engine/collectionframework/thumbnailcreator/thumbnailcomposerplugin/glxthumbnailcomposerplugin.cpp
changeset 71 27f2d7aec52a
parent 69 45459746d5e8
child 72 0a8e959402e5
equal deleted inserted replaced
69:45459746d5e8 71:27f2d7aec52a
     1 /*
       
     2 * Copyright (c) 2008-2009 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:   Thumbnail Composer plugin
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 /**
       
    21  * @internal reviewed 12/07/2007 by Simon Brooks
       
    22  */
       
    23 
       
    24 #include <e32base.h>
       
    25 
       
    26 #include <mdelogiccondition.h>
       
    27 #include <mdeconstants.h>
       
    28 
       
    29 #include <mpxcollectionutility.h>
       
    30 #include <mpxcollectionpath.h>
       
    31 #include <mpxcollectionmessage.h>
       
    32 #include <mpxmessagegeneraldefs.h>
       
    33 #include <mpxcollectionframeworkdefs.h>
       
    34 
       
    35 #include <glxassert.h>
       
    36 #include <glxcollectionpluginall.hrh>
       
    37 #include <glxthumbnailattributeinfo.h>
       
    38 #include <glxbackgroundtnmessagedefs.h>
       
    39 #include <glxmediaid.h>
       
    40 #include <glxthumbnailinfo.h>
       
    41 #include <glxfilterfactory.h>
       
    42 #include <glxcommandfactory.h>
       
    43 #include <glxtracer.h>
       
    44 
       
    45 #include "glxthumbnailcomposerplugin.h"
       
    46 
       
    47 // This can be any number other than zero
       
    48 const TUint KGlxBackgroundThumbnailAttributeId = 1;
       
    49 const TInt KGlxThumbnailComposerInactivityTimeout = 30; // seconds
       
    50 const TInt KGlxThumbnailComposerDelay = 10000; // microseconds
       
    51 const TInt KGlxThumbnailComposerHarvestDelay = 5000000; // microseconds
       
    52 const TInt KGlxThumbnailComposerLargeDelay = 30000000; // microseconds
       
    53 
       
    54 // ---------------------------------------------------------------------------
       
    55 // destructor
       
    56 // ---------------------------------------------------------------------------
       
    57 //
       
    58 CGlxThumbnailCompeserInactivityTimer::~CGlxThumbnailCompeserInactivityTimer()
       
    59     {
       
    60     // no implementation
       
    61     }
       
    62 
       
    63 
       
    64 // ---------------------------------------------------------------------------
       
    65 // NewL
       
    66 // ---------------------------------------------------------------------------
       
    67 //
       
    68 CGlxThumbnailCompeserInactivityTimer* CGlxThumbnailCompeserInactivityTimer::NewL(TInt aPriority, CGlxThumbnailComposerPlugin& aCallback)
       
    69     {
       
    70 	TRACER("CGlxThumbnailCompeserInactivityTimer::NewL");
       
    71 	CGlxThumbnailCompeserInactivityTimer* self = 
       
    72 	                              new (ELeave) CGlxThumbnailCompeserInactivityTimer(aPriority, aCallback);
       
    73 	CleanupStack::PushL(self);
       
    74 	self->ConstructL();
       
    75 	CleanupStack::Pop(self);
       
    76 	CActiveScheduler::Add(self);
       
    77 	return self;
       
    78     }
       
    79 
       
    80 // ---------------------------------------------------------------------------
       
    81 // After
       
    82 // ---------------------------------------------------------------------------
       
    83 //
       
    84 void CGlxThumbnailCompeserInactivityTimer::After( TTimeIntervalMicroSeconds32 aInterval )
       
    85     {
       
    86     TRACER("CGlxThumbnailCompeserInactivityTimer::RunL");
       
    87 
       
    88     // Fix for ELLZ-7DBBDZ and JPKN-7M2AYJ: to prevent a KERN EXEC 15 panic that occurs 
       
    89     // if a timer request is made while one is already outstanding.
       
    90     Cancel();
       
    91     // Forward the call on to the base class.
       
    92     CTimer::After( aInterval );
       
    93     }
       
    94 
       
    95 // ---------------------------------------------------------------------------
       
    96 // constructor
       
    97 // ---------------------------------------------------------------------------
       
    98 //
       
    99 CGlxThumbnailCompeserInactivityTimer::CGlxThumbnailCompeserInactivityTimer(TInt aPriority, CGlxThumbnailComposerPlugin& aCallback)
       
   100          : CTimer(aPriority), iCallback(aCallback)
       
   101         {
       
   102         // no implementation
       
   103         }
       
   104 
       
   105 // ---------------------------------------------------------------------------
       
   106 // RunL
       
   107 // ---------------------------------------------------------------------------
       
   108 //
       
   109 void CGlxThumbnailCompeserInactivityTimer::RunL()
       
   110     {
       
   111 	TRACER("CGlxThumbnailCompeserInactivityTimer::RunL");
       
   112 	switch (iCallback.iState)
       
   113 	    {
       
   114     	case CGlxThumbnailComposerPlugin::EStateFirstOpening:
       
   115     	case CGlxThumbnailComposerPlugin::EStateOpening:
       
   116     	    {
       
   117             iCallback.DoOpenCollectionL();
       
   118             break;
       
   119     	    }
       
   120         case CGlxThumbnailComposerPlugin::EStateActiveSmall:
       
   121         case CGlxThumbnailComposerPlugin::EStateActiveLarge:
       
   122             {
       
   123         	iCallback.DoRequestItemL();
       
   124         	break;
       
   125             }
       
   126         case CGlxThumbnailComposerPlugin::EStateClosing:
       
   127             {
       
   128             iCallback.CloseCollection();
       
   129             break;
       
   130             }
       
   131 	    }
       
   132     }
       
   133 
       
   134 // ---------------------------------------------------------------------------
       
   135 // DoCancel
       
   136 // ---------------------------------------------------------------------------
       
   137 //
       
   138 void CGlxThumbnailCompeserInactivityTimer::DoCancel()
       
   139     {
       
   140     // no implementation
       
   141     }
       
   142 
       
   143 // ---------------------------------------------------------------------------
       
   144 // RunError
       
   145 // ---------------------------------------------------------------------------
       
   146 //
       
   147 TInt CGlxThumbnailCompeserInactivityTimer::RunError(TInt /*aError*/)
       
   148     {
       
   149 	TRACER("CGlxThumbnailCompeserInactivityTimer::RunError");
       
   150     iCallback.ReturnToIdle();
       
   151     return KErrNone;
       
   152     }
       
   153 
       
   154 
       
   155 
       
   156 // ---------------------------------------------------------------------------
       
   157 // NewL
       
   158 // ---------------------------------------------------------------------------
       
   159 //
       
   160 CGlxThumbnailComposerPlugin* CGlxThumbnailComposerPlugin::NewL()
       
   161 	{
       
   162 	TRACER("CGlxThumbnailComposerPlugin::NewL");
       
   163 	CGlxThumbnailComposerPlugin* self = 
       
   164 	                              new (ELeave) CGlxThumbnailComposerPlugin();
       
   165 	CleanupStack::PushL(self);
       
   166 	self->ConstructL();
       
   167 	CleanupStack::Pop(self);
       
   168 	return self;
       
   169 	}
       
   170 
       
   171 // ---------------------------------------------------------------------------
       
   172 // ~CGlxThumbnailComposerPlugin
       
   173 // ---------------------------------------------------------------------------
       
   174 //
       
   175 CGlxThumbnailComposerPlugin::~CGlxThumbnailComposerPlugin()
       
   176 	{
       
   177 	delete iPath;
       
   178 	delete iCollectionUtility;
       
   179 	if ( iInactivityTimer )
       
   180 	    {
       
   181     	iInactivityTimer->Cancel();
       
   182 	    }
       
   183 	delete iInactivityTimer;
       
   184 	}
       
   185 
       
   186 // ---------------------------------------------------------------------------
       
   187 // CGlxThumbnailComposerPlugin
       
   188 // ---------------------------------------------------------------------------
       
   189 //
       
   190 CGlxThumbnailComposerPlugin::CGlxThumbnailComposerPlugin() : iLastError(KErrNone)
       
   191 	{
       
   192 	}
       
   193 
       
   194 // ---------------------------------------------------------------------------
       
   195 // ConstructL
       
   196 // ---------------------------------------------------------------------------
       
   197 //
       
   198 void CGlxThumbnailComposerPlugin::ConstructL()
       
   199 	{
       
   200 	TRACER("CGlxThumbnailComposerPlugin::ConstructL");
       
   201 	iInactivityTimer = CGlxThumbnailCompeserInactivityTimer::NewL(CActive::EPriorityIdle, *this);
       
   202 	}
       
   203 
       
   204 // ---------------------------------------------------------------------------
       
   205 // SetObservers
       
   206 // ---------------------------------------------------------------------------
       
   207 //
       
   208 void CGlxThumbnailComposerPlugin::SetObservers()
       
   209 	{
       
   210 	TRAPD(err, SetObserversL());
       
   211     GLX_ASSERT_ALWAYS( KErrNone == err, Panic( EGlxPanicEnvironment ),
       
   212                         "CGlxThumbnailComposerPlugin cannot set observers, reset Harvester server" );
       
   213 	}
       
   214 
       
   215 // ---------------------------------------------------------------------------
       
   216 // SetObserversL
       
   217 // ---------------------------------------------------------------------------
       
   218 //
       
   219 void CGlxThumbnailComposerPlugin::SetObserversL()
       
   220 	{
       
   221 	TRACER("CGlxThumbnailComposerPlugin::SetObserversL");
       
   222 	if ( iSession )
       
   223 		{
       
   224 		CMdELogicCondition* condition = 
       
   225 		            CMdELogicCondition::NewLC( ELogicConditionOperatorOr );
       
   226 
       
   227 #ifdef GLX_USE_MDS_2_0
       
   228 
       
   229 		CMdENamespaceDef* defaultNamespace = 
       
   230 		               iSession->GetDefaultNamespaceDefL();
       
   231 
       
   232     	CMdEObjectDef* imageDef = defaultNamespace->GetObjectDefL(
       
   233     	                                MdeConstants::Image::KImageObject );
       
   234 		condition->AddObjectConditionL( *imageDef );
       
   235 
       
   236     	CMdEObjectDef* videoDef = defaultNamespace->GetObjectDefL(
       
   237     	                                MdeConstants::Video::KVideoObject );
       
   238 		condition->AddObjectConditionL( *videoDef );
       
   239 
       
   240 #else
       
   241 
       
   242 		CMdENamespaceDef& defaultNamespace = 
       
   243 		               iSession->GetDefaultNamespaceDefL();
       
   244 
       
   245     	CMdEObjectDef& imageDef = defaultNamespace.GetObjectDefL(
       
   246     	                                MdeConstants::Image::KImageObject );
       
   247 		condition->AddObjectConditionL( imageDef );
       
   248 
       
   249     	CMdEObjectDef& videoDef = defaultNamespace.GetObjectDefL(
       
   250     	                                MdeConstants::Video::KVideoObject );
       
   251 		condition->AddObjectConditionL( videoDef );
       
   252 
       
   253 #endif
       
   254 
       
   255 		iSession->AddObjectObserverL( *this, condition );
       
   256     	CleanupStack::Pop( condition );
       
   257     	
       
   258         if ( iState == EStateIdle )
       
   259             {
       
   260             iState = EStateFirstOpening;
       
   261             iInactivityTimer->After(KGlxThumbnailComposerLargeDelay);
       
   262             }
       
   263 		}
       
   264 	}
       
   265 
       
   266 // ---------------------------------------------------------------------------
       
   267 // RemoveObservers
       
   268 // ---------------------------------------------------------------------------
       
   269 //
       
   270 void CGlxThumbnailComposerPlugin::RemoveObservers()
       
   271 	{
       
   272 	if ( iSession )
       
   273 		{
       
   274 #ifdef GLX_USE_MDS_2_0
       
   275 		iSession->RemoveObjectObserver( *this );
       
   276 #else
       
   277 		TRAP_IGNORE(iSession->RemoveObjectObserverL( *this ));
       
   278 #endif
       
   279 		}
       
   280 	}
       
   281 
       
   282 // ---------------------------------------------------------------------------
       
   283 // IsComposingComplete
       
   284 // ---------------------------------------------------------------------------
       
   285 //
       
   286 TBool CGlxThumbnailComposerPlugin::IsComposingComplete()
       
   287 	{
       
   288 	TRACER("CGlxThumbnailComposerPlugin::IsComposingComplete");
       
   289     return ( iState == EStateIdle );
       
   290 	}
       
   291 
       
   292 #ifdef GLX_USE_MDS_2_0
       
   293 
       
   294 // ---------------------------------------------------------------------------
       
   295 // HandleObjectAdded
       
   296 // ---------------------------------------------------------------------------
       
   297 //
       
   298 void CGlxThumbnailComposerPlugin::HandleObjectAdded(
       
   299         CMdESession& /*aSession*/, const RArray<TItemId>& /*aObjectIdArray*/ )
       
   300 	{
       
   301 	TRACER("CGlxThumbnailComposerPlugin::HandleObjectAdded");
       
   302     if ( ( iState == EStateIdle ) || ( iState == EStateFirstOpening ) || ( iState == EStateClosing ) )
       
   303         {
       
   304         iInactivityTimer->Cancel();
       
   305         iState = EStateOpening;
       
   306         iInactivityTimer->After(20000000);
       
   307         }
       
   308     else
       
   309         {
       
   310         iLastError = 1;
       
   311         iState = EStateActiveLarge;
       
   312         }
       
   313 	}
       
   314 
       
   315 // ---------------------------------------------------------------------------
       
   316 // HandleObjectModified
       
   317 // ---------------------------------------------------------------------------
       
   318 //
       
   319 void CGlxThumbnailComposerPlugin::HandleObjectModified(
       
   320                                     CMdESession& /*aSession*/, 
       
   321                                     const RArray<TItemId>& /*aObjectIdArray*/)
       
   322 	{
       
   323 	//no implemention needed
       
   324 	}
       
   325 
       
   326 // ---------------------------------------------------------------------------
       
   327 // HandleObjectRemoved
       
   328 // ---------------------------------------------------------------------------
       
   329 //
       
   330 void CGlxThumbnailComposerPlugin::HandleObjectRemoved(
       
   331                                     CMdESession& /*aSession*/, 
       
   332                                     const RArray<TItemId>& /*aObjectIdArray*/)
       
   333 	{
       
   334 	//no implemention needed
       
   335 	}
       
   336 
       
   337 #else
       
   338 
       
   339 void CGlxThumbnailComposerPlugin::HandleObjectNotification(CMdESession& /*aSession*/, 
       
   340 					TObserverNotificationType aType,
       
   341 					const RArray<TItemId>& /*aObjectIdArray*/)
       
   342 	{
       
   343 	
       
   344 	TRACER("CGlxThumbnailComposerPlugin::HandleObjectNotification");
       
   345     if (aType == ENotifyAdd)
       
   346     	{
       
   347 			if ( iState == EStateIdle )
       
   348 		        {
       
   349 		        iState = EStateOpening;
       
   350 		        iInactivityTimer->After(0);
       
   351 		        }
       
   352 		    else
       
   353 		        {
       
   354 		        iLastError = 1;
       
   355 		        iState = EStateActiveLarge;
       
   356 		        }
       
   357     	}
       
   358 	}
       
   359 
       
   360 #endif
       
   361 
       
   362 // ---------------------------------------------------------------------------
       
   363 // HandleCollectionMediaL
       
   364 // ---------------------------------------------------------------------------
       
   365 //
       
   366 void CGlxThumbnailComposerPlugin::HandleCollectionMediaL(
       
   367                                 const CMPXMedia& /*aMedia*/, TInt aError )
       
   368     {
       
   369 	TRACER("CGlxThumbnailComposerPlugin::HandleCollectionMediaL");
       
   370     if ( iPath && KErrNone != aError )
       
   371         {
       
   372         //GLX_LOG_WARNING1( "Error %d getting media", aError );
       
   373 
       
   374         // Error generating thumbnails, try the next item
       
   375         iLastError = aError;
       
   376         iCurrentIndex++;
       
   377         RequestItemL();
       
   378         }
       
   379     }
       
   380 
       
   381 // ---------------------------------------------------------------------------
       
   382 // HandleCollectionMessageL
       
   383 // ---------------------------------------------------------------------------
       
   384 //
       
   385 void CGlxThumbnailComposerPlugin::HandleCollectionMessage(
       
   386                                         CMPXMessage* aMsg, TInt /*aErr*/ )
       
   387     {
       
   388 	TRACER("CGlxThumbnailComposerPlugin::HandleCollectionMessage");
       
   389     if ( iState != EStateIdle && aMsg )
       
   390         {
       
   391         TRAPD( err, DoHandleCollectionMessageL( *aMsg ) );
       
   392         if ( KErrNone != err )
       
   393             {
       
   394             //GLX_LOG_WARNING1( "Error %d handling message", err );
       
   395             ReturnToIdle();
       
   396             }
       
   397         }
       
   398     }
       
   399 
       
   400 // ---------------------------------------------------------------------------
       
   401 // HandleOpenL
       
   402 // ---------------------------------------------------------------------------
       
   403 //
       
   404 void CGlxThumbnailComposerPlugin::HandleOpenL( const CMPXMedia& /*aEntries*/,
       
   405                           TInt /*aIndex*/, TBool /*aComplete*/, TInt aError )
       
   406     {
       
   407 	TRACER("CGlxThumbnailComposerPlugin::HandleOpenL");
       
   408     if ( KErrNone != aError )
       
   409         {
       
   410         //GLX_LOG_WARNING1( "Error %d opening collection", aError );
       
   411         ReturnToIdle();
       
   412         }
       
   413     }
       
   414 
       
   415 // ---------------------------------------------------------------------------
       
   416 // HandleOpenL
       
   417 // ---------------------------------------------------------------------------
       
   418 //
       
   419 void CGlxThumbnailComposerPlugin::HandleOpenL(
       
   420             const CMPXCollectionPlaylist& /*aPlaylist*/, TInt /*aError*/ )
       
   421     {
       
   422 	// No implemention needed
       
   423     }
       
   424 
       
   425 // ---------------------------------------------------------------------------
       
   426 // HandleCommandComplete
       
   427 // ---------------------------------------------------------------------------
       
   428 //
       
   429 void CGlxThumbnailComposerPlugin::HandleCommandComplete(
       
   430                         CMPXCommand* /*aCommandResult*/, TInt /*aError*/ )
       
   431     {
       
   432 	TRACER("CGlxThumbnailComposerPlugin::HandleCommandComplete");
       
   433     if( EStateCleanup == iState )
       
   434         {
       
   435         ReturnToIdle();
       
   436         }
       
   437     else
       
   438         {
       
   439         iInactivityTimer->After(0);
       
   440         }
       
   441     }
       
   442 
       
   443 // ---------------------------------------------------------------------------
       
   444 // DoOpenCollectionL
       
   445 // ---------------------------------------------------------------------------
       
   446 //
       
   447 void CGlxThumbnailComposerPlugin::DoOpenCollectionL()
       
   448     {
       
   449 	TRACER("CGlxThumbnailComposerPlugin::HandleCollectionMediaL");
       
   450     if ( !iCollectionUtility )
       
   451         {
       
   452         // Open isolated collection utility
       
   453         iCollectionUtility = MMPXCollectionUtility::NewL(
       
   454                                                 this, KMcModeIsolated );
       
   455         }
       
   456 
       
   457     CMPXFilter* filter = CMPXFilter::NewL();
       
   458     CleanupStack::PushL(filter);
       
   459     filter->SetTObjectValueL<TGlxFilterSortDirection>(KGlxFilterGeneralSortDirection, EGlxFilterSortDirectionDescending);        
       
   460     iCollectionUtility->Collection().SetFilterL(filter);
       
   461     CleanupStack::PopAndDestroy(filter);
       
   462 
       
   463     CMPXCollectionPath* path = CMPXCollectionPath::NewL();
       
   464     CleanupStack::PushL( path );
       
   465     // argument  path  all collection id
       
   466    	path->AppendL( KGlxCollectionPluginAllImplementationUid );
       
   467 
       
   468 	iCollectionUtility->Collection().OpenL( *path );
       
   469  	CleanupStack::PopAndDestroy( path );
       
   470 
       
   471     iState = EStateActiveSmall;                    
       
   472     }
       
   473 
       
   474 // ---------------------------------------------------------------------------
       
   475 // DoHandleCollectionMessageL
       
   476 // ---------------------------------------------------------------------------
       
   477 //
       
   478 void CGlxThumbnailComposerPlugin::DoHandleCollectionMessageL(
       
   479                                                  const CMPXMessage& aMsg )
       
   480     {
       
   481 	TRACER("CGlxThumbnailComposerPlugin::DoHandleCollectionMessageL");
       
   482     if ( aMsg.IsSupported( KMPXMessageGeneralId ) )
       
   483         {
       
   484         TInt messageId = aMsg.ValueTObjectL<TInt>( KMPXMessageGeneralId );
       
   485 
       
   486 	    // Is it a background thumbnail message        
       
   487 	    if ( KGlxMessageIdBackgroundThumbnail == messageId )
       
   488 	        {
       
   489 	        // Is it the item expected
       
   490 	        TGlxMediaId id( ( TUint32 )
       
   491 	             aMsg.ValueTObjectL<TMPXItemId>( KGlxBackgroundThumbnailMediaId ) );
       
   492 	        if ( iPath && id.Value()
       
   493 	                        == ( TUint32 )iPath->IdOfIndex( iCurrentIndex ) )
       
   494 	            {
       
   495 	            TInt error = aMsg.ValueTObjectL<TInt>( KGlxBackgroundThumbnailError );
       
   496 	            if ( error == KErrCancel )
       
   497 	                {
       
   498 	                iState = EStateActiveLarge;
       
   499     	            iLastError = error;
       
   500 	                }
       
   501 	            else if( KErrNone != error )
       
   502 	                {
       
   503                     //GLX_LOG_WARNING1( "Error %d in command", error );
       
   504                     error = KErrNone;
       
   505 	                }
       
   506 	            // Yes, then request the next item
       
   507 	            iCurrentIndex++;
       
   508 	            RequestItemL();
       
   509 	            }
       
   510 	        }
       
   511         else if ( KMPXMessageGeneral == messageId
       
   512                 && aMsg.IsSupported( KMPXMessageGeneralEvent ) )
       
   513             {
       
   514             TInt messageEvent = aMsg.ValueTObjectL<TInt>( KMPXMessageGeneralEvent );
       
   515 
       
   516             // Is it a path changed event
       
   517             if ( TMPXCollectionMessage::EPathChanged == messageEvent
       
   518                 && aMsg.IsSupported( KMPXMessageGeneralType ) )
       
   519                 {
       
   520     	        TInt messageType = aMsg.ValueTObjectL<TInt>( KMPXMessageGeneralType );
       
   521 
       
   522              	if ( EMcPathChangedByOpen == messageType
       
   523              	    && iCollectionUtility && !iPath )
       
   524             	    {
       
   525          		    iPath = iCollectionUtility->Collection().PathL();
       
   526 
       
   527                    	iCurrentIndex = 0;
       
   528                     RequestItemL();
       
   529             	    }
       
   530                }
       
   531             }
       
   532         }
       
   533     }
       
   534 
       
   535 // ---------------------------------------------------------------------------
       
   536 // RequestItemL
       
   537 // ---------------------------------------------------------------------------
       
   538 //
       
   539 void CGlxThumbnailComposerPlugin::RequestItemL()
       
   540     {
       
   541 	TRACER("CGlxThumbnailComposerPlugin::RequestItemL");
       
   542     if ( iLastError == KErrCancel )
       
   543         {
       
   544         iInactivityTimer->Inactivity(KGlxThumbnailComposerInactivityTimeout);
       
   545         }
       
   546     else if ( iLastError == 1 )
       
   547         {
       
   548         iInactivityTimer->After(KGlxThumbnailComposerHarvestDelay);
       
   549         }
       
   550     else
       
   551         {
       
   552         iInactivityTimer->After(KGlxThumbnailComposerDelay);
       
   553         }
       
   554     iLastError = KErrNone;
       
   555     }
       
   556     
       
   557 // ---------------------------------------------------------------------------
       
   558 // DoRequestItemL
       
   559 // ---------------------------------------------------------------------------
       
   560 //
       
   561 void CGlxThumbnailComposerPlugin::DoRequestItemL()
       
   562     {
       
   563 	TRACER("CGlxThumbnailComposerPlugin::DoRequestItemL");
       
   564 
       
   565     if ( iPath && iCurrentIndex < iPath->Count() )
       
   566         {
       
   567         GLX_ASSERT_ALWAYS( iCollectionUtility, Panic( EGlxPanicNullPointer ),
       
   568                             "No collection utility" );
       
   569         // request next item
       
   570     	iPath->Set( iCurrentIndex );
       
   571 
       
   572         RArray<TMPXAttribute> attrs;
       
   573         CleanupClosePushL( attrs );
       
   574         // Add thumbnail attribute
       
   575         attrs.AppendL( TMPXAttribute(
       
   576                 KGlxMediaIdThumbnail, KGlxBackgroundThumbnailAttributeId ) );
       
   577 
       
   578         // Don't add spec for bitmap handle, to request background thumbnail
       
   579         CMPXAttributeSpecs* attrSpecs = NULL;
       
   580         
       
   581         // Start first task
       
   582         iCollectionUtility->Collection().MediaL(
       
   583                                     *iPath, attrs.Array(), attrSpecs );
       
   584         CleanupStack::PopAndDestroy( &attrs );
       
   585         }
       
   586     else
       
   587         {
       
   588         delete iPath;
       
   589         iPath = NULL;
       
   590         
       
   591         if ( iState == EStateActiveLarge )
       
   592             {
       
   593             // go on to do small thumbnails
       
   594             DoOpenCollectionL();
       
   595             }
       
   596         else
       
   597             {
       
   598             CMPXCommand* command
       
   599                             = TGlxCommandFactory::ThumbnailCleanupCommandLC();
       
   600             iCollectionUtility->Collection().CommandL( *command );
       
   601             CleanupStack::PopAndDestroy( command );
       
   602 
       
   603             iState = EStateCleanup;
       
   604             }
       
   605         }
       
   606     }
       
   607 
       
   608 // ---------------------------------------------------------------------------
       
   609 // ReturnToIdle
       
   610 // ---------------------------------------------------------------------------
       
   611 //
       
   612 void CGlxThumbnailComposerPlugin::ReturnToIdle()
       
   613     {
       
   614     iState = EStateClosing;
       
   615     iInactivityTimer->After(KGlxThumbnailComposerLargeDelay);
       
   616     }
       
   617 
       
   618 // ---------------------------------------------------------------------------
       
   619 // CloseCollection
       
   620 // ---------------------------------------------------------------------------
       
   621 //
       
   622 void CGlxThumbnailComposerPlugin::CloseCollection()
       
   623     {
       
   624     if ( ( EStateClosing == iState ) && iCollectionUtility )
       
   625         {
       
   626         iCollectionUtility->Close();
       
   627         iCollectionUtility = NULL;
       
   628         iState = EStateIdle;
       
   629         }
       
   630     }