);

    private:

        TState NextIdleState(TEvent aEvent);

        TState NextFreezeState(TEvent aEvent);

        TState NextBlankState(TEvent aEvent);

        TState NextThemeState(TEvent aEvent);

        void FreezeFinished();

    public:            

        TBool IsThemeEffectEnabled() const;

        TBool LayoutSwitchEffectsExist() const;

		void EnableSafeCounter(TBool aEnable)

			{

			if (iRosterFreezeEndTimer)

				{

				if (aEnable)

					{

					iRosterFreezeEndTimer->iSafeCounter = 0;

					}

				else

					{

					iRosterFreezeEndTimer->iSafeCounter = KErrNotFound;

					}

				}

			}        

    private:

        AknTransEffect::TContext NextLayoutSwitchContext();

        void SetLayoutSwitchEffect(AknTransEffect::TContext aContext);

        void FreezeRoster(TBool aFrozen);

        static TInt DoFreezeFinished(TAny* aAny);

    private: // Data

        CAlfBridge& iBridge;

        AknTransEffect::TContext iLayoutSwitchEffectContext;

        TThreadPriority iOriginalPriority;

        CAlfRosterFreezeEndTimer* iRosterFreezeEndTimer;

        TBool iBlankEnabled;

        TState iCurrentState;

        TBool iLayoutSwitchNotCompleted;

	};

// ---------------------------------------------------------

// Effects states are used for effects request that arrive before the effected 

// window has been created. This is very common with fullscreen effects and 

// occational with control effects.

//

// NOTE: control effects support currently only one "delayed" effect. This is propably

//       not sufficient for all sitations.

// ---------------------------------------------------------

//

NONSHARABLE_CLASS(CEffectState) : public CBase

        {

    public:    

        CEffectState();

        virtual ~CEffectState();

    protected:

       /**

        * ResolveFileNameL

        *

        * Reads filename from stream and composes it to iEffectName variable.

        */

         void ResolveFileNameL(RMemReadStream& aStream);

    public:

         TInt iAction;

         TInt iHandle;

         HBufC* iEffectName;

         // Handle using which client should be informed of completion.

         TInt iCompletionHandle;

         // State information

         TInt iOperation;

        };

    NONSHARABLE_CLASS(CControlEffectState ) : public CEffectState

        {

    public:

        TUint32 iClientHandle;

        TUint32 iClientGroupHandle;

        void ConstructL(TInt aAction, RMemReadStream& aStream);

        };

    NONSHARABLE_CLASS(CFullScreenEffectState ) : public CEffectState

        {

    public:

        ~CFullScreenEffectState();

        void ConstructL(TInt aAction, RMemReadStream& aStream);

        // Information from BeginFullScreen

        TInt iType;

        TInt iToWg;

        TInt iFromWg;

        TInt iToAppId;

        TInt iFromAppId;

        TInt iToSecureId;

        TInt iFromSecureId;

        TRect iRect;

        // ETrue if waiting for window group to appear

        TBool iWaitingWindowGroup;

        // ETrue if end fullscreen has been performed

        TBool iEndFullScreen;

        // ETrue if setup effect container has been done

        TBool iSetupDone;

        // used for resolving the iCleanupStackItem that holds the frozen app layout underneath the starting application

        TInt iAppStartScreenshotItemHandle;

        enum TEffectType

        {

            ENotDefinedEffect = 0,

            EStartEffect,

            EExitEffect

        };

        TEffectType iEffectType;

        // Display dimension, iPaintedRegion is clipped to this when determining, if there is enough drawing to the group

        TSize iDisplaySize;

        // gathers the painted region for the effected application. When enough region has been painted, the effect is forced.

        RRegion iPaintedRegion;

        CAlfBridge* iBridge; // for callback. not own.

        // If the visual is shown by some other visual by a screenshot, this is set ETrue.

        TBool iCanDestroyOrHideImmediately;

        CPeriodic* iDrawingCompleteTimer;

        };