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 // AppArc recognizer and application scanning

    15 // 

    16 //

    17 

    18 #if !defined(__APSSCAN_H__)

    19 #define __APSSCAN_H__

    20 

    21 #if !defined(__F32FILE_H__)

    22 #include <f32file.h>

    23 #endif

    24 

    25 //This class is not moved as part of PREQ2478,as the derived class is a published Partner.

    26 //Also this class doesn't expose any specific functionality..

    27 

    28 class MApaFsChangeObserver

    29 /** An interface for notifying a file system observer when

    30 a change has been made to the file system.

    31 This interface is intended for use only by CApaFsMonitor.

    32 

    33 @internalComponent

    34 */

    35 	{

    36 public:

    37 	virtual void FsChanged()=0;

    38 	};

    39 

    40 class CApaFsMonitor : public CBase, MApaFsChangeObserver

    41 /** Monitors changes in the file system.

    42 

    43 If a change is detected, the callback function supplied by the user of the class 

    44 is called after a 0.25 second delay. If there are further changes, the callback 

    45 is not called again until 3 seconds have elapsed. It uses RFs::NotifyChange() 

    46 to request notifications.

    47 

    48 @see RFs::NotifyChange()

    49 

    50 @publishedPartner 

    51 @released */

    52 	{

    53 public:

    54 	IMPORT_C ~CApaFsMonitor();

    55 	IMPORT_C static CApaFsMonitor* NewL(RFs& aFs, const TDesC& aLocation, TCallBack aCallBack);

    56 	IMPORT_C void SetBlocked(TBool aIsBlocked);

    57 	IMPORT_C void Start(TNotifyType aNotifyType);

    58 	IMPORT_C TNotifyType NotifyType() const;

    59 	IMPORT_C void AddLocationL(const TDesC& aLocation);

    60 	IMPORT_C void Cancel();

    61 	TBool AnyNotificationImpending() const;

    62 private:

    63 

    64 	CApaFsMonitor(RFs& aFs, TCallBack aCallBack);

    65 	static TInt TimerCallBack(TAny* aObject);

    66 	void DoStart();

    67 

    68 	// from MApaFsChangeObserver

    69 	void FsChanged();

    70 	class CApaFsNotifier;

    71 private:

    72 	RFs& iFs;

    73 	TNotifyType iNotifyType;

    74 	TCallBack iCallBack;

    75 	CPeriodic* iFsTimer;

    76 	TBool iFsHasChanged;

    77 	TBool iIsBlocked;

    78 	RPointerArray<CApaFsNotifier> iNotifiers;

    79 	};

    80 

    81 #ifndef SYMBIAN_ENABLE_SPLIT_HEADERS

    82 #if !defined(__WINC__)

    83 class REComSession;

    84 /** 

    85 CApaEComMonitor

    86 

    87 A low priority (EPriorityIdle) active object which monitors changes 

    88 in the Ecom plugin.

    89 

    90 @see REComSession::NotifyOnChange()

    91 

    92 @internalAll 

    93 */ 

    94 

    95 class CApaEComMonitor : public CActive

    96 	{

    97 public:

    98 	 ~CApaEComMonitor();

    99 	 static CApaEComMonitor* NewL(TCallBack aCallBack);

   100 	 void Start();

   101 private:

   102 	CApaEComMonitor(TCallBack aCallBack);

   103 	void ConstructL ();

   104 	static TInt TimerCallBack(TAny* aObject);

   105 	void DoStart();

   106 	void DoCancel();

   107 	void RunL();

   108 private:

   109 	TCallBack iCallBack;

   110 	CPeriodic* iEComTimer;

   111 	REComSession* iEComSession;

   112 	TBool iEComHasChanged;

   113 	};

   114 

   115 #endif

   116 #endif //SYMBIAN_ENABLE_SPLIT_HEADERS

   117 

   118 #endif