application/src/PodcastFeedViewUpdater.cpp
changeset 2 29cda98b007e
child 60 4d230e702aa3
equal deleted inserted replaced
1:5f8e5adbbed9 2:29cda98b007e
       
     1 /*
       
     2 * Copyright (c) 2010 Anders Fridlund, EmbedDev AB
       
     3 *
       
     4 * All rights reserved.
       
     5 * This component and the accompanying materials are made available
       
     6 * under the terms of the License "Eclipse Public License v1.0"
       
     7 * which accompanies this distribution, and is available
       
     8 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     9 *
       
    10 * Initial Contributors:
       
    11 * EmbedDev AB - initial contribution.
       
    12 *
       
    13 * Contributors:
       
    14 *
       
    15 * Description:
       
    16 *
       
    17 */
       
    18 
       
    19 #include "PodcastFeedViewUpdater.h"
       
    20 #include "PodcastFeedView.h"
       
    21 
       
    22 CPodcastFeedViewUpdater* CPodcastFeedViewUpdater::NewL(CPodcastFeedView& aPodcastFeedView)
       
    23 	{
       
    24 	CPodcastFeedViewUpdater* self = new (ELeave) CPodcastFeedViewUpdater(aPodcastFeedView);
       
    25 	CleanupStack::PushL(self);
       
    26 	self->ConstructL();
       
    27 	CleanupStack::Pop(self);
       
    28 	return self;
       
    29 	}
       
    30 
       
    31 void CPodcastFeedViewUpdater::StartUpdate(TInt aNbrItems)
       
    32 	{
       
    33 	// If there is an update in progress, stop it.
       
    34 	StopUpdate();
       
    35 	// Reset values to start an update from the beginning
       
    36 	iNbrItems = aNbrItems;
       
    37 	iNextItem = 0;
       
    38 	// Queue this active object to be run once
       
    39 	Call();
       
    40 	}
       
    41 
       
    42 void CPodcastFeedViewUpdater::StopUpdate()
       
    43 	{
       
    44 	// Cancel any outstanding request
       
    45 	Cancel();
       
    46 	// Reset values to zero. Not really necessary, but made for robustness
       
    47 	iNbrItems = 0;
       
    48 	iNextItem = 0;
       
    49 	}
       
    50 
       
    51 CPodcastFeedViewUpdater::~CPodcastFeedViewUpdater()
       
    52 	{
       
    53 	StopUpdate();
       
    54 	Deque();
       
    55 	}
       
    56         
       
    57 CPodcastFeedViewUpdater::CPodcastFeedViewUpdater(CPodcastFeedView& aPodcastFeedView)
       
    58 	: CAsyncOneShot(EPriorityNormal), iPodcastFeedView(aPodcastFeedView)
       
    59 	{
       
    60 	}
       
    61 
       
    62 void CPodcastFeedViewUpdater::ConstructL()
       
    63 	{
       
    64 	}
       
    65 
       
    66 void CPodcastFeedViewUpdater::RunL()
       
    67 	{
       
    68 	_LIT(KPanicCategory, "CPodcastFeedViewUpdater::RunL");
       
    69 	__ASSERT_DEBUG(iNextItem < iNbrItems, User::Panic(KPanicCategory, 0));
       
    70 	iPodcastFeedView.UpdateItemL(iNextItem++);
       
    71 	if (iNextItem < iNbrItems)
       
    72 		{
       
    73 		Call();
       
    74 		}
       
    75 	else
       
    76 		{
       
    77 		StopUpdate();
       
    78 		}
       
    79 	}
       
    80 
       
    81 TInt CPodcastFeedViewUpdater::RunError(TInt aError)
       
    82 	{
       
    83 	return aError;
       
    84 	}
       
    85