/*
* Copyright (c) 2002-2007 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:  Uses notification framework to show a global confirmation query.
*
*/

#ifndef __AKNGLOBALCONFIRMATIONQUERY_H__
#define __AKNGLOBALCONFIRMATIONQUERY_H__

#include <AknNotify.h>
#include <AknNotifyStd.h>
#include <AknQueryDialog.h>
#include <AknsItemID.h>

class CAknSDData;

/**
* CAknGlobalConfirmationQuery
*   Uses notification framework to show a global confirmation query.
*   Usage:
*       Create an active object, start it and pass its TRequestStatus as a
*       parameter to ShowConfirmationQueryL. After the user presses a softkey,
*       the request status will hold the id of the pressed softkey. E.g. If 
*       the user selected Cancel, the request status will hold -1.
*
*   Example 1. Show the global confirmation query:
*        if ( iConfObserver )
*            {
*            iConfObserver->Cancel();
*            delete iConfObserver;
*            }
*        iConfObserver = new(ELeave) CGlobalConfirmationObserver(iEikonEnv);
*        iConfObserver->Start();
*        iGlobalConfirmationQuery->ShowMsgQueryL(
*            iConfObserver->iStatus, 
*            iPrompt, 
*            R_AVKON_SOFTKEYS_OK_CANCEL,
*            R_QUERY_NOTE_ANIMATION);
*
*
*   Example 2. Get and handle the result in active object.
*        void CMyActiveObject::RunL() 
*            {
*            TBuf<120> msg = _L("Received: ");
*            msg.AppendNum( iStatus.Int() );
*            iEnv->InfoMsg(msg);
*            Cancel();
*            }
*
*   Example 3. Update the query (softkeys)
*       iGlobalConfirmationQuery->UpdateConfirmationQuery( R_AVKON_SOFTKEYS_BACK );
*
*   Example 4. Cancel the query
*       iGlobalConfirmationQuery->CancelConfirmationQuery();
*
* NOTE !!! All descriptors passed as parameters need to be class members, i.e.
*           they cannot be local variables of a method. That is because
*           they need to exist when server gets the message.
*/

NONSHARABLE_CLASS(CAknGlobalConfirmationQuery) : public CBase
    {
    public:
        IMPORT_C static CAknGlobalConfirmationQuery* NewL();
        IMPORT_C static CAknGlobalConfirmationQuery* NewLC();
        IMPORT_C ~CAknGlobalConfirmationQuery();

        /**
        * Shows global confirmation query synchronously.
        *
        * @param    aStatus             TRequestStatus which will be completed when user
        *                               selects one item from the list query.
        * @param    aPrompt             Prompt text.
        * @param    aSoftkeys           Softkey resource. 
        * @param    aAnimation          Animation resource.
        * @param    aTone               Tone id.
        * @param    aDismissWithAllKeys If set ETrue the query gets dismissed with all
        *                               keypresses.
        */
        IMPORT_C void ShowConfirmationQueryL( 
            TRequestStatus& aStatus,
            const TDesC& aPrompt,
            TInt aSoftkeys = 0,
            TInt aAnimation = 0,
            const TDesC& aImageFile = KNullDesC,
            TInt aImageId = 0,
            TInt aImageMaskId = 0,
            CAknQueryDialog::TTone aTone = CAknQueryDialog::ENoTone,
            TBool aDismissWithAllKeys = EFalse );
        /**
        * Update the softkeys of the confirmation query.
        *
        * @param    aSoftkeys  New resource for softkeys.
        */
        IMPORT_C void UpdateConfirmationQuery( TInt aSoftkeys );

        /**
        * Cancel the confirmation query.
        */
        IMPORT_C void CancelConfirmationQuery();

        /**
        * Set skin id for query image. Must be called before ShowConfirmationQueryL in order to 
        * have effect. No need to use this method if image from avkon.mbm is used.
        *
        * @aparam aId   SkinId for image in query. If image is not found from the active skin, 
        *               image definitions used in ShowConfirmationQueryL are used instead.
        * @since S60 2.6
        */      
        IMPORT_C void SetImageSkinId( TAknsItemID& aId );
        
        /**
        * Sets additional information to be sent to secondary display. Takes ownership of object.
        * Must be called before sending data to notifier to have effect.
        *
        * @param aData Data to be sent to cover UI.
        * @since S60 3.1        
        * @internal to S60        
        */
        IMPORT_C void SetSecondaryDisplayData(CAknSDData* aData);
        
    private:
        CAknGlobalConfirmationQuery();
        void ConstructL(); 

    private:
        TAknGlobalQueryCmd iCmd;
        TInt iSoftkeys;
        TInt iAnimation;
        CAknQueryDialog::TTone iTone;
        RNotifier iNotify;
        CBufFlat *iBuffer;
        TPtrC8 iBufferPtr;
        TInt   iSkinsMajorId;
        TInt   iSkinsMinorId;
        CAknSDData* iAknSDData;
        TBuf8<1> iResultBuf; // Not really used, but needed to prevent buffer handling errors.
    };

#endif // __AKNGLOBALCONFIRMATIONQUERY_H__