appfw/apparchitecture/inc/APACLN.H
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     1 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 // apacln.h
       
    16 //
       
    17 
       
    18 
       
    19 #ifndef __APACLN_H__
       
    20 #define __APACLN_H__
       
    21 
       
    22 #include <apparc.h>
       
    23 
       
    24 /** Allows CApaDocument-derived objects to be safely put onto the cleanup 
       
    25 stack, by calling CApaProcess::DestroyDocument() should a leave or a call 
       
    26 to CleanupStack::PopAndDestroy() occur.
       
    27 
       
    28 It is used as follows.
       
    29 @code
       
    30 TApaDocCleanupItem cleanup(iEikonEnv->Process(),doc);
       
    31 CleanupStack::PushL(cleanup);
       
    32 // some potentially leaving code here ...
       
    33 CleanupStack::Pop(cleanup);
       
    34 @endcode
       
    35 @publishedPartner
       
    36 @deprecated
       
    37 */
       
    38 class TApaDocCleanupItem
       
    39 	{
       
    40 public:
       
    41 	inline TApaDocCleanupItem(CApaProcess* aProcess,CApaDocument* aDoc);
       
    42 	inline operator TCleanupItem();
       
    43 private:
       
    44 	IMPORT_C static void DoCleanup(TAny* aPtr);
       
    45 public:
       
    46 	/** The process object that will be used to destroy the document. */
       
    47 	CApaProcess* iApaProcess;
       
    48 	/** The document to destroy as part of cleanup. */
       
    49 	CApaDocument* iApaDoc;
       
    50 	};
       
    51 
       
    52 
       
    53 /** Constructs a cleanup item object for the specified document.
       
    54 
       
    55 @param aProcess A pointer to the process object that will be used to destroy the document.
       
    56 @param aDoc The document to destroy as part of cleanup. */
       
    57 inline TApaDocCleanupItem::TApaDocCleanupItem(CApaProcess* aProcess,CApaDocument* aDoc)
       
    58 	: iApaProcess(aProcess), iApaDoc(aDoc)
       
    59 	{}
       
    60 
       
    61 /** A TCleanupItem cast operator that enables the TApaDocCleanupItem object to be pushed to 
       
    62 the cleanup stack as a TCleanupItem, so that the document will be properly destroyed 
       
    63 (by a call to CApaProcess::DestroyDocument()) should a leave or a call to 
       
    64 CleanupStack::PopAndDestroy() occur. */
       
    65 inline TApaDocCleanupItem::operator TCleanupItem()
       
    66 	{return TCleanupItem(DoCleanup,this);}
       
    67 
       
    68 #endif	// __APACLN_H__