/*

* Copyright (c) 2007 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:  Server and Session for AknCompaSrv

*

*/

#ifndef __AKNCOMPASERVER_H__

#define __AKNCOMPASERVER_H__

#include <e32base.h>

#include <w32std.h>

class CRepository;

// Needed for creating server thread.

const TUint KDefaultHeapSize=0x10000;

// Reasons for server panic

enum TAknCompaServerPanic

    {

    EBadRequest = 1,

    EBadDescriptor,

    EMainSchedulerError,

    ESvrCreateServer,

    ESvrStartServer,

    ECreateTrapCleanup

    };

// Reasons for client panic

enum TAknCompaServerClientPanic

    {

    EPanicClientNotAuthorized  = 1,

    };

/**

 * Window server event handler

 *

 * Reads events from window server event queue to keep it empty

 *

 * @since S60 v5.0

 */

class CAknCompaSrvWsEventHandler : public CActive

    {

public:

    CAknCompaSrvWsEventHandler(RWsSession& aWsSession);

    ~CAknCompaSrvWsEventHandler();

private: // New functions

    // Issue request to window server for events

    void IssueRequest();

private: // from CActive

    // Active object protocol

    void RunL();

    void DoCancel();

private:

    RWsSession& iWsSession;

    };

/**

 * CAknCompaServer server 

 *

 * @since S60 v5.0

 */

class CAknCompaServer : public CServer2

    {

public:

    static CServer2* NewLC();

    void AddSession();

    void DropSession();

    RWsSession& WsSession();

    // Function to panic the server

    static void PanicServer(TAknCompaServerPanic aPanic);

    static void PanicClient(const RMessage2& aMessage, TInt aPanic);

    static TBool IsGlobalUiSrv(const RMessage2& aMessage);

    static void SetThreadPriorityNormal(TAny* aUnused);

    static void SetThreadPriorityHigh();

    void DisaTransEffectsL(const RMessage2& aMessage);

    void RestoreTransEffectsL(const RMessage2& aMessage);

protected:

    CSession2* NewSessionL(const TVersion& aVersion,

        const RMessage2& aMessage) const;

    CAknCompaServer();

    ~CAknCompaServer();

    void ConstructL();

private:

    TInt iSessionCount;

    TBool iEffectsDisabled;

    RWsSession iWsSession;

    CRepository* iThemesCenRep; // repository to control transition effects

    CRepository* iAvkonCenRep;

    CAknCompaSrvWsEventHandler* iWsEventHandler;

    };

/**

 * Session to CAknCompaServer

 *

 * Provides a service to simulate key events for compa mode applications

 * that don't have swEvent capability.

 *

 * @since S60 v5.0

 */

class CAknCompaSrvSession : public CSession2

    {

public: // constructors and destructors

    CAknCompaSrvSession();

    void CreateL();

public: // services

    void SimulateKeyEventServiceL(const RMessage2& aMessage);

private:

    enum

        {

        // Allocate enough memory to hold all possible keys in the

        // key state array

        EKeyStateGranularity = 32

        };

    ~CAknCompaSrvSession();

    CAknCompaServer& Server();

    void SimulateKeyEvent(TInt aScancode, TBool aKeyDown);

    void CheckKeyDownPermissionL(const RMessage2& aMessage);

    // Service request

    void ServiceL(const RMessage2& aMessage);

    void DispatchMessageL(const RMessage2& aMessage);

private:

    RArray<TInt> iKeyState;

    TPtrC8 iValidScanCodes;

    };

#endif // __AKNCOMPASERVER_H__