TB10.1 Example Applications: examples/Base/FileServer/FileChangeNotifier/inc/filechangenotifier.h Source File

00001 // Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).
-00002 // All rights reserved.
-00003 // This component and the accompanying materials are made available
-00004 // under the terms of "Eclipse Public License v1.0"
-00005 // which accompanies this distribution, and is available
-00006 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
-00007 //
-00008 // Initial Contributors:
-00009 // Nokia Corporation - initial contribution.
-00010 //
-00011 // Contributors:
-00012 //
-00013 // Description:
-00014 //
-00015 
-00016 
-00017 #ifndef __FILECHANGENOTIFIER_H__
-00018 #define __FILECHANGENOTIFIER_H__
-00019 
-00020 #include <e32base.h>
-00021 #include <e32cons.h>
-00022 #include <f32file.h>
-00023 #include <f32notification.h>
-00024 
-00025 /*
-00026  * Demonstrates the various features of Enhanced File change notifier.
-00027  * - User gets notified when there is a change in a File.
-00028  * - User gets notified when there is a change in a Folder.
-00029  * - User gets notified when there is a change in a Drive.
-00030  */
-00031 class CChangeNotifier: public CActive
-00032 {
-00033 public:
-00034     static CChangeNotifier* NewL(TInt aPriority = EPriorityStandard);
-00035     virtual ~CChangeNotifier();
-00036     void RequestCharacter(); 
-00037 protected:
-00038     void ConstructL();
-00039 
-00040 public:
-00041     enum TFileOperations{
-00042         ECreateFile,
-00043         EChangeFileContents,
-00044         ERenameFile,
-00045         EChangeFileAttributes ,
-00046         EDeleteFile,
-00047         ECreateFolder,
-00048         ERenameFolder,
-00049         EDeleteFolder,
-00050         EVolumeNameChange,
-00051         EMultipleNotifications
-00052         };
-00053 private: 
-00054     virtual void DoCancel();
-00055     virtual void RunL();
-00056     void PressAnyKey();
-00057     void NotifyChangeToFile(); // get notified when there is a change in the file.
-00058     void NotifyChangeToFolder(); // get notified when there is a change in the folder.
-00059     void CreateFile(); // get notified when a new file is created.
-00060     void ChangeFileContents(); // get notified when the file contents are changed.
-00061     void RenameFile(); // get notified when a file is renamed.
-00062     void ChangeFileAttributes (); // get notified when the file attributes change.
-00063     void DeleteFile(); // get notified when a file is deleted.
-00064     void CreateFolder(); // get notified when a folder is created.
-00065     void RenameFolder(); // get notified when a folder is renamed.
-00066     void DeleteFolder(); // get notified when a folder is deleted.
-00067     void DeleteFileandFolder(); // get notitified when a folder is deleted, file in the folder is also deleted.
-00068     void VolumeNameChange(); // get notified when there is a volume name change.
-00069     void MultipleNotifications(); // multiple notifications can be requested at once, completed notifications are filled in the buffer.
-00070     void DoChanges(CChangeNotifier::TFileOperations operation); // Do file/folder changes.
-00071     void ProcessMultipleChanges(const TFsNotification* aNotification); // Process the completion of multiple notifications requested by 'Multiple Notifications' use case.
-00072     
-00073 private: 
-00074     CChangeNotifier(TInt aPriority = EPriorityStandard );
-00075     /*
-00076      * These booleans are used to detect whether the file change operation was performed earlier or not.
-00077      * Ex: If a folder is already created and the user tries to create it once again, it prints that the file is created.
-00078      */
-00079     TBool iIsCreateFolder; // to verify whether a folder is created or not.
-00080     TBool iIsRenameFolder; // to verify whether the rename operation on a folder is performed already.
-00081     TBool iIsDeleteFolder; // to verify whether the delete folder operation is performed already.
-00082     TBool iIsVolumeNameChange; // to verify whether the volume name change operation is done already.
-00083     TBool iIsCreateFile; // to verify whether the file is created in the desired location already.
-00084     TBool iIsRenameFile; // to verify whether the rename operation on the file is performed already.
-00085     TBool iIsChangeFileAttributes ; // to verify whether the file attributed are changed already.
-00086     TBool iIsDeleteFile; // to verify whether the file is deleted already.
-00087     TBool iDeleteFileContinue; // this boolean is used when a folder with a file needs to be removed. it removes the file and then calls folder removal.
-00088     TBool iIsMultipleNotifications;
-00089     RFs iFs;
-00090     TChar iDrive; // System drive
-00091     TInt iDriveNumber; // drive number of U: drive
-00092     TBool iOption; // This boolean is used to exit, if none of the Main menu options is chosen.
-00093     TBool iOptionContinue; // it is used to continue with the Main menu, if none of the sub menu options is chosen.
-00094     CConsoleBase* iConsole;
-00095     CFsNotify* iNotify; // This is client which will be posting notification requests and will be notified after completion of these requests.
-00096     TRequestStatus iReqStatus;
-00097 };
-00098 #endif  // __CHANGENOTIFIER_H__
-00099 
-00100 
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