homescreenpluginsrv/hspsmanager/src/hspsfilechangelistener.cpp
changeset 0 79c6a41cd166
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     1 /*
       
     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  hsps FileChangeListener listens to given file folder and notifies it observer
       
    15 *                if there is any file change.
       
    16 *
       
    17 *
       
    18 */
       
    19 
       
    20 #include "hsps_builds_cfg.hrh"
       
    21 #include "hspsfilechangelistener.h"
       
    22 
       
    23 #ifdef _hsps_EMULATOR_SUPPORT_
       
    24 #include "hspsfilechangelisteneremu.h"
       
    25 #endif
       
    26 
       
    27 #ifdef HSPS_LOG_ACTIVE
       
    28 #include <hspslogbus.h>
       
    29 #endif
       
    30 
       
    31 // ============================ MEMBER FUNCTIONS ===============================
       
    32 
       
    33 // -----------------------------------------------------------------------------
       
    34 // ChspsFileChangeListener::ChspsFileChangeListener
       
    35 // C++ default constructor can NOT contain any code, that
       
    36 // might leave.
       
    37 // -----------------------------------------------------------------------------
       
    38 //
       
    39 
       
    40 ChspsFileChangeListener::ChspsFileChangeListener( RFs& aFs, 
       
    41                                               MhspsFileChangeObserver& aObserver,
       
    42                                               TNotifyType aNotifyType,
       
    43                                               TListenerType aListenerType) :
       
    44     CActive( EPriorityStandard ), 
       
    45     iFs( aFs ), 
       
    46     iObserver( aObserver), 
       
    47     iNotifyType( aNotifyType ),
       
    48     iListenerType( aListenerType )
       
    49     {
       
    50     }
       
    51 
       
    52 // -----------------------------------------------------------------------------
       
    53 // ChspsFileChangeListener::ConstructL
       
    54 // Symbian 2nd phase constructor can leave.
       
    55 // -----------------------------------------------------------------------------
       
    56 //
       
    57 void ChspsFileChangeListener::ConstructL( const TDesC& aFullPath )
       
    58     {
       
    59     if ( aFullPath.Length() > 0 )
       
    60         {
       
    61         iFullPath.Append( aFullPath );
       
    62         }
       
    63     CActiveScheduler::Add( this );
       
    64     // should not make file change listener active yet because server must let 
       
    65     // start fully first. See ChspsThemeServer constructor.
       
    66 #ifdef _hsps_EMULATOR_SUPPORT_
       
    67    iFileChange = ChspsFileChangeListenerEmu::NewL( iFs, *this, EEmuNotifyAll, aFullPath);
       
    68 #endif
       
    69     }
       
    70 
       
    71 // -----------------------------------------------------------------------------
       
    72 // ChspsFileChangeListener::NewL
       
    73 // Two-phased constructor.
       
    74 // -----------------------------------------------------------------------------
       
    75 //
       
    76 ChspsFileChangeListener* ChspsFileChangeListener::NewL( RFs& aFs, 
       
    77                                                     MhspsFileChangeObserver& aObserver, 
       
    78                                                     TNotifyType aNotifyType,
       
    79                                                     const TDesC& aFullPath,
       
    80                                                     TListenerType aListenerType )
       
    81     {
       
    82     ChspsFileChangeListener* self = new(ELeave) ChspsFileChangeListener( aFs, 
       
    83         aObserver, 
       
    84         aNotifyType,
       
    85         aListenerType );
       
    86     CleanupStack::PushL( self );
       
    87     self->ConstructL( aFullPath );
       
    88     CleanupStack::Pop( self );
       
    89 
       
    90     return self;
       
    91     }
       
    92 
       
    93 
       
    94 // ------------------------------------------------------------------------------
       
    95 // ChspsFileChangeListener::~ChspsFileChangeListener
       
    96 //
       
    97 // ------------------------------------------------------------------------------
       
    98 ChspsFileChangeListener::~ChspsFileChangeListener()
       
    99     {
       
   100     iFs.NotifyChangeCancel(iStatus);
       
   101     Cancel();
       
   102 #ifdef _hsps_EMULATOR_SUPPORT_
       
   103     if (iFileChange)
       
   104         {
       
   105         delete iFileChange;
       
   106         iFileChange = NULL;
       
   107         }
       
   108 #endif
       
   109     }
       
   110 
       
   111 // -----------------------------------------------------------------------------
       
   112 // ChspsFileChangeListener::RunL
       
   113 // From CActive. Called when asynchronous request is completed. 
       
   114 // Notifies the observer
       
   115 // (other items were commented in a header).
       
   116 // -----------------------------------------------------------------------------
       
   117 //
       
   118 void ChspsFileChangeListener::RunL()
       
   119     {
       
   120     if ( iStatus.Int() == KErrNone ) 
       
   121         {
       
   122         InformObserver();
       
   123         }  
       
   124     }
       
   125 
       
   126 // -----------------------------------------------------------------------------
       
   127 // ChspsFileChangeListener::RunError
       
   128 // From CActive. Called when error occurred in asynchronous request
       
   129 // Notifies the observer
       
   130 // (other items were commented in a header).
       
   131 // -----------------------------------------------------------------------------
       
   132 //
       
   133 TInt ChspsFileChangeListener::RunError( TInt /*aError*/ )
       
   134     {
       
   135     return KErrNone;
       
   136     }
       
   137 
       
   138 // -----------------------------------------------------------------------------
       
   139 // ChspsFileChangeListener::DoCancel
       
   140 // From CActive. Called when asynchronous request is canceled
       
   141 // (other items were commented in a header).
       
   142 // -----------------------------------------------------------------------------
       
   143 //
       
   144 void ChspsFileChangeListener::DoCancel()
       
   145     {
       
   146     iFs.NotifyChangeCancel(iStatus);
       
   147     }
       
   148 
       
   149 // ------------------------------------------------------------------------------
       
   150 // ChspsFileChangeListener::Setup
       
   151 //
       
   152 // ------------------------------------------------------------------------------
       
   153 //
       
   154 void ChspsFileChangeListener::Setup()
       
   155     {
       
   156     if( !IsActive() )
       
   157         {
       
   158         iFs.NotifyChangeCancel(iStatus);
       
   159         if( iFullPath.Length() > 0 && !IsActive() )
       
   160             {
       
   161             iStatus = KRequestPending;
       
   162             SetActive();
       
   163             iFs.NotifyChange( ENotifyAll, iStatus, iFullPath );
       
   164             }
       
   165         }
       
   166 #ifdef _hsps_EMULATOR_SUPPORT_
       
   167     TInt errCode = KErrNone;
       
   168     TRAP(errCode,iFileChange->StartL();)
       
   169     if (errCode)
       
   170         {
       
   171 #ifdef HSPS_LOG_ACTIVE
       
   172         if( iLogBus )
       
   173             {
       
   174             iLogBus->LogText( _L( "ChspsFileChangeListener::Setup() errCode=%d" ),
       
   175                     errCode );
       
   176             }
       
   177 #endif        
       
   178         } 
       
   179 #endif
       
   180     }
       
   181     
       
   182 // ------------------------------------------------------------------------------
       
   183 // ChspsFileChangeListener::InformObserver
       
   184 //
       
   185 // ------------------------------------------------------------------------------
       
   186 //
       
   187 void ChspsFileChangeListener::InformObserver()
       
   188     {
       
   189     
       
   190     switch (iListenerType)
       
   191         {
       
   192         case TImportDirListener:
       
   193             {
       
   194             iObserver.HandleFileSystemChange();        
       
   195             }
       
   196         break;
       
   197         
       
   198         case TRepositoryListener:
       
   199             {
       
   200             iObserver.HandleRepositoryChange();    
       
   201             }
       
   202         break;
       
   203         
       
   204         default:
       
   205             {
       
   206 #ifdef HSPS_LOG_ACTIVE
       
   207             if( iLogBus )
       
   208                 {
       
   209                 iLogBus->LogText( _L( "ChspsFileChangeListener::RunL(): - Invalid listener type(%d)" ),
       
   210                         iListenerType );
       
   211                 }
       
   212 #endif       
       
   213             }
       
   214         break;
       
   215         }
       
   216     }
       
   217 
       
   218 #ifdef _hsps_EMULATOR_SUPPORT_
       
   219 
       
   220 // ------------------------------------------------------------------------------
       
   221 // ChspsFileChangeListener::HandleEmuFileSystemChange
       
   222 //
       
   223 // ------------------------------------------------------------------------------
       
   224 //
       
   225 void ChspsFileChangeListener::HandleEmuFileSystemChange()
       
   226     {
       
   227     InformObserver();
       
   228     }    
       
   229 #endif
       
   230 
       
   231 #ifdef HSPS_LOG_ACTIVE
       
   232 // ------------------------------------------------------------------------------
       
   233 // ChspsFileChangeListener::SetLogBus
       
   234 // Set log bus to be used.
       
   235 // ------------------------------------------------------------------------------
       
   236 //
       
   237 void ChspsFileChangeListener::SetLogBus( ChspsLogBus* aLogBus )
       
   238     {
       
   239     iLogBus = aLogBus;
       
   240     
       
   241 #ifdef _hsps_EMULATOR_SUPPORT_
       
   242     if( iFileChange )
       
   243         {
       
   244         iFileChange->SetLogBus( aLogBus );
       
   245         }
       
   246 #endif
       
   247 
       
   248     }
       
   249 #endif
       
   250 
       
   251 // End of File