/*

* Copyright (c) 2002-2008 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:  Defines the public client side interface class to access the

                 Skin Server and the skin change observer class to listen for

                 skin changes in the system.

*

*/

#ifndef AKNSSRVCLIENT_H

#define AKNSSRVCLIENT_H

//  INCLUDES

#include <e32base.h>

#include <badesca.h>

#include <AknsItemDef.h>

#include <AknsItemID.h>

#include <AknsSrvSkinInformationPkg.h>

#include "AknsSrvChunkLookup.h"

// DATA TYPES

/**

* Reasons for panicing client thread.

*

* @since 2.0

*/

enum TAknSkinSrvPanic

    {

    EAknsSrvBadRequest              = 0,

    EAknsSrvNotConnected            = 2,

    EAknsSrvNotifyHandlerMissing    = 3,

    EAknsSrvNoActiveScheduler       = 4,

    EAknsSrvCannotCreateSharedChunk = 6,

    EAknsSrvBadAlignment            = 8,

    EAknsSrvFatalMergeFailure       = 10,

    EAknsSrvCannotAdjustChunk       = 12,

    EAknsSrvTooManyItemDefs         = 14,

    EAknsSrvCannotRestoreDefaults   = 16,

    EAknsSrvNotifyListImbalance     = 18,

    EAknsSrvInvalidMessageHandle    = 20,

    EAknsSrvInvalidBuildConf        = 22,

    EAknsSrvFatalDRMFailure         = 24

    };

enum TAknsSrvInifileType

    {

    EAknsSrvInifileSSWP,

    EAknsSrvInifileSSSS,

    };

enum TAknsSrcScreenMode

   {

   EAknsSrcScrModeNone      = 0,

   EAknsSrvScrModePortrait  = 1,

   EAknsSrvScrModeLandscape = 2,

   EAknsSrvScrModeSquare    = 3

   };

/**

* Skin server panic category string.

*

* @since 2.0

*/

_LIT( KAknSkinSrvPanicCategory, "AknSkinServer" );

/**

* Enumeration of skin item definition classes.

*

* @since 2.0

*/

enum TAknsItemDefClass

    {

    /**

    * Skin item definition class enumeration value for bitmaps,

    * including layout backgrounds but excluding application icons.

    */

    EAknsItemDefClassBitmaps = 1,

    /**

    * Skin item definition class enumeration value for application icons.

    */

    EAknsItemDefClassAppIcons = 2,

    /**

    * Skin item definition class enumeration value for color sets.

    */

    EAknsItemDefClassColorSets = 4

    };

/**

* Skin package change reason codes used by

* @c MAknsSkinChangeObserver::SkinPackageChanged

*

* @since 2.5

*/

enum TAknsSkinStatusPackageChangeReason

    {

    /**

    * Enumeration value that indicates change in skin package list.

    *

    * @since 2.5

    */

    EAknsSkinStatusPackageListUpdate        = 1

    };

/**

* Skin configuration change reason codes used by

* @c MAknsSkinChangeObserver::SkinConfigurationChanged

*

* @since 2.5

*/

enum TAknsSkinStatusConfigurationChangeReason

    {

    /**

    * Enumeration value that indicates completion of skin content merge,

    * i.e. the new configuration is available for reading.

    *

    * @since 2.5

    */

    EAknsSkinStatusConfigurationMerged      = 1,

    /**

    * Enumeration value that indicates completion of event propagation

    * to clients, i.e. the new configuration has been deployed to

    * the registered clients.

    *

    * @since 2.5

    */

    EAknsSkinStatusConfigurationDeployed    = 2,

    /**

    * Enumeration value that indicates unsuccessful completion of

    * skin activation because of an out-of-memory condition.

    *

    * @since 2.5

    */

    EAknsSkinStatusConfigurationFailedOOM   = 3,

    /**

    * Enumeration value that indicates unsuccessful completion of

    * skin activation because of a corrupted skin package.

    *

    * @since 2.5

    */

    EAknsSkinStatusConfigurationFailedCorrupt = 4,

    /**

    * Enumeration value that indicates a change in the

    * state of the morphing skin items

    *

    * @since 3.0

    */

    EAknsSkinStatusMorphingStateChange = 5,

    EAknsSkinStatusWallpaperChanged = 6,

    /**

    * Enumeration value that indicates a change in the

    * state of animation Background

    *

    * @since 5.2

    */    

    EAknsSkinStatusAnimBackgroundChanged = 7,

	EAknsSkinStatusSlideSetWallpaperChanged = 8

    };

// CONSTANTS

_LIT( KAknsSrvRAMBitmapName, "RAM:BmpHandle");

// CLASS DECLARATION

/**

* An user implementable interface class to handle the skin change

* notifications.

*

* @since 2.0

*/

class MAknsSkinChangeObserver

    {

    public:

        /**

        * Called by the skin server when skin content is changed and the

        * connected client wants to be informed.

        *

        * @since 2.0

        */

        virtual void SkinContentChanged() = 0;

        /**

        * Called by the skin server to indicate that the current skin

        * configuration has changed.

        *

        * @param aReason Reason code.

        *

        * @since 2.5

        */

        virtual void SkinConfigurationChanged(

            const TAknsSkinStatusConfigurationChangeReason aReason ) = 0;

        /**

        * Called by the skin server to indicate that the available

        * skin packages have changed.

        *

        * @param aReason Reason code.

        *

        * @since 2.5

        */

        virtual void SkinPackageChanged(

            const TAknsSkinStatusPackageChangeReason aReason ) = 0;

        /**

        * Called by the skin server to ask for local cache cleanup.

        *

        * @since 3.1

        *

        */

        virtual void FlushLocalCaches() {};

    };

// FORWARD DECLARATIONS

class CAknsSkinChangeHandler;

struct TAknsSrvClientMemberData;

// CLASS DECLARATION

/**

* The client side interface class for the skins server

* Provides functionality to change the system skin, to retrieve skin content

* definitions from the server and to listen for skin change events.

*

* @lib AknSkinSrv.lib

*

* @since 2.0

*/

class RAknsSrvSession : public RSessionBase

    {

    public:

        /**

        * C++ default constructor.

        */

        IMPORT_C RAknsSrvSession();

        /**

        * Starts the server if it's not allready started and creates a new

        * session.

        *

        * @since 2.0

        *

        * @param aObserver Skin change observer.

        * @param aPriority Observer priority.

        *

        * @return KErrNone if connection was succesfull, or otherwise one of

        *   the standard system wide error codes.

        */

        IMPORT_C TInt Connect( MAknsSkinChangeObserver* aObserver = NULL,

            TInt aPriority = CActive::EPriorityStandard );

        /**

        * Closes the session.

        *

        * @since 2.0

        *

        */

        IMPORT_C void Close(); //lint !e1511 Hiding allowed

        /**

        * Enables the servers skin change notifications mechanism. If the skin

        * definitions have changed, or there are pending notification events,

        * SkinContentChanged() is called for all sessions.

        * The function affects all sessions.

        *

        * @since 2.0

        *

        */

        IMPORT_C void EnableSkinChangeNotify();

        /**

        * Disables the servers skin change notification mechanism. After this

        * call no notification events are generated until a subsequent

        * EnableSkinChangeNotify() is called. The function affects all sessions.

        *

        * @since 2.0

        *

        */

        IMPORT_C void DisableSkinChangeNotify();

        /**

        * Notifies the server that the skin client has encountered an error

        * while doing a skin change. After this call the server falls back to

        * the system default skin and ignores any calls to this funcion to

        * avoid infite loop.

        *

        * @since 2.0

        *

        * @param aErrorCode Error code.

        */

        IMPORT_C void ClientError(TInt aErrorCode = 0);

        /**

        * Sets all the active item definition sets (including all the classes).

        * Item definition sets of the skin with the given package ID are

        * activated and clients are notified about the skin change.

        *

        * @since 2.0

        *

        * @param aPID Package ID of the skin to be activated.

        *

        * @return KErrNone if succesfull or one of the system wide error codes.

        */

        IMPORT_C TInt SetAllDefinitionSets( const TAknsPkgID aPID );

        /**

        * Retrieves skin information for all the available skins packages

        * in specified location. After a call to this function, the ownewship

        * of the array and the items in it is transferred to the caller.

        *

        * @since 2.0

        *

        * @param aLocation the location from where to look for the skin

        *   packages. Default value is phone (i.e., c and z drives).

        *

        * @return A pointer to an array containing pointers to

        *   CAknsSrvSkinInformationPkg instances, or an empty array if no skin

        *   packages were found in the specified location. If the same skin

        *   was found multiple times, only the first match is included in the

        *   array.

        *

        * @par Exceptions:

        *   If enumeration failed, method leaves with an error code.

        */

        IMPORT_C CArrayPtr<CAknsSrvSkinInformationPkg>*

            EnumerateSkinPackagesL(

            TAknSkinSrvSkinPackageLocation aLocation = EAknsSrvPhone );

        /**

        * Creates a chunk lookup object.

        *

        * @since 2.0

        *

        * @return Newly created chunk lookup object.

        *

        * @par Exceptions:

        *   If construction fails, method leaves with an error code.

        */

        IMPORT_C CAknsSrvChunkLookup* CreateChunkLookupL();

        /**

        * Sets the idle state wallpaper.

        *

        * @since 2.0

        *

        * @param aFilename a fully qualified path(incl. path + filename)

        *   to the mbm file containing the wallpaper

        * @param aIndex the index of the bitmap in the mbm file

        * @param aMaskIndex the index of the mask bitmap in the mbm file

        *

        * @return If the call fails, one of the system wide error codes is

        *   returned.

        */

        IMPORT_C TInt SetIdleWallpaper(const TDesC& aFilename);

        /**

        * Stores a duplicate of the given bitmap (optionally with mask).

        *

        * @param aIID Item ID used as a key.

        *

        * @param aType Layout type used as a key.

        *

        * @param aBmp Pointer to a bitmap. Must be non-NULL. No ownership

        *   is transferred.

        *

        * @param aMask Pointer to a mask, or @c NULL. No ownership is

        *   transferred.

        *

        * @since 2.8

        */

        IMPORT_C TInt StoreScalableGraphics(const TAknsItemID& aIID,

            const TInt aType, const TSize& aLayoutSize, const CFbsBitmap* aBmp,

            const CFbsBitmap* aMask, TBool aMorphing = EFalse );

        /**

        * Instructs the server to cleanup any stored layout bitmaps.

        *

        * @return Error code.

        *

        * @since 2.8

        */

        IMPORT_C TInt ClearScalableGraphics();

        /**

        * Acknowledges the skin change notification.

        *

        * @return Error code.

        *

        * @since 2.7

        */

        TInt AcknowledgeSkinChangeNotification();

        IMPORT_C TInt DeleteSkin(const TAknsPkgID aPID, TAknSkinSrvSkinPackageLocation aLocation );

        IMPORT_C TInt CopySkin(const TAknsPkgID aPID, TAknSkinSrvSkinPackageLocation aSourceLocation, TAknSkinSrvSkinPackageLocation aDestLocation);

        IMPORT_C TInt OpenBitmapFile( const TDesC& aFilename, TInt &aFileHandle);

        IMPORT_C TInt OpenInifile(const TAknsPkgID aPID, TAknSkinSrvSkinPackageLocation aLocation, TInt& aFilehandle, TBool aWriteToFile);

        IMPORT_C TInt CopySoundFile(const TDesC& aSourceFilename, const TDesC& aTargetFilename);

        IMPORT_C void DecodeWallpaperImageL(const TDesC& aFilename, const TSize& aTargetSize, CFbsBitmap*& aBitmap, CFbsBitmap*& aMask);

        IMPORT_C TInt OpenImageInifile(TAknsSrvInifileType aType, TInt& aFilehandle);

        IMPORT_C TInt SetSlideSetWallpaper(const CDesCArray& aFilenameArray);

#if defined(RD_SLIDESHOW_WALLPAPER)

        void DoWriteInifileL(const CDesCArray& aFilenameArray);

#endif

        IMPORT_C void FreeUnnecessaryLayoutBitmaps(TAknsSrcScreenMode aMode);

        /*

        * Checks if AppArc has been configured using CenRep for this application UID. If so, skinned icon graphics are NOT

        * created when calling AknsUtils::CreateAppIconLC. Instead, configured icon (which is defined in the 

        * AppArc's CenRep file) is used. Note that icon configuration can wary depending on active language.

        *

        * @since 5.0

        *

        * @param aAppUid - Application UID of application to be checked.

        * @return zero, if no cenrep-based configuration is used.

        * Non-zero is returned, if application UID is configured using AppArc's CenRep file.

        */

        IMPORT_C TInt CheckIconConfiguration( TUid aAppUid );

        /**

        * Add one wallpaper.

        *

        * @param aFilename a fully qualified path(incl. path + filename)

        *   of the wallpaper

        * @param aTargetSize - Decoded size. 

        * if not set, Both portait and landscape(base on screen size) will be decoded. 

        */       

        IMPORT_C void AddWallpaperL( const TDesC& aFilename, const TSize& aTargetSize );

        /**

        * Remove one decoded wallpaper.

        *

        * @param aFilename a fully qualified path(incl. path + filename)

        *   of the wallpaper

        */        

        IMPORT_C void RemoveWallpaper( const TDesC& aFilename );

        /**

        * Remove all decoded wallpaper.

        */

        IMPORT_C void RemoveAllWallpapers( );

        /**

        * Get a decoded wallpaper.

        */

        IMPORT_C  CFbsBitmap* WallpaperImageL( const TDesC& aFilename );

    private: // Reserved exports

        /**

        * Reserved for future use.

        *

        * @since 2.0

        *

        * @return Always returns zero.

        */

        IMPORT_C TInt Reserved1();

        /**

        * Reserved for future use.

        *

        * @since 2.0

        *

        * @return Always returns zero.

        */

        IMPORT_C TInt Reserved2();

        /**

        * Reserved for future use.

        *

        * @since 2.0

        *

        * @return Always returns zero.

        */

        IMPORT_C TInt Reserved3();

        /**

        * Reserved for future use.

        *

        * @since 2.0

        */

        IMPORT_C void Reserved4();

    private:

        /**

        * Gets the server version.

        */

        TVersion Version() const;

        /**

        * Cancels send operation.

        */

        void SendCancel();

        /**

        * Completes event handling.

        */

        void EventHandled();

    private: // Data

        // Holds member variables of this class.

        TAknsSrvClientMemberData* iMemberData;

    private: // Friend classes