menufw/hierarchynavigator/hnpresentationmodel/src/hnitemfocushandler.cpp
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     1 /*
       
     2 * Copyright (c) 2007 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:  Application UI class
       
    15 *  Version     : %version: 3 % << Don't touch! Updated by Synergy at check-out.
       
    16 */
       
    17 
       
    18 
       
    19 #include "hnitemfocushandler.h"
       
    20 #include "hnglobals.h"
       
    21 #include "hnsuitemodel.h"
       
    22 
       
    23 // ---------------------------------------------------------------------------
       
    24 // TFocusQueueItem::TFocusQueueItem( TInt aItemId, TInt aEventId )
       
    25 // ---------------------------------------------------------------------------
       
    26 //
       
    27 TFocusQueueItem::TFocusQueueItem( TInt aItemId, TInt aEventId ): 
       
    28 	iItemId( aItemId ),  iEventId( aEventId )
       
    29 	{
       
    30 	iTriggerTime.HomeTime();
       
    31 	}
       
    32 
       
    33 // ---------------------------------------------------------------------------
       
    34 // TFocusQueueItem::TriggerTime()
       
    35 // ---------------------------------------------------------------------------
       
    36 //
       
    37 TTime TFocusQueueItem::TriggerTime()
       
    38 	{
       
    39 	return iTriggerTime;
       
    40 	}
       
    41 
       
    42 // ---------------------------------------------------------------------------
       
    43 // TFocusQueueItem::ItemId()
       
    44 // ---------------------------------------------------------------------------
       
    45 //
       
    46 TInt TFocusQueueItem::ItemId()
       
    47 	{
       
    48 	return iItemId;
       
    49 	}
       
    50 
       
    51 // ---------------------------------------------------------------------------
       
    52 // TFocusQueueItem::EventId()
       
    53 // ---------------------------------------------------------------------------
       
    54 //
       
    55 TInt TFocusQueueItem::EventId()
       
    56 	{
       
    57 	return iEventId;
       
    58 	}
       
    59 
       
    60 // ---------------------------------------------------------------------------
       
    61 // TFocusQueueItem::CompareByTriggerTime( const TFocusQueueItem& aItem1,
       
    62 // const TFocusQueueItem& aItem2 )
       
    63 // ---------------------------------------------------------------------------
       
    64 //
       
    65 TInt TFocusQueueItem::CompareByTriggerTime( const TFocusQueueItem& aItem1,
       
    66 		const TFocusQueueItem& aItem2 )
       
    67 	{
       
    68 	if ( aItem1.iTriggerTime < aItem2.iTriggerTime )
       
    69 		{
       
    70 		return -1;
       
    71 		}
       
    72 	else
       
    73 		{
       
    74 		return 1;
       
    75 		}
       
    76 	}
       
    77    
       
    78 // ---------------------------------------------------------------------------
       
    79 // TFocusQueueItem::CompareByItemId( const TFocusQueueItem& aItem1,
       
    80 // const TFocusQueueItem& aItem2 )
       
    81 // ---------------------------------------------------------------------------
       
    82 //
       
    83 TBool TFocusQueueItem::CompareByItemId( const TFocusQueueItem& aItem1,
       
    84 		const TFocusQueueItem& aItem2 )
       
    85 	{
       
    86 	return aItem1.iItemId == aItem2.iItemId;
       
    87 	}
       
    88 
       
    89 // ---------------------------------------------------------------------------
       
    90 // CHnItemFocusHandler::CHnItemFocusHandler() 
       
    91 // ---------------------------------------------------------------------------
       
    92 //
       
    93 CHnItemFocusHandler::CHnItemFocusHandler() :
       
    94 	CActive(EPriorityLow) // Standard priority
       
    95 	{
       
    96 	}
       
    97 
       
    98 // ---------------------------------------------------------------------------
       
    99 // CHnItemFocusHandler* CHnItemFocusHandler::NewLC()
       
   100 // ---------------------------------------------------------------------------
       
   101 //
       
   102 CHnItemFocusHandler* CHnItemFocusHandler::NewLC( CHnSuiteModel* aSuiteModel )
       
   103 	{
       
   104 	CHnItemFocusHandler* self = new (ELeave) CHnItemFocusHandler();
       
   105 	CleanupStack::PushL(self);
       
   106 	self->ConstructL( aSuiteModel );
       
   107 	return self;
       
   108 	}
       
   109 
       
   110 // ---------------------------------------------------------------------------
       
   111 // CHnItemFocusHandler* CHnItemFocusHandler::NewL()
       
   112 // ---------------------------------------------------------------------------
       
   113 //
       
   114 CHnItemFocusHandler* CHnItemFocusHandler::NewL( CHnSuiteModel* aSuiteModel )
       
   115 	{
       
   116 	CHnItemFocusHandler* self = CHnItemFocusHandler::NewLC( aSuiteModel );
       
   117 	CleanupStack::Pop(); // self;
       
   118 	return self;
       
   119 	}
       
   120 
       
   121 // ---------------------------------------------------------------------------
       
   122 // CHnItemFocusHandler::ConstructL()
       
   123 // ---------------------------------------------------------------------------
       
   124 //
       
   125 void CHnItemFocusHandler::ConstructL( CHnSuiteModel* aSuiteModel )
       
   126 	{
       
   127 	CActiveScheduler::Add( this); // Add to scheduler
       
   128 	iSuiteModel = aSuiteModel;
       
   129 	}
       
   130 
       
   131 // ---------------------------------------------------------------------------
       
   132 // CHnItemFocusHandler::~CHnItemFocusHandler(
       
   133 // ---------------------------------------------------------------------------
       
   134 //
       
   135 CHnItemFocusHandler::~CHnItemFocusHandler()
       
   136 	{
       
   137 	Cancel(); // Cancel any request, if outstanding
       
   138 	
       
   139 //	handle all pending unfocus events synchronously.
       
   140 	for(TInt i = 0; i < iFocusQueue.Count(); i++ )
       
   141 		{
       
   142 		if ( KIdFocusLost == iFocusQueue[i].EventId() )
       
   143 			{
       
   144 			if( iSuiteModel )
       
   145 			    {
       
   146 	            TRAP_IGNORE( iSuiteModel->OfferHnEventL( 
       
   147 	                    KIdFocusLost, iFocusQueue[i].ItemId(), NULL ) );
       
   148 			    }
       
   149 			}
       
   150 		}
       
   151 	iFocusQueue.Reset();
       
   152 	}
       
   153 
       
   154 // ---------------------------------------------------------------------------
       
   155 // CHnItemFocusHandler::DoCancel()
       
   156 // ---------------------------------------------------------------------------
       
   157 //
       
   158 void CHnItemFocusHandler::DoCancel()
       
   159 	{
       
   160 //	TRequestStatus* status = &iStatus;
       
   161 //	User::RequestComplete( status, KErrCancel);
       
   162 	}
       
   163 
       
   164 // ---------------------------------------------------------------------------
       
   165 // CHnItemFocusHandler::StartL(TTimeIntervalMicroSeconds32 aDelay)
       
   166 // ---------------------------------------------------------------------------
       
   167 //
       
   168 void CHnItemFocusHandler::SetFocusL( TInt aEventId, TBool aItemId )
       
   169 	{
       
   170 	TLinearOrder<TFocusQueueItem> byTriggerTime( 
       
   171 			TFocusQueueItem::CompareByTriggerTime );
       
   172 	TFocusQueueItem focusItem(aItemId, aEventId);
       
   173 	RemoveDuplicatedItem( focusItem );
       
   174 	iFocusQueue.InsertInOrderL( focusItem, byTriggerTime );
       
   175 	if ( !IsActive() )
       
   176 		{
       
   177 		SetActive();
       
   178     	TRequestStatus* status = &iStatus;
       
   179     	User::RequestComplete( status, KErrNone );
       
   180 		}
       
   181 	}
       
   182 
       
   183 // ---------------------------------------------------------------------------
       
   184 // CHnItemFocusHandler::RunL()
       
   185 // ---------------------------------------------------------------------------
       
   186 //
       
   187 void CHnItemFocusHandler::RunL()
       
   188 	{
       
   189 	TRAP_IGNORE( iSuiteModel->OfferHnEventL( 
       
   190 			iFocusQueue[0].EventId(), iFocusQueue[0].ItemId() , NULL ) );
       
   191 	iFocusQueue.Remove(0);
       
   192 	
       
   193 	if ( iFocusQueue.Count() > 0)
       
   194 		{
       
   195 		SetActive(); // Tell scheduler a request is active		
       
   196     	TRequestStatus* status = &iStatus;
       
   197     	User::RequestComplete( status, KErrNone );
       
   198 		}
       
   199 	}
       
   200 
       
   201 // ---------------------------------------------------------------------------
       
   202 // CHnItemFocusHandler::RunError(TInt aError)
       
   203 // ---------------------------------------------------------------------------
       
   204 //
       
   205 TInt CHnItemFocusHandler::RunError(TInt aError)
       
   206 	{
       
   207 	return aError;
       
   208 	}
       
   209 
       
   210 // ---------------------------------------------------------------------------
       
   211 // RemoveDuplicatedItem( const TFocusQueueItem& aFocusItem )
       
   212 // ---------------------------------------------------------------------------
       
   213 //
       
   214 void CHnItemFocusHandler::RemoveDuplicatedItem( const TFocusQueueItem& aFocusItem )
       
   215 	{
       
   216 	if ( iFocusQueue.Count() != 0 )
       
   217 		{
       
   218 		TIdentityRelation< TFocusQueueItem > byItemId( 
       
   219 				TFocusQueueItem::CompareByItemId );
       
   220 		TInt itemPosition;
       
   221 		itemPosition = iFocusQueue.Find( aFocusItem, byItemId );
       
   222 		if ( KErrNotFound != itemPosition )
       
   223 			{
       
   224 			iFocusQueue.Remove( itemPosition );
       
   225 			}
       
   226 		}
       
   227 	}
       
   228 
       
   229 // End of file
       
   230